Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
| 43 | #include "generic.h" |
| 44 | |
| 45 | |
| 46 | /* |
| 47 | * Corgi SCOOP Device |
| 48 | */ |
| 49 | static struct resource corgi_scoop_resources[] = { |
| 50 | [0] = { |
| 51 | .start = 0x10800000, |
| 52 | .end = 0x10800fff, |
| 53 | .flags = IORESOURCE_MEM, |
| 54 | }, |
| 55 | }; |
| 56 | |
| 57 | static struct scoop_config corgi_scoop_setup = { |
| 58 | .io_dir = CORGI_SCOOP_IO_DIR, |
| 59 | .io_out = CORGI_SCOOP_IO_OUT, |
| 60 | }; |
| 61 | |
Richard Purdie | 0ce7625 | 2005-09-05 20:49:54 +0100 | [diff] [blame] | 62 | static 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 Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | struct 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 Purdie | 41b1bce | 2005-09-06 15:19:05 -0700 | [diff] [blame] | 89 | struct platform_device corgissp_device = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | .name = "corgi-ssp", |
| 91 | .dev = { |
| 92 | .parent = &corgiscoop_device.dev, |
| 93 | }, |
| 94 | .id = -1, |
| 95 | }; |
| 96 | |
| 97 | |
| 98 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | * Corgi Backlight Device |
| 100 | */ |
| 101 | static 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 Purdie | f7ceff3 | 2005-09-06 15:19:07 -0700 | [diff] [blame^] | 111 | * Corgi Keyboard Device |
| 112 | */ |
| 113 | static struct platform_device corgikbd_device = { |
| 114 | .name = "corgi-keyboard", |
| 115 | .id = -1, |
| 116 | }; |
| 117 | |
| 118 | |
| 119 | /* |
| 120 | * Corgi Touch Screen Device |
| 121 | */ |
| 122 | static 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 Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Richard Purdie | f7ceff3 | 2005-09-06 15:19:07 -0700 | [diff] [blame^] | 207 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | /* |
| 209 | * USB Device Controller |
| 210 | */ |
| 211 | static 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 | |
| 223 | static 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 | |
| 229 | static struct platform_device *devices[] __initdata = { |
| 230 | &corgiscoop_device, |
| 231 | &corgissp_device, |
| 232 | &corgifb_device, |
Richard Purdie | f7ceff3 | 2005-09-06 15:19:07 -0700 | [diff] [blame^] | 233 | &corgikbd_device, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | &corgibl_device, |
Richard Purdie | f7ceff3 | 2005-09-06 15:19:07 -0700 | [diff] [blame^] | 235 | &corgits_device, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | }; |
| 237 | |
| 238 | static void __init corgi_init(void) |
| 239 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Richard Purdie | 0ce7625 | 2005-09-05 20:49:54 +0100 | [diff] [blame] | 244 | scoop_num = 1; |
| 245 | scoop_devs = &corgi_pcmcia_scoop[0]; |
| 246 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
| 248 | } |
| 249 | |
| 250 | static 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 | |
| 263 | static void __init corgi_init_irq(void) |
| 264 | { |
| 265 | pxa_init_irq(); |
| 266 | } |
| 267 | |
| 268 | static 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 | |
| 275 | static 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 |
| 292 | MACHINE_START(CORGI, "SHARP Corgi") |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 293 | .phys_ram = 0xa0000000, |
| 294 | .phys_io = 0x40000000, |
Russell King | 68070bd | 2005-07-04 10:44:34 +0100 | [diff] [blame] | 295 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 296 | .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 Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | MACHINE_END |
| 302 | #endif |
| 303 | |
| 304 | #ifdef CONFIG_MACH_SHEPHERD |
| 305 | MACHINE_START(SHEPHERD, "SHARP Shepherd") |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 306 | .phys_ram = 0xa0000000, |
| 307 | .phys_io = 0x40000000, |
Russell King | 68070bd | 2005-07-04 10:44:34 +0100 | [diff] [blame] | 308 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 309 | .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 Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | MACHINE_END |
| 315 | #endif |
| 316 | |
| 317 | #ifdef CONFIG_MACH_HUSKY |
| 318 | MACHINE_START(HUSKY, "SHARP Husky") |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 319 | .phys_ram = 0xa0000000, |
| 320 | .phys_io = 0x40000000, |
Russell King | 68070bd | 2005-07-04 10:44:34 +0100 | [diff] [blame] | 321 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 322 | .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 Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | MACHINE_END |
| 328 | #endif |
| 329 | |