[PATCH v2] mfd:rtsx: Support RTS5249

From: wei_wang
Date: Wed Apr 10 2013 - 22:44:05 EST

Next message: wei_wang: "[PATCH v2] Add new model: rts5249"
Previous message: Robin Holt: "Re: [PATCH] Sys V shared memory limited to 8TiB."
In reply to: wei_wang: "[PATCH v2] Add new model: rts5249"
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From: Wei WANG <wei_wang@xxxxxxxxxxxxxx>

Support new model: RTS5249

Signed-off-by: Wei WANG <wei_wang@xxxxxxxxxxxxxx>
---
drivers/mfd/Makefile | 2 +-
drivers/mfd/rts5249.c | 241 ++++++++++++++++++++++++++++++++++++++++++
drivers/mfd/rtsx_pcr.c | 5 +
drivers/mfd/rtsx_pcr.h | 1 +
include/linux/mfd/rtsx_pci.h | 36 +++++++
5 files changed, 284 insertions(+), 1 deletion(-)
create mode 100644 drivers/mfd/rts5249.c

diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index b90409c..f61ac02 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -9,7 +9,7 @@ obj-$(CONFIG_MFD_88PM805) += 88pm805.o 88pm80x.o
obj-$(CONFIG_MFD_SM501) += sm501.o
obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o

-rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o
+rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o rts5249.o
obj-$(CONFIG_MFD_RTSX_PCI) += rtsx_pci.o

obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o
diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c
new file mode 100644
index 0000000..15dc848
--- /dev/null
+++ b/drivers/mfd/rts5249.c
@@ -0,0 +1,241 @@
+/* Driver for Realtek PCI-Express card reader
+ *
+ * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author:
+ * Wei WANG <wei_wang@xxxxxxxxxxxxxx>
+ * No. 128, West Shenhu Road, Suzhou Industry Park, Suzhou, China
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/mfd/rtsx_pci.h>
+
+#include "rtsx_pcr.h"
+
+static u8 rts5249_get_ic_version(struct rtsx_pcr *pcr)
+{
+ u8 val;
+
+ rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val);
+ return val & 0x0F;
+}
+
+static int rts5249_extra_init_hw(struct rtsx_pcr *pcr)
+{
+ rtsx_pci_init_cmd(pcr);
+
+ /* Configure GPIO as output */
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, GPIO_CTL, 0x02, 0x02);
+ /* Switch LDO3318 source from DV33 to card_3v3 */
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x00);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x01);
+ /* LED shine disabled, set initial shine cycle period */
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OLT_LED_CTL, 0x0F, 0x02);
+ /* Correct driving */
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
+ SD30_CLK_DRIVE_SEL, 0xFF, 0x99);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
+ SD30_CMD_DRIVE_SEL, 0xFF, 0x99);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
+ SD30_DAT_DRIVE_SEL, 0xFF, 0x92);
+
+ return rtsx_pci_send_cmd(pcr, 100);
+}
+
+static int rts5249_optimize_phy(struct rtsx_pcr *pcr)
+{
+ int err;
+
+ err = rtsx_pci_write_phy_register(pcr, PHY_REG_REV, 0xFE46);
+ if (err < 0)
+ return err;
+
+ msleep(1);
+
+ return rtsx_pci_write_phy_register(pcr, PHY_BPCR, 0x05C0);
+}
+
+static int rts5249_turn_on_led(struct rtsx_pcr *pcr)
+{
+ return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02);
+}
+
+static int rts5249_turn_off_led(struct rtsx_pcr *pcr)
+{
+ return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00);
+}
+
+static int rts5249_enable_auto_blink(struct rtsx_pcr *pcr)
+{
+ return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08);
+}
+
+static int rts5249_disable_auto_blink(struct rtsx_pcr *pcr)
+{
+ return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00);
+}
+
+static int rts5249_card_power_on(struct rtsx_pcr *pcr, int card)
+{
+ int err;
+
+ rtsx_pci_init_cmd(pcr);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
+ SD_POWER_MASK, SD_VCC_PARTIAL_POWER_ON);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
+ LDO3318_PWR_MASK, 0x02);
+ err = rtsx_pci_send_cmd(pcr, 100);
+ if (err < 0)
+ return err;
+
+ msleep(5);
+
+ rtsx_pci_init_cmd(pcr);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
+ SD_POWER_MASK, SD_VCC_POWER_ON);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
+ LDO3318_PWR_MASK, 0x06);
+ err = rtsx_pci_send_cmd(pcr, 100);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int rts5249_card_power_off(struct rtsx_pcr *pcr, int card)
+{
+ rtsx_pci_init_cmd(pcr);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
+ SD_POWER_MASK, SD_POWER_OFF);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
+ LDO3318_PWR_MASK, 0x00);
+ return rtsx_pci_send_cmd(pcr, 100);
+}
+
+static int rts5249_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
+{
+ int err;
+ u8 clk_drive, cmd_drive, dat_drive;
+
+ if (voltage == OUTPUT_3V3) {
+ err = rtsx_pci_write_phy_register(pcr, PHY_TUNE, 0x4FC0 | 0x24);
+ if (err < 0)
+ return err;
+ clk_drive = 0x99;
+ cmd_drive = 0x99;
+ dat_drive = 0x92;
+ } else if (voltage == OUTPUT_1V8) {
+ err = rtsx_pci_write_phy_register(pcr, PHY_BACR, 0x3C02);
+ if (err < 0)
+ return err;
+ err = rtsx_pci_write_phy_register(pcr, PHY_TUNE, 0x4C40 | 0x24);
+ if (err < 0)
+ return err;
+ clk_drive = 0xb3;
+ cmd_drive = 0xb3;
+ dat_drive = 0xb3;
+ } else {
+ return -EINVAL;
+ }
+
+ /* set pad drive */
+ rtsx_pci_init_cmd(pcr);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CLK_DRIVE_SEL,
+ 0xFF, clk_drive);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CMD_DRIVE_SEL,
+ 0xFF, cmd_drive);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DAT_DRIVE_SEL,
+ 0xFF, dat_drive);
+ return rtsx_pci_send_cmd(pcr, 100);
+}
+
+static const struct pcr_ops rts5249_pcr_ops = {
+ .extra_init_hw = rts5249_extra_init_hw,
+ .optimize_phy = rts5249_optimize_phy,
+ .turn_on_led = rts5249_turn_on_led,
+ .turn_off_led = rts5249_turn_off_led,
+ .enable_auto_blink = rts5249_enable_auto_blink,
+ .disable_auto_blink = rts5249_disable_auto_blink,
+ .card_power_on = rts5249_card_power_on,
+ .card_power_off = rts5249_card_power_off,
+ .switch_output_voltage = rts5249_switch_output_voltage,
+};
+
+/* SD Pull Control Enable:
+ * SD_DAT[3:0] ==> pull up
+ * SD_CD ==> pull up
+ * SD_WP ==> pull up
+ * SD_CMD ==> pull up
+ * SD_CLK ==> pull down
+ */
+static const u32 rts5249_sd_pull_ctl_enable_tbl[] = {
+ RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
+ RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
+ RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9),
+ RTSX_REG_PAIR(CARD_PULL_CTL4, 0xAA),
+ 0,
+};
+
+/* SD Pull Control Disable:
+ * SD_DAT[3:0] ==> pull down
+ * SD_CD ==> pull up
+ * SD_WP ==> pull down
+ * SD_CMD ==> pull down
+ * SD_CLK ==> pull down
+ */
+static const u32 rts5249_sd_pull_ctl_disable_tbl[] = {
+ RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
+ RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
+ RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5),
+ RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
+ 0,
+};
+
+/* MS Pull Control Enable:
+ * MS CD ==> pull up
+ * others ==> pull down
+ */
+static const u32 rts5249_ms_pull_ctl_enable_tbl[] = {
+ RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
+ RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
+ RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
+ 0,
+};
+
+/* MS Pull Control Disable:
+ * MS CD ==> pull up
+ * others ==> pull down
+ */
+static const u32 rts5249_ms_pull_ctl_disable_tbl[] = {
+ RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
+ RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
+ RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
+ 0,
+};
+
+void rts5249_init_params(struct rtsx_pcr *pcr)
+{
+ pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
+ pcr->num_slots = 2;
+ pcr->ops = &rts5249_pcr_ops;
+
+ pcr->ic_version = rts5249_get_ic_version(pcr);
+ pcr->sd_pull_ctl_enable_tbl = rts5249_sd_pull_ctl_enable_tbl;
+ pcr->sd_pull_ctl_disable_tbl = rts5249_sd_pull_ctl_disable_tbl;
+ pcr->ms_pull_ctl_enable_tbl = rts5249_ms_pull_ctl_enable_tbl;
+ pcr->ms_pull_ctl_disable_tbl = rts5249_ms_pull_ctl_disable_tbl;
+}
diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c
index 2f12cc1..62b0e12 100644
--- a/drivers/mfd/rtsx_pcr.c
+++ b/drivers/mfd/rtsx_pcr.c
@@ -56,6 +56,7 @@ static DEFINE_PCI_DEVICE_TABLE(rtsx_pci_ids) = {
{ PCI_DEVICE(0x10EC, 0x5229), PCI_CLASS_OTHERS << 16, 0xFF0000 },
{ PCI_DEVICE(0x10EC, 0x5289), PCI_CLASS_OTHERS << 16, 0xFF0000 },
{ PCI_DEVICE(0x10EC, 0x5227), PCI_CLASS_OTHERS << 16, 0xFF0000 },
+ { PCI_DEVICE(0x10EC, 0x5249), PCI_CLASS_OTHERS << 16, 0xFF0000 },
{ 0, }
};

@@ -1033,6 +1034,10 @@ static int rtsx_pci_init_chip(struct rtsx_pcr *pcr)
case 0x5227:
rts5227_init_params(pcr);
break;
+
+ case 0x5249:
+ rts5249_init_params(pcr);
+ break;
}

dev_dbg(&(pcr->pci->dev), "PID: 0x%04x, IC version: 0x%02x\n",
diff --git a/drivers/mfd/rtsx_pcr.h b/drivers/mfd/rtsx_pcr.h
index 2b3ab8a..55fcfc2 100644
--- a/drivers/mfd/rtsx_pcr.h
+++ b/drivers/mfd/rtsx_pcr.h
@@ -32,5 +32,6 @@ void rts5209_init_params(struct rtsx_pcr *pcr);
void rts5229_init_params(struct rtsx_pcr *pcr);
void rtl8411_init_params(struct rtsx_pcr *pcr);
void rts5227_init_params(struct rtsx_pcr *pcr);
+void rts5249_init_params(struct rtsx_pcr *pcr);

#endif
diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h
index 26ea7f1..86bc635 100644
--- a/include/linux/mfd/rtsx_pci.h
+++ b/include/linux/mfd/rtsx_pci.h
@@ -500,6 +500,8 @@
#define BPP_POWER_15_PERCENT_ON 0x08
#define BPP_POWER_ON 0x00
#define BPP_POWER_MASK 0x0F
+#define SD_VCC_PARTIAL_POWER_ON 0x02
+#define SD_VCC_POWER_ON 0x00

/* PWR_GATE_CTRL */
#define PWR_GATE_EN 0x01
@@ -689,6 +691,40 @@
#define IMAGE_FLAG_ADDR0 0xCE80
#define IMAGE_FLAG_ADDR1 0xCE81

+/* Phy register */
+#define PHY_PCR 0x00
+#define PHY_RCR0 0x01
+#define PHY_RCR1 0x02
+#define PHY_RCR2 0x03
+#define PHY_RTCR 0x04
+#define PHY_RDR 0x05
+#define PHY_TCR0 0x06
+#define PHY_TCR1 0x07
+#define PHY_TUNE 0x08
+#define PHY_IMR 0x09
+#define PHY_BPCR 0x0A
+#define PHY_BIST 0x0B
+#define PHY_RAW_L 0x0C
+#define PHY_RAW_H 0x0D
+#define PHY_RAW_DATA 0x0E
+#define PHY_HOST_CLK_CTRL 0x0F
+#define PHY_DMR 0x10
+#define PHY_BACR 0x11
+#define PHY_IER 0x12
+#define PHY_BCSR 0x13
+#define PHY_BPR 0x14
+#define PHY_BPNR2 0x15
+#define PHY_BPNR 0x16
+#define PHY_BRNR2 0x17
+#define PHY_BENR 0x18
+#define PHY_REG_REV 0x19
+#define PHY_FLD0 0x1A
+#define PHY_FLD1 0x1B
+#define PHY_FLD2 0x1C
+#define PHY_FLD3 0x1D
+#define PHY_FLD4 0x1E
+#define PHY_DUM_REG 0x1F
+
#define rtsx_pci_init_cmd(pcr) ((pcr)->ci = 0)

struct rtsx_pcr;
--
1.7.9.5

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Next message: wei_wang: "[PATCH v2] Add new model: rts5249"
Previous message: Robin Holt: "Re: [PATCH] Sys V shared memory limited to 8TiB."
In reply to: wei_wang: "[PATCH v2] Add new model: rts5249"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]