[ar71xx] rename platform.c to devices.c
[openwrt.git] / target / linux / ar71xx / files / arch / mips / ar71xx / devices.c
1 /*
2  *  Atheros AR71xx SoC platform devices
3  *
4  *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
5  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
6  *
7  *  Parts of this file are based on Atheros' 2.6.15 BSP
8  *
9  *  This program is free software; you can redistribute it and/or modify it
10  *  under the terms of the GNU General Public License version 2 as published
11  *  by the Free Software Foundation.
12  */
13
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
17 #include <linux/dma-mapping.h>
18 #include <linux/etherdevice.h>
19 #include <linux/platform_device.h>
20 #include <linux/serial_8250.h>
21 #include <linux/ath9k_platform.h>
22
23 #include <asm/mach-ar71xx/ar71xx.h>
24 #include <asm/mach-ar71xx/platform.h>
25
26 static u8 ar71xx_mac_base[ETH_ALEN] __initdata;
27
28 /*
29  * OHCI (USB full speed host controller)
30  */
31 static struct resource ar71xx_ohci_resources[] = {
32         [0] = {
33                 .start  = AR71XX_OHCI_BASE,
34                 .end    = AR71XX_OHCI_BASE + AR71XX_OHCI_SIZE - 1,
35                 .flags  = IORESOURCE_MEM,
36         },
37         [1] = {
38                 .start  = AR71XX_MISC_IRQ_OHCI,
39                 .end    = AR71XX_MISC_IRQ_OHCI,
40                 .flags  = IORESOURCE_IRQ,
41         },
42 };
43
44 static u64 ar71xx_ohci_dmamask = DMA_BIT_MASK(32);
45 static struct platform_device ar71xx_ohci_device = {
46         .name           = "ar71xx-ohci",
47         .id             = -1,
48         .resource       = ar71xx_ohci_resources,
49         .num_resources  = ARRAY_SIZE(ar71xx_ohci_resources),
50         .dev = {
51                 .dma_mask               = &ar71xx_ohci_dmamask,
52                 .coherent_dma_mask      = DMA_BIT_MASK(32),
53         },
54 };
55
56 /*
57  * EHCI (USB full speed host controller)
58  */
59 static struct resource ar71xx_ehci_resources[] = {
60         [0] = {
61                 .start  = AR71XX_EHCI_BASE,
62                 .end    = AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1,
63                 .flags  = IORESOURCE_MEM,
64         },
65         [1] = {
66                 .start  = AR71XX_CPU_IRQ_USB,
67                 .end    = AR71XX_CPU_IRQ_USB,
68                 .flags  = IORESOURCE_IRQ,
69         },
70 };
71
72
73 static u64 ar71xx_ehci_dmamask = DMA_BIT_MASK(32);
74 static struct ar71xx_ehci_platform_data ar71xx_ehci_data;
75
76 static struct platform_device ar71xx_ehci_device = {
77         .name           = "ar71xx-ehci",
78         .id             = -1,
79         .resource       = ar71xx_ehci_resources,
80         .num_resources  = ARRAY_SIZE(ar71xx_ehci_resources),
81         .dev = {
82                 .dma_mask               = &ar71xx_ehci_dmamask,
83                 .coherent_dma_mask      = DMA_BIT_MASK(32),
84                 .platform_data          = &ar71xx_ehci_data,
85         },
86 };
87
88 #define AR71XX_USB_RESET_MASK \
89         (RESET_MODULE_USB_HOST | RESET_MODULE_USB_PHY \
90         | RESET_MODULE_USB_OHCI_DLL)
91
92 static void ar71xx_usb_setup(void)
93 {
94         ar71xx_device_stop(AR71XX_USB_RESET_MASK);
95         mdelay(1000);
96         ar71xx_device_start(AR71XX_USB_RESET_MASK);
97
98         /* Turning on the Buff and Desc swap bits */
99         ar71xx_usb_ctrl_wr(USB_CTRL_REG_CONFIG, 0xf0000);
100
101         /* WAR for HW bug. Here it adjusts the duration between two SOFS */
102         ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ, 0x20c00);
103
104         mdelay(900);
105 }
106
107 static void ar91xx_usb_setup(void)
108 {
109         ar71xx_device_stop(RESET_MODULE_USBSUS_OVERRIDE);
110         mdelay(10);
111
112         ar71xx_device_start(RESET_MODULE_USB_HOST);
113         mdelay(10);
114
115         ar71xx_device_start(RESET_MODULE_USB_PHY);
116         mdelay(10);
117 }
118
119 void __init ar71xx_add_device_usb(void)
120 {
121         switch (ar71xx_soc) {
122         case AR71XX_SOC_AR7130:
123         case AR71XX_SOC_AR7141:
124         case AR71XX_SOC_AR7161:
125                 ar71xx_usb_setup();
126                 platform_device_register(&ar71xx_ohci_device);
127                 platform_device_register(&ar71xx_ehci_device);
128                 break;
129
130         case AR71XX_SOC_AR9130:
131         case AR71XX_SOC_AR9132:
132                 ar91xx_usb_setup();
133                 ar71xx_ehci_data.is_ar91xx = 1;
134                 platform_device_register(&ar71xx_ehci_device);
135                 break;
136
137         default:
138                 BUG();
139         }
140 }
141
142 #ifndef CONFIG_AR71XX_EARLY_SERIAL
143 static struct resource ar71xx_uart_resources[] = {
144         {
145                 .start  = AR71XX_UART_BASE,
146                 .end    = AR71XX_UART_BASE + AR71XX_UART_SIZE - 1,
147                 .flags  = IORESOURCE_MEM,
148         },
149 };
150
151 #define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
152 static struct plat_serial8250_port ar71xx_uart_data[] = {
153         {
154                 .mapbase        = AR71XX_UART_BASE,
155                 .irq            = AR71XX_MISC_IRQ_UART,
156                 .flags          = AR71XX_UART_FLAGS,
157                 .iotype         = UPIO_MEM32,
158                 .regshift       = 2,
159         }, {
160                 /* terminating entry */
161         }
162 };
163
164 static struct platform_device ar71xx_uart_device = {
165         .name           = "serial8250",
166         .id             = PLAT8250_DEV_PLATFORM,
167         .resource       = ar71xx_uart_resources,
168         .num_resources  = ARRAY_SIZE(ar71xx_uart_resources),
169         .dev = {
170                 .platform_data  = ar71xx_uart_data
171         },
172 };
173
174 void __init ar71xx_add_device_uart(void)
175 {
176         ar71xx_uart_data[0].uartclk = ar71xx_ahb_freq;
177         platform_device_register(&ar71xx_uart_device);
178 }
179 #endif /* CONFIG_AR71XX_EARLY_SERIAL */
180
181 static struct resource ar71xx_mdio_resources[] = {
182         {
183                 .name   = "mdio_base",
184                 .flags  = IORESOURCE_MEM,
185                 .start  = AR71XX_GE0_BASE + 0x20,
186                 .end    = AR71XX_GE0_BASE + 0x38 - 1,
187         }
188 };
189
190 static struct ag71xx_mdio_platform_data ar71xx_mdio_data = {
191         .phy_mask       = 0xffffffff,
192 };
193
194 static struct platform_device ar71xx_mdio_device = {
195         .name           = "ag71xx-mdio",
196         .id             = -1,
197         .resource       = ar71xx_mdio_resources,
198         .num_resources  = ARRAY_SIZE(ar71xx_mdio_resources),
199         .dev = {
200                 .platform_data = &ar71xx_mdio_data,
201         },
202 };
203
204 void __init ar71xx_add_device_mdio(u32 phy_mask)
205 {
206         ar71xx_mdio_data.phy_mask = phy_mask;
207         platform_device_register(&ar71xx_mdio_device);
208 }
209
210 static void ar71xx_set_pll(u32 cfg_reg, u32 pll_reg, u32 pll_val, u32 shift)
211 {
212         void __iomem *base;
213         u32 t;
214
215         base = ioremap_nocache(AR71XX_PLL_BASE, AR71XX_PLL_SIZE);
216
217         t = __raw_readl(base + cfg_reg);
218         t &= ~(3 << shift);
219         t |=  (2 << shift);
220         __raw_writel(t, base + cfg_reg);
221         udelay(100);
222
223         __raw_writel(pll_val, base + pll_reg);
224
225         t |= (3 << shift);
226         __raw_writel(t, base + cfg_reg);
227         udelay(100);
228
229         t &= ~(3 << shift);
230         __raw_writel(t, base + cfg_reg);
231         udelay(100);
232
233         printk(KERN_DEBUG "ar71xx: pll_reg %#x: %#x\n",
234                 (unsigned int)(base + pll_reg), __raw_readl(base + pll_reg));
235
236         iounmap(base);
237 }
238
239 static void ar71xx_set_pll_ge0(u32 val)
240 {
241         ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH0_INT_CLOCK,
242                         val, AR71XX_ETH0_PLL_SHIFT);
243 }
244
245 static void ar71xx_set_pll_ge1(u32 val)
246 {
247         ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH1_INT_CLOCK,
248                          val, AR71XX_ETH1_PLL_SHIFT);
249 }
250
251 static void ar91xx_set_pll_ge0(u32 val)
252 {
253         ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH0_INT_CLOCK,
254                          val, AR91XX_ETH0_PLL_SHIFT);
255 }
256
257 static void ar91xx_set_pll_ge1(u32 val)
258 {
259         ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH1_INT_CLOCK,
260                          val, AR91XX_ETH1_PLL_SHIFT);
261 }
262
263 static void ar71xx_ddr_flush_ge0(void)
264 {
265         ar71xx_ddr_flush(AR71XX_DDR_REG_FLUSH_GE0);
266 }
267
268 static void ar71xx_ddr_flush_ge1(void)
269 {
270         ar71xx_ddr_flush(AR71XX_DDR_REG_FLUSH_GE1);
271 }
272
273 static void ar91xx_ddr_flush_ge0(void)
274 {
275         ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_GE0);
276 }
277
278 static void ar91xx_ddr_flush_ge1(void)
279 {
280         ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_GE1);
281 }
282
283 static struct resource ar71xx_eth0_resources[] = {
284         {
285                 .name   = "mac_base",
286                 .flags  = IORESOURCE_MEM,
287                 .start  = AR71XX_GE0_BASE,
288                 .end    = AR71XX_GE0_BASE + 0x20 - 1,
289         }, {
290                 .name   = "mac_base2",
291                 .flags  = IORESOURCE_MEM,
292                 .start  = AR71XX_GE0_BASE + 0x38,
293                 .end    = AR71XX_GE0_BASE + 0x200 - 1,
294         }, {
295                 .name   = "mii_ctrl",
296                 .flags  = IORESOURCE_MEM,
297                 .start  = AR71XX_MII_BASE + MII_REG_MII0_CTRL,
298                 .end    = AR71XX_MII_BASE + MII_REG_MII0_CTRL + 3,
299         }, {
300                 .name   = "mac_irq",
301                 .flags  = IORESOURCE_IRQ,
302                 .start  = AR71XX_CPU_IRQ_GE0,
303                 .end    = AR71XX_CPU_IRQ_GE0,
304         },
305 };
306
307 struct ag71xx_platform_data ar71xx_eth0_data = {
308         .reset_bit      = RESET_MODULE_GE0_MAC,
309 };
310
311 static struct platform_device ar71xx_eth0_device = {
312         .name           = "ag71xx",
313         .id             = 0,
314         .resource       = ar71xx_eth0_resources,
315         .num_resources  = ARRAY_SIZE(ar71xx_eth0_resources),
316         .dev = {
317                 .platform_data = &ar71xx_eth0_data,
318         },
319 };
320
321 static struct resource ar71xx_eth1_resources[] = {
322         {
323                 .name   = "mac_base",
324                 .flags  = IORESOURCE_MEM,
325                 .start  = AR71XX_GE1_BASE,
326                 .end    = AR71XX_GE1_BASE + 0x20 - 1,
327         }, {
328                 .name   = "mac_base2",
329                 .flags  = IORESOURCE_MEM,
330                 .start  = AR71XX_GE1_BASE + 0x38,
331                 .end    = AR71XX_GE1_BASE + 0x200 - 1,
332         }, {
333                 .name   = "mii_ctrl",
334                 .flags  = IORESOURCE_MEM,
335                 .start  = AR71XX_MII_BASE + MII_REG_MII1_CTRL,
336                 .end    = AR71XX_MII_BASE + MII_REG_MII1_CTRL + 3,
337         }, {
338                 .name   = "mac_irq",
339                 .flags  = IORESOURCE_IRQ,
340                 .start  = AR71XX_CPU_IRQ_GE1,
341                 .end    = AR71XX_CPU_IRQ_GE1,
342         },
343 };
344
345 struct ag71xx_platform_data ar71xx_eth1_data = {
346         .reset_bit      = RESET_MODULE_GE1_MAC,
347 };
348
349 static struct platform_device ar71xx_eth1_device = {
350         .name           = "ag71xx",
351         .id             = 1,
352         .resource       = ar71xx_eth1_resources,
353         .num_resources  = ARRAY_SIZE(ar71xx_eth1_resources),
354         .dev = {
355                 .platform_data = &ar71xx_eth1_data,
356         },
357 };
358
359 static int ar71xx_eth_instance __initdata;
360 void __init ar71xx_add_device_eth(unsigned int id)
361 {
362         struct platform_device *pdev;
363         struct ag71xx_platform_data *pdata;
364
365         switch (id) {
366         case 0:
367                 switch (ar71xx_eth0_data.phy_if_mode) {
368                 case PHY_INTERFACE_MODE_MII:
369                         ar71xx_eth0_data.mii_if = MII0_CTRL_IF_MII;
370                         break;
371                 case PHY_INTERFACE_MODE_GMII:
372                         ar71xx_eth0_data.mii_if = MII0_CTRL_IF_GMII;
373                         break;
374                 case PHY_INTERFACE_MODE_RGMII:
375                         ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RGMII;
376                         break;
377                 case PHY_INTERFACE_MODE_RMII:
378                         ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RMII;
379                         break;
380                 default:
381                         printk(KERN_ERR "ar71xx: invalid PHY interface mode "
382                                         "for eth0\n");
383                         return;
384                 }
385                 pdev = &ar71xx_eth0_device;
386                 break;
387         case 1:
388                 switch (ar71xx_eth1_data.phy_if_mode) {
389                 case PHY_INTERFACE_MODE_RMII:
390                         ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RMII;
391                         break;
392                 case PHY_INTERFACE_MODE_RGMII:
393                         ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RGMII;
394                         break;
395                 default:
396                         printk(KERN_ERR "ar71xx: invalid PHY interface mode "
397                                         "for eth1\n");
398                         return;
399                 }
400                 pdev = &ar71xx_eth1_device;
401                 break;
402         default:
403                 printk(KERN_ERR "ar71xx: invalid ethernet id %d\n", id);
404                 return;
405         }
406
407         pdata = pdev->dev.platform_data;
408
409         switch (ar71xx_soc) {
410         case AR71XX_SOC_AR7130:
411                 pdata->ddr_flush = id ? ar71xx_ddr_flush_ge1
412                                       : ar71xx_ddr_flush_ge0;
413                 pdata->set_pll =  id ? ar71xx_set_pll_ge1
414                                      : ar71xx_set_pll_ge0;
415                 break;
416
417         case AR71XX_SOC_AR7141:
418         case AR71XX_SOC_AR7161:
419                 pdata->ddr_flush = id ? ar71xx_ddr_flush_ge1
420                                       : ar71xx_ddr_flush_ge0;
421                 pdata->set_pll =  id ? ar71xx_set_pll_ge1
422                                      : ar71xx_set_pll_ge0;
423                 pdata->has_gbit = 1;
424                 break;
425
426         case AR71XX_SOC_AR9130:
427                 pdata->ddr_flush = id ? ar91xx_ddr_flush_ge1
428                                       : ar91xx_ddr_flush_ge0;
429                 pdata->set_pll =  id ? ar91xx_set_pll_ge1
430                                      : ar91xx_set_pll_ge0;
431                 pdata->is_ar91xx = 1;
432                 break;
433
434         case AR71XX_SOC_AR9132:
435                 pdata->ddr_flush = id ? ar91xx_ddr_flush_ge1
436                                       : ar91xx_ddr_flush_ge0;
437                 pdata->set_pll =  id ? ar91xx_set_pll_ge1
438                                       : ar91xx_set_pll_ge0;
439                 pdata->is_ar91xx = 1;
440                 pdata->has_gbit = 1;
441                 break;
442
443         default:
444                 BUG();
445         }
446
447         switch (pdata->phy_if_mode) {
448         case PHY_INTERFACE_MODE_GMII:
449         case PHY_INTERFACE_MODE_RGMII:
450                 if (!pdata->has_gbit) {
451                         printk(KERN_ERR "ar71xx: no gbit available on eth%d\n",
452                                         id);
453                         return;
454                 }
455                 /* fallthrough */
456         default:
457                 break;
458         }
459
460         if (is_valid_ether_addr(ar71xx_mac_base)) {
461                 memcpy(pdata->mac_addr, ar71xx_mac_base, ETH_ALEN);
462                 pdata->mac_addr[5] += ar71xx_eth_instance;
463         } else {
464                 random_ether_addr(pdata->mac_addr);
465                 printk(KERN_DEBUG
466                         "ar71xx: using random MAC address for eth%d\n",
467                         ar71xx_eth_instance);
468         }
469
470         platform_device_register(pdev);
471         ar71xx_eth_instance++;
472 }
473
474 static struct resource ar71xx_spi_resources[] = {
475         [0] = {
476                 .start  = AR71XX_SPI_BASE,
477                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
478                 .flags  = IORESOURCE_MEM,
479         },
480 };
481
482 static struct platform_device ar71xx_spi_device = {
483         .name           = "ar71xx-spi",
484         .id             = -1,
485         .resource       = ar71xx_spi_resources,
486         .num_resources  = ARRAY_SIZE(ar71xx_spi_resources),
487 };
488
489 void __init ar71xx_add_device_spi(struct ar71xx_spi_platform_data *pdata,
490                                 struct spi_board_info const *info,
491                                 unsigned n)
492 {
493         spi_register_board_info(info, n);
494         ar71xx_spi_device.dev.platform_data = pdata;
495         platform_device_register(&ar71xx_spi_device);
496 }
497
498 void __init ar71xx_add_device_leds_gpio(int id, unsigned num_leds,
499                                 struct gpio_led *leds)
500 {
501         struct platform_device *pdev;
502         struct gpio_led_platform_data pdata;
503         struct gpio_led *p;
504         int err;
505
506         p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL);
507         if (!p)
508                 return;
509
510         memcpy(p, leds, num_leds * sizeof(*p));
511
512         pdev = platform_device_alloc("leds-gpio", id);
513         if (!pdev)
514                 goto err_free_leds;
515
516         memset(&pdata, 0, sizeof(pdata));
517         pdata.num_leds = num_leds;
518         pdata.leds = p;
519
520         err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
521         if (err)
522                 goto err_put_pdev;
523
524         err = platform_device_add(pdev);
525         if (err)
526                 goto err_put_pdev;
527
528         return;
529
530 err_put_pdev:
531         platform_device_put(pdev);
532
533 err_free_leds:
534         kfree(p);
535 }
536
537 void __init ar71xx_add_device_gpio_buttons(int id,
538                                            unsigned poll_interval,
539                                            unsigned nbuttons,
540                                            struct gpio_button *buttons)
541 {
542         struct platform_device *pdev;
543         struct gpio_buttons_platform_data pdata;
544         struct gpio_button *p;
545         int err;
546
547         p = kmalloc(nbuttons * sizeof(*p), GFP_KERNEL);
548         if (!p)
549                 return;
550
551         memcpy(p, buttons, nbuttons * sizeof(*p));
552
553         pdev = platform_device_alloc("gpio-buttons", id);
554         if (!pdev)
555                 goto err_free_buttons;
556
557         memset(&pdata, 0, sizeof(pdata));
558         pdata.poll_interval = poll_interval;
559         pdata.nbuttons = nbuttons;
560         pdata.buttons = p;
561
562         err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
563         if (err)
564                 goto err_put_pdev;
565
566
567         err = platform_device_add(pdev);
568         if (err)
569                 goto err_put_pdev;
570
571         return;
572
573 err_put_pdev:
574         platform_device_put(pdev);
575
576 err_free_buttons:
577         kfree(p);
578 }
579
580 void __init ar71xx_add_device_wdt(void)
581 {
582         platform_device_register_simple("ar71xx-wdt", -1, NULL, 0);
583 }
584
585 void __init ar71xx_set_mac_base(unsigned char *mac)
586 {
587         memcpy(ar71xx_mac_base, mac, ETH_ALEN);
588 }
589
590 void __init ar71xx_parse_mac_addr(char *mac_str)
591 {
592         u8 tmp[ETH_ALEN];
593         int t;
594
595         t = sscanf(mac_str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
596                         &tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
597
598         if (t != ETH_ALEN)
599                 t = sscanf(mac_str, "%02hhx.%02hhx.%02hhx.%02hhx.%02hhx.%02hhx",
600                         &tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
601
602         if (t == ETH_ALEN)
603                 ar71xx_set_mac_base(tmp);
604         else
605                 printk(KERN_DEBUG "ar71xx: failed to parse mac address "
606                                 "\"%s\"\n", mac_str);
607 }
608
609 static struct resource ar91xx_wmac_resources[] = {
610         {
611                 .start  = AR91XX_WMAC_BASE,
612                 .end    = AR91XX_WMAC_BASE + AR91XX_WMAC_SIZE - 1,
613                 .flags  = IORESOURCE_MEM,
614         }, {
615                 .start  = AR71XX_CPU_IRQ_WMAC,
616                 .end    = AR71XX_CPU_IRQ_WMAC,
617                 .flags  = IORESOURCE_IRQ,
618         },
619 };
620
621 static struct ath9k_platform_data ar91xx_wmac_data;
622
623 static struct platform_device ar91xx_wmac_device = {
624         .name           = "ath9k",
625         .id             = -1,
626         .resource       = ar91xx_wmac_resources,
627         .num_resources  = ARRAY_SIZE(ar91xx_wmac_resources),
628         .dev = {
629                 .platform_data = &ar91xx_wmac_data,
630         },
631 };
632
633 void __init ar91xx_add_device_wmac(void)
634 {
635         u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
636
637         memcpy(ar91xx_wmac_data.eeprom_data, ee,
638                sizeof(ar91xx_wmac_data.eeprom_data));
639
640         ar71xx_device_stop(RESET_MODULE_AMBA2WMAC);
641         mdelay(10);
642
643         ar71xx_device_start(RESET_MODULE_AMBA2WMAC);
644         mdelay(10);
645
646         platform_device_register(&ar91xx_wmac_device);
647 }