Re: [PATCH] MIPS: NI 169445 board support
From: Zubair Lutfullah Kakakhel
Date: Fri Dec 02 2016 - 11:26:30 EST
Hi,
On 12/02/2016 03:42 PM, Nathan Sullivan wrote:
Support the National Instruments 169445 board.
Interesting patch.
But do you happen to have a link to a description of the board?
I couldn't find anything with a quick search.
Perhaps the public name is something else?
Thanks,
ZubairLK
Signed-off-by: Nathan Sullivan <nathan.sullivan@xxxxxx>
---
"gpio: mmio: add support for NI 169445 NAND GPIO" and
"devicetree: add vendor prefix for National Instruments" are required for the
NAND on this board to work.
Documentation/devicetree/bindings/mips/ni.txt | 7 ++
arch/mips/Kbuild.platforms | 1 +
arch/mips/Kconfig | 26 ++++++
arch/mips/boot/dts/Makefile | 1 +
arch/mips/boot/dts/ni/169445.dts | 99 +++++++++++++++++++++
arch/mips/boot/dts/ni/Makefile | 9 ++
arch/mips/configs/ni169445_defconfig | 120 ++++++++++++++++++++++++++
arch/mips/ni169445/169445-console.c | 38 ++++++++
arch/mips/ni169445/169445-init.c | 39 +++++++++
arch/mips/ni169445/169445-int.c | 34 ++++++++
arch/mips/ni169445/169445-setup.c | 58 +++++++++++++
arch/mips/ni169445/169445-time.c | 35 ++++++++
arch/mips/ni169445/Makefile | 9 ++
arch/mips/ni169445/Platform | 6 ++
14 files changed, 482 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mips/ni.txt
create mode 100644 arch/mips/boot/dts/ni/169445.dts
create mode 100644 arch/mips/boot/dts/ni/Makefile
create mode 100644 arch/mips/configs/ni169445_defconfig
create mode 100644 arch/mips/ni169445/169445-console.c
create mode 100644 arch/mips/ni169445/169445-init.c
create mode 100644 arch/mips/ni169445/169445-int.c
create mode 100644 arch/mips/ni169445/169445-setup.c
create mode 100644 arch/mips/ni169445/169445-time.c
create mode 100644 arch/mips/ni169445/Makefile
create mode 100644 arch/mips/ni169445/Platform
diff --git a/Documentation/devicetree/bindings/mips/ni.txt b/Documentation/devicetree/bindings/mips/ni.txt
new file mode 100644
index 0000000..722bf2d
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/ni.txt
@@ -0,0 +1,7 @@
+National Instruments MIPS platforms
+
+required root node properties:
+ - compatible: must be "ni,169445"
+
+CPU Nodes
+ - compatible: must be "mti,mips14KEc"
diff --git a/arch/mips/Kbuild.platforms b/arch/mips/Kbuild.platforms
index f5f1bdb..f2d7b5c 100644
--- a/arch/mips/Kbuild.platforms
+++ b/arch/mips/Kbuild.platforms
@@ -20,6 +20,7 @@ platforms += loongson32
platforms += loongson64
platforms += mti-malta
platforms += netlogic
+platforms += ni169445
platforms += paravirt
platforms += pic32
platforms += pistachio
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index b3c5bde..d24d11f 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -574,6 +574,32 @@ config NXP_STB225
help
Support for NXP Semiconductors STB225 Development Board.
+config NI_169445
+ bool "NI 169445 board"
+ select ARCH_WANT_OPTIONAL_GPIOLIB
+ select BOOT_ELF32
+ select BOOT_RAW
+ select BUILTIN_DTB
+ select CEVT_R4K
+ select CSRC_R4K
+ select CPU_MIPSR2_IRQ_VI
+ select CPU_MIPSR2_IRQ_EI
+ select DMA_NONCOHERENT
+ select IRQ_MIPS_CPU
+ select LIBFDT
+ select MIPS_MSC
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_HAS_EARLY_PRINTK
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select USE_OF
+ select COMMON_CLK
+ help
+ This enables support for the National Instruments 169445A
+ board.
+
+
config PMC_MSP
bool "PMC-Sierra MSP chipsets"
select CEVT_R4K
diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
index fc7a0a9..65a0ad8 100644
--- a/arch/mips/boot/dts/Makefile
+++ b/arch/mips/boot/dts/Makefile
@@ -3,6 +3,7 @@ dts-dirs += cavium-octeon
dts-dirs += ingenic
dts-dirs += lantiq
dts-dirs += mti
+dts-dirs += ni
dts-dirs += netlogic
dts-dirs += pic32
dts-dirs += qca
diff --git a/arch/mips/boot/dts/ni/169445.dts b/arch/mips/boot/dts/ni/169445.dts
new file mode 100644
index 0000000..a2b49f9
--- /dev/null
+++ b/arch/mips/boot/dts/ni/169445.dts
@@ -0,0 +1,99 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "ni,169445";
+
+ cpus {
+ mips-hpt-frequency = <25000000>;
+
+ cpu@0 {
+ compatible = "mti,mips14KEc";
+ };
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x0 0x08000000>;
+ };
+
+ clocks {
+ baseclk: baseclock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <50000000>;
+ };
+ };
+
+ cpu_intc: cpu_intc {
+ #address-cells = <0>;
+ compatible = "mti,cpu-interrupt-controller";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
+ ahb@0 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ gpio1: nand-gpio-out@1f300010 {
+ compatible = "ni,169445-nand-gpio";
+ reg = <0x1f300010 0x4>;
+ reg-names = "dat";
+ gpio-controller;
+ #gpio-cells = <2>;
+ ngpios = <5>;
+ };
+
+ gpio2: nand-gpio-in@1f300014 {
+ compatible = "ni,169445-nand-gpio";
+ reg = <0x1f300014 0x4>;
+ reg-names = "dat";
+ gpio-controller;
+ #gpio-cells = <2>;
+ ngpios = <1>;
+ };
+
+ nand@1f300000 {
+ compatible = "gpio-control-nand";
+ nand-on-flash-bbt;
+ nand-ecc-mode = "soft_bch";
+ nand-ecc-step-size = <512>;
+ nand-ecc-strength = <4>;
+ reg = <0x1f300000 4>;
+ gpios = <&gpio2 0 0>, /* rdy */
+ <&gpio1 1 0>, /* nce */
+ <&gpio1 2 0>, /* ale */
+ <&gpio1 3 0>, /* cle */
+ <&gpio1 4 0>; /* nwp */
+ };
+
+ serial@1f380000 {
+ compatible = "ns16550a";
+ reg = <0x1f380000 0x1000>;
+ interrupt-parent = <&cpu_intc>;
+ interrupts = <6>;
+ clocks = <&baseclk>;
+ reg-shift = <0>;
+ };
+
+ ethernet@1f340000 {
+ compatible = "snps,dwc-qos-ethernet-4.10";
+ interrupt-parent = <&cpu_intc>;
+ interrupts = <5>;
+ reg = <0x1f340000 0x2000>;
+ clock-names = "apb_pclk", "phy_ref_clk";
+ clocks = <&baseclk>, <&baseclk>;
+
+ phy-mode = "rgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+ };
+};
diff --git a/arch/mips/boot/dts/ni/Makefile b/arch/mips/boot/dts/ni/Makefile
new file mode 100644
index 0000000..5291c18
--- /dev/null
+++ b/arch/mips/boot/dts/ni/Makefile
@@ -0,0 +1,9 @@
+dtb-$(CONFIG_NI_169445) += 169445.dtb
+
+obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
+
+# Force kbuild to make empty built-in.o if necessary
+obj- += dummy.o
+
+always := $(dtb-y)
+clean-files := *.dtb *.dtb.S
diff --git a/arch/mips/configs/ni169445_defconfig b/arch/mips/configs/ni169445_defconfig
new file mode 100644
index 0000000..e5a34df
--- /dev/null
+++ b/arch/mips/configs/ni169445_defconfig
@@ -0,0 +1,120 @@
+CONFIG_NI_169445=y
+CONFIG_CPU_MIPS32_R2=y
+CONFIG_HZ_100=y
+CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER=y
+# CONFIG_SWAP is not set
+CONFIG_SYSVIPC=y
+CONFIG_HZ_PERIODIC=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=15
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_GZIP is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_RD_LZ4 is not set
+# CONFIG_SHMEM is not set
+CONFIG_EMBEDDED=y
+CONFIG_SLAB=y
+CONFIG_PROFILING=y
+# CONFIG_LBDAF is not set
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_SUSPEND is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
+CONFIG_NETFILTER=y
+CONFIG_NETFILTER_XT_MATCH_MULTIPORT=y
+CONFIG_IP_NF_IPTABLES=y
+CONFIG_IP_NF_FILTER=y
+CONFIG_IP6_NF_IPTABLES=y
+CONFIG_IP6_NF_FILTER=y
+# CONFIG_WIRELESS is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_MTD=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_BLOCK_RO=y
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_ECC_BCH=y
+CONFIG_MTD_NAND_GPIO=y
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_BLOCK=y
+CONFIG_NETDEVICES=y
+# CONFIG_NET_VENDOR_AMAZON is not set
+# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
+# CONFIG_NET_VENDOR_QUALCOMM is not set
+# CONFIG_NET_VENDOR_RENESAS is not set
+# CONFIG_NET_VENDOR_ROCKER is not set
+# CONFIG_NET_VENDOR_SAMSUNG is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+CONFIG_SYNOPSYS_DWC_ETH_QOS=y
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_XILINX is not set
+# CONFIG_WLAN is not set
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+# CONFIG_CONSOLE_TRANSLATIONS is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_LEGACY_PTY_COUNT=32
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=2
+CONFIG_SERIAL_8250_RUNTIME_UARTS=2
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_GENERIC_PLATFORM=y
+# CONFIG_HWMON is not set
+# CONFIG_VGA_CONSOLE is not set
+# CONFIG_HID is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_MIPS_PLATFORM_DEVICES is not set
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_UBIFS_FS=y
+CONFIG_UBIFS_FS_ADVANCED_COMPR=y
+# CONFIG_UBIFS_FS_ZLIB is not set
+CONFIG_SQUASHFS=y
+# CONFIG_SQUASHFS_ZLIB is not set
+CONFIG_SQUASHFS_LZO=y
+CONFIG_SQUASHFS_XZ=y
+# CONFIG_NETWORK_FILESYSTEMS is not set
+# CONFIG_FTRACE is not set
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_ECB=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_ARC4=y
+# CONFIG_CRYPTO_HW is not set
+# CONFIG_XZ_DEC_X86 is not set
+# CONFIG_XZ_DEC_POWERPC is not set
+# CONFIG_XZ_DEC_IA64 is not set
+# CONFIG_XZ_DEC_ARM is not set
+# CONFIG_XZ_DEC_ARMTHUMB is not set
+# CONFIG_XZ_DEC_SPARC is not set
diff --git a/arch/mips/ni169445/169445-console.c b/arch/mips/ni169445/169445-console.c
new file mode 100644
index 0000000..f07e48b
--- /dev/null
+++ b/arch/mips/ni169445/169445-console.c
@@ -0,0 +1,38 @@
+/* Copyright 2016 National Instruments Corporation
+ *
+ * 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 of the License, 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.
+ */
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/serial_reg.h>
+#include <linux/io.h>
+
+#define NI_UART0_REGS_BASE ((unsigned char __iomem *)0xbf380000)
+
+static inline unsigned char serial_in(int offset)
+{
+ return __raw_readb(NI_UART0_REGS_BASE + offset);
+}
+
+static inline void serial_out(int offset, char value)
+{
+ __raw_writeb(value, NI_UART0_REGS_BASE + offset);
+}
+
+int prom_putchar(char c)
+{
+ while ((serial_in(UART_LSR) & UART_LSR_THRE) == 0)
+ ;
+
+ serial_out(UART_TX, c);
+
+ return 1;
+}
diff --git a/arch/mips/ni169445/169445-init.c b/arch/mips/ni169445/169445-init.c
new file mode 100644
index 0000000..5c7ff5e
--- /dev/null
+++ b/arch/mips/ni169445/169445-init.c
@@ -0,0 +1,39 @@
+/* Copyright 2016 National Instruments Corporation
+ *
+ * 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 of the License, 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.
+ */
+#include <linux/init.h>
+#include <linux/initrd.h>
+#include <linux/io.h>
+
+#include <asm/bootinfo.h>
+#include <asm/cacheflush.h>
+#include <asm/traps.h>
+#include <asm/mips-boards/generic.h>
+#include <asm/fw/fw.h>
+
+void __init prom_init(void)
+{
+ fw_init_cmdline();
+
+#ifdef CONFIG_BLK_DEV_INITRD
+ /* Read the initrd address from the firmware environment */
+ initrd_start = fw_getenvl("initrd_start");
+ if (initrd_start) {
+ initrd_start = KSEG0ADDR(initrd_start);
+ initrd_end = initrd_start + fw_getenvl("initrd_size");
+ }
+#endif
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
diff --git a/arch/mips/ni169445/169445-int.c b/arch/mips/ni169445/169445-int.c
new file mode 100644
index 0000000..83caf79
--- /dev/null
+++ b/arch/mips/ni169445/169445-int.c
@@ -0,0 +1,34 @@
+/* Copyright 2016 National Instruments Corporation
+ *
+ * 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 of the License, 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.
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/of_irq.h>
+#include <linux/irqchip/mips-gic.h>
+#include <linux/io.h>
+
+#include <asm/irq_cpu.h>
+#include <asm/setup.h>
+
+static const struct of_device_id of_irq_ids[] __initconst = {
+ {
+ .compatible = "mti,cpu-interrupt-controller",
+ .data = mips_cpu_irq_of_init
+ },
+ {},
+};
+
+void __init arch_init_irq(void)
+{
+ of_irq_init(of_irq_ids);
+}
+
diff --git a/arch/mips/ni169445/169445-setup.c b/arch/mips/ni169445/169445-setup.c
new file mode 100644
index 0000000..80a5c91
--- /dev/null
+++ b/arch/mips/ni169445/169445-setup.c
@@ -0,0 +1,58 @@
+/* Copyright 2016 National Instruments Corporation
+ *
+ * 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 of the License, 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.
+ */
+#include <linux/init.h>
+#include <linux/clk-provider.h>
+#include <linux/libfdt.h>
+#include <linux/of_platform.h>
+#include <linux/of_fdt.h>
+
+#include <asm/prom.h>
+#include <asm/fw/fw.h>
+
+#include <asm/mips-boards/generic.h>
+
+const char *get_system_type(void)
+{
+ return "NI 169445 FPGA";
+}
+
+void __init plat_mem_setup(void)
+{
+ /*
+ * Load the builtin devicetree. This causes the chosen node to be
+ * parsed resulting in our memory appearing
+ */
+ __dt_setup_arch(__dtb_start);
+}
+
+void __init device_tree_init(void)
+{
+ if (!initial_boot_params)
+ return;
+
+ unflatten_and_copy_device_tree();
+}
+
+static int __init customize_machine(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+ return 0;
+}
+arch_initcall(customize_machine);
+
+static int __init plat_dev_init(void)
+{
+ of_clk_init(NULL);
+ return 0;
+}
+device_initcall(plat_dev_init);
diff --git a/arch/mips/ni169445/169445-time.c b/arch/mips/ni169445/169445-time.c
new file mode 100644
index 0000000..3d2499e
--- /dev/null
+++ b/arch/mips/ni169445/169445-time.c
@@ -0,0 +1,35 @@
+/* Copyright 2016 National Instruments Corporation
+ *
+ * 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 of the License, 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.
+ */
+
+#include <linux/init.h>
+#include <linux/of.h>
+
+#include <asm/time.h>
+
+void __init plat_time_init(void)
+{
+ struct device_node *np;
+ u32 freq;
+
+ np = of_find_node_by_name(NULL, "cpus");
+ if (!np)
+ panic("missing 'cpus' DT node");
+ if (of_property_read_u32(np, "mips-hpt-frequency", &freq) < 0)
+ panic("missing 'mips-hpt-frequency' property");
+ of_node_put(np);
+
+ mips_hpt_frequency = freq;
+
+ /* IRQs will not work until the timer has been set at least once */
+ write_c0_count(0);
+}
diff --git a/arch/mips/ni169445/Makefile b/arch/mips/ni169445/Makefile
new file mode 100644
index 0000000..f3a0c8c
--- /dev/null
+++ b/arch/mips/ni169445/Makefile
@@ -0,0 +1,9 @@
+#
+#
+obj-y := 169445-init.o \
+ 169445-int.o 169445-setup.o \
+ 169445-time.o
+
+obj-$(CONFIG_EARLY_PRINTK) += 169445-console.o
+
+CFLAGS_169445-setup.o = -I$(src)/../../../scripts/dtc/libfdt
diff --git a/arch/mips/ni169445/Platform b/arch/mips/ni169445/Platform
new file mode 100644
index 0000000..9380312
--- /dev/null
+++ b/arch/mips/ni169445/Platform
@@ -0,0 +1,6 @@
+#
+# National Instruments 169445 FPGA board
+#
+platform-$(CONFIG_NI_169445) += ni169445/
+load-$(CONFIG_NI_169445) += 0xffffffff80002000
+all-$(CONFIG_NI_169445) := $(COMPRESSION_FNAME).srec