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.
28 #include <linux/gpio.h>
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>
36 #include <linux/smc91x.h>
37 #include <linux/omapfb.h>
38 #include <linux/mtd/mtd.h>
39 #include <linux/mtd/partitions.h>
40 #include <linux/mtd/physmap.h>
41 #include <linux/mfd/tps65010.h>
42 #include <linux/platform_data/gpio-omap.h>
43 #include <linux/platform_data/omap1_bl.h>
45 #include <asm/mach-types.h>
46 #include <asm/mach/arch.h>
47 #include <asm/mach/map.h>
53 #include <mach/hardware.h>
58 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
59 #define OMAP_OSK_ETHR_START 0x04800300
61 /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with
62 * alternate pin configurations for hardware-controlled blinking.
64 #define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
65 # define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0)
66 # define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1)
67 # define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2)
68 # define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3)
69 # define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4)
70 # define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5)
72 static struct mtd_partition osk_partitions
[] = {
73 /* bootloader (U-Boot, etc) in first sector */
78 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
80 /* bootloader params in the next sector */
83 .offset
= MTDPART_OFS_APPEND
,
88 .offset
= MTDPART_OFS_APPEND
,
93 .offset
= MTDPART_OFS_APPEND
,
94 .size
= MTDPART_SIZ_FULL
,
99 static struct physmap_flash_data osk_flash_data
= {
101 .set_vpp
= omap1_set_vpp
,
102 .parts
= osk_partitions
,
103 .nr_parts
= ARRAY_SIZE(osk_partitions
),
106 static struct resource osk_flash_resource
= {
107 /* this is on CS3, wherever it's mapped */
108 .flags
= IORESOURCE_MEM
,
111 static struct platform_device osk5912_flash_device
= {
112 .name
= "physmap-flash",
115 .platform_data
= &osk_flash_data
,
118 .resource
= &osk_flash_resource
,
121 static struct smc91x_platdata osk5912_smc91x_info
= {
122 .flags
= SMC91X_USE_16BIT
| SMC91X_NOWAIT
,
123 .leda
= RPC_LED_100_10
,
124 .ledb
= RPC_LED_TX_RX
,
127 static struct resource osk5912_smc91x_resources
[] = {
129 .start
= OMAP_OSK_ETHR_START
, /* Physical */
130 .end
= OMAP_OSK_ETHR_START
+ 0xf,
131 .flags
= IORESOURCE_MEM
,
134 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE
,
138 static struct platform_device osk5912_smc91x_device
= {
142 .platform_data
= &osk5912_smc91x_info
,
144 .num_resources
= ARRAY_SIZE(osk5912_smc91x_resources
),
145 .resource
= osk5912_smc91x_resources
,
148 static struct resource osk5912_cf_resources
[] = {
150 .flags
= IORESOURCE_IRQ
,
154 static struct platform_device osk5912_cf_device
= {
158 .platform_data
= (void *) 2 /* CS2 */,
160 .num_resources
= ARRAY_SIZE(osk5912_cf_resources
),
161 .resource
= osk5912_cf_resources
,
164 static struct platform_device
*osk5912_devices
[] __initdata
= {
165 &osk5912_flash_device
,
166 &osk5912_smc91x_device
,
170 static const struct gpio_led tps_leds
[] = {
171 /* NOTE: D9 and D2 have hardware blink support.
172 * Also, D9 requires non-battery power.
174 { .gpio
= OSK_TPS_GPIO_LED_D9
, .name
= "d9",
175 .default_trigger
= "disk-activity", },
176 { .gpio
= OSK_TPS_GPIO_LED_D2
, .name
= "d2", },
177 { .gpio
= OSK_TPS_GPIO_LED_D3
, .name
= "d3", .active_low
= 1,
178 .default_trigger
= "heartbeat", },
181 static struct gpio_led_platform_data tps_leds_data
= {
186 static struct platform_device osk5912_tps_leds
= {
189 .dev
.platform_data
= &tps_leds_data
,
192 static int osk_tps_setup(struct i2c_client
*client
, void *context
)
194 if (!IS_BUILTIN(CONFIG_TPS65010
))
197 /* Set GPIO 1 HIGH to disable VBUS power supply;
198 * OHCI driver powers it up/down as needed.
200 gpio_request(OSK_TPS_GPIO_USB_PWR_EN
, "n_vbus_en");
201 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN
, 1);
203 /* Set GPIO 2 high so LED D3 is off by default */
204 tps65010_set_gpio_out_value(GPIO2
, HIGH
);
206 /* Set GPIO 3 low to take ethernet out of reset */
207 gpio_request(OSK_TPS_GPIO_LAN_RESET
, "smc_reset");
208 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET
, 0);
210 /* GPIO4 is VDD_DSP */
211 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN
, "dsp_power");
212 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN
, 1);
213 /* REVISIT if DSP support isn't configured, power it off ... */
215 /* Let LED1 (D9) blink; leds-gpio may override it */
216 tps65010_set_led(LED1
, BLINK
);
218 /* Set LED2 off by default */
219 tps65010_set_led(LED2
, OFF
);
221 /* Enable LOW_PWR handshake */
222 tps65010_set_low_pwr(ON
);
224 /* Switch VLDO2 to 3.0V for AIC23 */
225 tps65010_config_vregs1(TPS_LDO2_ENABLE
| TPS_VLDO2_3_0V
228 /* register these three LEDs */
229 osk5912_tps_leds
.dev
.parent
= &client
->dev
;
230 platform_device_register(&osk5912_tps_leds
);
235 static struct tps65010_board tps_board
= {
236 .base
= OSK_TPS_GPIO_BASE
,
238 .setup
= osk_tps_setup
,
241 static struct i2c_board_info __initdata osk_i2c_board_info
[] = {
243 I2C_BOARD_INFO("tps65010", 0x48),
244 .platform_data
= &tps_board
,
248 I2C_BOARD_INFO("tlv320aic23", 0x1B),
250 /* TODO when driver support is ready:
251 * - optionally on Mistral, ov9640 camera sensor at 0x30
255 static void __init
osk_init_smc91x(void)
259 if ((gpio_request(0, "smc_irq")) < 0) {
260 printk("Error requesting gpio 0 for smc91x irq\n");
264 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
265 l
= omap_readl(EMIFS_CCS(1));
267 omap_writel(l
, EMIFS_CCS(1));
270 static void __init
osk_init_cf(void)
272 omap_cfg_reg(M7_1610_GPIO62
);
273 if ((gpio_request(62, "cf_irq")) < 0) {
274 printk("Error requesting gpio 62 for CF irq\n");
277 /* the CF I/O IRQ is really active-low */
278 irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING
);
281 static struct omap_usb_config osk_usb_config __initdata
= {
282 /* has usb host connector (A) ... for development it can also
283 * be used, with a NONSTANDARD gender-bending cable/dongle, as
286 #if IS_ENABLED(CONFIG_USB_OMAP)
297 #ifdef CONFIG_OMAP_OSK_MISTRAL
298 static const struct omap_lcd_config osk_lcd_config __initconst
= {
299 .ctrl_name
= "internal",
303 #ifdef CONFIG_OMAP_OSK_MISTRAL
305 #include <linux/input.h>
306 #include <linux/property.h>
307 #include <linux/spi/spi.h>
308 #include <linux/spi/ads7846.h>
310 #include <linux/platform_data/keypad-omap.h>
312 static const struct property_entry mistral_at24_properties
[] = {
313 PROPERTY_ENTRY_U32("pagesize", 16),
317 static struct i2c_board_info __initdata mistral_i2c_board_info
[] = {
319 /* NOTE: powered from LCD supply */
320 I2C_BOARD_INFO("24c04", 0x50),
321 .properties
= mistral_at24_properties
,
323 /* TODO when driver support is ready:
324 * - optionally ov9640 camera sensor at 0x30
328 static const unsigned int osk_keymap
[] = {
329 /* KEY(col, row, code) */
330 KEY(0, 0, KEY_F1
), /* SW4 */
331 KEY(3, 0, KEY_UP
), /* (sw2/up) */
332 KEY(1, 1, KEY_LEFTCTRL
), /* SW5 */
333 KEY(2, 1, KEY_LEFT
), /* (sw2/left) */
334 KEY(0, 2, KEY_SPACE
), /* SW3 */
335 KEY(1, 2, KEY_ESC
), /* SW6 */
336 KEY(2, 2, KEY_DOWN
), /* (sw2/down) */
337 KEY(2, 3, KEY_ENTER
), /* (sw2/select) */
338 KEY(3, 3, KEY_RIGHT
), /* (sw2/right) */
341 static const struct matrix_keymap_data osk_keymap_data
= {
342 .keymap
= osk_keymap
,
343 .keymap_size
= ARRAY_SIZE(osk_keymap
),
346 static struct omap_kp_platform_data osk_kp_data
= {
349 .keymap_data
= &osk_keymap_data
,
353 static struct resource osk5912_kp_resources
[] = {
355 .start
= INT_KEYBOARD
,
357 .flags
= IORESOURCE_IRQ
,
361 static struct platform_device osk5912_kp_device
= {
362 .name
= "omap-keypad",
365 .platform_data
= &osk_kp_data
,
367 .num_resources
= ARRAY_SIZE(osk5912_kp_resources
),
368 .resource
= osk5912_kp_resources
,
371 static struct omap_backlight_config mistral_bl_data
= {
372 .default_intensity
= 0xa0,
375 static struct platform_device mistral_bl_device
= {
379 .platform_data
= &mistral_bl_data
,
383 static struct platform_device osk5912_lcd_device
= {
388 static const struct gpio_led mistral_gpio_led_pins
[] = {
390 .name
= "mistral:red",
391 .default_trigger
= "heartbeat",
395 .name
= "mistral:green",
396 .default_trigger
= "cpu0",
397 .gpio
= OMAP_MPUIO(4),
401 static struct gpio_led_platform_data mistral_gpio_led_data
= {
402 .leds
= mistral_gpio_led_pins
,
403 .num_leds
= ARRAY_SIZE(mistral_gpio_led_pins
),
406 static struct platform_device mistral_gpio_leds
= {
410 .platform_data
= &mistral_gpio_led_data
,
414 static struct platform_device
*mistral_devices
[] __initdata
= {
421 static int mistral_get_pendown_state(void)
423 return !gpio_get_value(4);
426 static const struct ads7846_platform_data mistral_ts_info
= {
428 .vref_delay_usecs
= 100, /* internal, no capacitor */
431 .get_pendown_state
= mistral_get_pendown_state
,
434 static struct spi_board_info __initdata mistral_boardinfo
[] = { {
435 /* MicroWire (bus 2) CS0 has an ads7846e */
436 .modalias
= "ads7846",
437 .platform_data
= &mistral_ts_info
,
438 .max_speed_hz
= 120000 /* max sample rate at 3V */
439 * 26 /* command + data + overhead */,
445 osk_mistral_wake_interrupt(int irq
, void *ignored
)
450 static void __init
osk_mistral_init(void)
452 /* NOTE: we could actually tell if there's a Mistral board
453 * attached, e.g. by trying to read something from the ads7846.
454 * But this arch_init() code is too early for that, since we
455 * can't talk to the ads or even the i2c eeprom.
458 /* parallel camera interface */
459 omap_cfg_reg(J15_1610_CAM_LCLK
);
460 omap_cfg_reg(J18_1610_CAM_D7
);
461 omap_cfg_reg(J19_1610_CAM_D6
);
462 omap_cfg_reg(J14_1610_CAM_D5
);
463 omap_cfg_reg(K18_1610_CAM_D4
);
464 omap_cfg_reg(K19_1610_CAM_D3
);
465 omap_cfg_reg(K15_1610_CAM_D2
);
466 omap_cfg_reg(K14_1610_CAM_D1
);
467 omap_cfg_reg(L19_1610_CAM_D0
);
468 omap_cfg_reg(L18_1610_CAM_VS
);
469 omap_cfg_reg(L15_1610_CAM_HS
);
470 omap_cfg_reg(M19_1610_CAM_RSTZ
);
471 omap_cfg_reg(Y15_1610_CAM_OUTCLK
);
473 /* serial camera interface */
474 omap_cfg_reg(H19_1610_CAM_EXCLK
);
475 omap_cfg_reg(W13_1610_CCP_CLKM
);
476 omap_cfg_reg(Y12_1610_CCP_CLKP
);
477 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
478 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
479 omap_cfg_reg(W14_1610_CCP_DATAP
);
482 if (gpio_request(11, "cam_pwdn") == 0) {
483 omap_cfg_reg(N20_1610_GPIO11
);
484 gpio_direction_output(11, 0);
486 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
489 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
490 gpio_request(6, "ts_busy");
491 gpio_direction_input(6);
493 omap_cfg_reg(P20_1610_GPIO4
); /* PENIRQ */
494 gpio_request(4, "ts_int");
495 gpio_direction_input(4);
496 irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING
);
498 mistral_boardinfo
[0].irq
= gpio_to_irq(4);
499 spi_register_board_info(mistral_boardinfo
,
500 ARRAY_SIZE(mistral_boardinfo
));
502 /* the sideways button (SW1) is for use as a "wakeup" button
504 * NOTE: The Mistral board has the wakeup button (SW1) wired
505 * to the LCD 3.3V rail, which is powered down during suspend.
506 * To allow this button to wake up the omap, work around this
507 * HW bug by rewiring SW1 to use the main 3.3V rail.
509 omap_cfg_reg(N15_1610_MPUIO2
);
510 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
512 int irq
= gpio_to_irq(OMAP_MPUIO(2));
514 gpio_direction_input(OMAP_MPUIO(2));
515 irq_set_irq_type(irq
, IRQ_TYPE_EDGE_RISING
);
516 /* share the IRQ in case someone wants to use the
517 * button for more than wakeup from system sleep.
519 ret
= request_irq(irq
,
520 &osk_mistral_wake_interrupt
,
521 IRQF_SHARED
, "mistral_wakeup",
522 &osk_mistral_wake_interrupt
);
524 gpio_free(OMAP_MPUIO(2));
525 printk(KERN_ERR
"OSK+Mistral: no wakeup irq, %d?\n",
528 enable_irq_wake(irq
);
530 printk(KERN_ERR
"OSK+Mistral: wakeup button is awol\n");
532 /* LCD: backlight, and power; power controls other devices on the
533 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
536 if (gpio_request(2, "lcd_pwr") == 0)
537 gpio_direction_output(2, 1);
542 omap_cfg_reg(P18_1610_GPIO3
);
543 omap_cfg_reg(MPUIO4
);
545 i2c_register_board_info(1, mistral_i2c_board_info
,
546 ARRAY_SIZE(mistral_i2c_board_info
));
548 platform_add_devices(mistral_devices
, ARRAY_SIZE(mistral_devices
));
551 static void __init
osk_mistral_init(void) { }
554 #define EMIFS_CS3_VAL (0x88013141)
556 static void __init
osk_init(void)
563 /* Workaround for wrong CS3 (NOR flash) timing
564 * There are some U-Boot versions out there which configure
565 * wrong CS3 memory timings. This mainly leads to CRC
566 * or similar errors if you use NOR flash (e.g. with JFFS2)
568 l
= omap_readl(EMIFS_CCS(3));
569 if (l
!= EMIFS_CS3_VAL
)
570 omap_writel(EMIFS_CS3_VAL
, EMIFS_CCS(3));
572 osk_flash_resource
.end
= osk_flash_resource
.start
= omap_cs3_phys();
573 osk_flash_resource
.end
+= SZ_32M
- 1;
574 osk5912_smc91x_resources
[1].start
= gpio_to_irq(0);
575 osk5912_smc91x_resources
[1].end
= gpio_to_irq(0);
576 osk5912_cf_resources
[0].start
= gpio_to_irq(62);
577 osk5912_cf_resources
[0].end
= gpio_to_irq(62);
578 platform_add_devices(osk5912_devices
, ARRAY_SIZE(osk5912_devices
));
580 l
= omap_readl(USB_TRANSCEIVER_CTRL
);
582 omap_writel(l
, USB_TRANSCEIVER_CTRL
);
584 omap1_usb_init(&osk_usb_config
);
586 /* irq for tps65010 chip */
587 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
588 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
589 gpio_direction_input(OMAP_MPUIO(1));
592 osk_i2c_board_info
[0].irq
= gpio_to_irq(OMAP_MPUIO(1));
593 omap_register_i2c_bus(1, 400, osk_i2c_board_info
,
594 ARRAY_SIZE(osk_i2c_board_info
));
597 #ifdef CONFIG_OMAP_OSK_MISTRAL
598 omapfb_set_lcd_config(&osk_lcd_config
);
603 MACHINE_START(OMAP_OSK
, "TI-OSK")
604 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
605 .atag_offset
= 0x100,
606 .map_io
= omap16xx_map_io
,
607 .init_early
= omap1_init_early
,
608 .init_irq
= omap1_init_irq
,
609 .handle_irq
= omap1_handle_irq
,
610 .init_machine
= osk_init
,
611 .init_late
= omap1_init_late
,
612 .init_time
= omap1_timer_init
,
613 .restart
= omap1_restart
,