2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
9 #include <linux/init.h>
10 #include <linux/kernel.h>
11 #include <linux/string.h>
12 #include <linux/platform_device.h>
13 #include <linux/mtd/mtd.h>
14 #include <linux/mtd/partitions.h>
15 #include <linux/mtd/physmap.h>
16 #include <asm/addrspace.h>
17 #include <bcm63xx_board.h>
18 #include <bcm63xx_cpu.h>
19 #include <bcm63xx_regs.h>
20 #include <bcm63xx_io.h>
21 #include <bcm63xx_board.h>
22 #include <bcm63xx_dev_pci.h>
23 #include <bcm63xx_dev_uart.h>
24 #include <bcm63xx_dev_enet.h>
25 #include <bcm63xx_dev_pcmcia.h>
26 #include <bcm63xx_dev_usb_ohci.h>
27 #include <bcm63xx_dev_usb_ehci.h>
28 #include <board_bcm963xx.h>
30 #define PFX "board_bcm963xx: "
32 static struct bcm963xx_nvram nvram;
33 static unsigned int mac_addr_used = 0;
34 static struct board_info board;
39 #ifdef CONFIG_BCM63XX_CPU_6348
40 static struct board_info __initdata board_96348r = {
42 .expected_cpu_id = 0x6348,
49 .use_internal_phy = 1,
53 static struct board_info __initdata board_96348gw_10 = {
55 .expected_cpu_id = 0x6348,
63 .use_internal_phy = 1,
67 .force_duplex_full = 1,
75 static struct board_info __initdata board_96348gw_11 = {
77 .expected_cpu_id = 0x6348,
85 .use_internal_phy = 1,
90 .force_duplex_full = 1,
99 static struct board_info __initdata board_96348gw = {
101 .expected_cpu_id = 0x6348,
109 .use_internal_phy = 1,
112 .force_speed_100 = 1,
113 .force_duplex_full = 1,
121 #ifdef CONFIG_BCM63XX_CPU_6358
122 static struct board_info __initdata board_96358vw = {
124 .expected_cpu_id = 0x6358,
132 .use_internal_phy = 1,
136 .force_speed_100 = 1,
137 .force_duplex_full = 1,
146 static struct board_info __initdata board_96358vw2 = {
148 .expected_cpu_id = 0x6358,
156 .use_internal_phy = 1,
160 .force_speed_100 = 1,
161 .force_duplex_full = 1,
174 static const struct board_info __initdata *bcm963xx_boards[] = {
175 #ifdef CONFIG_BCM63XX_CPU_6348
182 #ifdef CONFIG_BCM63XX_CPU_6358
189 * early init callback, read nvram data from flash and checksum it
191 void __init board_prom_init(void)
193 unsigned int check_len, i;
194 u8 *boot_addr, *cfe, *p;
195 char cfe_version[32];
198 /* read base address of boot chip select (0) */
199 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
200 val &= MPI_CSBASE_BASE_MASK;
201 boot_addr = (u8 *)KSEG1ADDR(val);
203 /* dump cfe version */
204 cfe = boot_addr + BCM963XX_CFE_VERSION_OFFSET;
205 if (!memcmp(cfe, "cfe-v", 5))
206 snprintf(cfe_version, sizeof(cfe_version), "%u.%u.%u-%u.%u",
207 cfe[5], cfe[6], cfe[7], cfe[8], cfe[9]);
209 strcpy(cfe_version, "unknown");
210 printk(KERN_INFO PFX "CFE version: %s\n", cfe_version);
212 /* extract nvram data */
213 memcpy(&nvram, boot_addr + BCM963XX_NVRAM_OFFSET, sizeof(nvram));
215 /* check checksum before using data */
216 if (nvram.version <= 4)
217 check_len = offsetof(struct bcm963xx_nvram, checksum_old);
219 check_len = sizeof(nvram);
225 printk(KERN_ERR PFX "invalid nvram checksum\n");
229 /* find board by name */
230 for (i = 0; i < ARRAY_SIZE(bcm963xx_boards); i++) {
231 if (strncmp(nvram.name, bcm963xx_boards[i]->name,
234 /* copy, board desc array is marked initdata */
235 memcpy(&board, bcm963xx_boards[i], sizeof(board));
239 /* bail out if board is not found, will complain later */
240 if (!board.name[0]) {
242 memcpy(name, nvram.name, 16);
244 printk(KERN_ERR PFX "unknown bcm963xx board: %s\n",
249 /* setup pin multiplexing depending on board enabled device,
250 * this has to be done this early since PCI init is done
251 * inside arch_initcall */
255 bcm63xx_pci_enabled = 1;
256 if (BCMCPU_IS_6348())
257 val |= GPIO_MODE_6348_G2_PCI;
260 if (board.has_pccard) {
261 if (BCMCPU_IS_6348())
262 val |= GPIO_MODE_6348_G1_MII_PCCARD;
265 if (board.has_enet0 && !board.enet0.use_internal_phy) {
266 if (BCMCPU_IS_6348())
267 val |= GPIO_MODE_6348_G3_EXT_MII |
268 GPIO_MODE_6348_G0_EXT_MII;
271 if (board.has_enet1 && !board.enet1.use_internal_phy) {
272 if (BCMCPU_IS_6348())
273 val |= GPIO_MODE_6348_G3_EXT_MII |
274 GPIO_MODE_6348_G0_EXT_MII;
277 bcm_gpio_writel(val, GPIO_MODE_REG);
281 * second stage init callback, good time to panic if we couldn't
282 * identify on which board we're running since early printk is working
284 void __init board_setup(void)
287 panic("unable to detect bcm963xx board");
288 printk(KERN_INFO PFX "board name: %s\n", board.name);
290 /* make sure we're running on expected cpu */
291 if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
292 panic("unexpected CPU for bcm963xx board");
296 * return board name for /proc/cpuinfo
298 const char *board_get_name(void)
304 * register & return a new board mac address
306 static int board_get_mac_address(u8 *mac)
311 if (mac_addr_used >= nvram.mac_addr_count) {
312 printk(KERN_ERR PFX "not enough mac address\n");
316 memcpy(mac, nvram.mac_addr_base, ETH_ALEN);
317 p = mac + ETH_ALEN - 1;
318 count = mac_addr_used;
330 printk(KERN_ERR PFX "unable to fetch mac address\n");
338 static struct resource mtd_resources[] = {
340 .start = 0, /* filled at runtime */
341 .end = 0, /* filled at runtime */
342 .flags = IORESOURCE_MEM,
346 static struct platform_device mtd_dev = {
347 .name = "bcm963xx-flash",
348 .resource = mtd_resources,
349 .num_resources = ARRAY_SIZE(mtd_resources),
353 * third stage init callback, register all board devices.
355 int __init board_register_devices(void)
359 bcm63xx_uart_register();
361 if (board.has_pccard)
362 bcm63xx_pcmcia_register();
364 if (board.has_enet0 &&
365 !board_get_mac_address(board.enet0.mac_addr))
366 bcm63xx_enet_register(0, &board.enet0);
368 if (board.has_enet1 &&
369 !board_get_mac_address(board.enet1.mac_addr))
370 bcm63xx_enet_register(1, &board.enet1);
373 bcm63xx_ohci_register();
376 bcm63xx_ehci_register();
379 /* read base address of boot chip select (0) */
380 val = bcm_mpi_readl(MPI_CSBASE_REG(0));
381 val &= MPI_CSBASE_BASE_MASK;
382 mtd_resources[0].start = val;
383 mtd_resources[0].end = 0x1FFFFFFF;
385 platform_device_register(&mtd_dev);