2 * Support for Sharp SL-C7xx PDAs
3 * Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
5 * Copyright (c) 2004-2005 Richard Purdie
7 * Based on Sharp's 2.4 kernel patches/lubbock.c
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/device.h>
18 #include <linux/major.h>
20 #include <linux/interrupt.h>
21 #include <linux/mmc/host.h>
23 #include <asm/setup.h>
24 #include <asm/memory.h>
25 #include <asm/mach-types.h>
26 #include <asm/hardware.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/irq.h>
34 #include <asm/arch/pxa-regs.h>
35 #include <asm/arch/irq.h>
36 #include <asm/arch/mmc.h>
37 #include <asm/arch/udc.h>
38 #include <asm/arch/corgi.h>
40 #include <asm/hardware/scoop.h>
41 #include <video/w100fb.h>
49 static struct resource corgi_scoop_resources[] = {
53 .flags = IORESOURCE_MEM,
57 static struct scoop_config corgi_scoop_setup = {
58 .io_dir = CORGI_SCOOP_IO_DIR,
59 .io_out = CORGI_SCOOP_IO_OUT,
62 static struct platform_device corgiscoop_device = {
63 .name = "sharp-scoop",
66 .platform_data = &corgi_scoop_setup,
68 .num_resources = ARRAY_SIZE(corgi_scoop_resources),
69 .resource = corgi_scoop_resources,
76 * Set the parent as the scoop device because a lot of SSP devices
77 * also use scoop functions and this makes the power up/down order
80 static struct platform_device corgissp_device = {
83 .parent = &corgiscoop_device.dev,
90 * Corgi w100 Frame Buffer Device
92 static struct w100fb_mach_info corgi_fb_info = {
93 .w100fb_ssp_send = corgi_ssp_lcdtg_send,
98 static struct resource corgi_fb_resources[] = {
102 .flags = IORESOURCE_MEM,
106 static struct platform_device corgifb_device = {
110 .platform_data = &corgi_fb_info,
111 .parent = &corgissp_device.dev,
113 .num_resources = ARRAY_SIZE(corgi_fb_resources),
114 .resource = corgi_fb_resources,
119 * Corgi Backlight Device
121 static struct platform_device corgibl_device = {
124 .parent = &corgifb_device.dev,
133 * The card detect interrupt isn't debounced so we delay it by HZ/4
134 * to give the card a chance to fully insert/eject.
136 static struct mmc_detect {
137 struct timer_list detect_timer;
141 static void mmc_detect_callback(unsigned long data)
143 mmc_detect_change(mmc_detect.devid);
146 static irqreturn_t corgi_mmc_detect_int(int irq, void *devid, struct pt_regs *regs)
148 mmc_detect.devid=devid;
149 mod_timer(&mmc_detect.detect_timer, jiffies + HZ/4);
153 static int corgi_mci_init(struct device *dev, irqreturn_t (*unused_detect_int)(int, void *, struct pt_regs *), void *data)
157 /* setup GPIO for PXA25x MMC controller */
158 pxa_gpio_mode(GPIO6_MMCCLK_MD);
159 pxa_gpio_mode(GPIO8_MMCCS0_MD);
160 pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
161 pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
163 init_timer(&mmc_detect.detect_timer);
164 mmc_detect.detect_timer.function = mmc_detect_callback;
165 mmc_detect.detect_timer.data = (unsigned long) &mmc_detect;
167 err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_mmc_detect_int, SA_INTERRUPT,
168 "MMC card detect", data);
170 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
174 set_irq_type(CORGI_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
179 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
181 struct pxamci_platform_data* p_d = dev->platform_data;
183 if (( 1 << vdd) & p_d->ocr_mask) {
184 printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
185 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
187 printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
188 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
192 static void corgi_mci_exit(struct device *dev, void *data)
194 free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
195 del_timer(&mmc_detect.detect_timer);
198 static struct pxamci_platform_data corgi_mci_platform_data = {
199 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
200 .init = corgi_mci_init,
201 .setpower = corgi_mci_setpower,
202 .exit = corgi_mci_exit,
207 * USB Device Controller
209 static void corgi_udc_command(int cmd)
212 case PXA2XX_UDC_CMD_CONNECT:
213 GPSR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
215 case PXA2XX_UDC_CMD_DISCONNECT:
216 GPCR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
221 static struct pxa2xx_udc_mach_info udc_info __initdata = {
222 /* no connect GPIO; corgi can't tell connection status */
223 .udc_command = corgi_udc_command,
227 static struct platform_device *devices[] __initdata = {
234 static struct sharpsl_flash_param_info sharpsl_flash_param;
236 static void corgi_get_param(void)
238 sharpsl_flash_param.comadj_keyword = readl(FLASH_MEM_BASE + FLASH_COMADJ_MAGIC_ADR);
239 sharpsl_flash_param.comadj = readl(FLASH_MEM_BASE + FLASH_COMADJ_DATA_ADR);
241 sharpsl_flash_param.phad_keyword = readl(FLASH_MEM_BASE + FLASH_PHAD_MAGIC_ADR);
242 sharpsl_flash_param.phadadj = readl(FLASH_MEM_BASE + FLASH_PHAD_DATA_ADR);
245 static void __init corgi_init(void)
247 if (sharpsl_flash_param.comadj_keyword == FLASH_COMADJ_MAJIC)
248 corgi_fb_info.comadj=sharpsl_flash_param.comadj;
250 corgi_fb_info.comadj=-1;
252 if (sharpsl_flash_param.phad_keyword == FLASH_PHAD_MAJIC)
253 corgi_fb_info.phadadj=sharpsl_flash_param.phadadj;
255 corgi_fb_info.phadadj=-1;
257 pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT);
258 pxa_set_udc_info(&udc_info);
259 pxa_set_mci_info(&corgi_mci_platform_data);
261 platform_add_devices(devices, ARRAY_SIZE(devices));
264 static void __init fixup_corgi(struct machine_desc *desc,
265 struct tag *tags, char **cmdline, struct meminfo *mi)
269 mi->bank[0].start = 0xa0000000;
270 mi->bank[0].node = 0;
271 if (machine_is_corgi())
272 mi->bank[0].size = (32*1024*1024);
274 mi->bank[0].size = (64*1024*1024);
277 static void __init corgi_init_irq(void)
282 static struct map_desc corgi_io_desc[] __initdata = {
283 /* virtual physical length */
284 /* { 0xf1000000, 0x08000000, 0x01000000, MT_DEVICE },*/ /* LCDC (readable for Qt driver) */
285 /* { 0xef700000, 0x10800000, 0x00001000, MT_DEVICE },*/ /* SCOOP */
286 { 0xef800000, 0x00000000, 0x00800000, MT_DEVICE }, /* Boot Flash */
289 static void __init corgi_map_io(void)
292 iotable_init(corgi_io_desc,ARRAY_SIZE(corgi_io_desc));
294 /* setup sleep mode values */
301 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
305 #ifdef CONFIG_MACH_CORGI
306 MACHINE_START(CORGI, "SHARP Corgi")
307 BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
310 INITIRQ(corgi_init_irq)
311 .init_machine = corgi_init,
316 #ifdef CONFIG_MACH_SHEPHERD
317 MACHINE_START(SHEPHERD, "SHARP Shepherd")
318 BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
321 INITIRQ(corgi_init_irq)
322 .init_machine = corgi_init,
327 #ifdef CONFIG_MACH_HUSKY
328 MACHINE_START(HUSKY, "SHARP Husky")
329 BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
332 INITIRQ(corgi_init_irq)
333 .init_machine = corgi_init,