1/* Flash mappings for the MB93090-MB00 motherboard 2 * 3 * Copyright (C) 2009 Red Hat, Inc. All Rights Reserved. 4 * Written by David Howells (dhowells@redhat.com) 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public Licence 8 * as published by the Free Software Foundation; either version 9 * 2 of the Licence, or (at your option) any later version. 10 */ 11 12#include <linux/init.h> 13#include <linux/platform_device.h> 14#include <linux/mtd/partitions.h> 15#include <linux/mtd/physmap.h> 16 17#define MB93090_BOOTROM_ADDR 0xFF000000 /* Boot ROM */ 18#define MB93090_BOOTROM_SIZE (2 * 1024 * 1024) 19#define MB93090_USERROM_ADDR 0xFF200000 /* User ROM */ 20#define MB93090_USERROM_SIZE (2 * 1024 * 1024) 21 22/* 23 * default MTD partition table for both main flash devices, expected to be 24 * overridden by RedBoot 25 */ 26static struct mtd_partition mb93090_partitions[] = { 27 { 28 .name = "Filesystem", 29 .size = MTDPART_SIZ_FULL, 30 .offset = 0, 31 } 32}; 33 34/* 35 * Definition of the MB93090 Boot ROM (on the CPU card) 36 */ 37static struct physmap_flash_data mb93090_bootrom_data = { 38 .width = 2, 39 .nr_parts = 2, 40 .parts = mb93090_partitions, 41}; 42 43static struct resource mb93090_bootrom_resource = { 44 .start = MB93090_BOOTROM_ADDR, 45 .end = MB93090_BOOTROM_ADDR + MB93090_BOOTROM_SIZE - 1, 46 .flags = IORESOURCE_MEM, 47}; 48 49static struct platform_device mb93090_bootrom = { 50 .name = "physmap-flash", 51 .id = 0, 52 .dev.platform_data = &mb93090_bootrom_data, 53 .num_resources = 1, 54 .resource = &mb93090_bootrom_resource, 55}; 56 57/* 58 * Definition of the MB93090 User ROM definition (on the motherboard) 59 */ 60static struct physmap_flash_data mb93090_userrom_data = { 61 .width = 2, 62 .nr_parts = 2, 63 .parts = mb93090_partitions, 64}; 65 66static struct resource mb93090_userrom_resource = { 67 .start = MB93090_USERROM_ADDR, 68 .end = MB93090_USERROM_ADDR + MB93090_USERROM_SIZE - 1, 69 .flags = IORESOURCE_MEM, 70}; 71 72static struct platform_device mb93090_userrom = { 73 .name = "physmap-flash", 74 .id = 1, 75 .dev.platform_data = &mb93090_userrom_data, 76 .num_resources = 1, 77 .resource = &mb93090_userrom_resource, 78}; 79 80/* 81 * register the MB93090 flashes 82 */ 83static int __init mb93090_mtd_init(void) 84{ 85 platform_device_register(&mb93090_bootrom); 86 platform_device_register(&mb93090_userrom); 87 return 0; 88} 89 90module_init(mb93090_mtd_init); 91