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1da177e4 LT |
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 | struct 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 | */ | |
81 | static 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 | */ | |
93 | static struct w100fb_mach_info corgi_fb_info = { | |
94 | .w100fb_ssp_send = corgi_ssp_lcdtg_send, | |
95 | .comadj = -1, | |
96 | .phadadj = -1, | |
97 | }; | |
98 | ||
99 | static struct resource corgi_fb_resources[] = { | |
100 | [0] = { | |
101 | .start = 0x08000000, | |
102 | .end = 0x08ffffff, | |
103 | .flags = IORESOURCE_MEM, | |
104 | }, | |
105 | }; | |
106 | ||
107 | static 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 | */ | |
122 | static 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 | */ | |
137 | static struct mmc_detect { | |
138 | struct timer_list detect_timer; | |
139 | void *devid; | |
140 | } mmc_detect; | |
141 | ||
142 | static void mmc_detect_callback(unsigned long data) | |
143 | { | |
144 | mmc_detect_change(mmc_detect.devid); | |
145 | } | |
146 | ||
147 | static 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 | ||
154 | static 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 | ||
180 | static 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 | ||
193 | static 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 | ||
199 | static 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 | */ | |
210 | static 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 | ||
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, | |
225 | }; | |
226 | ||
227 | ||
228 | static struct platform_device *devices[] __initdata = { | |
229 | &corgiscoop_device, | |
230 | &corgissp_device, | |
231 | &corgifb_device, | |
232 | &corgibl_device, | |
233 | }; | |
234 | ||
235 | static 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 | ||
247 | static 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 | ||
260 | static void __init corgi_init_irq(void) | |
261 | { | |
262 | pxa_init_irq(); | |
263 | } | |
264 | ||
265 | static 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 | ||
272 | static 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 | |
289 | MACHINE_START(CORGI, "SHARP Corgi") | |
e9dea0c6 RK |
290 | .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, | |
1da177e4 LT |
298 | MACHINE_END |
299 | #endif | |
300 | ||
301 | #ifdef CONFIG_MACH_SHEPHERD | |
302 | MACHINE_START(SHEPHERD, "SHARP Shepherd") | |
e9dea0c6 RK |
303 | .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, | |
1da177e4 LT |
311 | MACHINE_END |
312 | #endif | |
313 | ||
314 | #ifdef CONFIG_MACH_HUSKY | |
315 | MACHINE_START(HUSKY, "SHARP Husky") | |
e9dea0c6 RK |
316 | .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, | |
1da177e4 LT |
324 | MACHINE_END |
325 | #endif | |
326 |