2 * SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com
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.
12 #include <linux/of_platform.h>
13 #include <linux/serial_core.h>
15 #include <asm/mach/arch.h>
16 #include <asm/hardware/gic.h>
20 #include <plat/regs-serial.h>
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.
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.
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("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),
56 static void __init exynos5250_dt_map_io(void)
58 exynos_init_io(NULL, 0);
59 s3c24xx_init_clocks(24000000);
62 static void __init exynos5250_dt_machine_init(void)
64 of_platform_populate(NULL, of_default_bus_match_table,
65 exynos5250_auxdata_lookup, NULL);
68 static char const *exynos5250_dt_compat[] __initdata = {
73 DT_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,