projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b3e68fb1 KK |
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> | |
| 5b7897db | 13 | #include <linux/of_fdt.h> |
| 2eae613b | 14 | #include <linux/memblock.h> |
| 7000fe8c | 15 | #include <linux/io.h> |
| 9fbf0c85 | 16 | #include <linux/clocksource.h> |
| b3e68fb1 KK |
17 | |
| 18 | #include <asm/mach/arch.h> | |
| 7000fe8c | 19 | #include <mach/regs-pmu.h> |
| b3e68fb1 KK |
20 | |
| 21 | #include <plat/cpu.h> | |
| 2eae613b | 22 | #include <plat/mfc.h> |
| b3e68fb1 KK |
23 | |
| 24 | #include "common.h" | |
| 25 | ||
| 2edb36c4 | 26 | static void __init exynos5_dt_map_io(void) |
| b3e68fb1 KK |
27 | { |
| 28 | exynos_init_io(NULL, 0); | |
| b3e68fb1 KK |
29 | } |
| 30 | ||
| 2edb36c4 | 31 | static void __init exynos5_dt_machine_init(void) |
| b3e68fb1 | 32 | { |
| 7000fe8c AK |
33 | struct device_node *i2c_np; |
| 34 | const char *i2c_compat = "samsung,s3c2440-i2c"; | |
| 35 | unsigned int tmp; | |
| 36 | ||
| 37 | /* | |
| 38 | * Exynos5's legacy i2c controller and new high speed i2c | |
| 39 | * controller have muxed interrupt sources. By default the | |
| 40 | * interrupts for 4-channel HS-I2C controller are enabled. | |
| 41 | * If node for first four channels of legacy i2c controller | |
| 42 | * are available then re-configure the interrupts via the | |
| 43 | * system register. | |
| 44 | */ | |
| 45 | for_each_compatible_node(i2c_np, NULL, i2c_compat) { | |
| 46 | if (of_device_is_available(i2c_np)) { | |
| 47 | if (of_alias_get_id(i2c_np, "i2c") < 4) { | |
| 48 | tmp = readl(EXYNOS5_SYS_I2C_CFG); | |
| 49 | writel(tmp & ~(0x1 << of_alias_get_id(i2c_np, "i2c")), | |
| 50 | EXYNOS5_SYS_I2C_CFG); | |
| 51 | } | |
| 52 | } | |
| 53 | } | |
| 54 | ||
| ee6c7137 | 55 | of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); |
| b3e68fb1 KK |
56 | } |
| 57 | ||
| 2edb36c4 | 58 | static char const *exynos5_dt_compat[] __initdata = { |
| b3e68fb1 | 59 | "samsung,exynos5250", |
| 2edb36c4 | 60 | "samsung,exynos5440", |
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61 | NULL |
| 62 | }; | |
| 63 | ||
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64 | static void __init exynos5_reserve(void) |
| 65 | { | |
| ade7ffbb | 66 | #ifdef CONFIG_S5P_DEV_MFC |
| 2eae613b AK |
67 | struct s5p_mfc_dt_meminfo mfc_mem; |
| 68 | ||
| 69 | /* Reserve memory for MFC only if it's available */ | |
| 70 | mfc_mem.compatible = "samsung,mfc-v6"; | |
| 71 | if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem)) | |
| 72 | s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff, | |
| 73 | mfc_mem.lsize); | |
| ade7ffbb | 74 | #endif |
| 2eae613b AK |
75 | } |
| 76 | ||
| b3e68fb1 KK |
77 | DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)") |
| 78 | /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */ | |
| 06853ae4 | 79 | .smp = smp_ops(exynos_smp_ops), |
| 2edb36c4 | 80 | .map_io = exynos5_dt_map_io, |
| 2edb36c4 | 81 | .init_machine = exynos5_dt_machine_init, |
| bb13fabc | 82 | .init_late = exynos_init_late, |
| 6923ae4b | 83 | .init_time = exynos_init_time, |
| 2edb36c4 | 84 | .dt_compat = exynos5_dt_compat, |
| b3e68fb1 | 85 | .restart = exynos5_restart, |
| 2eae613b | 86 | .reserve = exynos5_reserve, |
| b3e68fb1 | 87 | MACHINE_END |