blob: 276431bf1ce71ecaf2a41616688b829164807f1c [file] [log] [blame]
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>
42#include <video/w100fb.h>
43
44#include "generic.h"
45
46
47/*
48 * Corgi SCOOP Device
49 */
50static struct resource corgi_scoop_resources[] = {
51 [0] = {
52 .start = 0x10800000,
53 .end = 0x10800fff,
54 .flags = IORESOURCE_MEM,
55 },
56};
57
58static struct scoop_config corgi_scoop_setup = {
59 .io_dir = CORGI_SCOOP_IO_DIR,
60 .io_out = CORGI_SCOOP_IO_OUT,
61};
62
63struct platform_device corgiscoop_device = {
64 .name = "sharp-scoop",
65 .id = -1,
66 .dev = {
67 .platform_data = &corgi_scoop_setup,
68 },
69 .num_resources = ARRAY_SIZE(corgi_scoop_resources),
70 .resource = corgi_scoop_resources,
71};
72
73
74/*
75 * Corgi SSP Device
76 *
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
79 * work correctly.
80 */
81static struct platform_device corgissp_device = {
82 .name = "corgi-ssp",
83 .dev = {
84 .parent = &corgiscoop_device.dev,
85 },
86 .id = -1,
87};
88
89
90/*
91 * Corgi w100 Frame Buffer Device
92 */
93static struct w100fb_mach_info corgi_fb_info = {
94 .w100fb_ssp_send = corgi_ssp_lcdtg_send,
95 .comadj = -1,
96 .phadadj = -1,
97};
98
99static struct resource corgi_fb_resources[] = {
100 [0] = {
101 .start = 0x08000000,
102 .end = 0x08ffffff,
103 .flags = IORESOURCE_MEM,
104 },
105};
106
107static struct platform_device corgifb_device = {
108 .name = "w100fb",
109 .id = -1,
110 .dev = {
111 .platform_data = &corgi_fb_info,
112 .parent = &corgissp_device.dev,
113 },
114 .num_resources = ARRAY_SIZE(corgi_fb_resources),
115 .resource = corgi_fb_resources,
116};
117
118
119/*
120 * Corgi Backlight Device
121 */
122static struct platform_device corgibl_device = {
123 .name = "corgi-bl",
124 .dev = {
125 .parent = &corgifb_device.dev,
126 },
127 .id = -1,
128};
129
130
131/*
132 * 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
207/*
208 * USB Device Controller
209 */
210static void corgi_udc_command(int cmd)
211{
212 switch(cmd) {
213 case PXA2XX_UDC_CMD_CONNECT:
214 GPSR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
215 break;
216 case PXA2XX_UDC_CMD_DISCONNECT:
217 GPCR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
218 break;
219 }
220}
221
222static struct pxa2xx_udc_mach_info udc_info __initdata = {
223 /* no connect GPIO; corgi can't tell connection status */
224 .udc_command = corgi_udc_command,
225};
226
227
228static struct platform_device *devices[] __initdata = {
229 &corgiscoop_device,
230 &corgissp_device,
231 &corgifb_device,
232 &corgibl_device,
233};
234
235static void __init corgi_init(void)
236{
237 corgi_fb_info.comadj=sharpsl_param.comadj;
238 corgi_fb_info.phadadj=sharpsl_param.phadadj;
239
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);
243
244 platform_add_devices(devices, ARRAY_SIZE(devices));
245}
246
247static void __init fixup_corgi(struct machine_desc *desc,
248 struct tag *tags, char **cmdline, struct meminfo *mi)
249{
250 sharpsl_save_param();
251 mi->nr_banks=1;
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);
256 else
257 mi->bank[0].size = (64*1024*1024);
258}
259
260static void __init corgi_init_irq(void)
261{
262 pxa_init_irq();
263}
264
265static 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 */
270};
271
272static void __init corgi_map_io(void)
273{
274 pxa_map_io();
275 iotable_init(corgi_io_desc,ARRAY_SIZE(corgi_io_desc));
276
277 /* setup sleep mode values */
278 PWER = 0x00000002;
279 PFER = 0x00000000;
280 PRER = 0x00000002;
281 PGSR0 = 0x0158C000;
282 PGSR1 = 0x00FF0080;
283 PGSR2 = 0x0001C004;
284 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
285 PCFR |= PCFR_OPDE;
286}
287
288#ifdef CONFIG_MACH_CORGI
289MACHINE_START(CORGI, "SHARP Corgi")
Russell Kinge9dea0c2005-07-03 17:38:58 +0100290 .phys_ram = 0xa0000000,
291 .phys_io = 0x40000000,
292 .io_pg_offst = ((io_p2v(0x40000000) >> 18) & 0xfffc,)
293 .fixup = fixup_corgi,
294 .map_io = corgi_map_io,
295 .init_irq = corgi_init_irq,
296 .init_machine = corgi_init,
297 .timer = &pxa_timer,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298MACHINE_END
299#endif
300
301#ifdef CONFIG_MACH_SHEPHERD
302MACHINE_START(SHEPHERD, "SHARP Shepherd")
Russell Kinge9dea0c2005-07-03 17:38:58 +0100303 .phys_ram = 0xa0000000,
304 .phys_io = 0x40000000,
305 .io_pg_offst = ((io_p2v(0x40000000) >> 18) & 0xfffc,)
306 .fixup = fixup_corgi,
307 .map_io = corgi_map_io,
308 .init_irq = corgi_init_irq,
309 .init_machine = corgi_init,
310 .timer = &pxa_timer,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311MACHINE_END
312#endif
313
314#ifdef CONFIG_MACH_HUSKY
315MACHINE_START(HUSKY, "SHARP Husky")
Russell Kinge9dea0c2005-07-03 17:38:58 +0100316 .phys_ram = 0xa0000000,
317 .phys_io = 0x40000000,
318 .io_pg_offst = ((io_p2v(0x40000000) >> 18) & 0xfffc,)
319 .fixup = fixup_corgi,
320 .map_io = corgi_map_io,
321 .init_irq = corgi_init_irq,
322 .init_machine = corgi_init,
323 .timer = &pxa_timer,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324MACHINE_END
325#endif
326