Commit 6b5ab4f4 authored by Thomas Abraham's avatar Thomas Abraham Committed by Kukjin Kim

ARM: EXYNOS: Add Exynos4 device tree enabled board file

Add a new EXYNOS4 compatible device tree enabled board file. Boards
based on the EXYNOS4 family of SoC's can use this as the machine/board
file. When using this machine fike, a corresponding device tree blob
which describes the board's properties should be supplied at boot time
to the kernel.
Signed-off-by: default avatarThomas Abraham <thomas.abraham@linaro.org>
Acked-by: default avatarGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 39ce4084
* Insignal's Exynos4210 based Origen evaluation board
Origen low-cost evaluation board is based on Samsung's Exynos4210 SoC.
Required root node properties:
- compatible = should be one or more of the following.
(a) "samsung,smdkv310" - for Samsung's SMDKV310 eval board.
(b) "samsung,exynos4210" - for boards based on Exynos4210 SoC.
* Samsung's Exynos4210 based SMDKV310 evaluation board
SMDKV310 evaluation board is based on Samsung's Exynos4210 SoC.
Required root node properties:
- compatible = should be one or more of the following.
(a) "samsung,smdkv310" - for Samsung's SMDKV310 eval board.
(b) "samsung,exynos4210" - for boards based on Exynos4210 SoC.
......@@ -337,6 +337,20 @@ config MACH_SMDK4412
Machine support for Samsung SMDK4412
endif
comment "Flattened Device Tree based board for Exynos4 based SoC"
config MACH_EXYNOS4_DT
bool "Samsung Exynos4 Machine using device tree"
select CPU_EXYNOS4210
select USE_OF
select ARM_AMBA
select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD
help
Machine support for Samsung Exynos4 machine with device tree enabled.
Select this if a fdt blob is available for the Exynos4 SoC based board.
Note: This is under development and not all peripherals can be supported
with this machine file.
if ARCH_EXYNOS4
comment "Configuration for HSMMC 8-bit bus width"
......
......@@ -37,6 +37,8 @@ obj-$(CONFIG_MACH_ORIGEN) += mach-origen.o
obj-$(CONFIG_MACH_SMDK4212) += mach-smdk4x12.o
obj-$(CONFIG_MACH_SMDK4412) += mach-smdk4x12.o
obj-$(CONFIG_MACH_EXYNOS4_DT) += mach-exynos4-dt.o
# device support
obj-$(CONFIG_ARCH_EXYNOS4) += dev-audio.o
......
/*
* Samsung's Exynos4210 flattened device tree enabled machine
*
* 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 exynos4210_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 exynos4210_dt_map_io(void)
{
s5p_init_io(NULL, 0, S5P_VA_CHIPID);
s3c24xx_init_clocks(24000000);
}
static void __init exynos4210_dt_machine_init(void)
{
of_platform_populate(NULL, of_default_bus_match_table,
exynos4210_auxdata_lookup, NULL);
}
static char const *exynos4210_dt_compat[] __initdata = {
"samsung,exynos4210",
NULL
};
DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
/* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
.init_irq = exynos4_init_irq,
.map_io = exynos4210_dt_map_io,
.init_machine = exynos4210_dt_machine_init,
.timer = &exynos4_timer,
.dt_compat = exynos4210_dt_compat,
MACHINE_END
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