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>
45 #include <linux/soc/ti/omap1-io.h>
47 #include <asm/mach-types.h>
48 #include <asm/mach/arch.h>
49 #include <asm/mach/map.h>
58 /* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */
59 #define OMAP_GPIO_LABEL "gpio-0-15"
61 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
62 #define OMAP_OSK_ETHR_START 0x04800300
64 /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with
65 * alternate pin configurations for hardware-controlled blinking.
67 #define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
68 # define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0)
69 # define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1)
70 # define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2)
71 # define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3)
72 # define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4)
73 # define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5)
75 static struct mtd_partition osk_partitions[] = {
76 /* bootloader (U-Boot, etc) in first sector */
81 .mask_flags = MTD_WRITEABLE, /* force read-only */
83 /* bootloader params in the next sector */
86 .offset = MTDPART_OFS_APPEND,
91 .offset = MTDPART_OFS_APPEND,
96 .offset = MTDPART_OFS_APPEND,
97 .size = MTDPART_SIZ_FULL,
102 static struct physmap_flash_data osk_flash_data = {
104 .set_vpp = omap1_set_vpp,
105 .parts = osk_partitions,
106 .nr_parts = ARRAY_SIZE(osk_partitions),
109 static struct resource osk_flash_resource = {
110 /* this is on CS3, wherever it's mapped */
111 .flags = IORESOURCE_MEM,
114 static struct platform_device osk5912_flash_device = {
115 .name = "physmap-flash",
118 .platform_data = &osk_flash_data,
121 .resource = &osk_flash_resource,
124 static struct smc91x_platdata osk5912_smc91x_info = {
125 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
126 .leda = RPC_LED_100_10,
127 .ledb = RPC_LED_TX_RX,
130 static struct resource osk5912_smc91x_resources[] = {
132 .start = OMAP_OSK_ETHR_START, /* Physical */
133 .end = OMAP_OSK_ETHR_START + 0xf,
134 .flags = IORESOURCE_MEM,
137 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
141 static struct platform_device osk5912_smc91x_device = {
145 .platform_data = &osk5912_smc91x_info,
147 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources),
148 .resource = osk5912_smc91x_resources,
151 static struct resource osk5912_cf_resources[] = {
153 .flags = IORESOURCE_IRQ,
156 .flags = IORESOURCE_MEM,
160 static struct platform_device osk5912_cf_device = {
163 .num_resources = ARRAY_SIZE(osk5912_cf_resources),
164 .resource = osk5912_cf_resources,
167 static struct platform_device *osk5912_devices[] __initdata = {
168 &osk5912_flash_device,
169 &osk5912_smc91x_device,
173 static const struct gpio_led tps_leds[] = {
174 /* NOTE: D9 and D2 have hardware blink support.
175 * Also, D9 requires non-battery power.
177 { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9",
178 .default_trigger = "disk-activity", },
179 { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
180 { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
181 .default_trigger = "heartbeat", },
184 static struct gpio_led_platform_data tps_leds_data = {
189 static struct platform_device osk5912_tps_leds = {
192 .dev.platform_data = &tps_leds_data,
195 static int osk_tps_setup(struct i2c_client *client, void *context)
197 if (!IS_BUILTIN(CONFIG_TPS65010))
200 /* Set GPIO 1 HIGH to disable VBUS power supply;
201 * OHCI driver powers it up/down as needed.
203 gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
204 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
205 /* Free the GPIO again as the driver will request it */
206 gpio_free(OSK_TPS_GPIO_USB_PWR_EN);
208 /* Set GPIO 2 high so LED D3 is off by default */
209 tps65010_set_gpio_out_value(GPIO2, HIGH);
211 /* Set GPIO 3 low to take ethernet out of reset */
212 gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
213 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
215 /* GPIO4 is VDD_DSP */
216 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
217 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
218 /* REVISIT if DSP support isn't configured, power it off ... */
220 /* Let LED1 (D9) blink; leds-gpio may override it */
221 tps65010_set_led(LED1, BLINK);
223 /* Set LED2 off by default */
224 tps65010_set_led(LED2, OFF);
226 /* Enable LOW_PWR handshake */
227 tps65010_set_low_pwr(ON);
229 /* Switch VLDO2 to 3.0V for AIC23 */
230 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
233 /* register these three LEDs */
234 osk5912_tps_leds.dev.parent = &client->dev;
235 platform_device_register(&osk5912_tps_leds);
240 static struct tps65010_board tps_board = {
241 .base = OSK_TPS_GPIO_BASE,
243 .setup = osk_tps_setup,
246 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
248 /* This device will get the name "i2c-tps65010" */
249 I2C_BOARD_INFO("tps65010", 0x48),
250 .dev_name = "tps65010",
251 .platform_data = &tps_board,
255 I2C_BOARD_INFO("tlv320aic23", 0x1B),
257 /* TODO when driver support is ready:
258 * - optionally on Mistral, ov9640 camera sensor at 0x30
262 static void __init osk_init_smc91x(void)
266 if ((gpio_request(0, "smc_irq")) < 0) {
267 printk("Error requesting gpio 0 for smc91x irq\n");
271 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
272 l = omap_readl(EMIFS_CCS(1));
274 omap_writel(l, EMIFS_CCS(1));
277 static void __init osk_init_cf(int seg)
279 struct resource *res = &osk5912_cf_resources[1];
281 omap_cfg_reg(M7_1610_GPIO62);
282 if ((gpio_request(62, "cf_irq")) < 0) {
283 printk("Error requesting gpio 62 for CF irq\n");
288 /* NOTE: CS0 could be configured too ... */
290 res->start = OMAP_CS1_PHYS;
293 res->start = OMAP_CS2_PHYS;
296 res->start = omap_cs3_phys();
300 res->end = res->start + SZ_8K - 1;
301 osk5912_cf_device.dev.platform_data = (void *)(uintptr_t)seg;
303 /* NOTE: better EMIFS setup might support more cards; but the
304 * TRM only shows how to affect regular flash signals, not their
305 * CF/PCMCIA variants...
307 pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", __func__,
308 seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg)));
309 omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */
310 omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */
312 /* the CF I/O IRQ is really active-low */
313 irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
316 static struct gpiod_lookup_table osk_usb_gpio_table = {
319 /* Power GPIO on the I2C-attached TPS65010 */
320 GPIO_LOOKUP("tps65010", 0, "power", GPIO_ACTIVE_HIGH),
321 GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent",
326 static struct omap_usb_config osk_usb_config __initdata = {
327 /* has usb host connector (A) ... for development it can also
328 * be used, with a NONSTANDARD gender-bending cable/dongle, as
331 #if IS_ENABLED(CONFIG_USB_OMAP)
342 #ifdef CONFIG_OMAP_OSK_MISTRAL
343 static const struct omap_lcd_config osk_lcd_config __initconst = {
344 .ctrl_name = "internal",
348 #ifdef CONFIG_OMAP_OSK_MISTRAL
350 #include <linux/input.h>
351 #include <linux/property.h>
352 #include <linux/spi/spi.h>
353 #include <linux/spi/ads7846.h>
355 #include <linux/platform_data/keypad-omap.h>
357 static const struct property_entry mistral_at24_properties[] = {
358 PROPERTY_ENTRY_U32("pagesize", 16),
362 static const struct software_node mistral_at24_node = {
363 .properties = mistral_at24_properties,
366 static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
368 /* NOTE: powered from LCD supply */
369 I2C_BOARD_INFO("24c04", 0x50),
370 .swnode = &mistral_at24_node,
372 /* TODO when driver support is ready:
373 * - optionally ov9640 camera sensor at 0x30
377 static const unsigned int osk_keymap[] = {
378 /* KEY(col, row, code) */
379 KEY(0, 0, KEY_F1), /* SW4 */
380 KEY(3, 0, KEY_UP), /* (sw2/up) */
381 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */
382 KEY(2, 1, KEY_LEFT), /* (sw2/left) */
383 KEY(0, 2, KEY_SPACE), /* SW3 */
384 KEY(1, 2, KEY_ESC), /* SW6 */
385 KEY(2, 2, KEY_DOWN), /* (sw2/down) */
386 KEY(2, 3, KEY_ENTER), /* (sw2/select) */
387 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */
390 static const struct matrix_keymap_data osk_keymap_data = {
391 .keymap = osk_keymap,
392 .keymap_size = ARRAY_SIZE(osk_keymap),
395 static struct omap_kp_platform_data osk_kp_data = {
398 .keymap_data = &osk_keymap_data,
402 static struct resource osk5912_kp_resources[] = {
404 .start = INT_KEYBOARD,
406 .flags = IORESOURCE_IRQ,
410 static struct platform_device osk5912_kp_device = {
411 .name = "omap-keypad",
414 .platform_data = &osk_kp_data,
416 .num_resources = ARRAY_SIZE(osk5912_kp_resources),
417 .resource = osk5912_kp_resources,
420 static struct omap_backlight_config mistral_bl_data = {
421 .default_intensity = 0xa0,
424 static struct platform_device mistral_bl_device = {
428 .platform_data = &mistral_bl_data,
432 static struct platform_device osk5912_lcd_device = {
437 static const struct gpio_led mistral_gpio_led_pins[] = {
439 .name = "mistral:red",
440 .default_trigger = "heartbeat",
444 .name = "mistral:green",
445 .default_trigger = "cpu0",
446 .gpio = OMAP_MPUIO(4),
450 static struct gpio_led_platform_data mistral_gpio_led_data = {
451 .leds = mistral_gpio_led_pins,
452 .num_leds = ARRAY_SIZE(mistral_gpio_led_pins),
455 static struct platform_device mistral_gpio_leds = {
459 .platform_data = &mistral_gpio_led_data,
463 static struct platform_device *mistral_devices[] __initdata = {
470 static int mistral_get_pendown_state(void)
472 return !gpio_get_value(4);
475 static const struct ads7846_platform_data mistral_ts_info = {
477 .vref_delay_usecs = 100, /* internal, no capacitor */
480 .get_pendown_state = mistral_get_pendown_state,
483 static struct spi_board_info __initdata mistral_boardinfo[] = { {
484 /* MicroWire (bus 2) CS0 has an ads7846e */
485 .modalias = "ads7846",
486 .platform_data = &mistral_ts_info,
487 .max_speed_hz = 120000 /* max sample rate at 3V */
488 * 26 /* command + data + overhead */,
494 osk_mistral_wake_interrupt(int irq, void *ignored)
499 static void __init osk_mistral_init(void)
501 /* NOTE: we could actually tell if there's a Mistral board
502 * attached, e.g. by trying to read something from the ads7846.
503 * But this arch_init() code is too early for that, since we
504 * can't talk to the ads or even the i2c eeprom.
507 /* parallel camera interface */
508 omap_cfg_reg(J15_1610_CAM_LCLK);
509 omap_cfg_reg(J18_1610_CAM_D7);
510 omap_cfg_reg(J19_1610_CAM_D6);
511 omap_cfg_reg(J14_1610_CAM_D5);
512 omap_cfg_reg(K18_1610_CAM_D4);
513 omap_cfg_reg(K19_1610_CAM_D3);
514 omap_cfg_reg(K15_1610_CAM_D2);
515 omap_cfg_reg(K14_1610_CAM_D1);
516 omap_cfg_reg(L19_1610_CAM_D0);
517 omap_cfg_reg(L18_1610_CAM_VS);
518 omap_cfg_reg(L15_1610_CAM_HS);
519 omap_cfg_reg(M19_1610_CAM_RSTZ);
520 omap_cfg_reg(Y15_1610_CAM_OUTCLK);
522 /* serial camera interface */
523 omap_cfg_reg(H19_1610_CAM_EXCLK);
524 omap_cfg_reg(W13_1610_CCP_CLKM);
525 omap_cfg_reg(Y12_1610_CCP_CLKP);
526 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
527 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
528 omap_cfg_reg(W14_1610_CCP_DATAP);
531 if (gpio_request(11, "cam_pwdn") == 0) {
532 omap_cfg_reg(N20_1610_GPIO11);
533 gpio_direction_output(11, 0);
535 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
538 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */
539 gpio_request(6, "ts_busy");
540 gpio_direction_input(6);
542 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */
543 gpio_request(4, "ts_int");
544 gpio_direction_input(4);
545 irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
547 mistral_boardinfo[0].irq = gpio_to_irq(4);
548 spi_register_board_info(mistral_boardinfo,
549 ARRAY_SIZE(mistral_boardinfo));
551 /* the sideways button (SW1) is for use as a "wakeup" button
553 * NOTE: The Mistral board has the wakeup button (SW1) wired
554 * to the LCD 3.3V rail, which is powered down during suspend.
555 * To allow this button to wake up the omap, work around this
556 * HW bug by rewiring SW1 to use the main 3.3V rail.
558 omap_cfg_reg(N15_1610_MPUIO2);
559 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
561 int irq = gpio_to_irq(OMAP_MPUIO(2));
563 gpio_direction_input(OMAP_MPUIO(2));
564 irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
565 /* share the IRQ in case someone wants to use the
566 * button for more than wakeup from system sleep.
568 ret = request_irq(irq,
569 &osk_mistral_wake_interrupt,
570 IRQF_SHARED, "mistral_wakeup",
571 &osk_mistral_wake_interrupt);
573 gpio_free(OMAP_MPUIO(2));
574 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
577 enable_irq_wake(irq);
579 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
581 /* LCD: backlight, and power; power controls other devices on the
582 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
585 if (gpio_request(2, "lcd_pwr") == 0)
586 gpio_direction_output(2, 1);
591 omap_cfg_reg(P18_1610_GPIO3);
592 omap_cfg_reg(MPUIO4);
594 i2c_register_board_info(1, mistral_i2c_board_info,
595 ARRAY_SIZE(mistral_i2c_board_info));
597 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
600 static void __init osk_mistral_init(void) { }
603 #define EMIFS_CS3_VAL (0x88013141)
605 static void __init osk_init(void)
610 osk_init_cf(2); /* CS2 */
612 /* Workaround for wrong CS3 (NOR flash) timing
613 * There are some U-Boot versions out there which configure
614 * wrong CS3 memory timings. This mainly leads to CRC
615 * or similar errors if you use NOR flash (e.g. with JFFS2)
617 l = omap_readl(EMIFS_CCS(3));
618 if (l != EMIFS_CS3_VAL)
619 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
621 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
622 osk_flash_resource.end += SZ_32M - 1;
623 osk5912_smc91x_resources[1].start = gpio_to_irq(0);
624 osk5912_smc91x_resources[1].end = gpio_to_irq(0);
625 osk5912_cf_resources[0].start = gpio_to_irq(62);
626 osk5912_cf_resources[0].end = gpio_to_irq(62);
627 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
629 l = omap_readl(USB_TRANSCEIVER_CTRL);
631 omap_writel(l, USB_TRANSCEIVER_CTRL);
633 gpiod_add_lookup_table(&osk_usb_gpio_table);
634 omap1_usb_init(&osk_usb_config);
636 /* irq for tps65010 chip */
637 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */
638 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
639 gpio_direction_input(OMAP_MPUIO(1));
642 osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1));
643 omap_register_i2c_bus(1, 400, osk_i2c_board_info,
644 ARRAY_SIZE(osk_i2c_board_info));
647 #ifdef CONFIG_OMAP_OSK_MISTRAL
648 omapfb_set_lcd_config(&osk_lcd_config);
653 MACHINE_START(OMAP_OSK, "TI-OSK")
654 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
655 .atag_offset = 0x100,
656 .map_io = omap16xx_map_io,
657 .init_early = omap1_init_early,
658 .init_irq = omap1_init_irq,
659 .handle_irq = omap1_handle_irq,
660 .init_machine = osk_init,
661 .init_late = omap1_init_late,
662 .init_time = omap1_timer_init,
663 .restart = omap1_restart,