| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /***************************************************************************/ |
| 3 | |
| 4 | /* |
| 5 | * firebee.c -- extra startup code support for the FireBee boards |
| 6 | * |
| 7 | * Copyright (C) 2011, Greg Ungerer (gerg@snapgear.com) |
| 8 | */ |
| 9 | |
| 10 | /***************************************************************************/ |
| 11 | |
| 12 | #include <linux/kernel.h> |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/io.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 | #include <asm/coldfire.h> |
| 20 | #include <asm/mcfsim.h> |
| 21 | |
| 22 | /***************************************************************************/ |
| 23 | |
| 24 | /* |
| 25 | * 8MB of NOR flash fitted to the FireBee board. |
| 26 | */ |
| 27 | #define FLASH_PHYS_ADDR 0xe0000000 /* Physical address of flash */ |
| 28 | #define FLASH_PHYS_SIZE 0x00800000 /* Size of flash */ |
| 29 | |
| 30 | #define PART_BOOT_START 0x00000000 /* Start at bottom of flash */ |
| 31 | #define PART_BOOT_SIZE 0x00040000 /* 256k in size */ |
| 32 | #define PART_IMAGE_START 0x00040000 /* Start after boot loader */ |
| 33 | #define PART_IMAGE_SIZE 0x006c0000 /* Most of flash */ |
| 34 | #define PART_FPGA_START 0x00700000 /* Start at offset 7MB */ |
| 35 | #define PART_FPGA_SIZE 0x00100000 /* 1MB in size */ |
| 36 | |
| 37 | static struct mtd_partition firebee_flash_parts[] = { |
| 38 | { |
| 39 | .name = "dBUG", |
| 40 | .offset = PART_BOOT_START, |
| 41 | .size = PART_BOOT_SIZE, |
| 42 | }, |
| 43 | { |
| 44 | .name = "FPGA", |
| 45 | .offset = PART_FPGA_START, |
| 46 | .size = PART_FPGA_SIZE, |
| 47 | }, |
| 48 | { |
| 49 | .name = "image", |
| 50 | .offset = PART_IMAGE_START, |
| 51 | .size = PART_IMAGE_SIZE, |
| 52 | }, |
| 53 | }; |
| 54 | |
| 55 | static struct physmap_flash_data firebee_flash_data = { |
| 56 | .width = 2, |
| 57 | .nr_parts = ARRAY_SIZE(firebee_flash_parts), |
| 58 | .parts = firebee_flash_parts, |
| 59 | }; |
| 60 | |
| 61 | static struct resource firebee_flash_resource = { |
| 62 | .start = FLASH_PHYS_ADDR, |
| 63 | .end = FLASH_PHYS_ADDR + FLASH_PHYS_SIZE, |
| 64 | .flags = IORESOURCE_MEM, |
| 65 | }; |
| 66 | |
| 67 | static struct platform_device firebee_flash = { |
| 68 | .name = "physmap-flash", |
| 69 | .id = 0, |
| 70 | .dev = { |
| 71 | .platform_data = &firebee_flash_data, |
| 72 | }, |
| 73 | .num_resources = 1, |
| 74 | .resource = &firebee_flash_resource, |
| 75 | }; |
| 76 | |
| 77 | /***************************************************************************/ |
| 78 | |
| 79 | static int __init init_firebee(void) |
| 80 | { |
| 81 | platform_device_register(&firebee_flash); |
| 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | arch_initcall(init_firebee); |
| 86 | |
| 87 | /***************************************************************************/ |