1/*
 2 * SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine
 3 *
 4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
 5 *		http://www.samsung.com
 6 *
 7 * This program is free software; you can redistribute it and/or modify
 8 * it under the terms of the GNU General Public License version 2 as
 9 * published by the Free Software Foundation.
10*/
11
12#include <linux/of_platform.h>
13#include <linux/serial_core.h>
14
15#include <asm/mach/arch.h>
16#include <asm/hardware/gic.h>
17#include <mach/map.h>
18
19#include <plat/cpu.h>
20#include <plat/regs-serial.h>
21
22#include "common.h"
23
24/*
25 * The following lookup table is used to override device names when devices
26 * are registered from device tree. This is temporarily added to enable
27 * device tree support addition for the EXYNOS5 architecture.
28 *
29 * For drivers that require platform data to be provided from the machine
30 * file, a platform data pointer can also be supplied along with the
31 * devices names. Usually, the platform data elements that cannot be parsed
32 * from the device tree by the drivers (example: function pointers) are
33 * supplied. But it should be noted that this is a temporary mechanism and
34 * at some point, the drivers should be capable of parsing all the platform
35 * data from the device tree.
36 */
37static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
38	OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART0,
39				"exynos4210-uart.0", NULL),
40	OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART1,
41				"exynos4210-uart.1", NULL),
42	OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART2,
43				"exynos4210-uart.2", NULL),
44	OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS5_PA_UART3,
45				"exynos4210-uart.3", NULL),
46	OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(0),
47				"s3c2440-i2c.0", NULL),
48	OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS5_PA_IIC(1),
49				"s3c2440-i2c.1", NULL),
50	OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0, "dma-pl330.0", NULL),
51	OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.1", NULL),
52	OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1, "dma-pl330.2", NULL),
53	{},
54};
55
56static void __init exynos5250_dt_map_io(void)
57{
58	exynos_init_io(NULL, 0);
59	s3c24xx_init_clocks(24000000);
60}
61
62static void __init exynos5250_dt_machine_init(void)
63{
64	of_platform_populate(NULL, of_default_bus_match_table,
65				exynos5250_auxdata_lookup, NULL);
66}
67
68static char const *exynos5250_dt_compat[] __initdata = {
69	"samsung,exynos5250",
70	NULL
71};
72
73DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
74	/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
75	.init_irq	= exynos5_init_irq,
76	.map_io		= exynos5250_dt_map_io,
77	.handle_irq	= gic_handle_irq,
78	.init_machine	= exynos5250_dt_machine_init,
79	.init_late	= exynos_init_late,
80	.timer		= &exynos4_timer,
81	.dt_compat	= exynos5250_dt_compat,
82	.restart        = exynos5_restart,
83MACHINE_END