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("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI0
,
52 OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI1
,
54 OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI2
,
56 OF_DEV_AUXDATA("samsung,exynos5250-dw-mshc", EXYNOS5_PA_DWMCI3
,
58 OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI0
,
59 "exynos4210-spi.0", NULL
),
60 OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI1
,
61 "exynos4210-spi.1", NULL
),
62 OF_DEV_AUXDATA("samsung,exynos4210-spi", EXYNOS5_PA_SPI2
,
63 "exynos4210-spi.2", NULL
),
64 OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0
, "dma-pl330.0", NULL
),
65 OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1
, "dma-pl330.1", NULL
),
66 OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1
, "dma-pl330.2", NULL
),
67 OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC0
,
68 "exynos-gsc.0", NULL
),
69 OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC1
,
70 "exynos-gsc.1", NULL
),
71 OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC2
,
72 "exynos-gsc.2", NULL
),
73 OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC3
,
74 "exynos-gsc.3", NULL
),
78 static void __init
exynos5250_dt_map_io(void)
80 exynos_init_io(NULL
, 0);
81 s3c24xx_init_clocks(24000000);
84 static void __init
exynos5250_dt_machine_init(void)
86 of_platform_populate(NULL
, of_default_bus_match_table
,
87 exynos5250_auxdata_lookup
, NULL
);
90 static char const *exynos5250_dt_compat
[] __initdata
= {
95 DT_MACHINE_START(EXYNOS5_DT
, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
96 /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
97 .init_irq
= exynos5_init_irq
,
98 .smp
= smp_ops(exynos_smp_ops
),
99 .map_io
= exynos5250_dt_map_io
,
100 .handle_irq
= gic_handle_irq
,
101 .init_machine
= exynos5250_dt_machine_init
,
102 .init_late
= exynos_init_late
,
103 .timer
= &exynos4_timer
,
104 .dt_compat
= exynos5250_dt_compat
,
105 .restart
= exynos5_restart
,