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
,