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
56static struct resource collie_scoop_resources[] = {
57 [0] = DEFINE_RES_MEM(0x40800000, SZ_4K),
58};
59
60static 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
66struct 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
76static 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
85static struct scoop_pcmcia_config collie_pcmcia_config = {
86 .devs = &collie_pcmcia_scoop[0],
87 .num_devs = 1,
88};
89
90static struct ucb1x00_plat_data collie_ucb1x00_data = {
91 .gpio_base = COLLIE_TC35143_GPIO_BASE,
92};
93
94static 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 */
101static 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 */
123static 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
132static char *collie_ac_supplied_to[] = {
133 "main-battery",
134 "backup-battery",
135};
136
137static 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
144static 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 */
154struct platform_device collie_locomo_device;
155
156static 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
169static 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
185static struct sa1100_port_fns collie_port_fns __initdata = {
186 .set_mctrl = collie_uart_set_mctrl,
187 .get_mctrl = collie_uart_get_mctrl,
188};
189
190static int collie_uart_probe(struct locomo_dev *dev)
191{
192 return 0;
193}
194
195static 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
203static int __init collie_uart_init(void)
204{
205 return locomo_driver_register(&collie_uart_driver);
206}
207device_initcall(collie_uart_init);
208
209#endif
210
211
212static struct resource locomo_resources[] = {
213 [0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
214 [1] = DEFINE_RES_IRQ(IRQ_GPIO25),
215};
216
217static struct locomo_platform_data locomo_info = {
218 .irq_base = IRQ_BOARD_START,
219};
220
221struct 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
231static 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
250static struct gpio_keys_platform_data collie_gpio_keys_data = {
251 .buttons = collie_gpio_keys,
252 .nbuttons = ARRAY_SIZE(collie_gpio_keys),
253};
254
255static 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
263static struct platform_device *devices[] __initdata = {
264 &collie_locomo_device,
265 &colliescoop_device,
266 &collie_power_device,
267 &collie_gpio_keys_device,
268};
269
270static 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
292static 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
305static void collie_set_vpp(int vpp)
306{
307 gpio_set_value(gpio: COLLIE_GPIO_VPEN, value: vpp);
308}
309
310static void collie_flash_exit(void)
311{
312 gpio_free(gpio: COLLIE_GPIO_VPEN);
313}
314
315static 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
324static struct resource collie_flash_resources[] = {
325 DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
326};
327
328static 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
346static 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
395static 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
409static 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
421MACHINE_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,
429MACHINE_END
430

source code of linux/arch/arm/mach-sa1100/collie.c