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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-sa1100/collie.c

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  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/power/gpio-charger.h>
 34 
 35 #include <video/sa1100fb.h>
 36 
 37 #include <mach/hardware.h>
 38 #include <asm/mach-types.h>
 39 #include <asm/page.h>
 40 #include <asm/setup.h>
 41 #include <mach/collie.h>
 42 
 43 #include <asm/mach/arch.h>
 44 #include <asm/mach/flash.h>
 45 #include <asm/mach/map.h>
 46 #include <linux/platform_data/irda-sa11x0.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 static int collie_ir_startup(struct device *dev)
101 {
102         int rc = gpio_request(COLLIE_GPIO_IR_ON, "IrDA");
103         if (rc)
104                 return rc;
105         rc = gpio_direction_output(COLLIE_GPIO_IR_ON, 1);
106 
107         if (!rc)
108                 return 0;
109 
110         gpio_free(COLLIE_GPIO_IR_ON);
111         return rc;
112 }
113 
114 static void collie_ir_shutdown(struct device *dev)
115 {
116         gpio_free(COLLIE_GPIO_IR_ON);
117 }
118 
119 static int collie_ir_set_power(struct device *dev, unsigned int state)
120 {
121         gpio_set_value(COLLIE_GPIO_IR_ON, !state);
122         return 0;
123 }
124 
125 static struct irda_platform_data collie_ir_data = {
126         .startup = collie_ir_startup,
127         .shutdown = collie_ir_shutdown,
128         .set_power = collie_ir_set_power,
129 };
130 
131 /*
132  * Collie AC IN
133  */
134 static char *collie_ac_supplied_to[] = {
135         "main-battery",
136         "backup-battery",
137 };
138 
139 
140 static struct gpio_charger_platform_data collie_power_data = {
141         .name                   = "charger",
142         .type                   = POWER_SUPPLY_TYPE_MAINS,
143         .gpio                   = COLLIE_GPIO_AC_IN,
144         .supplied_to            = collie_ac_supplied_to,
145         .num_supplicants        = ARRAY_SIZE(collie_ac_supplied_to),
146 };
147 
148 static struct platform_device collie_power_device = {
149         .name                   = "gpio-charger",
150         .id                     = -1,
151         .dev.platform_data      = &collie_power_data,
152 };
153 
154 #ifdef CONFIG_SHARP_LOCOMO
155 /*
156  * low-level UART features.
157  */
158 struct platform_device collie_locomo_device;
159 
160 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
161 {
162         if (mctrl & TIOCM_RTS)
163                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
164         else
165                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
166 
167         if (mctrl & TIOCM_DTR)
168                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
169         else
170                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
171 }
172 
173 static u_int collie_uart_get_mctrl(struct uart_port *port)
174 {
175         int ret = TIOCM_CD;
176         unsigned int r;
177 
178         r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
179         if (r == -ENODEV)
180                 return ret;
181         if (r & LOCOMO_GPIO_CTS)
182                 ret |= TIOCM_CTS;
183         if (r & LOCOMO_GPIO_DSR)
184                 ret |= TIOCM_DSR;
185 
186         return ret;
187 }
188 
189 static struct sa1100_port_fns collie_port_fns __initdata = {
190         .set_mctrl      = collie_uart_set_mctrl,
191         .get_mctrl      = collie_uart_get_mctrl,
192 };
193 
194 static int collie_uart_probe(struct locomo_dev *dev)
195 {
196         return 0;
197 }
198 
199 static int collie_uart_remove(struct locomo_dev *dev)
200 {
201         return 0;
202 }
203 
204 static struct locomo_driver collie_uart_driver = {
205         .drv = {
206                 .name = "collie_uart",
207         },
208         .devid  = LOCOMO_DEVID_UART,
209         .probe  = collie_uart_probe,
210         .remove = collie_uart_remove,
211 };
212 
213 static int __init collie_uart_init(void)
214 {
215         return locomo_driver_register(&collie_uart_driver);
216 }
217 device_initcall(collie_uart_init);
218 
219 #endif
220 
221 
222 static struct resource locomo_resources[] = {
223         [0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
224         [1] = DEFINE_RES_IRQ(IRQ_GPIO25),
225 };
226 
227 static struct locomo_platform_data locomo_info = {
228         .irq_base       = IRQ_BOARD_START,
229 };
230 
231 struct platform_device collie_locomo_device = {
232         .name           = "locomo",
233         .id             = 0,
234         .dev            = {
235                 .platform_data  = &locomo_info,
236         },
237         .num_resources  = ARRAY_SIZE(locomo_resources),
238         .resource       = locomo_resources,
239 };
240 
241 static struct gpio_keys_button collie_gpio_keys[] = {
242         {
243                 .type   = EV_PWR,
244                 .code   = KEY_RESERVED,
245                 .gpio   = COLLIE_GPIO_ON_KEY,
246                 .desc   = "On key",
247                 .wakeup = 1,
248                 .active_low = 1,
249         },
250         {
251                 .type   = EV_PWR,
252                 .code   = KEY_WAKEUP,
253                 .gpio   = COLLIE_GPIO_WAKEUP,
254                 .desc   = "Sync",
255                 .wakeup = 1,
256                 .active_low = 1,
257         },
258 };
259 
260 static struct gpio_keys_platform_data collie_gpio_keys_data = {
261         .buttons        = collie_gpio_keys,
262         .nbuttons       = ARRAY_SIZE(collie_gpio_keys),
263 };
264 
265 static struct platform_device collie_gpio_keys_device = {
266         .name   = "gpio-keys",
267         .id     = -1,
268         .dev    = {
269                 .platform_data = &collie_gpio_keys_data,
270         },
271 };
272 
273 static struct platform_device *devices[] __initdata = {
274         &collie_locomo_device,
275         &colliescoop_device,
276         &collie_power_device,
277         &collie_gpio_keys_device,
278 };
279 
280 static struct mtd_partition collie_partitions[] = {
281         {
282                 .name           = "bootloader",
283                 .offset         = 0,
284                 .size           = 0x000C0000,
285                 .mask_flags     = MTD_WRITEABLE
286         }, {
287                 .name           = "kernel",
288                 .offset         = MTDPART_OFS_APPEND,
289                 .size           = 0x00100000,
290         }, {
291                 .name           = "rootfs",
292                 .offset         = MTDPART_OFS_APPEND,
293                 .size           = 0x00e20000,
294         }, {
295                 .name           = "bootblock",
296                 .offset         = MTDPART_OFS_APPEND,
297                 .size           = 0x00020000,
298                 .mask_flags     = MTD_WRITEABLE
299         }
300 };
301 
302 static int collie_flash_init(void)
303 {
304         int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
305         if (rc)
306                 return rc;
307 
308         rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
309         if (rc)
310                 gpio_free(COLLIE_GPIO_VPEN);
311 
312         return rc;
313 }
314 
315 static void collie_set_vpp(int vpp)
316 {
317         gpio_set_value(COLLIE_GPIO_VPEN, vpp);
318 }
319 
320 static void collie_flash_exit(void)
321 {
322         gpio_free(COLLIE_GPIO_VPEN);
323 }
324 
325 static struct flash_platform_data collie_flash_data = {
326         .map_name       = "cfi_probe",
327         .init           = collie_flash_init,
328         .set_vpp        = collie_set_vpp,
329         .exit           = collie_flash_exit,
330         .parts          = collie_partitions,
331         .nr_parts       = ARRAY_SIZE(collie_partitions),
332 };
333 
334 static struct resource collie_flash_resources[] = {
335         DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
336 };
337 
338 static struct sa1100fb_mach_info collie_lcd_info = {
339         .pixclock       = 171521,       .bpp            = 16,
340         .xres           = 320,          .yres           = 240,
341 
342         .hsync_len      = 5,            .vsync_len      = 1,
343         .left_margin    = 11,           .upper_margin   = 2,
344         .right_margin   = 30,           .lower_margin   = 0,
345 
346         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
347 
348         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
349         .lccr3          = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
350 
351 #ifdef CONFIG_BACKLIGHT_LOCOMO
352         .lcd_power      = locomolcd_power
353 #endif
354 };
355 
356 static void __init collie_init(void)
357 {
358         int ret = 0;
359 
360         /* cpu initialize */
361         GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
362                 GPIO_MCP_CLK | GPIO_32_768kHz;
363 
364         GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
365                 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
366                 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
367                 _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
368                 _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
369 
370         PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
371                 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
372                 PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
373 
374         PWER = 0;
375 
376         PGSR = _COLLIE_GPIO_nREMOCON_ON;
377 
378         PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
379 
380         PCFR = PCFR_OPDE;
381 
382         GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
383 
384         sa11x0_ppc_configure_mcp();
385 
386 
387         platform_scoop_config = &collie_pcmcia_config;
388 
389         ret = platform_add_devices(devices, ARRAY_SIZE(devices));
390         if (ret) {
391                 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
392         }
393 
394         sa11x0_register_lcd(&collie_lcd_info);
395         sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
396                             ARRAY_SIZE(collie_flash_resources));
397         sa11x0_register_mcp(&collie_mcp_data);
398         sa11x0_register_irda(&collie_ir_data);
399 
400         sharpsl_save_param();
401 }
402 
403 static struct map_desc collie_io_desc[] __initdata = {
404         {       /* 32M main flash (cs0) */
405                 .virtual        = 0xe8000000,
406                 .pfn            = __phys_to_pfn(0x00000000),
407                 .length         = 0x02000000,
408                 .type           = MT_DEVICE
409         }, {    /* 32M boot flash (cs1) */
410                 .virtual        = 0xea000000,
411                 .pfn            = __phys_to_pfn(0x08000000),
412                 .length         = 0x02000000,
413                 .type           = MT_DEVICE
414         }
415 };
416 
417 static void __init collie_map_io(void)
418 {
419         sa1100_map_io();
420         iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
421 
422 #ifdef CONFIG_SHARP_LOCOMO
423         sa1100_register_uart_fns(&collie_port_fns);
424 #endif
425         sa1100_register_uart(0, 3);
426         sa1100_register_uart(1, 1);
427 }
428 
429 MACHINE_START(COLLIE, "Sharp-Collie")
430         .map_io         = collie_map_io,
431         .nr_irqs        = SA1100_NR_IRQS,
432         .init_irq       = sa1100_init_irq,
433         .init_time      = sa1100_timer_init,
434         .init_machine   = collie_init,
435         .init_late      = sa11x0_init_late,
436         .restart        = sa11x0_restart,
437 MACHINE_END
438 

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