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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> | |
1da177e4 LT |
42 | |
43 | #include "generic.h" | |
50a5de44 | 44 | #include "sharpsl.h" |
1da177e4 LT |
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 | ||
0ce7625f RP |
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 | ||
1da177e4 LT |
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 | */ | |
41b1bce8 | 90 | struct platform_device corgissp_device = { |
1da177e4 LT |
91 | .name = "corgi-ssp", |
92 | .dev = { | |
93 | .parent = &corgiscoop_device.dev, | |
94 | }, | |
95 | .id = -1, | |
96 | }; | |
97 | ||
50a5de44 RP |
98 | struct corgissp_machinfo corgi_ssp_machinfo = { |
99 | .port = 1, | |
100 | .cs_lcdcon = CORGI_GPIO_LCDCON_CS, | |
101 | .cs_ads7846 = CORGI_GPIO_ADS7846_CS, | |
102 | .cs_max1111 = CORGI_GPIO_MAX1111_CS, | |
103 | .clk_lcdcon = 76, | |
104 | .clk_ads7846 = 2, | |
105 | .clk_max1111 = 8, | |
106 | }; | |
107 | ||
1da177e4 | 108 | |
1da177e4 LT |
109 | /* |
110 | * Corgi Backlight Device | |
111 | */ | |
112 | static struct platform_device corgibl_device = { | |
113 | .name = "corgi-bl", | |
114 | .dev = { | |
115 | .parent = &corgifb_device.dev, | |
116 | }, | |
117 | .id = -1, | |
118 | }; | |
119 | ||
120 | ||
f7ceff34 RP |
121 | /* |
122 | * Corgi Keyboard Device | |
123 | */ | |
124 | static struct platform_device corgikbd_device = { | |
125 | .name = "corgi-keyboard", | |
126 | .id = -1, | |
127 | }; | |
128 | ||
129 | ||
130 | /* | |
131 | * Corgi Touch Screen Device | |
132 | */ | |
133 | static struct platform_device corgits_device = { | |
134 | .name = "corgi-ts", | |
135 | .dev = { | |
136 | .parent = &corgissp_device.dev, | |
137 | }, | |
138 | .id = -1, | |
139 | }; | |
140 | ||
141 | ||
1da177e4 LT |
142 | /* |
143 | * MMC/SD Device | |
144 | * | |
aa6c2e79 | 145 | * The card detect interrupt isn't debounced so we delay it by 250ms |
1da177e4 LT |
146 | * to give the card a chance to fully insert/eject. |
147 | */ | |
aa6c2e79 | 148 | static struct pxamci_platform_data corgi_mci_platform_data; |
1da177e4 | 149 | |
aa6c2e79 | 150 | static int corgi_mci_init(struct device *dev, irqreturn_t (*corgi_detect_int)(int, void *, struct pt_regs *), void *data) |
1da177e4 LT |
151 | { |
152 | int err; | |
153 | ||
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); | |
159 | ||
aa6c2e79 | 160 | corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250); |
1da177e4 | 161 | |
aa6c2e79 | 162 | err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int, SA_INTERRUPT, |
1da177e4 LT |
163 | "MMC card detect", data); |
164 | if (err) { | |
165 | printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n"); | |
166 | return -1; | |
167 | } | |
168 | ||
169 | set_irq_type(CORGI_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE); | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
174 | static void corgi_mci_setpower(struct device *dev, unsigned int vdd) | |
175 | { | |
176 | struct pxamci_platform_data* p_d = dev->platform_data; | |
177 | ||
178 | if (( 1 << vdd) & p_d->ocr_mask) { | |
179 | printk(KERN_DEBUG "%s: on\n", __FUNCTION__); | |
180 | GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR); | |
181 | } else { | |
182 | printk(KERN_DEBUG "%s: off\n", __FUNCTION__); | |
183 | GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR); | |
184 | } | |
185 | } | |
186 | ||
3870ee8c RP |
187 | static int corgi_mci_get_ro(struct device *dev) |
188 | { | |
189 | return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP); | |
190 | } | |
191 | ||
1da177e4 LT |
192 | static void corgi_mci_exit(struct device *dev, void *data) |
193 | { | |
194 | free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data); | |
1da177e4 LT |
195 | } |
196 | ||
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, | |
3870ee8c | 200 | .get_ro = corgi_mci_get_ro, |
1da177e4 LT |
201 | .setpower = corgi_mci_setpower, |
202 | .exit = corgi_mci_exit, | |
203 | }; | |
204 | ||
205 | ||
f7ceff34 | 206 | |
1da177e4 LT |
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, | |
f7ceff34 | 232 | &corgikbd_device, |
1da177e4 | 233 | &corgibl_device, |
f7ceff34 | 234 | &corgits_device, |
1da177e4 LT |
235 | }; |
236 | ||
237 | static void __init corgi_init(void) | |
238 | { | |
50a5de44 RP |
239 | corgi_ssp_set_machinfo(&corgi_ssp_machinfo); |
240 | ||
1da177e4 LT |
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); | |
244 | ||
0ce7625f RP |
245 | scoop_num = 1; |
246 | scoop_devs = &corgi_pcmcia_scoop[0]; | |
247 | ||
1da177e4 LT |
248 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
249 | } | |
250 | ||
251 | static void __init fixup_corgi(struct machine_desc *desc, | |
252 | struct tag *tags, char **cmdline, struct meminfo *mi) | |
253 | { | |
254 | sharpsl_save_param(); | |
255 | mi->nr_banks=1; | |
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); | |
260 | else | |
261 | mi->bank[0].size = (64*1024*1024); | |
262 | } | |
263 | ||
264 | static void __init corgi_init_irq(void) | |
265 | { | |
266 | pxa_init_irq(); | |
267 | } | |
268 | ||
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 */ | |
274 | }; | |
275 | ||
276 | static void __init corgi_map_io(void) | |
277 | { | |
278 | pxa_map_io(); | |
279 | iotable_init(corgi_io_desc,ARRAY_SIZE(corgi_io_desc)); | |
280 | ||
281 | /* setup sleep mode values */ | |
282 | PWER = 0x00000002; | |
283 | PFER = 0x00000000; | |
284 | PRER = 0x00000002; | |
285 | PGSR0 = 0x0158C000; | |
286 | PGSR1 = 0x00FF0080; | |
287 | PGSR2 = 0x0001C004; | |
288 | /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */ | |
289 | PCFR |= PCFR_OPDE; | |
290 | } | |
291 | ||
292 | #ifdef CONFIG_MACH_CORGI | |
293 | MACHINE_START(CORGI, "SHARP Corgi") | |
e9dea0c6 RK |
294 | .phys_ram = 0xa0000000, |
295 | .phys_io = 0x40000000, | |
68070bde | 296 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
e9dea0c6 RK |
297 | .fixup = fixup_corgi, |
298 | .map_io = corgi_map_io, | |
299 | .init_irq = corgi_init_irq, | |
300 | .init_machine = corgi_init, | |
301 | .timer = &pxa_timer, | |
1da177e4 LT |
302 | MACHINE_END |
303 | #endif | |
304 | ||
305 | #ifdef CONFIG_MACH_SHEPHERD | |
306 | MACHINE_START(SHEPHERD, "SHARP Shepherd") | |
e9dea0c6 RK |
307 | .phys_ram = 0xa0000000, |
308 | .phys_io = 0x40000000, | |
68070bde | 309 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
e9dea0c6 RK |
310 | .fixup = fixup_corgi, |
311 | .map_io = corgi_map_io, | |
312 | .init_irq = corgi_init_irq, | |
313 | .init_machine = corgi_init, | |
314 | .timer = &pxa_timer, | |
1da177e4 LT |
315 | MACHINE_END |
316 | #endif | |
317 | ||
318 | #ifdef CONFIG_MACH_HUSKY | |
319 | MACHINE_START(HUSKY, "SHARP Husky") | |
e9dea0c6 RK |
320 | .phys_ram = 0xa0000000, |
321 | .phys_io = 0x40000000, | |
68070bde | 322 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
e9dea0c6 RK |
323 | .fixup = fixup_corgi, |
324 | .map_io = corgi_map_io, | |
325 | .init_irq = corgi_init_irq, | |
326 | .init_machine = corgi_init, | |
327 | .timer = &pxa_timer, | |
1da177e4 LT |
328 | MACHINE_END |
329 | #endif | |
330 |