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 .vlan_config
= RT305X_ESW_VLAN_CONFIG_NONE
,
160 .reg_initval_fct2
= 0x00d6500c,
161 .reg_initval_fpa2
= 0x3f502b28,
164 static struct platform_device rt305x_esw_device
= {
165 .name
= "rt305x-esw",
166 .resource
= rt305x_esw_resources
,
167 .num_resources
= ARRAY_SIZE(rt305x_esw_resources
),
169 .platform_data
= &rt305x_esw_data
,
173 void __init
rt305x_register_ethernet(void)
177 clk
= clk_get(NULL
, "sys");
179 panic("unable to get SYS clock, err=%ld", PTR_ERR(clk
));
181 ramips_eth_data
.sys_freq
= clk_get_rate(clk
);
183 platform_device_register(&rt305x_esw_device
);
184 platform_device_register(&rt305x_eth_device
);
187 static struct resource rt305x_wifi_resources
[] = {
189 .start
= RT305X_WMAC_BASE
,
190 .end
= RT305X_WMAC_BASE
+ 0x3FFFF,
191 .flags
= IORESOURCE_MEM
,
193 .start
= RT305X_CPU_IRQ_WNIC
,
194 .end
= RT305X_CPU_IRQ_WNIC
,
195 .flags
= IORESOURCE_IRQ
,
199 static struct rt2x00_platform_data rt305x_wifi_data
;
200 static struct platform_device rt305x_wifi_device
= {
201 .name
= "rt2800_wmac",
202 .resource
= rt305x_wifi_resources
,
203 .num_resources
= ARRAY_SIZE(rt305x_wifi_resources
),
205 .platform_data
= &rt305x_wifi_data
,
209 void __init
rt305x_register_wifi(void)
211 rt305x_wifi_data
.eeprom_file_name
= "RT305X.eeprom";
212 platform_device_register(&rt305x_wifi_device
);
215 static struct resource rt305x_wdt_resources
[] = {
217 .start
= RT305X_TIMER_BASE
,
218 .end
= RT305X_TIMER_BASE
+ RT305X_TIMER_SIZE
- 1,
219 .flags
= IORESOURCE_MEM
,
223 static struct platform_device rt305x_wdt_device
= {
224 .name
= "ramips-wdt",
226 .resource
= rt305x_wdt_resources
,
227 .num_resources
= ARRAY_SIZE(rt305x_wdt_resources
),
230 void __init
rt305x_register_wdt(void)
234 /* enable WDT reset output on pin SRAM_CS_N */
235 t
= rt305x_sysc_rr(SYSC_REG_SYSTEM_CONFIG
);
236 t
|= RT305X_SYSCFG_SRAM_CS0_MODE_WDT
<<
237 RT305X_SYSCFG_SRAM_CS0_MODE_SHIFT
;
238 rt305x_sysc_wr(t
, SYSC_REG_SYSTEM_CONFIG
);
240 platform_device_register(&rt305x_wdt_device
);
243 static struct resource rt305x_spi_resources
[] = {
245 .flags
= IORESOURCE_MEM
,
246 .start
= RT305X_SPI_BASE
,
247 .end
= RT305X_SPI_BASE
+ RT305X_SPI_SIZE
- 1,
251 static struct platform_device rt305x_spi_device
= {
252 .name
= "ramips-spi",
254 .resource
= rt305x_spi_resources
,
255 .num_resources
= ARRAY_SIZE(rt305x_spi_resources
),
258 void __init
rt305x_register_spi(struct spi_board_info
*info
, int n
)
260 spi_register_board_info(info
, n
);
261 platform_device_register(&rt305x_spi_device
);
264 static struct resource rt305x_dwc_otg_resources
[] = {
266 .start
= RT305X_OTG_BASE
,
267 .end
= RT305X_OTG_BASE
+ 0x3FFFF,
268 .flags
= IORESOURCE_MEM
,
270 .start
= RT305X_INTC_IRQ_OTG
,
271 .end
= RT305X_INTC_IRQ_OTG
,
272 .flags
= IORESOURCE_IRQ
,
276 static struct platform_device rt305x_dwc_otg_device
= {
278 .resource
= rt305x_dwc_otg_resources
,
279 .num_resources
= ARRAY_SIZE(rt305x_dwc_otg_resources
),
281 .platform_data
= NULL
,
285 static atomic_t rt3352_usb_use_count
= ATOMIC_INIT(0);
287 static void rt3352_usb_host_start(void)
291 if (atomic_inc_return(&rt3352_usb_use_count
) != 1)
294 t
= rt305x_sysc_rr(RT3352_SYSC_REG_USB_PS
);
296 /* enable clock for port0's and port1's phys */
297 t
= rt305x_sysc_rr(RT3352_SYSC_REG_CLKCFG1
);
298 t
= t
| RT3352_CLKCFG1_UPHY0_CLK_EN
| RT3352_CLKCFG1_UPHY1_CLK_EN
;
299 rt305x_sysc_wr(t
, RT3352_SYSC_REG_CLKCFG1
);
302 /* pull USBHOST and USBDEV out from reset */
303 t
= rt305x_sysc_rr(RT3352_SYSC_REG_RSTCTRL
);
304 t
&= ~(RT3352_RSTCTRL_UHST
| RT3352_RSTCTRL_UDEV
);
305 rt305x_sysc_wr(t
, RT3352_SYSC_REG_RSTCTRL
);
308 /* enable host mode */
309 t
= rt305x_sysc_rr(RT3352_SYSC_REG_SYSCFG1
);
310 t
|= RT3352_SYSCFG1_USB0_HOST_MODE
;
311 rt305x_sysc_wr(t
, RT3352_SYSC_REG_SYSCFG1
);
313 t
= rt305x_sysc_rr(RT3352_SYSC_REG_USB_PS
);
316 static void rt3352_usb_host_stop(void)
320 if (atomic_dec_return(&rt3352_usb_use_count
) != 0)
323 /* put USBHOST and USBDEV into reset */
324 t
= rt305x_sysc_rr(RT3352_SYSC_REG_RSTCTRL
);
325 t
|= RT3352_RSTCTRL_UHST
| RT3352_RSTCTRL_UDEV
;
326 rt305x_sysc_wr(t
, RT3352_SYSC_REG_RSTCTRL
);
329 /* disable clock for port0's and port1's phys*/
330 t
= rt305x_sysc_rr(RT3352_SYSC_REG_CLKCFG1
);
331 t
&= ~(RT3352_CLKCFG1_UPHY0_CLK_EN
| RT3352_CLKCFG1_UPHY1_CLK_EN
);
332 rt305x_sysc_wr(t
, RT3352_SYSC_REG_CLKCFG1
);
336 static struct rt3883_ehci_platform_data rt3352_ehci_data
= {
337 .start_hw
= rt3352_usb_host_start
,
338 .stop_hw
= rt3352_usb_host_stop
,
341 static struct resource rt3352_ehci_resources
[] = {
343 .start
= RT3352_EHCI_BASE
,
344 .end
= RT3352_EHCI_BASE
+ RT3352_EHCI_SIZE
- 1,
345 .flags
= IORESOURCE_MEM
,
347 .start
= RT305X_INTC_IRQ_OTG
,
348 .end
= RT305X_INTC_IRQ_OTG
,
349 .flags
= IORESOURCE_IRQ
,
353 static u64 rt3352_ehci_dmamask
= DMA_BIT_MASK(32);
354 static struct platform_device rt3352_ehci_device
= {
355 .name
= "rt3883-ehci",
357 .resource
= rt3352_ehci_resources
,
358 .num_resources
= ARRAY_SIZE(rt3352_ehci_resources
),
360 .dma_mask
= &rt3352_ehci_dmamask
,
361 .coherent_dma_mask
= DMA_BIT_MASK(32),
362 .platform_data
= &rt3352_ehci_data
,
366 static struct resource rt3352_ohci_resources
[] = {
368 .start
= RT3352_OHCI_BASE
,
369 .end
= RT3352_OHCI_BASE
+ RT3352_OHCI_SIZE
- 1,
370 .flags
= IORESOURCE_MEM
,
372 .start
= RT305X_INTC_IRQ_OTG
,
373 .end
= RT305X_INTC_IRQ_OTG
,
374 .flags
= IORESOURCE_IRQ
,
378 static struct rt3883_ohci_platform_data rt3352_ohci_data
= {
379 .start_hw
= rt3352_usb_host_start
,
380 .stop_hw
= rt3352_usb_host_stop
,
383 static u64 rt3352_ohci_dmamask
= DMA_BIT_MASK(32);
384 static struct platform_device rt3352_ohci_device
= {
385 .name
= "rt3883-ohci",
387 .resource
= rt3352_ohci_resources
,
388 .num_resources
= ARRAY_SIZE(rt3352_ohci_resources
),
390 .dma_mask
= &rt3352_ohci_dmamask
,
391 .coherent_dma_mask
= DMA_BIT_MASK(32),
392 .platform_data
= &rt3352_ohci_data
,
396 void __init
rt305x_register_usb(void)
398 if (soc_is_rt305x() || soc_is_rt3350()) {
399 platform_device_register(&rt305x_dwc_otg_device
);
400 } else if (soc_is_rt3352()) {
401 platform_device_register(&rt3352_ehci_device
);
402 platform_device_register(&rt3352_ohci_device
);