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>
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 scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
64 .dev = &corgiscoop_device.dev,
65 .irq = CORGI_IRQ_GPIO_CF_IRQ,
66 .cd_irq = CORGI_IRQ_GPIO_CF_CD,
67 .cd_irq_str = "PCMCIA0 CD",
71 struct platform_device corgiscoop_device = {
72 .name = "sharp-scoop",
75 .platform_data = &corgi_scoop_setup,
77 .num_resources = ARRAY_SIZE(corgi_scoop_resources),
78 .resource = corgi_scoop_resources,
85 * Set the parent as the scoop device because a lot of SSP devices
86 * also use scoop functions and this makes the power up/down order
89 struct platform_device corgissp_device = {
92 .parent = &corgiscoop_device.dev,
99 * Corgi Backlight Device
101 static struct platform_device corgibl_device = {
104 .parent = &corgifb_device.dev,
111 * Corgi Keyboard Device
113 static struct platform_device corgikbd_device = {
114 .name = "corgi-keyboard",
120 * Corgi Touch Screen Device
122 static struct platform_device corgits_device = {
125 .parent = &corgissp_device.dev,
134 * The card detect interrupt isn't debounced so we delay it by 250ms
135 * to give the card a chance to fully insert/eject.
137 static struct pxamci_platform_data corgi_mci_platform_data;
139 static int corgi_mci_init(struct device *dev, irqreturn_t (*corgi_detect_int)(int, void *, struct pt_regs *), void *data)
143 /* setup GPIO for PXA25x MMC controller */
144 pxa_gpio_mode(GPIO6_MMCCLK_MD);
145 pxa_gpio_mode(GPIO8_MMCCS0_MD);
146 pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
147 pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
149 corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
151 err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int, SA_INTERRUPT,
152 "MMC card detect", data);
154 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
158 set_irq_type(CORGI_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
163 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
165 struct pxamci_platform_data* p_d = dev->platform_data;
167 if (( 1 << vdd) & p_d->ocr_mask) {
168 printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
169 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
171 printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
172 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
176 static int corgi_mci_get_ro(struct device *dev)
178 return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
181 static void corgi_mci_exit(struct device *dev, void *data)
183 free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
186 static struct pxamci_platform_data corgi_mci_platform_data = {
187 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
188 .init = corgi_mci_init,
189 .get_ro = corgi_mci_get_ro,
190 .setpower = corgi_mci_setpower,
191 .exit = corgi_mci_exit,
197 * USB Device Controller
199 static void corgi_udc_command(int cmd)
202 case PXA2XX_UDC_CMD_CONNECT:
203 GPSR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
205 case PXA2XX_UDC_CMD_DISCONNECT:
206 GPCR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
211 static struct pxa2xx_udc_mach_info udc_info __initdata = {
212 /* no connect GPIO; corgi can't tell connection status */
213 .udc_command = corgi_udc_command,
217 static struct platform_device *devices[] __initdata = {
226 static void __init corgi_init(void)
228 pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT);
229 pxa_set_udc_info(&udc_info);
230 pxa_set_mci_info(&corgi_mci_platform_data);
233 scoop_devs = &corgi_pcmcia_scoop[0];
235 platform_add_devices(devices, ARRAY_SIZE(devices));
238 static void __init fixup_corgi(struct machine_desc *desc,
239 struct tag *tags, char **cmdline, struct meminfo *mi)
241 sharpsl_save_param();
243 mi->bank[0].start = 0xa0000000;
244 mi->bank[0].node = 0;
245 if (machine_is_corgi())
246 mi->bank[0].size = (32*1024*1024);
248 mi->bank[0].size = (64*1024*1024);
251 static void __init corgi_init_irq(void)
256 static struct map_desc corgi_io_desc[] __initdata = {
257 /* virtual physical length */
258 /* { 0xf1000000, 0x08000000, 0x01000000, MT_DEVICE },*/ /* LCDC (readable for Qt driver) */
259 /* { 0xef700000, 0x10800000, 0x00001000, MT_DEVICE },*/ /* SCOOP */
260 { 0xef800000, 0x00000000, 0x00800000, MT_DEVICE }, /* Boot Flash */
263 static void __init corgi_map_io(void)
266 iotable_init(corgi_io_desc,ARRAY_SIZE(corgi_io_desc));
268 /* setup sleep mode values */
275 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
279 #ifdef CONFIG_MACH_CORGI
280 MACHINE_START(CORGI, "SHARP Corgi")
281 .phys_ram = 0xa0000000,
282 .phys_io = 0x40000000,
283 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
284 .fixup = fixup_corgi,
285 .map_io = corgi_map_io,
286 .init_irq = corgi_init_irq,
287 .init_machine = corgi_init,
292 #ifdef CONFIG_MACH_SHEPHERD
293 MACHINE_START(SHEPHERD, "SHARP Shepherd")
294 .phys_ram = 0xa0000000,
295 .phys_io = 0x40000000,
296 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
297 .fixup = fixup_corgi,
298 .map_io = corgi_map_io,
299 .init_irq = corgi_init_irq,
300 .init_machine = corgi_init,
305 #ifdef CONFIG_MACH_HUSKY
306 MACHINE_START(HUSKY, "SHARP Husky")
307 .phys_ram = 0xa0000000,
308 .phys_io = 0x40000000,
309 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
310 .fixup = fixup_corgi,
311 .map_io = corgi_map_io,
312 .init_irq = corgi_init_irq,
313 .init_machine = corgi_init,