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>
36 static int slot1_cover_open;
37 static int slot2_cover_open;
38 static struct device *mmc_device;
40 static struct omap2_mcspi_device_config p54spi_mcspi_config = {
45 static struct spi_board_info n800_spi_board_info[] __initdata = {
50 .max_speed_hz = 48000000,
51 .controller_data = &p54spi_mcspi_config,
55 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
56 defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
58 static struct mtd_partition onenand_partitions[] = {
63 .mask_flags = MTD_WRITEABLE, /* Force read-only */
67 .offset = MTDPART_OFS_APPEND,
72 .offset = MTDPART_OFS_APPEND,
77 .offset = MTDPART_OFS_APPEND,
82 .offset = MTDPART_OFS_APPEND,
83 .size = MTDPART_SIZ_FULL,
87 static struct omap_onenand_platform_data board_onenand_data = {
90 .parts = onenand_partitions,
91 .nr_parts = ARRAY_SIZE(onenand_partitions),
92 .flags = ONENAND_SYNC_READ,
95 static void __init n8x0_onenand_init(void)
97 gpmc_onenand_init(&board_onenand_data);
102 static void __init n8x0_onenand_init(void) {}
106 #if defined(CONFIG_MENELAUS) && \
107 (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE))
110 * On both N800 and N810, only the first of the two MMC controllers is in use.
111 * The two MMC slots are multiplexed via Menelaus companion chip over I2C.
112 * On N800, both slots are powered via Menelaus. On N810, only one of the
113 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO.
115 * VMMC slot 1 on both N800 and N810
116 * VDCDC3_APE and VMCS2_APE slot 2 on N800
117 * GPIO23 and GPIO9 slot 2 EMMC on N810
120 #define N8X0_SLOT_SWITCH_GPIO 96
121 #define N810_EMMC_VSD_GPIO 23
122 #define NN810_EMMC_VIO_GPIO 9
124 static int n8x0_mmc_switch_slot(struct device *dev, int slot)
126 #ifdef CONFIG_MMC_DEBUG
127 dev_dbg(dev, "Choose slot %d\n", slot + 1);
129 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot);
133 static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot,
134 int power_on, int vdd)
138 #ifdef CONFIG_MMC_DEBUG
139 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
140 power_on ? "on" : "off", vdd);
144 return menelaus_set_vmmc(0);
157 case MMC_VDD_165_195:
163 return menelaus_set_vmmc(mV);
166 return menelaus_set_vdcdc(3, 0);
191 case MMC_VDD_165_195:
197 return menelaus_set_vdcdc(3, mV);
202 static void n810_set_power_emmc(struct device *dev,
205 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off");
208 gpio_set_value(N810_EMMC_VSD_GPIO, 1);
210 gpio_set_value(NN810_EMMC_VIO_GPIO, 1);
213 gpio_set_value(NN810_EMMC_VIO_GPIO, 0);
215 gpio_set_value(N810_EMMC_VSD_GPIO, 0);
220 static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on,
223 if (machine_is_nokia_n800() || slot == 0)
224 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd);
226 n810_set_power_emmc(dev, power_on);
231 static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
235 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1,
236 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
237 BUG_ON(slot != 0 && slot != 1);
240 case MMC_BUSMODE_OPENDRAIN:
241 r = menelaus_set_mmc_opendrain(slot, 1);
243 case MMC_BUSMODE_PUSHPULL:
244 r = menelaus_set_mmc_opendrain(slot, 0);
249 if (r != 0 && printk_ratelimit())
250 dev_err(dev, "MMC: unable to set bus mode for slot %d\n",
255 static int n8x0_mmc_get_cover_state(struct device *dev, int slot)
258 BUG_ON(slot != 1 && slot != 2);
260 return slot1_cover_open;
262 return slot2_cover_open;
265 static void n8x0_mmc_callback(void *data, u8 card_mask)
267 int bit, *openp, index;
269 if (machine_is_nokia_n800()) {
271 openp = &slot2_cover_open;
275 openp = &slot1_cover_open;
284 omap_mmc_notify_cover_event(mmc_device, index, *openp);
287 void n8x0_mmc_slot1_cover_handler(void *arg, int closed_state)
289 if (mmc_device == NULL)
292 slot1_cover_open = !closed_state;
293 omap_mmc_notify_cover_event(mmc_device, 0, closed_state);
296 static int n8x0_mmc_late_init(struct device *dev)
303 r = menelaus_set_slot_sel(1);
307 if (machine_is_nokia_n800())
312 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1);
316 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */
317 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16);
319 r = menelaus_set_mmc_slot(1, 1, 0, 1);
322 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1);
326 r = menelaus_get_slot_pin_states();
330 if (machine_is_nokia_n800()) {
332 openp = &slot2_cover_open;
335 openp = &slot1_cover_open;
336 slot2_cover_open = 0;
339 /* All slot pin bits seem to be inversed until first switch change */
340 if (r == 0xf || r == (0xf & ~bit))
348 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL);
353 static void n8x0_mmc_shutdown(struct device *dev)
357 if (machine_is_nokia_n800())
362 menelaus_set_mmc_slot(1, 0, 0, 0);
363 menelaus_set_mmc_slot(2, 0, vs2sel, 0);
366 static void n8x0_mmc_cleanup(struct device *dev)
368 menelaus_unregister_mmc_callback();
370 gpio_free(N8X0_SLOT_SWITCH_GPIO);
372 if (machine_is_nokia_n810()) {
373 gpio_free(N810_EMMC_VSD_GPIO);
374 gpio_free(NN810_EMMC_VIO_GPIO);
379 * MMC controller1 has two slots that are multiplexed via I2C.
380 * MMC controller2 is not in use.
382 static struct omap_mmc_platform_data mmc1_data = {
384 .switch_slot = n8x0_mmc_switch_slot,
385 .init = n8x0_mmc_late_init,
386 .cleanup = n8x0_mmc_cleanup,
387 .shutdown = n8x0_mmc_shutdown,
388 .max_freq = 24000000,
389 .dma_mask = 0xffffffff,
392 .set_power = n8x0_mmc_set_power,
393 .set_bus_mode = n8x0_mmc_set_bus_mode,
394 .get_cover_state = n8x0_mmc_get_cover_state,
395 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 |
396 MMC_VDD_32_33 | MMC_VDD_33_34,
400 .set_power = n8x0_mmc_set_power,
401 .set_bus_mode = n8x0_mmc_set_bus_mode,
402 .get_cover_state = n8x0_mmc_get_cover_state,
403 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 |
404 MMC_VDD_21_22 | MMC_VDD_22_23 |
405 MMC_VDD_23_24 | MMC_VDD_24_25 |
406 MMC_VDD_27_28 | MMC_VDD_28_29 |
407 MMC_VDD_29_30 | MMC_VDD_30_31 |
408 MMC_VDD_32_33 | MMC_VDD_33_34,
413 static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
415 void __init n8x0_mmc_init(void)
420 if (machine_is_nokia_n810()) {
421 mmc1_data.slots[0].name = "external";
424 * Some Samsung Movinand chips do not like open-ended
425 * multi-block reads and fall to braind-dead state
426 * while doing so. Reducing the number of blocks in
427 * the transfer or delays in clock disable do not help
429 mmc1_data.slots[1].name = "internal";
430 mmc1_data.slots[1].ban_openended = 1;
433 err = gpio_request(N8X0_SLOT_SWITCH_GPIO, "MMC slot switch");
437 gpio_direction_output(N8X0_SLOT_SWITCH_GPIO, 0);
439 if (machine_is_nokia_n810()) {
440 err = gpio_request(N810_EMMC_VSD_GPIO, "MMC slot 2 Vddf");
442 gpio_free(N8X0_SLOT_SWITCH_GPIO);
445 gpio_direction_output(N810_EMMC_VSD_GPIO, 0);
447 err = gpio_request(NN810_EMMC_VIO_GPIO, "MMC slot 2 Vdd");
449 gpio_free(N8X0_SLOT_SWITCH_GPIO);
450 gpio_free(N810_EMMC_VSD_GPIO);
453 gpio_direction_output(NN810_EMMC_VIO_GPIO, 0);
456 mmc_data[0] = &mmc1_data;
457 omap2_init_mmc(mmc_data, OMAP24XX_NR_MMC);
461 void __init n8x0_mmc_init(void)
465 void n8x0_mmc_slot1_cover_handler(void *arg, int state)
469 #endif /* CONFIG_MMC_OMAP */
471 #ifdef CONFIG_MENELAUS
473 static int n8x0_auto_sleep_regulators(void)
478 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \
479 | EN_VAUX_SLEEP | EN_VIO_SLEEP \
480 | EN_VMEM_SLEEP | EN_DC3_SLEEP \
481 | EN_VC_SLEEP | EN_DC2_SLEEP;
483 ret = menelaus_set_regulator_sleep(1, val);
485 printk(KERN_ERR "Could not set regulators to sleep on "
486 "menelaus: %u\n", ret);
492 static int n8x0_auto_voltage_scale(void)
496 ret = menelaus_set_vcore_hw(1400, 1050);
498 printk(KERN_ERR "Could not set VCORE voltage on "
499 "menelaus: %u\n", ret);
505 static int n8x0_menelaus_late_init(struct device *dev)
509 ret = n8x0_auto_voltage_scale();
512 ret = n8x0_auto_sleep_regulators();
518 static struct i2c_board_info __initdata n8x0_i2c_board_info_1[] = {
520 I2C_BOARD_INFO("menelaus", 0x72),
521 .irq = INT_24XX_SYS_NIRQ,
525 static struct menelaus_platform_data n8x0_menelaus_platform_data = {
526 .late_init = n8x0_menelaus_late_init,
529 static void __init n8x0_menelaus_init(void)
531 n8x0_i2c_board_info_1[0].platform_data = &n8x0_menelaus_platform_data;
532 omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1,
533 ARRAY_SIZE(n8x0_i2c_board_info_1));
537 static inline void __init n8x0_menelaus_init(void)
542 static void __init n8x0_map_io(void)
544 omap2_set_globals_242x();
545 omap242x_map_common_io();
548 static void __init n8x0_init_irq(void)
550 omap2_init_common_hw(NULL, NULL);
555 static void __init n8x0_init_machine(void)
557 /* FIXME: add n810 spi devices */
558 spi_register_board_info(n800_spi_board_info,
559 ARRAY_SIZE(n800_spi_board_info));
562 n8x0_menelaus_init();
567 MACHINE_START(NOKIA_N800, "Nokia N800")
568 .phys_io = 0x48000000,
569 .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
570 .boot_params = 0x80000100,
571 .map_io = n8x0_map_io,
572 .init_irq = n8x0_init_irq,
573 .init_machine = n8x0_init_machine,
574 .timer = &omap_timer,
577 MACHINE_START(NOKIA_N810, "Nokia N810")
578 .phys_io = 0x48000000,
579 .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
580 .boot_params = 0x80000100,
581 .map_io = n8x0_map_io,
582 .init_irq = n8x0_init_irq,
583 .init_machine = n8x0_init_machine,
584 .timer = &omap_timer,
587 MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX")
588 .phys_io = 0x48000000,
589 .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
590 .boot_params = 0x80000100,
591 .map_io = n8x0_map_io,
592 .init_irq = n8x0_init_irq,
593 .init_machine = n8x0_init_machine,
594 .timer = &omap_timer,