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/basic_mmio_gpio.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
p720t_mmgpio_init(void __iomem * addrbase,int gpiobase)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
p720t_lcd_power_set(struct plat_lcd_data * pd,unsigned int power)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
p720t_lcd_backlight_set_intensity(int intensity)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
fixup_p720t(struct tag * tag,char ** cmdline)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
p720t_init(void)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
p720t_init_late(void)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