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>
21 #include <linux/usb/ehci_pdriver.h>
22 #include <linux/usb/ohci_pdriver.h>
24 #include <asm/addrspace.h>
26 #include <asm/mach-ralink/rt305x.h>
27 #include <asm/mach-ralink/rt305x_regs.h>
30 #include <ramips_eth_platform.h>
31 #include <rt305x_esw_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 u32 reset_bits = RT305X_RESET_FE;
122 reset_bits |= RT305X_RESET_ESW;
123 rt305x_sysc_wr(reset_bits, SYSC_REG_RESET_CTRL);
124 rt305x_sysc_wr(0, SYSC_REG_RESET_CTRL);
127 static struct resource rt305x_eth_resources[] = {
129 .start = RT305X_FE_BASE,
130 .end = RT305X_FE_BASE + PAGE_SIZE - 1,
131 .flags = IORESOURCE_MEM,
133 .start = RT305X_CPU_IRQ_FE,
134 .end = RT305X_CPU_IRQ_FE,
135 .flags = IORESOURCE_IRQ,
139 static struct ramips_eth_platform_data ramips_eth_data = {
140 .mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
141 .reset_fe = rt305x_fe_reset,
145 static struct platform_device rt305x_eth_device = {
146 .name = "ramips_eth",
147 .resource = rt305x_eth_resources,
148 .num_resources = ARRAY_SIZE(rt305x_eth_resources),
150 .platform_data = &ramips_eth_data,
154 static struct resource rt305x_esw_resources[] = {
156 .start = RT305X_SWITCH_BASE,
157 .end = RT305X_SWITCH_BASE + PAGE_SIZE - 1,
158 .flags = IORESOURCE_MEM,
162 struct rt305x_esw_platform_data rt305x_esw_data = {
163 /* All ports are LAN ports. */
164 .vlan_config = RT305X_ESW_VLAN_CONFIG_NONE,
165 .reg_initval_fct2 = 0x00d6500c,
167 * ext phy base addr 31, enable port 5 polling, rx/tx clock skew 1,
168 * turbo mii off, rgmi 3.3v off
170 * port6: enabled, gige, full-duplex, rx/tx-flow-control
172 .reg_initval_fpa2 = 0x3f502b28,
175 static struct platform_device rt305x_esw_device = {
176 .name = "rt305x-esw",
177 .resource = rt305x_esw_resources,
178 .num_resources = ARRAY_SIZE(rt305x_esw_resources),
180 .platform_data = &rt305x_esw_data,
184 void __init rt305x_register_ethernet(void)
188 clk = clk_get(NULL, "sys");
190 panic("unable to get SYS clock, err=%ld", PTR_ERR(clk));
192 ramips_eth_data.sys_freq = clk_get_rate(clk);
194 platform_device_register(&rt305x_esw_device);
195 platform_device_register(&rt305x_eth_device);
198 static struct resource rt305x_wifi_resources[] = {
200 .start = RT305X_WMAC_BASE,
201 .end = RT305X_WMAC_BASE + 0x3FFFF,
202 .flags = IORESOURCE_MEM,
204 .start = RT305X_CPU_IRQ_WNIC,
205 .end = RT305X_CPU_IRQ_WNIC,
206 .flags = IORESOURCE_IRQ,
210 static struct rt2x00_platform_data rt305x_wifi_data;
211 static struct platform_device rt305x_wifi_device = {
212 .name = "rt2800_wmac",
213 .resource = rt305x_wifi_resources,
214 .num_resources = ARRAY_SIZE(rt305x_wifi_resources),
216 .platform_data = &rt305x_wifi_data,
220 void __init rt305x_register_wifi(void)
224 rt305x_wifi_data.eeprom_file_name = "soc_wmac.eeprom";
226 if (soc_is_rt3352() || soc_is_rt5350()) {
227 t = rt305x_sysc_rr(SYSC_REG_SYSTEM_CONFIG);
228 t &= RT3352_SYSCFG0_XTAL_SEL;
230 rt305x_wifi_data.clk_is_20mhz = 1;
232 platform_device_register(&rt305x_wifi_device);
235 static struct resource rt305x_wdt_resources[] = {
237 .start = RT305X_TIMER_BASE,
238 .end = RT305X_TIMER_BASE + RT305X_TIMER_SIZE - 1,
239 .flags = IORESOURCE_MEM,
243 static struct platform_device rt305x_wdt_device = {
244 .name = "ramips-wdt",
246 .resource = rt305x_wdt_resources,
247 .num_resources = ARRAY_SIZE(rt305x_wdt_resources),
250 void __init rt305x_register_wdt(void)
254 /* enable WDT reset output on pin SRAM_CS_N */
255 t = rt305x_sysc_rr(SYSC_REG_SYSTEM_CONFIG);
256 t |= RT305X_SYSCFG_SRAM_CS0_MODE_WDT <<
257 RT305X_SYSCFG_SRAM_CS0_MODE_SHIFT;
258 rt305x_sysc_wr(t, SYSC_REG_SYSTEM_CONFIG);
260 platform_device_register(&rt305x_wdt_device);
263 static struct resource rt305x_spi_resources[] = {
265 .flags = IORESOURCE_MEM,
266 .start = RT305X_SPI_BASE,
267 .end = RT305X_SPI_BASE + RT305X_SPI_SIZE - 1,
271 static struct platform_device rt305x_spi_device = {
272 .name = "ramips-spi",
274 .resource = rt305x_spi_resources,
275 .num_resources = ARRAY_SIZE(rt305x_spi_resources),
278 void __init rt305x_register_spi(struct spi_board_info *info, int n)
280 spi_register_board_info(info, n);
281 platform_device_register(&rt305x_spi_device);
284 static struct resource rt305x_dwc_otg_resources[] = {
286 .start = RT305X_OTG_BASE,
287 .end = RT305X_OTG_BASE + 0x3FFFF,
288 .flags = IORESOURCE_MEM,
290 .start = RT305X_INTC_IRQ_OTG,
291 .end = RT305X_INTC_IRQ_OTG,
292 .flags = IORESOURCE_IRQ,
296 static struct platform_device rt305x_dwc_otg_device = {
298 .resource = rt305x_dwc_otg_resources,
299 .num_resources = ARRAY_SIZE(rt305x_dwc_otg_resources),
301 .platform_data = NULL,
305 static atomic_t rt3352_usb_pwr_ref = ATOMIC_INIT(0);
307 static int rt3352_usb_power_on(struct platform_device *pdev)
310 if (atomic_inc_return(&rt3352_usb_pwr_ref) == 1) {
313 t = rt305x_sysc_rr(RT3352_SYSC_REG_USB_PS);
315 /* enable clock for port0's and port1's phys */
316 t = rt305x_sysc_rr(RT3352_SYSC_REG_CLKCFG1);
317 t |= RT3352_CLKCFG1_UPHY0_CLK_EN | RT3352_CLKCFG1_UPHY1_CLK_EN;
318 rt305x_sysc_wr(t, RT3352_SYSC_REG_CLKCFG1);
321 /* pull USBHOST and USBDEV out from reset */
322 t = rt305x_sysc_rr(RT3352_SYSC_REG_RSTCTRL);
323 t &= ~(RT3352_RSTCTRL_UHST | RT3352_RSTCTRL_UDEV);
324 rt305x_sysc_wr(t, RT3352_SYSC_REG_RSTCTRL);
327 /* enable host mode */
328 t = rt305x_sysc_rr(RT3352_SYSC_REG_SYSCFG1);
329 t |= RT3352_SYSCFG1_USB0_HOST_MODE;
330 rt305x_sysc_wr(t, RT3352_SYSC_REG_SYSCFG1);
332 t = rt305x_sysc_rr(RT3352_SYSC_REG_USB_PS);
338 static void rt3352_usb_power_off(struct platform_device *pdev)
341 if (atomic_dec_return(&rt3352_usb_pwr_ref) == 0) {
344 /* put USBHOST and USBDEV into reset */
345 t = rt305x_sysc_rr(RT3352_SYSC_REG_RSTCTRL);
346 t |= RT3352_RSTCTRL_UHST | RT3352_RSTCTRL_UDEV;
347 rt305x_sysc_wr(t, RT3352_SYSC_REG_RSTCTRL);
350 /* disable clock for port0's and port1's phys*/
351 t = rt305x_sysc_rr(RT3352_SYSC_REG_CLKCFG1);
352 t &= ~(RT3352_CLKCFG1_UPHY0_CLK_EN | RT3352_CLKCFG1_UPHY1_CLK_EN);
353 rt305x_sysc_wr(t, RT3352_SYSC_REG_CLKCFG1);
358 static struct usb_ehci_pdata rt3352_ehci_data = {
359 .power_on = rt3352_usb_power_on,
360 .power_off = rt3352_usb_power_off,
363 static struct resource rt3352_ehci_resources[] = {
365 .start = RT3352_EHCI_BASE,
366 .end = RT3352_EHCI_BASE + RT3352_EHCI_SIZE - 1,
367 .flags = IORESOURCE_MEM,
369 .start = RT305X_INTC_IRQ_OTG,
370 .end = RT305X_INTC_IRQ_OTG,
371 .flags = IORESOURCE_IRQ,
375 static u64 rt3352_ehci_dmamask = DMA_BIT_MASK(32);
376 static struct platform_device rt3352_ehci_device = {
377 .name = "ehci-platform",
379 .resource = rt3352_ehci_resources,
380 .num_resources = ARRAY_SIZE(rt3352_ehci_resources),
382 .dma_mask = &rt3352_ehci_dmamask,
383 .coherent_dma_mask = DMA_BIT_MASK(32),
384 .platform_data = &rt3352_ehci_data,
388 static struct resource rt3352_ohci_resources[] = {
390 .start = RT3352_OHCI_BASE,
391 .end = RT3352_OHCI_BASE + RT3352_OHCI_SIZE - 1,
392 .flags = IORESOURCE_MEM,
394 .start = RT305X_INTC_IRQ_OTG,
395 .end = RT305X_INTC_IRQ_OTG,
396 .flags = IORESOURCE_IRQ,
400 static struct usb_ohci_pdata rt3352_ohci_data = {
401 .power_on = rt3352_usb_power_on,
402 .power_off = rt3352_usb_power_off,
405 static u64 rt3352_ohci_dmamask = DMA_BIT_MASK(32);
406 static struct platform_device rt3352_ohci_device = {
407 .name = "ohci-platform",
409 .resource = rt3352_ohci_resources,
410 .num_resources = ARRAY_SIZE(rt3352_ohci_resources),
412 .dma_mask = &rt3352_ohci_dmamask,
413 .coherent_dma_mask = DMA_BIT_MASK(32),
414 .platform_data = &rt3352_ohci_data,
418 void __init rt305x_register_usb(void)
420 if (soc_is_rt305x() || soc_is_rt3350()) {
421 platform_device_register(&rt305x_dwc_otg_device);
422 } else if (soc_is_rt3352() || soc_is_rt5350()) {
423 platform_device_register(&rt3352_ehci_device);
424 platform_device_register(&rt3352_ohci_device);