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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Support for Sharp SL-C7xx PDAs
3 * Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
4 *
5 * Copyright (c) 2004-2005 Richard Purdie
6 *
7 * Based on Sharp's 2.4 kernel patches/lubbock.c
8 *
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.
12 *
13 */
14
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/device.h>
18#include <linux/major.h>
19#include <linux/fs.h>
20#include <linux/interrupt.h>
21#include <linux/mmc/host.h>
22
23#include <asm/setup.h>
24#include <asm/memory.h>
25#include <asm/mach-types.h>
26#include <asm/hardware.h>
27#include <asm/irq.h>
28#include <asm/io.h>
29
30#include <asm/mach/arch.h>
31#include <asm/mach/map.h>
32#include <asm/mach/irq.h>
33
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>
39
40#include <asm/mach/sharpsl_param.h>
41#include <asm/hardware/scoop.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
43#include "generic.h"
44
45
46/*
47 * Corgi SCOOP Device
48 */
49static struct resource corgi_scoop_resources[] = {
50 [0] = {
51 .start = 0x10800000,
52 .end = 0x10800fff,
53 .flags = IORESOURCE_MEM,
54 },
55};
56
57static struct scoop_config corgi_scoop_setup = {
58 .io_dir = CORGI_SCOOP_IO_DIR,
59 .io_out = CORGI_SCOOP_IO_OUT,
60};
61
Richard Purdie0ce76252005-09-05 20:49:54 +010062static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
63{
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",
68},
69};
70
Linus Torvalds1da177e2005-04-16 15:20:36 -070071struct platform_device corgiscoop_device = {
72 .name = "sharp-scoop",
73 .id = -1,
74 .dev = {
75 .platform_data = &corgi_scoop_setup,
76 },
77 .num_resources = ARRAY_SIZE(corgi_scoop_resources),
78 .resource = corgi_scoop_resources,
79};
80
81
82/*
83 * Corgi SSP Device
84 *
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
87 * work correctly.
88 */
Richard Purdie41b1bce2005-09-06 15:19:05 -070089struct platform_device corgissp_device = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070090 .name = "corgi-ssp",
91 .dev = {
92 .parent = &corgiscoop_device.dev,
93 },
94 .id = -1,
95};
96
97
98/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 * Corgi Backlight Device
100 */
101static struct platform_device corgibl_device = {
102 .name = "corgi-bl",
103 .dev = {
104 .parent = &corgifb_device.dev,
105 },
106 .id = -1,
107};
108
109
110/*
Richard Purdief7ceff32005-09-06 15:19:07 -0700111 * Corgi Keyboard Device
112 */
113static struct platform_device corgikbd_device = {
114 .name = "corgi-keyboard",
115 .id = -1,
116};
117
118
119/*
120 * Corgi Touch Screen Device
121 */
122static struct platform_device corgits_device = {
123 .name = "corgi-ts",
124 .dev = {
125 .parent = &corgissp_device.dev,
126 },
127 .id = -1,
128};
129
130
131/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132 * MMC/SD Device
133 *
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.
136 */
137static struct mmc_detect {
138 struct timer_list detect_timer;
139 void *devid;
140} mmc_detect;
141
142static void mmc_detect_callback(unsigned long data)
143{
144 mmc_detect_change(mmc_detect.devid);
145}
146
147static irqreturn_t corgi_mmc_detect_int(int irq, void *devid, struct pt_regs *regs)
148{
149 mmc_detect.devid=devid;
150 mod_timer(&mmc_detect.detect_timer, jiffies + HZ/4);
151 return IRQ_HANDLED;
152}
153
154static int corgi_mci_init(struct device *dev, irqreturn_t (*unused_detect_int)(int, void *, struct pt_regs *), void *data)
155{
156 int err;
157
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);
163
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;
167
168 err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_mmc_detect_int, SA_INTERRUPT,
169 "MMC card detect", data);
170 if (err) {
171 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
172 return -1;
173 }
174
175 set_irq_type(CORGI_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
176
177 return 0;
178}
179
180static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
181{
182 struct pxamci_platform_data* p_d = dev->platform_data;
183
184 if (( 1 << vdd) & p_d->ocr_mask) {
185 printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
186 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
187 } else {
188 printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
189 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
190 }
191}
192
193static void corgi_mci_exit(struct device *dev, void *data)
194{
195 free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
196 del_timer(&mmc_detect.detect_timer);
197}
198
199static 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,
204};
205
206
Richard Purdief7ceff32005-09-06 15:19:07 -0700207
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208/*
209 * USB Device Controller
210 */
211static void corgi_udc_command(int cmd)
212{
213 switch(cmd) {
214 case PXA2XX_UDC_CMD_CONNECT:
215 GPSR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
216 break;
217 case PXA2XX_UDC_CMD_DISCONNECT:
218 GPCR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
219 break;
220 }
221}
222
223static struct pxa2xx_udc_mach_info udc_info __initdata = {
224 /* no connect GPIO; corgi can't tell connection status */
225 .udc_command = corgi_udc_command,
226};
227
228
229static struct platform_device *devices[] __initdata = {
230 &corgiscoop_device,
231 &corgissp_device,
232 &corgifb_device,
Richard Purdief7ceff32005-09-06 15:19:07 -0700233 &corgikbd_device,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234 &corgibl_device,
Richard Purdief7ceff32005-09-06 15:19:07 -0700235 &corgits_device,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236};
237
238static void __init corgi_init(void)
239{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 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);
243
Richard Purdie0ce76252005-09-05 20:49:54 +0100244 scoop_num = 1;
245 scoop_devs = &corgi_pcmcia_scoop[0];
246
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 platform_add_devices(devices, ARRAY_SIZE(devices));
248}
249
250static void __init fixup_corgi(struct machine_desc *desc,
251 struct tag *tags, char **cmdline, struct meminfo *mi)
252{
253 sharpsl_save_param();
254 mi->nr_banks=1;
255 mi->bank[0].start = 0xa0000000;
256 mi->bank[0].node = 0;
257 if (machine_is_corgi())
258 mi->bank[0].size = (32*1024*1024);
259 else
260 mi->bank[0].size = (64*1024*1024);
261}
262
263static void __init corgi_init_irq(void)
264{
265 pxa_init_irq();
266}
267
268static struct map_desc corgi_io_desc[] __initdata = {
269/* virtual physical length */
270/* { 0xf1000000, 0x08000000, 0x01000000, MT_DEVICE },*/ /* LCDC (readable for Qt driver) */
271/* { 0xef700000, 0x10800000, 0x00001000, MT_DEVICE },*/ /* SCOOP */
272 { 0xef800000, 0x00000000, 0x00800000, MT_DEVICE }, /* Boot Flash */
273};
274
275static void __init corgi_map_io(void)
276{
277 pxa_map_io();
278 iotable_init(corgi_io_desc,ARRAY_SIZE(corgi_io_desc));
279
280 /* setup sleep mode values */
281 PWER = 0x00000002;
282 PFER = 0x00000000;
283 PRER = 0x00000002;
284 PGSR0 = 0x0158C000;
285 PGSR1 = 0x00FF0080;
286 PGSR2 = 0x0001C004;
287 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
288 PCFR |= PCFR_OPDE;
289}
290
291#ifdef CONFIG_MACH_CORGI
292MACHINE_START(CORGI, "SHARP Corgi")
Russell Kinge9dea0c2005-07-03 17:38:58 +0100293 .phys_ram = 0xa0000000,
294 .phys_io = 0x40000000,
Russell King68070bd2005-07-04 10:44:34 +0100295 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
Russell Kinge9dea0c2005-07-03 17:38:58 +0100296 .fixup = fixup_corgi,
297 .map_io = corgi_map_io,
298 .init_irq = corgi_init_irq,
299 .init_machine = corgi_init,
300 .timer = &pxa_timer,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301MACHINE_END
302#endif
303
304#ifdef CONFIG_MACH_SHEPHERD
305MACHINE_START(SHEPHERD, "SHARP Shepherd")
Russell Kinge9dea0c2005-07-03 17:38:58 +0100306 .phys_ram = 0xa0000000,
307 .phys_io = 0x40000000,
Russell King68070bd2005-07-04 10:44:34 +0100308 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
Russell Kinge9dea0c2005-07-03 17:38:58 +0100309 .fixup = fixup_corgi,
310 .map_io = corgi_map_io,
311 .init_irq = corgi_init_irq,
312 .init_machine = corgi_init,
313 .timer = &pxa_timer,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314MACHINE_END
315#endif
316
317#ifdef CONFIG_MACH_HUSKY
318MACHINE_START(HUSKY, "SHARP Husky")
Russell Kinge9dea0c2005-07-03 17:38:58 +0100319 .phys_ram = 0xa0000000,
320 .phys_io = 0x40000000,
Russell King68070bd2005-07-04 10:44:34 +0100321 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
Russell Kinge9dea0c2005-07-03 17:38:58 +0100322 .fixup = fixup_corgi,
323 .map_io = corgi_map_io,
324 .init_irq = corgi_init_irq,
325 .init_machine = corgi_init,
326 .timer = &pxa_timer,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327MACHINE_END
328#endif
329