2 * Atheros AR71xx SoC platform devices
4 * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
5 * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
6 * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
8 * Parts of this file are based on Atheros 2.6.15 BSP
9 * Parts of this file are based on Atheros 2.6.31 BSP
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License version 2 as published
13 * by the Free Software Foundation.
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/delay.h>
19 #include <linux/etherdevice.h>
20 #include <linux/platform_device.h>
21 #include <linux/serial_8250.h>
23 #include <asm/mach-ar71xx/ar71xx.h>
24 #include <asm/mach-ar71xx/ar933x_uart_platform.h>
28 unsigned char ar71xx_mac_base[ETH_ALEN] __initdata;
30 static struct resource ar71xx_uart_resources[] = {
32 .start = AR71XX_UART_BASE,
33 .end = AR71XX_UART_BASE + AR71XX_UART_SIZE - 1,
34 .flags = IORESOURCE_MEM,
38 #define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
39 static struct plat_serial8250_port ar71xx_uart_data[] = {
41 .mapbase = AR71XX_UART_BASE,
42 .irq = AR71XX_MISC_IRQ_UART,
43 .flags = AR71XX_UART_FLAGS,
47 /* terminating entry */
51 static struct platform_device ar71xx_uart_device = {
53 .id = PLAT8250_DEV_PLATFORM,
54 .resource = ar71xx_uart_resources,
55 .num_resources = ARRAY_SIZE(ar71xx_uart_resources),
57 .platform_data = ar71xx_uart_data
61 static struct resource ar933x_uart_resources[] = {
63 .start = AR933X_UART_BASE,
64 .end = AR933X_UART_BASE + AR71XX_UART_SIZE - 1,
65 .flags = IORESOURCE_MEM,
68 .start = AR71XX_MISC_IRQ_UART,
69 .end = AR71XX_MISC_IRQ_UART,
70 .flags = IORESOURCE_IRQ,
74 static struct ar933x_uart_platform_data ar933x_uart_data;
75 static struct platform_device ar933x_uart_device = {
76 .name = "ar933x-uart",
78 .resource = ar933x_uart_resources,
79 .num_resources = ARRAY_SIZE(ar933x_uart_resources),
81 .platform_data = &ar933x_uart_data,
85 void __init ar71xx_add_device_uart(void)
87 struct platform_device *pdev;
90 case AR71XX_SOC_AR7130:
91 case AR71XX_SOC_AR7141:
92 case AR71XX_SOC_AR7161:
93 case AR71XX_SOC_AR7240:
94 case AR71XX_SOC_AR7241:
95 case AR71XX_SOC_AR7242:
96 case AR71XX_SOC_AR9130:
97 case AR71XX_SOC_AR9132:
98 pdev = &ar71xx_uart_device;
99 ar71xx_uart_data[0].uartclk = ar71xx_ahb_freq;
102 case AR71XX_SOC_AR9330:
103 case AR71XX_SOC_AR9331:
104 pdev = &ar933x_uart_device;
105 ar933x_uart_data.uartclk = ar71xx_ref_freq;
108 case AR71XX_SOC_AR9341:
109 case AR71XX_SOC_AR9342:
110 case AR71XX_SOC_AR9344:
111 pdev = &ar71xx_uart_device;
112 ar71xx_uart_data[0].uartclk = ar71xx_ref_freq;
119 platform_device_register(pdev);
122 static struct resource ar71xx_mdio_resources[] = {
125 .flags = IORESOURCE_MEM,
126 .start = AR71XX_GE0_BASE,
127 .end = AR71XX_GE0_BASE + 0x200 - 1,
131 static struct ag71xx_mdio_platform_data ar71xx_mdio_data;
133 struct platform_device ar71xx_mdio_device = {
134 .name = "ag71xx-mdio",
136 .resource = ar71xx_mdio_resources,
137 .num_resources = ARRAY_SIZE(ar71xx_mdio_resources),
139 .platform_data = &ar71xx_mdio_data,
143 static void ar71xx_set_pll(u32 cfg_reg, u32 pll_reg, u32 pll_val, u32 shift)
148 base = ioremap_nocache(AR71XX_PLL_BASE, AR71XX_PLL_SIZE);
150 t = __raw_readl(base + cfg_reg);
153 __raw_writel(t, base + cfg_reg);
156 __raw_writel(pll_val, base + pll_reg);
159 __raw_writel(t, base + cfg_reg);
163 __raw_writel(t, base + cfg_reg);
166 printk(KERN_DEBUG "ar71xx: pll_reg %#x: %#x\n",
167 (unsigned int)(base + pll_reg), __raw_readl(base + pll_reg));
172 void __init ar71xx_add_device_mdio(u32 phy_mask)
174 switch (ar71xx_soc) {
175 case AR71XX_SOC_AR7240:
176 ar71xx_mdio_data.is_ar7240 = 1;
178 case AR71XX_SOC_AR7241:
179 ar71xx_mdio_data.is_ar7240 = 1;
180 ar71xx_mdio_resources[0].start = AR71XX_GE1_BASE;
181 ar71xx_mdio_resources[0].end = AR71XX_GE1_BASE + 0x200 - 1;
183 case AR71XX_SOC_AR7242:
184 ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG,
185 AR7242_PLL_REG_ETH0_INT_CLOCK, 0x62000000,
186 AR71XX_ETH0_PLL_SHIFT);
188 case AR71XX_SOC_AR9330:
189 case AR71XX_SOC_AR9331:
190 ar71xx_mdio_data.is_ar7240 = 1;
191 ar71xx_mdio_resources[0].start = AR71XX_GE1_BASE;
192 ar71xx_mdio_resources[0].end = AR71XX_GE1_BASE + 0x200 - 1;
198 ar71xx_mdio_data.phy_mask = phy_mask;
200 platform_device_register(&ar71xx_mdio_device);
203 struct ar71xx_eth_pll_data ar71xx_eth0_pll_data;
204 struct ar71xx_eth_pll_data ar71xx_eth1_pll_data;
206 static u32 ar71xx_get_eth_pll(unsigned int mac, int speed)
208 struct ar71xx_eth_pll_data *pll_data;
213 pll_data = &ar71xx_eth0_pll_data;
216 pll_data = &ar71xx_eth1_pll_data;
224 pll_val = pll_data->pll_10;
227 pll_val = pll_data->pll_100;
230 pll_val = pll_data->pll_1000;
239 static void ar71xx_set_pll_ge0(int speed)
241 u32 val = ar71xx_get_eth_pll(0, speed);
243 ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH0_INT_CLOCK,
244 val, AR71XX_ETH0_PLL_SHIFT);
247 static void ar71xx_set_pll_ge1(int speed)
249 u32 val = ar71xx_get_eth_pll(1, speed);
251 ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH1_INT_CLOCK,
252 val, AR71XX_ETH1_PLL_SHIFT);
255 static void ar724x_set_pll_ge0(int speed)
260 static void ar724x_set_pll_ge1(int speed)
265 static void ar7242_set_pll_ge0(int speed)
267 u32 val = ar71xx_get_eth_pll(0, speed);
269 ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR7242_PLL_REG_ETH0_INT_CLOCK,
270 val, AR71XX_ETH0_PLL_SHIFT);
273 static void ar91xx_set_pll_ge0(int speed)
275 u32 val = ar71xx_get_eth_pll(0, speed);
277 ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH0_INT_CLOCK,
278 val, AR91XX_ETH0_PLL_SHIFT);
281 static void ar91xx_set_pll_ge1(int speed)
283 u32 val = ar71xx_get_eth_pll(1, speed);
285 ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH1_INT_CLOCK,
286 val, AR91XX_ETH1_PLL_SHIFT);
289 static void ar933x_set_pll_ge0(int speed)
294 static void ar933x_set_pll_ge1(int speed)
299 static void ar71xx_ddr_flush_ge0(void)
301 ar71xx_ddr_flush(AR71XX_DDR_REG_FLUSH_GE0);
304 static void ar71xx_ddr_flush_ge1(void)
306 ar71xx_ddr_flush(AR71XX_DDR_REG_FLUSH_GE1);
309 static void ar724x_ddr_flush_ge0(void)
311 ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_GE0);
314 static void ar724x_ddr_flush_ge1(void)
316 ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_GE1);
319 static void ar91xx_ddr_flush_ge0(void)
321 ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_GE0);
324 static void ar91xx_ddr_flush_ge1(void)
326 ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_GE1);
329 static void ar933x_ddr_flush_ge0(void)
331 ar71xx_ddr_flush(AR933X_DDR_REG_FLUSH_GE0);
334 static void ar933x_ddr_flush_ge1(void)
336 ar71xx_ddr_flush(AR933X_DDR_REG_FLUSH_GE1);
339 static struct resource ar71xx_eth0_resources[] = {
342 .flags = IORESOURCE_MEM,
343 .start = AR71XX_GE0_BASE,
344 .end = AR71XX_GE0_BASE + 0x200 - 1,
347 .flags = IORESOURCE_MEM,
348 .start = AR71XX_MII_BASE + MII_REG_MII0_CTRL,
349 .end = AR71XX_MII_BASE + MII_REG_MII0_CTRL + 3,
352 .flags = IORESOURCE_IRQ,
353 .start = AR71XX_CPU_IRQ_GE0,
354 .end = AR71XX_CPU_IRQ_GE0,
358 struct ag71xx_platform_data ar71xx_eth0_data = {
359 .reset_bit = RESET_MODULE_GE0_MAC,
362 struct platform_device ar71xx_eth0_device = {
365 .resource = ar71xx_eth0_resources,
366 .num_resources = ARRAY_SIZE(ar71xx_eth0_resources),
368 .platform_data = &ar71xx_eth0_data,
372 static struct resource ar71xx_eth1_resources[] = {
375 .flags = IORESOURCE_MEM,
376 .start = AR71XX_GE1_BASE,
377 .end = AR71XX_GE1_BASE + 0x200 - 1,
380 .flags = IORESOURCE_MEM,
381 .start = AR71XX_MII_BASE + MII_REG_MII1_CTRL,
382 .end = AR71XX_MII_BASE + MII_REG_MII1_CTRL + 3,
385 .flags = IORESOURCE_IRQ,
386 .start = AR71XX_CPU_IRQ_GE1,
387 .end = AR71XX_CPU_IRQ_GE1,
391 struct ag71xx_platform_data ar71xx_eth1_data = {
392 .reset_bit = RESET_MODULE_GE1_MAC,
395 struct platform_device ar71xx_eth1_device = {
398 .resource = ar71xx_eth1_resources,
399 .num_resources = ARRAY_SIZE(ar71xx_eth1_resources),
401 .platform_data = &ar71xx_eth1_data,
405 #define AR71XX_PLL_VAL_1000 0x00110000
406 #define AR71XX_PLL_VAL_100 0x00001099
407 #define AR71XX_PLL_VAL_10 0x00991099
409 #define AR724X_PLL_VAL_1000 0x00110000
410 #define AR724X_PLL_VAL_100 0x00001099
411 #define AR724X_PLL_VAL_10 0x00991099
413 #define AR7242_PLL_VAL_1000 0x1c000000
414 #define AR7242_PLL_VAL_100 0x00000101
415 #define AR7242_PLL_VAL_10 0x00001616
417 #define AR91XX_PLL_VAL_1000 0x1a000000
418 #define AR91XX_PLL_VAL_100 0x13000a44
419 #define AR91XX_PLL_VAL_10 0x00441099
421 #define AR933X_PLL_VAL_1000 0x00110000
422 #define AR933X_PLL_VAL_100 0x00001099
423 #define AR933X_PLL_VAL_10 0x00991099
425 static void __init ar71xx_init_eth_pll_data(unsigned int id)
427 struct ar71xx_eth_pll_data *pll_data;
428 u32 pll_10, pll_100, pll_1000;
432 pll_data = &ar71xx_eth0_pll_data;
435 pll_data = &ar71xx_eth1_pll_data;
441 switch (ar71xx_soc) {
442 case AR71XX_SOC_AR7130:
443 case AR71XX_SOC_AR7141:
444 case AR71XX_SOC_AR7161:
445 pll_10 = AR71XX_PLL_VAL_10;
446 pll_100 = AR71XX_PLL_VAL_100;
447 pll_1000 = AR71XX_PLL_VAL_1000;
450 case AR71XX_SOC_AR7240:
451 case AR71XX_SOC_AR7241:
452 pll_10 = AR724X_PLL_VAL_10;
453 pll_100 = AR724X_PLL_VAL_100;
454 pll_1000 = AR724X_PLL_VAL_1000;
457 case AR71XX_SOC_AR7242:
458 pll_10 = AR7242_PLL_VAL_10;
459 pll_100 = AR7242_PLL_VAL_100;
460 pll_1000 = AR7242_PLL_VAL_1000;
463 case AR71XX_SOC_AR9130:
464 case AR71XX_SOC_AR9132:
465 pll_10 = AR91XX_PLL_VAL_10;
466 pll_100 = AR91XX_PLL_VAL_100;
467 pll_1000 = AR91XX_PLL_VAL_1000;
470 case AR71XX_SOC_AR9330:
471 case AR71XX_SOC_AR9331:
472 pll_10 = AR933X_PLL_VAL_10;
473 pll_100 = AR933X_PLL_VAL_100;
474 pll_1000 = AR933X_PLL_VAL_1000;
481 if (!pll_data->pll_10)
482 pll_data->pll_10 = pll_10;
484 if (!pll_data->pll_100)
485 pll_data->pll_100 = pll_100;
487 if (!pll_data->pll_1000)
488 pll_data->pll_1000 = pll_1000;
491 static int ar71xx_eth_instance __initdata;
492 void __init ar71xx_add_device_eth(unsigned int id)
494 struct platform_device *pdev;
495 struct ag71xx_platform_data *pdata;
497 ar71xx_init_eth_pll_data(id);
501 switch (ar71xx_eth0_data.phy_if_mode) {
502 case PHY_INTERFACE_MODE_MII:
503 ar71xx_eth0_data.mii_if = MII0_CTRL_IF_MII;
505 case PHY_INTERFACE_MODE_GMII:
506 ar71xx_eth0_data.mii_if = MII0_CTRL_IF_GMII;
508 case PHY_INTERFACE_MODE_RGMII:
509 ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RGMII;
511 case PHY_INTERFACE_MODE_RMII:
512 ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RMII;
515 printk(KERN_ERR "ar71xx: invalid PHY interface mode "
519 pdev = &ar71xx_eth0_device;
522 switch (ar71xx_eth1_data.phy_if_mode) {
523 case PHY_INTERFACE_MODE_RMII:
524 ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RMII;
526 case PHY_INTERFACE_MODE_RGMII:
527 ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RGMII;
530 printk(KERN_ERR "ar71xx: invalid PHY interface mode "
534 pdev = &ar71xx_eth1_device;
537 printk(KERN_ERR "ar71xx: invalid ethernet id %d\n", id);
541 pdata = pdev->dev.platform_data;
543 switch (ar71xx_soc) {
544 case AR71XX_SOC_AR7130:
545 pdata->ddr_flush = id ? ar71xx_ddr_flush_ge1
546 : ar71xx_ddr_flush_ge0;
547 pdata->set_pll = id ? ar71xx_set_pll_ge1
548 : ar71xx_set_pll_ge0;
551 case AR71XX_SOC_AR7141:
552 case AR71XX_SOC_AR7161:
553 pdata->ddr_flush = id ? ar71xx_ddr_flush_ge1
554 : ar71xx_ddr_flush_ge0;
555 pdata->set_pll = id ? ar71xx_set_pll_ge1
556 : ar71xx_set_pll_ge0;
560 case AR71XX_SOC_AR7242:
561 ar71xx_eth0_data.reset_bit |= AR724X_RESET_GE0_MDIO |
562 RESET_MODULE_GE0_PHY;
563 ar71xx_eth1_data.reset_bit |= AR724X_RESET_GE1_MDIO |
564 RESET_MODULE_GE1_PHY;
565 pdata->ddr_flush = id ? ar724x_ddr_flush_ge1
566 : ar724x_ddr_flush_ge0;
567 pdata->set_pll = id ? ar724x_set_pll_ge1
568 : ar7242_set_pll_ge0;
570 pdata->is_ar724x = 1;
572 if (!pdata->fifo_cfg1)
573 pdata->fifo_cfg1 = 0x0010ffff;
574 if (!pdata->fifo_cfg2)
575 pdata->fifo_cfg2 = 0x015500aa;
576 if (!pdata->fifo_cfg3)
577 pdata->fifo_cfg3 = 0x01f00140;
580 case AR71XX_SOC_AR7241:
581 ar71xx_eth0_data.reset_bit |= AR724X_RESET_GE0_MDIO;
582 ar71xx_eth1_data.reset_bit |= AR724X_RESET_GE1_MDIO;
584 case AR71XX_SOC_AR7240:
585 ar71xx_eth0_data.reset_bit |= RESET_MODULE_GE0_PHY;
586 ar71xx_eth1_data.reset_bit |= RESET_MODULE_GE1_PHY;
587 pdata->ddr_flush = id ? ar724x_ddr_flush_ge1
588 : ar724x_ddr_flush_ge0;
589 pdata->set_pll = id ? ar724x_set_pll_ge1
590 : ar724x_set_pll_ge0;
591 pdata->is_ar724x = 1;
593 if (!pdata->fifo_cfg1)
594 pdata->fifo_cfg1 = 0x0010ffff;
595 if (!pdata->fifo_cfg2)
596 pdata->fifo_cfg2 = 0x015500aa;
597 if (!pdata->fifo_cfg3)
598 pdata->fifo_cfg3 = 0x01f00140;
601 case AR71XX_SOC_AR9130:
602 pdata->ddr_flush = id ? ar91xx_ddr_flush_ge1
603 : ar91xx_ddr_flush_ge0;
604 pdata->set_pll = id ? ar91xx_set_pll_ge1
605 : ar91xx_set_pll_ge0;
606 pdata->is_ar91xx = 1;
609 case AR71XX_SOC_AR9132:
610 pdata->ddr_flush = id ? ar91xx_ddr_flush_ge1
611 : ar91xx_ddr_flush_ge0;
612 pdata->set_pll = id ? ar91xx_set_pll_ge1
613 : ar91xx_set_pll_ge0;
614 pdata->is_ar91xx = 1;
618 case AR71XX_SOC_AR9330:
619 case AR71XX_SOC_AR9331:
620 ar71xx_eth0_data.reset_bit = AR933X_RESET_GE0_MAC |
621 AR933X_RESET_GE0_MDIO;
622 ar71xx_eth1_data.reset_bit = AR933X_RESET_GE1_MAC |
623 AR933X_RESET_GE1_MDIO;
624 pdata->ddr_flush = id ? ar933x_ddr_flush_ge1
625 : ar933x_ddr_flush_ge0;
626 pdata->set_pll = id ? ar933x_set_pll_ge1
627 : ar933x_set_pll_ge0;
629 pdata->is_ar724x = 1;
631 if (!pdata->fifo_cfg1)
632 pdata->fifo_cfg1 = 0x0010ffff;
633 if (!pdata->fifo_cfg2)
634 pdata->fifo_cfg2 = 0x015500aa;
635 if (!pdata->fifo_cfg3)
636 pdata->fifo_cfg3 = 0x01f00140;
643 switch (pdata->phy_if_mode) {
644 case PHY_INTERFACE_MODE_GMII:
645 case PHY_INTERFACE_MODE_RGMII:
646 if (!pdata->has_gbit) {
647 printk(KERN_ERR "ar71xx: no gbit available on eth%d\n",
656 if (!is_valid_ether_addr(pdata->mac_addr)) {
657 random_ether_addr(pdata->mac_addr);
659 "ar71xx: using random MAC address for eth%d\n",
660 ar71xx_eth_instance);
663 if (pdata->mii_bus_dev == NULL)
664 pdata->mii_bus_dev = &ar71xx_mdio_device.dev;
666 /* Reset the device */
667 ar71xx_device_stop(pdata->reset_bit);
670 ar71xx_device_start(pdata->reset_bit);
673 platform_device_register(pdev);
674 ar71xx_eth_instance++;
677 static struct resource ar71xx_spi_resources[] = {
679 .start = AR71XX_SPI_BASE,
680 .end = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
681 .flags = IORESOURCE_MEM,
685 static struct platform_device ar71xx_spi_device = {
686 .name = "ar71xx-spi",
688 .resource = ar71xx_spi_resources,
689 .num_resources = ARRAY_SIZE(ar71xx_spi_resources),
692 void __init ar71xx_add_device_spi(struct ar71xx_spi_platform_data *pdata,
693 struct spi_board_info const *info,
696 spi_register_board_info(info, n);
697 ar71xx_spi_device.dev.platform_data = pdata;
698 platform_device_register(&ar71xx_spi_device);
701 void __init ar71xx_add_device_wdt(void)
703 platform_device_register_simple("ar71xx-wdt", -1, NULL, 0);
706 void __init ar71xx_set_mac_base(unsigned char *mac)
708 memcpy(ar71xx_mac_base, mac, ETH_ALEN);
711 void __init ar71xx_parse_mac_addr(char *mac_str)
716 t = sscanf(mac_str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
717 &tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
720 t = sscanf(mac_str, "%02hhx.%02hhx.%02hhx.%02hhx.%02hhx.%02hhx",
721 &tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
724 ar71xx_set_mac_base(tmp);
726 printk(KERN_DEBUG "ar71xx: failed to parse mac address "
727 "\"%s\"\n", mac_str);
730 static int __init ar71xx_ethaddr_setup(char *str)
732 ar71xx_parse_mac_addr(str);
735 __setup("ethaddr=", ar71xx_ethaddr_setup);
737 static int __init ar71xx_kmac_setup(char *str)
739 ar71xx_parse_mac_addr(str);
742 __setup("kmac=", ar71xx_kmac_setup);
744 void __init ar71xx_init_mac(unsigned char *dst, const unsigned char *src,
749 if (!is_valid_ether_addr(src)) {
750 memset(dst, '\0', ETH_ALEN);
754 t = (((u32) src[3]) << 16) + (((u32) src[4]) << 8) + ((u32) src[5]);
760 dst[3] = (t >> 16) & 0xff;
761 dst[4] = (t >> 8) & 0xff;