tools, slub: Fix off-by-one buffer corruption after readlink() call
[linux-2.6/linux-mips.git] / arch / arm / mach-shmobile / board-ag5evm.c
blobce5c2513c6ce93f62f37356d55f2835fbf3a6332
1 /*
2 * arch/arm/mach-shmobile/board-ag5evm.c
4 * Copyright (C) 2010 Takashi Yoshii <yoshii.takashi.zj@renesas.com>
5 * Copyright (C) 2009 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
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.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #include <linux/kernel.h>
23 #include <linux/init.h>
24 #include <linux/interrupt.h>
25 #include <linux/irq.h>
26 #include <linux/platform_device.h>
27 #include <linux/delay.h>
28 #include <linux/io.h>
29 #include <linux/dma-mapping.h>
30 #include <linux/serial_sci.h>
31 #include <linux/smsc911x.h>
32 #include <linux/gpio.h>
33 #include <linux/input.h>
34 #include <linux/input/sh_keysc.h>
35 #include <linux/mmc/host.h>
36 #include <linux/mmc/sh_mmcif.h>
37 #include <linux/mmc/sh_mobile_sdhi.h>
38 #include <linux/mfd/tmio.h>
39 #include <linux/sh_clk.h>
40 #include <video/sh_mobile_lcdc.h>
41 #include <video/sh_mipi_dsi.h>
42 #include <sound/sh_fsi.h>
43 #include <mach/hardware.h>
44 #include <mach/sh73a0.h>
45 #include <mach/common.h>
46 #include <asm/mach-types.h>
47 #include <asm/mach/arch.h>
48 #include <asm/mach/map.h>
49 #include <asm/mach/time.h>
50 #include <asm/hardware/gic.h>
51 #include <asm/hardware/cache-l2x0.h>
52 #include <asm/traps.h>
54 static struct resource smsc9220_resources[] = {
55 [0] = {
56 .start = 0x14000000,
57 .end = 0x14000000 + SZ_64K - 1,
58 .flags = IORESOURCE_MEM,
60 [1] = {
61 .start = gic_spi(33), /* PINT1 */
62 .flags = IORESOURCE_IRQ,
66 static struct smsc911x_platform_config smsc9220_platdata = {
67 .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
68 .phy_interface = PHY_INTERFACE_MODE_MII,
69 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
70 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
73 static struct platform_device eth_device = {
74 .name = "smsc911x",
75 .id = 0,
76 .dev = {
77 .platform_data = &smsc9220_platdata,
79 .resource = smsc9220_resources,
80 .num_resources = ARRAY_SIZE(smsc9220_resources),
83 static struct sh_keysc_info keysc_platdata = {
84 .mode = SH_KEYSC_MODE_6,
85 .scan_timing = 3,
86 .delay = 100,
87 .keycodes = {
88 KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F, KEY_G,
89 KEY_H, KEY_I, KEY_J, KEY_K, KEY_L, KEY_M, KEY_N,
90 KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, KEY_U,
91 KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP,
92 KEY_SPACE, KEY_9, KEY_6, KEY_3, KEY_WAKEUP, KEY_RIGHT, \
93 KEY_COFFEE,
94 KEY_0, KEY_8, KEY_5, KEY_2, KEY_DOWN, KEY_ENTER, KEY_UP,
95 KEY_KPASTERISK, KEY_7, KEY_4, KEY_1, KEY_STOP, KEY_LEFT, \
96 KEY_COMPUTER,
100 static struct resource keysc_resources[] = {
101 [0] = {
102 .name = "KEYSC",
103 .start = 0xe61b0000,
104 .end = 0xe61b0098 - 1,
105 .flags = IORESOURCE_MEM,
107 [1] = {
108 .start = gic_spi(71),
109 .flags = IORESOURCE_IRQ,
113 static struct platform_device keysc_device = {
114 .name = "sh_keysc",
115 .id = 0,
116 .num_resources = ARRAY_SIZE(keysc_resources),
117 .resource = keysc_resources,
118 .dev = {
119 .platform_data = &keysc_platdata,
123 /* FSI A */
124 static struct resource fsi_resources[] = {
125 [0] = {
126 .name = "FSI",
127 .start = 0xEC230000,
128 .end = 0xEC230400 - 1,
129 .flags = IORESOURCE_MEM,
131 [1] = {
132 .start = gic_spi(146),
133 .flags = IORESOURCE_IRQ,
137 static struct platform_device fsi_device = {
138 .name = "sh_fsi2",
139 .id = -1,
140 .num_resources = ARRAY_SIZE(fsi_resources),
141 .resource = fsi_resources,
144 static struct resource sh_mmcif_resources[] = {
145 [0] = {
146 .name = "MMCIF",
147 .start = 0xe6bd0000,
148 .end = 0xe6bd00ff,
149 .flags = IORESOURCE_MEM,
151 [1] = {
152 .start = gic_spi(141),
153 .flags = IORESOURCE_IRQ,
155 [2] = {
156 .start = gic_spi(140),
157 .flags = IORESOURCE_IRQ,
161 static struct sh_mmcif_dma sh_mmcif_dma = {
162 .chan_priv_rx = {
163 .slave_id = SHDMA_SLAVE_MMCIF_RX,
165 .chan_priv_tx = {
166 .slave_id = SHDMA_SLAVE_MMCIF_TX,
169 static struct sh_mmcif_plat_data sh_mmcif_platdata = {
170 .sup_pclk = 0,
171 .ocr = MMC_VDD_165_195,
172 .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
173 .dma = &sh_mmcif_dma,
176 static struct platform_device mmc_device = {
177 .name = "sh_mmcif",
178 .id = 0,
179 .dev = {
180 .dma_mask = NULL,
181 .coherent_dma_mask = 0xffffffff,
182 .platform_data = &sh_mmcif_platdata,
184 .num_resources = ARRAY_SIZE(sh_mmcif_resources),
185 .resource = sh_mmcif_resources,
188 /* IrDA */
189 static struct resource irda_resources[] = {
190 [0] = {
191 .start = 0xE6D00000,
192 .end = 0xE6D01FD4 - 1,
193 .flags = IORESOURCE_MEM,
195 [1] = {
196 .start = gic_spi(95),
197 .flags = IORESOURCE_IRQ,
201 static struct platform_device irda_device = {
202 .name = "sh_irda",
203 .id = 0,
204 .resource = irda_resources,
205 .num_resources = ARRAY_SIZE(irda_resources),
208 static unsigned char lcd_backlight_seq[3][2] = {
209 { 0x04, 0x07 },
210 { 0x23, 0x80 },
211 { 0x03, 0x01 },
214 static void lcd_backlight_on(void)
216 struct i2c_adapter *a;
217 struct i2c_msg msg;
218 int k;
220 a = i2c_get_adapter(1);
221 for (k = 0; a && k < 3; k++) {
222 msg.addr = 0x6d;
223 msg.buf = &lcd_backlight_seq[k][0];
224 msg.len = 2;
225 msg.flags = 0;
226 if (i2c_transfer(a, &msg, 1) != 1)
227 break;
231 static void lcd_backlight_reset(void)
233 gpio_set_value(GPIO_PORT235, 0);
234 mdelay(24);
235 gpio_set_value(GPIO_PORT235, 1);
238 static void lcd_on(void *board_data, struct fb_info *info)
240 lcd_backlight_on();
243 static void lcd_off(void *board_data)
245 lcd_backlight_reset();
248 /* LCDC0 */
249 static const struct fb_videomode lcdc0_modes[] = {
251 .name = "R63302(QHD)",
252 .xres = 544,
253 .yres = 961,
254 .left_margin = 72,
255 .right_margin = 600,
256 .hsync_len = 16,
257 .upper_margin = 8,
258 .lower_margin = 8,
259 .vsync_len = 2,
260 .sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_HOR_HIGH_ACT,
264 static struct sh_mobile_lcdc_info lcdc0_info = {
265 .clock_source = LCDC_CLK_PERIPHERAL,
266 .ch[0] = {
267 .chan = LCDC_CHAN_MAINLCD,
268 .interface_type = RGB24,
269 .clock_divider = 1,
270 .flags = LCDC_FLAGS_DWPOL,
271 .lcd_size_cfg.width = 44,
272 .lcd_size_cfg.height = 79,
273 .bpp = 16,
274 .lcd_cfg = lcdc0_modes,
275 .num_cfg = ARRAY_SIZE(lcdc0_modes),
276 .board_cfg = {
277 .display_on = lcd_on,
278 .display_off = lcd_off,
283 static struct resource lcdc0_resources[] = {
284 [0] = {
285 .name = "LCDC0",
286 .start = 0xfe940000, /* P4-only space */
287 .end = 0xfe943fff,
288 .flags = IORESOURCE_MEM,
290 [1] = {
291 .start = intcs_evt2irq(0x580),
292 .flags = IORESOURCE_IRQ,
296 static struct platform_device lcdc0_device = {
297 .name = "sh_mobile_lcdc_fb",
298 .num_resources = ARRAY_SIZE(lcdc0_resources),
299 .resource = lcdc0_resources,
300 .id = 0,
301 .dev = {
302 .platform_data = &lcdc0_info,
303 .coherent_dma_mask = ~0,
307 /* MIPI-DSI */
308 static struct resource mipidsi0_resources[] = {
309 [0] = {
310 .name = "DSI0",
311 .start = 0xfeab0000,
312 .end = 0xfeab3fff,
313 .flags = IORESOURCE_MEM,
315 [1] = {
316 .name = "DSI0",
317 .start = 0xfeab4000,
318 .end = 0xfeab7fff,
319 .flags = IORESOURCE_MEM,
323 static struct sh_mipi_dsi_info mipidsi0_info = {
324 .data_format = MIPI_RGB888,
325 .lcd_chan = &lcdc0_info.ch[0],
326 .vsynw_offset = 20,
327 .clksrc = 1,
328 .flags = SH_MIPI_DSI_HSABM,
331 static struct platform_device mipidsi0_device = {
332 .name = "sh-mipi-dsi",
333 .num_resources = ARRAY_SIZE(mipidsi0_resources),
334 .resource = mipidsi0_resources,
335 .id = 0,
336 .dev = {
337 .platform_data = &mipidsi0_info,
341 static struct sh_mobile_sdhi_info sdhi0_info = {
342 .dma_slave_tx = SHDMA_SLAVE_SDHI0_TX,
343 .dma_slave_rx = SHDMA_SLAVE_SDHI0_RX,
344 .tmio_caps = MMC_CAP_SD_HIGHSPEED,
345 .tmio_ocr_mask = MMC_VDD_27_28 | MMC_VDD_28_29,
348 static struct resource sdhi0_resources[] = {
349 [0] = {
350 .name = "SDHI0",
351 .start = 0xee100000,
352 .end = 0xee1000ff,
353 .flags = IORESOURCE_MEM,
355 [1] = {
356 .start = gic_spi(83),
357 .flags = IORESOURCE_IRQ,
359 [2] = {
360 .start = gic_spi(84),
361 .flags = IORESOURCE_IRQ,
363 [3] = {
364 .start = gic_spi(85),
365 .flags = IORESOURCE_IRQ,
369 static struct platform_device sdhi0_device = {
370 .name = "sh_mobile_sdhi",
371 .id = 0,
372 .num_resources = ARRAY_SIZE(sdhi0_resources),
373 .resource = sdhi0_resources,
374 .dev = {
375 .platform_data = &sdhi0_info,
379 void ag5evm_sdhi1_set_pwr(struct platform_device *pdev, int state)
381 gpio_set_value(GPIO_PORT114, state);
384 static struct sh_mobile_sdhi_info sh_sdhi1_info = {
385 .tmio_flags = TMIO_MMC_WRPROTECT_DISABLE,
386 .tmio_caps = MMC_CAP_NONREMOVABLE | MMC_CAP_SDIO_IRQ,
387 .tmio_ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
388 .set_pwr = ag5evm_sdhi1_set_pwr,
391 static struct resource sdhi1_resources[] = {
392 [0] = {
393 .name = "SDHI1",
394 .start = 0xee120000,
395 .end = 0xee1200ff,
396 .flags = IORESOURCE_MEM,
398 [1] = {
399 .start = gic_spi(87),
400 .flags = IORESOURCE_IRQ,
402 [2] = {
403 .start = gic_spi(88),
404 .flags = IORESOURCE_IRQ,
406 [3] = {
407 .start = gic_spi(89),
408 .flags = IORESOURCE_IRQ,
412 static struct platform_device sdhi1_device = {
413 .name = "sh_mobile_sdhi",
414 .id = 1,
415 .dev = {
416 .platform_data = &sh_sdhi1_info,
418 .num_resources = ARRAY_SIZE(sdhi1_resources),
419 .resource = sdhi1_resources,
422 static struct platform_device *ag5evm_devices[] __initdata = {
423 &eth_device,
424 &keysc_device,
425 &fsi_device,
426 &mmc_device,
427 &irda_device,
428 &lcdc0_device,
429 &mipidsi0_device,
430 &sdhi0_device,
431 &sdhi1_device,
434 static struct map_desc ag5evm_io_desc[] __initdata = {
435 /* create a 1:1 entity map for 0xe6xxxxxx
436 * used by CPGA, INTC and PFC.
439 .virtual = 0xe6000000,
440 .pfn = __phys_to_pfn(0xe6000000),
441 .length = 256 << 20,
442 .type = MT_DEVICE_NONSHARED
446 static void __init ag5evm_map_io(void)
448 iotable_init(ag5evm_io_desc, ARRAY_SIZE(ag5evm_io_desc));
450 /* setup early devices and console here as well */
451 sh73a0_add_early_devices();
452 shmobile_setup_console();
455 #define PINTC_ADDR 0xe6900000
456 #define PINTER0A (PINTC_ADDR + 0xa0)
457 #define PINTCR0A (PINTC_ADDR + 0xb0)
459 void __init ag5evm_init_irq(void)
461 sh73a0_init_irq();
463 /* setup PINT: enable PINTA2 as active low */
464 __raw_writel(__raw_readl(PINTER0A) | (1<<29), PINTER0A);
465 __raw_writew(__raw_readw(PINTCR0A) | (2<<10), PINTCR0A);
468 #define DSI0PHYCR 0xe615006c
470 static void __init ag5evm_init(void)
472 sh73a0_pinmux_init();
474 /* enable SCIFA2 */
475 gpio_request(GPIO_FN_SCIFA2_TXD1, NULL);
476 gpio_request(GPIO_FN_SCIFA2_RXD1, NULL);
477 gpio_request(GPIO_FN_SCIFA2_RTS1_, NULL);
478 gpio_request(GPIO_FN_SCIFA2_CTS1_, NULL);
480 /* enable KEYSC */
481 gpio_request(GPIO_FN_KEYIN0_PU, NULL);
482 gpio_request(GPIO_FN_KEYIN1_PU, NULL);
483 gpio_request(GPIO_FN_KEYIN2_PU, NULL);
484 gpio_request(GPIO_FN_KEYIN3_PU, NULL);
485 gpio_request(GPIO_FN_KEYIN4_PU, NULL);
486 gpio_request(GPIO_FN_KEYIN5_PU, NULL);
487 gpio_request(GPIO_FN_KEYIN6_PU, NULL);
488 gpio_request(GPIO_FN_KEYIN7_PU, NULL);
489 gpio_request(GPIO_FN_KEYOUT0, NULL);
490 gpio_request(GPIO_FN_KEYOUT1, NULL);
491 gpio_request(GPIO_FN_KEYOUT2, NULL);
492 gpio_request(GPIO_FN_KEYOUT3, NULL);
493 gpio_request(GPIO_FN_KEYOUT4, NULL);
494 gpio_request(GPIO_FN_KEYOUT5, NULL);
495 gpio_request(GPIO_FN_PORT59_KEYOUT6, NULL);
496 gpio_request(GPIO_FN_PORT58_KEYOUT7, NULL);
497 gpio_request(GPIO_FN_KEYOUT8, NULL);
498 gpio_request(GPIO_FN_PORT149_KEYOUT9, NULL);
500 /* enable I2C channel 2 and 3 */
501 gpio_request(GPIO_FN_PORT236_I2C_SDA2, NULL);
502 gpio_request(GPIO_FN_PORT237_I2C_SCL2, NULL);
503 gpio_request(GPIO_FN_PORT248_I2C_SCL3, NULL);
504 gpio_request(GPIO_FN_PORT249_I2C_SDA3, NULL);
506 /* enable MMCIF */
507 gpio_request(GPIO_FN_MMCCLK0, NULL);
508 gpio_request(GPIO_FN_MMCCMD0_PU, NULL);
509 gpio_request(GPIO_FN_MMCD0_0, NULL);
510 gpio_request(GPIO_FN_MMCD0_1, NULL);
511 gpio_request(GPIO_FN_MMCD0_2, NULL);
512 gpio_request(GPIO_FN_MMCD0_3, NULL);
513 gpio_request(GPIO_FN_MMCD0_4, NULL);
514 gpio_request(GPIO_FN_MMCD0_5, NULL);
515 gpio_request(GPIO_FN_MMCD0_6, NULL);
516 gpio_request(GPIO_FN_MMCD0_7, NULL);
517 gpio_request(GPIO_PORT208, NULL); /* Reset */
518 gpio_direction_output(GPIO_PORT208, 1);
520 /* enable SMSC911X */
521 gpio_request(GPIO_PORT144, NULL); /* PINTA2 */
522 gpio_direction_input(GPIO_PORT144);
523 gpio_request(GPIO_PORT145, NULL); /* RESET */
524 gpio_direction_output(GPIO_PORT145, 1);
526 /* FSI A */
527 gpio_request(GPIO_FN_FSIACK, NULL);
528 gpio_request(GPIO_FN_FSIAILR, NULL);
529 gpio_request(GPIO_FN_FSIAIBT, NULL);
530 gpio_request(GPIO_FN_FSIAISLD, NULL);
531 gpio_request(GPIO_FN_FSIAOSLD, NULL);
533 /* IrDA */
534 gpio_request(GPIO_FN_PORT241_IRDA_OUT, NULL);
535 gpio_request(GPIO_FN_PORT242_IRDA_IN, NULL);
536 gpio_request(GPIO_FN_PORT243_IRDA_FIRSEL, NULL);
538 /* LCD panel */
539 gpio_request(GPIO_PORT217, NULL); /* RESET */
540 gpio_direction_output(GPIO_PORT217, 0);
541 mdelay(1);
542 gpio_set_value(GPIO_PORT217, 1);
543 mdelay(100);
545 /* LCD backlight controller */
546 gpio_request(GPIO_PORT235, NULL); /* RESET */
547 gpio_direction_output(GPIO_PORT235, 0);
548 lcd_backlight_reset();
550 /* MIPI-DSI clock setup */
551 __raw_writel(0x2a809010, DSI0PHYCR);
553 /* enable SDHI0 on CN15 [SD I/F] */
554 gpio_request(GPIO_FN_SDHICD0, NULL);
555 gpio_request(GPIO_FN_SDHIWP0, NULL);
556 gpio_request(GPIO_FN_SDHICMD0, NULL);
557 gpio_request(GPIO_FN_SDHICLK0, NULL);
558 gpio_request(GPIO_FN_SDHID0_3, NULL);
559 gpio_request(GPIO_FN_SDHID0_2, NULL);
560 gpio_request(GPIO_FN_SDHID0_1, NULL);
561 gpio_request(GPIO_FN_SDHID0_0, NULL);
563 /* enable SDHI1 on CN4 [WLAN I/F] */
564 gpio_request(GPIO_FN_SDHICLK1, NULL);
565 gpio_request(GPIO_FN_SDHICMD1_PU, NULL);
566 gpio_request(GPIO_FN_SDHID1_3_PU, NULL);
567 gpio_request(GPIO_FN_SDHID1_2_PU, NULL);
568 gpio_request(GPIO_FN_SDHID1_1_PU, NULL);
569 gpio_request(GPIO_FN_SDHID1_0_PU, NULL);
570 gpio_request(GPIO_PORT114, "sdhi1_power");
571 gpio_direction_output(GPIO_PORT114, 0);
573 #ifdef CONFIG_CACHE_L2X0
574 /* Shared attribute override enable, 64K*8way */
575 l2x0_init(__io(0xf0100000), 0x00460000, 0xc2000fff);
576 #endif
577 sh73a0_add_standard_devices();
578 platform_add_devices(ag5evm_devices, ARRAY_SIZE(ag5evm_devices));
581 static void __init ag5evm_timer_init(void)
583 sh73a0_clock_init();
584 shmobile_timer.init();
585 return;
588 struct sys_timer ag5evm_timer = {
589 .init = ag5evm_timer_init,
592 MACHINE_START(AG5EVM, "ag5evm")
593 .map_io = ag5evm_map_io,
594 .init_irq = ag5evm_init_irq,
595 .handle_irq = shmobile_handle_irq_gic,
596 .init_machine = ag5evm_init,
597 .timer = &ag5evm_timer,
598 MACHINE_END