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1da177e4 LT |
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: | |
a2531293 | 14 | * 2006 Pavel Machek <pavel@ucw.cz> |
50c37e21 | 15 | * 03-06-2004 John Lenz <lenz@cs.wisc.edu> |
1da177e4 LT |
16 | * 06-04-2002 Chris Larson <kergoth@digitalnemesis.net> |
17 | * 04-16-2001 Lineo Japan,Inc. ... | |
18 | */ | |
19 | ||
1da177e4 LT |
20 | #include <linux/init.h> |
21 | #include <linux/kernel.h> | |
22 | #include <linux/tty.h> | |
23 | #include <linux/delay.h> | |
d052d1be | 24 | #include <linux/platform_device.h> |
1da177e4 LT |
25 | #include <linux/mtd/mtd.h> |
26 | #include <linux/mtd/partitions.h> | |
27 | #include <linux/timer.h> | |
224be092 | 28 | #include <linux/gpio.h> |
9823b2d0 | 29 | #include <linux/pda_power.h> |
1da177e4 | 30 | |
a09e64fb | 31 | #include <mach/hardware.h> |
1da177e4 LT |
32 | #include <asm/mach-types.h> |
33 | #include <asm/irq.h> | |
34 | #include <asm/setup.h> | |
a09e64fb | 35 | #include <mach/collie.h> |
1da177e4 LT |
36 | |
37 | #include <asm/mach/arch.h> | |
38 | #include <asm/mach/flash.h> | |
39 | #include <asm/mach/map.h> | |
40 | #include <asm/mach/serial_sa1100.h> | |
41 | ||
42 | #include <asm/hardware/scoop.h> | |
43 | #include <asm/mach/sharpsl_param.h> | |
44 | #include <asm/hardware/locomo.h> | |
a09e64fb | 45 | #include <mach/mcp.h> |
1da177e4 LT |
46 | |
47 | #include "generic.h" | |
48 | ||
49 | static struct resource collie_scoop_resources[] = { | |
50 | [0] = { | |
51 | .start = 0x40800000, | |
52 | .end = 0x40800fff, | |
53 | .flags = IORESOURCE_MEM, | |
54 | }, | |
55 | }; | |
56 | ||
57 | static struct scoop_config collie_scoop_setup = { | |
58 | .io_dir = COLLIE_SCOOP_IO_DIR, | |
59 | .io_out = COLLIE_SCOOP_IO_OUT, | |
f151ccf7 | 60 | .gpio_base = COLLIE_SCOOP_GPIO_BASE, |
1da177e4 LT |
61 | }; |
62 | ||
63 | struct platform_device colliescoop_device = { | |
64 | .name = "sharp-scoop", | |
65 | .id = -1, | |
66 | .dev = { | |
67 | .platform_data = &collie_scoop_setup, | |
68 | }, | |
69 | .num_resources = ARRAY_SIZE(collie_scoop_resources), | |
70 | .resource = collie_scoop_resources, | |
71 | }; | |
72 | ||
44575b2f | 73 | static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = { |
93982535 KE |
74 | { |
75 | .dev = &colliescoop_device.dev, | |
76 | .irq = COLLIE_IRQ_GPIO_CF_IRQ, | |
77 | .cd_irq = COLLIE_IRQ_GPIO_CF_CD, | |
78 | .cd_irq_str = "PCMCIA0 CD", | |
79 | }, | |
44575b2f PM |
80 | }; |
81 | ||
82 | static struct scoop_pcmcia_config collie_pcmcia_config = { | |
93982535 KE |
83 | .devs = &collie_pcmcia_scoop[0], |
84 | .num_devs = 1, | |
44575b2f PM |
85 | }; |
86 | ||
44575b2f | 87 | static struct mcp_plat_data collie_mcp_data = { |
93982535 KE |
88 | .mccr0 = MCCR0_ADM | MCCR0_ExtClk, |
89 | .sclk_rate = 9216000, | |
f7177c84 | 90 | .gpio_base = COLLIE_TC35143_GPIO_BASE, |
44575b2f PM |
91 | }; |
92 | ||
9823b2d0 TK |
93 | /* |
94 | * Collie AC IN | |
95 | */ | |
96 | static int collie_power_init(struct device *dev) | |
97 | { | |
98 | int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in"); | |
99 | if (ret) | |
100 | goto err_gpio_req; | |
101 | ||
102 | ret = gpio_direction_input(COLLIE_GPIO_AC_IN); | |
103 | if (ret) | |
104 | goto err_gpio_in; | |
105 | ||
106 | return 0; | |
107 | ||
108 | err_gpio_in: | |
109 | gpio_free(COLLIE_GPIO_AC_IN); | |
110 | err_gpio_req: | |
111 | return ret; | |
112 | } | |
113 | ||
114 | static void collie_power_exit(struct device *dev) | |
115 | { | |
116 | gpio_free(COLLIE_GPIO_AC_IN); | |
117 | } | |
118 | ||
119 | static int collie_power_ac_online(void) | |
120 | { | |
121 | return gpio_get_value(COLLIE_GPIO_AC_IN) == 2; | |
122 | } | |
123 | ||
124 | static char *collie_ac_supplied_to[] = { | |
125 | "main-battery", | |
126 | "backup-battery", | |
127 | }; | |
128 | ||
129 | static struct pda_power_pdata collie_power_data = { | |
130 | .init = collie_power_init, | |
131 | .is_ac_online = collie_power_ac_online, | |
132 | .exit = collie_power_exit, | |
133 | .supplied_to = collie_ac_supplied_to, | |
134 | .num_supplicants = ARRAY_SIZE(collie_ac_supplied_to), | |
135 | }; | |
136 | ||
137 | static struct resource collie_power_resource[] = { | |
138 | { | |
139 | .name = "ac", | |
140 | .start = gpio_to_irq(COLLIE_GPIO_AC_IN), | |
141 | .end = gpio_to_irq(COLLIE_GPIO_AC_IN), | |
142 | .flags = IORESOURCE_IRQ | | |
143 | IORESOURCE_IRQ_HIGHEDGE | | |
144 | IORESOURCE_IRQ_LOWEDGE, | |
145 | }, | |
146 | }; | |
147 | ||
148 | static struct platform_device collie_power_device = { | |
149 | .name = "pda-power", | |
150 | .id = -1, | |
151 | .dev.platform_data = &collie_power_data, | |
152 | .resource = collie_power_resource, | |
153 | .num_resources = ARRAY_SIZE(collie_power_resource), | |
44575b2f PM |
154 | }; |
155 | ||
50c37e21 PM |
156 | #ifdef CONFIG_SHARP_LOCOMO |
157 | /* | |
158 | * low-level UART features. | |
159 | */ | |
8d48427e | 160 | struct platform_device collie_locomo_device; |
50c37e21 PM |
161 | |
162 | static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl) | |
163 | { | |
93982535 | 164 | if (mctrl & TIOCM_RTS) |
8d48427e | 165 | locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0); |
93982535 | 166 | else |
8d48427e | 167 | locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1); |
50c37e21 | 168 | |
93982535 | 169 | if (mctrl & TIOCM_DTR) |
8d48427e | 170 | locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0); |
93982535 | 171 | else |
8d48427e | 172 | locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1); |
50c37e21 PM |
173 | } |
174 | ||
175 | static u_int collie_uart_get_mctrl(struct uart_port *port) | |
176 | { | |
177 | int ret = TIOCM_CD; | |
178 | unsigned int r; | |
50c37e21 | 179 | |
8d48427e RP |
180 | r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR); |
181 | if (r == -ENODEV) | |
182 | return ret; | |
50c37e21 PM |
183 | if (r & LOCOMO_GPIO_CTS) |
184 | ret |= TIOCM_CTS; | |
185 | if (r & LOCOMO_GPIO_DSR) | |
186 | ret |= TIOCM_DSR; | |
187 | ||
188 | return ret; | |
189 | } | |
44575b2f PM |
190 | |
191 | static struct sa1100_port_fns collie_port_fns __initdata = { | |
192 | .set_mctrl = collie_uart_set_mctrl, | |
193 | .get_mctrl = collie_uart_get_mctrl, | |
194 | }; | |
195 | ||
50c37e21 PM |
196 | static int collie_uart_probe(struct locomo_dev *dev) |
197 | { | |
50c37e21 PM |
198 | return 0; |
199 | } | |
200 | ||
201 | static int collie_uart_remove(struct locomo_dev *dev) | |
202 | { | |
50c37e21 PM |
203 | return 0; |
204 | } | |
205 | ||
206 | static struct locomo_driver collie_uart_driver = { | |
207 | .drv = { | |
208 | .name = "collie_uart", | |
209 | }, | |
210 | .devid = LOCOMO_DEVID_UART, | |
211 | .probe = collie_uart_probe, | |
212 | .remove = collie_uart_remove, | |
213 | }; | |
214 | ||
e63cedb6 RK |
215 | static int __init collie_uart_init(void) |
216 | { | |
50c37e21 PM |
217 | return locomo_driver_register(&collie_uart_driver); |
218 | } | |
219 | device_initcall(collie_uart_init); | |
220 | ||
221 | #endif | |
222 | ||
1da177e4 LT |
223 | |
224 | static struct resource locomo_resources[] = { | |
225 | [0] = { | |
226 | .start = 0x40000000, | |
227 | .end = 0x40001fff, | |
228 | .flags = IORESOURCE_MEM, | |
229 | }, | |
230 | [1] = { | |
231 | .start = IRQ_GPIO25, | |
232 | .end = IRQ_GPIO25, | |
233 | .flags = IORESOURCE_IRQ, | |
234 | }, | |
235 | }; | |
236 | ||
ac609d26 EM |
237 | static struct locomo_platform_data locomo_info = { |
238 | .irq_base = IRQ_BOARD_START, | |
239 | }; | |
240 | ||
8d48427e | 241 | struct platform_device collie_locomo_device = { |
1da177e4 LT |
242 | .name = "locomo", |
243 | .id = 0, | |
34cd2d38 DES |
244 | .dev = { |
245 | .platform_data = &locomo_info, | |
246 | }, | |
1da177e4 LT |
247 | .num_resources = ARRAY_SIZE(locomo_resources), |
248 | .resource = locomo_resources, | |
249 | }; | |
250 | ||
251 | static struct platform_device *devices[] __initdata = { | |
8d48427e | 252 | &collie_locomo_device, |
1da177e4 | 253 | &colliescoop_device, |
9823b2d0 | 254 | &collie_power_device, |
1da177e4 LT |
255 | }; |
256 | ||
257 | static struct mtd_partition collie_partitions[] = { | |
258 | { | |
259 | .name = "bootloader", | |
260 | .offset = 0, | |
261 | .size = 0x000C0000, | |
262 | .mask_flags = MTD_WRITEABLE | |
263 | }, { | |
264 | .name = "kernel", | |
265 | .offset = MTDPART_OFS_APPEND, | |
266 | .size = 0x00100000, | |
267 | }, { | |
268 | .name = "rootfs", | |
269 | .offset = MTDPART_OFS_APPEND, | |
270 | .size = 0x00e20000, | |
271 | } | |
272 | }; | |
273 | ||
224be092 DES |
274 | static int collie_flash_init(void) |
275 | { | |
e63cedb6 | 276 | int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable"); |
224be092 DES |
277 | if (rc) |
278 | return rc; | |
279 | ||
280 | rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1); | |
281 | if (rc) | |
282 | gpio_free(COLLIE_GPIO_VPEN); | |
283 | ||
284 | return rc; | |
285 | } | |
286 | ||
1da177e4 LT |
287 | static void collie_set_vpp(int vpp) |
288 | { | |
224be092 | 289 | gpio_set_value(COLLIE_GPIO_VPEN, vpp); |
1da177e4 LT |
290 | } |
291 | ||
224be092 DES |
292 | static void collie_flash_exit(void) |
293 | { | |
294 | gpio_free(COLLIE_GPIO_VPEN); | |
295 | } | |
e63cedb6 | 296 | |
1da177e4 LT |
297 | static struct flash_platform_data collie_flash_data = { |
298 | .map_name = "cfi_probe", | |
224be092 | 299 | .init = collie_flash_init, |
1da177e4 | 300 | .set_vpp = collie_set_vpp, |
224be092 | 301 | .exit = collie_flash_exit, |
1da177e4 LT |
302 | .parts = collie_partitions, |
303 | .nr_parts = ARRAY_SIZE(collie_partitions), | |
304 | }; | |
305 | ||
306 | static struct resource collie_flash_resources[] = { | |
307 | { | |
308 | .start = SA1100_CS0_PHYS, | |
309 | .end = SA1100_CS0_PHYS + SZ_32M - 1, | |
310 | .flags = IORESOURCE_MEM, | |
311 | } | |
312 | }; | |
313 | ||
314 | static void __init collie_init(void) | |
315 | { | |
316 | int ret = 0; | |
317 | ||
318 | /* cpu initialize */ | |
864d0ec9 TK |
319 | GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | |
320 | GPIO_MCP_CLK | GPIO_32_768kHz; | |
321 | ||
322 | GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | | |
323 | GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | | |
324 | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | | |
1d0ad843 TK |
325 | _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON | |
326 | _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz; | |
864d0ec9 TK |
327 | |
328 | PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | | |
329 | PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | | |
330 | PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM; | |
331 | ||
1d0ad843 TK |
332 | PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY | |
333 | _COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC; | |
864d0ec9 | 334 | |
1d0ad843 | 335 | PGSR = _COLLIE_GPIO_nREMOCON_ON; |
864d0ec9 TK |
336 | |
337 | PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4; | |
338 | ||
339 | PCFR = PCFR_OPDE; | |
340 | ||
1d0ad843 TK |
341 | GPSR |= _COLLIE_GPIO_UCB1x00_RESET; |
342 | ||
1da177e4 | 343 | |
44575b2f PM |
344 | platform_scoop_config = &collie_pcmcia_config; |
345 | ||
1da177e4 LT |
346 | ret = platform_add_devices(devices, ARRAY_SIZE(devices)); |
347 | if (ret) { | |
348 | printk(KERN_WARNING "collie: Unable to register LoCoMo device\n"); | |
349 | } | |
350 | ||
7a5b4e16 RK |
351 | sa11x0_register_mtd(&collie_flash_data, collie_flash_resources, |
352 | ARRAY_SIZE(collie_flash_resources)); | |
353 | sa11x0_register_mcp(&collie_mcp_data); | |
1da177e4 LT |
354 | |
355 | sharpsl_save_param(); | |
356 | } | |
357 | ||
358 | static struct map_desc collie_io_desc[] __initdata = { | |
92519d82 DS |
359 | { /* 32M main flash (cs0) */ |
360 | .virtual = 0xe8000000, | |
361 | .pfn = __phys_to_pfn(0x00000000), | |
362 | .length = 0x02000000, | |
363 | .type = MT_DEVICE | |
364 | }, { /* 32M boot flash (cs1) */ | |
365 | .virtual = 0xea000000, | |
366 | .pfn = __phys_to_pfn(0x08000000), | |
367 | .length = 0x02000000, | |
368 | .type = MT_DEVICE | |
369 | } | |
1da177e4 LT |
370 | }; |
371 | ||
372 | static void __init collie_map_io(void) | |
373 | { | |
374 | sa1100_map_io(); | |
375 | iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc)); | |
50c37e21 PM |
376 | |
377 | #ifdef CONFIG_SHARP_LOCOMO | |
378 | sa1100_register_uart_fns(&collie_port_fns); | |
379 | #endif | |
380 | sa1100_register_uart(0, 3); | |
381 | sa1100_register_uart(1, 1); | |
1da177e4 LT |
382 | } |
383 | ||
384 | MACHINE_START(COLLIE, "Sharp-Collie") | |
e9dea0c6 RK |
385 | .map_io = collie_map_io, |
386 | .init_irq = sa1100_init_irq, | |
1da177e4 LT |
387 | .timer = &sa1100_timer, |
388 | .init_machine = collie_init, | |
389 | MACHINE_END |