2 * linux/arch/arm/mach-omap2/board-n8x0.c
4 * Copyright (C) 2005-2009 Nokia Corporation
5 * Author: Juha Yrjola <juha.yrjola@nokia.com>
7 * Modified from mach-omap2/board-generic.c
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 #include <linux/clk.h>
15 #include <linux/delay.h>
16 #include <linux/gpio.h>
17 #include <linux/init.h>
19 #include <linux/stddef.h>
20 #include <linux/i2c.h>
21 #include <linux/spi/spi.h>
22 #include <linux/usb/musb.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach-types.h>
27 #include <plat/board.h>
28 #include <plat/common.h>
29 #include <plat/menelaus.h>
30 #include <mach/irqs.h>
31 #include <plat/mcspi.h>
32 #include <plat/onenand.h>
34 #include <plat/serial.h>
38 static int slot1_cover_open;
39 static int slot2_cover_open;
40 static struct device *mmc_device;
42 #define TUSB6010_ASYNC_CS 1
43 #define TUSB6010_SYNC_CS 4
44 #define TUSB6010_GPIO_INT 58
45 #define TUSB6010_GPIO_ENABLE 0
46 #define TUSB6010_DMACHAN 0x3f
48 #if defined(CONFIG_USB_TUSB6010) || \
49 defined(CONFIG_USB_TUSB6010_MODULE)
51 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
52 * 1.5 V voltage regulators of PM companion chip. Companion chip will then
53 * provide then PGOOD signal to TUSB6010 which will release it from reset.
55 static int tusb_set_power(int state)
60 gpio_set_value(TUSB6010_GPIO_ENABLE, 1);
63 /* Wait until TUSB6010 pulls INT pin down */
65 while (i && gpio_get_value(TUSB6010_GPIO_INT)) {
71 printk(KERN_ERR "tusb: powerup failed\n");
75 gpio_set_value(TUSB6010_GPIO_ENABLE, 0);
82 static struct musb_hdrc_config musb_config = {
89 static struct musb_hdrc_platform_data tusb_data = {
90 #if defined(CONFIG_USB_MUSB_OTG)
92 #elif defined(CONFIG_USB_MUSB_PERIPHERAL)
93 .mode = MUSB_PERIPHERAL,
94 #else /* defined(CONFIG_USB_MUSB_HOST) */
97 .set_power = tusb_set_power,
98 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
99 .power = 100, /* Max 100 mA VBUS for host mode */
100 .config = &musb_config,
103 static void __init n8x0_usb_init(void)
106 static char announce[] __initdata = KERN_INFO "TUSB 6010\n";
108 /* PM companion chip power control pin */
109 ret = gpio_request(TUSB6010_GPIO_ENABLE, "TUSB6010 enable");
111 printk(KERN_ERR "Could not get TUSB power GPIO%i\n",
112 TUSB6010_GPIO_ENABLE);
115 gpio_direction_output(TUSB6010_GPIO_ENABLE, 0);
119 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2,
120 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS,
121 TUSB6010_GPIO_INT, TUSB6010_DMACHAN);
130 gpio_free(TUSB6010_GPIO_ENABLE);
134 static void __init n8x0_usb_init(void) {}
136 #endif /*CONFIG_USB_TUSB6010 */
139 static struct omap2_mcspi_device_config p54spi_mcspi_config = {
144 static struct spi_board_info n800_spi_board_info[] __initdata = {
146 .modalias = "p54spi",
149 .max_speed_hz = 48000000,
150 .controller_data = &p54spi_mcspi_config,
154 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
155 defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
157 static struct mtd_partition onenand_partitions[] = {
159 .name = "bootloader",
162 .mask_flags = MTD_WRITEABLE, /* Force read-only */
166 .offset = MTDPART_OFS_APPEND,
171 .offset = MTDPART_OFS_APPEND,
176 .offset = MTDPART_OFS_APPEND,
181 .offset = MTDPART_OFS_APPEND,
182 .size = MTDPART_SIZ_FULL,
186 static struct omap_onenand_platform_data board_onenand_data = {
189 .parts = onenand_partitions,
190 .nr_parts = ARRAY_SIZE(onenand_partitions),
191 .flags = ONENAND_SYNC_READ,
194 static void __init n8x0_onenand_init(void)
196 gpmc_onenand_init(&board_onenand_data);
201 static void __init n8x0_onenand_init(void) {}
205 #if defined(CONFIG_MENELAUS) && \
206 (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE))
209 * On both N800 and N810, only the first of the two MMC controllers is in use.
210 * The two MMC slots are multiplexed via Menelaus companion chip over I2C.
211 * On N800, both slots are powered via Menelaus. On N810, only one of the
212 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO.
214 * VMMC slot 1 on both N800 and N810
215 * VDCDC3_APE and VMCS2_APE slot 2 on N800
216 * GPIO23 and GPIO9 slot 2 EMMC on N810
219 #define N8X0_SLOT_SWITCH_GPIO 96
220 #define N810_EMMC_VSD_GPIO 23
221 #define N810_EMMC_VIO_GPIO 9
223 static int n8x0_mmc_switch_slot(struct device *dev, int slot)
225 #ifdef CONFIG_MMC_DEBUG
226 dev_dbg(dev, "Choose slot %d\n", slot + 1);
228 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot);
232 static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot,
233 int power_on, int vdd)
237 #ifdef CONFIG_MMC_DEBUG
238 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
239 power_on ? "on" : "off", vdd);
243 return menelaus_set_vmmc(0);
256 case MMC_VDD_165_195:
262 return menelaus_set_vmmc(mV);
265 return menelaus_set_vdcdc(3, 0);
290 case MMC_VDD_165_195:
296 return menelaus_set_vdcdc(3, mV);
301 static void n810_set_power_emmc(struct device *dev,
304 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off");
307 gpio_set_value(N810_EMMC_VSD_GPIO, 1);
309 gpio_set_value(N810_EMMC_VIO_GPIO, 1);
312 gpio_set_value(N810_EMMC_VIO_GPIO, 0);
314 gpio_set_value(N810_EMMC_VSD_GPIO, 0);
319 static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on,
322 if (machine_is_nokia_n800() || slot == 0)
323 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd);
325 n810_set_power_emmc(dev, power_on);
330 static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
334 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1,
335 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
336 BUG_ON(slot != 0 && slot != 1);
339 case MMC_BUSMODE_OPENDRAIN:
340 r = menelaus_set_mmc_opendrain(slot, 1);
342 case MMC_BUSMODE_PUSHPULL:
343 r = menelaus_set_mmc_opendrain(slot, 0);
348 if (r != 0 && printk_ratelimit())
349 dev_err(dev, "MMC: unable to set bus mode for slot %d\n",
354 static int n8x0_mmc_get_cover_state(struct device *dev, int slot)
357 BUG_ON(slot != 1 && slot != 2);
359 return slot1_cover_open;
361 return slot2_cover_open;
364 static void n8x0_mmc_callback(void *data, u8 card_mask)
366 int bit, *openp, index;
368 if (machine_is_nokia_n800()) {
370 openp = &slot2_cover_open;
374 openp = &slot1_cover_open;
383 omap_mmc_notify_cover_event(mmc_device, index, *openp);
386 void n8x0_mmc_slot1_cover_handler(void *arg, int closed_state)
388 if (mmc_device == NULL)
391 slot1_cover_open = !closed_state;
392 omap_mmc_notify_cover_event(mmc_device, 0, closed_state);
395 static int n8x0_mmc_late_init(struct device *dev)
402 r = menelaus_set_slot_sel(1);
406 if (machine_is_nokia_n800())
411 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1);
415 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */
416 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16);
418 r = menelaus_set_mmc_slot(1, 1, 0, 1);
421 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1);
425 r = menelaus_get_slot_pin_states();
429 if (machine_is_nokia_n800()) {
431 openp = &slot2_cover_open;
434 openp = &slot1_cover_open;
435 slot2_cover_open = 0;
438 /* All slot pin bits seem to be inversed until first switch change */
439 if (r == 0xf || r == (0xf & ~bit))
447 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL);
452 static void n8x0_mmc_shutdown(struct device *dev)
456 if (machine_is_nokia_n800())
461 menelaus_set_mmc_slot(1, 0, 0, 0);
462 menelaus_set_mmc_slot(2, 0, vs2sel, 0);
465 static void n8x0_mmc_cleanup(struct device *dev)
467 menelaus_unregister_mmc_callback();
469 gpio_free(N8X0_SLOT_SWITCH_GPIO);
471 if (machine_is_nokia_n810()) {
472 gpio_free(N810_EMMC_VSD_GPIO);
473 gpio_free(N810_EMMC_VIO_GPIO);
478 * MMC controller1 has two slots that are multiplexed via I2C.
479 * MMC controller2 is not in use.
481 static struct omap_mmc_platform_data mmc1_data = {
483 .switch_slot = n8x0_mmc_switch_slot,
484 .init = n8x0_mmc_late_init,
485 .cleanup = n8x0_mmc_cleanup,
486 .shutdown = n8x0_mmc_shutdown,
487 .max_freq = 24000000,
488 .dma_mask = 0xffffffff,
491 .set_power = n8x0_mmc_set_power,
492 .set_bus_mode = n8x0_mmc_set_bus_mode,
493 .get_cover_state = n8x0_mmc_get_cover_state,
494 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 |
495 MMC_VDD_32_33 | MMC_VDD_33_34,
499 .set_power = n8x0_mmc_set_power,
500 .set_bus_mode = n8x0_mmc_set_bus_mode,
501 .get_cover_state = n8x0_mmc_get_cover_state,
502 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 |
503 MMC_VDD_21_22 | MMC_VDD_22_23 |
504 MMC_VDD_23_24 | MMC_VDD_24_25 |
505 MMC_VDD_27_28 | MMC_VDD_28_29 |
506 MMC_VDD_29_30 | MMC_VDD_30_31 |
507 MMC_VDD_32_33 | MMC_VDD_33_34,
512 static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
514 void __init n8x0_mmc_init(void)
519 if (machine_is_nokia_n810()) {
520 mmc1_data.slots[0].name = "external";
523 * Some Samsung Movinand chips do not like open-ended
524 * multi-block reads and fall to braind-dead state
525 * while doing so. Reducing the number of blocks in
526 * the transfer or delays in clock disable do not help
528 mmc1_data.slots[1].name = "internal";
529 mmc1_data.slots[1].ban_openended = 1;
532 err = gpio_request(N8X0_SLOT_SWITCH_GPIO, "MMC slot switch");
536 gpio_direction_output(N8X0_SLOT_SWITCH_GPIO, 0);
538 if (machine_is_nokia_n810()) {
539 err = gpio_request(N810_EMMC_VSD_GPIO, "MMC slot 2 Vddf");
541 gpio_free(N8X0_SLOT_SWITCH_GPIO);
544 gpio_direction_output(N810_EMMC_VSD_GPIO, 0);
546 err = gpio_request(N810_EMMC_VIO_GPIO, "MMC slot 2 Vdd");
548 gpio_free(N8X0_SLOT_SWITCH_GPIO);
549 gpio_free(N810_EMMC_VSD_GPIO);
552 gpio_direction_output(N810_EMMC_VIO_GPIO, 0);
555 mmc_data[0] = &mmc1_data;
556 omap2_init_mmc(mmc_data, OMAP24XX_NR_MMC);
560 void __init n8x0_mmc_init(void)
564 void n8x0_mmc_slot1_cover_handler(void *arg, int state)
568 #endif /* CONFIG_MMC_OMAP */
570 #ifdef CONFIG_MENELAUS
572 static int n8x0_auto_sleep_regulators(void)
577 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \
578 | EN_VAUX_SLEEP | EN_VIO_SLEEP \
579 | EN_VMEM_SLEEP | EN_DC3_SLEEP \
580 | EN_VC_SLEEP | EN_DC2_SLEEP;
582 ret = menelaus_set_regulator_sleep(1, val);
584 printk(KERN_ERR "Could not set regulators to sleep on "
585 "menelaus: %u\n", ret);
591 static int n8x0_auto_voltage_scale(void)
595 ret = menelaus_set_vcore_hw(1400, 1050);
597 printk(KERN_ERR "Could not set VCORE voltage on "
598 "menelaus: %u\n", ret);
604 static int n8x0_menelaus_late_init(struct device *dev)
608 ret = n8x0_auto_voltage_scale();
611 ret = n8x0_auto_sleep_regulators();
617 static struct i2c_board_info __initdata n8x0_i2c_board_info_1[] = {
619 I2C_BOARD_INFO("menelaus", 0x72),
620 .irq = INT_24XX_SYS_NIRQ,
624 static struct menelaus_platform_data n8x0_menelaus_platform_data = {
625 .late_init = n8x0_menelaus_late_init,
628 static void __init n8x0_menelaus_init(void)
630 n8x0_i2c_board_info_1[0].platform_data = &n8x0_menelaus_platform_data;
631 omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1,
632 ARRAY_SIZE(n8x0_i2c_board_info_1));
636 static inline void __init n8x0_menelaus_init(void)
641 static void __init n8x0_map_io(void)
643 omap2_set_globals_242x();
644 omap242x_map_common_io();
647 static void __init n8x0_init_irq(void)
649 omap2_init_common_hw(NULL, NULL);
654 #ifdef CONFIG_OMAP_MUX
655 static struct omap_board_mux board_mux[] __initdata = {
656 { .reg_offset = OMAP_MUX_TERMINATOR },
659 #define board_mux NULL
662 static void __init n8x0_init_machine(void)
664 omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
665 /* FIXME: add n810 spi devices */
666 spi_register_board_info(n800_spi_board_info,
667 ARRAY_SIZE(n800_spi_board_info));
670 n8x0_menelaus_init();
676 MACHINE_START(NOKIA_N800, "Nokia N800")
677 .boot_params = 0x80000100,
678 .map_io = n8x0_map_io,
679 .reserve = omap_reserve,
680 .init_irq = n8x0_init_irq,
681 .init_machine = n8x0_init_machine,
682 .timer = &omap_timer,
685 MACHINE_START(NOKIA_N810, "Nokia N810")
686 .boot_params = 0x80000100,
687 .map_io = n8x0_map_io,
688 .reserve = omap_reserve,
689 .init_irq = n8x0_init_irq,
690 .init_machine = n8x0_init_machine,
691 .timer = &omap_timer,
694 MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX")
695 .boot_params = 0x80000100,
696 .map_io = n8x0_map_io,
697 .reserve = omap_reserve,
698 .init_irq = n8x0_init_irq,
699 .init_machine = n8x0_init_machine,
700 .timer = &omap_timer,