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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-clps711x/board-p720t.c

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  1 /*
  2  *  linux/arch/arm/mach-clps711x/p720t.c
  3  *
  4  *  Copyright (C) 2000-2001 Deep Blue Solutions Ltd
  5  *
  6  * This program is free software; you can redistribute it and/or modify
  7  * it under the terms of the GNU General Public License as published by
  8  * the Free Software Foundation; either version 2 of the License, or
  9  * (at your option) any later version.
 10  *
 11  * This program is distributed in the hope that it will be useful,
 12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14  * GNU General Public License for more details.
 15  *
 16  * You should have received a copy of the GNU General Public License
 17  * along with this program; if not, write to the Free Software
 18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 19  */
 20 #include <linux/kernel.h>
 21 #include <linux/init.h>
 22 #include <linux/types.h>
 23 #include <linux/string.h>
 24 #include <linux/mm.h>
 25 #include <linux/io.h>
 26 #include <linux/gpio.h>
 27 #include <linux/slab.h>
 28 #include <linux/leds.h>
 29 #include <linux/sizes.h>
 30 #include <linux/backlight.h>
 31 #include <linux/gpio/driver.h>
 32 #include <linux/platform_device.h>
 33 #include <linux/mtd/partitions.h>
 34 #include <linux/mtd/nand-gpio.h>
 35 
 36 #include <mach/hardware.h>
 37 #include <asm/pgtable.h>
 38 #include <asm/page.h>
 39 #include <asm/setup.h>
 40 #include <asm/mach-types.h>
 41 #include <asm/mach/arch.h>
 42 #include <asm/mach/map.h>
 43 
 44 #include <video/platform_lcd.h>
 45 
 46 #include "common.h"
 47 #include "devices.h"
 48 
 49 #define P720T_USERLED           CLPS711X_GPIO(3, 0)
 50 #define P720T_NAND_CLE          CLPS711X_GPIO(4, 0)
 51 #define P720T_NAND_ALE          CLPS711X_GPIO(4, 1)
 52 #define P720T_NAND_NCE          CLPS711X_GPIO(4, 2)
 53 
 54 #define P720T_NAND_BASE         (CLPS711X_SDRAM1_BASE)
 55 
 56 #define P720T_MMGPIO_BASE       (CLPS711X_NR_GPIO)
 57 
 58 #define SYSPLD_PHYS_BASE        IOMEM(CS1_PHYS_BASE)
 59 
 60 #define PLD_INT                 (SYSPLD_PHYS_BASE + 0x000000)
 61 #define PLD_INT_MMGPIO_BASE     (P720T_MMGPIO_BASE + 0)
 62 #define PLD_INT_PENIRQ          (PLD_INT_MMGPIO_BASE + 5)
 63 #define PLD_INT_UCB_IRQ         (PLD_INT_MMGPIO_BASE + 1)
 64 #define PLD_INT_KBD_ATN         (PLD_INT_MMGPIO_BASE + 0) /* EINT1 */
 65 
 66 #define PLD_PWR                 (SYSPLD_PHYS_BASE + 0x000004)
 67 #define PLD_PWR_MMGPIO_BASE     (P720T_MMGPIO_BASE + 8)
 68 #define PLD_PWR_EXT             (PLD_PWR_MMGPIO_BASE + 5)
 69 #define PLD_PWR_MODE            (PLD_PWR_MMGPIO_BASE + 4) /* 1 = PWM, 0 = PFM */
 70 #define PLD_S4_ON               (PLD_PWR_MMGPIO_BASE + 3) /* LCD bias voltage enable */
 71 #define PLD_S3_ON               (PLD_PWR_MMGPIO_BASE + 2) /* LCD backlight enable */
 72 #define PLD_S2_ON               (PLD_PWR_MMGPIO_BASE + 1) /* LCD 3V3 supply enable */
 73 #define PLD_S1_ON               (PLD_PWR_MMGPIO_BASE + 0) /* LCD 3V supply enable */
 74 
 75 #define PLD_KBD                 (SYSPLD_PHYS_BASE + 0x000008)
 76 #define PLD_KBD_MMGPIO_BASE     (P720T_MMGPIO_BASE + 16)
 77 #define PLD_KBD_WAKE            (PLD_KBD_MMGPIO_BASE + 1)
 78 #define PLD_KBD_EN              (PLD_KBD_MMGPIO_BASE + 0)
 79 
 80 #define PLD_SPI                 (SYSPLD_PHYS_BASE + 0x00000c)
 81 #define PLD_SPI_MMGPIO_BASE     (P720T_MMGPIO_BASE + 24)
 82 #define PLD_SPI_EN              (PLD_SPI_MMGPIO_BASE + 0)
 83 
 84 #define PLD_IO                  (SYSPLD_PHYS_BASE + 0x000010)
 85 #define PLD_IO_MMGPIO_BASE      (P720T_MMGPIO_BASE + 32)
 86 #define PLD_IO_BOOTSEL          (PLD_IO_MMGPIO_BASE + 6) /* Boot sel switch */
 87 #define PLD_IO_USER             (PLD_IO_MMGPIO_BASE + 5) /* User defined switch */
 88 #define PLD_IO_LED3             (PLD_IO_MMGPIO_BASE + 4)
 89 #define PLD_IO_LED2             (PLD_IO_MMGPIO_BASE + 3)
 90 #define PLD_IO_LED1             (PLD_IO_MMGPIO_BASE + 2)
 91 #define PLD_IO_LED0             (PLD_IO_MMGPIO_BASE + 1)
 92 #define PLD_IO_LEDEN            (PLD_IO_MMGPIO_BASE + 0)
 93 
 94 #define PLD_IRDA                (SYSPLD_PHYS_BASE + 0x000014)
 95 #define PLD_IRDA_MMGPIO_BASE    (P720T_MMGPIO_BASE + 40)
 96 #define PLD_IRDA_EN             (PLD_IRDA_MMGPIO_BASE + 0)
 97 
 98 #define PLD_COM2                (SYSPLD_PHYS_BASE + 0x000018)
 99 #define PLD_COM2_MMGPIO_BASE    (P720T_MMGPIO_BASE + 48)
100 #define PLD_COM2_EN             (PLD_COM2_MMGPIO_BASE + 0)
101 
102 #define PLD_COM1                (SYSPLD_PHYS_BASE + 0x00001c)
103 #define PLD_COM1_MMGPIO_BASE    (P720T_MMGPIO_BASE + 56)
104 #define PLD_COM1_EN             (PLD_COM1_MMGPIO_BASE + 0)
105 
106 #define PLD_AUD                 (SYSPLD_PHYS_BASE + 0x000020)
107 #define PLD_AUD_MMGPIO_BASE     (P720T_MMGPIO_BASE + 64)
108 #define PLD_AUD_DIV1            (PLD_AUD_MMGPIO_BASE + 6)
109 #define PLD_AUD_DIV0            (PLD_AUD_MMGPIO_BASE + 5)
110 #define PLD_AUD_CLK_SEL1        (PLD_AUD_MMGPIO_BASE + 4)
111 #define PLD_AUD_CLK_SEL0        (PLD_AUD_MMGPIO_BASE + 3)
112 #define PLD_AUD_MIC_PWR         (PLD_AUD_MMGPIO_BASE + 2)
113 #define PLD_AUD_MIC_GAIN        (PLD_AUD_MMGPIO_BASE + 1)
114 #define PLD_AUD_CODEC_EN        (PLD_AUD_MMGPIO_BASE + 0)
115 
116 #define PLD_CF                  (SYSPLD_PHYS_BASE + 0x000024)
117 #define PLD_CF_MMGPIO_BASE      (P720T_MMGPIO_BASE + 72)
118 #define PLD_CF2_SLEEP           (PLD_CF_MMGPIO_BASE + 5)
119 #define PLD_CF1_SLEEP           (PLD_CF_MMGPIO_BASE + 4)
120 #define PLD_CF2_nPDREQ          (PLD_CF_MMGPIO_BASE + 3)
121 #define PLD_CF1_nPDREQ          (PLD_CF_MMGPIO_BASE + 2)
122 #define PLD_CF2_nIRQ            (PLD_CF_MMGPIO_BASE + 1)
123 #define PLD_CF1_nIRQ            (PLD_CF_MMGPIO_BASE + 0)
124 
125 #define PLD_SDC                 (SYSPLD_PHYS_BASE + 0x000028)
126 #define PLD_SDC_MMGPIO_BASE     (P720T_MMGPIO_BASE + 80)
127 #define PLD_SDC_INT_EN          (PLD_SDC_MMGPIO_BASE + 2)
128 #define PLD_SDC_WP              (PLD_SDC_MMGPIO_BASE + 1)
129 #define PLD_SDC_CD              (PLD_SDC_MMGPIO_BASE + 0)
130 
131 #define PLD_CODEC               (SYSPLD_PHYS_BASE + 0x400000)
132 #define PLD_CODEC_MMGPIO_BASE   (P720T_MMGPIO_BASE + 88)
133 #define PLD_CODEC_IRQ3          (PLD_CODEC_MMGPIO_BASE + 4)
134 #define PLD_CODEC_IRQ2          (PLD_CODEC_MMGPIO_BASE + 3)
135 #define PLD_CODEC_IRQ1          (PLD_CODEC_MMGPIO_BASE + 2)
136 #define PLD_CODEC_EN            (PLD_CODEC_MMGPIO_BASE + 0)
137 
138 #define PLD_BRITE               (SYSPLD_PHYS_BASE + 0x400004)
139 #define PLD_BRITE_MMGPIO_BASE   (P720T_MMGPIO_BASE + 96)
140 #define PLD_BRITE_UP            (PLD_BRITE_MMGPIO_BASE + 1)
141 #define PLD_BRITE_DN            (PLD_BRITE_MMGPIO_BASE + 0)
142 
143 #define PLD_LCDEN               (SYSPLD_PHYS_BASE + 0x400008)
144 #define PLD_LCDEN_MMGPIO_BASE   (P720T_MMGPIO_BASE + 104)
145 #define PLD_LCDEN_EN            (PLD_LCDEN_MMGPIO_BASE + 0)
146 
147 #define PLD_TCH                 (SYSPLD_PHYS_BASE + 0x400010)
148 #define PLD_TCH_MMGPIO_BASE     (P720T_MMGPIO_BASE + 112)
149 #define PLD_TCH_PENIRQ          (PLD_TCH_MMGPIO_BASE + 1)
150 #define PLD_TCH_EN              (PLD_TCH_MMGPIO_BASE + 0)
151 
152 #define PLD_GPIO                (SYSPLD_PHYS_BASE + 0x400014)
153 #define PLD_GPIO_MMGPIO_BASE    (P720T_MMGPIO_BASE + 120)
154 #define PLD_GPIO2               (PLD_GPIO_MMGPIO_BASE + 2)
155 #define PLD_GPIO1               (PLD_GPIO_MMGPIO_BASE + 1)
156 #define PLD_GPIO0               (PLD_GPIO_MMGPIO_BASE + 0)
157 
158 static struct gpio p720t_gpios[] __initconst = {
159         { PLD_S1_ON,    GPIOF_OUT_INIT_LOW,     "PLD_S1_ON" },
160         { PLD_S2_ON,    GPIOF_OUT_INIT_LOW,     "PLD_S2_ON" },
161         { PLD_S3_ON,    GPIOF_OUT_INIT_LOW,     "PLD_S3_ON" },
162         { PLD_S4_ON,    GPIOF_OUT_INIT_LOW,     "PLD_S4_ON" },
163         { PLD_KBD_EN,   GPIOF_OUT_INIT_LOW,     "PLD_KBD_EN" },
164         { PLD_SPI_EN,   GPIOF_OUT_INIT_LOW,     "PLD_SPI_EN" },
165         { PLD_IO_USER,  GPIOF_OUT_INIT_LOW,     "PLD_IO_USER" },
166         { PLD_IO_LED0,  GPIOF_OUT_INIT_LOW,     "PLD_IO_LED0" },
167         { PLD_IO_LED1,  GPIOF_OUT_INIT_LOW,     "PLD_IO_LED1" },
168         { PLD_IO_LED2,  GPIOF_OUT_INIT_LOW,     "PLD_IO_LED2" },
169         { PLD_IO_LED3,  GPIOF_OUT_INIT_LOW,     "PLD_IO_LED3" },
170         { PLD_IO_LEDEN, GPIOF_OUT_INIT_LOW,     "PLD_IO_LEDEN" },
171         { PLD_IRDA_EN,  GPIOF_OUT_INIT_LOW,     "PLD_IRDA_EN" },
172         { PLD_COM1_EN,  GPIOF_OUT_INIT_HIGH,    "PLD_COM1_EN" },
173         { PLD_COM2_EN,  GPIOF_OUT_INIT_HIGH,    "PLD_COM2_EN" },
174         { PLD_CODEC_EN, GPIOF_OUT_INIT_LOW,     "PLD_CODEC_EN" },
175         { PLD_LCDEN_EN, GPIOF_OUT_INIT_LOW,     "PLD_LCDEN_EN" },
176         { PLD_TCH_EN,   GPIOF_OUT_INIT_LOW,     "PLD_TCH_EN" },
177         { P720T_USERLED,GPIOF_OUT_INIT_LOW,     "USER_LED" },
178 };
179 
180 static struct resource p720t_mmgpio_resource[] __initdata = {
181         DEFINE_RES_MEM_NAMED(0, 4, "dat"),
182 };
183 
184 static struct bgpio_pdata p720t_mmgpio_pdata = {
185         .ngpio  = 8,
186 };
187 
188 static struct platform_device p720t_mmgpio __initdata = {
189         .name           = "basic-mmio-gpio",
190         .id             = -1,
191         .resource       = p720t_mmgpio_resource,
192         .num_resources  = ARRAY_SIZE(p720t_mmgpio_resource),
193         .dev            = {
194                 .platform_data  = &p720t_mmgpio_pdata,
195         },
196 };
197 
198 static void __init p720t_mmgpio_init(void __iomem *addrbase, int gpiobase)
199 {
200         p720t_mmgpio_resource[0].start = (unsigned long)addrbase;
201         p720t_mmgpio_pdata.base = gpiobase;
202 
203         platform_device_register(&p720t_mmgpio);
204 }
205 
206 static struct {
207         void __iomem    *addrbase;
208         int             gpiobase;
209 } mmgpios[] __initconst = {
210         { PLD_INT,      PLD_INT_MMGPIO_BASE },
211         { PLD_PWR,      PLD_PWR_MMGPIO_BASE },
212         { PLD_KBD,      PLD_KBD_MMGPIO_BASE },
213         { PLD_SPI,      PLD_SPI_MMGPIO_BASE },
214         { PLD_IO,       PLD_IO_MMGPIO_BASE },
215         { PLD_IRDA,     PLD_IRDA_MMGPIO_BASE },
216         { PLD_COM2,     PLD_COM2_MMGPIO_BASE },
217         { PLD_COM1,     PLD_COM1_MMGPIO_BASE },
218         { PLD_AUD,      PLD_AUD_MMGPIO_BASE },
219         { PLD_CF,       PLD_CF_MMGPIO_BASE },
220         { PLD_SDC,      PLD_SDC_MMGPIO_BASE },
221         { PLD_CODEC,    PLD_CODEC_MMGPIO_BASE },
222         { PLD_BRITE,    PLD_BRITE_MMGPIO_BASE },
223         { PLD_LCDEN,    PLD_LCDEN_MMGPIO_BASE },
224         { PLD_TCH,      PLD_TCH_MMGPIO_BASE },
225         { PLD_GPIO,     PLD_GPIO_MMGPIO_BASE },
226 };
227 
228 static struct resource p720t_nand_resource[] __initdata = {
229         DEFINE_RES_MEM(P720T_NAND_BASE, SZ_4),
230 };
231 
232 static struct mtd_partition p720t_nand_parts[] __initdata = {
233         {
234                 .name   = "Flash partition 1",
235                 .offset = 0,
236                 .size   = SZ_2M,
237         },
238         {
239                 .name   = "Flash partition 2",
240                 .offset = MTDPART_OFS_APPEND,
241                 .size   = MTDPART_SIZ_FULL,
242         },
243 };
244 
245 static struct gpio_nand_platdata p720t_nand_pdata __initdata = {
246         .gpio_rdy       = -1,
247         .gpio_nce       = P720T_NAND_NCE,
248         .gpio_ale       = P720T_NAND_ALE,
249         .gpio_cle       = P720T_NAND_CLE,
250         .gpio_nwp       = -1,
251         .chip_delay     = 15,
252         .parts          = p720t_nand_parts,
253         .num_parts      = ARRAY_SIZE(p720t_nand_parts),
254 };
255 
256 static struct platform_device p720t_nand_pdev __initdata = {
257         .name           = "gpio-nand",
258         .id             = -1,
259         .resource       = p720t_nand_resource,
260         .num_resources  = ARRAY_SIZE(p720t_nand_resource),
261         .dev            = {
262                 .platform_data = &p720t_nand_pdata,
263         },
264 };
265 
266 static void p720t_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
267 {
268         if (power) {
269                 gpio_set_value(PLD_LCDEN_EN, 1);
270                 gpio_set_value(PLD_S1_ON, 1);
271                 gpio_set_value(PLD_S2_ON, 1);
272                 gpio_set_value(PLD_S4_ON, 1);
273         } else {
274                 gpio_set_value(PLD_S1_ON, 0);
275                 gpio_set_value(PLD_S2_ON, 0);
276                 gpio_set_value(PLD_S4_ON, 0);
277                 gpio_set_value(PLD_LCDEN_EN, 0);
278         }
279 }
280 
281 static struct plat_lcd_data p720t_lcd_power_pdata = {
282         .set_power      = p720t_lcd_power_set,
283 };
284 
285 static void p720t_lcd_backlight_set_intensity(int intensity)
286 {
287         gpio_set_value(PLD_S3_ON, intensity);
288 }
289 
290 static struct generic_bl_info p720t_lcd_backlight_pdata = {
291         .name                   = "lcd-backlight.0",
292         .default_intensity      = 0x01,
293         .max_intensity          = 0x01,
294         .set_bl_intensity       = p720t_lcd_backlight_set_intensity,
295 };
296 
297 static void __init
298 fixup_p720t(struct tag *tag, char **cmdline)
299 {
300         /*
301          * Our bootloader doesn't setup any tags (yet).
302          */
303         if (tag->hdr.tag != ATAG_CORE) {
304                 tag->hdr.tag = ATAG_CORE;
305                 tag->hdr.size = tag_size(tag_core);
306                 tag->u.core.flags = 0;
307                 tag->u.core.pagesize = PAGE_SIZE;
308                 tag->u.core.rootdev = 0x0100;
309 
310                 tag = tag_next(tag);
311                 tag->hdr.tag = ATAG_MEM;
312                 tag->hdr.size = tag_size(tag_mem32);
313                 tag->u.mem.size = 4096;
314                 tag->u.mem.start = PHYS_OFFSET;
315 
316                 tag = tag_next(tag);
317                 tag->hdr.tag = ATAG_NONE;
318                 tag->hdr.size = 0;
319         }
320 }
321 
322 static struct gpio_led p720t_gpio_leds[] = {
323         {
324                 .name                   = "User LED",
325                 .default_trigger        = "heartbeat",
326                 .gpio                   = P720T_USERLED,
327         },
328 };
329 
330 static struct gpio_led_platform_data p720t_gpio_led_pdata __initdata = {
331         .leds           = p720t_gpio_leds,
332         .num_leds       = ARRAY_SIZE(p720t_gpio_leds),
333 };
334 
335 static void __init p720t_init(void)
336 {
337         int i;
338 
339         clps711x_devices_init();
340 
341         for (i = 0; i < ARRAY_SIZE(mmgpios); i++)
342                 p720t_mmgpio_init(mmgpios[i].addrbase, mmgpios[i].gpiobase);
343 
344         platform_device_register(&p720t_nand_pdev);
345 }
346 
347 static void __init p720t_init_late(void)
348 {
349         WARN_ON(gpio_request_array(p720t_gpios, ARRAY_SIZE(p720t_gpios)));
350 
351         platform_device_register_data(NULL, "platform-lcd", 0,
352                                       &p720t_lcd_power_pdata,
353                                       sizeof(p720t_lcd_power_pdata));
354         platform_device_register_data(NULL, "generic-bl", 0,
355                                       &p720t_lcd_backlight_pdata,
356                                       sizeof(p720t_lcd_backlight_pdata));
357         platform_device_register_simple("video-clps711x", 0, NULL, 0);
358         platform_device_register_data(NULL, "leds-gpio", 0,
359                                       &p720t_gpio_led_pdata,
360                                       sizeof(p720t_gpio_led_pdata));
361 }
362 
363 MACHINE_START(P720T, "ARM-Prospector720T")
364         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
365         .atag_offset    = 0x100,
366         .fixup          = fixup_p720t,
367         .map_io         = clps711x_map_io,
368         .init_irq       = clps711x_init_irq,
369         .init_time      = clps711x_timer_init,
370         .init_machine   = p720t_init,
371         .init_late      = p720t_init_late,
372         .restart        = clps711x_restart,
373 MACHINE_END
374 

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