2 * Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2006,2007 Eugene Konev <ejka@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <linux/init.h>
21 #include <linux/types.h>
22 #include <linux/module.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/platform_device.h>
26 #include <linux/mtd/physmap.h>
27 #include <linux/serial.h>
28 #include <linux/serial_8250.h>
29 #include <linux/ioport.h>
31 #include <linux/vlynq.h>
32 #include <linux/leds.h>
33 #include <linux/string.h>
34 #include <linux/etherdevice.h>
35 #include <linux/phy.h>
36 #include <linux/phy_fixed.h>
37 #include <linux/gpio.h>
38 #include <linux/clk.h>
40 #include <asm/addrspace.h>
41 #include <asm/mach-ar7/ar7.h>
42 #include <asm/mach-ar7/gpio.h>
43 #include <asm/mach-ar7/prom.h>
45 /*****************************************************************************
47 ****************************************************************************/
48 struct plat_vlynq_data {
49 struct plat_vlynq_ops ops;
54 static int vlynq_on(struct vlynq_device *dev)
57 struct plat_vlynq_data *pdata = dev->dev.platform_data;
59 ret = gpio_request(pdata->gpio_bit, "vlynq");
63 ar7_device_reset(pdata->reset_bit);
65 ret = ar7_gpio_disable(pdata->gpio_bit);
69 ret = ar7_gpio_enable(pdata->gpio_bit);
73 ret = gpio_direction_output(pdata->gpio_bit, 0);
75 goto out_gpio_enabled;
79 gpio_set_value(pdata->gpio_bit, 1);
86 ar7_gpio_disable(pdata->gpio_bit);
88 ar7_device_disable(pdata->reset_bit);
89 gpio_free(pdata->gpio_bit);
94 static void vlynq_off(struct vlynq_device *dev)
96 struct plat_vlynq_data *pdata = dev->dev.platform_data;
98 ar7_gpio_disable(pdata->gpio_bit);
99 gpio_free(pdata->gpio_bit);
100 ar7_device_disable(pdata->reset_bit);
103 static struct resource vlynq_low_res[] = {
106 .flags = IORESOURCE_MEM,
107 .start = AR7_REGS_VLYNQ0,
108 .end = AR7_REGS_VLYNQ0 + 0xff,
112 .flags = IORESOURCE_IRQ,
118 .flags = IORESOURCE_MEM,
124 .flags = IORESOURCE_IRQ,
130 static struct resource vlynq_high_res[] = {
133 .flags = IORESOURCE_MEM,
134 .start = AR7_REGS_VLYNQ1,
135 .end = AR7_REGS_VLYNQ1 + 0xff,
139 .flags = IORESOURCE_IRQ,
145 .flags = IORESOURCE_MEM,
151 .flags = IORESOURCE_IRQ,
157 static struct plat_vlynq_data vlynq_low_data = {
166 static struct plat_vlynq_data vlynq_high_data = {
175 static struct platform_device vlynq_low = {
179 .platform_data = &vlynq_low_data,
181 .resource = vlynq_low_res,
182 .num_resources = ARRAY_SIZE(vlynq_low_res),
185 static struct platform_device vlynq_high = {
189 .platform_data = &vlynq_high_data,
191 .resource = vlynq_high_res,
192 .num_resources = ARRAY_SIZE(vlynq_high_res),
195 /*****************************************************************************
197 ****************************************************************************/
198 static struct resource physmap_flash_resource = {
200 .flags = IORESOURCE_MEM,
205 static struct physmap_flash_data physmap_flash_data = {
209 static struct platform_device physmap_flash = {
210 .name = "physmap-flash",
212 .platform_data = &physmap_flash_data,
214 .resource = &physmap_flash_resource,
218 /*****************************************************************************
220 ****************************************************************************/
221 static struct resource cpmac_low_res[] = {
224 .flags = IORESOURCE_MEM,
225 .start = AR7_REGS_MAC0,
226 .end = AR7_REGS_MAC0 + 0x7ff,
230 .flags = IORESOURCE_IRQ,
236 static struct resource cpmac_high_res[] = {
239 .flags = IORESOURCE_MEM,
240 .start = AR7_REGS_MAC1,
241 .end = AR7_REGS_MAC1 + 0x7ff,
245 .flags = IORESOURCE_IRQ,
251 static struct fixed_phy_status fixed_phy_status __initdata = {
257 static struct plat_cpmac_data cpmac_low_data = {
260 .phy_mask = 0x80000000,
263 static struct plat_cpmac_data cpmac_high_data = {
266 .phy_mask = 0x7fffffff,
269 static u64 cpmac_dma_mask = DMA_BIT_MASK(32);
271 static struct platform_device cpmac_low = {
275 .dma_mask = &cpmac_dma_mask,
276 .coherent_dma_mask = DMA_BIT_MASK(32),
277 .platform_data = &cpmac_low_data,
279 .resource = cpmac_low_res,
280 .num_resources = ARRAY_SIZE(cpmac_low_res),
283 static struct platform_device cpmac_high = {
287 .dma_mask = &cpmac_dma_mask,
288 .coherent_dma_mask = DMA_BIT_MASK(32),
289 .platform_data = &cpmac_high_data,
291 .resource = cpmac_high_res,
292 .num_resources = ARRAY_SIZE(cpmac_high_res),
295 static void __init cpmac_get_mac(int instance, unsigned char *dev_addr)
299 sprintf(name, "mac%c", 'a' + instance);
300 mac = prom_getenv(name);
301 if (!mac && instance) {
302 sprintf(name, "mac%c", 'a');
303 mac = prom_getenv(name);
307 if (sscanf(mac, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
308 &dev_addr[0], &dev_addr[1],
309 &dev_addr[2], &dev_addr[3],
310 &dev_addr[4], &dev_addr[5]) != 6) {
311 pr_warning("cannot parse mac address, "
312 "using random address\n");
313 random_ether_addr(dev_addr);
316 random_ether_addr(dev_addr);
319 /*****************************************************************************
321 ****************************************************************************/
322 static struct resource usb_res[] = {
325 .flags = IORESOURCE_MEM,
326 .start = AR7_REGS_USB,
327 .end = AR7_REGS_USB + 0xff,
331 .flags = IORESOURCE_IRQ,
337 .flags = IORESOURCE_MEM,
343 static struct platform_device ar7_udc = {
346 .num_resources = ARRAY_SIZE(usb_res),
349 /*****************************************************************************
351 ****************************************************************************/
352 static struct gpio_led default_leds[] = {
360 static struct gpio_led dsl502t_leds[] = {
378 static struct gpio_led dg834g_leds[] = {
403 .default_trigger = "default-on",
407 static struct gpio_led fb_sl_leds[] = {
434 static struct gpio_led fb_fon_leds[] = {
460 static struct gpio_led_platform_data ar7_led_data;
462 static struct platform_device ar7_gpio_leds = {
465 .platform_data = &ar7_led_data,
469 static void __init detect_leds(void)
471 char *prid, *usb_prod;
474 ar7_led_data.num_leds = ARRAY_SIZE(default_leds);
475 ar7_led_data.leds = default_leds;
477 /* FIXME: the whole thing is unreliable */
478 prid = prom_getenv("ProductID");
479 usb_prod = prom_getenv("usb_prod");
481 /* If we can't get the product id from PROM, use the default LEDs */
485 if (strstr(prid, "Fritz_Box_FON")) {
486 ar7_led_data.num_leds = ARRAY_SIZE(fb_fon_leds);
487 ar7_led_data.leds = fb_fon_leds;
488 } else if (strstr(prid, "Fritz_Box_")) {
489 ar7_led_data.num_leds = ARRAY_SIZE(fb_sl_leds);
490 ar7_led_data.leds = fb_sl_leds;
491 } else if ((!strcmp(prid, "AR7RD") || !strcmp(prid, "AR7DB"))
492 && usb_prod != NULL && strstr(usb_prod, "DSL-502T")) {
493 ar7_led_data.num_leds = ARRAY_SIZE(dsl502t_leds);
494 ar7_led_data.leds = dsl502t_leds;
495 } else if (strstr(prid, "DG834")) {
496 ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds);
497 ar7_led_data.leds = dg834g_leds;
501 /*****************************************************************************
503 ****************************************************************************/
504 static struct resource ar7_wdt_res = {
506 .flags = IORESOURCE_MEM,
507 .start = -1, /* Filled at runtime */
508 .end = -1, /* Filled at runtime */
511 static struct platform_device ar7_wdt = {
513 .resource = &ar7_wdt_res,
517 /*****************************************************************************
519 ****************************************************************************/
520 static int __init ar7_register_uarts(void)
522 #ifdef CONFIG_SERIAL_8250
523 static struct uart_port uart_port __initdata;
527 memset(&uart_port, 0, sizeof(struct uart_port));
529 bus_clk = clk_get(NULL, "bus");
531 panic("unable to get bus clk\n");
533 uart_port.type = PORT_AR7;
534 uart_port.uartclk = clk_get_rate(bus_clk) / 2;
535 uart_port.iotype = UPIO_MEM32;
536 uart_port.regshift = 2;
539 uart_port.irq = AR7_IRQ_UART0;
540 uart_port.mapbase = AR7_REGS_UART0;
541 uart_port.membase = ioremap(uart_port.mapbase, 256);
543 res = early_serial_setup(&uart_port);
547 /* Only TNETD73xx have a second serial port */
548 if (ar7_has_second_uart()) {
550 uart_port.irq = AR7_IRQ_UART1;
551 uart_port.mapbase = UR8_REGS_UART1;
552 uart_port.membase = ioremap(uart_port.mapbase, 256);
554 res = early_serial_setup(&uart_port);
563 static int __init ar7_register_devices(void)
565 void __iomem *bootcr;
569 res = ar7_register_uarts();
571 pr_err("unable to setup uart(s): %d\n", res);
573 res = platform_device_register(&physmap_flash);
575 pr_warning("unable to register physmap-flash: %d\n", res);
577 ar7_device_disable(vlynq_low_data.reset_bit);
578 res = platform_device_register(&vlynq_low);
580 pr_warning("unable to register vlynq-low: %d\n", res);
582 if (ar7_has_high_vlynq()) {
583 ar7_device_disable(vlynq_high_data.reset_bit);
584 res = platform_device_register(&vlynq_high);
586 pr_warning("unable to register vlynq-high: %d\n", res);
589 if (ar7_has_high_cpmac()) {
590 res = fixed_phy_add(PHY_POLL, cpmac_high.id, &fixed_phy_status);
592 cpmac_get_mac(1, cpmac_high_data.dev_addr);
594 res = platform_device_register(&cpmac_high);
596 pr_warning("unable to register cpmac-high: %d\n", res);
598 pr_warning("unable to add cpmac-high phy: %d\n", res);
600 cpmac_low_data.phy_mask = 0xffffffff;
602 res = fixed_phy_add(PHY_POLL, cpmac_low.id, &fixed_phy_status);
604 cpmac_get_mac(0, cpmac_low_data.dev_addr);
605 res = platform_device_register(&cpmac_low);
607 pr_warning("unable to register cpmac-low: %d\n", res);
609 pr_warning("unable to add cpmac-low phy: %d\n", res);
612 res = platform_device_register(&ar7_gpio_leds);
614 pr_warning("unable to register leds: %d\n", res);
616 res = platform_device_register(&ar7_udc);
618 pr_warning("unable to register usb slave: %d\n", res);
620 /* Register watchdog only if enabled in hardware */
621 bootcr = ioremap_nocache(AR7_REGS_DCL, 4);
624 if (val & AR7_WDT_HW_ENA) {
625 if (ar7_has_high_vlynq())
626 ar7_wdt_res.start = UR8_REGS_WDT;
628 ar7_wdt_res.start = AR7_REGS_WDT;
630 ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
631 res = platform_device_register(&ar7_wdt);
633 pr_warning("unable to register watchdog: %d\n", res);
638 device_initcall(ar7_register_devices);