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_device.h>
25 #include <linux/mtd/mtd.h>
26 #include <linux/mtd/partitions.h>
27 #include <linux/timer.h>
28 #include <linux/gpio.h>
29 #include <linux/pda_power.h>
30
31 #include <mach/hardware.h>
32 #include <asm/mach-types.h>
33 #include <asm/irq.h>
34 #include <asm/page.h>
35 #include <asm/setup.h>
36 #include <mach/collie.h>
37
38 #include <asm/mach/arch.h>
39 #include <asm/mach/flash.h>
40 #include <asm/mach/map.h>
41 #include <asm/mach/serial_sa1100.h>
42
43 #include <asm/hardware/scoop.h>
44 #include <asm/mach/sharpsl_param.h>
45 #include <asm/hardware/locomo.h>
46 #include <mach/mcp.h>
47
48 #include "generic.h"
49
50 static struct resource collie_scoop_resources[] = {
51 [0] = {
52 .start = 0x40800000,
53 .end = 0x40800fff,
54 .flags = IORESOURCE_MEM,
55 },
56 };
57
58 static struct scoop_config collie_scoop_setup = {
59 .io_dir = COLLIE_SCOOP_IO_DIR,
60 .io_out = COLLIE_SCOOP_IO_OUT,
61 .gpio_base = COLLIE_SCOOP_GPIO_BASE,
62 };
63
64 struct platform_device colliescoop_device = {
65 .name = "sharp-scoop",
66 .id = -1,
67 .dev = {
68 .platform_data = &collie_scoop_setup,
69 },
70 .num_resources = ARRAY_SIZE(collie_scoop_resources),
71 .resource = collie_scoop_resources,
72 };
73
74 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
75 {
76 .dev = &colliescoop_device.dev,
77 .irq = COLLIE_IRQ_GPIO_CF_IRQ,
78 .cd_irq = COLLIE_IRQ_GPIO_CF_CD,
79 .cd_irq_str = "PCMCIA0 CD",
80 },
81 };
82
83 static struct scoop_pcmcia_config collie_pcmcia_config = {
84 .devs = &collie_pcmcia_scoop[0],
85 .num_devs = 1,
86 };
87
88 static struct mcp_plat_data collie_mcp_data = {
89 .mccr0 = MCCR0_ADM | MCCR0_ExtClk,
90 .sclk_rate = 9216000,
91 .gpio_base = COLLIE_TC35143_GPIO_BASE,
92 };
93
94 /*
95 * Collie AC IN
96 */
collie_power_init(struct device * dev)97 static int collie_power_init(struct device *dev)
98 {
99 int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in");
100 if (ret)
101 goto err_gpio_req;
102
103 ret = gpio_direction_input(COLLIE_GPIO_AC_IN);
104 if (ret)
105 goto err_gpio_in;
106
107 return 0;
108
109 err_gpio_in:
110 gpio_free(COLLIE_GPIO_AC_IN);
111 err_gpio_req:
112 return ret;
113 }
114
collie_power_exit(struct device * dev)115 static void collie_power_exit(struct device *dev)
116 {
117 gpio_free(COLLIE_GPIO_AC_IN);
118 }
119
collie_power_ac_online(void)120 static int collie_power_ac_online(void)
121 {
122 return gpio_get_value(COLLIE_GPIO_AC_IN) == 2;
123 }
124
125 static char *collie_ac_supplied_to[] = {
126 "main-battery",
127 "backup-battery",
128 };
129
130 static struct pda_power_pdata collie_power_data = {
131 .init = collie_power_init,
132 .is_ac_online = collie_power_ac_online,
133 .exit = collie_power_exit,
134 .supplied_to = collie_ac_supplied_to,
135 .num_supplicants = ARRAY_SIZE(collie_ac_supplied_to),
136 };
137
138 static struct resource collie_power_resource[] = {
139 {
140 .name = "ac",
141 .flags = IORESOURCE_IRQ |
142 IORESOURCE_IRQ_HIGHEDGE |
143 IORESOURCE_IRQ_LOWEDGE,
144 },
145 };
146
147 static struct platform_device collie_power_device = {
148 .name = "pda-power",
149 .id = -1,
150 .dev.platform_data = &collie_power_data,
151 .resource = collie_power_resource,
152 .num_resources = ARRAY_SIZE(collie_power_resource),
153 };
154
155 #ifdef CONFIG_SHARP_LOCOMO
156 /*
157 * low-level UART features.
158 */
159 struct platform_device collie_locomo_device;
160
collie_uart_set_mctrl(struct uart_port * port,u_int mctrl)161 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
162 {
163 if (mctrl & TIOCM_RTS)
164 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
165 else
166 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
167
168 if (mctrl & TIOCM_DTR)
169 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
170 else
171 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
172 }
173
collie_uart_get_mctrl(struct uart_port * port)174 static u_int collie_uart_get_mctrl(struct uart_port *port)
175 {
176 int ret = TIOCM_CD;
177 unsigned int r;
178
179 r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
180 if (r == -ENODEV)
181 return ret;
182 if (r & LOCOMO_GPIO_CTS)
183 ret |= TIOCM_CTS;
184 if (r & LOCOMO_GPIO_DSR)
185 ret |= TIOCM_DSR;
186
187 return ret;
188 }
189
190 static struct sa1100_port_fns collie_port_fns __initdata = {
191 .set_mctrl = collie_uart_set_mctrl,
192 .get_mctrl = collie_uart_get_mctrl,
193 };
194
collie_uart_probe(struct locomo_dev * dev)195 static int collie_uart_probe(struct locomo_dev *dev)
196 {
197 return 0;
198 }
199
collie_uart_remove(struct locomo_dev * dev)200 static int collie_uart_remove(struct locomo_dev *dev)
201 {
202 return 0;
203 }
204
205 static struct locomo_driver collie_uart_driver = {
206 .drv = {
207 .name = "collie_uart",
208 },
209 .devid = LOCOMO_DEVID_UART,
210 .probe = collie_uart_probe,
211 .remove = collie_uart_remove,
212 };
213
collie_uart_init(void)214 static int __init collie_uart_init(void)
215 {
216 return locomo_driver_register(&collie_uart_driver);
217 }
218 device_initcall(collie_uart_init);
219
220 #endif
221
222
223 static struct resource locomo_resources[] = {
224 [0] = {
225 .start = 0x40000000,
226 .end = 0x40001fff,
227 .flags = IORESOURCE_MEM,
228 },
229 [1] = {
230 .start = IRQ_GPIO25,
231 .end = IRQ_GPIO25,
232 .flags = IORESOURCE_IRQ,
233 },
234 };
235
236 static struct locomo_platform_data locomo_info = {
237 .irq_base = IRQ_BOARD_START,
238 };
239
240 struct platform_device collie_locomo_device = {
241 .name = "locomo",
242 .id = 0,
243 .dev = {
244 .platform_data = &locomo_info,
245 },
246 .num_resources = ARRAY_SIZE(locomo_resources),
247 .resource = locomo_resources,
248 };
249
250 static struct platform_device *devices[] __initdata = {
251 &collie_locomo_device,
252 &colliescoop_device,
253 &collie_power_device,
254 };
255
256 static struct mtd_partition collie_partitions[] = {
257 {
258 .name = "bootloader",
259 .offset = 0,
260 .size = 0x000C0000,
261 .mask_flags = MTD_WRITEABLE
262 }, {
263 .name = "kernel",
264 .offset = MTDPART_OFS_APPEND,
265 .size = 0x00100000,
266 }, {
267 .name = "rootfs",
268 .offset = MTDPART_OFS_APPEND,
269 .size = 0x00e20000,
270 }
271 };
272
collie_flash_init(void)273 static int collie_flash_init(void)
274 {
275 int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
276 if (rc)
277 return rc;
278
279 rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
280 if (rc)
281 gpio_free(COLLIE_GPIO_VPEN);
282
283 return rc;
284 }
285
collie_set_vpp(int vpp)286 static void collie_set_vpp(int vpp)
287 {
288 gpio_set_value(COLLIE_GPIO_VPEN, vpp);
289 }
290
collie_flash_exit(void)291 static void collie_flash_exit(void)
292 {
293 gpio_free(COLLIE_GPIO_VPEN);
294 }
295
296 static struct flash_platform_data collie_flash_data = {
297 .map_name = "cfi_probe",
298 .init = collie_flash_init,
299 .set_vpp = collie_set_vpp,
300 .exit = collie_flash_exit,
301 .parts = collie_partitions,
302 .nr_parts = ARRAY_SIZE(collie_partitions),
303 };
304
305 static struct resource collie_flash_resources[] = {
306 {
307 .start = SA1100_CS0_PHYS,
308 .end = SA1100_CS0_PHYS + SZ_32M - 1,
309 .flags = IORESOURCE_MEM,
310 }
311 };
312
collie_init(void)313 static void __init collie_init(void)
314 {
315 int ret = 0;
316
317 /* cpu initialize */
318 GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
319 GPIO_MCP_CLK | GPIO_32_768kHz;
320
321 GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
322 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
323 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
324 _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
325 _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
326
327 PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
328 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
329 PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
330
331 PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY |
332 _COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
333
334 PGSR = _COLLIE_GPIO_nREMOCON_ON;
335
336 PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
337
338 PCFR = PCFR_OPDE;
339
340 GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
341
342 collie_power_resource[0].start = gpio_to_irq(COLLIE_GPIO_AC_IN);
343 collie_power_resource[0].end = gpio_to_irq(COLLIE_GPIO_AC_IN);
344 platform_scoop_config = &collie_pcmcia_config;
345
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
351 sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
352 ARRAY_SIZE(collie_flash_resources));
353 sa11x0_register_mcp(&collie_mcp_data);
354
355 sharpsl_save_param();
356 }
357
358 static struct map_desc collie_io_desc[] __initdata = {
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 }
370 };
371
collie_map_io(void)372 static void __init collie_map_io(void)
373 {
374 sa1100_map_io();
375 iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
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);
382 }
383
384 MACHINE_START(COLLIE, "Sharp-Collie")
385 .map_io = collie_map_io,
386 .init_irq = sa1100_init_irq,
387 .timer = &sa1100_timer,
388 .init_machine = collie_init,
389 .restart = sa11x0_restart,
390 MACHINE_END
391