2 * Mikrotik RouterBOARD 1xx series support
4 * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
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>
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.
20 #define RB1XX_NAND_CHIP_DELAY 25
22 #define RB1XX_KEYS_POLL_INTERVAL 20
23 #define RB1XX_KEYS_DEBOUNCE_INTERVAL (3 * RB1XX_KEYS_POLL_INTERVAL)
25 static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
26 PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0),
27 PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI1),
28 PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2)
31 static struct mtd_partition rb1xx_nor_parts[] = {
36 .mask_flags = MTD_WRITEABLE,
39 .offset = MTDPART_OFS_APPEND,
40 .size = MTDPART_SIZ_FULL,
44 static struct mtd_partition rb1xx_nand_parts[] = {
48 .size = 4 * 1024 * 1024,
51 .offset = MTDPART_OFS_NXTBLK,
52 .size = MTDPART_SIZ_FULL
57 * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
58 * will not be able to find the kernel that we load. So set the oobinfo
59 * when creating the partitions
61 static struct nand_ecclayout rb1xx_nand_ecclayout = {
63 .eccpos = { 8, 9, 10, 13, 14, 15 },
65 .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
68 /*--------------------------------------------------------------------------*/
70 static int rb1xx_nand_fixup(struct mtd_info *mtd)
72 struct nand_chip *chip = mtd->priv;
74 if (mtd->writesize == 512)
75 chip->ecc.layout = &rb1xx_nand_ecclayout;
80 struct platform_nand_data rb1xx_nand_data __initdata = {
83 .nr_partitions = ARRAY_SIZE(rb1xx_nand_parts),
84 .partitions = rb1xx_nand_parts,
85 .chip_delay = RB1XX_NAND_CHIP_DELAY,
86 .options = NAND_NO_AUTOINCR,
87 .chip_fixup = rb1xx_nand_fixup,
91 struct gpio_keys_button rb1xx_gpio_buttons[] __initdata = {
93 .desc = "reset_button",
96 .debounce_interval = RB1XX_KEYS_DEBOUNCE_INTERVAL,
97 .gpio = ADM5120_GPIO_PIN7,
101 static void __init rb1xx_mac_setup(void)
103 if (rb_hs.mac_base != NULL && is_valid_ether_addr(rb_hs.mac_base)) {
104 adm5120_setup_eth_macs(rb_hs.mac_base);
108 random_ether_addr(mac);
109 adm5120_setup_eth_macs(mac);
113 void __init rb1xx_add_device_flash(void)
115 /* setup data for flash0 device */
116 adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_nor_parts);
117 adm5120_flash0_data.parts = rb1xx_nor_parts;
118 adm5120_flash0_data.window_size = 128*1024;
120 adm5120_add_device_flash(0);
123 void __init rb1xx_add_device_nand(void)
125 /* enable NAND flash interface */
126 adm5120_nand_enable();
128 /* initialize NAND chip */
129 adm5120_nand_set_spn(1);
130 adm5120_nand_set_wpn(0);
132 adm5120_add_device_nand(&rb1xx_nand_data);
135 void __init rb1xx_generic_setup(void)
137 if (adm5120_package_bga())
138 adm5120_pci_set_irq_map(ARRAY_SIZE(rb1xx_pci_irqs),
141 adm5120_add_device_uart(0);
142 adm5120_add_device_uart(1);
144 adm5120_register_gpio_buttons(-1, RB1XX_KEYS_POLL_INTERVAL,
145 ARRAY_SIZE(rb1xx_gpio_buttons),
148 rb1xx_add_device_flash();