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.h>
31 #include <linux/pda_power.h>
32
33 #include <video/sa1100fb.h>
34
35 #include <mach/hardware.h>
36 #include <asm/mach-types.h>
37 #include <asm/page.h>
38 #include <asm/setup.h>
39 #include <mach/collie.h>
40
41 #include <asm/mach/arch.h>
42 #include <asm/mach/flash.h>
43 #include <asm/mach/map.h>
44
45 #include <asm/hardware/scoop.h>
46 #include <asm/mach/sharpsl_param.h>
47 #include <asm/hardware/locomo.h>
48 #include <linux/platform_data/mfd-mcp-sa11x0.h>
49 #include <mach/irqs.h>
50
51 #include "generic.h"
52
53 static struct resource collie_scoop_resources[] = {
54 [0] = DEFINE_RES_MEM(0x40800000, SZ_4K),
55 };
56
57 static struct scoop_config collie_scoop_setup = {
58 .io_dir = COLLIE_SCOOP_IO_DIR,
59 .io_out = COLLIE_SCOOP_IO_OUT,
60 .gpio_base = COLLIE_SCOOP_GPIO_BASE,
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
73 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
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 },
80 };
81
82 static struct scoop_pcmcia_config collie_pcmcia_config = {
83 .devs = &collie_pcmcia_scoop[0],
84 .num_devs = 1,
85 };
86
87 static struct ucb1x00_plat_data collie_ucb1x00_data = {
88 .gpio_base = COLLIE_TC35143_GPIO_BASE,
89 };
90
91 static struct mcp_plat_data collie_mcp_data = {
92 .mccr0 = MCCR0_ADM | MCCR0_ExtClk,
93 .sclk_rate = 9216000,
94 .codec_pdata = &collie_ucb1x00_data,
95 };
96
97 /*
98 * Collie AC IN
99 */
collie_power_init(struct device * dev)100 static int collie_power_init(struct device *dev)
101 {
102 int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in");
103 if (ret)
104 goto err_gpio_req;
105
106 ret = gpio_direction_input(COLLIE_GPIO_AC_IN);
107 if (ret)
108 goto err_gpio_in;
109
110 return 0;
111
112 err_gpio_in:
113 gpio_free(COLLIE_GPIO_AC_IN);
114 err_gpio_req:
115 return ret;
116 }
117
collie_power_exit(struct device * dev)118 static void collie_power_exit(struct device *dev)
119 {
120 gpio_free(COLLIE_GPIO_AC_IN);
121 }
122
collie_power_ac_online(void)123 static int collie_power_ac_online(void)
124 {
125 return gpio_get_value(COLLIE_GPIO_AC_IN) == 2;
126 }
127
128 static char *collie_ac_supplied_to[] = {
129 "main-battery",
130 "backup-battery",
131 };
132
133 static struct pda_power_pdata collie_power_data = {
134 .init = collie_power_init,
135 .is_ac_online = collie_power_ac_online,
136 .exit = collie_power_exit,
137 .supplied_to = collie_ac_supplied_to,
138 .num_supplicants = ARRAY_SIZE(collie_ac_supplied_to),
139 };
140
141 static struct resource collie_power_resource[] = {
142 {
143 .name = "ac",
144 .flags = IORESOURCE_IRQ |
145 IORESOURCE_IRQ_HIGHEDGE |
146 IORESOURCE_IRQ_LOWEDGE,
147 },
148 };
149
150 static struct platform_device collie_power_device = {
151 .name = "pda-power",
152 .id = -1,
153 .dev.platform_data = &collie_power_data,
154 .resource = collie_power_resource,
155 .num_resources = ARRAY_SIZE(collie_power_resource),
156 };
157
158 #ifdef CONFIG_SHARP_LOCOMO
159 /*
160 * low-level UART features.
161 */
162 struct platform_device collie_locomo_device;
163
collie_uart_set_mctrl(struct uart_port * port,u_int mctrl)164 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
165 {
166 if (mctrl & TIOCM_RTS)
167 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
168 else
169 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
170
171 if (mctrl & TIOCM_DTR)
172 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
173 else
174 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
175 }
176
collie_uart_get_mctrl(struct uart_port * port)177 static u_int collie_uart_get_mctrl(struct uart_port *port)
178 {
179 int ret = TIOCM_CD;
180 unsigned int r;
181
182 r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
183 if (r == -ENODEV)
184 return ret;
185 if (r & LOCOMO_GPIO_CTS)
186 ret |= TIOCM_CTS;
187 if (r & LOCOMO_GPIO_DSR)
188 ret |= TIOCM_DSR;
189
190 return ret;
191 }
192
193 static struct sa1100_port_fns collie_port_fns __initdata = {
194 .set_mctrl = collie_uart_set_mctrl,
195 .get_mctrl = collie_uart_get_mctrl,
196 };
197
collie_uart_probe(struct locomo_dev * dev)198 static int collie_uart_probe(struct locomo_dev *dev)
199 {
200 return 0;
201 }
202
collie_uart_remove(struct locomo_dev * dev)203 static int collie_uart_remove(struct locomo_dev *dev)
204 {
205 return 0;
206 }
207
208 static struct locomo_driver collie_uart_driver = {
209 .drv = {
210 .name = "collie_uart",
211 },
212 .devid = LOCOMO_DEVID_UART,
213 .probe = collie_uart_probe,
214 .remove = collie_uart_remove,
215 };
216
collie_uart_init(void)217 static int __init collie_uart_init(void)
218 {
219 return locomo_driver_register(&collie_uart_driver);
220 }
221 device_initcall(collie_uart_init);
222
223 #endif
224
225
226 static struct resource locomo_resources[] = {
227 [0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
228 [1] = DEFINE_RES_IRQ(IRQ_GPIO25),
229 };
230
231 static struct locomo_platform_data locomo_info = {
232 .irq_base = IRQ_BOARD_START,
233 };
234
235 struct platform_device collie_locomo_device = {
236 .name = "locomo",
237 .id = 0,
238 .dev = {
239 .platform_data = &locomo_info,
240 },
241 .num_resources = ARRAY_SIZE(locomo_resources),
242 .resource = locomo_resources,
243 };
244
245 static struct platform_device *devices[] __initdata = {
246 &collie_locomo_device,
247 &colliescoop_device,
248 &collie_power_device,
249 };
250
251 static struct mtd_partition collie_partitions[] = {
252 {
253 .name = "bootloader",
254 .offset = 0,
255 .size = 0x000C0000,
256 .mask_flags = MTD_WRITEABLE
257 }, {
258 .name = "kernel",
259 .offset = MTDPART_OFS_APPEND,
260 .size = 0x00100000,
261 }, {
262 .name = "rootfs",
263 .offset = MTDPART_OFS_APPEND,
264 .size = 0x00e20000,
265 }
266 };
267
collie_flash_init(void)268 static int collie_flash_init(void)
269 {
270 int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
271 if (rc)
272 return rc;
273
274 rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
275 if (rc)
276 gpio_free(COLLIE_GPIO_VPEN);
277
278 return rc;
279 }
280
collie_set_vpp(int vpp)281 static void collie_set_vpp(int vpp)
282 {
283 gpio_set_value(COLLIE_GPIO_VPEN, vpp);
284 }
285
collie_flash_exit(void)286 static void collie_flash_exit(void)
287 {
288 gpio_free(COLLIE_GPIO_VPEN);
289 }
290
291 static struct flash_platform_data collie_flash_data = {
292 .map_name = "cfi_probe",
293 .init = collie_flash_init,
294 .set_vpp = collie_set_vpp,
295 .exit = collie_flash_exit,
296 .parts = collie_partitions,
297 .nr_parts = ARRAY_SIZE(collie_partitions),
298 };
299
300 static struct resource collie_flash_resources[] = {
301 DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
302 };
303
304 static struct sa1100fb_mach_info collie_lcd_info = {
305 .pixclock = 171521, .bpp = 16,
306 .xres = 320, .yres = 240,
307
308 .hsync_len = 5, .vsync_len = 1,
309 .left_margin = 11, .upper_margin = 2,
310 .right_margin = 30, .lower_margin = 0,
311
312 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
313
314 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
315 .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
316
317 #ifdef CONFIG_BACKLIGHT_LOCOMO
318 .lcd_power = locomolcd_power
319 #endif
320 };
321
collie_init(void)322 static void __init collie_init(void)
323 {
324 int ret = 0;
325
326 /* cpu initialize */
327 GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
328 GPIO_MCP_CLK | GPIO_32_768kHz;
329
330 GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
331 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
332 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
333 _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
334 _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
335
336 PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
337 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
338 PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
339
340 PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY |
341 _COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
342
343 PGSR = _COLLIE_GPIO_nREMOCON_ON;
344
345 PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
346
347 PCFR = PCFR_OPDE;
348
349 GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
350
351 collie_power_resource[0].start = gpio_to_irq(COLLIE_GPIO_AC_IN);
352 collie_power_resource[0].end = gpio_to_irq(COLLIE_GPIO_AC_IN);
353
354 sa11x0_ppc_configure_mcp();
355
356
357 platform_scoop_config = &collie_pcmcia_config;
358
359 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
360 if (ret) {
361 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
362 }
363
364 sa11x0_register_lcd(&collie_lcd_info);
365 sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
366 ARRAY_SIZE(collie_flash_resources));
367 sa11x0_register_mcp(&collie_mcp_data);
368
369 sharpsl_save_param();
370 }
371
372 static struct map_desc collie_io_desc[] __initdata = {
373 { /* 32M main flash (cs0) */
374 .virtual = 0xe8000000,
375 .pfn = __phys_to_pfn(0x00000000),
376 .length = 0x02000000,
377 .type = MT_DEVICE
378 }, { /* 32M boot flash (cs1) */
379 .virtual = 0xea000000,
380 .pfn = __phys_to_pfn(0x08000000),
381 .length = 0x02000000,
382 .type = MT_DEVICE
383 }
384 };
385
collie_map_io(void)386 static void __init collie_map_io(void)
387 {
388 sa1100_map_io();
389 iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
390
391 #ifdef CONFIG_SHARP_LOCOMO
392 sa1100_register_uart_fns(&collie_port_fns);
393 #endif
394 sa1100_register_uart(0, 3);
395 sa1100_register_uart(1, 1);
396 }
397
398 MACHINE_START(COLLIE, "Sharp-Collie")
399 .map_io = collie_map_io,
400 .nr_irqs = SA1100_NR_IRQS,
401 .init_irq = sa1100_init_irq,
402 .init_time = sa1100_timer_init,
403 .init_machine = collie_init,
404 .init_late = sa11x0_init_late,
405 .restart = sa11x0_restart,
406 MACHINE_END
407