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1da177e4 LT |
1 | /* |
2 | * linux/arch/arm/mach-pxa/lubbock.c | |
3 | * | |
4 | * Support for the Intel DBPXA250 Development Platform. | |
5 | * | |
6 | * Author: Nicolas Pitre | |
7 | * Created: Jun 15, 2001 | |
8 | * Copyright: MontaVista Software Inc. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | #include <linux/module.h> | |
15 | #include <linux/kernel.h> | |
16 | #include <linux/init.h> | |
d052d1be | 17 | #include <linux/platform_device.h> |
22f11c4e | 18 | #include <linux/sysdev.h> |
1da177e4 LT |
19 | #include <linux/major.h> |
20 | #include <linux/fb.h> | |
21 | #include <linux/interrupt.h> | |
74ec71e1 TP |
22 | #include <linux/mtd/mtd.h> |
23 | #include <linux/mtd/partitions.h> | |
1da177e4 LT |
24 | |
25 | #include <asm/setup.h> | |
26 | #include <asm/memory.h> | |
27 | #include <asm/mach-types.h> | |
28 | #include <asm/hardware.h> | |
29 | #include <asm/irq.h> | |
74ec71e1 | 30 | #include <asm/sizes.h> |
1da177e4 LT |
31 | |
32 | #include <asm/mach/arch.h> | |
33 | #include <asm/mach/map.h> | |
34 | #include <asm/mach/irq.h> | |
74ec71e1 | 35 | #include <asm/mach/flash.h> |
1da177e4 LT |
36 | |
37 | #include <asm/hardware/sa1111.h> | |
38 | ||
39 | #include <asm/arch/pxa-regs.h> | |
40 | #include <asm/arch/lubbock.h> | |
41 | #include <asm/arch/udc.h> | |
6f475c01 | 42 | #include <asm/arch/irda.h> |
1da177e4 LT |
43 | #include <asm/arch/pxafb.h> |
44 | #include <asm/arch/mmc.h> | |
45 | ||
46 | #include "generic.h" | |
47 | ||
48 | ||
49 | #define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080) | |
50 | ||
51 | void lubbock_set_misc_wr(unsigned int mask, unsigned int set) | |
52 | { | |
53 | unsigned long flags; | |
54 | ||
55 | local_irq_save(flags); | |
56 | LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask); | |
57 | local_irq_restore(flags); | |
58 | } | |
59 | EXPORT_SYMBOL(lubbock_set_misc_wr); | |
60 | ||
61 | static unsigned long lubbock_irq_enabled; | |
62 | ||
63 | static void lubbock_mask_irq(unsigned int irq) | |
64 | { | |
65 | int lubbock_irq = (irq - LUBBOCK_IRQ(0)); | |
66 | LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq)); | |
67 | } | |
68 | ||
69 | static void lubbock_unmask_irq(unsigned int irq) | |
70 | { | |
71 | int lubbock_irq = (irq - LUBBOCK_IRQ(0)); | |
72 | /* the irq can be acknowledged only if deasserted, so it's done here */ | |
73 | LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq); | |
74 | LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq)); | |
75 | } | |
76 | ||
77 | static struct irqchip lubbock_irq_chip = { | |
78 | .ack = lubbock_mask_irq, | |
79 | .mask = lubbock_mask_irq, | |
80 | .unmask = lubbock_unmask_irq, | |
81 | }; | |
82 | ||
83 | static void lubbock_irq_handler(unsigned int irq, struct irqdesc *desc, | |
84 | struct pt_regs *regs) | |
85 | { | |
86 | unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled; | |
87 | do { | |
88 | GEDR(0) = GPIO_bit(0); /* clear our parent irq */ | |
89 | if (likely(pending)) { | |
90 | irq = LUBBOCK_IRQ(0) + __ffs(pending); | |
91 | desc = irq_desc + irq; | |
664399e1 | 92 | desc_handle_irq(irq, desc, regs); |
1da177e4 LT |
93 | } |
94 | pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled; | |
95 | } while (pending); | |
96 | } | |
97 | ||
98 | static void __init lubbock_init_irq(void) | |
99 | { | |
100 | int irq; | |
101 | ||
102 | pxa_init_irq(); | |
103 | ||
104 | /* setup extra lubbock irqs */ | |
105 | for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) { | |
106 | set_irq_chip(irq, &lubbock_irq_chip); | |
107 | set_irq_handler(irq, do_level_IRQ); | |
108 | set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); | |
109 | } | |
110 | ||
111 | set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler); | |
112 | set_irq_type(IRQ_GPIO(0), IRQT_FALLING); | |
113 | } | |
114 | ||
22f11c4e NP |
115 | #ifdef CONFIG_PM |
116 | ||
117 | static int lubbock_irq_resume(struct sys_device *dev) | |
118 | { | |
119 | LUB_IRQ_MASK_EN = lubbock_irq_enabled; | |
120 | return 0; | |
121 | } | |
122 | ||
123 | static struct sysdev_class lubbock_irq_sysclass = { | |
124 | set_kset_name("cpld_irq"), | |
125 | .resume = lubbock_irq_resume, | |
126 | }; | |
127 | ||
128 | static struct sys_device lubbock_irq_device = { | |
129 | .cls = &lubbock_irq_sysclass, | |
130 | }; | |
131 | ||
132 | static int __init lubbock_irq_device_init(void) | |
133 | { | |
134 | int ret = sysdev_class_register(&lubbock_irq_sysclass); | |
135 | if (ret == 0) | |
136 | ret = sysdev_register(&lubbock_irq_device); | |
137 | return ret; | |
138 | } | |
139 | ||
140 | device_initcall(lubbock_irq_device_init); | |
141 | ||
142 | #endif | |
143 | ||
1da177e4 LT |
144 | static int lubbock_udc_is_connected(void) |
145 | { | |
146 | return (LUB_MISC_RD & (1 << 9)) == 0; | |
147 | } | |
148 | ||
149 | static struct pxa2xx_udc_mach_info udc_info __initdata = { | |
150 | .udc_is_connected = lubbock_udc_is_connected, | |
151 | // no D+ pullup; lubbock can't connect/disconnect in software | |
152 | }; | |
153 | ||
2cef2d55 NP |
154 | static struct platform_device lub_audio_device = { |
155 | .name = "pxa2xx-ac97", | |
156 | .id = -1, | |
157 | }; | |
158 | ||
1da177e4 LT |
159 | static struct resource sa1111_resources[] = { |
160 | [0] = { | |
161 | .start = 0x10000000, | |
162 | .end = 0x10001fff, | |
163 | .flags = IORESOURCE_MEM, | |
164 | }, | |
165 | [1] = { | |
166 | .start = LUBBOCK_SA1111_IRQ, | |
167 | .end = LUBBOCK_SA1111_IRQ, | |
168 | .flags = IORESOURCE_IRQ, | |
169 | }, | |
170 | }; | |
171 | ||
172 | static struct platform_device sa1111_device = { | |
173 | .name = "sa1111", | |
174 | .id = -1, | |
175 | .num_resources = ARRAY_SIZE(sa1111_resources), | |
176 | .resource = sa1111_resources, | |
177 | }; | |
178 | ||
179 | static struct resource smc91x_resources[] = { | |
180 | [0] = { | |
181 | .name = "smc91x-regs", | |
85eb226c | 182 | .start = 0x0c000c00, |
1da177e4 LT |
183 | .end = 0x0c0fffff, |
184 | .flags = IORESOURCE_MEM, | |
185 | }, | |
186 | [1] = { | |
187 | .start = LUBBOCK_ETH_IRQ, | |
188 | .end = LUBBOCK_ETH_IRQ, | |
189 | .flags = IORESOURCE_IRQ, | |
190 | }, | |
191 | [2] = { | |
192 | .name = "smc91x-attrib", | |
193 | .start = 0x0e000000, | |
194 | .end = 0x0e0fffff, | |
195 | .flags = IORESOURCE_MEM, | |
196 | }, | |
197 | }; | |
198 | ||
199 | static struct platform_device smc91x_device = { | |
200 | .name = "smc91x", | |
201 | .id = -1, | |
202 | .num_resources = ARRAY_SIZE(smc91x_resources), | |
203 | .resource = smc91x_resources, | |
204 | }; | |
205 | ||
74ec71e1 TP |
206 | static struct resource flash_resources[] = { |
207 | [0] = { | |
208 | .start = 0x00000000, | |
209 | .end = SZ_64M - 1, | |
210 | .flags = IORESOURCE_MEM, | |
211 | }, | |
212 | [1] = { | |
213 | .start = 0x04000000, | |
214 | .end = 0x04000000 + SZ_64M - 1, | |
215 | .flags = IORESOURCE_MEM, | |
216 | }, | |
217 | }; | |
218 | ||
219 | static struct mtd_partition lubbock_partitions[] = { | |
220 | { | |
221 | .name = "Bootloader", | |
222 | .size = 0x00040000, | |
223 | .offset = 0, | |
224 | .mask_flags = MTD_WRITEABLE /* force read-only */ | |
225 | },{ | |
226 | .name = "Kernel", | |
227 | .size = 0x00100000, | |
228 | .offset = 0x00040000, | |
229 | },{ | |
230 | .name = "Filesystem", | |
231 | .size = MTDPART_SIZ_FULL, | |
232 | .offset = 0x00140000 | |
233 | } | |
234 | }; | |
235 | ||
236 | static struct flash_platform_data lubbock_flash_data[2] = { | |
237 | { | |
238 | .map_name = "cfi_probe", | |
239 | .parts = lubbock_partitions, | |
240 | .nr_parts = ARRAY_SIZE(lubbock_partitions), | |
241 | }, { | |
242 | .map_name = "cfi_probe", | |
243 | .parts = NULL, | |
244 | .nr_parts = 0, | |
245 | } | |
246 | }; | |
247 | ||
248 | static struct platform_device lubbock_flash_device[2] = { | |
249 | { | |
250 | .name = "pxa2xx-flash", | |
251 | .id = 0, | |
252 | .dev = { | |
253 | .platform_data = &lubbock_flash_data[0], | |
254 | }, | |
255 | .resource = &flash_resources[0], | |
256 | .num_resources = 1, | |
257 | }, | |
258 | { | |
259 | .name = "pxa2xx-flash", | |
260 | .id = 1, | |
261 | .dev = { | |
262 | .platform_data = &lubbock_flash_data[1], | |
263 | }, | |
264 | .resource = &flash_resources[1], | |
265 | .num_resources = 1, | |
266 | }, | |
267 | }; | |
268 | ||
1da177e4 LT |
269 | static struct platform_device *devices[] __initdata = { |
270 | &sa1111_device, | |
2cef2d55 | 271 | &lub_audio_device, |
1da177e4 | 272 | &smc91x_device, |
74ec71e1 TP |
273 | &lubbock_flash_device[0], |
274 | &lubbock_flash_device[1], | |
1da177e4 LT |
275 | }; |
276 | ||
277 | static struct pxafb_mach_info sharp_lm8v31 __initdata = { | |
278 | .pixclock = 270000, | |
279 | .xres = 640, | |
280 | .yres = 480, | |
281 | .bpp = 16, | |
282 | .hsync_len = 1, | |
283 | .left_margin = 3, | |
284 | .right_margin = 3, | |
285 | .vsync_len = 1, | |
286 | .upper_margin = 0, | |
287 | .lower_margin = 0, | |
288 | .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
289 | .cmap_greyscale = 0, | |
290 | .cmap_inverse = 0, | |
291 | .cmap_static = 0, | |
292 | .lccr0 = LCCR0_SDS, | |
293 | .lccr3 = LCCR3_PCP | LCCR3_Acb(255), | |
294 | }; | |
295 | ||
85eb226c DB |
296 | #define MMC_POLL_RATE msecs_to_jiffies(1000) |
297 | ||
298 | static void lubbock_mmc_poll(unsigned long); | |
299 | static irqreturn_t (*mmc_detect_int)(int, void *, struct pt_regs *); | |
300 | ||
301 | static struct timer_list mmc_timer = { | |
302 | .function = lubbock_mmc_poll, | |
303 | }; | |
304 | ||
305 | static void lubbock_mmc_poll(unsigned long data) | |
306 | { | |
307 | unsigned long flags; | |
308 | ||
309 | /* clear any previous irq state, then ... */ | |
310 | local_irq_save(flags); | |
311 | LUB_IRQ_SET_CLR &= ~(1 << 0); | |
312 | local_irq_restore(flags); | |
313 | ||
314 | /* poll until mmc/sd card is removed */ | |
315 | if (LUB_IRQ_SET_CLR & (1 << 0)) | |
316 | mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE); | |
317 | else { | |
318 | (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data, NULL); | |
319 | enable_irq(LUBBOCK_SD_IRQ); | |
320 | } | |
321 | } | |
322 | ||
323 | static irqreturn_t lubbock_detect_int(int irq, void *data, struct pt_regs *regs) | |
324 | { | |
325 | /* IRQ is level triggered; disable, and poll for removal */ | |
326 | disable_irq(irq); | |
327 | mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE); | |
328 | ||
329 | return mmc_detect_int(irq, data, regs); | |
330 | } | |
331 | ||
332 | static int lubbock_mci_init(struct device *dev, | |
333 | irqreturn_t (*detect_int)(int, void *, struct pt_regs *), | |
334 | void *data) | |
1da177e4 LT |
335 | { |
336 | /* setup GPIO for PXA25x MMC controller */ | |
337 | pxa_gpio_mode(GPIO6_MMCCLK_MD); | |
338 | pxa_gpio_mode(GPIO8_MMCCS0_MD); | |
339 | ||
85eb226c DB |
340 | /* detect card insert/eject */ |
341 | mmc_detect_int = detect_int; | |
342 | init_timer(&mmc_timer); | |
343 | mmc_timer.data = (unsigned long) data; | |
344 | return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int, | |
345 | SA_SAMPLE_RANDOM, "lubbock-sd-detect", data); | |
346 | } | |
347 | ||
348 | static int lubbock_mci_get_ro(struct device *dev) | |
349 | { | |
350 | return (LUB_MISC_RD & (1 << 2)) != 0; | |
351 | } | |
352 | ||
353 | static void lubbock_mci_exit(struct device *dev, void *data) | |
354 | { | |
355 | free_irq(LUBBOCK_SD_IRQ, data); | |
356 | del_timer_sync(&mmc_timer); | |
1da177e4 LT |
357 | } |
358 | ||
359 | static struct pxamci_platform_data lubbock_mci_platform_data = { | |
360 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, | |
85eb226c | 361 | .detect_delay = 1, |
1da177e4 | 362 | .init = lubbock_mci_init, |
85eb226c DB |
363 | .get_ro = lubbock_mci_get_ro, |
364 | .exit = lubbock_mci_exit, | |
1da177e4 LT |
365 | }; |
366 | ||
6f475c01 NP |
367 | static void lubbock_irda_transceiver_mode(struct device *dev, int mode) |
368 | { | |
369 | unsigned long flags; | |
370 | ||
371 | local_irq_save(flags); | |
372 | if (mode & IR_SIRMODE) { | |
373 | LUB_MISC_WR &= ~(1 << 4); | |
374 | } else if (mode & IR_FIRMODE) { | |
375 | LUB_MISC_WR |= 1 << 4; | |
376 | } | |
377 | local_irq_restore(flags); | |
378 | } | |
379 | ||
380 | static struct pxaficp_platform_data lubbock_ficp_platform_data = { | |
381 | .transceiver_cap = IR_SIRMODE | IR_FIRMODE, | |
382 | .transceiver_mode = lubbock_irda_transceiver_mode, | |
383 | }; | |
384 | ||
1da177e4 LT |
385 | static void __init lubbock_init(void) |
386 | { | |
74ec71e1 TP |
387 | int flashboot = (LUB_CONF_SWITCHES & 1); |
388 | ||
1da177e4 LT |
389 | pxa_set_udc_info(&udc_info); |
390 | set_pxa_fb_info(&sharp_lm8v31); | |
391 | pxa_set_mci_info(&lubbock_mci_platform_data); | |
6f475c01 | 392 | pxa_set_ficp_info(&lubbock_ficp_platform_data); |
74ec71e1 TP |
393 | |
394 | lubbock_flash_data[0].width = lubbock_flash_data[1].width = | |
395 | (BOOT_DEF & 1) ? 2 : 4; | |
396 | /* Compensate for the nROMBT switch which swaps the flash banks */ | |
397 | printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n", | |
398 | flashboot?"Flash":"ROM", flashboot); | |
399 | ||
400 | lubbock_flash_data[flashboot^1].name = "application-flash"; | |
401 | lubbock_flash_data[flashboot].name = "boot-rom"; | |
1da177e4 LT |
402 | (void) platform_add_devices(devices, ARRAY_SIZE(devices)); |
403 | } | |
404 | ||
405 | static struct map_desc lubbock_io_desc[] __initdata = { | |
6f9182eb DS |
406 | { /* CPLD */ |
407 | .virtual = LUBBOCK_FPGA_VIRT, | |
408 | .pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS), | |
409 | .length = 0x00100000, | |
410 | .type = MT_DEVICE | |
411 | } | |
1da177e4 LT |
412 | }; |
413 | ||
414 | static void __init lubbock_map_io(void) | |
415 | { | |
416 | pxa_map_io(); | |
417 | iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc)); | |
418 | ||
419 | /* This enables the BTUART */ | |
420 | pxa_gpio_mode(GPIO42_BTRXD_MD); | |
421 | pxa_gpio_mode(GPIO43_BTTXD_MD); | |
422 | pxa_gpio_mode(GPIO44_BTCTS_MD); | |
423 | pxa_gpio_mode(GPIO45_BTRTS_MD); | |
424 | ||
425 | /* This is for the SMC chip select */ | |
426 | pxa_gpio_mode(GPIO79_nCS_3_MD); | |
427 | ||
428 | /* setup sleep mode values */ | |
429 | PWER = 0x00000002; | |
430 | PFER = 0x00000000; | |
431 | PRER = 0x00000002; | |
432 | PGSR0 = 0x00008000; | |
433 | PGSR1 = 0x003F0202; | |
434 | PGSR2 = 0x0001C000; | |
435 | PCFR |= PCFR_OPDE; | |
436 | } | |
437 | ||
438 | MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)") | |
e9dea0c6 | 439 | /* Maintainer: MontaVista Software Inc. */ |
e9dea0c6 | 440 | .phys_io = 0x40000000, |
68070bde | 441 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
e9dea0c6 RK |
442 | .map_io = lubbock_map_io, |
443 | .init_irq = lubbock_init_irq, | |
1da177e4 | 444 | .timer = &pxa_timer, |
e9dea0c6 | 445 | .init_machine = lubbock_init, |
1da177e4 | 446 | MACHINE_END |