2 * Ralink RT305x SoC platform device registration
4 * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation.
11 #include <linux/kernel.h>
12 #include <linux/platform_device.h>
13 #include <linux/err.h>
14 #include <linux/clk.h>
15 #include <linux/mtd/mtd.h>
16 #include <linux/mtd/physmap.h>
17 #include <linux/spi/spi.h>
18 #include <linux/rt2x00_platform.h>
19 #include <linux/delay.h>
20 #include <linux/dma-mapping.h>
22 #include <asm/addrspace.h>
24 #include <asm/mach-ralink/rt305x.h>
25 #include <asm/mach-ralink/rt305x_regs.h>
28 #include <ramips_eth_platform.h>
29 #include <rt305x_esw_platform.h>
30 #include <rt3883_ehci_platform.h>
31 #include <rt3883_ohci_platform.h>
33 static struct resource rt305x_flash0_resources[] = {
35 .flags = IORESOURCE_MEM,
36 .start = KSEG1ADDR(RT305X_FLASH0_BASE),
37 .end = KSEG1ADDR(RT305X_FLASH0_BASE) +
38 RT305X_FLASH0_SIZE - 1,
42 struct physmap_flash_data rt305x_flash0_data;
43 static struct platform_device rt305x_flash0_device = {
44 .name = "physmap-flash",
45 .resource = rt305x_flash0_resources,
46 .num_resources = ARRAY_SIZE(rt305x_flash0_resources),
48 .platform_data = &rt305x_flash0_data,
52 static struct resource rt305x_flash1_resources[] = {
54 .flags = IORESOURCE_MEM,
55 .start = KSEG1ADDR(RT305X_FLASH1_BASE),
56 .end = KSEG1ADDR(RT305X_FLASH1_BASE) +
57 RT305X_FLASH1_SIZE - 1,
61 struct physmap_flash_data rt305x_flash1_data;
62 static struct platform_device rt305x_flash1_device = {
63 .name = "physmap-flash",
64 .resource = rt305x_flash1_resources,
65 .num_resources = ARRAY_SIZE(rt305x_flash1_resources),
67 .platform_data = &rt305x_flash1_data,
71 static int rt305x_flash_instance __initdata;
72 void __init rt305x_register_flash(unsigned int id)
74 struct platform_device *pdev;
75 struct physmap_flash_data *pdata;
81 pdev = &rt305x_flash0_device;
82 reg = MEMC_REG_FLASH_CFG0;
85 pdev = &rt305x_flash1_device;
86 reg = MEMC_REG_FLASH_CFG1;
92 t = rt305x_memc_rr(reg);
93 t = (t >> FLASH_CFG_WIDTH_SHIFT) & FLASH_CFG_WIDTH_MASK;
95 pdata = pdev->dev.platform_data;
97 case FLASH_CFG_WIDTH_8BIT:
100 case FLASH_CFG_WIDTH_16BIT:
103 case FLASH_CFG_WIDTH_32BIT:
107 printk(KERN_ERR "RT305x: flash bank%u witdh is invalid\n", id);
111 pdev->id = rt305x_flash_instance;
113 platform_device_register(pdev);
114 rt305x_flash_instance++;
117 static void rt305x_fe_reset(void)
119 rt305x_sysc_wr(RT305X_RESET_FE, SYSC_REG_RESET_CTRL);
120 rt305x_sysc_wr(0, SYSC_REG_RESET_CTRL);
123 static struct resource rt305x_eth_resources[] = {
125 .start = RT305X_FE_BASE,
126 .end = RT305X_FE_BASE + PAGE_SIZE - 1,
127 .flags = IORESOURCE_MEM,
129 .start = RT305X_CPU_IRQ_FE,
130 .end = RT305X_CPU_IRQ_FE,
131 .flags = IORESOURCE_IRQ,
135 static struct ramips_eth_platform_data ramips_eth_data = {
136 .mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
137 .reset_fe = rt305x_fe_reset,
141 static struct platform_device rt305x_eth_device = {
142 .name = "ramips_eth",
143 .resource = rt305x_eth_resources,
144 .num_resources = ARRAY_SIZE(rt305x_eth_resources),
146 .platform_data = &ramips_eth_data,
150 static struct resource rt305x_esw_resources[] = {
152 .start = RT305X_SWITCH_BASE,
153 .end = RT305X_SWITCH_BASE + PAGE_SIZE - 1,
154 .flags = IORESOURCE_MEM,
158 struct rt305x_esw_platform_data rt305x_esw_data = {
159 /* All ports are LAN ports. */
160 .vlan_config = RT305X_ESW_VLAN_CONFIG_NONE,
161 .reg_initval_fct2 = 0x00d6500c,
163 * ext phy base addr 31, enable port 5 polling, rx/tx clock skew 1,
164 * turbo mii off, rgmi 3.3v off
166 * port6: enabled, gige, full-duplex, rx/tx-flow-control
168 .reg_initval_fpa2 = 0x3f502b28,
171 static struct platform_device rt305x_esw_device = {
172 .name = "rt305x-esw",
173 .resource = rt305x_esw_resources,
174 .num_resources = ARRAY_SIZE(rt305x_esw_resources),
176 .platform_data = &rt305x_esw_data,
180 void __init rt305x_register_ethernet(void)
184 clk = clk_get(NULL, "sys");
186 panic("unable to get SYS clock, err=%ld", PTR_ERR(clk));
188 ramips_eth_data.sys_freq = clk_get_rate(clk);
190 platform_device_register(&rt305x_esw_device);
191 platform_device_register(&rt305x_eth_device);
194 static struct resource rt305x_wifi_resources[] = {
196 .start = RT305X_WMAC_BASE,
197 .end = RT305X_WMAC_BASE + 0x3FFFF,
198 .flags = IORESOURCE_MEM,
200 .start = RT305X_CPU_IRQ_WNIC,
201 .end = RT305X_CPU_IRQ_WNIC,
202 .flags = IORESOURCE_IRQ,
206 static struct rt2x00_platform_data rt305x_wifi_data;
207 static struct platform_device rt305x_wifi_device = {
208 .name = "rt2800_wmac",
209 .resource = rt305x_wifi_resources,
210 .num_resources = ARRAY_SIZE(rt305x_wifi_resources),
212 .platform_data = &rt305x_wifi_data,
216 void __init rt305x_register_wifi(void)
218 rt305x_wifi_data.eeprom_file_name = "RT305X.eeprom";
219 platform_device_register(&rt305x_wifi_device);
222 static struct resource rt305x_wdt_resources[] = {
224 .start = RT305X_TIMER_BASE,
225 .end = RT305X_TIMER_BASE + RT305X_TIMER_SIZE - 1,
226 .flags = IORESOURCE_MEM,
230 static struct platform_device rt305x_wdt_device = {
231 .name = "ramips-wdt",
233 .resource = rt305x_wdt_resources,
234 .num_resources = ARRAY_SIZE(rt305x_wdt_resources),
237 void __init rt305x_register_wdt(void)
241 /* enable WDT reset output on pin SRAM_CS_N */
242 t = rt305x_sysc_rr(SYSC_REG_SYSTEM_CONFIG);
243 t |= RT305X_SYSCFG_SRAM_CS0_MODE_WDT <<
244 RT305X_SYSCFG_SRAM_CS0_MODE_SHIFT;
245 rt305x_sysc_wr(t, SYSC_REG_SYSTEM_CONFIG);
247 platform_device_register(&rt305x_wdt_device);
250 static struct resource rt305x_spi_resources[] = {
252 .flags = IORESOURCE_MEM,
253 .start = RT305X_SPI_BASE,
254 .end = RT305X_SPI_BASE + RT305X_SPI_SIZE - 1,
258 static struct platform_device rt305x_spi_device = {
259 .name = "ramips-spi",
261 .resource = rt305x_spi_resources,
262 .num_resources = ARRAY_SIZE(rt305x_spi_resources),
265 void __init rt305x_register_spi(struct spi_board_info *info, int n)
267 spi_register_board_info(info, n);
268 platform_device_register(&rt305x_spi_device);
271 static struct resource rt305x_dwc_otg_resources[] = {
273 .start = RT305X_OTG_BASE,
274 .end = RT305X_OTG_BASE + 0x3FFFF,
275 .flags = IORESOURCE_MEM,
277 .start = RT305X_INTC_IRQ_OTG,
278 .end = RT305X_INTC_IRQ_OTG,
279 .flags = IORESOURCE_IRQ,
283 static struct platform_device rt305x_dwc_otg_device = {
285 .resource = rt305x_dwc_otg_resources,
286 .num_resources = ARRAY_SIZE(rt305x_dwc_otg_resources),
288 .platform_data = NULL,
292 static atomic_t rt3352_usb_use_count = ATOMIC_INIT(0);
294 static void rt3352_usb_host_start(void)
298 if (atomic_inc_return(&rt3352_usb_use_count) != 1)
301 t = rt305x_sysc_rr(RT3352_SYSC_REG_USB_PS);
303 /* enable clock for port0's and port1's phys */
304 t = rt305x_sysc_rr(RT3352_SYSC_REG_CLKCFG1);
305 t = t | RT3352_CLKCFG1_UPHY0_CLK_EN | RT3352_CLKCFG1_UPHY1_CLK_EN;
306 rt305x_sysc_wr(t, RT3352_SYSC_REG_CLKCFG1);
309 /* pull USBHOST and USBDEV out from reset */
310 t = rt305x_sysc_rr(RT3352_SYSC_REG_RSTCTRL);
311 t &= ~(RT3352_RSTCTRL_UHST | RT3352_RSTCTRL_UDEV);
312 rt305x_sysc_wr(t, RT3352_SYSC_REG_RSTCTRL);
315 /* enable host mode */
316 t = rt305x_sysc_rr(RT3352_SYSC_REG_SYSCFG1);
317 t |= RT3352_SYSCFG1_USB0_HOST_MODE;
318 rt305x_sysc_wr(t, RT3352_SYSC_REG_SYSCFG1);
320 t = rt305x_sysc_rr(RT3352_SYSC_REG_USB_PS);
323 static void rt3352_usb_host_stop(void)
327 if (atomic_dec_return(&rt3352_usb_use_count) != 0)
330 /* put USBHOST and USBDEV into reset */
331 t = rt305x_sysc_rr(RT3352_SYSC_REG_RSTCTRL);
332 t |= RT3352_RSTCTRL_UHST | RT3352_RSTCTRL_UDEV;
333 rt305x_sysc_wr(t, RT3352_SYSC_REG_RSTCTRL);
336 /* disable clock for port0's and port1's phys*/
337 t = rt305x_sysc_rr(RT3352_SYSC_REG_CLKCFG1);
338 t &= ~(RT3352_CLKCFG1_UPHY0_CLK_EN | RT3352_CLKCFG1_UPHY1_CLK_EN);
339 rt305x_sysc_wr(t, RT3352_SYSC_REG_CLKCFG1);
343 static struct rt3883_ehci_platform_data rt3352_ehci_data = {
344 .start_hw = rt3352_usb_host_start,
345 .stop_hw = rt3352_usb_host_stop,
348 static struct resource rt3352_ehci_resources[] = {
350 .start = RT3352_EHCI_BASE,
351 .end = RT3352_EHCI_BASE + RT3352_EHCI_SIZE - 1,
352 .flags = IORESOURCE_MEM,
354 .start = RT305X_INTC_IRQ_OTG,
355 .end = RT305X_INTC_IRQ_OTG,
356 .flags = IORESOURCE_IRQ,
360 static u64 rt3352_ehci_dmamask = DMA_BIT_MASK(32);
361 static struct platform_device rt3352_ehci_device = {
362 .name = "rt3883-ehci",
364 .resource = rt3352_ehci_resources,
365 .num_resources = ARRAY_SIZE(rt3352_ehci_resources),
367 .dma_mask = &rt3352_ehci_dmamask,
368 .coherent_dma_mask = DMA_BIT_MASK(32),
369 .platform_data = &rt3352_ehci_data,
373 static struct resource rt3352_ohci_resources[] = {
375 .start = RT3352_OHCI_BASE,
376 .end = RT3352_OHCI_BASE + RT3352_OHCI_SIZE - 1,
377 .flags = IORESOURCE_MEM,
379 .start = RT305X_INTC_IRQ_OTG,
380 .end = RT305X_INTC_IRQ_OTG,
381 .flags = IORESOURCE_IRQ,
385 static struct rt3883_ohci_platform_data rt3352_ohci_data = {
386 .start_hw = rt3352_usb_host_start,
387 .stop_hw = rt3352_usb_host_stop,
390 static u64 rt3352_ohci_dmamask = DMA_BIT_MASK(32);
391 static struct platform_device rt3352_ohci_device = {
392 .name = "rt3883-ohci",
394 .resource = rt3352_ohci_resources,
395 .num_resources = ARRAY_SIZE(rt3352_ohci_resources),
397 .dma_mask = &rt3352_ohci_dmamask,
398 .coherent_dma_mask = DMA_BIT_MASK(32),
399 .platform_data = &rt3352_ohci_data,
403 void __init rt305x_register_usb(void)
405 if (soc_is_rt305x() || soc_is_rt3350()) {
406 platform_device_register(&rt305x_dwc_otg_device);
407 } else if (soc_is_rt3352()) {
408 platform_device_register(&rt3352_ehci_device);
409 platform_device_register(&rt3352_ohci_device);