| 1 | /* |
| 2 | * Mikrotik RouterBOARD 1xx series support |
| 3 | * |
| 4 | * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org> |
| 5 | * |
| 6 | * NAND initialization code was based on a driver for Linux 2.6.19+ which |
| 7 | * was derived from the driver for Linux 2.4.xx published by Mikrotik for |
| 8 | * their RouterBoard 1xx and 5xx series boards. |
| 9 | * Copyright (C) 2007 David Goodenough <david.goodenough@linkchoose.co.uk> |
| 10 | * Copyright (C) 2007 Florian Fainelli <florian@openwrt.org> |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or modify it |
| 13 | * under the terms of the GNU General Public License version 2 as published |
| 14 | * by the Free Software Foundation. |
| 15 | * |
| 16 | */ |
| 17 | |
| 18 | #include "rb-1xx.h" |
| 19 | |
| 20 | #define RB1XX_NAND_CHIP_DELAY 25 |
| 21 | |
| 22 | static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = { |
| 23 | PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0), |
| 24 | PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI1), |
| 25 | PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2) |
| 26 | }; |
| 27 | |
| 28 | #ifdef CONFIG_MTD_PARTITIONS |
| 29 | static struct mtd_partition rb1xx_nor_parts[] = { |
| 30 | { |
| 31 | .name = "booter", |
| 32 | .offset = 0, |
| 33 | .size = 64*1024, |
| 34 | .mask_flags = MTD_WRITEABLE, |
| 35 | } , { |
| 36 | .name = "firmware", |
| 37 | .offset = MTDPART_OFS_APPEND, |
| 38 | .size = MTDPART_SIZ_FULL, |
| 39 | } |
| 40 | }; |
| 41 | |
| 42 | static struct mtd_partition rb1xx_nand_parts[] = { |
| 43 | { |
| 44 | .name = "kernel", |
| 45 | .offset = 0, |
| 46 | .size = 4 * 1024 * 1024, |
| 47 | } , { |
| 48 | .name = "rootfs", |
| 49 | .offset = MTDPART_OFS_NXTBLK, |
| 50 | .size = MTDPART_SIZ_FULL |
| 51 | } |
| 52 | }; |
| 53 | #endif /* CONFIG_MTD_PARTITIONS */ |
| 54 | |
| 55 | /* |
| 56 | * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader |
| 57 | * will not be able to find the kernel that we load. So set the oobinfo |
| 58 | * when creating the partitions |
| 59 | */ |
| 60 | static struct nand_ecclayout rb1xx_nand_ecclayout = { |
| 61 | .eccbytes = 6, |
| 62 | .eccpos = { 8, 9, 10, 13, 14, 15 }, |
| 63 | .oobavail = 9, |
| 64 | .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } |
| 65 | }; |
| 66 | |
| 67 | /*--------------------------------------------------------------------------*/ |
| 68 | |
| 69 | static int rb1xx_nand_fixup(struct mtd_info *mtd) |
| 70 | { |
| 71 | struct nand_chip *chip = mtd->priv; |
| 72 | |
| 73 | if (mtd->writesize == 512) |
| 74 | chip->ecc.layout = &rb1xx_nand_ecclayout; |
| 75 | |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | struct platform_nand_data rb1xx_nand_data __initdata = { |
| 80 | .chip = { |
| 81 | .nr_chips = 1, |
| 82 | #ifdef CONFIG_MTD_PARTITIONS |
| 83 | .nr_partitions = ARRAY_SIZE(rb1xx_nand_parts), |
| 84 | .partitions = rb1xx_nand_parts, |
| 85 | #endif /* CONFIG_MTD_PARTITIONS */ |
| 86 | .chip_delay = RB1XX_NAND_CHIP_DELAY, |
| 87 | .options = NAND_NO_AUTOINCR, |
| 88 | .chip_fixup = rb1xx_nand_fixup, |
| 89 | }, |
| 90 | }; |
| 91 | |
| 92 | struct gpio_button rb1xx_gpio_buttons[] __initdata = { |
| 93 | { |
| 94 | .desc = "reset_button", |
| 95 | .type = EV_KEY, |
| 96 | .code = BTN_0, |
| 97 | .threshold = 5, |
| 98 | .gpio = ADM5120_GPIO_PIN7, |
| 99 | } |
| 100 | }; |
| 101 | |
| 102 | static void __init rb1xx_mac_setup(void) |
| 103 | { |
| 104 | if (rb_hs.mac_base != NULL && is_valid_ether_addr(rb_hs.mac_base)) { |
| 105 | adm5120_setup_eth_macs(rb_hs.mac_base); |
| 106 | } else { |
| 107 | u8 mac[ETH_ALEN]; |
| 108 | |
| 109 | random_ether_addr(mac); |
| 110 | adm5120_setup_eth_macs(mac); |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | void __init rb1xx_add_device_flash(void) |
| 115 | { |
| 116 | /* setup data for flash0 device */ |
| 117 | #ifdef CONFIG_MTD_PARTITIONS |
| 118 | adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_nor_parts); |
| 119 | adm5120_flash0_data.parts = rb1xx_nor_parts; |
| 120 | #endif /* CONFIG_MTD_PARTITIONS */ |
| 121 | adm5120_flash0_data.window_size = 128*1024; |
| 122 | |
| 123 | adm5120_add_device_flash(0); |
| 124 | } |
| 125 | |
| 126 | void __init rb1xx_add_device_nand(void) |
| 127 | { |
| 128 | /* enable NAND flash interface */ |
| 129 | adm5120_nand_enable(); |
| 130 | |
| 131 | /* initialize NAND chip */ |
| 132 | adm5120_nand_set_spn(1); |
| 133 | adm5120_nand_set_wpn(0); |
| 134 | |
| 135 | adm5120_add_device_nand(&rb1xx_nand_data); |
| 136 | } |
| 137 | |
| 138 | void __init rb1xx_generic_setup(void) |
| 139 | { |
| 140 | if (adm5120_package_bga()) |
| 141 | adm5120_pci_set_irq_map(ARRAY_SIZE(rb1xx_pci_irqs), |
| 142 | rb1xx_pci_irqs); |
| 143 | |
| 144 | adm5120_add_device_uart(0); |
| 145 | adm5120_add_device_uart(1); |
| 146 | |
| 147 | adm5120_add_device_gpio_buttons(ARRAY_SIZE(rb1xx_gpio_buttons), |
| 148 | rb1xx_gpio_buttons); |
| 149 | |
| 150 | rb1xx_add_device_flash(); |
| 151 | rb1xx_mac_setup(); |
| 152 | } |
| 153 | |
