[PATCH v2] ARM: S3C24XX: add devicetree support for smdk2416
Heiko Stübner
heiko at sntech.de
Sat Apr 13 10:06:47 EDT 2013
Definitions in s3c24xx.dtsi are usable for all s3c24xx SoCs, but some
need to be extended with proper compatible properties, as can be seen
in s3c2416.dtsi .
Signed-off-by: Heiko Stuebner <heiko at sntech.de>
Reviewed-by: Sylwester Nawrocki <s.nawrocki at samsung.com>
---
changes since v1:
fix compatible property of default irq controller
(the correct one is samsung,s3c2410-irq)
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/s3c2416-pinctrl.dtsi | 173 +++++++++++++++++++++++++++++++
arch/arm/boot/dts/s3c2416-smdk2416.dts | 72 +++++++++++++
arch/arm/boot/dts/s3c2416.dtsi | 79 ++++++++++++++
arch/arm/boot/dts/s3c24xx.dtsi | 92 ++++++++++++++++
arch/arm/mach-s3c24xx/Kconfig | 12 ++
arch/arm/mach-s3c24xx/Makefile | 1 +
arch/arm/mach-s3c24xx/mach-s3c2416-dt.c | 91 ++++++++++++++++
8 files changed, 521 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/boot/dts/s3c2416-pinctrl.dtsi
create mode 100644 arch/arm/boot/dts/s3c2416-smdk2416.dts
create mode 100644 arch/arm/boot/dts/s3c2416.dtsi
create mode 100644 arch/arm/boot/dts/s3c24xx.dtsi
create mode 100644 arch/arm/mach-s3c24xx/mach-s3c2416-dt.c
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index d3cd880..4296353 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -137,6 +137,7 @@ dtb-$(CONFIG_ARCH_U8500) += snowball.dtb \
hrefprev60.dtb \
hrefv60plus.dtb \
ccu9540.dtb
+dtb-$(CONFIG_ARCH_S3C24XX) += s3c2416-smdk2416.dtb
dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \
r8a7740-armadillo800eva.dtb \
sh73a0-kzm9g.dtb \
diff --git a/arch/arm/boot/dts/s3c2416-pinctrl.dtsi b/arch/arm/boot/dts/s3c2416-pinctrl.dtsi
new file mode 100644
index 0000000..527e319
--- /dev/null
+++ b/arch/arm/boot/dts/s3c2416-pinctrl.dtsi
@@ -0,0 +1,173 @@
+/*
+ * Samsung S3C2416 pinctrl settings
+ *
+ * Copyright (c) 2013 Heiko Stuebner <heiko at sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+&pinctrl_0 {
+ /*
+ * Pin banks
+ */
+
+ gpa: gpa {
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ gpb: gpb {
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ gpc: gpc {
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ gpd: gpd {
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ gpe: gpe {
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ gpf: gpf {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpg: gpg {
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gph: gph {
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ gpj: gpj {
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ gpk: gpk {
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ gpl: gpl {
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ gpm: gpm {
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ /*
+ * Pin groups
+ */
+
+ uart0_data: uart0-data {
+ samsung,pins = "gph-0", "gph-1";
+ samsung,pin-function = <2>;
+ };
+
+ uart0_fctl: uart0-fctl {
+ samsung,pins = "gph-8", "gph-9";
+ samsung,pin-function = <2>;
+ };
+
+ uart1_data: uart1-data {
+ samsung,pins = "gph-2", "gph-3";
+ samsung,pin-function = <2>;
+ };
+
+ uart1_fctl: uart1-fctl {
+ samsung,pins = "gph-10", "gph-11";
+ samsung,pin-function = <2>;
+ };
+
+ uart2_data: uart2-data {
+ samsung,pins = "gph-4", "gph-5";
+ samsung,pin-function = <2>;
+ };
+
+ uart2_fctl: uart2-fctl {
+ samsung,pins = "gph-6", "gph-7";
+ samsung,pin-function = <2>;
+ };
+
+ uart3_data: uart3-data {
+ samsung,pins = "gph-6", "gph-7";
+ samsung,pin-function = <2>;
+ };
+
+ extuart_clk: extuart-clk {
+ samsung,pins = "gph-12";
+ samsung,pin-function = <2>;
+ };
+
+ i2c0_bus: i2c0-bus {
+ samsung,pins = "gpe-14", "gpe-15";
+ samsung,pin-function = <2>;
+ };
+
+ spi0_bus: spi0-bus {
+ samsung,pins = "gpe-11", "gpe-12", "gpe-13";
+ samsung,pin-function = <2>;
+ };
+
+ sd0_clk: sd0-clk {
+ samsung,pins = "gpe-5";
+ samsung,pin-function = <2>;
+ };
+
+ sd0_cmd: sd0-cmd {
+ samsung,pins = "gpe-6";
+ samsung,pin-function = <2>;
+ };
+
+ sd0_bus1: sd0-bus1 {
+ samsung,pins = "gpe-7";
+ samsung,pin-function = <2>;
+ };
+
+ sd0_bus4: sd0-bus4 {
+ samsung,pins = "gpe-8", "gpe-9", "gpe-10";
+ samsung,pin-function = <2>;
+ };
+
+ sd1_cmd: sd1-cmd {
+ samsung,pins = "gpl-8";
+ samsung,pin-function = <2>;
+ };
+
+ sd1_clk: sd1-clk {
+ samsung,pins = "gpl-9";
+ samsung,pin-function = <2>;
+ };
+
+ sd1_bus1: sd1-bus1 {
+ samsung,pins = "gpl-0";
+ samsung,pin-function = <2>;
+ };
+
+ sd1_bus4: sd1-bus4 {
+ samsung,pins = "gpl-1", "gpl-2", "gpl-3";
+ samsung,pin-function = <2>;
+ };
+};
diff --git a/arch/arm/boot/dts/s3c2416-smdk2416.dts b/arch/arm/boot/dts/s3c2416-smdk2416.dts
new file mode 100644
index 0000000..ad1dd09
--- /dev/null
+++ b/arch/arm/boot/dts/s3c2416-smdk2416.dts
@@ -0,0 +1,72 @@
+/*
+ * SAMSUNG SMDK2416 board device tree source
+ *
+ * Copyright (c) 2013 Heiko Stuebner <heiko at sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/dts-v1/;
+/include/ "s3c2416.dtsi"
+
+/ {
+ model = "SMDK2416";
+ compatible = "samsung,s3c2416";
+
+ memory {
+ reg = <0x30000000 0x4000000>;
+ };
+
+ serial at 50000000 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_data>, <&uart0_fctl>;
+ };
+
+ serial at 50004000 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_data>, <&uart1_fctl>;
+ };
+
+ serial at 50008000 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_data>;
+ };
+
+ serial at 5000C000 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_data>;
+ };
+
+ watchdog at 53000000 {
+ status = "okay";
+ };
+
+ rtc at 57000000 {
+ status = "okay";
+ };
+
+ sdhci at 4AC00000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sd0_clk>, <&sd0_cmd>,
+ <&sd0_bus1>, <&sd0_bus4>;
+ bus-width = <4>;
+ cd-gpios = <&gpf 1 0>;
+ cd-inverted;
+ status = "okay";
+ };
+
+ sdhci at 4A800000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sd1_clk>, <&sd1_cmd>,
+ <&sd1_bus1>, <&sd1_bus4>;
+ bus-width = <4>;
+ broken-cd;
+ status = "okay";
+ };
+};
diff --git a/arch/arm/boot/dts/s3c2416.dtsi b/arch/arm/boot/dts/s3c2416.dtsi
new file mode 100644
index 0000000..6809324
--- /dev/null
+++ b/arch/arm/boot/dts/s3c2416.dtsi
@@ -0,0 +1,79 @@
+/*
+ * Samsung's S3C2416 SoC device tree source
+ *
+ * Copyright (c) 2013 Heiko Stuebner <heiko at sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/include/ "s3c24xx.dtsi"
+/include/ "s3c2416-pinctrl.dtsi"
+
+/ {
+ model = "Samsung S3C2416 SoC";
+ compatible = "samsung,s3c2416";
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu {
+ compatible = "arm,arm926ejs";
+ };
+ };
+
+ interrupt-controller at 4a000000 {
+ compatible = "samsung,s3c2416-irq";
+ };
+
+ pinctrl at 56000000 {
+ compatible = "samsung,s3c2416-pinctrl";
+ };
+
+ serial at 50000000 {
+ compatible = "samsung,s3c2440-uart";
+ };
+
+ serial at 50004000 {
+ compatible = "samsung,s3c2440-uart";
+ };
+
+ serial at 50008000 {
+ compatible = "samsung,s3c2440-uart";
+ };
+
+ serial at 5000C000 {
+ compatible = "samsung,s3c2440-uart";
+ reg = <0x5000C000 0x4000>;
+ interrupts = <1 18 24 4>, <1 18 25 4>;
+ status = "disabled";
+ };
+
+ sdhci at 4AC00000 {
+ compatible = "samsung,s3c6410-sdhci";
+ reg = <0x4AC00000 0x100>;
+ interrupts = <0 0 21 3>;
+ status = "disabled";
+ };
+
+ sdhci at 4A800000 {
+ compatible = "samsung,s3c6410-sdhci";
+ reg = <0x4A800000 0x100>;
+ interrupts = <0 0 20 3>;
+ status = "disabled";
+ };
+
+ watchdog at 53000000 {
+ interrupts = <1 9 27 3>;
+ };
+
+ rtc at 57000000 {
+ compatible = "samsung,s3c2416-rtc";
+ };
+
+ i2c at 54000000 {
+ compatible = "samsung,s3c2440-i2c";
+ };
+};
diff --git a/arch/arm/boot/dts/s3c24xx.dtsi b/arch/arm/boot/dts/s3c24xx.dtsi
new file mode 100644
index 0000000..cab46ff
--- /dev/null
+++ b/arch/arm/boot/dts/s3c24xx.dtsi
@@ -0,0 +1,92 @@
+/*
+ * Samsung's S3C24XX family device tree source
+ *
+ * Copyright (c) 2013 Heiko Stuebner <heiko at sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/include/ "skeleton.dtsi"
+
+/ {
+ compatible = "samsung,s3c24xx";
+ interrupt-parent = <&intc>;
+
+ aliases {
+ pinctrl0 = &pinctrl_0;
+ };
+
+ intc:interrupt-controller at 4a000000 {
+ compatible = "samsung,s3c2410-irq";
+ reg = <0x4a000000 0x100>;
+ interrupt-controller;
+ #interrupt-cells = <4>;
+ };
+
+ pinctrl_0: pinctrl at 56000000 {
+ reg = <0x56000000 0x1000>;
+
+ wakeup-interrupt-controller {
+ compatible = "samsung,s3c2410-wakeup-eint";
+ interrupts = <0 0 0 3>,
+ <0 0 1 3>,
+ <0 0 2 3>,
+ <0 0 3 3>,
+ <0 0 4 4>,
+ <0 0 5 4>;
+ };
+ };
+
+ timer at 51000000 {
+ compatible = "samsung,s3c2410-pwm";
+ reg = <0x51000000 0x1000>;
+ interrupts = <0 0 10 3>, <0 0 11 3>, <0 0 12 3>, <0 0 13 3>, <0 0 14 3>;
+ #pwm-cells = <4>;
+ };
+
+ serial at 50000000 {
+ compatible = "samsung,s3c2410-uart";
+ reg = <0x50000000 0x4000>;
+ interrupts = <1 28 0 4>, <1 28 1 4>;
+ status = "disabled";
+ };
+
+ serial at 50004000 {
+ compatible = "samsung,s3c2410-uart";
+ reg = <0x50004000 0x4000>;
+ interrupts = <1 23 3 4>, <1 23 4 4>;
+ status = "disabled";
+ };
+
+ serial at 50008000 {
+ compatible = "samsung,s3c2410-uart";
+ reg = <0x50008000 0x4000>;
+ interrupts = <1 15 6 4>, <1 15 7 4>;
+ status = "disabled";
+ };
+
+ watchdog at 53000000 {
+ compatible = "samsung,s3c2410-wdt";
+ reg = <0x53000000 0x100>;
+ interrupts = <0 0 9 3>;
+ status = "disabled";
+ };
+
+ rtc at 57000000 {
+ compatible = "samsung,s3c2410-rtc";
+ reg = <0x57000000 0x100>;
+ interrupts = <0 0 30 3>, <0 0 8 3>;
+ status = "disabled";
+ };
+
+ i2c at 54000000 {
+ compatible = "samsung,s3c2410-i2c";
+ reg = <0x54000000 0x100>;
+ interrupts = <0 0 27 3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+};
diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index 0a8663c..f842e3e 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -496,6 +496,18 @@ config MACH_SMDK2416
help
Say Y here if you are using an SMDK2416
+config MACH_S3C2416_DT
+ bool "Samsung S3C2416 machine using devicetree"
+ select CLKSRC_OF
+ select USE_OF
+ select PINCTRL
+ select PINCTRL_S3C24XX
+ help
+ Machine support for Samsung S3C2416 machines with device tree enabled.
+ Select this if a fdt blob is available for the S3C2416 SoC based board.
+ Note: This is under development and not all peripherals can be supported
+ with this machine file.
+
endif # CPU_S3C2416
if CPU_S3C2440
diff --git a/arch/arm/mach-s3c24xx/Makefile b/arch/arm/mach-s3c24xx/Makefile
index 6f46ecf..6de730b 100644
--- a/arch/arm/mach-s3c24xx/Makefile
+++ b/arch/arm/mach-s3c24xx/Makefile
@@ -85,6 +85,7 @@ obj-$(CONFIG_MACH_SMDK2413) += mach-smdk2413.o
obj-$(CONFIG_MACH_VSTMS) += mach-vstms.o
obj-$(CONFIG_MACH_SMDK2416) += mach-smdk2416.o
+obj-$(CONFIG_MACH_S3C2416_DT) += mach-s3c2416-dt.o
obj-$(CONFIG_MACH_ANUBIS) += mach-anubis.o
obj-$(CONFIG_MACH_AT2440EVB) += mach-at2440evb.o
diff --git a/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c b/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c
new file mode 100644
index 0000000..f5c9072
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c
@@ -0,0 +1,91 @@
+/*
+ * Samsung's S3C2416 flattened device tree enabled machine
+ *
+ * Copyright (c) 2012 Heiko Stuebner <heiko at sntech.de>
+ *
+ * based on mach-exynos/mach-exynos4-dt.c
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Copyright (c) 2010-2011 Linaro Ltd.
+ * www.linaro.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/clocksource.h>
+#include <linux/irqchip.h>
+#include <linux/of_platform.h>
+#include <linux/serial_core.h>
+
+#include <asm/mach/arch.h>
+#include <mach/map.h>
+
+#include <plat/cpu.h>
+#include <plat/pm.h>
+#include <plat/regs-serial.h>
+
+#include "common.h"
+
+/*
+ * The following lookup table is used to override device names when devices
+ * are registered from device tree. This is temporarily added to enable
+ * device tree support addition for the S3C2416 architecture.
+ *
+ * For drivers that require platform data to be provided from the machine
+ * file, a platform data pointer can also be supplied along with the
+ * devices names. Usually, the platform data elements that cannot be parsed
+ * from the device tree by the drivers (example: function pointers) are
+ * supplied. But it should be noted that this is a temporary mechanism and
+ * at some point, the drivers should be capable of parsing all the platform
+ * data from the device tree.
+ */
+static const struct of_dev_auxdata s3c2416_auxdata_lookup[] __initconst = {
+ OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C2410_PA_UART0,
+ "s3c2440-uart.0", NULL),
+ OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C2410_PA_UART1,
+ "s3c2440-uart.1", NULL),
+ OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C2410_PA_UART2,
+ "s3c2440-uart.2", NULL),
+ OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C2443_PA_UART3,
+ "s3c2440-uart.3", NULL),
+ OF_DEV_AUXDATA("samsung,s3c6410-sdhci", S3C_PA_HSMMC0,
+ "s3c-sdhci.0", NULL),
+ OF_DEV_AUXDATA("samsung,s3c6410-sdhci", S3C_PA_HSMMC1,
+ "s3c-sdhci.1", NULL),
+ OF_DEV_AUXDATA("samsung,s3c2440-i2c", S3C_PA_IIC,
+ "s3c2440-i2c.0", NULL),
+ {},
+};
+
+static void __init s3c2416_dt_map_io(void)
+{
+ s3c24xx_init_io(NULL, 0);
+ s3c24xx_init_clocks(12000000);
+}
+
+static void __init s3c2416_dt_machine_init(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table,
+ s3c2416_auxdata_lookup, NULL);
+
+ s3c_pm_init();
+}
+
+static char const *s3c2416_dt_compat[] __initdata = {
+ "samsung,s3c2416",
+ "samsung,s3c2450",
+ NULL
+};
+
+DT_MACHINE_START(S3C2416_DT, "Samsung S3C2416 (Flattened Device Tree)")
+ /* Maintainer: Heiko Stuebner <heiko at sntech.de> */
+ .dt_compat = s3c2416_dt_compat,
+ .map_io = s3c2416_dt_map_io,
+ .init_irq = irqchip_init,
+ .init_machine = s3c2416_dt_machine_init,
+ .init_time = clocksource_of_init,
+ .restart = s3c2416_restart,
+MACHINE_END
--
1.7.2.3
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