2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
16 * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
19 #include <linux/autoconf.h>
20 #include <linux/init.h>
21 #include <linux/module.h>
22 #include <linux/types.h>
23 #include <linux/string.h>
24 #include <linux/mtd/physmap.h>
25 #include <linux/kernel.h>
26 #include <linux/reboot.h>
27 #include <linux/platform_device.h>
28 #include <asm/bootinfo.h>
29 #include <asm/reboot.h>
33 #include <linux/etherdevice.h>
34 #include <asm/ifxmips/ifxmips.h>
36 #define MAX_BOARD_NAME_LEN 32
37 #define MAX_IFXMIPS_DEVS 9
39 #define SYSTEM_DANUBE "Danube"
40 #define SYSTEM_DANUBE_CHIPID1 0x10129083
41 #define SYSTEM_DANUBE_CHIPID2 0x3012B083
43 #define SYSTEM_TWINPASS "Twinpass"
44 #define SYSTEM_TWINPASS_CHIPID 0x3012D083
46 extern int ifxmips_pci_external_clock;
48 static unsigned int chiprev;
49 static int cmdline_mac = 0;
50 char board_name[MAX_BOARD_NAME_LEN + 1] = { 0 };
52 struct ifxmips_board {
54 unsigned int system_type;
55 struct platform_device *devs[MAX_IFXMIPS_DEVS];
56 struct resource reset_resource;
57 struct resource gpiodev_resource;
58 int pci_external_clock;
62 spinlock_t ebu_lock = SPIN_LOCK_UNLOCKED;
63 EXPORT_SYMBOL_GPL(ebu_lock);
65 static unsigned char ifxmips_mii_mac[6];
66 static int ifxmips_brn = 0;
68 static struct platform_device
72 .name = "ifxmips_led",
75 static struct platform_device
79 .name = "ifxmips_gpio",
83 static struct platform_device
87 .name = "ifxmips_mii0",
89 .platform_data = ifxmips_mii_mac,
93 static struct platform_device
97 .name = "ifxmips_wdt",
100 static struct resource
101 ifxmips_mtd_resource = {
102 .start = IFXMIPS_FLASH_START,
103 .end = IFXMIPS_FLASH_START + IFXMIPS_FLASH_MAX - 1,
104 .flags = IORESOURCE_MEM,
107 static struct platform_device
111 .name = "ifxmips_mtd",
113 .resource = &ifxmips_mtd_resource,
116 static struct platform_device
124 get_system_type(void)
126 chiprev = ifxmips_r32(IFXMIPS_MPS_CHIPID);
129 case SYSTEM_DANUBE_CHIPID1:
130 case SYSTEM_DANUBE_CHIPID2:
131 return SYSTEM_DANUBE;
133 case SYSTEM_TWINPASS_CHIPID:
134 return SYSTEM_TWINPASS;
137 return BOARD_SYSTEM_TYPE;
141 ifxmips_set_board_type(char *str)
143 str = strchr(str, '=');
147 if(strlen(str) > MAX_BOARD_NAME_LEN)
149 strncpy(board_name, str, MAX_BOARD_NAME_LEN);
150 printk("bootloader told us, that this is a %s board\n", board_name);
154 __setup("ifxmips_board", ifxmips_set_board_type);
157 (((x >='0' && x <= '9') || (x >='a' && x <= 'f') || (x >='A' && x <= 'F'))?(1):(0))
160 ifxmips_set_mii0_mac(char *str)
163 str = strchr(str, '=');
167 if(strlen(str) != 17)
169 for(i = 0; i < 6; i++)
171 if(!IS_HEX(str[3 * i]) || !IS_HEX(str[(3 * i) + 1]))
173 if((i != 5) && (str[(3 * i) + 2] != ':'))
175 ifxmips_mii_mac[i] = simple_strtoul(&str[3 * i], NULL, 16);
177 if(is_valid_ether_addr(ifxmips_mii_mac))
182 __setup("mii0_mac", ifxmips_set_mii0_mac);
185 static struct ifxmips_board boards[] =
189 .system_type = SYSTEM_DANUBE_CHIPID1,
192 &ifxmips_led, &ifxmips_gpio, &ifxmips_mii,
193 &ifxmips_mtd, &ifxmips_wdt, &ifxmips_gpio_dev,
204 .start = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
205 (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
206 .end = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
207 (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
212 .system_type = SYSTEM_TWINPASS_CHIPID,
215 &ifxmips_led, &ifxmips_gpio, &ifxmips_mii,
216 &ifxmips_mtd, &ifxmips_wdt, &ifxmips_gpio_dev,
227 .start = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
228 (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
229 .end = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
230 (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
235 .system_type = SYSTEM_DANUBE_CHIPID2,
238 &ifxmips_led, &ifxmips_gpio, &ifxmips_mii,
239 &ifxmips_mtd, &ifxmips_wdt, &ifxmips_gpio_dev,
250 .start = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
251 (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
252 .end = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
253 (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
255 .pci_external_clock = 1,
261 ifxmips_find_brn_block(void){
262 unsigned char temp[8];
263 memcpy_fromio(temp, (void*)KSEG1ADDR(IFXMIPS_FLASH_START + 0x800000 - 0x10000), 8);
264 if(memcmp(temp, "BRN-BOOT", 8) == 0)
267 memcpy_fromio(ifxmips_mii_mac, (void*)KSEG1ADDR(IFXMIPS_FLASH_START + 0x800000 - 0x10000 + 0x16), 6);
276 ifxmips_has_brn_block(void)
281 struct ifxmips_board*
282 ifxmips_find_board(void)
287 for(i = 0; i < ARRAY_SIZE(boards); i++)
288 if((boards[i].system_type == chiprev) && (!strcmp(boards[i].name, board_name)))
294 ifxmips_init_devices(void)
296 struct ifxmips_board *board = ifxmips_find_board();
298 chiprev = ifxmips_r32(IFXMIPS_MPS_CHIPID);
299 ifxmips_brn = ifxmips_find_brn_block();
302 random_ether_addr(ifxmips_mii_mac);
308 case SYSTEM_DANUBE_CHIPID1:
309 case SYSTEM_DANUBE_CHIPID2:
312 case SYSTEM_TWINPASS_CHIPID:
317 ifxmips_gpio.resource = &board->reset_resource;
318 ifxmips_gpio_dev.resource = &board->gpiodev_resource;
319 if(board->pci_external_clock)
320 ifxmips_pci_external_clock = 1;
321 printk("using board definition %s\n", board->name);
322 return platform_add_devices(board->devs, board->num_devs);
325 arch_initcall(ifxmips_init_devices);