| 1 | /* |
| 2 | * Sitecom RDC321x platform devices |
| 3 | * |
| 4 | * Copyright (C) 2007-2009 OpenWrt.org |
| 5 | * Copyright (C) 2007 Florian Fainelli <florian@openwrt.org> |
| 6 | * Copyright (C) 2008-2009 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * as published by the Free Software Foundation; either version 2 |
| 11 | * of the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the |
| 20 | * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 21 | * Boston, MA 02110-1301, USA. |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #include <linux/init.h> |
| 26 | #include <linux/mtd/physmap.h> |
| 27 | #include <linux/input.h> |
| 28 | |
| 29 | #include <asm/rdc_boards.h> |
| 30 | |
| 31 | struct image_header { |
| 32 | char magic[4]; |
| 33 | u32 kernel_length; |
| 34 | u32 ramdisk_length; |
| 35 | char magic2[4]; |
| 36 | u32 kernel_length2; |
| 37 | }; |
| 38 | |
| 39 | static struct gpio_led sitecom_leds[] = { |
| 40 | { .name = "rdc321x:power", .gpio = 15, .active_low = 1}, |
| 41 | { .name = "rdc321x:usb0", .gpio = 0, .active_low = 1}, |
| 42 | { .name = "rdc321x:usb1", .gpio = 1, .active_low = 1}, |
| 43 | }; |
| 44 | |
| 45 | static struct gpio_button sitecom_btns[] = { |
| 46 | { |
| 47 | .gpio = 6, |
| 48 | .code = BTN_0, |
| 49 | .desc = "Reset", |
| 50 | .active_low = 1, |
| 51 | } |
| 52 | }; |
| 53 | |
| 54 | static int __init parse_sitecom_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long plat_data) |
| 55 | { |
| 56 | struct image_header header; |
| 57 | int res; |
| 58 | size_t len; |
| 59 | struct mtd_partition *rdc_flash_parts; |
| 60 | struct rdc_platform_data *pdata = (struct rdc_platform_data *) plat_data; |
| 61 | |
| 62 | if (master->size != 0x400000) //4MB |
| 63 | return -ENOSYS; |
| 64 | |
| 65 | res = master->read(master, 0x8000, sizeof(header), &len, (char *)&header); |
| 66 | if (res) |
| 67 | return res; |
| 68 | |
| 69 | if (strncmp(header.magic, "CSYS", 4) || strncmp(header.magic2, "WRRM", 4)) |
| 70 | return -ENOSYS; |
| 71 | |
| 72 | rdc_flash_parts = kzalloc(sizeof(struct mtd_partition) * 5, GFP_KERNEL); |
| 73 | |
| 74 | rdc_flash_parts[0].name = "firmware"; |
| 75 | rdc_flash_parts[0].offset = 0x8000; |
| 76 | rdc_flash_parts[0].size = 0x3F0000; |
| 77 | rdc_flash_parts[1].name = "config"; |
| 78 | rdc_flash_parts[1].offset = 0; |
| 79 | rdc_flash_parts[1].size = 0x8000; |
| 80 | rdc_flash_parts[2].name = "kernel"; |
| 81 | rdc_flash_parts[2].offset = 0x8014; |
| 82 | rdc_flash_parts[2].size = header.kernel_length; |
| 83 | rdc_flash_parts[3].name = "rootfs"; |
| 84 | rdc_flash_parts[3].offset = 0x8014 + header.kernel_length; |
| 85 | rdc_flash_parts[3].size = 0x3F0000 - rdc_flash_parts[3].offset; |
| 86 | rdc_flash_parts[4].name = "bootloader"; |
| 87 | rdc_flash_parts[4].offset = 0x3F0000; |
| 88 | rdc_flash_parts[4].size = 0x10000; |
| 89 | |
| 90 | *pparts = rdc_flash_parts; |
| 91 | |
| 92 | pdata->led_data.num_leds = ARRAY_SIZE(sitecom_leds); |
| 93 | pdata->led_data.leds = sitecom_leds; |
| 94 | pdata->button_data.nbuttons = ARRAY_SIZE(sitecom_btns); |
| 95 | pdata->button_data.buttons = sitecom_btns; |
| 96 | |
| 97 | return 5; |
| 98 | } |
| 99 | |
| 100 | struct mtd_part_parser __initdata sitecom_parser = { |
| 101 | .owner = THIS_MODULE, |
| 102 | .parse_fn = parse_sitecom_partitions, |
| 103 | .name = "Sitecom", |
| 104 | }; |
| 105 | |
| 106 | static int __init sitecom_setup(void) |
| 107 | { |
| 108 | return register_mtd_parser(&sitecom_parser); |
| 109 | } |
| 110 | |
| 111 | arch_initcall(sitecom_setup); |
| 112 | |
