| Kukjin Kim | b3e68fb | 2012-02-10 13:13:15 +0900 | [diff] [blame] | 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 | */ |
| 37 | static 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("arm,pl330", EXYNOS5_PA_PDMA0, "dma-pl330.0", NULL), |
| 47 | OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.1", NULL), |
| Thomas Abraham | 6080622 | 2012-04-10 08:37:59 -0700 | [diff] [blame] | 48 | OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1, "dma-pl330.2", NULL), |
| Kukjin Kim | b3e68fb | 2012-02-10 13:13:15 +0900 | [diff] [blame] | 49 | {}, |
| 50 | }; |
| 51 | |
| 52 | static void __init exynos5250_dt_map_io(void) |
| 53 | { |
| 54 | exynos_init_io(NULL, 0); |
| 55 | s3c24xx_init_clocks(24000000); |
| 56 | } |
| 57 | |
| 58 | static void __init exynos5250_dt_machine_init(void) |
| 59 | { |
| 60 | of_platform_populate(NULL, of_default_bus_match_table, |
| 61 | exynos5250_auxdata_lookup, NULL); |
| 62 | } |
| 63 | |
| 64 | static char const *exynos5250_dt_compat[] __initdata = { |
| 65 | "samsung,exynos5250", |
| 66 | NULL |
| 67 | }; |
| 68 | |
| 69 | DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)") |
| 70 | /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */ |
| 71 | .init_irq = exynos5_init_irq, |
| 72 | .map_io = exynos5250_dt_map_io, |
| 73 | .handle_irq = gic_handle_irq, |
| 74 | .init_machine = exynos5250_dt_machine_init, |
| 75 | .timer = &exynos4_timer, |
| 76 | .dt_compat = exynos5250_dt_compat, |
| 77 | .restart = exynos5_restart, |
| 78 | MACHINE_END |