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/*
* Samsung's EXYNOS4 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/of_fdt.h>
#include <linux/serial_core.h>
#include <linux/memblock.h>
#include <linux/clocksource.h>
#include <asm/mach/arch.h>
#include <mach/map.h>
#include <plat/cpu.h>
#include <plat/regs-serial.h>
#include <plat/mfc.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 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 exynos4_auxdata_lookup[] __initconst = {
OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_PA_UART0,
"exynos4210-uart.0", NULL),
OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_PA_UART1,
"exynos4210-uart.1", NULL),
OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_PA_UART2,
"exynos4210-uart.2", NULL),
OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_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("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(1),
"s3c2440-i2c.1", NULL),
OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(2),
"s3c2440-i2c.2", NULL),
OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(3),
"s3c2440-i2c.3", NULL),
OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(4),
"s3c2440-i2c.4", NULL),
OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(5),
"s3c2440-i2c.5", NULL),
OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(6),
"s3c2440-i2c.6", NULL),
OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(7),
"s3c2440-i2c.7", NULL),
OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS4_PA_SPI0,
"exynos4210-spi.0", NULL),
OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS4_PA_SPI1,
"exynos4210-spi.1", NULL),
OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS4_PA_SPI2,
"exynos4210-spi.2", 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),
OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_MDMA1, "dma-pl330.2", NULL),
OF_DEV_AUXDATA("samsung,exynos4210-tmu", EXYNOS4_PA_TMU,
"exynos-tmu", NULL),
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13620000,
"exynos-sysmmu.0", NULL), /* MFC_L */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13630000,
"exynos-sysmmu.1", NULL), /* MFC_R */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13E20000,
"exynos-sysmmu.2", NULL), /* TV */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A60000,
"exynos-sysmmu.3", NULL), /* JPEG */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12A30000,
"exynos-sysmmu.4", NULL), /* ROTATOR */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A20000,
"exynos-sysmmu.5", NULL), /* FIMC0 */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A30000,
"exynos-sysmmu.6", NULL), /* FIMC1 */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A40000,
"exynos-sysmmu.7", NULL), /* FIMC2 */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A50000,
"exynos-sysmmu.8", NULL), /* FIMC3 */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12A20000,
"exynos-sysmmu.9", NULL), /* G2D(4210) */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x10A40000,
"exynos-sysmmu.9", NULL), /* G2D(4x12) */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11E20000,
"exynos-sysmmu.10", NULL), /* FIMD0 */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12220000,
"exynos-sysmmu.11", NULL), /* FIMD1(4210) */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12260000,
"exynos-sysmmu.12", NULL), /* IS0(4x12) */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x122B0000,
"exynos-sysmmu.13", NULL), /* IS1(4x12) */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x123B0000,
"exynos-sysmmu.14", NULL), /* FIMC-LITE0(4x12) */
OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x123C0000,
"exynos-sysmmu.15", NULL), /* FIMC-LITE1(4x12) */
OF_DEV_AUXDATA("samsung,mfc-v5", 0x13400000, "s5p-mfc", NULL),
{},
};
static void __init exynos4_dt_map_io(void)
{
exynos_init_io(NULL, 0);
s3c24xx_init_clocks(24000000);
}
static void __init exynos4_dt_machine_init(void)
{
of_platform_populate(NULL, of_default_bus_match_table,
exynos4_auxdata_lookup, NULL);
}
static char const *exynos4_dt_compat[] __initdata = {
"samsung,exynos4210",
"samsung,exynos4212",
"samsung,exynos4412",
NULL
};
static void __init exynos4_reserve(void)
{
#ifdef CONFIG_S5P_DEV_MFC
struct s5p_mfc_dt_meminfo mfc_mem;
/* Reserve memory for MFC only if it's available */
mfc_mem.compatible = "samsung,mfc-v5";
if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem))
s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff,
mfc_mem.lsize);
#endif
}
DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
/* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
.smp = smp_ops(exynos_smp_ops),
.init_irq = exynos4_init_irq,
.map_io = exynos4_dt_map_io,
.init_machine = exynos4_dt_machine_init,
.init_late = exynos_init_late,
.init_time = clocksource_of_init,
.dt_compat = exynos4_dt_compat,
.restart = exynos4_restart,
.reserve = exynos4_reserve,
MACHINE_END
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