projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 7badfabb GU |
1 | /***************************************************************************/ |
| 2 | ||
| 3 | /* | |
| 4 | * firebee.c -- extra startup code support for the FireBee boards | |
| 5 | * | |
| 6 | * Copyright (C) 2011, Greg Ungerer (gerg@snapgear.com) | |
| 7 | */ | |
| 8 | ||
| 9 | /***************************************************************************/ | |
| 10 | ||
| 11 | #include <linux/kernel.h> | |
| 12 | #include <linux/init.h> | |
| 13 | #include <linux/io.h> | |
| 14 | #include <linux/platform_device.h> | |
| 15 | #include <linux/mtd/mtd.h> | |
| 16 | #include <linux/mtd/partitions.h> | |
| 17 | #include <linux/mtd/physmap.h> | |
| 18 | #include <asm/coldfire.h> | |
| 19 | #include <asm/mcfsim.h> | |
| 20 | ||
| 21 | /***************************************************************************/ | |
| 22 | ||
| 23 | /* | |
| 24 | * 8MB of NOR flash fitted to the FireBee board. | |
| 25 | */ | |
| 26 | #define FLASH_PHYS_ADDR 0xe0000000 /* Physical address of flash */ | |
| 27 | #define FLASH_PHYS_SIZE 0x00800000 /* Size of flash */ | |
| 28 | ||
| 29 | #define PART_BOOT_START 0x00000000 /* Start at bottom of flash */ | |
| 30 | #define PART_BOOT_SIZE 0x00040000 /* 256k in size */ | |
| 31 | #define PART_IMAGE_START 0x00040000 /* Start after boot loader */ | |
| 32 | #define PART_IMAGE_SIZE 0x006c0000 /* Most of flash */ | |
| 33 | #define PART_FPGA_START 0x00700000 /* Start at offset 7MB */ | |
| 34 | #define PART_FPGA_SIZE 0x00100000 /* 1MB in size */ | |
| 35 | ||
| 36 | static struct mtd_partition firebee_flash_parts[] = { | |
| 37 | { | |
| 38 | .name = "dBUG", | |
| 39 | .offset = PART_BOOT_START, | |
| 40 | .size = PART_BOOT_SIZE, | |
| 41 | }, | |
| 42 | { | |
| 43 | .name = "FPGA", | |
| 44 | .offset = PART_FPGA_START, | |
| 45 | .size = PART_FPGA_SIZE, | |
| 46 | }, | |
| 47 | { | |
| 48 | .name = "image", | |
| 49 | .offset = PART_IMAGE_START, | |
| 50 | .size = PART_IMAGE_SIZE, | |
| 51 | }, | |
| 52 | }; | |
| 53 | ||
| 54 | static struct physmap_flash_data firebee_flash_data = { | |
| 55 | .width = 2, | |
| 56 | .nr_parts = ARRAY_SIZE(firebee_flash_parts), | |
| 57 | .parts = firebee_flash_parts, | |
| 58 | }; | |
| 59 | ||
| 60 | static struct resource firebee_flash_resource = { | |
| 61 | .start = FLASH_PHYS_ADDR, | |
| 62 | .end = FLASH_PHYS_ADDR + FLASH_PHYS_SIZE, | |
| 63 | .flags = IORESOURCE_MEM, | |
| 64 | }; | |
| 65 | ||
| 66 | static struct platform_device firebee_flash = { | |
| 67 | .name = "physmap-flash", | |
| 68 | .id = 0, | |
| 69 | .dev = { | |
| 70 | .platform_data = &firebee_flash_data, | |
| 71 | }, | |
| 72 | .num_resources = 1, | |
| 73 | .resource = &firebee_flash_resource, | |
| 74 | }; | |
| 75 | ||
| 76 | /***************************************************************************/ | |
| 77 | ||
| 78 | static int __init init_firebee(void) | |
| 79 | { | |
| 80 | platform_device_register(&firebee_flash); | |
| 81 | return 0; | |
| 82 | } | |
| 83 | ||
| 84 | arch_initcall(init_firebee); | |
| 85 | ||
| 86 | /***************************************************************************/ |