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 | ||
