1 /* 2 * Renesas Technology Europe RSK+ Support. 3 * 4 * Copyright (C) 2008 Paul Mundt 5 * Copyright (C) 2008 Peter Griffin <pgriffin@mpc-data.co.uk> 6 * 7 * This file is subject to the terms and conditions of the GNU General Public 8 * License. See the file "COPYING" in the main directory of this archive 9 * for more details. 10 */ 11 #include <linux/init.h> 12 #include <linux/types.h> 13 #include <linux/platform_device.h> 14 #include <linux/interrupt.h> 15 #include <linux/mtd/mtd.h> 16 #include <linux/mtd/partitions.h> 17 #include <linux/mtd/physmap.h> 18 #ifdef CONFIG_MTD 19 #include <linux/mtd/map.h> 20 #endif 21 #include <asm/machvec.h> 22 #include <asm/io.h> 23 24 static struct mtd_partition rsk_partitions[] = { 25 { 26 .name = "Bootloader", 27 .offset = 0x00000000, 28 .size = 0x00040000, 29 .mask_flags = MTD_WRITEABLE, 30 }, { 31 .name = "Kernel", 32 .offset = MTDPART_OFS_NXTBLK, 33 .size = 0x001c0000, 34 }, { 35 .name = "Flash_FS", 36 .offset = MTDPART_OFS_NXTBLK, 37 .size = MTDPART_SIZ_FULL, 38 } 39 }; 40 41 static struct physmap_flash_data flash_data = { 42 .parts = rsk_partitions, 43 .nr_parts = ARRAY_SIZE(rsk_partitions), 44 .width = 2, 45 }; 46 47 static struct resource flash_resource = { 48 .start = 0x20000000, 49 .end = 0x20400000, 50 .flags = IORESOURCE_MEM, 51 }; 52 53 static struct platform_device flash_device = { 54 .name = "physmap-flash", 55 .id = -1, 56 .resource = &flash_resource, 57 .num_resources = 1, 58 .dev = { 59 .platform_data = &flash_data, 60 }, 61 }; 62 63 #ifdef CONFIG_MTD 64 static const char *probes[] = { "cmdlinepart", NULL }; 65 66 static struct map_info rsk_flash_map = { 67 .name = "RSK+ Flash", 68 .size = 0x400000, 69 .bankwidth = 2, 70 }; 71 72 static struct mtd_info *flash_mtd; 73 74 static struct mtd_partition *parsed_partitions; 75 76 static void __init set_mtd_partitions(void) 77 { 78 int nr_parts = 0; 79 80 simple_map_init(&rsk_flash_map); 81 flash_mtd = do_map_probe("cfi_probe", &rsk_flash_map); 82 nr_parts = parse_mtd_partitions(flash_mtd, probes, 83 &parsed_partitions, 0); 84 /* If there is no partition table, used the hard coded table */ 85 if (nr_parts > 0) { 86 flash_data.nr_parts = nr_parts; 87 flash_data.parts = parsed_partitions; 88 } 89 } 90 #else 91 static inline void set_mtd_partitions(void) {} 92 #endif 93 94 static struct platform_device *rsk_devices[] __initdata = { 95 &flash_device, 96 }; 97 98 static int __init rsk_devices_setup(void) 99 { 100 set_mtd_partitions(); 101 return platform_add_devices(rsk_devices, 102 ARRAY_SIZE(rsk_devices)); 103 } 104 device_initcall(rsk_devices_setup); 105 106 /* 107 * The Machine Vector 108 */ 109 static struct sh_machine_vector mv_rsk __initmv = { 110 .mv_name = "RSK+", 111 }; 112