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 inline unsigned char char2hex(char h)
298 case '0': case '1': case '2': case '3': case '4':
299 case '5': case '6': case '7': case '8': case '9':
301 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
303 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
310 static void cpmac_get_mac(int instance, unsigned char *dev_addr)
313 char name[5], default_mac[ETH_ALEN], *mac;
316 sprintf(name, "mac%c", 'a' + instance);
317 mac = prom_getenv(name);
319 sprintf(name, "mac%c", 'a');
320 mac = prom_getenv(name);
323 random_ether_addr(default_mac);
326 for (i = 0; i < 6; i++)
327 dev_addr[i] = (char2hex(mac[i * 3]) << 4) +
328 char2hex(mac[i * 3 + 1]);
331 /*****************************************************************************
333 ****************************************************************************/
334 static struct resource usb_res[] = {
337 .flags = IORESOURCE_MEM,
338 .start = AR7_REGS_USB,
339 .end = AR7_REGS_USB + 0xff,
343 .flags = IORESOURCE_IRQ,
349 .flags = IORESOURCE_MEM,
355 static struct platform_device ar7_udc = {
358 .num_resources = ARRAY_SIZE(usb_res),
361 /*****************************************************************************
363 ****************************************************************************/
364 static struct gpio_led default_leds[] = {
372 static struct gpio_led dsl502t_leds[] = {
390 static struct gpio_led dg834g_leds[] = {
415 .default_trigger = "default-on",
419 static struct gpio_led fb_sl_leds[] = {
446 static struct gpio_led fb_fon_leds[] = {
472 static struct gpio_led_platform_data ar7_led_data;
474 static struct platform_device ar7_gpio_leds = {
477 .platform_data = &ar7_led_data,
481 static void __init detect_leds(void)
483 char *prid, *usb_prod;
486 ar7_led_data.num_leds = ARRAY_SIZE(default_leds);
487 ar7_led_data.leds = default_leds;
489 /* FIXME: the whole thing is unreliable */
490 prid = prom_getenv("ProductID");
491 usb_prod = prom_getenv("usb_prod");
493 /* If we can't get the product id from PROM, use the default LEDs */
497 if (strstr(prid, "Fritz_Box_FON")) {
498 ar7_led_data.num_leds = ARRAY_SIZE(fb_fon_leds);
499 ar7_led_data.leds = fb_fon_leds;
500 } else if (strstr(prid, "Fritz_Box_")) {
501 ar7_led_data.num_leds = ARRAY_SIZE(fb_sl_leds);
502 ar7_led_data.leds = fb_sl_leds;
503 } else if ((!strcmp(prid, "AR7RD") || !strcmp(prid, "AR7DB"))
504 && usb_prod != NULL && strstr(usb_prod, "DSL-502T")) {
505 ar7_led_data.num_leds = ARRAY_SIZE(dsl502t_leds);
506 ar7_led_data.leds = dsl502t_leds;
507 } else if (strstr(prid, "DG834")) {
508 ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds);
509 ar7_led_data.leds = dg834g_leds;
513 /*****************************************************************************
515 ****************************************************************************/
516 static struct resource ar7_wdt_res = {
518 .flags = IORESOURCE_MEM,
519 .start = -1, /* Filled at runtime */
520 .end = -1, /* Filled at runtime */
523 static struct platform_device ar7_wdt = {
525 .resource = &ar7_wdt_res,
529 /*****************************************************************************
531 ****************************************************************************/
532 static int __init ar7_register_uarts(void)
534 #ifdef CONFIG_SERIAL_8250
535 static struct uart_port uart_port __initdata;
539 memset(&uart_port, 0, sizeof(struct uart_port));
541 bus_clk = clk_get(NULL, "bus");
543 panic("unable to get bus clk\n");
545 uart_port.type = PORT_16550A;
546 uart_port.uartclk = clk_get_rate(bus_clk) / 2;
547 uart_port.iotype = UPIO_MEM32;
548 uart_port.regshift = 2;
551 uart_port.irq = AR7_IRQ_UART0;
552 uart_port.mapbase = AR7_REGS_UART0;
553 uart_port.membase = ioremap(uart_port.mapbase, 256);
555 res = early_serial_setup(&uart_port);
559 /* Only TNETD73xx have a second serial port */
560 if (ar7_has_second_uart()) {
562 uart_port.irq = AR7_IRQ_UART1;
563 uart_port.mapbase = UR8_REGS_UART1;
564 uart_port.membase = ioremap(uart_port.mapbase, 256);
566 res = early_serial_setup(&uart_port);
575 static int __init ar7_register_devices(void)
577 void __iomem *bootcr;
582 res = ar7_register_uarts();
584 pr_err("unable to setup uart(s): %d\n", res);
586 res = platform_device_register(&physmap_flash);
588 pr_warning("unable to register physmap-flash: %d\n", res);
590 ar7_device_disable(vlynq_low_data.reset_bit);
591 res = platform_device_register(&vlynq_low);
593 pr_warning("unable to register vlynq-low: %d\n", res);
595 if (ar7_has_high_vlynq()) {
596 ar7_device_disable(vlynq_high_data.reset_bit);
597 res = platform_device_register(&vlynq_high);
599 pr_warning("unable to register vlynq-high: %d\n", res);
602 if (ar7_has_high_cpmac()) {
603 res = fixed_phy_add(PHY_POLL, cpmac_high.id, &fixed_phy_status);
605 cpmac_get_mac(1, cpmac_high_data.dev_addr);
607 res = platform_device_register(&cpmac_high);
609 pr_warning("unable to register cpmac-high: %d\n", res);
611 pr_warning("unable to add cpmac-high phy: %d\n", res);
613 cpmac_low_data.phy_mask = 0xffffffff;
615 res = fixed_phy_add(PHY_POLL, cpmac_low.id, &fixed_phy_status);
617 cpmac_get_mac(0, cpmac_low_data.dev_addr);
618 res = platform_device_register(&cpmac_low);
620 pr_warning("unable to register cpmac-low: %d\n", res);
622 pr_warning("unable to add cpmac-low phy: %d\n", res);
625 res = platform_device_register(&ar7_gpio_leds);
627 pr_warning("unable to register leds: %d\n", res);
629 res = platform_device_register(&ar7_udc);
631 pr_warning("unable to register usb slave: %d\n", res);
633 /* Register watchdog only if enabled in hardware */
634 bootcr = ioremap_nocache(AR7_REGS_DCL, 4);
637 if (val & AR7_WDT_HW_ENA) {
638 chip_id = ar7_chip_id();
642 ar7_wdt_res.start = AR7_REGS_WDT;
645 ar7_wdt_res.start = UR8_REGS_WDT;
651 ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
652 res = platform_device_register(&ar7_wdt);
654 pr_warning("unable to register watchdog: %d\n", res);
659 arch_initcall(ar7_register_devices);