From 35aca36450e6c3fb3b3fe9ea60a7c4689a219a87 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Tue, 21 May 2013 01:06:04 +0900 Subject: ARM: dts: add devicetree support for s3c2416-smdk2416 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 Reviewed-by: Sylwester Nawrocki Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c24xx/Kconfig | 12 +++++ arch/arm/mach-s3c24xx/Makefile | 1 + arch/arm/mach-s3c24xx/mach-s3c2416-dt.c | 91 +++++++++++++++++++++++++++++++++ 3 files changed, 104 insertions(+) create mode 100644 arch/arm/mach-s3c24xx/mach-s3c2416-dt.c (limited to 'arch/arm/mach-s3c24xx') diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig index f2f7088..e52d5e4 100644 --- a/arch/arm/mach-s3c24xx/Kconfig +++ b/arch/arm/mach-s3c24xx/Kconfig @@ -490,6 +490,18 @@ 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 + * + * 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 +#include +#include +#include + +#include +#include + +#include +#include +#include + +#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 */ + .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 -- cgit v1.1 From 52c76e44f1b8e63474b9ef5455f657c13e983e95 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Wed, 19 Jun 2013 02:40:18 +0900 Subject: ARM: S3C24XX: update uart addresses in s3c2416-dt auxdata Commit 9ee51f01eee8 (tty: serial/samsung: make register definitions global) removed the S3C2410_PA_UARTX defines that the newly merged s3c2416 dt support still expected. So update mach-s3c2416-dt.c to use the S3C24XX_PA_UART constant until we have support for the common clock framework the the s3c2416-dt. Signed-off-by: Heiko Stuebner Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c24xx/mach-s3c2416-dt.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/arm/mach-s3c24xx') diff --git a/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c b/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c index f5c9072..f50454a 100644 --- a/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c +++ b/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c @@ -43,13 +43,13 @@ * data from the device tree. */ static const struct of_dev_auxdata s3c2416_auxdata_lookup[] __initconst = { - OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C2410_PA_UART0, + OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C24XX_PA_UART, "s3c2440-uart.0", NULL), - OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C2410_PA_UART1, + OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C24XX_PA_UART + 0x4000, "s3c2440-uart.1", NULL), - OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C2410_PA_UART2, + OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C24XX_PA_UART + 0x8000, "s3c2440-uart.2", NULL), - OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C2443_PA_UART3, + OF_DEV_AUXDATA("samsung,s3c2440-uart", S3C24XX_PA_UART + 0xC000, "s3c2440-uart.3", NULL), OF_DEV_AUXDATA("samsung,s3c6410-sdhci", S3C_PA_HSMMC0, "s3c-sdhci.0", NULL), -- cgit v1.1