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/gpio/machine.h>
30 #include <linux/kernel.h>
31 #include <linux/init.h>
32 #include <linux/platform_device.h>
33 #include <linux/interrupt.h>
34 #include <linux/irq.h>
35 #include <linux/i2c.h>
36 #include <linux/leds.h>
37 #include <linux/smc91x.h>
38 #include <linux/omapfb.h>
39 #include <linux/mtd/mtd.h>
40 #include <linux/mtd/partitions.h>
41 #include <linux/mtd/physmap.h>
42 #include <linux/mfd/tps65010.h>
43 #include <linux/platform_data/gpio-omap.h>
44 #include <linux/platform_data/omap1_bl.h>
46 #include <asm/mach-types.h>
47 #include <asm/mach/arch.h>
48 #include <asm/mach/map.h>
54 #include <mach/hardware.h>
59 /* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */
60 #define OMAP_GPIO_LABEL "gpio-0-15"
62 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
63 #define OMAP_OSK_ETHR_START 0x04800300
65 /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with
66 * alternate pin configurations for hardware-controlled blinking.
68 #define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
69 # define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0)
70 # define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1)
71 # define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2)
72 # define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3)
73 # define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4)
74 # define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5)
76 static struct mtd_partition osk_partitions
[] = {
77 /* bootloader (U-Boot, etc) in first sector */
82 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
84 /* bootloader params in the next sector */
87 .offset
= MTDPART_OFS_APPEND
,
92 .offset
= MTDPART_OFS_APPEND
,
97 .offset
= MTDPART_OFS_APPEND
,
98 .size
= MTDPART_SIZ_FULL
,
103 static struct physmap_flash_data osk_flash_data
= {
105 .set_vpp
= omap1_set_vpp
,
106 .parts
= osk_partitions
,
107 .nr_parts
= ARRAY_SIZE(osk_partitions
),
110 static struct resource osk_flash_resource
= {
111 /* this is on CS3, wherever it's mapped */
112 .flags
= IORESOURCE_MEM
,
115 static struct platform_device osk5912_flash_device
= {
116 .name
= "physmap-flash",
119 .platform_data
= &osk_flash_data
,
122 .resource
= &osk_flash_resource
,
125 static struct smc91x_platdata osk5912_smc91x_info
= {
126 .flags
= SMC91X_USE_16BIT
| SMC91X_NOWAIT
,
127 .leda
= RPC_LED_100_10
,
128 .ledb
= RPC_LED_TX_RX
,
131 static struct resource osk5912_smc91x_resources
[] = {
133 .start
= OMAP_OSK_ETHR_START
, /* Physical */
134 .end
= OMAP_OSK_ETHR_START
+ 0xf,
135 .flags
= IORESOURCE_MEM
,
138 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE
,
142 static struct platform_device osk5912_smc91x_device
= {
146 .platform_data
= &osk5912_smc91x_info
,
148 .num_resources
= ARRAY_SIZE(osk5912_smc91x_resources
),
149 .resource
= osk5912_smc91x_resources
,
152 static struct resource osk5912_cf_resources
[] = {
154 .flags
= IORESOURCE_IRQ
,
158 static struct platform_device osk5912_cf_device
= {
162 .platform_data
= (void *) 2 /* CS2 */,
164 .num_resources
= ARRAY_SIZE(osk5912_cf_resources
),
165 .resource
= osk5912_cf_resources
,
168 static struct platform_device
*osk5912_devices
[] __initdata
= {
169 &osk5912_flash_device
,
170 &osk5912_smc91x_device
,
174 static const struct gpio_led tps_leds
[] = {
175 /* NOTE: D9 and D2 have hardware blink support.
176 * Also, D9 requires non-battery power.
178 { .gpio
= OSK_TPS_GPIO_LED_D9
, .name
= "d9",
179 .default_trigger
= "disk-activity", },
180 { .gpio
= OSK_TPS_GPIO_LED_D2
, .name
= "d2", },
181 { .gpio
= OSK_TPS_GPIO_LED_D3
, .name
= "d3", .active_low
= 1,
182 .default_trigger
= "heartbeat", },
185 static struct gpio_led_platform_data tps_leds_data
= {
190 static struct platform_device osk5912_tps_leds
= {
193 .dev
.platform_data
= &tps_leds_data
,
196 static int osk_tps_setup(struct i2c_client
*client
, void *context
)
198 if (!IS_BUILTIN(CONFIG_TPS65010
))
201 /* Set GPIO 1 HIGH to disable VBUS power supply;
202 * OHCI driver powers it up/down as needed.
204 gpio_request(OSK_TPS_GPIO_USB_PWR_EN
, "n_vbus_en");
205 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN
, 1);
207 /* Set GPIO 2 high so LED D3 is off by default */
208 tps65010_set_gpio_out_value(GPIO2
, HIGH
);
210 /* Set GPIO 3 low to take ethernet out of reset */
211 gpio_request(OSK_TPS_GPIO_LAN_RESET
, "smc_reset");
212 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET
, 0);
214 /* GPIO4 is VDD_DSP */
215 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN
, "dsp_power");
216 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN
, 1);
217 /* REVISIT if DSP support isn't configured, power it off ... */
219 /* Let LED1 (D9) blink; leds-gpio may override it */
220 tps65010_set_led(LED1
, BLINK
);
222 /* Set LED2 off by default */
223 tps65010_set_led(LED2
, OFF
);
225 /* Enable LOW_PWR handshake */
226 tps65010_set_low_pwr(ON
);
228 /* Switch VLDO2 to 3.0V for AIC23 */
229 tps65010_config_vregs1(TPS_LDO2_ENABLE
| TPS_VLDO2_3_0V
232 /* register these three LEDs */
233 osk5912_tps_leds
.dev
.parent
= &client
->dev
;
234 platform_device_register(&osk5912_tps_leds
);
239 static struct tps65010_board tps_board
= {
240 .base
= OSK_TPS_GPIO_BASE
,
242 .setup
= osk_tps_setup
,
245 static struct i2c_board_info __initdata osk_i2c_board_info
[] = {
247 /* This device will get the name "i2c-tps65010" */
248 I2C_BOARD_INFO("tps65010", 0x48),
249 .dev_name
= "tps65010",
250 .platform_data
= &tps_board
,
254 I2C_BOARD_INFO("tlv320aic23", 0x1B),
256 /* TODO when driver support is ready:
257 * - optionally on Mistral, ov9640 camera sensor at 0x30
261 static void __init
osk_init_smc91x(void)
265 if ((gpio_request(0, "smc_irq")) < 0) {
266 printk("Error requesting gpio 0 for smc91x irq\n");
270 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
271 l
= omap_readl(EMIFS_CCS(1));
273 omap_writel(l
, EMIFS_CCS(1));
276 static void __init
osk_init_cf(void)
278 omap_cfg_reg(M7_1610_GPIO62
);
279 if ((gpio_request(62, "cf_irq")) < 0) {
280 printk("Error requesting gpio 62 for CF irq\n");
283 /* the CF I/O IRQ is really active-low */
284 irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING
);
287 static struct gpiod_lookup_table osk_usb_gpio_table
= {
290 /* Power GPIO on the I2C-attached TPS65010 */
291 GPIO_LOOKUP("tps65010", 0, "power", GPIO_ACTIVE_HIGH
),
292 GPIO_LOOKUP(OMAP_GPIO_LABEL
, 9, "overcurrent",
297 static struct omap_usb_config osk_usb_config __initdata
= {
298 /* has usb host connector (A) ... for development it can also
299 * be used, with a NONSTANDARD gender-bending cable/dongle, as
302 #if IS_ENABLED(CONFIG_USB_OMAP)
313 #ifdef CONFIG_OMAP_OSK_MISTRAL
314 static const struct omap_lcd_config osk_lcd_config __initconst
= {
315 .ctrl_name
= "internal",
319 #ifdef CONFIG_OMAP_OSK_MISTRAL
321 #include <linux/input.h>
322 #include <linux/property.h>
323 #include <linux/spi/spi.h>
324 #include <linux/spi/ads7846.h>
326 #include <linux/platform_data/keypad-omap.h>
328 static const struct property_entry mistral_at24_properties
[] = {
329 PROPERTY_ENTRY_U32("pagesize", 16),
333 static struct i2c_board_info __initdata mistral_i2c_board_info
[] = {
335 /* NOTE: powered from LCD supply */
336 I2C_BOARD_INFO("24c04", 0x50),
337 .properties
= mistral_at24_properties
,
339 /* TODO when driver support is ready:
340 * - optionally ov9640 camera sensor at 0x30
344 static const unsigned int osk_keymap
[] = {
345 /* KEY(col, row, code) */
346 KEY(0, 0, KEY_F1
), /* SW4 */
347 KEY(3, 0, KEY_UP
), /* (sw2/up) */
348 KEY(1, 1, KEY_LEFTCTRL
), /* SW5 */
349 KEY(2, 1, KEY_LEFT
), /* (sw2/left) */
350 KEY(0, 2, KEY_SPACE
), /* SW3 */
351 KEY(1, 2, KEY_ESC
), /* SW6 */
352 KEY(2, 2, KEY_DOWN
), /* (sw2/down) */
353 KEY(2, 3, KEY_ENTER
), /* (sw2/select) */
354 KEY(3, 3, KEY_RIGHT
), /* (sw2/right) */
357 static const struct matrix_keymap_data osk_keymap_data
= {
358 .keymap
= osk_keymap
,
359 .keymap_size
= ARRAY_SIZE(osk_keymap
),
362 static struct omap_kp_platform_data osk_kp_data
= {
365 .keymap_data
= &osk_keymap_data
,
369 static struct resource osk5912_kp_resources
[] = {
371 .start
= INT_KEYBOARD
,
373 .flags
= IORESOURCE_IRQ
,
377 static struct platform_device osk5912_kp_device
= {
378 .name
= "omap-keypad",
381 .platform_data
= &osk_kp_data
,
383 .num_resources
= ARRAY_SIZE(osk5912_kp_resources
),
384 .resource
= osk5912_kp_resources
,
387 static struct omap_backlight_config mistral_bl_data
= {
388 .default_intensity
= 0xa0,
391 static struct platform_device mistral_bl_device
= {
395 .platform_data
= &mistral_bl_data
,
399 static struct platform_device osk5912_lcd_device
= {
404 static const struct gpio_led mistral_gpio_led_pins
[] = {
406 .name
= "mistral:red",
407 .default_trigger
= "heartbeat",
411 .name
= "mistral:green",
412 .default_trigger
= "cpu0",
413 .gpio
= OMAP_MPUIO(4),
417 static struct gpio_led_platform_data mistral_gpio_led_data
= {
418 .leds
= mistral_gpio_led_pins
,
419 .num_leds
= ARRAY_SIZE(mistral_gpio_led_pins
),
422 static struct platform_device mistral_gpio_leds
= {
426 .platform_data
= &mistral_gpio_led_data
,
430 static struct platform_device
*mistral_devices
[] __initdata
= {
437 static int mistral_get_pendown_state(void)
439 return !gpio_get_value(4);
442 static const struct ads7846_platform_data mistral_ts_info
= {
444 .vref_delay_usecs
= 100, /* internal, no capacitor */
447 .get_pendown_state
= mistral_get_pendown_state
,
450 static struct spi_board_info __initdata mistral_boardinfo
[] = { {
451 /* MicroWire (bus 2) CS0 has an ads7846e */
452 .modalias
= "ads7846",
453 .platform_data
= &mistral_ts_info
,
454 .max_speed_hz
= 120000 /* max sample rate at 3V */
455 * 26 /* command + data + overhead */,
461 osk_mistral_wake_interrupt(int irq
, void *ignored
)
466 static void __init
osk_mistral_init(void)
468 /* NOTE: we could actually tell if there's a Mistral board
469 * attached, e.g. by trying to read something from the ads7846.
470 * But this arch_init() code is too early for that, since we
471 * can't talk to the ads or even the i2c eeprom.
474 /* parallel camera interface */
475 omap_cfg_reg(J15_1610_CAM_LCLK
);
476 omap_cfg_reg(J18_1610_CAM_D7
);
477 omap_cfg_reg(J19_1610_CAM_D6
);
478 omap_cfg_reg(J14_1610_CAM_D5
);
479 omap_cfg_reg(K18_1610_CAM_D4
);
480 omap_cfg_reg(K19_1610_CAM_D3
);
481 omap_cfg_reg(K15_1610_CAM_D2
);
482 omap_cfg_reg(K14_1610_CAM_D1
);
483 omap_cfg_reg(L19_1610_CAM_D0
);
484 omap_cfg_reg(L18_1610_CAM_VS
);
485 omap_cfg_reg(L15_1610_CAM_HS
);
486 omap_cfg_reg(M19_1610_CAM_RSTZ
);
487 omap_cfg_reg(Y15_1610_CAM_OUTCLK
);
489 /* serial camera interface */
490 omap_cfg_reg(H19_1610_CAM_EXCLK
);
491 omap_cfg_reg(W13_1610_CCP_CLKM
);
492 omap_cfg_reg(Y12_1610_CCP_CLKP
);
493 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
494 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
495 omap_cfg_reg(W14_1610_CCP_DATAP
);
498 if (gpio_request(11, "cam_pwdn") == 0) {
499 omap_cfg_reg(N20_1610_GPIO11
);
500 gpio_direction_output(11, 0);
502 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
505 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
506 gpio_request(6, "ts_busy");
507 gpio_direction_input(6);
509 omap_cfg_reg(P20_1610_GPIO4
); /* PENIRQ */
510 gpio_request(4, "ts_int");
511 gpio_direction_input(4);
512 irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING
);
514 mistral_boardinfo
[0].irq
= gpio_to_irq(4);
515 spi_register_board_info(mistral_boardinfo
,
516 ARRAY_SIZE(mistral_boardinfo
));
518 /* the sideways button (SW1) is for use as a "wakeup" button
520 * NOTE: The Mistral board has the wakeup button (SW1) wired
521 * to the LCD 3.3V rail, which is powered down during suspend.
522 * To allow this button to wake up the omap, work around this
523 * HW bug by rewiring SW1 to use the main 3.3V rail.
525 omap_cfg_reg(N15_1610_MPUIO2
);
526 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
528 int irq
= gpio_to_irq(OMAP_MPUIO(2));
530 gpio_direction_input(OMAP_MPUIO(2));
531 irq_set_irq_type(irq
, IRQ_TYPE_EDGE_RISING
);
532 /* share the IRQ in case someone wants to use the
533 * button for more than wakeup from system sleep.
535 ret
= request_irq(irq
,
536 &osk_mistral_wake_interrupt
,
537 IRQF_SHARED
, "mistral_wakeup",
538 &osk_mistral_wake_interrupt
);
540 gpio_free(OMAP_MPUIO(2));
541 printk(KERN_ERR
"OSK+Mistral: no wakeup irq, %d?\n",
544 enable_irq_wake(irq
);
546 printk(KERN_ERR
"OSK+Mistral: wakeup button is awol\n");
548 /* LCD: backlight, and power; power controls other devices on the
549 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
552 if (gpio_request(2, "lcd_pwr") == 0)
553 gpio_direction_output(2, 1);
558 omap_cfg_reg(P18_1610_GPIO3
);
559 omap_cfg_reg(MPUIO4
);
561 i2c_register_board_info(1, mistral_i2c_board_info
,
562 ARRAY_SIZE(mistral_i2c_board_info
));
564 platform_add_devices(mistral_devices
, ARRAY_SIZE(mistral_devices
));
567 static void __init
osk_mistral_init(void) { }
570 #define EMIFS_CS3_VAL (0x88013141)
572 static void __init
osk_init(void)
579 /* Workaround for wrong CS3 (NOR flash) timing
580 * There are some U-Boot versions out there which configure
581 * wrong CS3 memory timings. This mainly leads to CRC
582 * or similar errors if you use NOR flash (e.g. with JFFS2)
584 l
= omap_readl(EMIFS_CCS(3));
585 if (l
!= EMIFS_CS3_VAL
)
586 omap_writel(EMIFS_CS3_VAL
, EMIFS_CCS(3));
588 osk_flash_resource
.end
= osk_flash_resource
.start
= omap_cs3_phys();
589 osk_flash_resource
.end
+= SZ_32M
- 1;
590 osk5912_smc91x_resources
[1].start
= gpio_to_irq(0);
591 osk5912_smc91x_resources
[1].end
= gpio_to_irq(0);
592 osk5912_cf_resources
[0].start
= gpio_to_irq(62);
593 osk5912_cf_resources
[0].end
= gpio_to_irq(62);
594 platform_add_devices(osk5912_devices
, ARRAY_SIZE(osk5912_devices
));
596 l
= omap_readl(USB_TRANSCEIVER_CTRL
);
598 omap_writel(l
, USB_TRANSCEIVER_CTRL
);
600 gpiod_add_lookup_table(&osk_usb_gpio_table
);
601 omap1_usb_init(&osk_usb_config
);
603 /* irq for tps65010 chip */
604 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
605 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
606 gpio_direction_input(OMAP_MPUIO(1));
609 osk_i2c_board_info
[0].irq
= gpio_to_irq(OMAP_MPUIO(1));
610 omap_register_i2c_bus(1, 400, osk_i2c_board_info
,
611 ARRAY_SIZE(osk_i2c_board_info
));
614 #ifdef CONFIG_OMAP_OSK_MISTRAL
615 omapfb_set_lcd_config(&osk_lcd_config
);
620 MACHINE_START(OMAP_OSK
, "TI-OSK")
621 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
622 .atag_offset
= 0x100,
623 .map_io
= omap16xx_map_io
,
624 .init_early
= omap1_init_early
,
625 .init_irq
= omap1_init_irq
,
626 .handle_irq
= omap1_handle_irq
,
627 .init_machine
= osk_init
,
628 .init_late
= omap1_init_late
,
629 .init_time
= omap1_timer_init
,
630 .restart
= omap1_restart
,