1 | /* |
2 | * linux/arch/arm/mach-sa1100/collie.c |
3 | * |
4 | * May be copied or modified under the terms of the GNU General Public |
5 | * License. See linux/COPYING for more information. |
6 | * |
7 | * This file contains all Collie-specific tweaks. |
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 | * ChangeLog: |
14 | * 2006 Pavel Machek <pavel@ucw.cz> |
15 | * 03-06-2004 John Lenz <lenz@cs.wisc.edu> |
16 | * 06-04-2002 Chris Larson <kergoth@digitalnemesis.net> |
17 | * 04-16-2001 Lineo Japan,Inc. ... |
18 | */ |
19 | |
20 | #include <linux/init.h> |
21 | #include <linux/kernel.h> |
22 | #include <linux/tty.h> |
23 | #include <linux/delay.h> |
24 | #include <linux/platform_data/sa11x0-serial.h> |
25 | #include <linux/platform_device.h> |
26 | #include <linux/mfd/ucb1x00.h> |
27 | #include <linux/mtd/mtd.h> |
28 | #include <linux/mtd/partitions.h> |
29 | #include <linux/timer.h> |
30 | #include <linux/gpio_keys.h> |
31 | #include <linux/input.h> |
32 | #include <linux/gpio.h> |
33 | #include <linux/gpio/machine.h> |
34 | #include <linux/power/gpio-charger.h> |
35 | |
36 | #include <video/sa1100fb.h> |
37 | |
38 | #include <mach/hardware.h> |
39 | #include <asm/mach-types.h> |
40 | #include <asm/page.h> |
41 | #include <asm/setup.h> |
42 | #include <mach/collie.h> |
43 | |
44 | #include <asm/mach/arch.h> |
45 | #include <asm/mach/flash.h> |
46 | #include <asm/mach/map.h> |
47 | |
48 | #include <asm/hardware/scoop.h> |
49 | #include <asm/mach/sharpsl_param.h> |
50 | #include <asm/hardware/locomo.h> |
51 | #include <linux/platform_data/mfd-mcp-sa11x0.h> |
52 | #include <mach/irqs.h> |
53 | |
54 | #include "generic.h" |
55 | |
56 | static struct resource collie_scoop_resources[] = { |
57 | [0] = DEFINE_RES_MEM(0x40800000, SZ_4K), |
58 | }; |
59 | |
60 | static struct scoop_config collie_scoop_setup = { |
61 | .io_dir = COLLIE_SCOOP_IO_DIR, |
62 | .io_out = COLLIE_SCOOP_IO_OUT, |
63 | .gpio_base = COLLIE_SCOOP_GPIO_BASE, |
64 | }; |
65 | |
66 | struct platform_device colliescoop_device = { |
67 | .name = "sharp-scoop" , |
68 | .id = -1, |
69 | .dev = { |
70 | .platform_data = &collie_scoop_setup, |
71 | }, |
72 | .num_resources = ARRAY_SIZE(collie_scoop_resources), |
73 | .resource = collie_scoop_resources, |
74 | }; |
75 | |
76 | static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = { |
77 | { |
78 | .dev = &colliescoop_device.dev, |
79 | .irq = COLLIE_IRQ_GPIO_CF_IRQ, |
80 | .cd_irq = COLLIE_IRQ_GPIO_CF_CD, |
81 | .cd_irq_str = "PCMCIA0 CD" , |
82 | }, |
83 | }; |
84 | |
85 | static struct scoop_pcmcia_config collie_pcmcia_config = { |
86 | .devs = &collie_pcmcia_scoop[0], |
87 | .num_devs = 1, |
88 | }; |
89 | |
90 | static struct ucb1x00_plat_data collie_ucb1x00_data = { |
91 | .gpio_base = COLLIE_TC35143_GPIO_BASE, |
92 | }; |
93 | |
94 | static struct mcp_plat_data collie_mcp_data = { |
95 | .mccr0 = MCCR0_ADM | MCCR0_ExtClk, |
96 | .sclk_rate = 9216000, |
97 | .codec_pdata = &collie_ucb1x00_data, |
98 | }; |
99 | |
100 | /* Battery management GPIOs */ |
101 | static struct gpiod_lookup_table collie_battery_gpiod_table = { |
102 | /* the MCP codec mcp0 has the ucb1x00 as attached device */ |
103 | .dev_id = "ucb1x00" , |
104 | .table = { |
105 | /* This is found on the main GPIO on the SA1100 */ |
106 | GPIO_LOOKUP("gpio" , COLLIE_GPIO_CO, |
107 | "main battery full" , GPIO_ACTIVE_HIGH), |
108 | GPIO_LOOKUP("gpio" , COLLIE_GPIO_MAIN_BAT_LOW, |
109 | "main battery low" , GPIO_ACTIVE_HIGH), |
110 | /* |
111 | * This is GPIO 0 on the Scoop expander, which is registered |
112 | * from common/scoop.c with this gpio chip label. |
113 | */ |
114 | GPIO_LOOKUP("sharp-scoop" , 0, |
115 | "main charge on" , GPIO_ACTIVE_HIGH), |
116 | { }, |
117 | }, |
118 | }; |
119 | |
120 | /* |
121 | * Collie AC IN |
122 | */ |
123 | static struct gpiod_lookup_table collie_power_gpiod_table = { |
124 | .dev_id = "gpio-charger" , |
125 | .table = { |
126 | GPIO_LOOKUP("gpio" , COLLIE_GPIO_AC_IN, |
127 | NULL, GPIO_ACTIVE_HIGH), |
128 | { }, |
129 | }, |
130 | }; |
131 | |
132 | static char *collie_ac_supplied_to[] = { |
133 | "main-battery" , |
134 | "backup-battery" , |
135 | }; |
136 | |
137 | static struct gpio_charger_platform_data collie_power_data = { |
138 | .name = "charger" , |
139 | .type = POWER_SUPPLY_TYPE_MAINS, |
140 | .supplied_to = collie_ac_supplied_to, |
141 | .num_supplicants = ARRAY_SIZE(collie_ac_supplied_to), |
142 | }; |
143 | |
144 | static struct platform_device collie_power_device = { |
145 | .name = "gpio-charger" , |
146 | .id = -1, |
147 | .dev.platform_data = &collie_power_data, |
148 | }; |
149 | |
150 | #ifdef CONFIG_SHARP_LOCOMO |
151 | /* |
152 | * low-level UART features. |
153 | */ |
154 | struct platform_device collie_locomo_device; |
155 | |
156 | static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl) |
157 | { |
158 | if (mctrl & TIOCM_RTS) |
159 | locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0); |
160 | else |
161 | locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1); |
162 | |
163 | if (mctrl & TIOCM_DTR) |
164 | locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0); |
165 | else |
166 | locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1); |
167 | } |
168 | |
169 | static u_int collie_uart_get_mctrl(struct uart_port *port) |
170 | { |
171 | int ret = TIOCM_CD; |
172 | unsigned int r; |
173 | |
174 | r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR); |
175 | if (r == -ENODEV) |
176 | return ret; |
177 | if (r & LOCOMO_GPIO_CTS) |
178 | ret |= TIOCM_CTS; |
179 | if (r & LOCOMO_GPIO_DSR) |
180 | ret |= TIOCM_DSR; |
181 | |
182 | return ret; |
183 | } |
184 | |
185 | static struct sa1100_port_fns collie_port_fns __initdata = { |
186 | .set_mctrl = collie_uart_set_mctrl, |
187 | .get_mctrl = collie_uart_get_mctrl, |
188 | }; |
189 | |
190 | static int collie_uart_probe(struct locomo_dev *dev) |
191 | { |
192 | return 0; |
193 | } |
194 | |
195 | static struct locomo_driver collie_uart_driver = { |
196 | .drv = { |
197 | .name = "collie_uart" , |
198 | }, |
199 | .devid = LOCOMO_DEVID_UART, |
200 | .probe = collie_uart_probe, |
201 | }; |
202 | |
203 | static int __init collie_uart_init(void) |
204 | { |
205 | return locomo_driver_register(&collie_uart_driver); |
206 | } |
207 | device_initcall(collie_uart_init); |
208 | |
209 | #endif |
210 | |
211 | |
212 | static struct resource locomo_resources[] = { |
213 | [0] = DEFINE_RES_MEM(0x40000000, SZ_8K), |
214 | [1] = DEFINE_RES_IRQ(IRQ_GPIO25), |
215 | }; |
216 | |
217 | static struct locomo_platform_data locomo_info = { |
218 | .irq_base = IRQ_BOARD_START, |
219 | }; |
220 | |
221 | struct platform_device collie_locomo_device = { |
222 | .name = "locomo" , |
223 | .id = 0, |
224 | .dev = { |
225 | .platform_data = &locomo_info, |
226 | }, |
227 | .num_resources = ARRAY_SIZE(locomo_resources), |
228 | .resource = locomo_resources, |
229 | }; |
230 | |
231 | static struct gpio_keys_button collie_gpio_keys[] = { |
232 | { |
233 | .type = EV_PWR, |
234 | .code = KEY_RESERVED, |
235 | .gpio = COLLIE_GPIO_ON_KEY, |
236 | .desc = "On key" , |
237 | .wakeup = 1, |
238 | .active_low = 1, |
239 | }, |
240 | { |
241 | .type = EV_PWR, |
242 | .code = KEY_WAKEUP, |
243 | .gpio = COLLIE_GPIO_WAKEUP, |
244 | .desc = "Sync" , |
245 | .wakeup = 1, |
246 | .active_low = 1, |
247 | }, |
248 | }; |
249 | |
250 | static struct gpio_keys_platform_data collie_gpio_keys_data = { |
251 | .buttons = collie_gpio_keys, |
252 | .nbuttons = ARRAY_SIZE(collie_gpio_keys), |
253 | }; |
254 | |
255 | static struct platform_device collie_gpio_keys_device = { |
256 | .name = "gpio-keys" , |
257 | .id = -1, |
258 | .dev = { |
259 | .platform_data = &collie_gpio_keys_data, |
260 | }, |
261 | }; |
262 | |
263 | static struct platform_device *devices[] __initdata = { |
264 | &collie_locomo_device, |
265 | &colliescoop_device, |
266 | &collie_power_device, |
267 | &collie_gpio_keys_device, |
268 | }; |
269 | |
270 | static struct mtd_partition collie_partitions[] = { |
271 | { |
272 | .name = "bootloader" , |
273 | .offset = 0, |
274 | .size = 0x000C0000, |
275 | .mask_flags = MTD_WRITEABLE |
276 | }, { |
277 | .name = "kernel" , |
278 | .offset = MTDPART_OFS_APPEND, |
279 | .size = 0x00100000, |
280 | }, { |
281 | .name = "rootfs" , |
282 | .offset = MTDPART_OFS_APPEND, |
283 | .size = 0x00e20000, |
284 | }, { |
285 | .name = "bootblock" , |
286 | .offset = MTDPART_OFS_APPEND, |
287 | .size = 0x00020000, |
288 | .mask_flags = MTD_WRITEABLE |
289 | } |
290 | }; |
291 | |
292 | static int collie_flash_init(void) |
293 | { |
294 | int rc = gpio_request(gpio: COLLIE_GPIO_VPEN, label: "flash Vpp enable" ); |
295 | if (rc) |
296 | return rc; |
297 | |
298 | rc = gpio_direction_output(gpio: COLLIE_GPIO_VPEN, value: 1); |
299 | if (rc) |
300 | gpio_free(gpio: COLLIE_GPIO_VPEN); |
301 | |
302 | return rc; |
303 | } |
304 | |
305 | static void collie_set_vpp(int vpp) |
306 | { |
307 | gpio_set_value(gpio: COLLIE_GPIO_VPEN, value: vpp); |
308 | } |
309 | |
310 | static void collie_flash_exit(void) |
311 | { |
312 | gpio_free(gpio: COLLIE_GPIO_VPEN); |
313 | } |
314 | |
315 | static struct flash_platform_data collie_flash_data = { |
316 | .map_name = "cfi_probe" , |
317 | .init = collie_flash_init, |
318 | .set_vpp = collie_set_vpp, |
319 | .exit = collie_flash_exit, |
320 | .parts = collie_partitions, |
321 | .nr_parts = ARRAY_SIZE(collie_partitions), |
322 | }; |
323 | |
324 | static struct resource collie_flash_resources[] = { |
325 | DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M), |
326 | }; |
327 | |
328 | static struct sa1100fb_mach_info collie_lcd_info = { |
329 | .pixclock = 171521, .bpp = 16, |
330 | .xres = 320, .yres = 240, |
331 | |
332 | .hsync_len = 5, .vsync_len = 1, |
333 | .left_margin = 11, .upper_margin = 2, |
334 | .right_margin = 30, .lower_margin = 0, |
335 | |
336 | .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
337 | |
338 | .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act, |
339 | .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2), |
340 | |
341 | #ifdef CONFIG_BACKLIGHT_LOCOMO |
342 | .lcd_power = locomolcd_power |
343 | #endif |
344 | }; |
345 | |
346 | static void __init collie_init(void) |
347 | { |
348 | int ret = 0; |
349 | |
350 | /* cpu initialize */ |
351 | GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | |
352 | GPIO_MCP_CLK | GPIO_32_768kHz; |
353 | |
354 | GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | |
355 | GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | |
356 | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | |
357 | _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON | |
358 | _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz; |
359 | |
360 | PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | |
361 | PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | |
362 | PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM; |
363 | |
364 | PWER = 0; |
365 | |
366 | PGSR = _COLLIE_GPIO_nREMOCON_ON; |
367 | |
368 | PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4; |
369 | |
370 | PCFR = PCFR_OPDE; |
371 | |
372 | GPSR |= _COLLIE_GPIO_UCB1x00_RESET; |
373 | |
374 | sa11x0_ppc_configure_mcp(); |
375 | |
376 | |
377 | platform_scoop_config = &collie_pcmcia_config; |
378 | |
379 | gpiod_add_lookup_table(table: &collie_power_gpiod_table); |
380 | gpiod_add_lookup_table(table: &collie_battery_gpiod_table); |
381 | |
382 | ret = platform_add_devices(devices, ARRAY_SIZE(devices)); |
383 | if (ret) { |
384 | printk(KERN_WARNING "collie: Unable to register LoCoMo device\n" ); |
385 | } |
386 | |
387 | sa11x0_register_lcd(inf: &collie_lcd_info); |
388 | sa11x0_register_mtd(&collie_flash_data, collie_flash_resources, |
389 | ARRAY_SIZE(collie_flash_resources)); |
390 | sa11x0_register_mcp(data: &collie_mcp_data); |
391 | |
392 | sharpsl_save_param(); |
393 | } |
394 | |
395 | static struct map_desc collie_io_desc[] __initdata = { |
396 | { /* 32M main flash (cs0) */ |
397 | .virtual = 0xe8000000, |
398 | .pfn = __phys_to_pfn(0x00000000), |
399 | .length = 0x02000000, |
400 | .type = MT_DEVICE |
401 | }, { /* 32M boot flash (cs1) */ |
402 | .virtual = 0xea000000, |
403 | .pfn = __phys_to_pfn(0x08000000), |
404 | .length = 0x02000000, |
405 | .type = MT_DEVICE |
406 | } |
407 | }; |
408 | |
409 | static void __init collie_map_io(void) |
410 | { |
411 | sa1100_map_io(); |
412 | iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc)); |
413 | |
414 | #ifdef CONFIG_SHARP_LOCOMO |
415 | sa1100_register_uart_fns(&collie_port_fns); |
416 | #endif |
417 | sa1100_register_uart(idx: 0, port: 3); |
418 | sa1100_register_uart(idx: 1, port: 1); |
419 | } |
420 | |
421 | MACHINE_START(COLLIE, "Sharp-Collie" ) |
422 | .map_io = collie_map_io, |
423 | .nr_irqs = SA1100_NR_IRQS, |
424 | .init_irq = sa1100_init_irq, |
425 | .init_time = sa1100_timer_init, |
426 | .init_machine = collie_init, |
427 | .init_late = sa11x0_init_late, |
428 | .restart = sa11x0_restart, |
429 | MACHINE_END |
430 | |