2 * RouterBoard 500 Platform devices
4 * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
5 * Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/ctype.h>
20 #include <linux/string.h>
21 #include <linux/platform_device.h>
22 #include <linux/mtd/nand.h>
23 #include <linux/mtd/mtd.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/gpio_keys.h>
26 #include <linux/input.h>
28 #include <asm/bootinfo.h>
30 #include <asm/mach-rc32434/rc32434.h>
31 #include <asm/mach-rc32434/dma.h>
32 #include <asm/mach-rc32434/dma_v.h>
33 #include <asm/mach-rc32434/eth.h>
34 #include <asm/mach-rc32434/rb.h>
35 #include <asm/mach-rc32434/integ.h>
36 #include <asm/mach-rc32434/gpio.h>
38 #define ETH0_DMA_RX_IRQ (GROUP1_IRQ_BASE + 0)
39 #define ETH0_DMA_TX_IRQ (GROUP1_IRQ_BASE + 1)
40 #define ETH0_RX_OVR_IRQ (GROUP3_IRQ_BASE + 9)
41 #define ETH0_TX_UND_IRQ (GROUP3_IRQ_BASE + 10)
43 #define ETH0_RX_DMA_ADDR (DMA0_BASE_ADDR + 0 * DMA_CHAN_OFFSET)
44 #define ETH0_TX_DMA_ADDR (DMA0_BASE_ADDR + 1 * DMA_CHAN_OFFSET)
46 /* NAND definitions */
47 #define GPIO_RDY (1 << 0x08)
48 #define GPIO_WPX (1 << 0x09)
49 #define GPIO_ALE (1 << 0x0a)
50 #define GPIO_CLE (1 << 0x0b)
52 static struct resource korina_dev0_res[] = {
54 .name = "korina_regs",
55 .start = ETH0_BASE_ADDR,
56 .end = ETH0_BASE_ADDR + sizeof(struct eth_regs),
57 .flags = IORESOURCE_MEM,
60 .start = ETH0_DMA_RX_IRQ,
61 .end = ETH0_DMA_RX_IRQ,
62 .flags = IORESOURCE_IRQ
65 .start = ETH0_DMA_TX_IRQ,
66 .end = ETH0_DMA_TX_IRQ,
67 .flags = IORESOURCE_IRQ
70 .start = ETH0_RX_OVR_IRQ,
71 .end = ETH0_RX_OVR_IRQ,
72 .flags = IORESOURCE_IRQ
75 .start = ETH0_TX_UND_IRQ,
76 .end = ETH0_TX_UND_IRQ,
77 .flags = IORESOURCE_IRQ
79 .name = "korina_dma_rx",
80 .start = ETH0_RX_DMA_ADDR,
81 .end = ETH0_RX_DMA_ADDR + DMA_CHAN_OFFSET - 1,
82 .flags = IORESOURCE_MEM,
84 .name = "korina_dma_tx",
85 .start = ETH0_TX_DMA_ADDR,
86 .end = ETH0_TX_DMA_ADDR + DMA_CHAN_OFFSET - 1,
87 .flags = IORESOURCE_MEM,
91 static struct korina_device korina_dev0_data = {
93 .mac = {0xde, 0xca, 0xff, 0xc0, 0xff, 0xee}
96 static struct platform_device korina_dev0 = {
99 .dev.platform_data = &korina_dev0_data,
100 .resource = korina_dev0_res,
101 .num_resources = ARRAY_SIZE(korina_dev0_res),
104 #define CF_GPIO_NUM 13
106 static struct resource cf_slot0_res[] = {
108 .name = "cf_membase",
109 .flags = IORESOURCE_MEM
112 .start = (8 + 4 * 32 + CF_GPIO_NUM), /* 149 */
113 .end = (8 + 4 * 32 + CF_GPIO_NUM),
114 .flags = IORESOURCE_IRQ
118 static struct cf_device cf_slot0_data = {
122 static struct platform_device cf_slot0 = {
124 .name = "pata-rb532-cf",
125 .dev.platform_data = &cf_slot0_data,
126 .resource = cf_slot0_res,
127 .num_resources = ARRAY_SIZE(cf_slot0_res),
130 /* Resources and device for NAND */
131 static int rb532_dev_ready(struct mtd_info *mtd)
133 return readl(IDT434_REG_BASE + GPIOD) & GPIO_RDY;
136 static void rb532_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
138 struct nand_chip *chip = mtd->priv;
139 unsigned char orbits, nandbits;
141 if (ctrl & NAND_CTRL_CHANGE) {
142 orbits = (ctrl & NAND_CLE) << 1;
143 orbits |= (ctrl & NAND_ALE) >> 1;
145 nandbits = (~ctrl & NAND_CLE) << 1;
146 nandbits |= (~ctrl & NAND_ALE) >> 1;
148 set_latch_u5(orbits, nandbits);
150 if (cmd != NAND_CMD_NONE)
151 writeb(cmd, chip->IO_ADDR_W);
154 static struct resource nand_slot0_res[] = {
156 .name = "nand_membase",
157 .flags = IORESOURCE_MEM
161 static struct platform_nand_data rb532_nand_data = {
162 .ctrl.dev_ready = rb532_dev_ready,
163 .ctrl.cmd_ctrl = rb532_cmd_ctrl,
166 static struct platform_device nand_slot0 = {
169 .resource = nand_slot0_res,
170 .num_resources = ARRAY_SIZE(nand_slot0_res),
171 .dev.platform_data = &rb532_nand_data,
174 static struct mtd_partition rb532_partition_info[] = {
176 .name = "Routerboard NAND boot",
178 .size = 4 * 1024 * 1024,
181 .offset = MTDPART_OFS_NXTBLK,
182 .size = MTDPART_SIZ_FULL,
186 static struct platform_device rb532_led = {
191 static struct gpio_keys_button rb532_gpio_btn[] = {
200 static struct gpio_keys_platform_data rb532_gpio_btn_data = {
201 .buttons = rb532_gpio_btn,
202 .nbuttons = ARRAY_SIZE(rb532_gpio_btn),
205 static struct platform_device rb532_button = {
209 .platform_data = &rb532_gpio_btn_data,
213 static struct resource rb532_wdt_res[] = {
215 .name = "rb532_wdt_res",
216 .start = INTEG0_BASE_ADDR,
217 .end = INTEG0_BASE_ADDR + sizeof(struct integ),
218 .flags = IORESOURCE_MEM,
222 static struct platform_device rb532_wdt = {
223 .name = "rc32434_wdt",
225 .resource = rb532_wdt_res,
226 .num_resources = ARRAY_SIZE(rb532_wdt_res),
229 static struct platform_device *rb532_devs[] = {
238 static void __init parse_mac_addr(char *macstr)
241 unsigned char result, value;
243 for (i = 0; i < 6; i++) {
246 if (i != 5 && *(macstr + 2) != ':')
249 for (j = 0; j < 2; j++) {
250 if (isxdigit(*macstr)
252 isdigit(*macstr) ? *macstr -
253 '0' : toupper(*macstr) - 'A' + 10) < 16) {
254 result = result * 16 + value;
261 korina_dev0_data.mac[i] = result;
266 /* NAND definitions */
267 #define NAND_CHIP_DELAY 25
269 static void __init rb532_nand_setup(void)
271 switch (mips_machtype) {
272 case MACH_MIKROTIK_RB532A:
273 set_latch_u5(LO_FOFF | LO_CEX,
274 LO_ULED | LO_ALE | LO_CLE | LO_WPX);
277 set_latch_u5(LO_WPX | LO_FOFF | LO_CEX,
278 LO_ULED | LO_ALE | LO_CLE);
282 /* Setup NAND specific settings */
283 rb532_nand_data.chip.nr_chips = 1;
284 rb532_nand_data.chip.nr_partitions = ARRAY_SIZE(rb532_partition_info);
285 rb532_nand_data.chip.partitions = rb532_partition_info;
286 rb532_nand_data.chip.chip_delay = NAND_CHIP_DELAY;
287 rb532_nand_data.chip.options = NAND_NO_AUTOINCR;
291 static int __init plat_setup_devices(void)
293 /* Look for the CF card reader */
294 if (!readl(IDT434_REG_BASE + DEV1MASK))
295 rb532_devs[1] = NULL;
297 cf_slot0_res[0].start =
298 readl(IDT434_REG_BASE + DEV1BASE);
299 cf_slot0_res[0].end = cf_slot0_res[0].start + 0x1000;
302 /* Read the NAND resources from the device controller */
303 nand_slot0_res[0].start = readl(IDT434_REG_BASE + DEV2BASE);
304 nand_slot0_res[0].end = nand_slot0_res[0].start + 0x1000;
306 /* Initialise the NAND device */
309 return platform_add_devices(rb532_devs, ARRAY_SIZE(rb532_devs));
312 static int __init setup_kmac(char *s)
314 printk(KERN_INFO "korina mac = %s\n", s);
319 __setup("kmac=", setup_kmac);
321 arch_initcall(plat_setup_devices);