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 #define TUSB6010_ASYNC_CS 1
41 #define TUSB6010_SYNC_CS 4
42 #define TUSB6010_GPIO_INT 58
43 #define TUSB6010_GPIO_ENABLE 0
44 #define TUSB6010_DMACHAN 0x3f
46 #if defined(CONFIG_USB_TUSB6010) || \
47 defined(CONFIG_USB_TUSB6010_MODULE)
49 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
50 * 1.5 V voltage regulators of PM companion chip. Companion chip will then
51 * provide then PGOOD signal to TUSB6010 which will release it from reset.
53 static int tusb_set_power(int state
)
58 gpio_set_value(TUSB6010_GPIO_ENABLE
, 1);
61 /* Wait until TUSB6010 pulls INT pin down */
63 while (i
&& gpio_get_value(TUSB6010_GPIO_INT
)) {
69 printk(KERN_ERR
"tusb: powerup failed\n");
73 gpio_set_value(TUSB6010_GPIO_ENABLE
, 0);
80 static struct musb_hdrc_config musb_config
= {
87 static struct musb_hdrc_platform_data tusb_data
= {
88 #if defined(CONFIG_USB_MUSB_OTG)
90 #elif defined(CONFIG_USB_MUSB_PERIPHERAL)
91 .mode
= MUSB_PERIPHERAL
,
92 #else /* defined(CONFIG_USB_MUSB_HOST) */
95 .set_power
= tusb_set_power
,
96 .min_power
= 25, /* x2 = 50 mA drawn from VBUS as peripheral */
97 .power
= 100, /* Max 100 mA VBUS for host mode */
98 .config
= &musb_config
,
101 static void __init
n8x0_usb_init(void)
104 static char announce
[] __initdata
= KERN_INFO
"TUSB 6010\n";
106 /* PM companion chip power control pin */
107 ret
= gpio_request(TUSB6010_GPIO_ENABLE
, "TUSB6010 enable");
109 printk(KERN_ERR
"Could not get TUSB power GPIO%i\n",
110 TUSB6010_GPIO_ENABLE
);
113 gpio_direction_output(TUSB6010_GPIO_ENABLE
, 0);
117 ret
= tusb6010_setup_interface(&tusb_data
, TUSB6010_REFCLK_19
, 2,
118 TUSB6010_ASYNC_CS
, TUSB6010_SYNC_CS
,
119 TUSB6010_GPIO_INT
, TUSB6010_DMACHAN
);
128 gpio_free(TUSB6010_GPIO_ENABLE
);
132 static void __init
n8x0_usb_init(void) {}
134 #endif /*CONFIG_USB_TUSB6010 */
137 static struct omap2_mcspi_device_config p54spi_mcspi_config
= {
142 static struct spi_board_info n800_spi_board_info
[] __initdata
= {
144 .modalias
= "p54spi",
147 .max_speed_hz
= 48000000,
148 .controller_data
= &p54spi_mcspi_config
,
152 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
153 defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
155 static struct mtd_partition onenand_partitions
[] = {
157 .name
= "bootloader",
160 .mask_flags
= MTD_WRITEABLE
, /* Force read-only */
164 .offset
= MTDPART_OFS_APPEND
,
169 .offset
= MTDPART_OFS_APPEND
,
174 .offset
= MTDPART_OFS_APPEND
,
179 .offset
= MTDPART_OFS_APPEND
,
180 .size
= MTDPART_SIZ_FULL
,
184 static struct omap_onenand_platform_data board_onenand_data
= {
187 .parts
= onenand_partitions
,
188 .nr_parts
= ARRAY_SIZE(onenand_partitions
),
189 .flags
= ONENAND_SYNC_READ
,
192 static void __init
n8x0_onenand_init(void)
194 gpmc_onenand_init(&board_onenand_data
);
199 static void __init
n8x0_onenand_init(void) {}
203 #if defined(CONFIG_MENELAUS) && \
204 (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE))
207 * On both N800 and N810, only the first of the two MMC controllers is in use.
208 * The two MMC slots are multiplexed via Menelaus companion chip over I2C.
209 * On N800, both slots are powered via Menelaus. On N810, only one of the
210 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO.
212 * VMMC slot 1 on both N800 and N810
213 * VDCDC3_APE and VMCS2_APE slot 2 on N800
214 * GPIO23 and GPIO9 slot 2 EMMC on N810
217 #define N8X0_SLOT_SWITCH_GPIO 96
218 #define N810_EMMC_VSD_GPIO 23
219 #define N810_EMMC_VIO_GPIO 9
221 static int n8x0_mmc_switch_slot(struct device
*dev
, int slot
)
223 #ifdef CONFIG_MMC_DEBUG
224 dev_dbg(dev
, "Choose slot %d\n", slot
+ 1);
226 gpio_set_value(N8X0_SLOT_SWITCH_GPIO
, slot
);
230 static int n8x0_mmc_set_power_menelaus(struct device
*dev
, int slot
,
231 int power_on
, int vdd
)
235 #ifdef CONFIG_MMC_DEBUG
236 dev_dbg(dev
, "Set slot %d power: %s (vdd %d)\n", slot
+ 1,
237 power_on
? "on" : "off", vdd
);
241 return menelaus_set_vmmc(0);
254 case MMC_VDD_165_195
:
260 return menelaus_set_vmmc(mV
);
263 return menelaus_set_vdcdc(3, 0);
288 case MMC_VDD_165_195
:
294 return menelaus_set_vdcdc(3, mV
);
299 static void n810_set_power_emmc(struct device
*dev
,
302 dev_dbg(dev
, "Set EMMC power %s\n", power_on
? "on" : "off");
305 gpio_set_value(N810_EMMC_VSD_GPIO
, 1);
307 gpio_set_value(N810_EMMC_VIO_GPIO
, 1);
310 gpio_set_value(N810_EMMC_VIO_GPIO
, 0);
312 gpio_set_value(N810_EMMC_VSD_GPIO
, 0);
317 static int n8x0_mmc_set_power(struct device
*dev
, int slot
, int power_on
,
320 if (machine_is_nokia_n800() || slot
== 0)
321 return n8x0_mmc_set_power_menelaus(dev
, slot
, power_on
, vdd
);
323 n810_set_power_emmc(dev
, power_on
);
328 static int n8x0_mmc_set_bus_mode(struct device
*dev
, int slot
, int bus_mode
)
332 dev_dbg(dev
, "Set slot %d bus mode %s\n", slot
+ 1,
333 bus_mode
== MMC_BUSMODE_OPENDRAIN
? "open-drain" : "push-pull");
334 BUG_ON(slot
!= 0 && slot
!= 1);
337 case MMC_BUSMODE_OPENDRAIN
:
338 r
= menelaus_set_mmc_opendrain(slot
, 1);
340 case MMC_BUSMODE_PUSHPULL
:
341 r
= menelaus_set_mmc_opendrain(slot
, 0);
346 if (r
!= 0 && printk_ratelimit())
347 dev_err(dev
, "MMC: unable to set bus mode for slot %d\n",
352 static int n8x0_mmc_get_cover_state(struct device
*dev
, int slot
)
355 BUG_ON(slot
!= 1 && slot
!= 2);
357 return slot1_cover_open
;
359 return slot2_cover_open
;
362 static void n8x0_mmc_callback(void *data
, u8 card_mask
)
364 int bit
, *openp
, index
;
366 if (machine_is_nokia_n800()) {
368 openp
= &slot2_cover_open
;
372 openp
= &slot1_cover_open
;
381 omap_mmc_notify_cover_event(mmc_device
, index
, *openp
);
384 void n8x0_mmc_slot1_cover_handler(void *arg
, int closed_state
)
386 if (mmc_device
== NULL
)
389 slot1_cover_open
= !closed_state
;
390 omap_mmc_notify_cover_event(mmc_device
, 0, closed_state
);
393 static int n8x0_mmc_late_init(struct device
*dev
)
400 r
= menelaus_set_slot_sel(1);
404 if (machine_is_nokia_n800())
409 r
= menelaus_set_mmc_slot(2, 0, vs2sel
, 1);
413 n8x0_mmc_set_power(dev
, 0, MMC_POWER_ON
, 16); /* MMC_VDD_28_29 */
414 n8x0_mmc_set_power(dev
, 1, MMC_POWER_ON
, 16);
416 r
= menelaus_set_mmc_slot(1, 1, 0, 1);
419 r
= menelaus_set_mmc_slot(2, 1, vs2sel
, 1);
423 r
= menelaus_get_slot_pin_states();
427 if (machine_is_nokia_n800()) {
429 openp
= &slot2_cover_open
;
432 openp
= &slot1_cover_open
;
433 slot2_cover_open
= 0;
436 /* All slot pin bits seem to be inversed until first switch change */
437 if (r
== 0xf || r
== (0xf & ~bit
))
445 r
= menelaus_register_mmc_callback(n8x0_mmc_callback
, NULL
);
450 static void n8x0_mmc_shutdown(struct device
*dev
)
454 if (machine_is_nokia_n800())
459 menelaus_set_mmc_slot(1, 0, 0, 0);
460 menelaus_set_mmc_slot(2, 0, vs2sel
, 0);
463 static void n8x0_mmc_cleanup(struct device
*dev
)
465 menelaus_unregister_mmc_callback();
467 gpio_free(N8X0_SLOT_SWITCH_GPIO
);
469 if (machine_is_nokia_n810()) {
470 gpio_free(N810_EMMC_VSD_GPIO
);
471 gpio_free(N810_EMMC_VIO_GPIO
);
476 * MMC controller1 has two slots that are multiplexed via I2C.
477 * MMC controller2 is not in use.
479 static struct omap_mmc_platform_data mmc1_data
= {
481 .switch_slot
= n8x0_mmc_switch_slot
,
482 .init
= n8x0_mmc_late_init
,
483 .cleanup
= n8x0_mmc_cleanup
,
484 .shutdown
= n8x0_mmc_shutdown
,
485 .max_freq
= 24000000,
486 .dma_mask
= 0xffffffff,
489 .set_power
= n8x0_mmc_set_power
,
490 .set_bus_mode
= n8x0_mmc_set_bus_mode
,
491 .get_cover_state
= n8x0_mmc_get_cover_state
,
492 .ocr_mask
= MMC_VDD_165_195
| MMC_VDD_30_31
|
493 MMC_VDD_32_33
| MMC_VDD_33_34
,
497 .set_power
= n8x0_mmc_set_power
,
498 .set_bus_mode
= n8x0_mmc_set_bus_mode
,
499 .get_cover_state
= n8x0_mmc_get_cover_state
,
500 .ocr_mask
= MMC_VDD_165_195
| MMC_VDD_20_21
|
501 MMC_VDD_21_22
| MMC_VDD_22_23
|
502 MMC_VDD_23_24
| MMC_VDD_24_25
|
503 MMC_VDD_27_28
| MMC_VDD_28_29
|
504 MMC_VDD_29_30
| MMC_VDD_30_31
|
505 MMC_VDD_32_33
| MMC_VDD_33_34
,
510 static struct omap_mmc_platform_data
*mmc_data
[OMAP24XX_NR_MMC
];
512 void __init
n8x0_mmc_init(void)
517 if (machine_is_nokia_n810()) {
518 mmc1_data
.slots
[0].name
= "external";
521 * Some Samsung Movinand chips do not like open-ended
522 * multi-block reads and fall to braind-dead state
523 * while doing so. Reducing the number of blocks in
524 * the transfer or delays in clock disable do not help
526 mmc1_data
.slots
[1].name
= "internal";
527 mmc1_data
.slots
[1].ban_openended
= 1;
530 err
= gpio_request(N8X0_SLOT_SWITCH_GPIO
, "MMC slot switch");
534 gpio_direction_output(N8X0_SLOT_SWITCH_GPIO
, 0);
536 if (machine_is_nokia_n810()) {
537 err
= gpio_request(N810_EMMC_VSD_GPIO
, "MMC slot 2 Vddf");
539 gpio_free(N8X0_SLOT_SWITCH_GPIO
);
542 gpio_direction_output(N810_EMMC_VSD_GPIO
, 0);
544 err
= gpio_request(N810_EMMC_VIO_GPIO
, "MMC slot 2 Vdd");
546 gpio_free(N8X0_SLOT_SWITCH_GPIO
);
547 gpio_free(N810_EMMC_VSD_GPIO
);
550 gpio_direction_output(N810_EMMC_VIO_GPIO
, 0);
553 mmc_data
[0] = &mmc1_data
;
554 omap2_init_mmc(mmc_data
, OMAP24XX_NR_MMC
);
558 void __init
n8x0_mmc_init(void)
562 void n8x0_mmc_slot1_cover_handler(void *arg
, int state
)
566 #endif /* CONFIG_MMC_OMAP */
568 #ifdef CONFIG_MENELAUS
570 static int n8x0_auto_sleep_regulators(void)
575 val
= EN_VPLL_SLEEP
| EN_VMMC_SLEEP \
576 | EN_VAUX_SLEEP
| EN_VIO_SLEEP \
577 | EN_VMEM_SLEEP
| EN_DC3_SLEEP \
578 | EN_VC_SLEEP
| EN_DC2_SLEEP
;
580 ret
= menelaus_set_regulator_sleep(1, val
);
582 printk(KERN_ERR
"Could not set regulators to sleep on "
583 "menelaus: %u\n", ret
);
589 static int n8x0_auto_voltage_scale(void)
593 ret
= menelaus_set_vcore_hw(1400, 1050);
595 printk(KERN_ERR
"Could not set VCORE voltage on "
596 "menelaus: %u\n", ret
);
602 static int n8x0_menelaus_late_init(struct device
*dev
)
606 ret
= n8x0_auto_voltage_scale();
609 ret
= n8x0_auto_sleep_regulators();
615 static struct i2c_board_info __initdata n8x0_i2c_board_info_1
[] = {
617 I2C_BOARD_INFO("menelaus", 0x72),
618 .irq
= INT_24XX_SYS_NIRQ
,
622 static struct menelaus_platform_data n8x0_menelaus_platform_data
= {
623 .late_init
= n8x0_menelaus_late_init
,
626 static void __init
n8x0_menelaus_init(void)
628 n8x0_i2c_board_info_1
[0].platform_data
= &n8x0_menelaus_platform_data
;
629 omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1
,
630 ARRAY_SIZE(n8x0_i2c_board_info_1
));
634 static inline void __init
n8x0_menelaus_init(void)
639 static void __init
n8x0_map_io(void)
641 omap2_set_globals_242x();
642 omap242x_map_common_io();
645 static void __init
n8x0_init_irq(void)
647 omap2_init_common_hw(NULL
, NULL
);
652 static void __init
n8x0_init_machine(void)
654 /* FIXME: add n810 spi devices */
655 spi_register_board_info(n800_spi_board_info
,
656 ARRAY_SIZE(n800_spi_board_info
));
659 n8x0_menelaus_init();
665 MACHINE_START(NOKIA_N800
, "Nokia N800")
666 .phys_io
= 0x48000000,
667 .io_pg_offst
= ((0xfa000000) >> 18) & 0xfffc,
668 .boot_params
= 0x80000100,
669 .map_io
= n8x0_map_io
,
670 .init_irq
= n8x0_init_irq
,
671 .init_machine
= n8x0_init_machine
,
672 .timer
= &omap_timer
,
675 MACHINE_START(NOKIA_N810
, "Nokia N810")
676 .phys_io
= 0x48000000,
677 .io_pg_offst
= ((0xfa000000) >> 18) & 0xfffc,
678 .boot_params
= 0x80000100,
679 .map_io
= n8x0_map_io
,
680 .init_irq
= n8x0_init_irq
,
681 .init_machine
= n8x0_init_machine
,
682 .timer
= &omap_timer
,
685 MACHINE_START(NOKIA_N810_WIMAX
, "Nokia N810 WiMAX")
686 .phys_io
= 0x48000000,
687 .io_pg_offst
= ((0xfa000000) >> 18) & 0xfffc,
688 .boot_params
= 0x80000100,
689 .map_io
= n8x0_map_io
,
690 .init_irq
= n8x0_init_irq
,
691 .init_machine
= n8x0_init_machine
,
692 .timer
= &omap_timer
,