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6b5ab4f4 TA |
1 | /* |
2 | * Samsung's Exynos4210 flattened device tree enabled machine | |
3 | * | |
4 | * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com | |
6 | * Copyright (c) 2010-2011 Linaro Ltd. | |
7 | * www.linaro.org | |
8 | * | |
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. | |
12 | */ | |
13 | ||
14 | #include <linux/of_platform.h> | |
15 | #include <linux/serial_core.h> | |
16 | ||
17 | #include <asm/mach/arch.h> | |
35bded8f | 18 | #include <asm/hardware/gic.h> |
6b5ab4f4 TA |
19 | #include <mach/map.h> |
20 | ||
21 | #include <plat/cpu.h> | |
22 | #include <plat/regs-serial.h> | |
35bded8f KL |
23 | |
24 | #include "common.h" | |
6b5ab4f4 TA |
25 | |
26 | /* | |
27 | * The following lookup table is used to override device names when devices | |
28 | * are registered from device tree. This is temporarily added to enable | |
29 | * device tree support addition for the Exynos4 architecture. | |
30 | * | |
31 | * For drivers that require platform data to be provided from the machine | |
32 | * file, a platform data pointer can also be supplied along with the | |
33 | * devices names. Usually, the platform data elements that cannot be parsed | |
34 | * from the device tree by the drivers (example: function pointers) are | |
35 | * supplied. But it should be noted that this is a temporary mechanism and | |
36 | * at some point, the drivers should be capable of parsing all the platform | |
37 | * data from the device tree. | |
38 | */ | |
39 | static const struct of_dev_auxdata exynos4210_auxdata_lookup[] __initconst = { | |
efd5af0d | 40 | OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_PA_UART0, |
6b5ab4f4 | 41 | "exynos4210-uart.0", NULL), |
efd5af0d | 42 | OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_PA_UART1, |
6b5ab4f4 | 43 | "exynos4210-uart.1", NULL), |
efd5af0d | 44 | OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_PA_UART2, |
6b5ab4f4 | 45 | "exynos4210-uart.2", NULL), |
efd5af0d | 46 | OF_DEV_AUXDATA("samsung,exynos4210-uart", EXYNOS4_PA_UART3, |
6b5ab4f4 TA |
47 | "exynos4210-uart.3", NULL), |
48 | OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(0), | |
49 | "exynos4-sdhci.0", NULL), | |
50 | OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(1), | |
51 | "exynos4-sdhci.1", NULL), | |
52 | OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(2), | |
53 | "exynos4-sdhci.2", NULL), | |
54 | OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(3), | |
55 | "exynos4-sdhci.3", NULL), | |
56 | OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(0), | |
57 | "s3c2440-i2c.0", NULL), | |
58 | OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA0, "dma-pl330.0", NULL), | |
59 | OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA1, "dma-pl330.1", NULL), | |
60 | {}, | |
61 | }; | |
62 | ||
63 | static void __init exynos4210_dt_map_io(void) | |
64 | { | |
35bded8f | 65 | exynos_init_io(NULL, 0); |
6b5ab4f4 TA |
66 | s3c24xx_init_clocks(24000000); |
67 | } | |
68 | ||
69 | static void __init exynos4210_dt_machine_init(void) | |
70 | { | |
71 | of_platform_populate(NULL, of_default_bus_match_table, | |
72 | exynos4210_auxdata_lookup, NULL); | |
73 | } | |
74 | ||
75 | static char const *exynos4210_dt_compat[] __initdata = { | |
76 | "samsung,exynos4210", | |
77 | NULL | |
78 | }; | |
79 | ||
80 | DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)") | |
81 | /* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */ | |
82 | .init_irq = exynos4_init_irq, | |
83 | .map_io = exynos4210_dt_map_io, | |
35bded8f | 84 | .handle_irq = gic_handle_irq, |
6b5ab4f4 TA |
85 | .init_machine = exynos4210_dt_machine_init, |
86 | .timer = &exynos4_timer, | |
87 | .dt_compat = exynos4210_dt_compat, | |
35bded8f | 88 | .restart = exynos4_restart, |
6b5ab4f4 | 89 | MACHINE_END |