S3C2416: add basic devictree support
From: Heiko Stuebner <heiko.stuebner@...> Date: Tue, 17 Jan 2012 15:07:00 +0100
Commit-Message
Signed-off-by: Heiko Stuebner <heiko@...>
Patch-Comment
arch/arm/boot/dts/s3c2416.dtsi | 192 +++++++++++++++++++++++++++++++ arch/arm/mach-s3c2416/mach-s3c2416-dt.c | 90 ++++++++++++++ 2 files changed, 282 insertions(+), 0 deletions(-) create mode 100644 arch/arm/boot/dts/s3c2416.dtsi create mode 100644 arch/arm/mach-s3c2416/mach-s3c2416-dt.c
Statistics
- 282 lines added
- 0 lines removed
Changes
------------------------ arch/arm/boot/dts/s3c2416.dtsi ------------------------
new file mode 100644
index 0000000..76cc0b2
@@ -0,0 +1,192 @@
+/*
+ * Samsung's S3C2416 SoC device tree source
+ *
+ * Copyright (c) 2012 Heiko Stuebner <heiko@sntech.de>
+ *
+ * based on exynos4210.dtsi
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Copyright (c) 2010-2011 Linaro Ltd.
+ * www.linaro.org
+ *
+ * Samsung's Exynos4210 SoC device nodes are listed in this file. Exynos4210
+ * based board files can include this file and provide values for board specfic
+ * bindings.
+ *
+ * Note: This file does not include device nodes for all the controllers in
+ * Exynos4210 SoC. As device tree coverage for Exynos4210 increases, additional
+ * nodes can be added to this file.
+ *
+ * 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,s3c2416";
+/* interrupt-parent = <&gic>; FIXME*/
+
+/* gic:interrupt-controller@10490000 {
+ compatible = "arm,cortex-a9-gic";
+ #interrupt-cells = <3>;
+ interrupt-controller;
+ reg = <0x10490000 0x1000>, <0x10480000 0x100>;
+ }; FIXME*/
+
+ /* necessary? */
+ cpus {
+ cpu@0 {
+ compatible = "arm,arm926ejs";
+ }
+ },
+
+ watchdog@53000000 {
+ compatible = "samsung,s3c2410-wdt";
+ reg = <0x53000000 0x100>;
+ interrupts = <25>;
+ };
+
+ rtc@57000000 {
+ compatible = "samsung,s3c2416-rtc";
+ reg = <0x57000000 0x100>;
+ interrupts = <46>, <24>;
+ };
+
+ /* hsmmc0 */
+ sdhci@4AC00000 {
+ compatible = "samsung,s3c-sdhci";
+ reg = <0x4AC00000 0x100>;
+ interrupts = <37>;
+ };
+
+ /* hsmmc1 */
+ sdhci@4A800000 {
+ compatible = "samsung,s3c-sdhci";
+ reg = <0x4A800000 0x100>;
+ interrupts = <36>;
+ };
+
+ /* uart0 */
+ serial@13800000 {
+ compatible = "samsung,s3c2440-uart";
+ reg = <0x50000000 0x3fff>;
+ interrupts = <70>;
+ };
+
+ /* uart1 */
+ serial@13810000 {
+ compatible = "samsung,s3c2440-uart";
+ reg = <0x50004000 0x3fff>;
+ interrupts = <73>;
+ };
+
+ /* uart2 */
+ serial@13820000 {
+ compatible = "samsung,s3c2440-uart";
+ reg = <0x50008000 0x3fff>;
+ interrupts = <76>;
+ };
+
+ /* uart3 */
+ serial@13820000 {
+ compatible = "samsung,s3c2440-uart";
+ reg = <0x5000C000 0x3fff>;
+ interrupts = <94>;
+ };
+
+ i2c@54000000 {
+ compatible = "samsung,s3c2440-i2c";
+ reg = <0x54000000 0x100>;
+ interrupts = <43>;
+ };
+
+ /* only on s3c2450 */
+ i2c@54000100 {
+ compatible = "samsung,s3c2440-i2c";
+ reg = <0x54000100 0x100>;
+ interrupts = <100>;
+ };
+
+ gpio-controllers {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ gpio-controller;
+ ranges;
+
+ gpa: gpio-controller@56000000 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x56000000 0x10>;
+ #gpio-cells = <3>;
+ };
+
+ gpb: gpio-controller@56000010 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x56000010 0x10>;
+ #gpio-cells = <3>;
+ };
+
+ gpc: gpio-controller@56000020 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x56000020 0x10>;
+ #gpio-cells = <3>;
+ };
+
+ gpd: gpio-controller@56000030 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x56000030 0x10>;
+ #gpio-cells = <3>;
+ };
+
+ gpe: gpio-controller@56000040 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x56000040 0x10>;
+ #gpio-cells = <3>;
+ };
+
+ gpf: gpio-controller@56000050 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x56000050 0x10>;
+ #gpio-cells = <3>;
+ };
+
+ gpg: gpio-controller@56000060 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x56000060 0x10>;
+ #gpio-cells = <3>;
+ };
+
+ gph: gpio-controller@56000070 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x56000070 0x10>;
+ #gpio-cells = <3>;
+ };
+
+ /* s3c2443 and later */
+ gpj: gpio-controller@560000D0 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x560000D0 0x10>;
+ #gpio-cells = <3>;
+ };
+
+ gpk: gpio-controller@560000E0 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x560000E0 0x10>;
+ #gpio-cells = <3>;
+ };
+
+ gpl: gpio-controller@560000F0 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x560000F0 0x10>;
+ #gpio-cells = <3>;
+ };
+
+ gpm: gpio-controller@56000100 {
+ compatible = "samsung,s3c24xx-gpio";
+ reg = <0x56000100 0x10>;
+ #gpio-cells = <3>;
+ };
+ };
+};
------------------- arch/arm/mach-s3c2416/mach-s3c2416-dt.c --------------------
new file mode 100644
index 0000000..7415bee
@@ -0,0 +1,90 @@
+/*
+ * Samsung's S3C2416 flattened device tree enabled machine
+ *
+ * Copyright (c) 2012 Heiko Stuebner <heiko@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/of_platform.h>
+#include <linux/serial_core.h>
+
+#include <asm/mach/arch.h>
+#include <mach/map.h>
+
+//#include <plat/cpu.h>
+//#include <plat/regs-serial.h>
+//#include <plat/exynos4.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 Exynos4 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,exynos4210-uart", S5P_PA_UART0,
+ "exynos4210-uart.0", NULL),
+ OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART1,
+ "exynos4210-uart.1", NULL),
+ OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART2,
+ "exynos4210-uart.2", NULL),
+ OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART3,
+ "exynos4210-uart.3", NULL),
+ OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(0),
+ "exynos4-sdhci.0", NULL),
+ OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(1),
+ "exynos4-sdhci.1", NULL),
+ OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(2),
+ "exynos4-sdhci.2", NULL),
+ OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(3),
+ "exynos4-sdhci.3", NULL),
+ OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(0),
+ "s3c2440-i2c.0", NULL),
+ OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA0, "dma-pl330.0", NULL),
+ OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA1, "dma-pl330.1", NULL),*/
+ {},
+};
+
+static void __init s3c2416_dt_map_io(void)
+{
+ s3c24xx_init_io(NULL, 0);
+ s3c24xx_init_clocks(12000000);
+ s3c24xx_init_uarts(smdk2416_uartcfgs, ARRAY_SIZE(smdk2416_uartcfgs));
+}
+
+static void __init s3c2416_dt_machine_init(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table,
+ s3c2416_auxdata_lookup, NULL);
+}
+
+static char const *s3c2416_dt_compat[] __initdata = {
+ "samsung,s3c2416",
+ NULL
+};
+
+DT_MACHINE_START(S3C2416_DT, "Samsung S3C2416 (Flattened Device Tree)")
+ /* Maintainer: Heiko Stuebner <heiko@sntech.de> */
+ .init_irq = s3c24xx_init_irq,
+ .map_io = s3c2416_dt_map_io,
+ .init_machine = s3c2416_dt_machine_init,
+ .timer = &s3c24xx_timer,
+ .dt_compat = s3c2416_dt_compat,
+MACHINE_END