2 * Samsung's EXYNOS4 flattened device tree enabled machine
4 * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com
6 * Copyright (c) 2010-2011 Linaro Ltd.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 #include <linux/of_platform.h>
15 #include <linux/serial_core.h>
17 #include <asm/mach/arch.h>
21 #include <plat/regs-serial.h>
26 * The following lookup table is used to override device names when devices
27 * are registered from device tree. This is temporarily added to enable
28 * device tree support addition for the Exynos4 architecture.
30 * For drivers that require platform data to be provided from the machine
31 * file, a platform data pointer can also be supplied along with the
32 * devices names. Usually, the platform data elements that cannot be parsed
33 * from the device tree by the drivers (example: function pointers) are
34 * supplied. But it should be noted that this is a temporary mechanism and
35 * at some point, the drivers should be capable of parsing all the platform
36 * data from the device tree.
38 static const struct of_dev_auxdata exynos4_auxdata_lookup
[] __initconst
= {
39 OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_PA_UART0
,
40 "exynos4210-uart.0", NULL
),
41 OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_PA_UART1
,
42 "exynos4210-uart.1", NULL
),
43 OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_PA_UART2
,
44 "exynos4210-uart.2", NULL
),
45 OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_PA_UART3
,
46 "exynos4210-uart.3", NULL
),
47 OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(0),
48 "exynos4-sdhci.0", NULL
),
49 OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(1),
50 "exynos4-sdhci.1", NULL
),
51 OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(2),
52 "exynos4-sdhci.2", NULL
),
53 OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(3),
54 "exynos4-sdhci.3", NULL
),
55 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(0),
56 "s3c2440-i2c.0", NULL
),
57 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(1),
58 "s3c2440-i2c.1", NULL
),
59 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(2),
60 "s3c2440-i2c.2", NULL
),
61 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(3),
62 "s3c2440-i2c.3", NULL
),
63 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(4),
64 "s3c2440-i2c.4", NULL
),
65 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(5),
66 "s3c2440-i2c.5", NULL
),
67 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(6),
68 "s3c2440-i2c.6", NULL
),
69 OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(7),
70 "s3c2440-i2c.7", NULL
),
71 OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS4_PA_SPI0
,
72 "exynos4210-spi.0", NULL
),
73 OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS4_PA_SPI1
,
74 "exynos4210-spi.1", NULL
),
75 OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS4_PA_SPI2
,
76 "exynos4210-spi.2", NULL
),
77 OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA0
, "dma-pl330.0", NULL
),
78 OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA1
, "dma-pl330.1", NULL
),
79 OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_MDMA1
, "dma-pl330.2", NULL
),
80 OF_DEV_AUXDATA("samsung,exynos4210-tmu", EXYNOS4_PA_TMU
,
82 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13620000,
83 "exynos-sysmmu.0", NULL
), /* MFC_L */
84 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13630000,
85 "exynos-sysmmu.1", NULL
), /* MFC_R */
86 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13E20000,
87 "exynos-sysmmu.2", NULL
), /* TV */
88 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A60000,
89 "exynos-sysmmu.3", NULL
), /* JPEG */
90 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12A30000,
91 "exynos-sysmmu.4", NULL
), /* ROTATOR */
92 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A20000,
93 "exynos-sysmmu.5", NULL
), /* FIMC0 */
94 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A30000,
95 "exynos-sysmmu.6", NULL
), /* FIMC1 */
96 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A40000,
97 "exynos-sysmmu.7", NULL
), /* FIMC2 */
98 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A50000,
99 "exynos-sysmmu.8", NULL
), /* FIMC3 */
100 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12A20000,
101 "exynos-sysmmu.9", NULL
), /* G2D(4210) */
102 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x10A40000,
103 "exynos-sysmmu.9", NULL
), /* G2D(4x12) */
104 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11E20000,
105 "exynos-sysmmu.10", NULL
), /* FIMD0 */
106 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12220000,
107 "exynos-sysmmu.11", NULL
), /* FIMD1(4210) */
108 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12260000,
109 "exynos-sysmmu.12", NULL
), /* IS0(4x12) */
110 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x122B0000,
111 "exynos-sysmmu.13", NULL
), /* IS1(4x12) */
112 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x123B0000,
113 "exynos-sysmmu.14", NULL
), /* FIMC-LITE0(4x12) */
114 OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x123C0000,
115 "exynos-sysmmu.15", NULL
), /* FIMC-LITE1(4x12) */
119 static void __init
exynos4_dt_map_io(void)
121 exynos_init_io(NULL
, 0);
122 s3c24xx_init_clocks(24000000);
125 static void __init
exynos4_dt_machine_init(void)
127 of_platform_populate(NULL
, of_default_bus_match_table
,
128 exynos4_auxdata_lookup
, NULL
);
131 static char const *exynos4_dt_compat
[] __initdata
= {
132 "samsung,exynos4210",
133 "samsung,exynos4212",
134 "samsung,exynos4412",
138 DT_MACHINE_START(EXYNOS4210_DT
, "Samsung Exynos4 (Flattened Device Tree)")
139 /* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
140 .smp
= smp_ops(exynos_smp_ops
),
141 .init_irq
= exynos4_init_irq
,
142 .map_io
= exynos4_dt_map_io
,
143 .init_machine
= exynos4_dt_machine_init
,
144 .init_late
= exynos_init_late
,
145 .init_time
= exynos4_timer_init
,
146 .dt_compat
= exynos4_dt_compat
,
147 .restart
= exynos4_restart
,