[PATCH v5 net-next 02/12] net: dsa: Introduce driver for NXP SJA1105 5-port L2 switch

From: Vladimir Oltean
Date: Thu May 02 2019 - 16:25:40 EST

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At this moment the following is supported:
* Link state management through phylib
* Autonomous L2 forwarding managed through iproute2 bridge commands.

IP termination must be done currently through the master netdevice,
since the switch is unmanaged at this point and using
DSA_TAG_PROTO_NONE.

Signed-off-by: Vladimir Oltean <olteanv@xxxxxxxxx>
Signed-off-by: Georg Waibel <georg.waibel@xxxxxxxxxxxxxxxxx>
Acked-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
Changes in v5:
Stripped blank lines at the end of files.
Added Kconfig "select" for PACKING and CRC32.

Changes in v4:
Rehashed all preprocessor definitions to be prefixed with SJA1105 except
OP_READ, OP_WRITE and OP_DEL.

Changes in v3:
None.

Changes in v2:
1. Device ID is no longer auto-detected but enforced based on explicit DT
compatible string. This helps with stricter checking of DT bindings.
2. Group all device-specific operations into a sja1105_info structure and
avoid using the IS_ET() and IS_PQRS() macros at runtime as much as possible.
5. Miscellaneous cosmetic cleanup in sja1105_clocking.c

MAINTAINERS | 6 +
drivers/net/dsa/Kconfig | 2 +
drivers/net/dsa/Makefile | 1 +
drivers/net/dsa/sja1105/Kconfig | 16 +
drivers/net/dsa/sja1105/Makefile | 8 +
drivers/net/dsa/sja1105/sja1105.h | 138 +++
drivers/net/dsa/sja1105/sja1105_clocking.c | 598 +++++++++++
.../net/dsa/sja1105/sja1105_dynamic_config.c | 489 +++++++++
.../net/dsa/sja1105/sja1105_dynamic_config.h | 43 +
drivers/net/dsa/sja1105/sja1105_main.c | 928 +++++++++++++++++
drivers/net/dsa/sja1105/sja1105_spi.c | 553 ++++++++++
.../net/dsa/sja1105/sja1105_static_config.c | 949 ++++++++++++++++++
.../net/dsa/sja1105/sja1105_static_config.h | 250 +++++
include/linux/dsa/sja1105.h | 19 +
14 files changed, 4000 insertions(+)
create mode 100644 drivers/net/dsa/sja1105/Kconfig
create mode 100644 drivers/net/dsa/sja1105/Makefile
create mode 100644 drivers/net/dsa/sja1105/sja1105.h
create mode 100644 drivers/net/dsa/sja1105/sja1105_clocking.c
create mode 100644 drivers/net/dsa/sja1105/sja1105_dynamic_config.c
create mode 100644 drivers/net/dsa/sja1105/sja1105_dynamic_config.h
create mode 100644 drivers/net/dsa/sja1105/sja1105_main.c
create mode 100644 drivers/net/dsa/sja1105/sja1105_spi.c
create mode 100644 drivers/net/dsa/sja1105/sja1105_static_config.c
create mode 100644 drivers/net/dsa/sja1105/sja1105_static_config.h
create mode 100644 include/linux/dsa/sja1105.h

diff --git a/MAINTAINERS b/MAINTAINERS
index ff029f3d0f13..25db3db8fe38 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11120,6 +11120,12 @@ S: Maintained
F: Documentation/devicetree/bindings/sound/sgtl5000.txt
F: sound/soc/codecs/sgtl5000*

+NXP SJA1105 ETHERNET SWITCH DRIVER
+M: Vladimir Oltean <olteanv@xxxxxxxxx>
+L: linux-kernel@xxxxxxxxxxxxxxx
+S: Maintained
+F: drivers/net/dsa/sja1105
+
NXP TDA998X DRM DRIVER
M: Russell King <linux@xxxxxxxxxxxxxxx>
S: Maintained
diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index 82560b710681..c6c5ecdbcaef 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -51,6 +51,8 @@ source "drivers/net/dsa/microchip/Kconfig"

source "drivers/net/dsa/mv88e6xxx/Kconfig"

+source "drivers/net/dsa/sja1105/Kconfig"
+
config NET_DSA_QCA8K
tristate "Qualcomm Atheros QCA8K Ethernet switch family support"
depends on NET_DSA
diff --git a/drivers/net/dsa/Makefile b/drivers/net/dsa/Makefile
index 82e5d794c41f..fefb6aaa82ba 100644
--- a/drivers/net/dsa/Makefile
+++ b/drivers/net/dsa/Makefile
@@ -18,3 +18,4 @@ obj-$(CONFIG_NET_DSA_VITESSE_VSC73XX) += vitesse-vsc73xx.o
obj-y += b53/
obj-y += microchip/
obj-y += mv88e6xxx/
+obj-y += sja1105/
diff --git a/drivers/net/dsa/sja1105/Kconfig b/drivers/net/dsa/sja1105/Kconfig
new file mode 100644
index 000000000000..038685bb9d57
--- /dev/null
+++ b/drivers/net/dsa/sja1105/Kconfig
@@ -0,0 +1,16 @@
+config NET_DSA_SJA1105
+tristate "NXP SJA1105 Ethernet switch family support"
+ depends on NET_DSA && SPI
+ select PACKING
+ select CRC32
+ help
+ This is the driver for the NXP SJA1105 automotive Ethernet switch
+ family. These are 5-port devices and are managed over an SPI
+ interface. Probing is handled based on OF bindings and so is the
+ linkage to phylib. The driver supports the following revisions:
+ - SJA1105E (Gen. 1, No TT-Ethernet)
+ - SJA1105T (Gen. 1, TT-Ethernet)
+ - SJA1105P (Gen. 2, No SGMII, No TT-Ethernet)
+ - SJA1105Q (Gen. 2, No SGMII, TT-Ethernet)
+ - SJA1105R (Gen. 2, SGMII, No TT-Ethernet)
+ - SJA1105S (Gen. 2, SGMII, TT-Ethernet)
diff --git a/drivers/net/dsa/sja1105/Makefile b/drivers/net/dsa/sja1105/Makefile
new file mode 100644
index 000000000000..d3237b313a4e
--- /dev/null
+++ b/drivers/net/dsa/sja1105/Makefile
@@ -0,0 +1,8 @@
+obj-$(CONFIG_NET_DSA_SJA1105) += sja1105.o
+
+sja1105-objs := \
+ sja1105_spi.o \
+ sja1105_main.o \
+ sja1105_clocking.o \
+ sja1105_static_config.o \
+ sja1105_dynamic_config.o \
diff --git a/drivers/net/dsa/sja1105/sja1105.h b/drivers/net/dsa/sja1105/sja1105.h
new file mode 100644
index 000000000000..e01cb854cbcd
--- /dev/null
+++ b/drivers/net/dsa/sja1105/sja1105.h
@@ -0,0 +1,138 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Copyright (c) 2018, Sensor-Technik Wiedemann GmbH
+ * Copyright (c) 2018-2019, Vladimir Oltean <olteanv@xxxxxxxxx>
+ */
+#ifndef _SJA1105_H
+#define _SJA1105_H
+
+#include <linux/dsa/sja1105.h>
+#include <net/dsa.h>
+#include "sja1105_static_config.h"
+
+#define SJA1105_NUM_PORTS 5
+#define SJA1105_NUM_TC 8
+#define SJA1105ET_FDB_BIN_SIZE 4
+
+/* Keeps the different addresses between E/T and P/Q/R/S */
+struct sja1105_regs {
+ u64 device_id;
+ u64 prod_id;
+ u64 status;
+ u64 rgu;
+ u64 config;
+ u64 rmii_pll1;
+ u64 pad_mii_tx[SJA1105_NUM_PORTS];
+ u64 cgu_idiv[SJA1105_NUM_PORTS];
+ u64 rgmii_pad_mii_tx[SJA1105_NUM_PORTS];
+ u64 mii_tx_clk[SJA1105_NUM_PORTS];
+ u64 mii_rx_clk[SJA1105_NUM_PORTS];
+ u64 mii_ext_tx_clk[SJA1105_NUM_PORTS];
+ u64 mii_ext_rx_clk[SJA1105_NUM_PORTS];
+ u64 rgmii_tx_clk[SJA1105_NUM_PORTS];
+ u64 rmii_ref_clk[SJA1105_NUM_PORTS];
+ u64 rmii_ext_tx_clk[SJA1105_NUM_PORTS];
+ u64 mac[SJA1105_NUM_PORTS];
+ u64 mac_hl1[SJA1105_NUM_PORTS];
+ u64 mac_hl2[SJA1105_NUM_PORTS];
+ u64 qlevel[SJA1105_NUM_PORTS];
+};
+
+struct sja1105_info {
+ u64 device_id;
+ /* Needed for distinction between P and R, and between Q and S
+ * (since the parts with/without SGMII share the same
+ * switch core and device_id)
+ */
+ u64 part_no;
+ const struct sja1105_dynamic_table_ops *dyn_ops;
+ const struct sja1105_table_ops *static_ops;
+ const struct sja1105_regs *regs;
+ int (*reset_cmd)(const void *ctx, const void *data);
+ const char *name;
+};
+
+struct sja1105_private {
+ struct sja1105_static_config static_config;
+ const struct sja1105_info *info;
+ struct gpio_desc *reset_gpio;
+ struct spi_device *spidev;
+ struct dsa_switch *ds;
+};
+
+#include "sja1105_dynamic_config.h"
+
+struct sja1105_spi_message {
+ u64 access;
+ u64 read_count;
+ u64 address;
+};
+
+typedef enum {
+ SPI_READ = 0,
+ SPI_WRITE = 1,
+} sja1105_spi_rw_mode_t;
+
+/* From sja1105_spi.c */
+int sja1105_spi_send_packed_buf(const struct sja1105_private *priv,
+ sja1105_spi_rw_mode_t rw, u64 reg_addr,
+ void *packed_buf, size_t size_bytes);
+int sja1105_spi_send_int(const struct sja1105_private *priv,
+ sja1105_spi_rw_mode_t rw, u64 reg_addr,
+ u64 *value, u64 size_bytes);
+int sja1105_spi_send_long_packed_buf(const struct sja1105_private *priv,
+ sja1105_spi_rw_mode_t rw, u64 base_addr,
+ void *packed_buf, u64 buf_len);
+int sja1105_static_config_upload(struct sja1105_private *priv);
+
+extern struct sja1105_info sja1105e_info;
+extern struct sja1105_info sja1105t_info;
+extern struct sja1105_info sja1105p_info;
+extern struct sja1105_info sja1105q_info;
+extern struct sja1105_info sja1105r_info;
+extern struct sja1105_info sja1105s_info;
+
+/* From sja1105_clocking.c */
+
+typedef enum {
+ XMII_MAC = 0,
+ XMII_PHY = 1,
+} sja1105_mii_role_t;
+
+typedef enum {
+ XMII_MODE_MII = 0,
+ XMII_MODE_RMII = 1,
+ XMII_MODE_RGMII = 2,
+} sja1105_phy_interface_t;
+
+typedef enum {
+ SJA1105_SPEED_10MBPS = 3,
+ SJA1105_SPEED_100MBPS = 2,
+ SJA1105_SPEED_1000MBPS = 1,
+ SJA1105_SPEED_AUTO = 0,
+} sja1105_speed_t;
+
+int sja1105_clocking_setup_port(struct sja1105_private *priv, int port);
+int sja1105_clocking_setup(struct sja1105_private *priv);
+
+/* From sja1105_dynamic_config.c */
+
+int sja1105_dynamic_config_read(struct sja1105_private *priv,
+ enum sja1105_blk_idx blk_idx,
+ int index, void *entry);
+int sja1105_dynamic_config_write(struct sja1105_private *priv,
+ enum sja1105_blk_idx blk_idx,
+ int index, void *entry, bool keep);
+
+/* Common implementations for the static and dynamic configs */
+size_t sja1105_l2_forwarding_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op);
+size_t sja1105pqrs_l2_lookup_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op);
+size_t sja1105et_l2_lookup_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op);
+size_t sja1105_vlan_lookup_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op);
+size_t sja1105pqrs_mac_config_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op);
+
+#endif
diff --git a/drivers/net/dsa/sja1105/sja1105_clocking.c b/drivers/net/dsa/sja1105/sja1105_clocking.c
new file mode 100644
index 000000000000..598544297931
--- /dev/null
+++ b/drivers/net/dsa/sja1105/sja1105_clocking.c
@@ -0,0 +1,598 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/* Copyright (c) 2016-2018, NXP Semiconductors
+ * Copyright (c) 2018-2019, Vladimir Oltean <olteanv@xxxxxxxxx>
+ */
+#include <linux/packing.h>
+#include "sja1105.h"
+
+#define SJA1105_SIZE_CGU_CMD 4
+
+struct sja1105_cfg_pad_mii_tx {
+ u64 d32_os;
+ u64 d32_ipud;
+ u64 d10_os;
+ u64 d10_ipud;
+ u64 ctrl_os;
+ u64 ctrl_ipud;
+ u64 clk_os;
+ u64 clk_ih;
+ u64 clk_ipud;
+};
+
+/* UM10944 Table 82.
+ * IDIV_0_C to IDIV_4_C control registers
+ * (addr. 10000Bh to 10000Fh)
+ */
+struct sja1105_cgu_idiv {
+ u64 clksrc;
+ u64 autoblock;
+ u64 idiv;
+ u64 pd;
+};
+
+/* PLL_1_C control register
+ *
+ * SJA1105 E/T: UM10944 Table 81 (address 10000Ah)
+ * SJA1105 P/Q/R/S: UM11040 Table 116 (address 10000Ah)
+ */
+struct sja1105_cgu_pll_ctrl {
+ u64 pllclksrc;
+ u64 msel;
+ u64 autoblock;
+ u64 psel;
+ u64 direct;
+ u64 fbsel;
+ u64 bypass;
+ u64 pd;
+};
+
+enum {
+ CLKSRC_MII0_TX_CLK = 0x00,
+ CLKSRC_MII0_RX_CLK = 0x01,
+ CLKSRC_MII1_TX_CLK = 0x02,
+ CLKSRC_MII1_RX_CLK = 0x03,
+ CLKSRC_MII2_TX_CLK = 0x04,
+ CLKSRC_MII2_RX_CLK = 0x05,
+ CLKSRC_MII3_TX_CLK = 0x06,
+ CLKSRC_MII3_RX_CLK = 0x07,
+ CLKSRC_MII4_TX_CLK = 0x08,
+ CLKSRC_MII4_RX_CLK = 0x09,
+ CLKSRC_PLL0 = 0x0B,
+ CLKSRC_PLL1 = 0x0E,
+ CLKSRC_IDIV0 = 0x11,
+ CLKSRC_IDIV1 = 0x12,
+ CLKSRC_IDIV2 = 0x13,
+ CLKSRC_IDIV3 = 0x14,
+ CLKSRC_IDIV4 = 0x15,
+};
+
+/* UM10944 Table 83.
+ * MIIx clock control registers 1 to 30
+ * (addresses 100013h to 100035h)
+ */
+struct sja1105_cgu_mii_ctrl {
+ u64 clksrc;
+ u64 autoblock;
+ u64 pd;
+};
+
+static void sja1105_cgu_idiv_packing(void *buf, struct sja1105_cgu_idiv *idiv,
+ enum packing_op op)
+{
+ const int size = 4;
+
+ sja1105_packing(buf, &idiv->clksrc, 28, 24, size, op);
+ sja1105_packing(buf, &idiv->autoblock, 11, 11, size, op);
+ sja1105_packing(buf, &idiv->idiv, 5, 2, size, op);
+ sja1105_packing(buf, &idiv->pd, 0, 0, size, op);
+}
+
+static int sja1105_cgu_idiv_config(struct sja1105_private *priv, int port,
+ bool enabled, int factor)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct device *dev = priv->ds->dev;
+ struct sja1105_cgu_idiv idiv;
+ u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
+
+ if (enabled && factor != 1 && factor != 10) {
+ dev_err(dev, "idiv factor must be 1 or 10\n");
+ return -ERANGE;
+ }
+
+ /* Payload for packed_buf */
+ idiv.clksrc = 0x0A; /* 25MHz */
+ idiv.autoblock = 1; /* Block clk automatically */
+ idiv.idiv = factor - 1; /* Divide by 1 or 10 */
+ idiv.pd = enabled ? 0 : 1; /* Power down? */
+ sja1105_cgu_idiv_packing(packed_buf, &idiv, PACK);
+
+ return sja1105_spi_send_packed_buf(priv, SPI_WRITE,
+ regs->cgu_idiv[port], packed_buf,
+ SJA1105_SIZE_CGU_CMD);
+}
+
+static void
+sja1105_cgu_mii_control_packing(void *buf, struct sja1105_cgu_mii_ctrl *cmd,
+ enum packing_op op)
+{
+ const int size = 4;
+
+ sja1105_packing(buf, &cmd->clksrc, 28, 24, size, op);
+ sja1105_packing(buf, &cmd->autoblock, 11, 11, size, op);
+ sja1105_packing(buf, &cmd->pd, 0, 0, size, op);
+}
+
+static int sja1105_cgu_mii_tx_clk_config(struct sja1105_private *priv,
+ int port, sja1105_mii_role_t role)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct sja1105_cgu_mii_ctrl mii_tx_clk;
+ const int mac_clk_sources[] = {
+ CLKSRC_MII0_TX_CLK,
+ CLKSRC_MII1_TX_CLK,
+ CLKSRC_MII2_TX_CLK,
+ CLKSRC_MII3_TX_CLK,
+ CLKSRC_MII4_TX_CLK,
+ };
+ const int phy_clk_sources[] = {
+ CLKSRC_IDIV0,
+ CLKSRC_IDIV1,
+ CLKSRC_IDIV2,
+ CLKSRC_IDIV3,
+ CLKSRC_IDIV4,
+ };
+ u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
+ int clksrc;
+
+ if (role == XMII_MAC)
+ clksrc = mac_clk_sources[port];
+ else
+ clksrc = phy_clk_sources[port];
+
+ /* Payload for packed_buf */
+ mii_tx_clk.clksrc = clksrc;
+ mii_tx_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
+ mii_tx_clk.pd = 0; /* Power Down off => enabled */
+ sja1105_cgu_mii_control_packing(packed_buf, &mii_tx_clk, PACK);
+
+ return sja1105_spi_send_packed_buf(priv, SPI_WRITE,
+ regs->mii_tx_clk[port], packed_buf,
+ SJA1105_SIZE_CGU_CMD);
+}
+
+static int
+sja1105_cgu_mii_rx_clk_config(struct sja1105_private *priv, int port)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct sja1105_cgu_mii_ctrl mii_rx_clk;
+ u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
+ const int clk_sources[] = {
+ CLKSRC_MII0_RX_CLK,
+ CLKSRC_MII1_RX_CLK,
+ CLKSRC_MII2_RX_CLK,
+ CLKSRC_MII3_RX_CLK,
+ CLKSRC_MII4_RX_CLK,
+ };
+
+ /* Payload for packed_buf */
+ mii_rx_clk.clksrc = clk_sources[port];
+ mii_rx_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
+ mii_rx_clk.pd = 0; /* Power Down off => enabled */
+ sja1105_cgu_mii_control_packing(packed_buf, &mii_rx_clk, PACK);
+
+ return sja1105_spi_send_packed_buf(priv, SPI_WRITE,
+ regs->mii_rx_clk[port], packed_buf,
+ SJA1105_SIZE_CGU_CMD);
+}
+
+static int
+sja1105_cgu_mii_ext_tx_clk_config(struct sja1105_private *priv, int port)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct sja1105_cgu_mii_ctrl mii_ext_tx_clk;
+ u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
+ const int clk_sources[] = {
+ CLKSRC_IDIV0,
+ CLKSRC_IDIV1,
+ CLKSRC_IDIV2,
+ CLKSRC_IDIV3,
+ CLKSRC_IDIV4,
+ };
+
+ /* Payload for packed_buf */
+ mii_ext_tx_clk.clksrc = clk_sources[port];
+ mii_ext_tx_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
+ mii_ext_tx_clk.pd = 0; /* Power Down off => enabled */
+ sja1105_cgu_mii_control_packing(packed_buf, &mii_ext_tx_clk, PACK);
+
+ return sja1105_spi_send_packed_buf(priv, SPI_WRITE,
+ regs->mii_ext_tx_clk[port],
+ packed_buf, SJA1105_SIZE_CGU_CMD);
+}
+
+static int
+sja1105_cgu_mii_ext_rx_clk_config(struct sja1105_private *priv, int port)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct sja1105_cgu_mii_ctrl mii_ext_rx_clk;
+ u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
+ const int clk_sources[] = {
+ CLKSRC_IDIV0,
+ CLKSRC_IDIV1,
+ CLKSRC_IDIV2,
+ CLKSRC_IDIV3,
+ CLKSRC_IDIV4,
+ };
+
+ /* Payload for packed_buf */
+ mii_ext_rx_clk.clksrc = clk_sources[port];
+ mii_ext_rx_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
+ mii_ext_rx_clk.pd = 0; /* Power Down off => enabled */
+ sja1105_cgu_mii_control_packing(packed_buf, &mii_ext_rx_clk, PACK);
+
+ return sja1105_spi_send_packed_buf(priv, SPI_WRITE,
+ regs->mii_ext_rx_clk[port],
+ packed_buf, SJA1105_SIZE_CGU_CMD);
+}
+
+static int sja1105_mii_clocking_setup(struct sja1105_private *priv, int port,
+ sja1105_mii_role_t role)
+{
+ struct device *dev = priv->ds->dev;
+ int rc;
+
+ dev_dbg(dev, "Configuring MII-%s clocking\n",
+ (role == XMII_MAC) ? "MAC" : "PHY");
+ /* If role is MAC, disable IDIV
+ * If role is PHY, enable IDIV and configure for 1/1 divider
+ */
+ rc = sja1105_cgu_idiv_config(priv, port, (role == XMII_PHY), 1);
+ if (rc < 0)
+ return rc;
+
+ /* Configure CLKSRC of MII_TX_CLK_n
+ * * If role is MAC, select TX_CLK_n
+ * * If role is PHY, select IDIV_n
+ */
+ rc = sja1105_cgu_mii_tx_clk_config(priv, port, role);
+ if (rc < 0)
+ return rc;
+
+ /* Configure CLKSRC of MII_RX_CLK_n
+ * Select RX_CLK_n
+ */
+ rc = sja1105_cgu_mii_rx_clk_config(priv, port);
+ if (rc < 0)
+ return rc;
+
+ if (role == XMII_PHY) {
+ /* Per MII spec, the PHY (which is us) drives the TX_CLK pin */
+
+ /* Configure CLKSRC of EXT_TX_CLK_n
+ * Select IDIV_n
+ */
+ rc = sja1105_cgu_mii_ext_tx_clk_config(priv, port);
+ if (rc < 0)
+ return rc;
+
+ /* Configure CLKSRC of EXT_RX_CLK_n
+ * Select IDIV_n
+ */
+ rc = sja1105_cgu_mii_ext_rx_clk_config(priv, port);
+ if (rc < 0)
+ return rc;
+ }
+ return 0;
+}
+
+static void
+sja1105_cgu_pll_control_packing(void *buf, struct sja1105_cgu_pll_ctrl *cmd,
+ enum packing_op op)
+{
+ const int size = 4;
+
+ sja1105_packing(buf, &cmd->pllclksrc, 28, 24, size, op);
+ sja1105_packing(buf, &cmd->msel, 23, 16, size, op);
+ sja1105_packing(buf, &cmd->autoblock, 11, 11, size, op);
+ sja1105_packing(buf, &cmd->psel, 9, 8, size, op);
+ sja1105_packing(buf, &cmd->direct, 7, 7, size, op);
+ sja1105_packing(buf, &cmd->fbsel, 6, 6, size, op);
+ sja1105_packing(buf, &cmd->bypass, 1, 1, size, op);
+ sja1105_packing(buf, &cmd->pd, 0, 0, size, op);
+}
+
+static int sja1105_cgu_rgmii_tx_clk_config(struct sja1105_private *priv,
+ int port, sja1105_speed_t speed)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct sja1105_cgu_mii_ctrl txc;
+ u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
+ int clksrc;
+
+ if (speed == SJA1105_SPEED_1000MBPS) {
+ clksrc = CLKSRC_PLL0;
+ } else {
+ int clk_sources[] = {CLKSRC_IDIV0, CLKSRC_IDIV1, CLKSRC_IDIV2,
+ CLKSRC_IDIV3, CLKSRC_IDIV4};
+ clksrc = clk_sources[port];
+ }
+
+ /* RGMII: 125MHz for 1000, 25MHz for 100, 2.5MHz for 10 */
+ txc.clksrc = clksrc;
+ /* Autoblock clk while changing clksrc */
+ txc.autoblock = 1;
+ /* Power Down off => enabled */
+ txc.pd = 0;
+ sja1105_cgu_mii_control_packing(packed_buf, &txc, PACK);
+
+ return sja1105_spi_send_packed_buf(priv, SPI_WRITE,
+ regs->rgmii_tx_clk[port],
+ packed_buf, SJA1105_SIZE_CGU_CMD);
+}
+
+/* AGU */
+static void
+sja1105_cfg_pad_mii_tx_packing(void *buf, struct sja1105_cfg_pad_mii_tx *cmd,
+ enum packing_op op)
+{
+ const int size = 4;
+
+ sja1105_packing(buf, &cmd->d32_os, 28, 27, size, op);
+ sja1105_packing(buf, &cmd->d32_ipud, 25, 24, size, op);
+ sja1105_packing(buf, &cmd->d10_os, 20, 19, size, op);
+ sja1105_packing(buf, &cmd->d10_ipud, 17, 16, size, op);
+ sja1105_packing(buf, &cmd->ctrl_os, 12, 11, size, op);
+ sja1105_packing(buf, &cmd->ctrl_ipud, 9, 8, size, op);
+ sja1105_packing(buf, &cmd->clk_os, 4, 3, size, op);
+ sja1105_packing(buf, &cmd->clk_ih, 2, 2, size, op);
+ sja1105_packing(buf, &cmd->clk_ipud, 1, 0, size, op);
+}
+
+static int sja1105_rgmii_cfg_pad_tx_config(struct sja1105_private *priv,
+ int port)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct sja1105_cfg_pad_mii_tx pad_mii_tx;
+ u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
+
+ /* Payload */
+ pad_mii_tx.d32_os = 3; /* TXD[3:2] output stage: */
+ /* high noise/high speed */
+ pad_mii_tx.d10_os = 3; /* TXD[1:0] output stage: */
+ /* high noise/high speed */
+ pad_mii_tx.d32_ipud = 2; /* TXD[3:2] input stage: */
+ /* plain input (default) */
+ pad_mii_tx.d10_ipud = 2; /* TXD[1:0] input stage: */
+ /* plain input (default) */
+ pad_mii_tx.ctrl_os = 3; /* TX_CTL / TX_ER output stage */
+ pad_mii_tx.ctrl_ipud = 2; /* TX_CTL / TX_ER input stage (default) */
+ pad_mii_tx.clk_os = 3; /* TX_CLK output stage */
+ pad_mii_tx.clk_ih = 0; /* TX_CLK input hysteresis (default) */
+ pad_mii_tx.clk_ipud = 2; /* TX_CLK input stage (default) */
+ sja1105_cfg_pad_mii_tx_packing(packed_buf, &pad_mii_tx, PACK);
+
+ return sja1105_spi_send_packed_buf(priv, SPI_WRITE,
+ regs->rgmii_pad_mii_tx[port],
+ packed_buf, SJA1105_SIZE_CGU_CMD);
+}
+
+static int sja1105_rgmii_clocking_setup(struct sja1105_private *priv, int port)
+{
+ struct device *dev = priv->ds->dev;
+ struct sja1105_mac_config_entry *mac;
+ sja1105_speed_t speed;
+ int rc;
+
+ mac = priv->static_config.tables[BLK_IDX_MAC_CONFIG].entries;
+ speed = mac[port].speed;
+
+ dev_dbg(dev, "Configuring port %d RGMII at speed %dMbps\n",
+ port, speed);
+
+ switch (speed) {
+ case SJA1105_SPEED_1000MBPS:
+ /* 1000Mbps, IDIV disabled (125 MHz) */
+ rc = sja1105_cgu_idiv_config(priv, port, false, 1);
+ break;
+ case SJA1105_SPEED_100MBPS:
+ /* 100Mbps, IDIV enabled, divide by 1 (25 MHz) */
+ rc = sja1105_cgu_idiv_config(priv, port, true, 1);
+ break;
+ case SJA1105_SPEED_10MBPS:
+ /* 10Mbps, IDIV enabled, divide by 10 (2.5 MHz) */
+ rc = sja1105_cgu_idiv_config(priv, port, true, 10);
+ break;
+ case SJA1105_SPEED_AUTO:
+ /* Skip CGU configuration if there is no speed available
+ * (e.g. link is not established yet)
+ */
+ dev_dbg(dev, "Speed not available, skipping CGU config\n");
+ return 0;
+ default:
+ rc = -EINVAL;
+ }
+
+ if (rc < 0) {
+ dev_err(dev, "Failed to configure idiv\n");
+ return rc;
+ }
+ rc = sja1105_cgu_rgmii_tx_clk_config(priv, port, speed);
+ if (rc < 0) {
+ dev_err(dev, "Failed to configure RGMII Tx clock\n");
+ return rc;
+ }
+ rc = sja1105_rgmii_cfg_pad_tx_config(priv, port);
+ if (rc < 0) {
+ dev_err(dev, "Failed to configure Tx pad registers\n");
+ return rc;
+ }
+ return 0;
+}
+
+static int sja1105_cgu_rmii_ref_clk_config(struct sja1105_private *priv,
+ int port)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct sja1105_cgu_mii_ctrl ref_clk;
+ u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
+ const int clk_sources[] = {
+ CLKSRC_MII0_TX_CLK,
+ CLKSRC_MII1_TX_CLK,
+ CLKSRC_MII2_TX_CLK,
+ CLKSRC_MII3_TX_CLK,
+ CLKSRC_MII4_TX_CLK,
+ };
+
+ /* Payload for packed_buf */
+ ref_clk.clksrc = clk_sources[port];
+ ref_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
+ ref_clk.pd = 0; /* Power Down off => enabled */
+ sja1105_cgu_mii_control_packing(packed_buf, &ref_clk, PACK);
+
+ return sja1105_spi_send_packed_buf(priv, SPI_WRITE,
+ regs->rmii_ref_clk[port],
+ packed_buf, SJA1105_SIZE_CGU_CMD);
+}
+
+static int
+sja1105_cgu_rmii_ext_tx_clk_config(struct sja1105_private *priv, int port)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct sja1105_cgu_mii_ctrl ext_tx_clk;
+ u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
+
+ /* Payload for packed_buf */
+ ext_tx_clk.clksrc = CLKSRC_PLL1;
+ ext_tx_clk.autoblock = 1; /* Autoblock clk while changing clksrc */
+ ext_tx_clk.pd = 0; /* Power Down off => enabled */
+ sja1105_cgu_mii_control_packing(packed_buf, &ext_tx_clk, PACK);
+
+ return sja1105_spi_send_packed_buf(priv, SPI_WRITE,
+ regs->rmii_ext_tx_clk[port],
+ packed_buf, SJA1105_SIZE_CGU_CMD);
+}
+
+static int sja1105_cgu_rmii_pll_config(struct sja1105_private *priv)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
+ struct sja1105_cgu_pll_ctrl pll = {0};
+ struct device *dev = priv->ds->dev;
+ int rc;
+
+ /* PLL1 must be enabled and output 50 Mhz.
+ * This is done by writing first 0x0A010941 to
+ * the PLL_1_C register and then deasserting
+ * power down (PD) 0x0A010940.
+ */
+
+ /* Step 1: PLL1 setup for 50Mhz */
+ pll.pllclksrc = 0xA;
+ pll.msel = 0x1;
+ pll.autoblock = 0x1;
+ pll.psel = 0x1;
+ pll.direct = 0x0;
+ pll.fbsel = 0x1;
+ pll.bypass = 0x0;
+ pll.pd = 0x1;
+
+ sja1105_cgu_pll_control_packing(packed_buf, &pll, PACK);
+ rc = sja1105_spi_send_packed_buf(priv, SPI_WRITE, regs->rmii_pll1,
+ packed_buf, SJA1105_SIZE_CGU_CMD);
+ if (rc < 0) {
+ dev_err(dev, "failed to configure PLL1 for 50MHz\n");
+ return rc;
+ }
+
+ /* Step 2: Enable PLL1 */
+ pll.pd = 0x0;
+
+ sja1105_cgu_pll_control_packing(packed_buf, &pll, PACK);
+ rc = sja1105_spi_send_packed_buf(priv, SPI_WRITE, regs->rmii_pll1,
+ packed_buf, SJA1105_SIZE_CGU_CMD);
+ if (rc < 0) {
+ dev_err(dev, "failed to enable PLL1\n");
+ return rc;
+ }
+ return rc;
+}
+
+static int sja1105_rmii_clocking_setup(struct sja1105_private *priv, int port,
+ sja1105_mii_role_t role)
+{
+ struct device *dev = priv->ds->dev;
+ int rc;
+
+ dev_dbg(dev, "Configuring RMII-%s clocking\n",
+ (role == XMII_MAC) ? "MAC" : "PHY");
+ /* AH1601.pdf chapter 2.5.1. Sources */
+ if (role == XMII_MAC) {
+ /* Configure and enable PLL1 for 50Mhz output */
+ rc = sja1105_cgu_rmii_pll_config(priv);
+ if (rc < 0)
+ return rc;
+ }
+ /* Disable IDIV for this port */
+ rc = sja1105_cgu_idiv_config(priv, port, false, 1);
+ if (rc < 0)
+ return rc;
+ /* Source to sink mappings */
+ rc = sja1105_cgu_rmii_ref_clk_config(priv, port);
+ if (rc < 0)
+ return rc;
+ if (role == XMII_MAC) {
+ rc = sja1105_cgu_rmii_ext_tx_clk_config(priv, port);
+ if (rc < 0)
+ return rc;
+ }
+ return 0;
+}
+
+int sja1105_clocking_setup_port(struct sja1105_private *priv, int port)
+{
+ struct sja1105_xmii_params_entry *mii;
+ struct device *dev = priv->ds->dev;
+ sja1105_phy_interface_t phy_mode;
+ sja1105_mii_role_t role;
+ int rc;
+
+ mii = priv->static_config.tables[BLK_IDX_XMII_PARAMS].entries;
+
+ /* RGMII etc */
+ phy_mode = mii->xmii_mode[port];
+ /* MAC or PHY, for applicable types (not RGMII) */
+ role = mii->phy_mac[port];
+
+ switch (phy_mode) {
+ case XMII_MODE_MII:
+ rc = sja1105_mii_clocking_setup(priv, port, role);
+ break;
+ case XMII_MODE_RMII:
+ rc = sja1105_rmii_clocking_setup(priv, port, role);
+ break;
+ case XMII_MODE_RGMII:
+ rc = sja1105_rgmii_clocking_setup(priv, port);
+ break;
+ default:
+ dev_err(dev, "Invalid interface mode specified: %d\n",
+ phy_mode);
+ return -EINVAL;
+ }
+ if (rc)
+ dev_err(dev, "Clocking setup for port %d failed: %d\n",
+ port, rc);
+ return rc;
+}
+
+int sja1105_clocking_setup(struct sja1105_private *priv)
+{
+ int port, rc;
+
+ for (port = 0; port < SJA1105_NUM_PORTS; port++) {
+ rc = sja1105_clocking_setup_port(priv, port);
+ if (rc < 0)
+ return rc;
+ }
+ return 0;
+}
diff --git a/drivers/net/dsa/sja1105/sja1105_dynamic_config.c b/drivers/net/dsa/sja1105/sja1105_dynamic_config.c
new file mode 100644
index 000000000000..d8f145488063
--- /dev/null
+++ b/drivers/net/dsa/sja1105/sja1105_dynamic_config.c
@@ -0,0 +1,489 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018-2019, Vladimir Oltean <olteanv@xxxxxxxxx>
+ */
+#include "sja1105.h"
+
+#define SJA1105_SIZE_DYN_CMD 4
+
+#define SJA1105ET_SIZE_MAC_CONFIG_DYN_ENTRY \
+ SJA1105_SIZE_DYN_CMD
+
+#define SJA1105ET_SIZE_L2_LOOKUP_DYN_CMD \
+ (SJA1105_SIZE_DYN_CMD + SJA1105ET_SIZE_L2_LOOKUP_ENTRY)
+
+#define SJA1105PQRS_SIZE_L2_LOOKUP_DYN_CMD \
+ (SJA1105_SIZE_DYN_CMD + SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY)
+
+#define SJA1105_SIZE_VLAN_LOOKUP_DYN_CMD \
+ (SJA1105_SIZE_DYN_CMD + 4 + SJA1105_SIZE_VLAN_LOOKUP_ENTRY)
+
+#define SJA1105_SIZE_L2_FORWARDING_DYN_CMD \
+ (SJA1105_SIZE_DYN_CMD + SJA1105_SIZE_L2_FORWARDING_ENTRY)
+
+#define SJA1105ET_SIZE_MAC_CONFIG_DYN_CMD \
+ (SJA1105_SIZE_DYN_CMD + SJA1105ET_SIZE_MAC_CONFIG_DYN_ENTRY)
+
+#define SJA1105PQRS_SIZE_MAC_CONFIG_DYN_CMD \
+ (SJA1105_SIZE_DYN_CMD + SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY)
+
+#define SJA1105ET_SIZE_L2_LOOKUP_PARAMS_DYN_CMD \
+ SJA1105_SIZE_DYN_CMD
+
+#define SJA1105ET_SIZE_GENERAL_PARAMS_DYN_CMD \
+ SJA1105_SIZE_DYN_CMD
+
+#define SJA1105_MAX_DYN_CMD_SIZE \
+ SJA1105PQRS_SIZE_MAC_CONFIG_DYN_CMD
+
+static void
+sja1105pqrs_l2_lookup_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
+ enum packing_op op)
+{
+ u8 *p = buf + SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY;
+ const int size = SJA1105_SIZE_DYN_CMD;
+
+ sja1105_packing(p, &cmd->valid, 31, 31, size, op);
+ sja1105_packing(p, &cmd->rdwrset, 30, 30, size, op);
+ sja1105_packing(p, &cmd->errors, 29, 29, size, op);
+ sja1105_packing(p, &cmd->valident, 27, 27, size, op);
+ /* Hack - The hardware takes the 'index' field within
+ * struct sja1105_l2_lookup_entry as the index on which this command
+ * will operate. However it will ignore everything else, so 'index'
+ * is logically part of command but physically part of entry.
+ * Populate the 'index' entry field from within the command callback,
+ * such that our API doesn't need to ask for a full-blown entry
+ * structure when e.g. a delete is requested.
+ */
+ sja1105_packing(buf, &cmd->index, 29, 20,
+ SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY, op);
+ /* TODO hostcmd */
+}
+
+static void
+sja1105et_l2_lookup_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
+ enum packing_op op)
+{
+ u8 *p = buf + SJA1105ET_SIZE_L2_LOOKUP_ENTRY;
+ const int size = SJA1105_SIZE_DYN_CMD;
+
+ sja1105_packing(p, &cmd->valid, 31, 31, size, op);
+ sja1105_packing(p, &cmd->rdwrset, 30, 30, size, op);
+ sja1105_packing(p, &cmd->errors, 29, 29, size, op);
+ sja1105_packing(p, &cmd->valident, 27, 27, size, op);
+ /* Hack - see comments above. */
+ sja1105_packing(buf, &cmd->index, 29, 20,
+ SJA1105ET_SIZE_L2_LOOKUP_ENTRY, op);
+}
+
+static void
+sja1105et_mgmt_route_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
+ enum packing_op op)
+{
+ u8 *p = buf + SJA1105ET_SIZE_L2_LOOKUP_ENTRY;
+ u64 mgmtroute = 1;
+
+ sja1105et_l2_lookup_cmd_packing(buf, cmd, op);
+ if (op == PACK)
+ sja1105_pack(p, &mgmtroute, 26, 26, SJA1105_SIZE_DYN_CMD);
+}
+
+static size_t sja1105et_mgmt_route_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ struct sja1105_mgmt_entry *entry = entry_ptr;
+ const size_t size = SJA1105ET_SIZE_L2_LOOKUP_ENTRY;
+
+ /* UM10944: To specify if a PTP egress timestamp shall be captured on
+ * each port upon transmission of the frame, the LSB of VLANID in the
+ * ENTRY field provided by the host must be set.
+ * Bit 1 of VLANID then specifies the register where the timestamp for
+ * this port is stored in.
+ */
+ sja1105_packing(buf, &entry->tsreg, 85, 85, size, op);
+ sja1105_packing(buf, &entry->takets, 84, 84, size, op);
+ sja1105_packing(buf, &entry->macaddr, 83, 36, size, op);
+ sja1105_packing(buf, &entry->destports, 35, 31, size, op);
+ sja1105_packing(buf, &entry->enfport, 30, 30, size, op);
+ return size;
+}
+
+/* In E/T, entry is at addresses 0x27-0x28. There is a 4 byte gap at 0x29,
+ * and command is at 0x2a. Similarly in P/Q/R/S there is a 1 register gap
+ * between entry (0x2d, 0x2e) and command (0x30).
+ */
+static void
+sja1105_vlan_lookup_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
+ enum packing_op op)
+{
+ u8 *p = buf + SJA1105_SIZE_VLAN_LOOKUP_ENTRY + 4;
+ const int size = SJA1105_SIZE_DYN_CMD;
+
+ sja1105_packing(p, &cmd->valid, 31, 31, size, op);
+ sja1105_packing(p, &cmd->rdwrset, 30, 30, size, op);
+ sja1105_packing(p, &cmd->valident, 27, 27, size, op);
+ /* Hack - see comments above, applied for 'vlanid' field of
+ * struct sja1105_vlan_lookup_entry.
+ */
+ sja1105_packing(buf, &cmd->index, 38, 27,
+ SJA1105_SIZE_VLAN_LOOKUP_ENTRY, op);
+}
+
+static void
+sja1105_l2_forwarding_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
+ enum packing_op op)
+{
+ u8 *p = buf + SJA1105_SIZE_L2_FORWARDING_ENTRY;
+ const int size = SJA1105_SIZE_DYN_CMD;
+
+ sja1105_packing(p, &cmd->valid, 31, 31, size, op);
+ sja1105_packing(p, &cmd->errors, 30, 30, size, op);
+ sja1105_packing(p, &cmd->rdwrset, 29, 29, size, op);
+ sja1105_packing(p, &cmd->index, 4, 0, size, op);
+}
+
+static void
+sja1105et_mac_config_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
+ enum packing_op op)
+{
+ const int size = SJA1105_SIZE_DYN_CMD;
+ /* Yup, user manual definitions are reversed */
+ u8 *reg1 = buf + 4;
+
+ sja1105_packing(reg1, &cmd->valid, 31, 31, size, op);
+ sja1105_packing(reg1, &cmd->index, 26, 24, size, op);
+}
+
+static size_t sja1105et_mac_config_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const int size = SJA1105ET_SIZE_MAC_CONFIG_DYN_ENTRY;
+ struct sja1105_mac_config_entry *entry = entry_ptr;
+ /* Yup, user manual definitions are reversed */
+ u8 *reg1 = buf + 4;
+ u8 *reg2 = buf;
+
+ sja1105_packing(reg1, &entry->speed, 30, 29, size, op);
+ sja1105_packing(reg1, &entry->drpdtag, 23, 23, size, op);
+ sja1105_packing(reg1, &entry->drpuntag, 22, 22, size, op);
+ sja1105_packing(reg1, &entry->retag, 21, 21, size, op);
+ sja1105_packing(reg1, &entry->dyn_learn, 20, 20, size, op);
+ sja1105_packing(reg1, &entry->egress, 19, 19, size, op);
+ sja1105_packing(reg1, &entry->ingress, 18, 18, size, op);
+ sja1105_packing(reg1, &entry->ing_mirr, 17, 17, size, op);
+ sja1105_packing(reg1, &entry->egr_mirr, 16, 16, size, op);
+ sja1105_packing(reg1, &entry->vlanprio, 14, 12, size, op);
+ sja1105_packing(reg1, &entry->vlanid, 11, 0, size, op);
+ sja1105_packing(reg2, &entry->tp_delin, 31, 16, size, op);
+ sja1105_packing(reg2, &entry->tp_delout, 15, 0, size, op);
+ /* MAC configuration table entries which can't be reconfigured:
+ * top, base, enabled, ifg, maxage, drpnona664
+ */
+ /* Bogus return value, not used anywhere */
+ return 0;
+}
+
+static void
+sja1105pqrs_mac_config_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
+ enum packing_op op)
+{
+ const int size = SJA1105ET_SIZE_MAC_CONFIG_DYN_ENTRY;
+ u8 *p = buf + SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY;
+
+ sja1105_packing(p, &cmd->valid, 31, 31, size, op);
+ sja1105_packing(p, &cmd->errors, 30, 30, size, op);
+ sja1105_packing(p, &cmd->rdwrset, 29, 29, size, op);
+ sja1105_packing(p, &cmd->index, 2, 0, size, op);
+}
+
+static void
+sja1105et_l2_lookup_params_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
+ enum packing_op op)
+{
+ sja1105_packing(buf, &cmd->valid, 31, 31,
+ SJA1105ET_SIZE_L2_LOOKUP_PARAMS_DYN_CMD, op);
+}
+
+static size_t
+sja1105et_l2_lookup_params_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ struct sja1105_l2_lookup_params_entry *entry = entry_ptr;
+
+ sja1105_packing(buf, &entry->poly, 7, 0,
+ SJA1105ET_SIZE_L2_LOOKUP_PARAMS_DYN_CMD, op);
+ /* Bogus return value, not used anywhere */
+ return 0;
+}
+
+static void
+sja1105et_general_params_cmd_packing(void *buf, struct sja1105_dyn_cmd *cmd,
+ enum packing_op op)
+{
+ const int size = SJA1105ET_SIZE_GENERAL_PARAMS_DYN_CMD;
+
+ sja1105_packing(buf, &cmd->valid, 31, 31, size, op);
+ sja1105_packing(buf, &cmd->errors, 30, 30, size, op);
+}
+
+static size_t
+sja1105et_general_params_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ struct sja1105_general_params_entry *entry = entry_ptr;
+ const int size = SJA1105ET_SIZE_GENERAL_PARAMS_DYN_CMD;
+
+ sja1105_packing(buf, &entry->mirr_port, 2, 0, size, op);
+ /* Bogus return value, not used anywhere */
+ return 0;
+}
+
+#define OP_READ BIT(0)
+#define OP_WRITE BIT(1)
+#define OP_DEL BIT(2)
+
+/* SJA1105E/T: First generation */
+struct sja1105_dynamic_table_ops sja1105et_dyn_ops[BLK_IDX_MAX_DYN] = {
+ [BLK_IDX_L2_LOOKUP] = {
+ .entry_packing = sja1105et_l2_lookup_entry_packing,
+ .cmd_packing = sja1105et_l2_lookup_cmd_packing,
+ .access = (OP_READ | OP_WRITE | OP_DEL),
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
+ .packed_size = SJA1105ET_SIZE_L2_LOOKUP_DYN_CMD,
+ .addr = 0x20,
+ },
+ [BLK_IDX_MGMT_ROUTE] = {
+ .entry_packing = sja1105et_mgmt_route_entry_packing,
+ .cmd_packing = sja1105et_mgmt_route_cmd_packing,
+ .access = (OP_READ | OP_WRITE),
+ .max_entry_count = SJA1105_NUM_PORTS,
+ .packed_size = SJA1105ET_SIZE_L2_LOOKUP_DYN_CMD,
+ .addr = 0x20,
+ },
+ [BLK_IDX_L2_POLICING] = {0},
+ [BLK_IDX_VLAN_LOOKUP] = {
+ .entry_packing = sja1105_vlan_lookup_entry_packing,
+ .cmd_packing = sja1105_vlan_lookup_cmd_packing,
+ .access = (OP_WRITE | OP_DEL),
+ .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
+ .packed_size = SJA1105_SIZE_VLAN_LOOKUP_DYN_CMD,
+ .addr = 0x27,
+ },
+ [BLK_IDX_L2_FORWARDING] = {
+ .entry_packing = sja1105_l2_forwarding_entry_packing,
+ .cmd_packing = sja1105_l2_forwarding_cmd_packing,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
+ .access = OP_WRITE,
+ .packed_size = SJA1105_SIZE_L2_FORWARDING_DYN_CMD,
+ .addr = 0x24,
+ },
+ [BLK_IDX_MAC_CONFIG] = {
+ .entry_packing = sja1105et_mac_config_entry_packing,
+ .cmd_packing = sja1105et_mac_config_cmd_packing,
+ .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
+ .access = OP_WRITE,
+ .packed_size = SJA1105ET_SIZE_MAC_CONFIG_DYN_CMD,
+ .addr = 0x36,
+ },
+ [BLK_IDX_L2_LOOKUP_PARAMS] = {
+ .entry_packing = sja1105et_l2_lookup_params_entry_packing,
+ .cmd_packing = sja1105et_l2_lookup_params_cmd_packing,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
+ .access = OP_WRITE,
+ .packed_size = SJA1105ET_SIZE_L2_LOOKUP_PARAMS_DYN_CMD,
+ .addr = 0x38,
+ },
+ [BLK_IDX_L2_FORWARDING_PARAMS] = {0},
+ [BLK_IDX_GENERAL_PARAMS] = {
+ .entry_packing = sja1105et_general_params_entry_packing,
+ .cmd_packing = sja1105et_general_params_cmd_packing,
+ .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
+ .access = OP_WRITE,
+ .packed_size = SJA1105ET_SIZE_GENERAL_PARAMS_DYN_CMD,
+ .addr = 0x34,
+ },
+ [BLK_IDX_XMII_PARAMS] = {0},
+};
+
+/* SJA1105P/Q/R/S: Second generation: TODO */
+struct sja1105_dynamic_table_ops sja1105pqrs_dyn_ops[BLK_IDX_MAX_DYN] = {
+ [BLK_IDX_L2_LOOKUP] = {
+ .entry_packing = sja1105pqrs_l2_lookup_entry_packing,
+ .cmd_packing = sja1105pqrs_l2_lookup_cmd_packing,
+ .access = (OP_READ | OP_WRITE | OP_DEL),
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
+ .packed_size = SJA1105ET_SIZE_L2_LOOKUP_DYN_CMD,
+ .addr = 0x24,
+ },
+ [BLK_IDX_L2_POLICING] = {0},
+ [BLK_IDX_VLAN_LOOKUP] = {
+ .entry_packing = sja1105_vlan_lookup_entry_packing,
+ .cmd_packing = sja1105_vlan_lookup_cmd_packing,
+ .access = (OP_READ | OP_WRITE | OP_DEL),
+ .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
+ .packed_size = SJA1105_SIZE_VLAN_LOOKUP_DYN_CMD,
+ .addr = 0x2D,
+ },
+ [BLK_IDX_L2_FORWARDING] = {
+ .entry_packing = sja1105_l2_forwarding_entry_packing,
+ .cmd_packing = sja1105_l2_forwarding_cmd_packing,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
+ .access = OP_WRITE,
+ .packed_size = SJA1105_SIZE_L2_FORWARDING_DYN_CMD,
+ .addr = 0x2A,
+ },
+ [BLK_IDX_MAC_CONFIG] = {
+ .entry_packing = sja1105pqrs_mac_config_entry_packing,
+ .cmd_packing = sja1105pqrs_mac_config_cmd_packing,
+ .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
+ .access = (OP_READ | OP_WRITE),
+ .packed_size = SJA1105PQRS_SIZE_MAC_CONFIG_DYN_CMD,
+ .addr = 0x4B,
+ },
+ [BLK_IDX_L2_LOOKUP_PARAMS] = {
+ .entry_packing = sja1105et_l2_lookup_params_entry_packing,
+ .cmd_packing = sja1105et_l2_lookup_params_cmd_packing,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
+ .access = (OP_READ | OP_WRITE),
+ .packed_size = SJA1105ET_SIZE_L2_LOOKUP_PARAMS_DYN_CMD,
+ .addr = 0x38,
+ },
+ [BLK_IDX_L2_FORWARDING_PARAMS] = {0},
+ [BLK_IDX_GENERAL_PARAMS] = {
+ .entry_packing = sja1105et_general_params_entry_packing,
+ .cmd_packing = sja1105et_general_params_cmd_packing,
+ .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
+ .access = OP_WRITE,
+ .packed_size = SJA1105ET_SIZE_GENERAL_PARAMS_DYN_CMD,
+ .addr = 0x34,
+ },
+ [BLK_IDX_XMII_PARAMS] = {0},
+};
+
+int sja1105_dynamic_config_read(struct sja1105_private *priv,
+ enum sja1105_blk_idx blk_idx,
+ int index, void *entry)
+{
+ const struct sja1105_dynamic_table_ops *ops;
+ struct sja1105_dyn_cmd cmd = {0};
+ /* SPI payload buffer */
+ u8 packed_buf[SJA1105_MAX_DYN_CMD_SIZE] = {0};
+ int retries = 3;
+ int rc;
+
+ if (blk_idx >= BLK_IDX_MAX_DYN)
+ return -ERANGE;
+
+ ops = &priv->info->dyn_ops[blk_idx];
+
+ if (index >= ops->max_entry_count)
+ return -ERANGE;
+ if (!(ops->access & OP_READ))
+ return -EOPNOTSUPP;
+ if (ops->packed_size > SJA1105_MAX_DYN_CMD_SIZE)
+ return -ERANGE;
+ if (!ops->cmd_packing)
+ return -EOPNOTSUPP;
+ if (!ops->entry_packing)
+ return -EOPNOTSUPP;
+
+ cmd.valid = true; /* Trigger action on table entry */
+ cmd.rdwrset = SPI_READ; /* Action is read */
+ cmd.index = index;
+ ops->cmd_packing(packed_buf, &cmd, PACK);
+
+ /* Send SPI write operation: read config table entry */
+ rc = sja1105_spi_send_packed_buf(priv, SPI_WRITE, ops->addr,
+ packed_buf, ops->packed_size);
+ if (rc < 0)
+ return rc;
+
+ /* Loop until we have confirmation that hardware has finished
+ * processing the command and has cleared the VALID field
+ */
+ do {
+ memset(packed_buf, 0, ops->packed_size);
+
+ /* Retrieve the read operation's result */
+ rc = sja1105_spi_send_packed_buf(priv, SPI_READ, ops->addr,
+ packed_buf, ops->packed_size);
+ if (rc < 0)
+ return rc;
+
+ cmd = (struct sja1105_dyn_cmd) {0};
+ ops->cmd_packing(packed_buf, &cmd, UNPACK);
+ /* UM10944: [valident] will always be found cleared
+ * during a read access with MGMTROUTE set.
+ * So don't error out in that case.
+ */
+ if (!cmd.valident && blk_idx != BLK_IDX_MGMT_ROUTE)
+ return -EINVAL;
+ cpu_relax();
+ } while (cmd.valid && --retries);
+
+ if (cmd.valid)
+ return -ETIMEDOUT;
+
+ /* Don't dereference possibly NULL pointer - maybe caller
+ * only wanted to see whether the entry existed or not.
+ */
+ if (entry)
+ ops->entry_packing(packed_buf, entry, UNPACK);
+ return 0;
+}
+
+int sja1105_dynamic_config_write(struct sja1105_private *priv,
+ enum sja1105_blk_idx blk_idx,
+ int index, void *entry, bool keep)
+{
+ const struct sja1105_dynamic_table_ops *ops;
+ struct sja1105_dyn_cmd cmd = {0};
+ /* SPI payload buffer */
+ u8 packed_buf[SJA1105_MAX_DYN_CMD_SIZE] = {0};
+ int rc;
+
+ if (blk_idx >= BLK_IDX_MAX_DYN)
+ return -ERANGE;
+
+ ops = &priv->info->dyn_ops[blk_idx];
+
+ if (index >= ops->max_entry_count)
+ return -ERANGE;
+ if (!(ops->access & OP_WRITE))
+ return -EOPNOTSUPP;
+ if (!keep && !(ops->access & OP_DEL))
+ return -EOPNOTSUPP;
+ if (ops->packed_size > SJA1105_MAX_DYN_CMD_SIZE)
+ return -ERANGE;
+
+ cmd.valident = keep; /* If false, deletes entry */
+ cmd.valid = true; /* Trigger action on table entry */
+ cmd.rdwrset = SPI_WRITE; /* Action is write */
+ cmd.index = index;
+
+ if (!ops->cmd_packing)
+ return -EOPNOTSUPP;
+ ops->cmd_packing(packed_buf, &cmd, PACK);
+
+ if (!ops->entry_packing)
+ return -EOPNOTSUPP;
+ /* Don't dereference potentially NULL pointer if just
+ * deleting a table entry is what was requested. For cases
+ * where 'index' field is physically part of entry structure,
+ * and needed here, we deal with that in the cmd_packing callback.
+ */
+ if (keep)
+ ops->entry_packing(packed_buf, entry, PACK);
+
+ /* Send SPI write operation: read config table entry */
+ rc = sja1105_spi_send_packed_buf(priv, SPI_WRITE, ops->addr,
+ packed_buf, ops->packed_size);
+ if (rc < 0)
+ return rc;
+
+ cmd = (struct sja1105_dyn_cmd) {0};
+ ops->cmd_packing(packed_buf, &cmd, UNPACK);
+ if (cmd.errors)
+ return -EINVAL;
+
+ return 0;
+}
diff --git a/drivers/net/dsa/sja1105/sja1105_dynamic_config.h b/drivers/net/dsa/sja1105/sja1105_dynamic_config.h
new file mode 100644
index 000000000000..77be59546a55
--- /dev/null
+++ b/drivers/net/dsa/sja1105/sja1105_dynamic_config.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Copyright (c) 2019, Vladimir Oltean <olteanv@xxxxxxxxx>
+ */
+#ifndef _SJA1105_DYNAMIC_CONFIG_H
+#define _SJA1105_DYNAMIC_CONFIG_H
+
+#include "sja1105.h"
+#include <linux/packing.h>
+
+struct sja1105_dyn_cmd {
+ u64 valid;
+ u64 rdwrset;
+ u64 errors;
+ u64 valident;
+ u64 index;
+};
+
+struct sja1105_dynamic_table_ops {
+ /* This returns size_t just to keep same prototype as the
+ * static config ops, of which we are reusing some functions.
+ */
+ size_t (*entry_packing)(void *buf, void *entry_ptr, enum packing_op op);
+ void (*cmd_packing)(void *buf, struct sja1105_dyn_cmd *cmd,
+ enum packing_op op);
+ size_t max_entry_count;
+ size_t packed_size;
+ u64 addr;
+ u8 access;
+};
+
+struct sja1105_mgmt_entry {
+ u64 tsreg;
+ u64 takets;
+ u64 macaddr;
+ u64 destports;
+ u64 enfport;
+ u64 index;
+};
+
+extern struct sja1105_dynamic_table_ops sja1105et_dyn_ops[BLK_IDX_MAX_DYN];
+extern struct sja1105_dynamic_table_ops sja1105pqrs_dyn_ops[BLK_IDX_MAX_DYN];
+
+#endif
diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
new file mode 100644
index 000000000000..7d2ad2db0d88
--- /dev/null
+++ b/drivers/net/dsa/sja1105/sja1105_main.c
@@ -0,0 +1,928 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018, Sensor-Technik Wiedemann GmbH
+ * Copyright (c) 2018-2019, Vladimir Oltean <olteanv@xxxxxxxxx>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/spi/spi.h>
+#include <linux/errno.h>
+#include <linux/gpio/consumer.h>
+#include <linux/of.h>
+#include <linux/of_net.h>
+#include <linux/of_mdio.h>
+#include <linux/of_device.h>
+#include <linux/netdev_features.h>
+#include <linux/netdevice.h>
+#include <linux/if_bridge.h>
+#include <linux/if_ether.h>
+#include "sja1105.h"
+
+static void sja1105_hw_reset(struct gpio_desc *gpio, unsigned int pulse_len,
+ unsigned int startup_delay)
+{
+ gpiod_set_value_cansleep(gpio, 1);
+ /* Wait for minimum reset pulse length */
+ msleep(pulse_len);
+ gpiod_set_value_cansleep(gpio, 0);
+ /* Wait until chip is ready after reset */
+ msleep(startup_delay);
+}
+
+static void
+sja1105_port_allow_traffic(struct sja1105_l2_forwarding_entry *l2_fwd,
+ int from, int to, bool allow)
+{
+ if (allow) {
+ l2_fwd[from].bc_domain |= BIT(to);
+ l2_fwd[from].reach_port |= BIT(to);
+ l2_fwd[from].fl_domain |= BIT(to);
+ } else {
+ l2_fwd[from].bc_domain &= ~BIT(to);
+ l2_fwd[from].reach_port &= ~BIT(to);
+ l2_fwd[from].fl_domain &= ~BIT(to);
+ }
+}
+
+/* Structure used to temporarily transport device tree
+ * settings into sja1105_setup
+ */
+struct sja1105_dt_port {
+ phy_interface_t phy_mode;
+ sja1105_mii_role_t role;
+};
+
+static int sja1105_init_mac_settings(struct sja1105_private *priv)
+{
+ struct sja1105_mac_config_entry default_mac = {
+ /* Enable all 8 priority queues on egress.
+ * Every queue i holds top[i] - base[i] frames.
+ * Sum of top[i] - base[i] is 511 (max hardware limit).
+ */
+ .top = {0x3F, 0x7F, 0xBF, 0xFF, 0x13F, 0x17F, 0x1BF, 0x1FF},
+ .base = {0x0, 0x40, 0x80, 0xC0, 0x100, 0x140, 0x180, 0x1C0},
+ .enabled = {true, true, true, true, true, true, true, true},
+ /* Keep standard IFG of 12 bytes on egress. */
+ .ifg = 0,
+ /* Always put the MAC speed in automatic mode, where it can be
+ * retrieved from the PHY object through phylib and
+ * sja1105_adjust_port_config.
+ */
+ .speed = SJA1105_SPEED_AUTO,
+ /* No static correction for 1-step 1588 events */
+ .tp_delin = 0,
+ .tp_delout = 0,
+ /* Disable aging for critical TTEthernet traffic */
+ .maxage = 0xFF,
+ /* Internal VLAN (pvid) to apply to untagged ingress */
+ .vlanprio = 0,
+ .vlanid = 0,
+ .ing_mirr = false,
+ .egr_mirr = false,
+ /* Don't drop traffic with other EtherType than ETH_P_IP */
+ .drpnona664 = false,
+ /* Don't drop double-tagged traffic */
+ .drpdtag = false,
+ /* Don't drop untagged traffic */
+ .drpuntag = false,
+ /* Don't retag 802.1p (VID 0) traffic with the pvid */
+ .retag = false,
+ /* Enable learning and I/O on user ports by default. */
+ .dyn_learn = true,
+ .egress = false,
+ .ingress = false,
+ };
+ struct sja1105_mac_config_entry *mac;
+ struct sja1105_table *table;
+ int i;
+
+ table = &priv->static_config.tables[BLK_IDX_MAC_CONFIG];
+
+ /* Discard previous MAC Configuration Table */
+ if (table->entry_count) {
+ kfree(table->entries);
+ table->entry_count = 0;
+ }
+
+ table->entries = kcalloc(SJA1105_NUM_PORTS,
+ table->ops->unpacked_entry_size, GFP_KERNEL);
+ if (!table->entries)
+ return -ENOMEM;
+
+ /* Override table based on phylib DT bindings */
+ table->entry_count = SJA1105_NUM_PORTS;
+
+ mac = table->entries;
+
+ for (i = 0; i < SJA1105_NUM_PORTS; i++)
+ mac[i] = default_mac;
+
+ return 0;
+}
+
+static int sja1105_init_mii_settings(struct sja1105_private *priv,
+ struct sja1105_dt_port *ports)
+{
+ struct device *dev = &priv->spidev->dev;
+ struct sja1105_xmii_params_entry *mii;
+ struct sja1105_table *table;
+ int i;
+
+ table = &priv->static_config.tables[BLK_IDX_XMII_PARAMS];
+
+ /* Discard previous xMII Mode Parameters Table */
+ if (table->entry_count) {
+ kfree(table->entries);
+ table->entry_count = 0;
+ }
+
+ table->entries = kcalloc(SJA1105_MAX_XMII_PARAMS_COUNT,
+ table->ops->unpacked_entry_size, GFP_KERNEL);
+ if (!table->entries)
+ return -ENOMEM;
+
+ /* Override table based on phylib DT bindings */
+ table->entry_count = SJA1105_MAX_XMII_PARAMS_COUNT;
+
+ mii = table->entries;
+
+ for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+ switch (ports[i].phy_mode) {
+ case PHY_INTERFACE_MODE_MII:
+ mii->xmii_mode[i] = XMII_MODE_MII;
+ break;
+ case PHY_INTERFACE_MODE_RMII:
+ mii->xmii_mode[i] = XMII_MODE_RMII;
+ break;
+ case PHY_INTERFACE_MODE_RGMII:
+ case PHY_INTERFACE_MODE_RGMII_ID:
+ case PHY_INTERFACE_MODE_RGMII_RXID:
+ case PHY_INTERFACE_MODE_RGMII_TXID:
+ mii->xmii_mode[i] = XMII_MODE_RGMII;
+ break;
+ default:
+ dev_err(dev, "Unsupported PHY mode %s!\n",
+ phy_modes(ports[i].phy_mode));
+ }
+
+ mii->phy_mac[i] = ports[i].role;
+ }
+ return 0;
+}
+
+static int sja1105_init_static_fdb(struct sja1105_private *priv)
+{
+ struct sja1105_table *table;
+
+ table = &priv->static_config.tables[BLK_IDX_L2_LOOKUP];
+
+ if (table->entry_count) {
+ kfree(table->entries);
+ table->entry_count = 0;
+ }
+ return 0;
+}
+
+static int sja1105_init_l2_lookup_params(struct sja1105_private *priv)
+{
+ struct sja1105_table *table;
+ struct sja1105_l2_lookup_params_entry default_l2_lookup_params = {
+ /* TODO Learned FDB entries are never forgotten */
+ .maxage = 0,
+ /* All entries within a FDB bin are available for learning */
+ .dyn_tbsz = SJA1105ET_FDB_BIN_SIZE,
+ /* 2^8 + 2^5 + 2^3 + 2^2 + 2^1 + 1 in Koopman notation */
+ .poly = 0x97,
+ /* This selects between Independent VLAN Learning (IVL) and
+ * Shared VLAN Learning (SVL)
+ */
+ .shared_learn = false,
+ /* Don't discard management traffic based on ENFPORT -
+ * we don't perform SMAC port enforcement anyway, so
+ * what we are setting here doesn't matter.
+ */
+ .no_enf_hostprt = false,
+ /* Don't learn SMAC for mac_fltres1 and mac_fltres0.
+ * Maybe correlate with no_linklocal_learn from bridge driver?
+ */
+ .no_mgmt_learn = true,
+ };
+
+ table = &priv->static_config.tables[BLK_IDX_L2_LOOKUP_PARAMS];
+
+ if (table->entry_count) {
+ kfree(table->entries);
+ table->entry_count = 0;
+ }
+
+ table->entries = kcalloc(SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
+ table->ops->unpacked_entry_size, GFP_KERNEL);
+ if (!table->entries)
+ return -ENOMEM;
+
+ table->entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT;
+
+ /* This table only has a single entry */
+ ((struct sja1105_l2_lookup_params_entry *)table->entries)[0] =
+ default_l2_lookup_params;
+
+ return 0;
+}
+
+static int sja1105_init_static_vlan(struct sja1105_private *priv)
+{
+ struct sja1105_table *table;
+ struct sja1105_vlan_lookup_entry pvid = {
+ .ving_mirr = 0,
+ .vegr_mirr = 0,
+ .vmemb_port = 0,
+ .vlan_bc = 0,
+ .tag_port = 0,
+ .vlanid = 0,
+ };
+ int i;
+
+ table = &priv->static_config.tables[BLK_IDX_VLAN_LOOKUP];
+
+ /* The static VLAN table will only contain the initial pvid of 0.
+ */
+ if (table->entry_count) {
+ kfree(table->entries);
+ table->entry_count = 0;
+ }
+
+ table->entries = kcalloc(1, table->ops->unpacked_entry_size,
+ GFP_KERNEL);
+ if (!table->entries)
+ return -ENOMEM;
+
+ table->entry_count = 1;
+
+ /* VLAN ID 0: all DT-defined ports are members; no restrictions on
+ * forwarding; always transmit priority-tagged frames as untagged.
+ */
+ for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+ pvid.vmemb_port |= BIT(i);
+ pvid.vlan_bc |= BIT(i);
+ pvid.tag_port &= ~BIT(i);
+ }
+
+ ((struct sja1105_vlan_lookup_entry *)table->entries)[0] = pvid;
+ return 0;
+}
+
+static int sja1105_init_l2_forwarding(struct sja1105_private *priv)
+{
+ struct sja1105_l2_forwarding_entry *l2fwd;
+ struct sja1105_table *table;
+ int i, j;
+
+ table = &priv->static_config.tables[BLK_IDX_L2_FORWARDING];
+
+ if (table->entry_count) {
+ kfree(table->entries);
+ table->entry_count = 0;
+ }
+
+ table->entries = kcalloc(SJA1105_MAX_L2_FORWARDING_COUNT,
+ table->ops->unpacked_entry_size, GFP_KERNEL);
+ if (!table->entries)
+ return -ENOMEM;
+
+ table->entry_count = SJA1105_MAX_L2_FORWARDING_COUNT;
+
+ l2fwd = table->entries;
+
+ /* First 5 entries define the forwarding rules */
+ for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+ unsigned int upstream = dsa_upstream_port(priv->ds, i);
+
+ for (j = 0; j < SJA1105_NUM_TC; j++)
+ l2fwd[i].vlan_pmap[j] = j;
+
+ if (i == upstream)
+ continue;
+
+ sja1105_port_allow_traffic(l2fwd, i, upstream, true);
+ sja1105_port_allow_traffic(l2fwd, upstream, i, true);
+ }
+ /* Next 8 entries define VLAN PCP mapping from ingress to egress.
+ * Create a one-to-one mapping.
+ */
+ for (i = 0; i < SJA1105_NUM_TC; i++)
+ for (j = 0; j < SJA1105_NUM_PORTS; j++)
+ l2fwd[SJA1105_NUM_PORTS + i].vlan_pmap[j] = i;
+
+ return 0;
+}
+
+static int sja1105_init_l2_forwarding_params(struct sja1105_private *priv)
+{
+ struct sja1105_l2_forwarding_params_entry default_l2fwd_params = {
+ /* Disallow dynamic reconfiguration of vlan_pmap */
+ .max_dynp = 0,
+ /* Use a single memory partition for all ingress queues */
+ .part_spc = { SJA1105_MAX_FRAME_MEMORY, 0, 0, 0, 0, 0, 0, 0 },
+ };
+ struct sja1105_table *table;
+
+ table = &priv->static_config.tables[BLK_IDX_L2_FORWARDING_PARAMS];
+
+ if (table->entry_count) {
+ kfree(table->entries);
+ table->entry_count = 0;
+ }
+
+ table->entries = kcalloc(SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
+ table->ops->unpacked_entry_size, GFP_KERNEL);
+ if (!table->entries)
+ return -ENOMEM;
+
+ table->entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT;
+
+ /* This table only has a single entry */
+ ((struct sja1105_l2_forwarding_params_entry *)table->entries)[0] =
+ default_l2fwd_params;
+
+ return 0;
+}
+
+static int sja1105_init_general_params(struct sja1105_private *priv)
+{
+ struct sja1105_general_params_entry default_general_params = {
+ /* Disallow dynamic changing of the mirror port */
+ .mirr_ptacu = 0,
+ .switchid = priv->ds->index,
+ /* Priority queue for link-local frames trapped to CPU */
+ .hostprio = 0,
+ .mac_fltres1 = SJA1105_LINKLOCAL_FILTER_A,
+ .mac_flt1 = SJA1105_LINKLOCAL_FILTER_A_MASK,
+ .incl_srcpt1 = true,
+ .send_meta1 = false,
+ .mac_fltres0 = SJA1105_LINKLOCAL_FILTER_B,
+ .mac_flt0 = SJA1105_LINKLOCAL_FILTER_B_MASK,
+ .incl_srcpt0 = true,
+ .send_meta0 = false,
+ /* The destination for traffic matching mac_fltres1 and
+ * mac_fltres0 on all ports except host_port. Such traffic
+ * receieved on host_port itself would be dropped, except
+ * by installing a temporary 'management route'
+ */
+ .host_port = dsa_upstream_port(priv->ds, 0),
+ /* Same as host port */
+ .mirr_port = dsa_upstream_port(priv->ds, 0),
+ /* Link-local traffic received on casc_port will be forwarded
+ * to host_port without embedding the source port and device ID
+ * info in the destination MAC address (presumably because it
+ * is a cascaded port and a downstream SJA switch already did
+ * that). Default to an invalid port (to disable the feature)
+ * and overwrite this if we find any DSA (cascaded) ports.
+ */
+ .casc_port = SJA1105_NUM_PORTS,
+ /* No TTEthernet */
+ .vllupformat = 0,
+ .vlmarker = 0,
+ .vlmask = 0,
+ /* Only update correctionField for 1-step PTP (L2 transport) */
+ .ignore2stf = 0,
+ .tpid = ETH_P_8021Q,
+ .tpid2 = ETH_P_8021Q,
+ };
+ struct sja1105_table *table;
+ int i;
+
+ for (i = 0; i < SJA1105_NUM_PORTS; i++)
+ if (dsa_is_dsa_port(priv->ds, i))
+ default_general_params.casc_port = i;
+
+ table = &priv->static_config.tables[BLK_IDX_GENERAL_PARAMS];
+
+ if (table->entry_count) {
+ kfree(table->entries);
+ table->entry_count = 0;
+ }
+
+ table->entries = kcalloc(SJA1105_MAX_GENERAL_PARAMS_COUNT,
+ table->ops->unpacked_entry_size, GFP_KERNEL);
+ if (!table->entries)
+ return -ENOMEM;
+
+ table->entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT;
+
+ /* This table only has a single entry */
+ ((struct sja1105_general_params_entry *)table->entries)[0] =
+ default_general_params;
+
+ return 0;
+}
+
+#define SJA1105_RATE_MBPS(speed) (((speed) * 64000) / 1000)
+
+static inline void
+sja1105_setup_policer(struct sja1105_l2_policing_entry *policing,
+ int index)
+{
+ policing[index].sharindx = index;
+ policing[index].smax = 65535; /* Burst size in bytes */
+ policing[index].rate = SJA1105_RATE_MBPS(1000);
+ policing[index].maxlen = ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN;
+ policing[index].partition = 0;
+}
+
+static int sja1105_init_l2_policing(struct sja1105_private *priv)
+{
+ struct sja1105_l2_policing_entry *policing;
+ struct sja1105_table *table;
+ int i, j, k;
+
+ table = &priv->static_config.tables[BLK_IDX_L2_POLICING];
+
+ /* Discard previous L2 Policing Table */
+ if (table->entry_count) {
+ kfree(table->entries);
+ table->entry_count = 0;
+ }
+
+ table->entries = kcalloc(SJA1105_MAX_L2_POLICING_COUNT,
+ table->ops->unpacked_entry_size, GFP_KERNEL);
+ if (!table->entries)
+ return -ENOMEM;
+
+ table->entry_count = SJA1105_MAX_L2_POLICING_COUNT;
+
+ policing = table->entries;
+
+ /* k sweeps through all unicast policers (0-39).
+ * bcast sweeps through policers 40-44.
+ */
+ for (i = 0, k = 0; i < SJA1105_NUM_PORTS; i++) {
+ int bcast = (SJA1105_NUM_PORTS * SJA1105_NUM_TC) + i;
+
+ for (j = 0; j < SJA1105_NUM_TC; j++, k++)
+ sja1105_setup_policer(policing, k);
+
+ /* Set up this port's policer for broadcast traffic */
+ sja1105_setup_policer(policing, bcast);
+ }
+ return 0;
+}
+
+static int sja1105_static_config_load(struct sja1105_private *priv,
+ struct sja1105_dt_port *ports)
+{
+ int rc;
+
+ sja1105_static_config_free(&priv->static_config);
+ rc = sja1105_static_config_init(&priv->static_config,
+ priv->info->static_ops,
+ priv->info->device_id);
+ if (rc)
+ return rc;
+
+ /* Build static configuration */
+ rc = sja1105_init_mac_settings(priv);
+ if (rc < 0)
+ return rc;
+ rc = sja1105_init_mii_settings(priv, ports);
+ if (rc < 0)
+ return rc;
+ rc = sja1105_init_static_fdb(priv);
+ if (rc < 0)
+ return rc;
+ rc = sja1105_init_static_vlan(priv);
+ if (rc < 0)
+ return rc;
+ rc = sja1105_init_l2_lookup_params(priv);
+ if (rc < 0)
+ return rc;
+ rc = sja1105_init_l2_forwarding(priv);
+ if (rc < 0)
+ return rc;
+ rc = sja1105_init_l2_forwarding_params(priv);
+ if (rc < 0)
+ return rc;
+ rc = sja1105_init_l2_policing(priv);
+ if (rc < 0)
+ return rc;
+ rc = sja1105_init_general_params(priv);
+ if (rc < 0)
+ return rc;
+
+ /* Send initial configuration to hardware via SPI */
+ return sja1105_static_config_upload(priv);
+}
+
+static int sja1105_parse_ports_node(struct sja1105_private *priv,
+ struct sja1105_dt_port *ports,
+ struct device_node *ports_node)
+{
+ struct device *dev = &priv->spidev->dev;
+ struct device_node *child;
+
+ for_each_child_of_node(ports_node, child) {
+ struct device_node *phy_node;
+ int phy_mode;
+ u32 index;
+
+ /* Get switch port number from DT */
+ if (of_property_read_u32(child, "reg", &index) < 0) {
+ dev_err(dev, "Port number not defined in device tree "
+ "(property \"reg\")\n");
+ return -ENODEV;
+ }
+
+ /* Get PHY mode from DT */
+ phy_mode = of_get_phy_mode(child);
+ if (phy_mode < 0) {
+ dev_err(dev, "Failed to read phy-mode or "
+ "phy-interface-type property for port %d\n",
+ index);
+ return -ENODEV;
+ }
+ ports[index].phy_mode = phy_mode;
+
+ phy_node = of_parse_phandle(child, "phy-handle", 0);
+ if (!phy_node) {
+ if (!of_phy_is_fixed_link(child)) {
+ dev_err(dev, "phy-handle or fixed-link "
+ "properties missing!\n");
+ return -ENODEV;
+ }
+ /* phy-handle is missing, but fixed-link isn't.
+ * So it's a fixed link. Default to PHY role.
+ */
+ ports[index].role = XMII_PHY;
+ } else {
+ /* phy-handle present => put port in MAC role */
+ ports[index].role = XMII_MAC;
+ of_node_put(phy_node);
+ }
+
+ /* The MAC/PHY role can be overridden with explicit bindings */
+ if (of_property_read_bool(child, "sja1105,role-mac"))
+ ports[index].role = XMII_MAC;
+ else if (of_property_read_bool(child, "sja1105,role-phy"))
+ ports[index].role = XMII_PHY;
+ }
+
+ return 0;
+}
+
+static int sja1105_parse_dt(struct sja1105_private *priv,
+ struct sja1105_dt_port *ports)
+{
+ struct device *dev = &priv->spidev->dev;
+ struct device_node *switch_node = dev->of_node;
+ struct device_node *ports_node;
+ int rc;
+
+ ports_node = of_get_child_by_name(switch_node, "ports");
+ if (!ports_node) {
+ dev_err(dev, "Incorrect bindings: absent \"ports\" node\n");
+ return -ENODEV;
+ }
+
+ rc = sja1105_parse_ports_node(priv, ports, ports_node);
+ of_node_put(ports_node);
+
+ return rc;
+}
+
+/* Convert back and forth MAC speed from Mbps to SJA1105 encoding */
+static int sja1105_speed[] = {
+ [SJA1105_SPEED_AUTO] = 0,
+ [SJA1105_SPEED_10MBPS] = 10,
+ [SJA1105_SPEED_100MBPS] = 100,
+ [SJA1105_SPEED_1000MBPS] = 1000,
+};
+
+static sja1105_speed_t sja1105_get_speed_cfg(unsigned int speed_mbps)
+{
+ int i;
+
+ for (i = SJA1105_SPEED_AUTO; i <= SJA1105_SPEED_1000MBPS; i++)
+ if (sja1105_speed[i] == speed_mbps)
+ return i;
+ return -EINVAL;
+}
+
+/* Set link speed and enable/disable traffic I/O in the MAC configuration
+ * for a specific port.
+ *
+ * @speed_mbps: If 0, leave the speed unchanged, else adapt MAC to PHY speed.
+ * @enabled: Manage Rx and Tx settings for this port. Overrides the static
+ * configuration settings.
+ */
+static int sja1105_adjust_port_config(struct sja1105_private *priv, int port,
+ int speed_mbps, bool enabled)
+{
+ struct sja1105_xmii_params_entry *mii;
+ struct sja1105_mac_config_entry *mac;
+ struct device *dev = priv->ds->dev;
+ sja1105_phy_interface_t phy_mode;
+ sja1105_speed_t speed;
+ int rc;
+
+ mii = priv->static_config.tables[BLK_IDX_XMII_PARAMS].entries;
+ mac = priv->static_config.tables[BLK_IDX_MAC_CONFIG].entries;
+
+ speed = sja1105_get_speed_cfg(speed_mbps);
+ if (speed_mbps && speed < 0) {
+ dev_err(dev, "Invalid speed %iMbps\n", speed_mbps);
+ return -EINVAL;
+ }
+
+ /* If requested, overwrite SJA1105_SPEED_AUTO from the static MAC
+ * configuration table, since this will be used for the clocking setup,
+ * and we no longer need to store it in the static config (already told
+ * hardware we want auto during upload phase).
+ */
+ if (speed_mbps)
+ mac[port].speed = speed;
+ else
+ mac[port].speed = SJA1105_SPEED_AUTO;
+
+ /* On P/Q/R/S, one can read from the device via the MAC reconfiguration
+ * tables. On E/T, MAC reconfig tables are not readable, only writable.
+ * We have to *know* what the MAC looks like. For the sake of keeping
+ * the code common, we'll use the static configuration tables as a
+ * reasonable approximation for both E/T and P/Q/R/S.
+ */
+ mac[port].ingress = enabled;
+ mac[port].egress = enabled;
+
+ /* Write to the dynamic reconfiguration tables */
+ rc = sja1105_dynamic_config_write(priv, BLK_IDX_MAC_CONFIG,
+ port, &mac[port], true);
+ if (rc < 0) {
+ dev_err(dev, "Failed to write MAC config: %d\n", rc);
+ return rc;
+ }
+
+ /* Reconfigure the PLLs for the RGMII interfaces (required 125 MHz at
+ * gigabit, 25 MHz at 100 Mbps and 2.5 MHz at 10 Mbps). For MII and
+ * RMII no change of the clock setup is required. Actually, changing
+ * the clock setup does interrupt the clock signal for a certain time
+ * which causes trouble for all PHYs relying on this signal.
+ */
+ if (!enabled)
+ return 0;
+
+ phy_mode = mii->xmii_mode[port];
+ if (phy_mode != XMII_MODE_RGMII)
+ return 0;
+
+ return sja1105_clocking_setup_port(priv, port);
+}
+
+static void sja1105_adjust_link(struct dsa_switch *ds, int port,
+ struct phy_device *phydev)
+{
+ struct sja1105_private *priv = ds->priv;
+
+ if (!phydev->link)
+ sja1105_adjust_port_config(priv, port, 0, false);
+ else
+ sja1105_adjust_port_config(priv, port, phydev->speed, true);
+}
+
+static int sja1105_bridge_member(struct dsa_switch *ds, int port,
+ struct net_device *br, bool member)
+{
+ struct sja1105_l2_forwarding_entry *l2_fwd;
+ struct sja1105_private *priv = ds->priv;
+ int i, rc;
+
+ l2_fwd = priv->static_config.tables[BLK_IDX_L2_FORWARDING].entries;
+
+ for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+ /* Add this port to the forwarding matrix of the
+ * other ports in the same bridge, and viceversa.
+ */
+ if (!dsa_is_user_port(ds, i))
+ continue;
+ /* For the ports already under the bridge, only one thing needs
+ * to be done, and that is to add this port to their
+ * reachability domain. So we can perform the SPI write for
+ * them immediately. However, for this port itself (the one
+ * that is new to the bridge), we need to add all other ports
+ * to its reachability domain. So we do that incrementally in
+ * this loop, and perform the SPI write only at the end, once
+ * the domain contains all other bridge ports.
+ */
+ if (i == port)
+ continue;
+ if (dsa_to_port(ds, i)->bridge_dev != br)
+ continue;
+ sja1105_port_allow_traffic(l2_fwd, i, port, member);
+ sja1105_port_allow_traffic(l2_fwd, port, i, member);
+
+ rc = sja1105_dynamic_config_write(priv, BLK_IDX_L2_FORWARDING,
+ i, &l2_fwd[i], true);
+ if (rc < 0)
+ return rc;
+ }
+
+ return sja1105_dynamic_config_write(priv, BLK_IDX_L2_FORWARDING,
+ port, &l2_fwd[port], true);
+}
+
+static int sja1105_bridge_join(struct dsa_switch *ds, int port,
+ struct net_device *br)
+{
+ return sja1105_bridge_member(ds, port, br, true);
+}
+
+static void sja1105_bridge_leave(struct dsa_switch *ds, int port,
+ struct net_device *br)
+{
+ sja1105_bridge_member(ds, port, br, false);
+}
+
+static enum dsa_tag_protocol
+sja1105_get_tag_protocol(struct dsa_switch *ds, int port)
+{
+ return DSA_TAG_PROTO_NONE;
+}
+
+/* The programming model for the SJA1105 switch is "all-at-once" via static
+ * configuration tables. Some of these can be dynamically modified at runtime,
+ * but not the xMII mode parameters table.
+ * Furthermode, some PHYs may not have crystals for generating their clocks
+ * (e.g. RMII). Instead, their 50MHz clock is supplied via the SJA1105 port's
+ * ref_clk pin. So port clocking needs to be initialized early, before
+ * connecting to PHYs is attempted, otherwise they won't respond through MDIO.
+ * Setting correct PHY link speed does not matter now.
+ * But dsa_slave_phy_setup is called later than sja1105_setup, so the PHY
+ * bindings are not yet parsed by DSA core. We need to parse early so that we
+ * can populate the xMII mode parameters table.
+ */
+static int sja1105_setup(struct dsa_switch *ds)
+{
+ struct sja1105_dt_port ports[SJA1105_NUM_PORTS];
+ struct sja1105_private *priv = ds->priv;
+ int rc;
+
+ rc = sja1105_parse_dt(priv, ports);
+ if (rc < 0) {
+ dev_err(ds->dev, "Failed to parse DT: %d\n", rc);
+ return rc;
+ }
+ /* Create and send configuration down to device */
+ rc = sja1105_static_config_load(priv, ports);
+ if (rc < 0) {
+ dev_err(ds->dev, "Failed to load static config: %d\n", rc);
+ return rc;
+ }
+ /* Configure the CGU (PHY link modes and speeds) */
+ rc = sja1105_clocking_setup(priv);
+ if (rc < 0) {
+ dev_err(ds->dev, "Failed to configure MII clocking: %d\n", rc);
+ return rc;
+ }
+
+ return 0;
+}
+
+static const struct dsa_switch_ops sja1105_switch_ops = {
+ .get_tag_protocol = sja1105_get_tag_protocol,
+ .setup = sja1105_setup,
+ .adjust_link = sja1105_adjust_link,
+ .port_bridge_join = sja1105_bridge_join,
+ .port_bridge_leave = sja1105_bridge_leave,
+};
+
+static int sja1105_check_device_id(struct sja1105_private *priv)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ u8 prod_id[SJA1105_SIZE_DEVICE_ID] = {0};
+ struct device *dev = &priv->spidev->dev;
+ u64 device_id;
+ u64 part_no;
+ int rc;
+
+ rc = sja1105_spi_send_int(priv, SPI_READ, regs->device_id,
+ &device_id, SJA1105_SIZE_DEVICE_ID);
+ if (rc < 0)
+ return rc;
+
+ if (device_id != priv->info->device_id) {
+ dev_err(dev, "Expected device ID 0x%llx but read 0x%llx\n",
+ priv->info->device_id, device_id);
+ return -ENODEV;
+ }
+
+ rc = sja1105_spi_send_packed_buf(priv, SPI_READ, regs->prod_id,
+ prod_id, SJA1105_SIZE_DEVICE_ID);
+ if (rc < 0)
+ return rc;
+
+ sja1105_unpack(prod_id, &part_no, 19, 4, SJA1105_SIZE_DEVICE_ID);
+
+ if (part_no != priv->info->part_no) {
+ dev_err(dev, "Expected part number 0x%llx but read 0x%llx\n",
+ priv->info->part_no, part_no);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int sja1105_probe(struct spi_device *spi)
+{
+ struct device *dev = &spi->dev;
+ struct sja1105_private *priv;
+ struct dsa_switch *ds;
+ int rc;
+
+ if (!dev->of_node) {
+ dev_err(dev, "No DTS bindings for SJA1105 driver\n");
+ return -EINVAL;
+ }
+
+ priv = devm_kzalloc(dev, sizeof(struct sja1105_private), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ /* Configure the optional reset pin and bring up switch */
+ priv->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(priv->reset_gpio))
+ dev_dbg(dev, "reset-gpios not defined, ignoring\n");
+ else
+ sja1105_hw_reset(priv->reset_gpio, 1, 1);
+
+ /* Populate our driver private structure (priv) based on
+ * the device tree node that was probed (spi)
+ */
+ priv->spidev = spi;
+ spi_set_drvdata(spi, priv);
+
+ /* Configure the SPI bus */
+ spi->bits_per_word = 8;
+ rc = spi_setup(spi);
+ if (rc < 0) {
+ dev_err(dev, "Could not init SPI\n");
+ return rc;
+ }
+
+ priv->info = of_device_get_match_data(dev);
+
+ /* Detect hardware device */
+ rc = sja1105_check_device_id(priv);
+ if (rc < 0) {
+ dev_err(dev, "Device ID check failed: %d\n", rc);
+ return rc;
+ }
+
+ dev_info(dev, "Probed switch chip: %s\n", priv->info->name);
+
+ ds = dsa_switch_alloc(dev, SJA1105_NUM_PORTS);
+ if (!ds)
+ return -ENOMEM;
+
+ ds->ops = &sja1105_switch_ops;
+ ds->priv = priv;
+ priv->ds = ds;
+
+ return dsa_register_switch(priv->ds);
+}
+
+static int sja1105_remove(struct spi_device *spi)
+{
+ struct sja1105_private *priv = spi_get_drvdata(spi);
+
+ dsa_unregister_switch(priv->ds);
+ sja1105_static_config_free(&priv->static_config);
+ return 0;
+}
+
+static const struct of_device_id sja1105_dt_ids[] = {
+ { .compatible = "nxp,sja1105e", .data = &sja1105e_info },
+ { .compatible = "nxp,sja1105t", .data = &sja1105t_info },
+ { .compatible = "nxp,sja1105p", .data = &sja1105p_info },
+ { .compatible = "nxp,sja1105q", .data = &sja1105q_info },
+ { .compatible = "nxp,sja1105r", .data = &sja1105r_info },
+ { .compatible = "nxp,sja1105s", .data = &sja1105s_info },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, sja1105_dt_ids);
+
+static struct spi_driver sja1105_driver = {
+ .driver = {
+ .name = "sja1105",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(sja1105_dt_ids),
+ },
+ .probe = sja1105_probe,
+ .remove = sja1105_remove,
+};
+
+module_spi_driver(sja1105_driver);
+
+MODULE_AUTHOR("Vladimir Oltean <olteanv@xxxxxxxxx>");
+MODULE_AUTHOR("Georg Waibel <georg.waibel@xxxxxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("SJA1105 Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/dsa/sja1105/sja1105_spi.c b/drivers/net/dsa/sja1105/sja1105_spi.c
new file mode 100644
index 000000000000..07890bbf40f8
--- /dev/null
+++ b/drivers/net/dsa/sja1105/sja1105_spi.c
@@ -0,0 +1,553 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/* Copyright (c) 2016-2018, NXP Semiconductors
+ * Copyright (c) 2018, Sensor-Technik Wiedemann GmbH
+ * Copyright (c) 2018-2019, Vladimir Oltean <olteanv@xxxxxxxxx>
+ */
+#include <linux/spi/spi.h>
+#include <linux/packing.h>
+#include "sja1105.h"
+
+#define SJA1105_SIZE_RESET_CMD 4
+#define SJA1105_SIZE_SPI_MSG_HEADER 4
+#define SJA1105_SIZE_SPI_MSG_MAXLEN (64 * 4)
+#define SJA1105_SIZE_SPI_TRANSFER_MAX \
+ (SJA1105_SIZE_SPI_MSG_HEADER + SJA1105_SIZE_SPI_MSG_MAXLEN)
+
+static int sja1105_spi_transfer(const struct sja1105_private *priv,
+ const void *tx, void *rx, int size)
+{
+ struct spi_device *spi = priv->spidev;
+ struct spi_transfer transfer = {
+ .tx_buf = tx,
+ .rx_buf = rx,
+ .len = size,
+ };
+ struct spi_message msg;
+ int rc;
+
+ if (size > SJA1105_SIZE_SPI_TRANSFER_MAX) {
+ dev_err(&spi->dev, "SPI message (%d) longer than max of %d\n",
+ size, SJA1105_SIZE_SPI_TRANSFER_MAX);
+ return -EMSGSIZE;
+ }
+
+ spi_message_init(&msg);
+ spi_message_add_tail(&transfer, &msg);
+
+ rc = spi_sync(spi, &msg);
+ if (rc < 0) {
+ dev_err(&spi->dev, "SPI transfer failed: %d\n", rc);
+ return rc;
+ }
+
+ return rc;
+}
+
+static void
+sja1105_spi_message_pack(void *buf, const struct sja1105_spi_message *msg)
+{
+ const int size = SJA1105_SIZE_SPI_MSG_HEADER;
+
+ memset(buf, 0, size);
+
+ sja1105_pack(buf, &msg->access, 31, 31, size);
+ sja1105_pack(buf, &msg->read_count, 30, 25, size);
+ sja1105_pack(buf, &msg->address, 24, 4, size);
+}
+
+/* If @rw is:
+ * - SPI_WRITE: creates and sends an SPI write message at absolute
+ * address reg_addr, taking size_bytes from *packed_buf
+ * - SPI_READ: creates and sends an SPI read message from absolute
+ * address reg_addr, writing size_bytes into *packed_buf
+ *
+ * This function should only be called if it is priorly known that
+ * @size_bytes is smaller than SIZE_SPI_MSG_MAXLEN. Larger packed buffers
+ * are chunked in smaller pieces by sja1105_spi_send_long_packed_buf below.
+ */
+int sja1105_spi_send_packed_buf(const struct sja1105_private *priv,
+ sja1105_spi_rw_mode_t rw, u64 reg_addr,
+ void *packed_buf, size_t size_bytes)
+{
+ u8 tx_buf[SJA1105_SIZE_SPI_TRANSFER_MAX] = {0};
+ u8 rx_buf[SJA1105_SIZE_SPI_TRANSFER_MAX] = {0};
+ const int msg_len = size_bytes + SJA1105_SIZE_SPI_MSG_HEADER;
+ struct sja1105_spi_message msg = {0};
+ int rc;
+
+ if (msg_len > SJA1105_SIZE_SPI_TRANSFER_MAX)
+ return -ERANGE;
+
+ msg.access = rw;
+ msg.address = reg_addr;
+ if (rw == SPI_READ)
+ msg.read_count = size_bytes / 4;
+
+ sja1105_spi_message_pack(tx_buf, &msg);
+
+ if (rw == SPI_WRITE)
+ memcpy(tx_buf + SJA1105_SIZE_SPI_MSG_HEADER,
+ packed_buf, size_bytes);
+
+ rc = sja1105_spi_transfer(priv, tx_buf, rx_buf, msg_len);
+ if (rc < 0)
+ return rc;
+
+ if (rw == SPI_READ)
+ memcpy(packed_buf, rx_buf + SJA1105_SIZE_SPI_MSG_HEADER,
+ size_bytes);
+
+ return 0;
+}
+
+/* If @rw is:
+ * - SPI_WRITE: creates and sends an SPI write message at absolute
+ * address reg_addr, taking size_bytes from *packed_buf
+ * - SPI_READ: creates and sends an SPI read message from absolute
+ * address reg_addr, writing size_bytes into *packed_buf
+ *
+ * The u64 *value is unpacked, meaning that it's stored in the native
+ * CPU endianness and directly usable by software running on the core.
+ *
+ * This is a wrapper around sja1105_spi_send_packed_buf().
+ */
+int sja1105_spi_send_int(const struct sja1105_private *priv,
+ sja1105_spi_rw_mode_t rw, u64 reg_addr,
+ u64 *value, u64 size_bytes)
+{
+ u8 packed_buf[SJA1105_SIZE_SPI_MSG_MAXLEN];
+ int rc;
+
+ if (size_bytes > SJA1105_SIZE_SPI_MSG_MAXLEN)
+ return -ERANGE;
+
+ if (rw == SPI_WRITE)
+ sja1105_pack(packed_buf, value, 8 * size_bytes - 1, 0,
+ size_bytes);
+
+ rc = sja1105_spi_send_packed_buf(priv, rw, reg_addr, packed_buf,
+ size_bytes);
+
+ if (rw == SPI_READ)
+ sja1105_unpack(packed_buf, value, 8 * size_bytes - 1, 0,
+ size_bytes);
+
+ return rc;
+}
+
+/* Should be used if a @packed_buf larger than SJA1105_SIZE_SPI_MSG_MAXLEN
+ * must be sent/received. Splitting the buffer into chunks and assembling
+ * those into SPI messages is done automatically by this function.
+ */
+int sja1105_spi_send_long_packed_buf(const struct sja1105_private *priv,
+ sja1105_spi_rw_mode_t rw, u64 base_addr,
+ void *packed_buf, u64 buf_len)
+{
+ struct chunk {
+ void *buf_ptr;
+ int len;
+ u64 spi_address;
+ } chunk;
+ int distance_to_end;
+ int rc;
+
+ /* Initialize chunk */
+ chunk.buf_ptr = packed_buf;
+ chunk.spi_address = base_addr;
+ chunk.len = min_t(int, buf_len, SJA1105_SIZE_SPI_MSG_MAXLEN);
+
+ while (chunk.len) {
+ rc = sja1105_spi_send_packed_buf(priv, rw, chunk.spi_address,
+ chunk.buf_ptr, chunk.len);
+ if (rc < 0)
+ return rc;
+
+ chunk.buf_ptr += chunk.len;
+ chunk.spi_address += chunk.len / 4;
+ distance_to_end = (uintptr_t)(packed_buf + buf_len -
+ chunk.buf_ptr);
+ chunk.len = min(distance_to_end, SJA1105_SIZE_SPI_MSG_MAXLEN);
+ }
+
+ return 0;
+}
+
+/* Back-ported structure from UM11040 Table 112.
+ * Reset control register (addr. 100440h)
+ * In the SJA1105 E/T, only warm_rst and cold_rst are
+ * supported (exposed in UM10944 as rst_ctrl), but the bit
+ * offsets of warm_rst and cold_rst are actually reversed.
+ */
+struct sja1105_reset_cmd {
+ u64 switch_rst;
+ u64 cfg_rst;
+ u64 car_rst;
+ u64 otp_rst;
+ u64 warm_rst;
+ u64 cold_rst;
+ u64 por_rst;
+};
+
+static void
+sja1105et_reset_cmd_pack(void *buf, const struct sja1105_reset_cmd *reset)
+{
+ const int size = SJA1105_SIZE_RESET_CMD;
+
+ memset(buf, 0, size);
+
+ sja1105_pack(buf, &reset->cold_rst, 3, 3, size);
+ sja1105_pack(buf, &reset->warm_rst, 2, 2, size);
+}
+
+static void
+sja1105pqrs_reset_cmd_pack(void *buf, const struct sja1105_reset_cmd *reset)
+{
+ const int size = SJA1105_SIZE_RESET_CMD;
+
+ memset(buf, 0, size);
+
+ sja1105_pack(buf, &reset->switch_rst, 8, 8, size);
+ sja1105_pack(buf, &reset->cfg_rst, 7, 7, size);
+ sja1105_pack(buf, &reset->car_rst, 5, 5, size);
+ sja1105_pack(buf, &reset->otp_rst, 4, 4, size);
+ sja1105_pack(buf, &reset->warm_rst, 3, 3, size);
+ sja1105_pack(buf, &reset->cold_rst, 2, 2, size);
+ sja1105_pack(buf, &reset->por_rst, 1, 1, size);
+}
+
+static int sja1105et_reset_cmd(const void *ctx, const void *data)
+{
+ const struct sja1105_private *priv = ctx;
+ const struct sja1105_reset_cmd *reset = data;
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct device *dev = priv->ds->dev;
+ u8 packed_buf[SJA1105_SIZE_RESET_CMD];
+
+ if (reset->switch_rst ||
+ reset->cfg_rst ||
+ reset->car_rst ||
+ reset->otp_rst ||
+ reset->por_rst) {
+ dev_err(dev, "Only warm and cold reset is supported "
+ "for SJA1105 E/T!\n");
+ return -EINVAL;
+ }
+
+ if (reset->warm_rst)
+ dev_dbg(dev, "Warm reset requested\n");
+ if (reset->cold_rst)
+ dev_dbg(dev, "Cold reset requested\n");
+
+ sja1105et_reset_cmd_pack(packed_buf, reset);
+
+ return sja1105_spi_send_packed_buf(priv, SPI_WRITE, regs->rgu,
+ packed_buf, SJA1105_SIZE_RESET_CMD);
+}
+
+static int sja1105pqrs_reset_cmd(const void *ctx, const void *data)
+{
+ const struct sja1105_private *priv = ctx;
+ const struct sja1105_reset_cmd *reset = data;
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct device *dev = priv->ds->dev;
+ u8 packed_buf[SJA1105_SIZE_RESET_CMD];
+
+ if (reset->switch_rst)
+ dev_dbg(dev, "Main reset for all functional modules requested\n");
+ if (reset->cfg_rst)
+ dev_dbg(dev, "Chip configuration reset requested\n");
+ if (reset->car_rst)
+ dev_dbg(dev, "Clock and reset control logic reset requested\n");
+ if (reset->otp_rst)
+ dev_dbg(dev, "OTP read cycle for reading product "
+ "config settings requested\n");
+ if (reset->warm_rst)
+ dev_dbg(dev, "Warm reset requested\n");
+ if (reset->cold_rst)
+ dev_dbg(dev, "Cold reset requested\n");
+ if (reset->por_rst)
+ dev_dbg(dev, "Power-on reset requested\n");
+
+ sja1105pqrs_reset_cmd_pack(packed_buf, reset);
+
+ return sja1105_spi_send_packed_buf(priv, SPI_WRITE, regs->rgu,
+ packed_buf, SJA1105_SIZE_RESET_CMD);
+}
+
+static int sja1105_cold_reset(const struct sja1105_private *priv)
+{
+ struct sja1105_reset_cmd reset = {0};
+
+ reset.cold_rst = 1;
+ return priv->info->reset_cmd(priv, &reset);
+}
+
+struct sja1105_status {
+ u64 configs;
+ u64 crcchkl;
+ u64 ids;
+ u64 crcchkg;
+};
+
+/* This is not reading the entire General Status area, which is also
+ * divergent between E/T and P/Q/R/S, but only the relevant bits for
+ * ensuring that the static config upload procedure was successful.
+ */
+static void sja1105_status_unpack(void *buf, struct sja1105_status *status)
+{
+ /* So that addition translates to 4 bytes */
+ u32 *p = buf;
+
+ /* device_id is missing from the buffer, but we don't
+ * want to diverge from the manual definition of the
+ * register addresses, so we'll back off one step with
+ * the register pointer, and never access p[0].
+ */
+ p--;
+ sja1105_unpack(p + 0x1, &status->configs, 31, 31, 4);
+ sja1105_unpack(p + 0x1, &status->crcchkl, 30, 30, 4);
+ sja1105_unpack(p + 0x1, &status->ids, 29, 29, 4);
+ sja1105_unpack(p + 0x1, &status->crcchkg, 28, 28, 4);
+}
+
+static int sja1105_status_get(struct sja1105_private *priv,
+ struct sja1105_status *status)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ u8 packed_buf[4];
+ int rc;
+
+ rc = sja1105_spi_send_packed_buf(priv, SPI_READ,
+ regs->status,
+ packed_buf, 4);
+ if (rc < 0)
+ return rc;
+
+ sja1105_status_unpack(packed_buf, status);
+
+ return 0;
+}
+
+/* Not const because unpacking priv->static_config into buffers and preparing
+ * for upload requires the recalculation of table CRCs and updating the
+ * structures with these.
+ */
+static int
+static_config_buf_prepare_for_upload(struct sja1105_private *priv,
+ void *config_buf, int buf_len)
+{
+ struct sja1105_static_config *config = &priv->static_config;
+ struct sja1105_table_header final_header;
+ sja1105_config_valid_t valid;
+ char *final_header_ptr;
+ int crc_len;
+
+ valid = sja1105_static_config_check_valid(config);
+ if (valid != SJA1105_CONFIG_OK) {
+ dev_err(&priv->spidev->dev,
+ sja1105_static_config_error_msg[valid]);
+ return -EINVAL;
+ }
+
+ /* Write Device ID and config tables to config_buf */
+ sja1105_static_config_pack(config_buf, config);
+ /* Recalculate CRC of the last header (right now 0xDEADBEEF).
+ * Don't include the CRC field itself.
+ */
+ crc_len = buf_len - 4;
+ /* Read the whole table header */
+ final_header_ptr = config_buf + buf_len - SJA1105_SIZE_TABLE_HEADER;
+ sja1105_table_header_packing(final_header_ptr, &final_header, UNPACK);
+ /* Modify */
+ final_header.crc = sja1105_crc32(config_buf, crc_len);
+ /* Rewrite */
+ sja1105_table_header_packing(final_header_ptr, &final_header, PACK);
+
+ return 0;
+}
+
+#define RETRIES 10
+
+int sja1105_static_config_upload(struct sja1105_private *priv)
+{
+ struct sja1105_static_config *config = &priv->static_config;
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct device *dev = &priv->spidev->dev;
+ struct sja1105_status status;
+ int rc, retries = RETRIES;
+ u8 *config_buf;
+ int buf_len;
+
+ buf_len = sja1105_static_config_get_length(config);
+ config_buf = kcalloc(buf_len, sizeof(char), GFP_KERNEL);
+ if (!config_buf)
+ return -ENOMEM;
+
+ rc = static_config_buf_prepare_for_upload(priv, config_buf, buf_len);
+ if (rc < 0) {
+ dev_err(dev, "Invalid config, cannot upload\n");
+ return -EINVAL;
+ }
+ do {
+ /* Put the SJA1105 in programming mode */
+ rc = sja1105_cold_reset(priv);
+ if (rc < 0) {
+ dev_err(dev, "Failed to reset switch, retrying...\n");
+ continue;
+ }
+ /* Wait for the switch to come out of reset */
+ usleep_range(1000, 5000);
+ /* Upload the static config to the device */
+ rc = sja1105_spi_send_long_packed_buf(priv, SPI_WRITE,
+ regs->config,
+ config_buf, buf_len);
+ if (rc < 0) {
+ dev_err(dev, "Failed to upload config, retrying...\n");
+ continue;
+ }
+ /* Check that SJA1105 responded well to the config upload */
+ rc = sja1105_status_get(priv, &status);
+ if (rc < 0)
+ continue;
+
+ if (status.ids == 1) {
+ dev_err(dev, "Mismatch between hardware and static config "
+ "device id. Wrote 0x%llx, wants 0x%llx\n",
+ config->device_id, priv->info->device_id);
+ continue;
+ }
+ if (status.crcchkl == 1) {
+ dev_err(dev, "Switch reported invalid local CRC on "
+ "the uploaded config, retrying...\n");
+ continue;
+ }
+ if (status.crcchkg == 1) {
+ dev_err(dev, "Switch reported invalid global CRC on "
+ "the uploaded config, retrying...\n");
+ continue;
+ }
+ if (status.configs == 0) {
+ dev_err(dev, "Switch reported that configuration is "
+ "invalid, retrying...\n");
+ continue;
+ }
+ } while (--retries && (status.crcchkl == 1 || status.crcchkg == 1 ||
+ status.configs == 0 || status.ids == 1));
+
+ if (!retries) {
+ rc = -EIO;
+ dev_err(dev, "Failed to upload config to device, giving up\n");
+ goto out;
+ } else if (retries != RETRIES - 1) {
+ dev_info(dev, "Succeeded after %d tried\n", RETRIES - retries);
+ }
+
+ dev_info(dev, "Reset switch and programmed static config\n");
+out:
+ kfree(config_buf);
+ return rc;
+}
+
+struct sja1105_regs sja1105et_regs = {
+ .device_id = 0x0,
+ .prod_id = 0x100BC3,
+ .status = 0x1,
+ .config = 0x020000,
+ .rgu = 0x100440,
+ .pad_mii_tx = {0x100800, 0x100802, 0x100804, 0x100806, 0x100808},
+ .rmii_pll1 = 0x10000A,
+ .cgu_idiv = {0x10000B, 0x10000C, 0x10000D, 0x10000E, 0x10000F},
+ /* UM10944.pdf, Table 86, ACU Register overview */
+ .rgmii_pad_mii_tx = {0x100800, 0x100802, 0x100804, 0x100806, 0x100808},
+ .mac = {0x200, 0x202, 0x204, 0x206, 0x208},
+ .mac_hl1 = {0x400, 0x410, 0x420, 0x430, 0x440},
+ .mac_hl2 = {0x600, 0x610, 0x620, 0x630, 0x640},
+ /* UM10944.pdf, Table 78, CGU Register overview */
+ .mii_tx_clk = {0x100013, 0x10001A, 0x100021, 0x100028, 0x10002F},
+ .mii_rx_clk = {0x100014, 0x10001B, 0x100022, 0x100029, 0x100030},
+ .mii_ext_tx_clk = {0x100018, 0x10001F, 0x100026, 0x10002D, 0x100034},
+ .mii_ext_rx_clk = {0x100019, 0x100020, 0x100027, 0x10002E, 0x100035},
+ .rgmii_tx_clk = {0x100016, 0x10001D, 0x100024, 0x10002B, 0x100032},
+ .rmii_ref_clk = {0x100015, 0x10001C, 0x100023, 0x10002A, 0x100031},
+ .rmii_ext_tx_clk = {0x100018, 0x10001F, 0x100026, 0x10002D, 0x100034},
+};
+
+struct sja1105_regs sja1105pqrs_regs = {
+ .device_id = 0x0,
+ .prod_id = 0x100BC3,
+ .status = 0x1,
+ .config = 0x020000,
+ .rgu = 0x100440,
+ .pad_mii_tx = {0x100800, 0x100802, 0x100804, 0x100806, 0x100808},
+ .rmii_pll1 = 0x10000A,
+ .cgu_idiv = {0x10000B, 0x10000C, 0x10000D, 0x10000E, 0x10000F},
+ /* UM10944.pdf, Table 86, ACU Register overview */
+ .rgmii_pad_mii_tx = {0x100800, 0x100802, 0x100804, 0x100806, 0x100808},
+ .mac = {0x200, 0x202, 0x204, 0x206, 0x208},
+ .mac_hl1 = {0x400, 0x410, 0x420, 0x430, 0x440},
+ .mac_hl2 = {0x600, 0x610, 0x620, 0x630, 0x640},
+ /* UM11040.pdf, Table 114 */
+ .mii_tx_clk = {0x100013, 0x100019, 0x10001F, 0x100025, 0x10002B},
+ .mii_rx_clk = {0x100014, 0x10001A, 0x100020, 0x100026, 0x10002C},
+ .mii_ext_tx_clk = {0x100017, 0x10001D, 0x100023, 0x100029, 0x10002F},
+ .mii_ext_rx_clk = {0x100018, 0x10001E, 0x100024, 0x10002A, 0x100030},
+ .rgmii_tx_clk = {0x100016, 0x10001C, 0x100022, 0x100028, 0x10002E},
+ .rmii_ref_clk = {0x100015, 0x10001B, 0x100021, 0x100027, 0x10002D},
+ .rmii_ext_tx_clk = {0x100017, 0x10001D, 0x100023, 0x100029, 0x10002F},
+ .qlevel = {0x604, 0x614, 0x624, 0x634, 0x644},
+};
+
+struct sja1105_info sja1105e_info = {
+ .device_id = SJA1105E_DEVICE_ID,
+ .part_no = SJA1105ET_PART_NO,
+ .static_ops = sja1105e_table_ops,
+ .dyn_ops = sja1105et_dyn_ops,
+ .reset_cmd = sja1105et_reset_cmd,
+ .regs = &sja1105et_regs,
+ .name = "SJA1105E",
+};
+struct sja1105_info sja1105t_info = {
+ .device_id = SJA1105T_DEVICE_ID,
+ .part_no = SJA1105ET_PART_NO,
+ .static_ops = sja1105t_table_ops,
+ .dyn_ops = sja1105et_dyn_ops,
+ .reset_cmd = sja1105et_reset_cmd,
+ .regs = &sja1105et_regs,
+ .name = "SJA1105T",
+};
+struct sja1105_info sja1105p_info = {
+ .device_id = SJA1105PR_DEVICE_ID,
+ .part_no = SJA1105P_PART_NO,
+ .static_ops = sja1105p_table_ops,
+ .dyn_ops = sja1105pqrs_dyn_ops,
+ .reset_cmd = sja1105pqrs_reset_cmd,
+ .regs = &sja1105pqrs_regs,
+ .name = "SJA1105P",
+};
+struct sja1105_info sja1105q_info = {
+ .device_id = SJA1105QS_DEVICE_ID,
+ .part_no = SJA1105Q_PART_NO,
+ .static_ops = sja1105q_table_ops,
+ .dyn_ops = sja1105pqrs_dyn_ops,
+ .reset_cmd = sja1105pqrs_reset_cmd,
+ .regs = &sja1105pqrs_regs,
+ .name = "SJA1105Q",
+};
+struct sja1105_info sja1105r_info = {
+ .device_id = SJA1105PR_DEVICE_ID,
+ .part_no = SJA1105R_PART_NO,
+ .static_ops = sja1105r_table_ops,
+ .dyn_ops = sja1105pqrs_dyn_ops,
+ .reset_cmd = sja1105pqrs_reset_cmd,
+ .regs = &sja1105pqrs_regs,
+ .name = "SJA1105R",
+};
+struct sja1105_info sja1105s_info = {
+ .device_id = SJA1105QS_DEVICE_ID,
+ .part_no = SJA1105S_PART_NO,
+ .static_ops = sja1105s_table_ops,
+ .dyn_ops = sja1105pqrs_dyn_ops,
+ .regs = &sja1105pqrs_regs,
+ .reset_cmd = sja1105pqrs_reset_cmd,
+ .name = "SJA1105S",
+};
diff --git a/drivers/net/dsa/sja1105/sja1105_static_config.c b/drivers/net/dsa/sja1105/sja1105_static_config.c
new file mode 100644
index 000000000000..84ee623c6336
--- /dev/null
+++ b/drivers/net/dsa/sja1105/sja1105_static_config.c
@@ -0,0 +1,949 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/* Copyright (c) 2016-2018, NXP Semiconductors
+ * Copyright (c) 2018-2019, Vladimir Oltean <olteanv@xxxxxxxxx>
+ */
+#include "sja1105_static_config.h"
+#include <linux/crc32.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+
+/* Convenience wrappers over the generic packing functions. These take into
+ * account the SJA1105 memory layout quirks and provide some level of
+ * programmer protection against incorrect API use. The errors are not expected
+ * to occur durring runtime, therefore printing and swallowing them here is
+ * appropriate instead of clutterring up higher-level code.
+ */
+void sja1105_pack(void *buf, const u64 *val, int start, int end, size_t len)
+{
+ int rc = packing(buf, (u64 *)val, start, end, len,
+ PACK, QUIRK_LSW32_IS_FIRST);
+
+ if (likely(!rc))
+ return;
+
+ if (rc == -EINVAL) {
+ pr_err("Start bit (%d) expected to be larger than end (%d)\n",
+ start, end);
+ } else if (rc == -ERANGE) {
+ if ((start - end + 1) > 64)
+ pr_err("Field %d-%d too large for 64 bits!\n",
+ start, end);
+ else
+ pr_err("Cannot store %llx inside bits %d-%d (would truncate)\n",
+ *val, start, end);
+ }
+ dump_stack();
+}
+
+void sja1105_unpack(const void *buf, u64 *val, int start, int end, size_t len)
+{
+ int rc = packing((void *)buf, val, start, end, len,
+ UNPACK, QUIRK_LSW32_IS_FIRST);
+
+ if (likely(!rc))
+ return;
+
+ if (rc == -EINVAL)
+ pr_err("Start bit (%d) expected to be larger than end (%d)\n",
+ start, end);
+ else if (rc == -ERANGE)
+ pr_err("Field %d-%d too large for 64 bits!\n",
+ start, end);
+ dump_stack();
+}
+
+void sja1105_packing(void *buf, u64 *val, int start, int end,
+ size_t len, enum packing_op op)
+{
+ int rc = packing(buf, val, start, end, len, op, QUIRK_LSW32_IS_FIRST);
+
+ if (likely(!rc))
+ return;
+
+ if (rc == -EINVAL) {
+ pr_err("Start bit (%d) expected to be larger than end (%d)\n",
+ start, end);
+ } else if (rc == -ERANGE) {
+ if ((start - end + 1) > 64)
+ pr_err("Field %d-%d too large for 64 bits!\n",
+ start, end);
+ else
+ pr_err("Cannot store %llx inside bits %d-%d (would truncate)\n",
+ *val, start, end);
+ }
+ dump_stack();
+}
+
+/* Little-endian Ethernet CRC32 of data packed as big-endian u32 words */
+u32 sja1105_crc32(const void *buf, size_t len)
+{
+ unsigned int i;
+ u64 word;
+ u32 crc;
+
+ /* seed */
+ crc = ~0;
+ for (i = 0; i < len; i += 4) {
+ sja1105_unpack((void *)buf + i, &word, 31, 0, 4);
+ crc = crc32_le(crc, (u8 *)&word, 4);
+ }
+ return ~crc;
+}
+
+static size_t sja1105et_general_params_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105ET_SIZE_GENERAL_PARAMS_ENTRY;
+ struct sja1105_general_params_entry *entry = entry_ptr;
+
+ sja1105_packing(buf, &entry->vllupformat, 319, 319, size, op);
+ sja1105_packing(buf, &entry->mirr_ptacu, 318, 318, size, op);
+ sja1105_packing(buf, &entry->switchid, 317, 315, size, op);
+ sja1105_packing(buf, &entry->hostprio, 314, 312, size, op);
+ sja1105_packing(buf, &entry->mac_fltres1, 311, 264, size, op);
+ sja1105_packing(buf, &entry->mac_fltres0, 263, 216, size, op);
+ sja1105_packing(buf, &entry->mac_flt1, 215, 168, size, op);
+ sja1105_packing(buf, &entry->mac_flt0, 167, 120, size, op);
+ sja1105_packing(buf, &entry->incl_srcpt1, 119, 119, size, op);
+ sja1105_packing(buf, &entry->incl_srcpt0, 118, 118, size, op);
+ sja1105_packing(buf, &entry->send_meta1, 117, 117, size, op);
+ sja1105_packing(buf, &entry->send_meta0, 116, 116, size, op);
+ sja1105_packing(buf, &entry->casc_port, 115, 113, size, op);
+ sja1105_packing(buf, &entry->host_port, 112, 110, size, op);
+ sja1105_packing(buf, &entry->mirr_port, 109, 107, size, op);
+ sja1105_packing(buf, &entry->vlmarker, 106, 75, size, op);
+ sja1105_packing(buf, &entry->vlmask, 74, 43, size, op);
+ sja1105_packing(buf, &entry->tpid, 42, 27, size, op);
+ sja1105_packing(buf, &entry->ignore2stf, 26, 26, size, op);
+ sja1105_packing(buf, &entry->tpid2, 25, 10, size, op);
+ return size;
+}
+
+static size_t
+sja1105pqrs_general_params_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY;
+ struct sja1105_general_params_entry *entry = entry_ptr;
+
+ sja1105_packing(buf, &entry->vllupformat, 351, 351, size, op);
+ sja1105_packing(buf, &entry->mirr_ptacu, 350, 350, size, op);
+ sja1105_packing(buf, &entry->switchid, 349, 347, size, op);
+ sja1105_packing(buf, &entry->hostprio, 346, 344, size, op);
+ sja1105_packing(buf, &entry->mac_fltres1, 343, 296, size, op);
+ sja1105_packing(buf, &entry->mac_fltres0, 295, 248, size, op);
+ sja1105_packing(buf, &entry->mac_flt1, 247, 200, size, op);
+ sja1105_packing(buf, &entry->mac_flt0, 199, 152, size, op);
+ sja1105_packing(buf, &entry->incl_srcpt1, 151, 151, size, op);
+ sja1105_packing(buf, &entry->incl_srcpt0, 150, 150, size, op);
+ sja1105_packing(buf, &entry->send_meta1, 149, 149, size, op);
+ sja1105_packing(buf, &entry->send_meta0, 148, 148, size, op);
+ sja1105_packing(buf, &entry->casc_port, 147, 145, size, op);
+ sja1105_packing(buf, &entry->host_port, 144, 142, size, op);
+ sja1105_packing(buf, &entry->mirr_port, 141, 139, size, op);
+ sja1105_packing(buf, &entry->vlmarker, 138, 107, size, op);
+ sja1105_packing(buf, &entry->vlmask, 106, 75, size, op);
+ sja1105_packing(buf, &entry->tpid, 74, 59, size, op);
+ sja1105_packing(buf, &entry->ignore2stf, 58, 58, size, op);
+ sja1105_packing(buf, &entry->tpid2, 57, 42, size, op);
+ sja1105_packing(buf, &entry->queue_ts, 41, 41, size, op);
+ sja1105_packing(buf, &entry->egrmirrvid, 40, 29, size, op);
+ sja1105_packing(buf, &entry->egrmirrpcp, 28, 26, size, op);
+ sja1105_packing(buf, &entry->egrmirrdei, 25, 25, size, op);
+ sja1105_packing(buf, &entry->replay_port, 24, 22, size, op);
+ return size;
+}
+
+static size_t
+sja1105_l2_forwarding_params_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY;
+ struct sja1105_l2_forwarding_params_entry *entry = entry_ptr;
+ int offset, i;
+
+ sja1105_packing(buf, &entry->max_dynp, 95, 93, size, op);
+ for (i = 0, offset = 13; i < 8; i++, offset += 10)
+ sja1105_packing(buf, &entry->part_spc[i],
+ offset + 9, offset + 0, size, op);
+ return size;
+}
+
+size_t sja1105_l2_forwarding_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105_SIZE_L2_FORWARDING_ENTRY;
+ struct sja1105_l2_forwarding_entry *entry = entry_ptr;
+ int offset, i;
+
+ sja1105_packing(buf, &entry->bc_domain, 63, 59, size, op);
+ sja1105_packing(buf, &entry->reach_port, 58, 54, size, op);
+ sja1105_packing(buf, &entry->fl_domain, 53, 49, size, op);
+ for (i = 0, offset = 25; i < 8; i++, offset += 3)
+ sja1105_packing(buf, &entry->vlan_pmap[i],
+ offset + 2, offset + 0, size, op);
+ return size;
+}
+
+static size_t
+sja1105et_l2_lookup_params_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105ET_SIZE_L2_LOOKUP_PARAMS_ENTRY;
+ struct sja1105_l2_lookup_params_entry *entry = entry_ptr;
+
+ sja1105_packing(buf, &entry->maxage, 31, 17, size, op);
+ sja1105_packing(buf, &entry->dyn_tbsz, 16, 14, size, op);
+ sja1105_packing(buf, &entry->poly, 13, 6, size, op);
+ sja1105_packing(buf, &entry->shared_learn, 5, 5, size, op);
+ sja1105_packing(buf, &entry->no_enf_hostprt, 4, 4, size, op);
+ sja1105_packing(buf, &entry->no_mgmt_learn, 3, 3, size, op);
+ return size;
+}
+
+static size_t
+sja1105pqrs_l2_lookup_params_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105PQRS_SIZE_L2_LOOKUP_PARAMS_ENTRY;
+ struct sja1105_l2_lookup_params_entry *entry = entry_ptr;
+
+ sja1105_packing(buf, &entry->maxage, 57, 43, size, op);
+ sja1105_packing(buf, &entry->shared_learn, 27, 27, size, op);
+ sja1105_packing(buf, &entry->no_enf_hostprt, 26, 26, size, op);
+ sja1105_packing(buf, &entry->no_mgmt_learn, 25, 25, size, op);
+ return size;
+}
+
+size_t sja1105et_l2_lookup_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105ET_SIZE_L2_LOOKUP_ENTRY;
+ struct sja1105_l2_lookup_entry *entry = entry_ptr;
+
+ sja1105_packing(buf, &entry->vlanid, 95, 84, size, op);
+ sja1105_packing(buf, &entry->macaddr, 83, 36, size, op);
+ sja1105_packing(buf, &entry->destports, 35, 31, size, op);
+ sja1105_packing(buf, &entry->enfport, 30, 30, size, op);
+ sja1105_packing(buf, &entry->index, 29, 20, size, op);
+ return size;
+}
+
+size_t sja1105pqrs_l2_lookup_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY;
+ struct sja1105_l2_lookup_entry *entry = entry_ptr;
+
+ /* These are static L2 lookup entries, so the structure
+ * should match UM11040 Table 16/17 definitions when
+ * LOCKEDS is 1.
+ */
+ sja1105_packing(buf, &entry->vlanid, 81, 70, size, op);
+ sja1105_packing(buf, &entry->macaddr, 69, 22, size, op);
+ sja1105_packing(buf, &entry->destports, 21, 17, size, op);
+ sja1105_packing(buf, &entry->enfport, 16, 16, size, op);
+ sja1105_packing(buf, &entry->index, 15, 6, size, op);
+ return size;
+}
+
+static size_t sja1105_l2_policing_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105_SIZE_L2_POLICING_ENTRY;
+ struct sja1105_l2_policing_entry *entry = entry_ptr;
+
+ sja1105_packing(buf, &entry->sharindx, 63, 58, size, op);
+ sja1105_packing(buf, &entry->smax, 57, 42, size, op);
+ sja1105_packing(buf, &entry->rate, 41, 26, size, op);
+ sja1105_packing(buf, &entry->maxlen, 25, 15, size, op);
+ sja1105_packing(buf, &entry->partition, 14, 12, size, op);
+ return size;
+}
+
+static size_t sja1105et_mac_config_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105ET_SIZE_MAC_CONFIG_ENTRY;
+ struct sja1105_mac_config_entry *entry = entry_ptr;
+ int offset, i;
+
+ for (i = 0, offset = 72; i < 8; i++, offset += 19) {
+ sja1105_packing(buf, &entry->enabled[i],
+ offset + 0, offset + 0, size, op);
+ sja1105_packing(buf, &entry->base[i],
+ offset + 9, offset + 1, size, op);
+ sja1105_packing(buf, &entry->top[i],
+ offset + 18, offset + 10, size, op);
+ }
+ sja1105_packing(buf, &entry->ifg, 71, 67, size, op);
+ sja1105_packing(buf, &entry->speed, 66, 65, size, op);
+ sja1105_packing(buf, &entry->tp_delin, 64, 49, size, op);
+ sja1105_packing(buf, &entry->tp_delout, 48, 33, size, op);
+ sja1105_packing(buf, &entry->maxage, 32, 25, size, op);
+ sja1105_packing(buf, &entry->vlanprio, 24, 22, size, op);
+ sja1105_packing(buf, &entry->vlanid, 21, 10, size, op);
+ sja1105_packing(buf, &entry->ing_mirr, 9, 9, size, op);
+ sja1105_packing(buf, &entry->egr_mirr, 8, 8, size, op);
+ sja1105_packing(buf, &entry->drpnona664, 7, 7, size, op);
+ sja1105_packing(buf, &entry->drpdtag, 6, 6, size, op);
+ sja1105_packing(buf, &entry->drpuntag, 5, 5, size, op);
+ sja1105_packing(buf, &entry->retag, 4, 4, size, op);
+ sja1105_packing(buf, &entry->dyn_learn, 3, 3, size, op);
+ sja1105_packing(buf, &entry->egress, 2, 2, size, op);
+ sja1105_packing(buf, &entry->ingress, 1, 1, size, op);
+ return size;
+}
+
+size_t sja1105pqrs_mac_config_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY;
+ struct sja1105_mac_config_entry *entry = entry_ptr;
+ int offset, i;
+
+ for (i = 0, offset = 104; i < 8; i++, offset += 19) {
+ sja1105_packing(buf, &entry->enabled[i],
+ offset + 0, offset + 0, size, op);
+ sja1105_packing(buf, &entry->base[i],
+ offset + 9, offset + 1, size, op);
+ sja1105_packing(buf, &entry->top[i],
+ offset + 18, offset + 10, size, op);
+ }
+ sja1105_packing(buf, &entry->ifg, 103, 99, size, op);
+ sja1105_packing(buf, &entry->speed, 98, 97, size, op);
+ sja1105_packing(buf, &entry->tp_delin, 96, 81, size, op);
+ sja1105_packing(buf, &entry->tp_delout, 80, 65, size, op);
+ sja1105_packing(buf, &entry->maxage, 64, 57, size, op);
+ sja1105_packing(buf, &entry->vlanprio, 56, 54, size, op);
+ sja1105_packing(buf, &entry->vlanid, 53, 42, size, op);
+ sja1105_packing(buf, &entry->ing_mirr, 41, 41, size, op);
+ sja1105_packing(buf, &entry->egr_mirr, 40, 40, size, op);
+ sja1105_packing(buf, &entry->drpnona664, 39, 39, size, op);
+ sja1105_packing(buf, &entry->drpdtag, 38, 38, size, op);
+ sja1105_packing(buf, &entry->drpuntag, 35, 35, size, op);
+ sja1105_packing(buf, &entry->retag, 34, 34, size, op);
+ sja1105_packing(buf, &entry->dyn_learn, 33, 33, size, op);
+ sja1105_packing(buf, &entry->egress, 32, 32, size, op);
+ sja1105_packing(buf, &entry->ingress, 31, 31, size, op);
+ return size;
+}
+
+size_t sja1105_vlan_lookup_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY;
+ struct sja1105_vlan_lookup_entry *entry = entry_ptr;
+
+ sja1105_packing(buf, &entry->ving_mirr, 63, 59, size, op);
+ sja1105_packing(buf, &entry->vegr_mirr, 58, 54, size, op);
+ sja1105_packing(buf, &entry->vmemb_port, 53, 49, size, op);
+ sja1105_packing(buf, &entry->vlan_bc, 48, 44, size, op);
+ sja1105_packing(buf, &entry->tag_port, 43, 39, size, op);
+ sja1105_packing(buf, &entry->vlanid, 38, 27, size, op);
+ return size;
+}
+
+static size_t sja1105_xmii_params_entry_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105_SIZE_XMII_PARAMS_ENTRY;
+ struct sja1105_xmii_params_entry *entry = entry_ptr;
+ int offset, i;
+
+ for (i = 0, offset = 17; i < 5; i++, offset += 3) {
+ sja1105_packing(buf, &entry->xmii_mode[i],
+ offset + 1, offset + 0, size, op);
+ sja1105_packing(buf, &entry->phy_mac[i],
+ offset + 2, offset + 2, size, op);
+ }
+ return size;
+}
+
+size_t sja1105_table_header_packing(void *buf, void *entry_ptr,
+ enum packing_op op)
+{
+ const size_t size = SJA1105_SIZE_TABLE_HEADER;
+ struct sja1105_table_header *entry = entry_ptr;
+
+ sja1105_packing(buf, &entry->block_id, 31, 24, size, op);
+ sja1105_packing(buf, &entry->len, 55, 32, size, op);
+ sja1105_packing(buf, &entry->crc, 95, 64, size, op);
+ return size;
+}
+
+/* WARNING: the *hdr pointer is really non-const, because it is
+ * modifying the CRC of the header for a 2-stage packing operation
+ */
+void
+sja1105_table_header_pack_with_crc(void *buf, struct sja1105_table_header *hdr)
+{
+ /* First pack the table as-is, then calculate the CRC, and
+ * finally put the proper CRC into the packed buffer
+ */
+ memset(buf, 0, SJA1105_SIZE_TABLE_HEADER);
+ sja1105_table_header_packing(buf, hdr, PACK);
+ hdr->crc = sja1105_crc32(buf, SJA1105_SIZE_TABLE_HEADER - 4);
+ sja1105_pack(buf + SJA1105_SIZE_TABLE_HEADER - 4, &hdr->crc, 31, 0, 4);
+}
+
+static void sja1105_table_write_crc(u8 *table_start, u8 *crc_ptr)
+{
+ u64 computed_crc;
+ int len_bytes;
+
+ len_bytes = (uintptr_t)(crc_ptr - table_start);
+ computed_crc = sja1105_crc32(table_start, len_bytes);
+ sja1105_pack(crc_ptr, &computed_crc, 31, 0, 4);
+}
+
+/* The block IDs that the switches support are unfortunately sparse, so keep a
+ * mapping table to "block indices" and translate back and forth so that we
+ * don't waste useless memory in struct sja1105_static_config.
+ * Also, since the block id comes from essentially untrusted input (unpacking
+ * the static config from userspace) it has to be sanitized (range-checked)
+ * before blindly indexing kernel memory with the blk_idx.
+ */
+static u64 blk_id_map[BLK_IDX_MAX] = {
+ [BLK_IDX_L2_LOOKUP] = BLKID_L2_LOOKUP,
+ [BLK_IDX_L2_POLICING] = BLKID_L2_POLICING,
+ [BLK_IDX_VLAN_LOOKUP] = BLKID_VLAN_LOOKUP,
+ [BLK_IDX_L2_FORWARDING] = BLKID_L2_FORWARDING,
+ [BLK_IDX_MAC_CONFIG] = BLKID_MAC_CONFIG,
+ [BLK_IDX_L2_LOOKUP_PARAMS] = BLKID_L2_LOOKUP_PARAMS,
+ [BLK_IDX_L2_FORWARDING_PARAMS] = BLKID_L2_FORWARDING_PARAMS,
+ [BLK_IDX_GENERAL_PARAMS] = BLKID_GENERAL_PARAMS,
+ [BLK_IDX_XMII_PARAMS] = BLKID_XMII_PARAMS,
+};
+
+const char *sja1105_static_config_error_msg[] = {
+ [SJA1105_CONFIG_OK] = "",
+ [SJA1105_MISSING_L2_POLICING_TABLE] =
+ "l2-policing-table needs to have at least one entry",
+ [SJA1105_MISSING_L2_FORWARDING_TABLE] =
+ "l2-forwarding-table is either missing or incomplete",
+ [SJA1105_MISSING_L2_FORWARDING_PARAMS_TABLE] =
+ "l2-forwarding-parameters-table is missing",
+ [SJA1105_MISSING_GENERAL_PARAMS_TABLE] =
+ "general-parameters-table is missing",
+ [SJA1105_MISSING_VLAN_TABLE] =
+ "vlan-lookup-table needs to have at least the default untagged VLAN",
+ [SJA1105_MISSING_XMII_TABLE] =
+ "xmii-table is missing",
+ [SJA1105_MISSING_MAC_TABLE] =
+ "mac-configuration-table needs to contain an entry for each port",
+ [SJA1105_OVERCOMMITTED_FRAME_MEMORY] =
+ "Not allowed to overcommit frame memory. L2 memory partitions "
+ "and VL memory partitions share the same space. The sum of all "
+ "16 memory partitions is not allowed to be larger than 929 "
+ "128-byte blocks (or 910 with retagging). Please adjust "
+ "l2-forwarding-parameters-table.part_spc and/or "
+ "vl-forwarding-parameters-table.partspc.",
+};
+
+sja1105_config_valid_t
+static_config_check_memory_size(const struct sja1105_table *tables)
+{
+ const struct sja1105_l2_forwarding_params_entry *l2_fwd_params;
+ int i, mem = 0;
+
+ l2_fwd_params = tables[BLK_IDX_L2_FORWARDING_PARAMS].entries;
+
+ for (i = 0; i < 8; i++)
+ mem += l2_fwd_params->part_spc[i];
+
+ if (mem > SJA1105_MAX_FRAME_MEMORY)
+ return SJA1105_OVERCOMMITTED_FRAME_MEMORY;
+
+ return SJA1105_CONFIG_OK;
+}
+
+sja1105_config_valid_t
+sja1105_static_config_check_valid(const struct sja1105_static_config *config)
+{
+ const struct sja1105_table *tables = config->tables;
+#define IS_FULL(blk_idx) \
+ (tables[blk_idx].entry_count == tables[blk_idx].ops->max_entry_count)
+
+ if (tables[BLK_IDX_L2_POLICING].entry_count == 0)
+ return SJA1105_MISSING_L2_POLICING_TABLE;
+
+ if (tables[BLK_IDX_VLAN_LOOKUP].entry_count == 0)
+ return SJA1105_MISSING_VLAN_TABLE;
+
+ if (!IS_FULL(BLK_IDX_L2_FORWARDING))
+ return SJA1105_MISSING_L2_FORWARDING_TABLE;
+
+ if (!IS_FULL(BLK_IDX_MAC_CONFIG))
+ return SJA1105_MISSING_MAC_TABLE;
+
+ if (!IS_FULL(BLK_IDX_L2_FORWARDING_PARAMS))
+ return SJA1105_MISSING_L2_FORWARDING_PARAMS_TABLE;
+
+ if (!IS_FULL(BLK_IDX_GENERAL_PARAMS))
+ return SJA1105_MISSING_GENERAL_PARAMS_TABLE;
+
+ if (!IS_FULL(BLK_IDX_XMII_PARAMS))
+ return SJA1105_MISSING_XMII_TABLE;
+
+ return static_config_check_memory_size(tables);
+#undef IS_FULL
+}
+
+void
+sja1105_static_config_pack(void *buf, struct sja1105_static_config *config)
+{
+ struct sja1105_table_header header = {0};
+ enum sja1105_blk_idx i;
+ char *p = buf;
+ int j;
+
+ sja1105_pack(p, &config->device_id, 31, 0, 4);
+ p += SJA1105_SIZE_DEVICE_ID;
+
+ for (i = 0; i < BLK_IDX_MAX; i++) {
+ const struct sja1105_table *table;
+ char *table_start;
+
+ table = &config->tables[i];
+ if (!table->entry_count)
+ continue;
+
+ header.block_id = blk_id_map[i];
+ header.len = table->entry_count *
+ table->ops->packed_entry_size / 4;
+ sja1105_table_header_pack_with_crc(p, &header);
+ p += SJA1105_SIZE_TABLE_HEADER;
+ table_start = p;
+ for (j = 0; j < table->entry_count; j++) {
+ u8 *entry_ptr = table->entries;
+
+ entry_ptr += j * table->ops->unpacked_entry_size;
+ memset(p, 0, table->ops->packed_entry_size);
+ table->ops->packing(p, entry_ptr, PACK);
+ p += table->ops->packed_entry_size;
+ }
+ sja1105_table_write_crc(table_start, p);
+ p += 4;
+ }
+ /* Final header:
+ * Block ID does not matter
+ * Length of 0 marks that header is final
+ * CRC will be replaced on-the-fly on "config upload"
+ */
+ header.block_id = 0;
+ header.len = 0;
+ header.crc = 0xDEADBEEF;
+ memset(p, 0, SJA1105_SIZE_TABLE_HEADER);
+ sja1105_table_header_packing(p, &header, PACK);
+}
+
+size_t
+sja1105_static_config_get_length(const struct sja1105_static_config *config)
+{
+ unsigned int sum;
+ unsigned int header_count;
+ enum sja1105_blk_idx i;
+
+ /* Ending header */
+ header_count = 1;
+ sum = SJA1105_SIZE_DEVICE_ID;
+
+ /* Tables (headers and entries) */
+ for (i = 0; i < BLK_IDX_MAX; i++) {
+ const struct sja1105_table *table;
+
+ table = &config->tables[i];
+ if (table->entry_count)
+ header_count++;
+
+ sum += table->ops->packed_entry_size * table->entry_count;
+ }
+ /* Headers have an additional CRC at the end */
+ sum += header_count * (SJA1105_SIZE_TABLE_HEADER + 4);
+ /* Last header does not have an extra CRC because there is no data */
+ sum -= 4;
+
+ return sum;
+}
+
+/* Compatibility matrices */
+
+/* SJA1105E: First generation, no TTEthernet */
+struct sja1105_table_ops sja1105e_table_ops[BLK_IDX_MAX] = {
+ [BLK_IDX_L2_LOOKUP] = {
+ .packing = sja1105et_l2_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
+ .packed_entry_size = SJA1105ET_SIZE_L2_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_POLICING] = {
+ .packing = sja1105_l2_policing_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
+ },
+ [BLK_IDX_VLAN_LOOKUP] = {
+ .packing = sja1105_vlan_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
+ .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING] = {
+ .packing = sja1105_l2_forwarding_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
+ },
+ [BLK_IDX_MAC_CONFIG] = {
+ .packing = sja1105et_mac_config_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
+ .packed_entry_size = SJA1105ET_SIZE_MAC_CONFIG_ENTRY,
+ .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
+ },
+ [BLK_IDX_L2_LOOKUP_PARAMS] = {
+ .packing = sja1105et_l2_lookup_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
+ .packed_entry_size = SJA1105ET_SIZE_L2_LOOKUP_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING_PARAMS] = {
+ .packing = sja1105_l2_forwarding_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
+ },
+ [BLK_IDX_GENERAL_PARAMS] = {
+ .packing = sja1105et_general_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
+ .packed_entry_size = SJA1105ET_SIZE_GENERAL_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
+ },
+ [BLK_IDX_XMII_PARAMS] = {
+ .packing = sja1105_xmii_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
+ .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
+ },
+};
+
+/* SJA1105T: First generation, TTEthernet */
+struct sja1105_table_ops sja1105t_table_ops[BLK_IDX_MAX] = {
+ [BLK_IDX_L2_LOOKUP] = {
+ .packing = sja1105et_l2_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
+ .packed_entry_size = SJA1105ET_SIZE_L2_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_POLICING] = {
+ .packing = sja1105_l2_policing_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
+ },
+ [BLK_IDX_VLAN_LOOKUP] = {
+ .packing = sja1105_vlan_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
+ .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING] = {
+ .packing = sja1105_l2_forwarding_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
+ },
+ [BLK_IDX_MAC_CONFIG] = {
+ .packing = sja1105et_mac_config_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
+ .packed_entry_size = SJA1105ET_SIZE_MAC_CONFIG_ENTRY,
+ .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
+ },
+ [BLK_IDX_L2_LOOKUP_PARAMS] = {
+ .packing = sja1105et_l2_lookup_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
+ .packed_entry_size = SJA1105ET_SIZE_L2_LOOKUP_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING_PARAMS] = {
+ .packing = sja1105_l2_forwarding_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
+ },
+ [BLK_IDX_GENERAL_PARAMS] = {
+ .packing = sja1105et_general_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
+ .packed_entry_size = SJA1105ET_SIZE_GENERAL_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
+ },
+ [BLK_IDX_XMII_PARAMS] = {
+ .packing = sja1105_xmii_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
+ .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
+ },
+};
+
+/* SJA1105P: Second generation, no TTEthernet, no SGMII */
+struct sja1105_table_ops sja1105p_table_ops[BLK_IDX_MAX] = {
+ [BLK_IDX_L2_LOOKUP] = {
+ .packing = sja1105pqrs_l2_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_POLICING] = {
+ .packing = sja1105_l2_policing_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
+ },
+ [BLK_IDX_VLAN_LOOKUP] = {
+ .packing = sja1105_vlan_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
+ .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING] = {
+ .packing = sja1105_l2_forwarding_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
+ },
+ [BLK_IDX_MAC_CONFIG] = {
+ .packing = sja1105pqrs_mac_config_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
+ .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
+ },
+ [BLK_IDX_L2_LOOKUP_PARAMS] = {
+ .packing = sja1105pqrs_l2_lookup_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING_PARAMS] = {
+ .packing = sja1105_l2_forwarding_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
+ },
+ [BLK_IDX_GENERAL_PARAMS] = {
+ .packing = sja1105pqrs_general_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
+ },
+ [BLK_IDX_XMII_PARAMS] = {
+ .packing = sja1105_xmii_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
+ .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
+ },
+};
+
+/* SJA1105Q: Second generation, TTEthernet, no SGMII */
+struct sja1105_table_ops sja1105q_table_ops[BLK_IDX_MAX] = {
+ [BLK_IDX_L2_LOOKUP] = {
+ .packing = sja1105pqrs_l2_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_POLICING] = {
+ .packing = sja1105_l2_policing_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
+ },
+ [BLK_IDX_VLAN_LOOKUP] = {
+ .packing = sja1105_vlan_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
+ .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING] = {
+ .packing = sja1105_l2_forwarding_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
+ },
+ [BLK_IDX_MAC_CONFIG] = {
+ .packing = sja1105pqrs_mac_config_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
+ .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
+ },
+ [BLK_IDX_L2_LOOKUP_PARAMS] = {
+ .packing = sja1105pqrs_l2_lookup_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING_PARAMS] = {
+ .packing = sja1105_l2_forwarding_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
+ },
+ [BLK_IDX_GENERAL_PARAMS] = {
+ .packing = sja1105pqrs_general_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
+ },
+ [BLK_IDX_XMII_PARAMS] = {
+ .packing = sja1105_xmii_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
+ .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
+ },
+};
+
+/* SJA1105R: Second generation, no TTEthernet, SGMII */
+struct sja1105_table_ops sja1105r_table_ops[BLK_IDX_MAX] = {
+ [BLK_IDX_L2_LOOKUP] = {
+ .packing = sja1105pqrs_l2_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_POLICING] = {
+ .packing = sja1105_l2_policing_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
+ },
+ [BLK_IDX_VLAN_LOOKUP] = {
+ .packing = sja1105_vlan_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
+ .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING] = {
+ .packing = sja1105_l2_forwarding_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
+ },
+ [BLK_IDX_MAC_CONFIG] = {
+ .packing = sja1105pqrs_mac_config_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
+ .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
+ },
+ [BLK_IDX_L2_LOOKUP_PARAMS] = {
+ .packing = sja1105pqrs_l2_lookup_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING_PARAMS] = {
+ .packing = sja1105_l2_forwarding_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
+ },
+ [BLK_IDX_GENERAL_PARAMS] = {
+ .packing = sja1105pqrs_general_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
+ },
+ [BLK_IDX_XMII_PARAMS] = {
+ .packing = sja1105_xmii_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
+ .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
+ },
+};
+
+/* SJA1105S: Second generation, TTEthernet, SGMII */
+struct sja1105_table_ops sja1105s_table_ops[BLK_IDX_MAX] = {
+ [BLK_IDX_L2_LOOKUP] = {
+ .packing = sja1105pqrs_l2_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_POLICING] = {
+ .packing = sja1105_l2_policing_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_policing_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_POLICING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_POLICING_COUNT,
+ },
+ [BLK_IDX_VLAN_LOOKUP] = {
+ .packing = sja1105_vlan_lookup_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_vlan_lookup_entry),
+ .packed_entry_size = SJA1105_SIZE_VLAN_LOOKUP_ENTRY,
+ .max_entry_count = SJA1105_MAX_VLAN_LOOKUP_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING] = {
+ .packing = sja1105_l2_forwarding_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_COUNT,
+ },
+ [BLK_IDX_MAC_CONFIG] = {
+ .packing = sja1105pqrs_mac_config_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_mac_config_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
+ .max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
+ },
+ [BLK_IDX_L2_LOOKUP_PARAMS] = {
+ .packing = sja1105pqrs_l2_lookup_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_L2_LOOKUP_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT,
+ },
+ [BLK_IDX_L2_FORWARDING_PARAMS] = {
+ .packing = sja1105_l2_forwarding_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_l2_forwarding_params_entry),
+ .packed_entry_size = SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT,
+ },
+ [BLK_IDX_GENERAL_PARAMS] = {
+ .packing = sja1105pqrs_general_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_general_params_entry),
+ .packed_entry_size = SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_GENERAL_PARAMS_COUNT,
+ },
+ [BLK_IDX_XMII_PARAMS] = {
+ .packing = sja1105_xmii_params_entry_packing,
+ .unpacked_entry_size = sizeof(struct sja1105_xmii_params_entry),
+ .packed_entry_size = SJA1105_SIZE_XMII_PARAMS_ENTRY,
+ .max_entry_count = SJA1105_MAX_XMII_PARAMS_COUNT,
+ },
+};
+
+int sja1105_static_config_init(struct sja1105_static_config *config,
+ const struct sja1105_table_ops *static_ops,
+ u64 device_id)
+{
+ enum sja1105_blk_idx i;
+
+ *config = (struct sja1105_static_config) {0};
+
+ /* Transfer static_ops array from priv into per-table ops
+ * for handier access
+ */
+ for (i = 0; i < BLK_IDX_MAX; i++)
+ config->tables[i].ops = &static_ops[i];
+
+ config->device_id = device_id;
+ return 0;
+}
+
+void sja1105_static_config_free(struct sja1105_static_config *config)
+{
+ enum sja1105_blk_idx i;
+
+ for (i = 0; i < BLK_IDX_MAX; i++) {
+ if (config->tables[i].entry_count) {
+ kfree(config->tables[i].entries);
+ config->tables[i].entry_count = 0;
+ }
+ }
+}
diff --git a/drivers/net/dsa/sja1105/sja1105_static_config.h b/drivers/net/dsa/sja1105/sja1105_static_config.h
new file mode 100644
index 000000000000..7b0a02fe3147
--- /dev/null
+++ b/drivers/net/dsa/sja1105/sja1105_static_config.h
@@ -0,0 +1,250 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2016-2018, NXP Semiconductors
+ * Copyright (c) 2018-2019, Vladimir Oltean <olteanv@xxxxxxxxx>
+ */
+#ifndef _SJA1105_STATIC_CONFIG_H
+#define _SJA1105_STATIC_CONFIG_H
+
+#include <linux/packing.h>
+#include <linux/types.h>
+#include <asm/types.h>
+
+#define SJA1105_SIZE_DEVICE_ID 4
+#define SJA1105_SIZE_TABLE_HEADER 12
+#define SJA1105_SIZE_L2_POLICING_ENTRY 8
+#define SJA1105_SIZE_VLAN_LOOKUP_ENTRY 8
+#define SJA1105_SIZE_L2_FORWARDING_ENTRY 8
+#define SJA1105_SIZE_L2_FORWARDING_PARAMS_ENTRY 12
+#define SJA1105_SIZE_XMII_PARAMS_ENTRY 4
+#define SJA1105ET_SIZE_L2_LOOKUP_ENTRY 12
+#define SJA1105ET_SIZE_MAC_CONFIG_ENTRY 28
+#define SJA1105ET_SIZE_L2_LOOKUP_PARAMS_ENTRY 4
+#define SJA1105ET_SIZE_GENERAL_PARAMS_ENTRY 40
+#define SJA1105PQRS_SIZE_L2_LOOKUP_ENTRY 20
+#define SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY 32
+#define SJA1105PQRS_SIZE_L2_LOOKUP_PARAMS_ENTRY 16
+#define SJA1105PQRS_SIZE_GENERAL_PARAMS_ENTRY 44
+
+/* UM10944.pdf Page 11, Table 2. Configuration Blocks */
+enum {
+ BLKID_L2_LOOKUP = 0x05,
+ BLKID_L2_POLICING = 0x06,
+ BLKID_VLAN_LOOKUP = 0x07,
+ BLKID_L2_FORWARDING = 0x08,
+ BLKID_MAC_CONFIG = 0x09,
+ BLKID_L2_LOOKUP_PARAMS = 0x0D,
+ BLKID_L2_FORWARDING_PARAMS = 0x0E,
+ BLKID_GENERAL_PARAMS = 0x11,
+ BLKID_XMII_PARAMS = 0x4E,
+};
+
+enum sja1105_blk_idx {
+ BLK_IDX_L2_LOOKUP = 0,
+ BLK_IDX_L2_POLICING,
+ BLK_IDX_VLAN_LOOKUP,
+ BLK_IDX_L2_FORWARDING,
+ BLK_IDX_MAC_CONFIG,
+ BLK_IDX_L2_LOOKUP_PARAMS,
+ BLK_IDX_L2_FORWARDING_PARAMS,
+ BLK_IDX_GENERAL_PARAMS,
+ BLK_IDX_XMII_PARAMS,
+ BLK_IDX_MAX,
+ /* Fake block indices that are only valid for dynamic access */
+ BLK_IDX_MGMT_ROUTE,
+ BLK_IDX_MAX_DYN,
+ BLK_IDX_INVAL = -1,
+};
+
+#define SJA1105_MAX_L2_LOOKUP_COUNT 1024
+#define SJA1105_MAX_L2_POLICING_COUNT 45
+#define SJA1105_MAX_VLAN_LOOKUP_COUNT 4096
+#define SJA1105_MAX_L2_FORWARDING_COUNT 13
+#define SJA1105_MAX_MAC_CONFIG_COUNT 5
+#define SJA1105_MAX_L2_LOOKUP_PARAMS_COUNT 1
+#define SJA1105_MAX_L2_FORWARDING_PARAMS_COUNT 1
+#define SJA1105_MAX_GENERAL_PARAMS_COUNT 1
+#define SJA1105_MAX_XMII_PARAMS_COUNT 1
+
+#define SJA1105_MAX_FRAME_MEMORY 929
+
+#define SJA1105E_DEVICE_ID 0x9C00000Cull
+#define SJA1105T_DEVICE_ID 0x9E00030Eull
+#define SJA1105PR_DEVICE_ID 0xAF00030Eull
+#define SJA1105QS_DEVICE_ID 0xAE00030Eull
+
+#define SJA1105ET_PART_NO 0x9A83
+#define SJA1105P_PART_NO 0x9A84
+#define SJA1105Q_PART_NO 0x9A85
+#define SJA1105R_PART_NO 0x9A86
+#define SJA1105S_PART_NO 0x9A87
+
+struct sja1105_general_params_entry {
+ u64 vllupformat;
+ u64 mirr_ptacu;
+ u64 switchid;
+ u64 hostprio;
+ u64 mac_fltres1;
+ u64 mac_fltres0;
+ u64 mac_flt1;
+ u64 mac_flt0;
+ u64 incl_srcpt1;
+ u64 incl_srcpt0;
+ u64 send_meta1;
+ u64 send_meta0;
+ u64 casc_port;
+ u64 host_port;
+ u64 mirr_port;
+ u64 vlmarker;
+ u64 vlmask;
+ u64 tpid;
+ u64 ignore2stf;
+ u64 tpid2;
+ /* P/Q/R/S only */
+ u64 queue_ts;
+ u64 egrmirrvid;
+ u64 egrmirrpcp;
+ u64 egrmirrdei;
+ u64 replay_port;
+};
+
+struct sja1105_vlan_lookup_entry {
+ u64 ving_mirr;
+ u64 vegr_mirr;
+ u64 vmemb_port;
+ u64 vlan_bc;
+ u64 tag_port;
+ u64 vlanid;
+};
+
+struct sja1105_l2_lookup_entry {
+ u64 vlanid;
+ u64 macaddr;
+ u64 destports;
+ u64 enfport;
+ u64 index;
+};
+
+struct sja1105_l2_lookup_params_entry {
+ u64 maxage; /* Shared */
+ u64 dyn_tbsz; /* E/T only */
+ u64 poly; /* E/T only */
+ u64 shared_learn; /* Shared */
+ u64 no_enf_hostprt; /* Shared */
+ u64 no_mgmt_learn; /* Shared */
+};
+
+struct sja1105_l2_forwarding_entry {
+ u64 bc_domain;
+ u64 reach_port;
+ u64 fl_domain;
+ u64 vlan_pmap[8];
+};
+
+struct sja1105_l2_forwarding_params_entry {
+ u64 max_dynp;
+ u64 part_spc[8];
+};
+
+struct sja1105_l2_policing_entry {
+ u64 sharindx;
+ u64 smax;
+ u64 rate;
+ u64 maxlen;
+ u64 partition;
+};
+
+struct sja1105_mac_config_entry {
+ u64 top[8];
+ u64 base[8];
+ u64 enabled[8];
+ u64 ifg;
+ u64 speed;
+ u64 tp_delin;
+ u64 tp_delout;
+ u64 maxage;
+ u64 vlanprio;
+ u64 vlanid;
+ u64 ing_mirr;
+ u64 egr_mirr;
+ u64 drpnona664;
+ u64 drpdtag;
+ u64 drpuntag;
+ u64 retag;
+ u64 dyn_learn;
+ u64 egress;
+ u64 ingress;
+};
+
+struct sja1105_xmii_params_entry {
+ u64 phy_mac[5];
+ u64 xmii_mode[5];
+};
+
+struct sja1105_table_header {
+ u64 block_id;
+ u64 len;
+ u64 crc;
+};
+
+struct sja1105_table_ops {
+ size_t (*packing)(void *buf, void *entry_ptr, enum packing_op op);
+ size_t unpacked_entry_size;
+ size_t packed_entry_size;
+ size_t max_entry_count;
+};
+
+struct sja1105_table {
+ const struct sja1105_table_ops *ops;
+ size_t entry_count;
+ void *entries;
+};
+
+struct sja1105_static_config {
+ u64 device_id;
+ struct sja1105_table tables[BLK_IDX_MAX];
+};
+
+extern struct sja1105_table_ops sja1105e_table_ops[BLK_IDX_MAX];
+extern struct sja1105_table_ops sja1105t_table_ops[BLK_IDX_MAX];
+extern struct sja1105_table_ops sja1105p_table_ops[BLK_IDX_MAX];
+extern struct sja1105_table_ops sja1105q_table_ops[BLK_IDX_MAX];
+extern struct sja1105_table_ops sja1105r_table_ops[BLK_IDX_MAX];
+extern struct sja1105_table_ops sja1105s_table_ops[BLK_IDX_MAX];
+
+size_t sja1105_table_header_packing(void *buf, void *hdr, enum packing_op op);
+void
+sja1105_table_header_pack_with_crc(void *buf, struct sja1105_table_header *hdr);
+size_t
+sja1105_static_config_get_length(const struct sja1105_static_config *config);
+
+typedef enum {
+ SJA1105_CONFIG_OK = 0,
+ SJA1105_MISSING_L2_POLICING_TABLE,
+ SJA1105_MISSING_L2_FORWARDING_TABLE,
+ SJA1105_MISSING_L2_FORWARDING_PARAMS_TABLE,
+ SJA1105_MISSING_GENERAL_PARAMS_TABLE,
+ SJA1105_MISSING_VLAN_TABLE,
+ SJA1105_MISSING_XMII_TABLE,
+ SJA1105_MISSING_MAC_TABLE,
+ SJA1105_OVERCOMMITTED_FRAME_MEMORY,
+} sja1105_config_valid_t;
+
+extern const char *sja1105_static_config_error_msg[];
+
+sja1105_config_valid_t
+sja1105_static_config_check_valid(const struct sja1105_static_config *config);
+void
+sja1105_static_config_pack(void *buf, struct sja1105_static_config *config);
+int sja1105_static_config_init(struct sja1105_static_config *config,
+ const struct sja1105_table_ops *static_ops,
+ u64 device_id);
+void sja1105_static_config_free(struct sja1105_static_config *config);
+
+u32 sja1105_crc32(const void *buf, size_t len);
+
+void sja1105_pack(void *buf, const u64 *val, int start, int end, size_t len);
+void sja1105_unpack(const void *buf, u64 *val, int start, int end, size_t len);
+void sja1105_packing(void *buf, u64 *val, int start, int end,
+ size_t len, enum packing_op op);
+
+#endif
diff --git a/include/linux/dsa/sja1105.h b/include/linux/dsa/sja1105.h
new file mode 100644
index 000000000000..30559d1d0e1b
--- /dev/null
+++ b/include/linux/dsa/sja1105.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Copyright (c) 2019, Vladimir Oltean <olteanv@xxxxxxxxx>
+ */
+
+/* Included by drivers/net/dsa/sja1105/sja1105.h */
+
+#ifndef _NET_DSA_SJA1105_H
+#define _NET_DSA_SJA1105_H
+
+/* The switch can only be convinced to stay in unmanaged mode and not trap any
+ * link-local traffic by actually telling it to filter frames sent at the
+ * 00:00:00:00:00:00 destination MAC.
+ */
+#define SJA1105_LINKLOCAL_FILTER_A 0x000000000000ull
+#define SJA1105_LINKLOCAL_FILTER_A_MASK 0xFFFFFFFFFFFFull
+#define SJA1105_LINKLOCAL_FILTER_B 0x000000000000ull
+#define SJA1105_LINKLOCAL_FILTER_B_MASK 0xFFFFFFFFFFFFull
+
+#endif /* _NET_DSA_SJA1105_H */
--
2.17.1

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