staging: comedi: fix a race between do_cmd_ioctl() and read/write
[linux/fpc-iii.git] / arch / arm / mach-shmobile / board-ag5evm.c
blob0891ec6e27f502b8fe220a3bff3b97dfbbe44c69
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/videodev2.h>
34 #include <linux/input.h>
35 #include <linux/input/sh_keysc.h>
36 #include <linux/mmc/host.h>
37 #include <linux/mmc/sh_mmcif.h>
38 #include <linux/mmc/sh_mobile_sdhi.h>
39 #include <linux/mfd/tmio.h>
40 #include <linux/sh_clk.h>
41 #include <linux/videodev2.h>
42 #include <video/sh_mobile_lcdc.h>
43 #include <video/sh_mipi_dsi.h>
44 #include <sound/sh_fsi.h>
45 #include <mach/hardware.h>
46 #include <mach/irqs.h>
47 #include <mach/sh73a0.h>
48 #include <mach/common.h>
49 #include <asm/mach-types.h>
50 #include <asm/mach/arch.h>
51 #include <asm/hardware/gic.h>
52 #include <asm/hardware/cache-l2x0.h>
53 #include <asm/traps.h>
55 static struct resource smsc9220_resources[] = {
56 [0] = {
57 .start = 0x14000000,
58 .end = 0x14000000 + SZ_64K - 1,
59 .flags = IORESOURCE_MEM,
61 [1] = {
62 .start = SH73A0_PINT0_IRQ(2), /* PINTA2 */
63 .flags = IORESOURCE_IRQ,
67 static struct smsc911x_platform_config smsc9220_platdata = {
68 .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
69 .phy_interface = PHY_INTERFACE_MODE_MII,
70 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
71 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
74 static struct platform_device eth_device = {
75 .name = "smsc911x",
76 .id = 0,
77 .dev = {
78 .platform_data = &smsc9220_platdata,
80 .resource = smsc9220_resources,
81 .num_resources = ARRAY_SIZE(smsc9220_resources),
84 static struct sh_keysc_info keysc_platdata = {
85 .mode = SH_KEYSC_MODE_6,
86 .scan_timing = 3,
87 .delay = 100,
88 .keycodes = {
89 KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F, KEY_G,
90 KEY_H, KEY_I, KEY_J, KEY_K, KEY_L, KEY_M, KEY_N,
91 KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, KEY_U,
92 KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP,
93 KEY_SPACE, KEY_9, KEY_6, KEY_3, KEY_WAKEUP, KEY_RIGHT, \
94 KEY_COFFEE,
95 KEY_0, KEY_8, KEY_5, KEY_2, KEY_DOWN, KEY_ENTER, KEY_UP,
96 KEY_KPASTERISK, KEY_7, KEY_4, KEY_1, KEY_STOP, KEY_LEFT, \
97 KEY_COMPUTER,
101 static struct resource keysc_resources[] = {
102 [0] = {
103 .name = "KEYSC",
104 .start = 0xe61b0000,
105 .end = 0xe61b0098 - 1,
106 .flags = IORESOURCE_MEM,
108 [1] = {
109 .start = gic_spi(71),
110 .flags = IORESOURCE_IRQ,
114 static struct platform_device keysc_device = {
115 .name = "sh_keysc",
116 .id = 0,
117 .num_resources = ARRAY_SIZE(keysc_resources),
118 .resource = keysc_resources,
119 .dev = {
120 .platform_data = &keysc_platdata,
124 /* FSI A */
125 static struct resource fsi_resources[] = {
126 [0] = {
127 .name = "FSI",
128 .start = 0xEC230000,
129 .end = 0xEC230400 - 1,
130 .flags = IORESOURCE_MEM,
132 [1] = {
133 .start = gic_spi(146),
134 .flags = IORESOURCE_IRQ,
138 static struct platform_device fsi_device = {
139 .name = "sh_fsi2",
140 .id = -1,
141 .num_resources = ARRAY_SIZE(fsi_resources),
142 .resource = fsi_resources,
145 static struct resource sh_mmcif_resources[] = {
146 [0] = {
147 .name = "MMCIF",
148 .start = 0xe6bd0000,
149 .end = 0xe6bd00ff,
150 .flags = IORESOURCE_MEM,
152 [1] = {
153 .start = gic_spi(141),
154 .flags = IORESOURCE_IRQ,
156 [2] = {
157 .start = gic_spi(140),
158 .flags = IORESOURCE_IRQ,
162 static struct sh_mmcif_plat_data sh_mmcif_platdata = {
163 .sup_pclk = 0,
164 .ocr = MMC_VDD_165_195,
165 .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
166 .slave_id_tx = SHDMA_SLAVE_MMCIF_TX,
167 .slave_id_rx = SHDMA_SLAVE_MMCIF_RX,
170 static struct platform_device mmc_device = {
171 .name = "sh_mmcif",
172 .id = 0,
173 .dev = {
174 .dma_mask = NULL,
175 .coherent_dma_mask = 0xffffffff,
176 .platform_data = &sh_mmcif_platdata,
178 .num_resources = ARRAY_SIZE(sh_mmcif_resources),
179 .resource = sh_mmcif_resources,
182 /* IrDA */
183 static struct resource irda_resources[] = {
184 [0] = {
185 .start = 0xE6D00000,
186 .end = 0xE6D01FD4 - 1,
187 .flags = IORESOURCE_MEM,
189 [1] = {
190 .start = gic_spi(95),
191 .flags = IORESOURCE_IRQ,
195 static struct platform_device irda_device = {
196 .name = "sh_irda",
197 .id = 0,
198 .resource = irda_resources,
199 .num_resources = ARRAY_SIZE(irda_resources),
202 static unsigned char lcd_backlight_seq[3][2] = {
203 { 0x04, 0x07 },
204 { 0x23, 0x80 },
205 { 0x03, 0x01 },
208 static void lcd_backlight_on(void)
210 struct i2c_adapter *a;
211 struct i2c_msg msg;
212 int k;
214 a = i2c_get_adapter(1);
215 for (k = 0; a && k < 3; k++) {
216 msg.addr = 0x6d;
217 msg.buf = &lcd_backlight_seq[k][0];
218 msg.len = 2;
219 msg.flags = 0;
220 if (i2c_transfer(a, &msg, 1) != 1)
221 break;
225 static void lcd_backlight_reset(void)
227 gpio_set_value(GPIO_PORT235, 0);
228 mdelay(24);
229 gpio_set_value(GPIO_PORT235, 1);
232 /* LCDC0 */
233 static const struct fb_videomode lcdc0_modes[] = {
235 .name = "R63302(QHD)",
236 .xres = 544,
237 .yres = 961,
238 .left_margin = 72,
239 .right_margin = 600,
240 .hsync_len = 16,
241 .upper_margin = 8,
242 .lower_margin = 8,
243 .vsync_len = 2,
244 .sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_HOR_HIGH_ACT,
248 static struct sh_mobile_lcdc_info lcdc0_info = {
249 .clock_source = LCDC_CLK_PERIPHERAL,
250 .ch[0] = {
251 .chan = LCDC_CHAN_MAINLCD,
252 .interface_type = RGB24,
253 .clock_divider = 1,
254 .flags = LCDC_FLAGS_DWPOL,
255 .fourcc = V4L2_PIX_FMT_RGB565,
256 .lcd_modes = lcdc0_modes,
257 .num_modes = ARRAY_SIZE(lcdc0_modes),
258 .panel_cfg = {
259 .width = 44,
260 .height = 79,
261 .display_on = lcd_backlight_on,
262 .display_off = lcd_backlight_reset,
267 static struct resource lcdc0_resources[] = {
268 [0] = {
269 .name = "LCDC0",
270 .start = 0xfe940000, /* P4-only space */
271 .end = 0xfe943fff,
272 .flags = IORESOURCE_MEM,
274 [1] = {
275 .start = intcs_evt2irq(0x580),
276 .flags = IORESOURCE_IRQ,
280 static struct platform_device lcdc0_device = {
281 .name = "sh_mobile_lcdc_fb",
282 .num_resources = ARRAY_SIZE(lcdc0_resources),
283 .resource = lcdc0_resources,
284 .id = 0,
285 .dev = {
286 .platform_data = &lcdc0_info,
287 .coherent_dma_mask = ~0,
291 /* MIPI-DSI */
292 static struct resource mipidsi0_resources[] = {
293 [0] = {
294 .name = "DSI0",
295 .start = 0xfeab0000,
296 .end = 0xfeab3fff,
297 .flags = IORESOURCE_MEM,
299 [1] = {
300 .name = "DSI0",
301 .start = 0xfeab4000,
302 .end = 0xfeab7fff,
303 .flags = IORESOURCE_MEM,
307 static int sh_mipi_set_dot_clock(struct platform_device *pdev,
308 void __iomem *base,
309 int enable)
311 struct clk *pck, *phy;
312 int ret;
314 pck = clk_get(&pdev->dev, "dsip_clk");
315 if (IS_ERR(pck)) {
316 ret = PTR_ERR(pck);
317 goto sh_mipi_set_dot_clock_pck_err;
320 phy = clk_get(&pdev->dev, "dsiphy_clk");
321 if (IS_ERR(phy)) {
322 ret = PTR_ERR(phy);
323 goto sh_mipi_set_dot_clock_phy_err;
326 if (enable) {
327 clk_set_rate(pck, clk_round_rate(pck, 24000000));
328 clk_set_rate(phy, clk_round_rate(pck, 510000000));
329 clk_enable(pck);
330 clk_enable(phy);
331 } else {
332 clk_disable(pck);
333 clk_disable(phy);
336 ret = 0;
338 clk_put(phy);
339 sh_mipi_set_dot_clock_phy_err:
340 clk_put(pck);
341 sh_mipi_set_dot_clock_pck_err:
342 return ret;
345 static struct sh_mipi_dsi_info mipidsi0_info = {
346 .data_format = MIPI_RGB888,
347 .lcd_chan = &lcdc0_info.ch[0],
348 .lane = 2,
349 .vsynw_offset = 20,
350 .clksrc = 1,
351 .flags = SH_MIPI_DSI_HSABM |
352 SH_MIPI_DSI_SYNC_PULSES_MODE |
353 SH_MIPI_DSI_HSbyteCLK,
354 .set_dot_clock = sh_mipi_set_dot_clock,
357 static struct platform_device mipidsi0_device = {
358 .name = "sh-mipi-dsi",
359 .num_resources = ARRAY_SIZE(mipidsi0_resources),
360 .resource = mipidsi0_resources,
361 .id = 0,
362 .dev = {
363 .platform_data = &mipidsi0_info,
367 /* SDHI0 */
368 static struct sh_mobile_sdhi_info sdhi0_info = {
369 .dma_slave_tx = SHDMA_SLAVE_SDHI0_TX,
370 .dma_slave_rx = SHDMA_SLAVE_SDHI0_RX,
371 .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_USE_GPIO_CD,
372 .tmio_caps = MMC_CAP_SD_HIGHSPEED,
373 .tmio_ocr_mask = MMC_VDD_27_28 | MMC_VDD_28_29,
374 .cd_gpio = GPIO_PORT251,
377 static struct resource sdhi0_resources[] = {
378 [0] = {
379 .name = "SDHI0",
380 .start = 0xee100000,
381 .end = 0xee1000ff,
382 .flags = IORESOURCE_MEM,
384 [1] = {
385 .name = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
386 .start = gic_spi(83),
387 .flags = IORESOURCE_IRQ,
389 [2] = {
390 .name = SH_MOBILE_SDHI_IRQ_SDCARD,
391 .start = gic_spi(84),
392 .flags = IORESOURCE_IRQ,
394 [3] = {
395 .name = SH_MOBILE_SDHI_IRQ_SDIO,
396 .start = gic_spi(85),
397 .flags = IORESOURCE_IRQ,
401 static struct platform_device sdhi0_device = {
402 .name = "sh_mobile_sdhi",
403 .id = 0,
404 .num_resources = ARRAY_SIZE(sdhi0_resources),
405 .resource = sdhi0_resources,
406 .dev = {
407 .platform_data = &sdhi0_info,
411 void ag5evm_sdhi1_set_pwr(struct platform_device *pdev, int state)
413 gpio_set_value(GPIO_PORT114, state);
416 static struct sh_mobile_sdhi_info sh_sdhi1_info = {
417 .tmio_flags = TMIO_MMC_WRPROTECT_DISABLE | TMIO_MMC_HAS_IDLE_WAIT,
418 .tmio_caps = MMC_CAP_NONREMOVABLE | MMC_CAP_SDIO_IRQ,
419 .tmio_ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
420 .set_pwr = ag5evm_sdhi1_set_pwr,
423 static struct resource sdhi1_resources[] = {
424 [0] = {
425 .name = "SDHI1",
426 .start = 0xee120000,
427 .end = 0xee1200ff,
428 .flags = IORESOURCE_MEM,
430 [1] = {
431 .name = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
432 .start = gic_spi(87),
433 .flags = IORESOURCE_IRQ,
435 [2] = {
436 .name = SH_MOBILE_SDHI_IRQ_SDCARD,
437 .start = gic_spi(88),
438 .flags = IORESOURCE_IRQ,
440 [3] = {
441 .name = SH_MOBILE_SDHI_IRQ_SDIO,
442 .start = gic_spi(89),
443 .flags = IORESOURCE_IRQ,
447 static struct platform_device sdhi1_device = {
448 .name = "sh_mobile_sdhi",
449 .id = 1,
450 .dev = {
451 .platform_data = &sh_sdhi1_info,
453 .num_resources = ARRAY_SIZE(sdhi1_resources),
454 .resource = sdhi1_resources,
457 static struct platform_device *ag5evm_devices[] __initdata = {
458 &eth_device,
459 &keysc_device,
460 &fsi_device,
461 &mmc_device,
462 &irda_device,
463 &lcdc0_device,
464 &mipidsi0_device,
465 &sdhi0_device,
466 &sdhi1_device,
469 static void __init ag5evm_init(void)
471 sh73a0_pinmux_init();
473 /* enable SCIFA2 */
474 gpio_request(GPIO_FN_SCIFA2_TXD1, NULL);
475 gpio_request(GPIO_FN_SCIFA2_RXD1, NULL);
476 gpio_request(GPIO_FN_SCIFA2_RTS1_, NULL);
477 gpio_request(GPIO_FN_SCIFA2_CTS1_, NULL);
479 /* enable KEYSC */
480 gpio_request(GPIO_FN_KEYIN0_PU, NULL);
481 gpio_request(GPIO_FN_KEYIN1_PU, NULL);
482 gpio_request(GPIO_FN_KEYIN2_PU, NULL);
483 gpio_request(GPIO_FN_KEYIN3_PU, NULL);
484 gpio_request(GPIO_FN_KEYIN4_PU, NULL);
485 gpio_request(GPIO_FN_KEYIN5_PU, NULL);
486 gpio_request(GPIO_FN_KEYIN6_PU, NULL);
487 gpio_request(GPIO_FN_KEYIN7_PU, NULL);
488 gpio_request(GPIO_FN_KEYOUT0, NULL);
489 gpio_request(GPIO_FN_KEYOUT1, NULL);
490 gpio_request(GPIO_FN_KEYOUT2, NULL);
491 gpio_request(GPIO_FN_KEYOUT3, NULL);
492 gpio_request(GPIO_FN_KEYOUT4, NULL);
493 gpio_request(GPIO_FN_KEYOUT5, NULL);
494 gpio_request(GPIO_FN_PORT59_KEYOUT6, NULL);
495 gpio_request(GPIO_FN_PORT58_KEYOUT7, NULL);
496 gpio_request(GPIO_FN_KEYOUT8, NULL);
497 gpio_request(GPIO_FN_PORT149_KEYOUT9, NULL);
499 /* enable I2C channel 2 and 3 */
500 gpio_request(GPIO_FN_PORT236_I2C_SDA2, NULL);
501 gpio_request(GPIO_FN_PORT237_I2C_SCL2, NULL);
502 gpio_request(GPIO_FN_PORT248_I2C_SCL3, NULL);
503 gpio_request(GPIO_FN_PORT249_I2C_SDA3, NULL);
505 /* enable MMCIF */
506 gpio_request(GPIO_FN_MMCCLK0, NULL);
507 gpio_request(GPIO_FN_MMCCMD0_PU, NULL);
508 gpio_request(GPIO_FN_MMCD0_0_PU, NULL);
509 gpio_request(GPIO_FN_MMCD0_1_PU, NULL);
510 gpio_request(GPIO_FN_MMCD0_2_PU, NULL);
511 gpio_request(GPIO_FN_MMCD0_3_PU, NULL);
512 gpio_request(GPIO_FN_MMCD0_4_PU, NULL);
513 gpio_request(GPIO_FN_MMCD0_5_PU, NULL);
514 gpio_request(GPIO_FN_MMCD0_6_PU, NULL);
515 gpio_request(GPIO_FN_MMCD0_7_PU, NULL);
516 gpio_request(GPIO_PORT208, NULL); /* Reset */
517 gpio_direction_output(GPIO_PORT208, 1);
519 /* enable SMSC911X */
520 gpio_request(GPIO_PORT144, NULL); /* PINTA2 */
521 gpio_direction_input(GPIO_PORT144);
522 gpio_request(GPIO_PORT145, NULL); /* RESET */
523 gpio_direction_output(GPIO_PORT145, 1);
525 /* FSI A */
526 gpio_request(GPIO_FN_FSIACK, NULL);
527 gpio_request(GPIO_FN_FSIAILR, NULL);
528 gpio_request(GPIO_FN_FSIAIBT, NULL);
529 gpio_request(GPIO_FN_FSIAISLD, NULL);
530 gpio_request(GPIO_FN_FSIAOSLD, NULL);
532 /* IrDA */
533 gpio_request(GPIO_FN_PORT241_IRDA_OUT, NULL);
534 gpio_request(GPIO_FN_PORT242_IRDA_IN, NULL);
535 gpio_request(GPIO_FN_PORT243_IRDA_FIRSEL, NULL);
537 /* LCD panel */
538 gpio_request(GPIO_PORT217, NULL); /* RESET */
539 gpio_direction_output(GPIO_PORT217, 0);
540 mdelay(1);
541 gpio_set_value(GPIO_PORT217, 1);
542 mdelay(100);
544 /* LCD backlight controller */
545 gpio_request(GPIO_PORT235, NULL); /* RESET */
546 gpio_direction_output(GPIO_PORT235, 0);
547 lcd_backlight_reset();
549 /* enable SDHI0 on CN15 [SD I/F] */
550 gpio_request(GPIO_FN_SDHIWP0, NULL);
551 gpio_request(GPIO_FN_SDHICMD0, NULL);
552 gpio_request(GPIO_FN_SDHICLK0, NULL);
553 gpio_request(GPIO_FN_SDHID0_3, NULL);
554 gpio_request(GPIO_FN_SDHID0_2, NULL);
555 gpio_request(GPIO_FN_SDHID0_1, NULL);
556 gpio_request(GPIO_FN_SDHID0_0, NULL);
558 /* enable SDHI1 on CN4 [WLAN I/F] */
559 gpio_request(GPIO_FN_SDHICLK1, NULL);
560 gpio_request(GPIO_FN_SDHICMD1_PU, NULL);
561 gpio_request(GPIO_FN_SDHID1_3_PU, NULL);
562 gpio_request(GPIO_FN_SDHID1_2_PU, NULL);
563 gpio_request(GPIO_FN_SDHID1_1_PU, NULL);
564 gpio_request(GPIO_FN_SDHID1_0_PU, NULL);
565 gpio_request(GPIO_PORT114, "sdhi1_power");
566 gpio_direction_output(GPIO_PORT114, 0);
568 #ifdef CONFIG_CACHE_L2X0
569 /* Shared attribute override enable, 64K*8way */
570 l2x0_init(IOMEM(0xf0100000), 0x00460000, 0xc2000fff);
571 #endif
572 sh73a0_add_standard_devices();
573 platform_add_devices(ag5evm_devices, ARRAY_SIZE(ag5evm_devices));
576 MACHINE_START(AG5EVM, "ag5evm")
577 .map_io = sh73a0_map_io,
578 .init_early = sh73a0_add_early_devices,
579 .nr_irqs = NR_IRQS_LEGACY,
580 .init_irq = sh73a0_init_irq,
581 .handle_irq = gic_handle_irq,
582 .init_machine = ag5evm_init,
583 .timer = &shmobile_timer,
584 MACHINE_END