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>
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 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
65 .dev = &corgiscoop_device.dev,
66 .irq = CORGI_IRQ_GPIO_CF_IRQ,
67 .cd_irq = CORGI_IRQ_GPIO_CF_CD,
68 .cd_irq_str = "PCMCIA0 CD",
72 struct platform_device corgiscoop_device = {
73 .name = "sharp-scoop",
76 .platform_data = &corgi_scoop_setup,
78 .num_resources = ARRAY_SIZE(corgi_scoop_resources),
79 .resource = corgi_scoop_resources,
86 * Set the parent as the scoop device because a lot of SSP devices
87 * also use scoop functions and this makes the power up/down order
90 struct platform_device corgissp_device = {
93 .parent = &corgiscoop_device.dev,
98 struct corgissp_machinfo corgi_ssp_machinfo = {
100 .cs_lcdcon = CORGI_GPIO_LCDCON_CS,
101 .cs_ads7846 = CORGI_GPIO_ADS7846_CS,
102 .cs_max1111 = CORGI_GPIO_MAX1111_CS,
110 * Corgi Backlight Device
112 static struct platform_device corgibl_device = {
115 .parent = &corgifb_device.dev,
122 * Corgi Keyboard Device
124 static struct platform_device corgikbd_device = {
125 .name = "corgi-keyboard",
131 * Corgi Touch Screen Device
133 static struct platform_device corgits_device = {
136 .parent = &corgissp_device.dev,
145 * The card detect interrupt isn't debounced so we delay it by 250ms
146 * to give the card a chance to fully insert/eject.
148 static struct pxamci_platform_data corgi_mci_platform_data;
150 static int corgi_mci_init(struct device *dev, irqreturn_t (*corgi_detect_int)(int, void *, struct pt_regs *), void *data)
154 /* setup GPIO for PXA25x MMC controller */
155 pxa_gpio_mode(GPIO6_MMCCLK_MD);
156 pxa_gpio_mode(GPIO8_MMCCS0_MD);
157 pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
158 pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
160 corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
162 err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int, SA_INTERRUPT,
163 "MMC card detect", data);
165 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
169 set_irq_type(CORGI_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
174 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
176 struct pxamci_platform_data* p_d = dev->platform_data;
178 if (( 1 << vdd) & p_d->ocr_mask) {
179 printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
180 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
182 printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
183 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
187 static int corgi_mci_get_ro(struct device *dev)
189 return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
192 static void corgi_mci_exit(struct device *dev, void *data)
194 free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
197 static struct pxamci_platform_data corgi_mci_platform_data = {
198 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
199 .init = corgi_mci_init,
200 .get_ro = corgi_mci_get_ro,
201 .setpower = corgi_mci_setpower,
202 .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 = {
237 static void __init corgi_init(void)
239 corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
241 pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT);
242 pxa_set_udc_info(&udc_info);
243 pxa_set_mci_info(&corgi_mci_platform_data);
246 scoop_devs = &corgi_pcmcia_scoop[0];
248 platform_add_devices(devices, ARRAY_SIZE(devices));
251 static void __init fixup_corgi(struct machine_desc *desc,
252 struct tag *tags, char **cmdline, struct meminfo *mi)
254 sharpsl_save_param();
256 mi->bank[0].start = 0xa0000000;
257 mi->bank[0].node = 0;
258 if (machine_is_corgi())
259 mi->bank[0].size = (32*1024*1024);
261 mi->bank[0].size = (64*1024*1024);
264 static void __init corgi_init_irq(void)
269 static struct map_desc corgi_io_desc[] __initdata = {
270 /* virtual physical length */
271 /* { 0xf1000000, 0x08000000, 0x01000000, MT_DEVICE },*/ /* LCDC (readable for Qt driver) */
272 /* { 0xef700000, 0x10800000, 0x00001000, MT_DEVICE },*/ /* SCOOP */
273 { 0xef800000, 0x00000000, 0x00800000, MT_DEVICE }, /* Boot Flash */
276 static void __init corgi_map_io(void)
279 iotable_init(corgi_io_desc,ARRAY_SIZE(corgi_io_desc));
281 /* setup sleep mode values */
288 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
292 #ifdef CONFIG_MACH_CORGI
293 MACHINE_START(CORGI, "SHARP Corgi")
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_SHEPHERD
306 MACHINE_START(SHEPHERD, "SHARP Shepherd")
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,
318 #ifdef CONFIG_MACH_HUSKY
319 MACHINE_START(HUSKY, "SHARP Husky")
320 .phys_ram = 0xa0000000,
321 .phys_io = 0x40000000,
322 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
323 .fixup = fixup_corgi,
324 .map_io = corgi_map_io,
325 .init_irq = corgi_init_irq,
326 .init_machine = corgi_init,