[ARM] 2882/1: pxa2xx_sharpsl: Update PCMCIA driver to support variety of new hardware
[linux-2.6.git] / arch / arm / mach-pxa / corgi.c
1 /*
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  */
50 static struct resource corgi_scoop_resources[] = {
51         [0] = {
52                 .start          = 0x10800000,
53                 .end            = 0x10800fff,
54                 .flags          = IORESOURCE_MEM,
55         },
56 };
57
58 static struct scoop_config corgi_scoop_setup = {
59         .io_dir         = CORGI_SCOOP_IO_DIR,
60         .io_out         = CORGI_SCOOP_IO_OUT,
61 };
62
63 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
64 {
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",
69 },
70 };
71
72 struct platform_device corgiscoop_device = {
73         .name           = "sharp-scoop",
74         .id             = -1,
75         .dev            = {
76                 .platform_data  = &corgi_scoop_setup,
77         },
78         .num_resources  = ARRAY_SIZE(corgi_scoop_resources),
79         .resource       = corgi_scoop_resources,
80 };
81
82
83 /*
84  * Corgi SSP Device
85  *
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
88  * work correctly.
89  */
90 static struct platform_device corgissp_device = {
91         .name           = "corgi-ssp",
92         .dev            = {
93                 .parent = &corgiscoop_device.dev,
94         },
95         .id             = -1,
96 };
97
98
99 /*
100  * Corgi w100 Frame Buffer Device
101  */
102 static struct w100fb_mach_info corgi_fb_info = {
103         .w100fb_ssp_send        = corgi_ssp_lcdtg_send,
104         .comadj                         = -1,
105         .phadadj                        = -1,
106 };
107
108 static struct resource corgi_fb_resources[] = {
109         [0] = {
110                 .start          = 0x08000000,
111                 .end            = 0x08ffffff,
112                 .flags          = IORESOURCE_MEM,
113         },
114 };
115
116 static struct platform_device corgifb_device = {
117         .name           = "w100fb",
118         .id             = -1,
119         .dev            = {
120                 .platform_data  = &corgi_fb_info,
121                 .parent = &corgissp_device.dev,
122         },
123         .num_resources  = ARRAY_SIZE(corgi_fb_resources),
124         .resource       = corgi_fb_resources,
125 };
126
127
128 /*
129  * Corgi Backlight Device
130  */
131 static struct platform_device corgibl_device = {
132         .name           = "corgi-bl",
133         .dev            = {
134                 .parent = &corgifb_device.dev,
135         },
136         .id             = -1,
137 };
138
139
140 /*
141  * MMC/SD Device
142  *
143  * The card detect interrupt isn't debounced so we delay it by HZ/4
144  * to give the card a chance to fully insert/eject.
145  */
146 static struct mmc_detect {
147         struct timer_list detect_timer;
148         void *devid;
149 } mmc_detect;
150
151 static void mmc_detect_callback(unsigned long data)
152 {
153         mmc_detect_change(mmc_detect.devid);
154 }
155
156 static irqreturn_t corgi_mmc_detect_int(int irq, void *devid, struct pt_regs *regs)
157 {
158         mmc_detect.devid=devid;
159         mod_timer(&mmc_detect.detect_timer, jiffies + HZ/4);
160         return IRQ_HANDLED;
161 }
162
163 static int corgi_mci_init(struct device *dev, irqreturn_t (*unused_detect_int)(int, void *, struct pt_regs *), void *data)
164 {
165         int err;
166
167         /* setup GPIO for PXA25x MMC controller */
168         pxa_gpio_mode(GPIO6_MMCCLK_MD);
169         pxa_gpio_mode(GPIO8_MMCCS0_MD);
170         pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
171         pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
172
173         init_timer(&mmc_detect.detect_timer);
174         mmc_detect.detect_timer.function = mmc_detect_callback;
175         mmc_detect.detect_timer.data = (unsigned long) &mmc_detect;
176
177         err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_mmc_detect_int, SA_INTERRUPT,
178                              "MMC card detect", data);
179         if (err) {
180                 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
181                 return -1;
182         }
183
184         set_irq_type(CORGI_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
185
186         return 0;
187 }
188
189 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
190 {
191         struct pxamci_platform_data* p_d = dev->platform_data;
192
193         if (( 1 << vdd) & p_d->ocr_mask) {
194                 printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
195                 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
196         } else {
197                 printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
198                 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
199         }
200 }
201
202 static void corgi_mci_exit(struct device *dev, void *data)
203 {
204         free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
205         del_timer(&mmc_detect.detect_timer);
206 }
207
208 static struct pxamci_platform_data corgi_mci_platform_data = {
209         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
210         .init           = corgi_mci_init,
211         .setpower       = corgi_mci_setpower,
212         .exit           = corgi_mci_exit,
213 };
214
215
216 /*
217  * USB Device Controller
218  */
219 static void corgi_udc_command(int cmd)
220 {
221         switch(cmd)     {
222         case PXA2XX_UDC_CMD_CONNECT:
223                 GPSR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
224                 break;
225         case PXA2XX_UDC_CMD_DISCONNECT:
226                 GPCR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
227                 break;
228         }
229 }
230
231 static struct pxa2xx_udc_mach_info udc_info __initdata = {
232         /* no connect GPIO; corgi can't tell connection status */
233         .udc_command            = corgi_udc_command,
234 };
235
236
237 static struct platform_device *devices[] __initdata = {
238         &corgiscoop_device,
239         &corgissp_device,
240         &corgifb_device,
241         &corgibl_device,
242 };
243
244 static void __init corgi_init(void)
245 {
246         corgi_fb_info.comadj=sharpsl_param.comadj;
247         corgi_fb_info.phadadj=sharpsl_param.phadadj;
248
249         pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT);
250         pxa_set_udc_info(&udc_info);
251         pxa_set_mci_info(&corgi_mci_platform_data);
252
253         scoop_num = 1;
254         scoop_devs = &corgi_pcmcia_scoop[0];
255
256         platform_add_devices(devices, ARRAY_SIZE(devices));
257 }
258
259 static void __init fixup_corgi(struct machine_desc *desc,
260                 struct tag *tags, char **cmdline, struct meminfo *mi)
261 {
262         sharpsl_save_param();
263         mi->nr_banks=1;
264         mi->bank[0].start = 0xa0000000;
265         mi->bank[0].node = 0;
266         if (machine_is_corgi())
267                 mi->bank[0].size = (32*1024*1024);
268         else
269                 mi->bank[0].size = (64*1024*1024);
270 }
271
272 static void __init corgi_init_irq(void)
273 {
274         pxa_init_irq();
275 }
276
277 static struct map_desc corgi_io_desc[] __initdata = {
278 /*    virtual     physical    length      */
279 /*      { 0xf1000000, 0x08000000, 0x01000000, MT_DEVICE },*/ /* LCDC (readable for Qt driver) */
280 /*      { 0xef700000, 0x10800000, 0x00001000, MT_DEVICE },*/  /* SCOOP */
281         { 0xef800000, 0x00000000, 0x00800000, MT_DEVICE }, /* Boot Flash */
282 };
283
284 static void __init corgi_map_io(void)
285 {
286         pxa_map_io();
287         iotable_init(corgi_io_desc,ARRAY_SIZE(corgi_io_desc));
288
289         /* setup sleep mode values */
290         PWER  = 0x00000002;
291         PFER  = 0x00000000;
292         PRER  = 0x00000002;
293         PGSR0 = 0x0158C000;
294         PGSR1 = 0x00FF0080;
295         PGSR2 = 0x0001C004;
296         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
297         PCFR |= PCFR_OPDE;
298 }
299
300 #ifdef CONFIG_MACH_CORGI
301 MACHINE_START(CORGI, "SHARP Corgi")
302         .phys_ram       = 0xa0000000,
303         .phys_io        = 0x40000000,
304         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
305         .fixup          = fixup_corgi,
306         .map_io         = corgi_map_io,
307         .init_irq       = corgi_init_irq,
308         .init_machine   = corgi_init,
309         .timer          = &pxa_timer,
310 MACHINE_END
311 #endif
312
313 #ifdef CONFIG_MACH_SHEPHERD
314 MACHINE_START(SHEPHERD, "SHARP Shepherd")
315         .phys_ram       = 0xa0000000,
316         .phys_io        = 0x40000000,
317         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
318         .fixup          = fixup_corgi,
319         .map_io         = corgi_map_io,
320         .init_irq       = corgi_init_irq,
321         .init_machine   = corgi_init,
322         .timer          = &pxa_timer,
323 MACHINE_END
324 #endif
325
326 #ifdef CONFIG_MACH_HUSKY
327 MACHINE_START(HUSKY, "SHARP Husky")
328         .phys_ram       = 0xa0000000,
329         .phys_io        = 0x40000000,
330         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
331         .fixup          = fixup_corgi,
332         .map_io         = corgi_map_io,
333         .init_irq       = corgi_init_irq,
334         .init_machine   = corgi_init,
335         .timer          = &pxa_timer,
336 MACHINE_END
337 #endif
338