2 * linux/arch/arm/mach-omap1/board-osk.c
4 * Board specific init for OMAP5912 OSK
6 * Written by Dirk Behme <dirk.behme@de.bosch.com>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 675 Mass Ave, Cambridge, MA 02139, USA.
29 #include <linux/kernel.h>
30 #include <linux/init.h>
31 #include <linux/platform_device.h>
32 #include <linux/interrupt.h>
33 #include <linux/irq.h>
34 #include <linux/i2c.h>
35 #include <linux/leds.h>
37 #include <linux/mtd/mtd.h>
38 #include <linux/mtd/partitions.h>
40 #include <linux/i2c/tps65010.h>
42 #include <mach/hardware.h>
45 #include <asm/mach-types.h>
46 #include <asm/mach/arch.h>
47 #include <asm/mach/map.h>
48 #include <asm/mach/flash.h>
53 #include <plat/common.h>
55 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
56 #define OMAP_OSK_ETHR_START 0x04800300
58 /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with
59 * alternate pin configurations for hardware-controlled blinking.
61 #define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
62 # define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0)
63 # define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1)
64 # define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2)
65 # define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3)
66 # define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4)
67 # define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5)
69 static struct mtd_partition osk_partitions
[] = {
70 /* bootloader (U-Boot, etc) in first sector */
75 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
77 /* bootloader params in the next sector */
80 .offset
= MTDPART_OFS_APPEND
,
85 .offset
= MTDPART_OFS_APPEND
,
90 .offset
= MTDPART_OFS_APPEND
,
91 .size
= MTDPART_SIZ_FULL
,
96 static struct flash_platform_data osk_flash_data
= {
97 .map_name
= "cfi_probe",
99 .parts
= osk_partitions
,
100 .nr_parts
= ARRAY_SIZE(osk_partitions
),
103 static struct resource osk_flash_resource
= {
104 /* this is on CS3, wherever it's mapped */
105 .flags
= IORESOURCE_MEM
,
108 static struct platform_device osk5912_flash_device
= {
112 .platform_data
= &osk_flash_data
,
115 .resource
= &osk_flash_resource
,
118 static struct resource osk5912_smc91x_resources
[] = {
120 .start
= OMAP_OSK_ETHR_START
, /* Physical */
121 .end
= OMAP_OSK_ETHR_START
+ 0xf,
122 .flags
= IORESOURCE_MEM
,
125 .start
= OMAP_GPIO_IRQ(0),
126 .end
= OMAP_GPIO_IRQ(0),
127 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE
,
131 static struct platform_device osk5912_smc91x_device
= {
134 .num_resources
= ARRAY_SIZE(osk5912_smc91x_resources
),
135 .resource
= osk5912_smc91x_resources
,
138 static struct resource osk5912_cf_resources
[] = {
140 .start
= OMAP_GPIO_IRQ(62),
141 .end
= OMAP_GPIO_IRQ(62),
142 .flags
= IORESOURCE_IRQ
,
146 static struct platform_device osk5912_cf_device
= {
150 .platform_data
= (void *) 2 /* CS2 */,
152 .num_resources
= ARRAY_SIZE(osk5912_cf_resources
),
153 .resource
= osk5912_cf_resources
,
156 static struct platform_device
*osk5912_devices
[] __initdata
= {
157 &osk5912_flash_device
,
158 &osk5912_smc91x_device
,
162 static struct gpio_led tps_leds
[] = {
163 /* NOTE: D9 and D2 have hardware blink support.
164 * Also, D9 requires non-battery power.
166 { .gpio
= OSK_TPS_GPIO_LED_D9
, .name
= "d9",
167 .default_trigger
= "ide-disk", },
168 { .gpio
= OSK_TPS_GPIO_LED_D2
, .name
= "d2", },
169 { .gpio
= OSK_TPS_GPIO_LED_D3
, .name
= "d3", .active_low
= 1,
170 .default_trigger
= "heartbeat", },
173 static struct gpio_led_platform_data tps_leds_data
= {
178 static struct platform_device osk5912_tps_leds
= {
181 .dev
.platform_data
= &tps_leds_data
,
184 static int osk_tps_setup(struct i2c_client
*client
, void *context
)
186 /* Set GPIO 1 HIGH to disable VBUS power supply;
187 * OHCI driver powers it up/down as needed.
189 gpio_request(OSK_TPS_GPIO_USB_PWR_EN
, "n_vbus_en");
190 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN
, 1);
192 /* Set GPIO 2 high so LED D3 is off by default */
193 tps65010_set_gpio_out_value(GPIO2
, HIGH
);
195 /* Set GPIO 3 low to take ethernet out of reset */
196 gpio_request(OSK_TPS_GPIO_LAN_RESET
, "smc_reset");
197 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET
, 0);
199 /* GPIO4 is VDD_DSP */
200 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN
, "dsp_power");
201 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN
, 1);
202 /* REVISIT if DSP support isn't configured, power it off ... */
204 /* Let LED1 (D9) blink; leds-gpio may override it */
205 tps65010_set_led(LED1
, BLINK
);
207 /* Set LED2 off by default */
208 tps65010_set_led(LED2
, OFF
);
210 /* Enable LOW_PWR handshake */
211 tps65010_set_low_pwr(ON
);
213 /* Switch VLDO2 to 3.0V for AIC23 */
214 tps65010_config_vregs1(TPS_LDO2_ENABLE
| TPS_VLDO2_3_0V
217 /* register these three LEDs */
218 osk5912_tps_leds
.dev
.parent
= &client
->dev
;
219 platform_device_register(&osk5912_tps_leds
);
224 static struct tps65010_board tps_board
= {
225 .base
= OSK_TPS_GPIO_BASE
,
227 .setup
= osk_tps_setup
,
230 static struct i2c_board_info __initdata osk_i2c_board_info
[] = {
232 I2C_BOARD_INFO("tps65010", 0x48),
233 .irq
= OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
234 .platform_data
= &tps_board
,
238 I2C_BOARD_INFO("tlv320aic23", 0x1B),
240 /* TODO when driver support is ready:
241 * - optionally on Mistral, ov9640 camera sensor at 0x30
245 static void __init
osk_init_smc91x(void)
249 if ((gpio_request(0, "smc_irq")) < 0) {
250 printk("Error requesting gpio 0 for smc91x irq\n");
254 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
255 l
= omap_readl(EMIFS_CCS(1));
257 omap_writel(l
, EMIFS_CCS(1));
260 static void __init
osk_init_cf(void)
262 omap_cfg_reg(M7_1610_GPIO62
);
263 if ((gpio_request(62, "cf_irq")) < 0) {
264 printk("Error requesting gpio 62 for CF irq\n");
267 /* the CF I/O IRQ is really active-low */
268 set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING
);
271 static void __init
osk_init_irq(void)
273 omap1_init_common_hw();
280 static struct omap_usb_config osk_usb_config __initdata
= {
281 /* has usb host connector (A) ... for development it can also
282 * be used, with a NONSTANDARD gender-bending cable/dongle, as
285 #ifdef CONFIG_USB_GADGET_OMAP
296 #ifdef CONFIG_OMAP_OSK_MISTRAL
297 static struct omap_lcd_config osk_lcd_config __initdata
= {
298 .ctrl_name
= "internal",
302 static struct omap_board_config_kernel osk_config
[] __initdata
= {
303 #ifdef CONFIG_OMAP_OSK_MISTRAL
304 { OMAP_TAG_LCD
, &osk_lcd_config
},
308 #ifdef CONFIG_OMAP_OSK_MISTRAL
310 #include <linux/input.h>
311 #include <linux/i2c/at24.h>
312 #include <linux/spi/spi.h>
313 #include <linux/spi/ads7846.h>
315 #include <plat/keypad.h>
317 static struct at24_platform_data at24c04
= {
318 .byte_len
= SZ_4K
/ 8,
322 static struct i2c_board_info __initdata mistral_i2c_board_info
[] = {
324 /* NOTE: powered from LCD supply */
325 I2C_BOARD_INFO("24c04", 0x50),
326 .platform_data
= &at24c04
,
328 /* TODO when driver support is ready:
329 * - optionally ov9640 camera sensor at 0x30
333 static const int osk_keymap
[] = {
334 /* KEY(col, row, code) */
335 KEY(0, 0, KEY_F1
), /* SW4 */
336 KEY(0, 3, KEY_UP
), /* (sw2/up) */
337 KEY(1, 1, KEY_LEFTCTRL
), /* SW5 */
338 KEY(1, 2, KEY_LEFT
), /* (sw2/left) */
339 KEY(2, 0, KEY_SPACE
), /* SW3 */
340 KEY(2, 1, KEY_ESC
), /* SW6 */
341 KEY(2, 2, KEY_DOWN
), /* (sw2/down) */
342 KEY(3, 2, KEY_ENTER
), /* (sw2/select) */
343 KEY(3, 3, KEY_RIGHT
), /* (sw2/right) */
347 static struct omap_kp_platform_data osk_kp_data
= {
350 .keymap
= (int *) osk_keymap
,
351 .keymapsize
= ARRAY_SIZE(osk_keymap
),
355 static struct resource osk5912_kp_resources
[] = {
357 .start
= INT_KEYBOARD
,
359 .flags
= IORESOURCE_IRQ
,
363 static struct platform_device osk5912_kp_device
= {
364 .name
= "omap-keypad",
367 .platform_data
= &osk_kp_data
,
369 .num_resources
= ARRAY_SIZE(osk5912_kp_resources
),
370 .resource
= osk5912_kp_resources
,
373 static struct omap_backlight_config mistral_bl_data
= {
374 .default_intensity
= 0xa0,
377 static struct platform_device mistral_bl_device
= {
381 .platform_data
= &mistral_bl_data
,
385 static struct platform_device osk5912_lcd_device
= {
390 static struct platform_device
*mistral_devices
[] __initdata
= {
396 static int mistral_get_pendown_state(void)
398 return !gpio_get_value(4);
401 static const struct ads7846_platform_data mistral_ts_info
= {
403 .vref_delay_usecs
= 100, /* internal, no capacitor */
406 .get_pendown_state
= mistral_get_pendown_state
,
409 static struct spi_board_info __initdata mistral_boardinfo
[] = { {
410 /* MicroWire (bus 2) CS0 has an ads7846e */
411 .modalias
= "ads7846",
412 .platform_data
= &mistral_ts_info
,
413 .irq
= OMAP_GPIO_IRQ(4),
414 .max_speed_hz
= 120000 /* max sample rate at 3V */
415 * 26 /* command + data + overhead */,
422 osk_mistral_wake_interrupt(int irq
, void *ignored
)
428 static void __init
osk_mistral_init(void)
430 /* NOTE: we could actually tell if there's a Mistral board
431 * attached, e.g. by trying to read something from the ads7846.
432 * But this arch_init() code is too early for that, since we
433 * can't talk to the ads or even the i2c eeprom.
436 /* parallel camera interface */
437 omap_cfg_reg(J15_1610_CAM_LCLK
);
438 omap_cfg_reg(J18_1610_CAM_D7
);
439 omap_cfg_reg(J19_1610_CAM_D6
);
440 omap_cfg_reg(J14_1610_CAM_D5
);
441 omap_cfg_reg(K18_1610_CAM_D4
);
442 omap_cfg_reg(K19_1610_CAM_D3
);
443 omap_cfg_reg(K15_1610_CAM_D2
);
444 omap_cfg_reg(K14_1610_CAM_D1
);
445 omap_cfg_reg(L19_1610_CAM_D0
);
446 omap_cfg_reg(L18_1610_CAM_VS
);
447 omap_cfg_reg(L15_1610_CAM_HS
);
448 omap_cfg_reg(M19_1610_CAM_RSTZ
);
449 omap_cfg_reg(Y15_1610_CAM_OUTCLK
);
451 /* serial camera interface */
452 omap_cfg_reg(H19_1610_CAM_EXCLK
);
453 omap_cfg_reg(W13_1610_CCP_CLKM
);
454 omap_cfg_reg(Y12_1610_CCP_CLKP
);
455 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
456 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
457 omap_cfg_reg(W14_1610_CCP_DATAP
);
460 if (gpio_request(11, "cam_pwdn") == 0) {
461 omap_cfg_reg(N20_1610_GPIO11
);
462 gpio_direction_output(11, 0);
464 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
467 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
468 gpio_request(6, "ts_busy");
469 gpio_direction_input(6);
471 omap_cfg_reg(P20_1610_GPIO4
); /* PENIRQ */
472 gpio_request(4, "ts_int");
473 gpio_direction_input(4);
474 set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING
);
476 spi_register_board_info(mistral_boardinfo
,
477 ARRAY_SIZE(mistral_boardinfo
));
479 /* the sideways button (SW1) is for use as a "wakeup" button
481 * NOTE: The Mistral board has the wakeup button (SW1) wired
482 * to the LCD 3.3V rail, which is powered down during suspend.
483 * To allow this button to wake up the omap, work around this
484 * HW bug by rewiring SW1 to use the main 3.3V rail.
486 omap_cfg_reg(N15_1610_MPUIO2
);
487 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
489 int irq
= gpio_to_irq(OMAP_MPUIO(2));
491 gpio_direction_input(OMAP_MPUIO(2));
492 set_irq_type(irq
, IRQ_TYPE_EDGE_RISING
);
494 /* share the IRQ in case someone wants to use the
495 * button for more than wakeup from system sleep.
497 ret
= request_irq(irq
,
498 &osk_mistral_wake_interrupt
,
499 IRQF_SHARED
, "mistral_wakeup",
500 &osk_mistral_wake_interrupt
);
502 gpio_free(OMAP_MPUIO(2));
503 printk(KERN_ERR
"OSK+Mistral: no wakeup irq, %d?\n",
506 enable_irq_wake(irq
);
509 printk(KERN_ERR
"OSK+Mistral: wakeup button is awol\n");
511 /* LCD: backlight, and power; power controls other devices on the
512 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
515 if (gpio_request(2, "lcd_pwr") == 0)
516 gpio_direction_output(2, 1);
518 i2c_register_board_info(1, mistral_i2c_board_info
,
519 ARRAY_SIZE(mistral_i2c_board_info
));
521 platform_add_devices(mistral_devices
, ARRAY_SIZE(mistral_devices
));
524 static void __init
osk_mistral_init(void) { }
527 #define EMIFS_CS3_VAL (0x88013141)
529 static void __init
osk_init(void)
533 /* Workaround for wrong CS3 (NOR flash) timing
534 * There are some U-Boot versions out there which configure
535 * wrong CS3 memory timings. This mainly leads to CRC
536 * or similar errors if you use NOR flash (e.g. with JFFS2)
538 l
= omap_readl(EMIFS_CCS(3));
539 if (l
!= EMIFS_CS3_VAL
)
540 omap_writel(EMIFS_CS3_VAL
, EMIFS_CCS(3));
542 osk_flash_resource
.end
= osk_flash_resource
.start
= omap_cs3_phys();
543 osk_flash_resource
.end
+= SZ_32M
- 1;
544 platform_add_devices(osk5912_devices
, ARRAY_SIZE(osk5912_devices
));
545 omap_board_config
= osk_config
;
546 omap_board_config_size
= ARRAY_SIZE(osk_config
);
548 l
= omap_readl(USB_TRANSCEIVER_CTRL
);
550 omap_writel(l
, USB_TRANSCEIVER_CTRL
);
552 omap_usb_init(&osk_usb_config
);
554 /* irq for tps65010 chip */
555 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
556 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
557 gpio_direction_input(OMAP_MPUIO(1));
560 omap_register_i2c_bus(1, 400, osk_i2c_board_info
,
561 ARRAY_SIZE(osk_i2c_board_info
));
565 static void __init
osk_map_io(void)
567 omap1_map_common_io();
570 MACHINE_START(OMAP_OSK
, "TI-OSK")
571 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
572 .phys_io
= 0xfff00000,
573 .io_pg_offst
= ((0xfef00000) >> 18) & 0xfffc,
574 .boot_params
= 0x10000100,
575 .map_io
= osk_map_io
,
576 .init_irq
= osk_init_irq
,
577 .init_machine
= osk_init
,
578 .timer
= &omap_timer
,