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/mach/sharpsl_param.h>
41 #include <asm/hardware/scoop.h>
42 #include <video/w100fb.h>
50 static struct resource corgi_scoop_resources[] = {
54 .flags = IORESOURCE_MEM,
58 static struct scoop_config corgi_scoop_setup = {
59 .io_dir = CORGI_SCOOP_IO_DIR,
60 .io_out = CORGI_SCOOP_IO_OUT,
63 struct platform_device corgiscoop_device = {
64 .name = "sharp-scoop",
67 .platform_data = &corgi_scoop_setup,
69 .num_resources = ARRAY_SIZE(corgi_scoop_resources),
70 .resource = corgi_scoop_resources,
77 * Set the parent as the scoop device because a lot of SSP devices
78 * also use scoop functions and this makes the power up/down order
81 static struct platform_device corgissp_device = {
84 .parent = &corgiscoop_device.dev,
91 * Corgi w100 Frame Buffer Device
93 static struct w100fb_mach_info corgi_fb_info = {
94 .w100fb_ssp_send = corgi_ssp_lcdtg_send,
99 static struct resource corgi_fb_resources[] = {
103 .flags = IORESOURCE_MEM,
107 static struct platform_device corgifb_device = {
111 .platform_data = &corgi_fb_info,
112 .parent = &corgissp_device.dev,
114 .num_resources = ARRAY_SIZE(corgi_fb_resources),
115 .resource = corgi_fb_resources,
120 * Corgi Backlight Device
122 static struct platform_device corgibl_device = {
125 .parent = &corgifb_device.dev,
134 * The card detect interrupt isn't debounced so we delay it by HZ/4
135 * to give the card a chance to fully insert/eject.
137 static struct mmc_detect {
138 struct timer_list detect_timer;
142 static void mmc_detect_callback(unsigned long data)
144 mmc_detect_change(mmc_detect.devid);
147 static irqreturn_t corgi_mmc_detect_int(int irq, void *devid, struct pt_regs *regs)
149 mmc_detect.devid=devid;
150 mod_timer(&mmc_detect.detect_timer, jiffies + HZ/4);
154 static int corgi_mci_init(struct device *dev, irqreturn_t (*unused_detect_int)(int, void *, struct pt_regs *), void *data)
158 /* setup GPIO for PXA25x MMC controller */
159 pxa_gpio_mode(GPIO6_MMCCLK_MD);
160 pxa_gpio_mode(GPIO8_MMCCS0_MD);
161 pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
162 pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
164 init_timer(&mmc_detect.detect_timer);
165 mmc_detect.detect_timer.function = mmc_detect_callback;
166 mmc_detect.detect_timer.data = (unsigned long) &mmc_detect;
168 err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_mmc_detect_int, SA_INTERRUPT,
169 "MMC card detect", data);
171 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
175 set_irq_type(CORGI_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
180 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
182 struct pxamci_platform_data* p_d = dev->platform_data;
184 if (( 1 << vdd) & p_d->ocr_mask) {
185 printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
186 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
188 printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
189 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
193 static void corgi_mci_exit(struct device *dev, void *data)
195 free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
196 del_timer(&mmc_detect.detect_timer);
199 static struct pxamci_platform_data corgi_mci_platform_data = {
200 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
201 .init = corgi_mci_init,
202 .setpower = corgi_mci_setpower,
203 .exit = corgi_mci_exit,
208 * USB Device Controller
210 static void corgi_udc_command(int cmd)
213 case PXA2XX_UDC_CMD_CONNECT:
214 GPSR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
216 case PXA2XX_UDC_CMD_DISCONNECT:
217 GPCR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
222 static struct pxa2xx_udc_mach_info udc_info __initdata = {
223 /* no connect GPIO; corgi can't tell connection status */
224 .udc_command = corgi_udc_command,
228 static struct platform_device *devices[] __initdata = {
235 static void __init corgi_init(void)
237 corgi_fb_info.comadj=sharpsl_param.comadj;
238 corgi_fb_info.phadadj=sharpsl_param.phadadj;
240 pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT);
241 pxa_set_udc_info(&udc_info);
242 pxa_set_mci_info(&corgi_mci_platform_data);
244 platform_add_devices(devices, ARRAY_SIZE(devices));
247 static void __init fixup_corgi(struct machine_desc *desc,
248 struct tag *tags, char **cmdline, struct meminfo *mi)
250 sharpsl_save_param();
252 mi->bank[0].start = 0xa0000000;
253 mi->bank[0].node = 0;
254 if (machine_is_corgi())
255 mi->bank[0].size = (32*1024*1024);
257 mi->bank[0].size = (64*1024*1024);
260 static void __init corgi_init_irq(void)
265 static struct map_desc corgi_io_desc[] __initdata = {
266 /* virtual physical length */
267 /* { 0xf1000000, 0x08000000, 0x01000000, MT_DEVICE },*/ /* LCDC (readable for Qt driver) */
268 /* { 0xef700000, 0x10800000, 0x00001000, MT_DEVICE },*/ /* SCOOP */
269 { 0xef800000, 0x00000000, 0x00800000, MT_DEVICE }, /* Boot Flash */
272 static void __init corgi_map_io(void)
275 iotable_init(corgi_io_desc,ARRAY_SIZE(corgi_io_desc));
277 /* setup sleep mode values */
284 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
288 #ifdef CONFIG_MACH_CORGI
289 MACHINE_START(CORGI, "SHARP Corgi")
290 BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
293 INITIRQ(corgi_init_irq)
294 .init_machine = corgi_init,
299 #ifdef CONFIG_MACH_SHEPHERD
300 MACHINE_START(SHEPHERD, "SHARP Shepherd")
301 BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
304 INITIRQ(corgi_init_irq)
305 .init_machine = corgi_init,
310 #ifdef CONFIG_MACH_HUSKY
311 MACHINE_START(HUSKY, "SHARP Husky")
312 BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
315 INITIRQ(corgi_init_irq)
316 .init_machine = corgi_init,