diff options
Diffstat (limited to 'arch/arm/mach-davinci/board-evm.c')
-rw-r--r-- | arch/arm/mach-davinci/board-evm.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-evm.c b/arch/arm/mach-davinci/board-evm.c new file mode 100644 index 000000000000..633c12e43044 --- /dev/null +++ b/arch/arm/mach-davinci/board-evm.c | |||
@@ -0,0 +1,131 @@ | |||
1 | /* | ||
2 | * TI DaVinci EVM board support | ||
3 | * | ||
4 | * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com> | ||
5 | * | ||
6 | * 2007 (c) MontaVista Software, Inc. This file is licensed under | ||
7 | * the terms of the GNU General Public License version 2. This program | ||
8 | * is licensed "as is" without any warranty of any kind, whether express | ||
9 | * or implied. | ||
10 | */ | ||
11 | #include <linux/kernel.h> | ||
12 | #include <linux/module.h> | ||
13 | #include <linux/init.h> | ||
14 | #include <linux/dma-mapping.h> | ||
15 | #include <linux/platform_device.h> | ||
16 | #include <linux/mtd/mtd.h> | ||
17 | #include <linux/mtd/partitions.h> | ||
18 | #include <linux/mtd/physmap.h> | ||
19 | |||
20 | #include <asm/setup.h> | ||
21 | #include <asm/io.h> | ||
22 | #include <asm/mach-types.h> | ||
23 | #include <asm/hardware.h> | ||
24 | |||
25 | #include <asm/mach/arch.h> | ||
26 | #include <asm/mach/map.h> | ||
27 | #include <asm/mach/flash.h> | ||
28 | |||
29 | #include <asm/arch/common.h> | ||
30 | |||
31 | /* other misc. init functions */ | ||
32 | void __init davinci_psc_init(void); | ||
33 | void __init davinci_irq_init(void); | ||
34 | void __init davinci_map_common_io(void); | ||
35 | |||
36 | /* NOR Flash base address set to CS0 by default */ | ||
37 | #define NOR_FLASH_PHYS 0x02000000 | ||
38 | |||
39 | static struct mtd_partition davinci_evm_partitions[] = { | ||
40 | /* bootloader (U-Boot, etc) in first 4 sectors */ | ||
41 | { | ||
42 | .name = "bootloader", | ||
43 | .offset = 0, | ||
44 | .size = 4 * SZ_64K, | ||
45 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | ||
46 | }, | ||
47 | /* bootloader params in the next 1 sectors */ | ||
48 | { | ||
49 | .name = "params", | ||
50 | .offset = MTDPART_OFS_APPEND, | ||
51 | .size = SZ_64K, | ||
52 | .mask_flags = 0, | ||
53 | }, | ||
54 | /* kernel */ | ||
55 | { | ||
56 | .name = "kernel", | ||
57 | .offset = MTDPART_OFS_APPEND, | ||
58 | .size = SZ_2M, | ||
59 | .mask_flags = 0 | ||
60 | }, | ||
61 | /* file system */ | ||
62 | { | ||
63 | .name = "filesystem", | ||
64 | .offset = MTDPART_OFS_APPEND, | ||
65 | .size = MTDPART_SIZ_FULL, | ||
66 | .mask_flags = 0 | ||
67 | } | ||
68 | }; | ||
69 | |||
70 | static struct physmap_flash_data davinci_evm_flash_data = { | ||
71 | .width = 2, | ||
72 | .parts = davinci_evm_partitions, | ||
73 | .nr_parts = ARRAY_SIZE(davinci_evm_partitions), | ||
74 | }; | ||
75 | |||
76 | /* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF | ||
77 | * limits addresses to 16M, so using addresses past 16M will wrap */ | ||
78 | static struct resource davinci_evm_flash_resource = { | ||
79 | .start = NOR_FLASH_PHYS, | ||
80 | .end = NOR_FLASH_PHYS + SZ_16M - 1, | ||
81 | .flags = IORESOURCE_MEM, | ||
82 | }; | ||
83 | |||
84 | static struct platform_device davinci_evm_flash_device = { | ||
85 | .name = "physmap-flash", | ||
86 | .id = 0, | ||
87 | .dev = { | ||
88 | .platform_data = &davinci_evm_flash_data, | ||
89 | }, | ||
90 | .num_resources = 1, | ||
91 | .resource = &davinci_evm_flash_resource, | ||
92 | }; | ||
93 | |||
94 | static struct platform_device *davinci_evm_devices[] __initdata = { | ||
95 | &davinci_evm_flash_device, | ||
96 | }; | ||
97 | |||
98 | static void __init | ||
99 | davinci_evm_map_io(void) | ||
100 | { | ||
101 | davinci_map_common_io(); | ||
102 | } | ||
103 | |||
104 | static __init void davinci_evm_init(void) | ||
105 | { | ||
106 | davinci_psc_init(); | ||
107 | |||
108 | #if defined(CONFIG_BLK_DEV_DAVINCI) || defined(CONFIG_BLK_DEV_DAVINCI_MODULE) | ||
109 | printk(KERN_WARNING "WARNING: both IDE and NOR flash are enabled, " | ||
110 | "but share pins.\n\t Disable IDE for NOR support.\n"); | ||
111 | #endif | ||
112 | |||
113 | platform_add_devices(davinci_evm_devices, | ||
114 | ARRAY_SIZE(davinci_evm_devices)); | ||
115 | } | ||
116 | |||
117 | static __init void davinci_evm_irq_init(void) | ||
118 | { | ||
119 | davinci_irq_init(); | ||
120 | } | ||
121 | |||
122 | MACHINE_START(DAVINCI_EVM, "DaVinci EVM") | ||
123 | /* Maintainer: MontaVista Software <source@mvista.com> */ | ||
124 | .phys_io = IO_PHYS, | ||
125 | .io_pg_offst = (io_p2v(IO_PHYS) >> 18) & 0xfffc, | ||
126 | .boot_params = (DAVINCI_DDR_BASE + 0x100), | ||
127 | .map_io = davinci_evm_map_io, | ||
128 | .init_irq = davinci_evm_irq_init, | ||
129 | .timer = &davinci_timer, | ||
130 | .init_machine = davinci_evm_init, | ||
131 | MACHINE_END | ||