2 * Copyright (C) 2000 Deep Blue Solutions Ltd
3 * Copyright (C) 2002 Shane Nay (shane@minirl.com)
4 * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
17 #include <linux/types.h>
18 #include <linux/init.h>
19 #include <linux/clk.h>
20 #include <linux/serial_8250.h>
21 #include <linux/gpio.h>
22 #include <linux/i2c.h>
23 #include <linux/irq.h>
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27 #include <asm/mach/time.h>
28 #include <asm/memory.h>
29 #include <asm/mach/map.h>
30 #include <mach/common.h>
31 #include <mach/board-mx31ads.h>
32 #include <mach/iomux-mx3.h>
34 #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
35 #include <linux/mfd/wm8350/audio.h>
36 #include <linux/mfd/wm8350/core.h>
37 #include <linux/mfd/wm8350/pmic.h>
40 #include "devices-imx31.h"
43 /* PBC Board interrupt status register */
44 #define PBC_INTSTATUS 0x000016
46 /* PBC Board interrupt current status register */
47 #define PBC_INTCURR_STATUS 0x000018
49 /* PBC Interrupt mask register set address */
50 #define PBC_INTMASK_SET 0x00001A
52 /* PBC Interrupt mask register clear address */
53 #define PBC_INTMASK_CLEAR 0x00001C
56 #define PBC_SC16C652_UARTA 0x010000
59 #define PBC_SC16C652_UARTB 0x010010
61 #define PBC_INTSTATUS_REG (PBC_INTSTATUS + PBC_BASE_ADDRESS)
62 #define PBC_INTMASK_SET_REG (PBC_INTMASK_SET + PBC_BASE_ADDRESS)
63 #define PBC_INTMASK_CLEAR_REG (PBC_INTMASK_CLEAR + PBC_BASE_ADDRESS)
64 #define EXPIO_PARENT_INT IOMUX_TO_IRQ(MX31_PIN_GPIO1_4)
66 #define MXC_IRQ_TO_EXPIO(irq) ((irq) - MXC_EXP_IO_BASE)
68 #define EXPIO_INT_XUART_INTA (MXC_EXP_IO_BASE + 10)
69 #define EXPIO_INT_XUART_INTB (MXC_EXP_IO_BASE + 11)
71 #define MXC_MAX_EXP_IO_LINES 16
73 * This file contains the board-specific initialization routines.
77 * The serial port definition structure.
79 static struct plat_serial8250_port serial_platform_data
[] = {
81 .membase
= (void *)(PBC_BASE_ADDRESS
+ PBC_SC16C652_UARTA
),
82 .mapbase
= (unsigned long)(MX31_CS4_BASE_ADDR
+ PBC_SC16C652_UARTA
),
83 .irq
= EXPIO_INT_XUART_INTA
,
87 .flags
= UPF_BOOT_AUTOCONF
| UPF_SKIP_TEST
| UPF_AUTO_IRQ
,
89 .membase
= (void *)(PBC_BASE_ADDRESS
+ PBC_SC16C652_UARTB
),
90 .mapbase
= (unsigned long)(MX31_CS4_BASE_ADDR
+ PBC_SC16C652_UARTB
),
91 .irq
= EXPIO_INT_XUART_INTB
,
95 .flags
= UPF_BOOT_AUTOCONF
| UPF_SKIP_TEST
| UPF_AUTO_IRQ
,
100 static struct platform_device serial_device
= {
101 .name
= "serial8250",
104 .platform_data
= serial_platform_data
,
108 static int __init
mxc_init_extuart(void)
110 return platform_device_register(&serial_device
);
113 static const struct imxuart_platform_data uart_pdata __initconst
= {
114 .flags
= IMXUART_HAVE_RTSCTS
,
117 static unsigned int uart_pins
[] = {
124 static inline void mxc_init_imx_uart(void)
126 mxc_iomux_setup_multiple_pins(uart_pins
, ARRAY_SIZE(uart_pins
), "uart-0");
127 imx31_add_imx_uart0(&uart_pdata
);
130 static void mx31ads_expio_irq_handler(u32 irq
, struct irq_desc
*desc
)
136 imr_val
= __raw_readw(PBC_INTMASK_SET_REG
);
137 int_valid
= __raw_readw(PBC_INTSTATUS_REG
) & imr_val
;
139 expio_irq
= MXC_EXP_IO_BASE
;
140 for (; int_valid
!= 0; int_valid
>>= 1, expio_irq
++) {
141 if ((int_valid
& 1) == 0)
144 generic_handle_irq(expio_irq
);
149 * Disable an expio pin's interrupt by setting the bit in the imr.
150 * @param irq an expio virtual irq number
152 static void expio_mask_irq(struct irq_data
*d
)
154 u32 expio
= MXC_IRQ_TO_EXPIO(d
->irq
);
155 /* mask the interrupt */
156 __raw_writew(1 << expio
, PBC_INTMASK_CLEAR_REG
);
157 __raw_readw(PBC_INTMASK_CLEAR_REG
);
161 * Acknowledge an expanded io pin's interrupt by clearing the bit in the isr.
162 * @param irq an expanded io virtual irq number
164 static void expio_ack_irq(struct irq_data
*d
)
166 u32 expio
= MXC_IRQ_TO_EXPIO(d
->irq
);
167 /* clear the interrupt status */
168 __raw_writew(1 << expio
, PBC_INTSTATUS_REG
);
172 * Enable a expio pin's interrupt by clearing the bit in the imr.
173 * @param irq a expio virtual irq number
175 static void expio_unmask_irq(struct irq_data
*d
)
177 u32 expio
= MXC_IRQ_TO_EXPIO(d
->irq
);
178 /* unmask the interrupt */
179 __raw_writew(1 << expio
, PBC_INTMASK_SET_REG
);
182 static struct irq_chip expio_irq_chip
= {
183 .name
= "EXPIO(CPLD)",
184 .irq_ack
= expio_ack_irq
,
185 .irq_mask
= expio_mask_irq
,
186 .irq_unmask
= expio_unmask_irq
,
189 static void __init
mx31ads_init_expio(void)
193 printk(KERN_INFO
"MX31ADS EXPIO(CPLD) hardware\n");
196 * Configure INT line as GPIO input
198 mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_GPIO1_4
, IOMUX_CONFIG_GPIO
), "expio");
200 /* disable the interrupt and clear the status */
201 __raw_writew(0xFFFF, PBC_INTMASK_CLEAR_REG
);
202 __raw_writew(0xFFFF, PBC_INTSTATUS_REG
);
203 for (i
= MXC_EXP_IO_BASE
; i
< (MXC_EXP_IO_BASE
+ MXC_MAX_EXP_IO_LINES
);
205 set_irq_chip(i
, &expio_irq_chip
);
206 set_irq_handler(i
, handle_level_irq
);
207 set_irq_flags(i
, IRQF_VALID
);
209 set_irq_type(EXPIO_PARENT_INT
, IRQ_TYPE_LEVEL_HIGH
);
210 set_irq_chained_handler(EXPIO_PARENT_INT
, mx31ads_expio_irq_handler
);
213 #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
214 /* This section defines setup for the Wolfson Microelectronics
215 * 1133-EV1 PMU/audio board. When other PMU boards are supported the
216 * regulator definitions may be shared with them, but for now they can
217 * only be used with this board so would generate warnings about
218 * unused statics and some of the configuration is specific to this
223 static struct regulator_consumer_supply sw1a_consumers
[] = {
229 static struct regulator_init_data sw1a_data
= {
234 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
|
235 REGULATOR_CHANGE_MODE
,
236 .valid_modes_mask
= REGULATOR_MODE_NORMAL
|
240 .mode
= REGULATOR_MODE_NORMAL
,
243 .initial_state
= PM_SUSPEND_MEM
,
247 .num_consumer_supplies
= ARRAY_SIZE(sw1a_consumers
),
248 .consumer_supplies
= sw1a_consumers
,
251 /* System IO - High */
252 static struct regulator_init_data viohi_data
= {
259 .mode
= REGULATOR_MODE_NORMAL
,
262 .initial_state
= PM_SUSPEND_MEM
,
268 /* System IO - Low */
269 static struct regulator_init_data violo_data
= {
276 .mode
= REGULATOR_MODE_NORMAL
,
279 .initial_state
= PM_SUSPEND_MEM
,
286 static struct regulator_init_data sw2a_data
= {
291 .valid_modes_mask
= REGULATOR_MODE_NORMAL
,
294 .mode
= REGULATOR_MODE_NORMAL
,
298 .mode
= REGULATOR_MODE_NORMAL
,
303 .initial_state
= PM_SUSPEND_MEM
,
307 static struct regulator_init_data ldo1_data
= {
309 .name
= "VCAM/VMMC1/VMMC2",
312 .valid_modes_mask
= REGULATOR_MODE_NORMAL
,
313 .valid_ops_mask
= REGULATOR_CHANGE_STATUS
,
318 static struct regulator_consumer_supply ldo2_consumers
[] = {
319 { .supply
= "AVDD", .dev_name
= "1-001a" },
320 { .supply
= "HPVDD", .dev_name
= "1-001a" },
324 static struct regulator_init_data ldo2_data
= {
326 .name
= "VESIM/VSIM/AVDD",
329 .valid_modes_mask
= REGULATOR_MODE_NORMAL
,
330 .valid_ops_mask
= REGULATOR_CHANGE_STATUS
,
333 .num_consumer_supplies
= ARRAY_SIZE(ldo2_consumers
),
334 .consumer_supplies
= ldo2_consumers
,
338 static struct regulator_init_data vdig_data
= {
343 .valid_modes_mask
= REGULATOR_MODE_NORMAL
,
351 static struct regulator_init_data ldo4_data
= {
353 .name
= "VRF1/CVDD_2.775",
356 .valid_modes_mask
= REGULATOR_MODE_NORMAL
,
363 static struct wm8350_led_platform_data wm8350_led_data
= {
364 .name
= "wm8350:white",
365 .default_trigger
= "heartbeat",
369 static struct wm8350_audio_platform_data imx32ads_wm8350_setup
= {
370 .vmid_discharge_msecs
= 1000,
372 .cap_discharge_msecs
= 700,
373 .vmid_charge_msecs
= 700,
374 .vmid_s_curve
= WM8350_S_CURVE_SLOW
,
375 .dis_out4
= WM8350_DISCHARGE_SLOW
,
376 .dis_out3
= WM8350_DISCHARGE_SLOW
,
377 .dis_out2
= WM8350_DISCHARGE_SLOW
,
378 .dis_out1
= WM8350_DISCHARGE_SLOW
,
379 .vroi_out4
= WM8350_TIE_OFF_500R
,
380 .vroi_out3
= WM8350_TIE_OFF_500R
,
381 .vroi_out2
= WM8350_TIE_OFF_500R
,
382 .vroi_out1
= WM8350_TIE_OFF_500R
,
384 .codec_current_on
= WM8350_CODEC_ISEL_1_0
,
385 .codec_current_standby
= WM8350_CODEC_ISEL_0_5
,
386 .codec_current_charge
= WM8350_CODEC_ISEL_1_5
,
389 static int mx31_wm8350_init(struct wm8350
*wm8350
)
391 wm8350_gpio_config(wm8350
, 0, WM8350_GPIO_DIR_IN
,
392 WM8350_GPIO0_PWR_ON_IN
, WM8350_GPIO_ACTIVE_LOW
,
393 WM8350_GPIO_PULL_UP
, WM8350_GPIO_INVERT_OFF
,
394 WM8350_GPIO_DEBOUNCE_ON
);
396 wm8350_gpio_config(wm8350
, 3, WM8350_GPIO_DIR_IN
,
397 WM8350_GPIO3_PWR_OFF_IN
, WM8350_GPIO_ACTIVE_HIGH
,
398 WM8350_GPIO_PULL_DOWN
, WM8350_GPIO_INVERT_OFF
,
399 WM8350_GPIO_DEBOUNCE_ON
);
401 wm8350_gpio_config(wm8350
, 4, WM8350_GPIO_DIR_IN
,
402 WM8350_GPIO4_MR_IN
, WM8350_GPIO_ACTIVE_HIGH
,
403 WM8350_GPIO_PULL_DOWN
, WM8350_GPIO_INVERT_OFF
,
404 WM8350_GPIO_DEBOUNCE_OFF
);
406 wm8350_gpio_config(wm8350
, 7, WM8350_GPIO_DIR_IN
,
407 WM8350_GPIO7_HIBERNATE_IN
, WM8350_GPIO_ACTIVE_HIGH
,
408 WM8350_GPIO_PULL_DOWN
, WM8350_GPIO_INVERT_OFF
,
409 WM8350_GPIO_DEBOUNCE_OFF
);
411 wm8350_gpio_config(wm8350
, 6, WM8350_GPIO_DIR_OUT
,
412 WM8350_GPIO6_SDOUT_OUT
, WM8350_GPIO_ACTIVE_HIGH
,
413 WM8350_GPIO_PULL_NONE
, WM8350_GPIO_INVERT_OFF
,
414 WM8350_GPIO_DEBOUNCE_OFF
);
416 wm8350_gpio_config(wm8350
, 8, WM8350_GPIO_DIR_OUT
,
417 WM8350_GPIO8_VCC_FAULT_OUT
, WM8350_GPIO_ACTIVE_LOW
,
418 WM8350_GPIO_PULL_NONE
, WM8350_GPIO_INVERT_OFF
,
419 WM8350_GPIO_DEBOUNCE_OFF
);
421 wm8350_gpio_config(wm8350
, 9, WM8350_GPIO_DIR_OUT
,
422 WM8350_GPIO9_BATT_FAULT_OUT
, WM8350_GPIO_ACTIVE_LOW
,
423 WM8350_GPIO_PULL_NONE
, WM8350_GPIO_INVERT_OFF
,
424 WM8350_GPIO_DEBOUNCE_OFF
);
426 wm8350_register_regulator(wm8350
, WM8350_DCDC_1
, &sw1a_data
);
427 wm8350_register_regulator(wm8350
, WM8350_DCDC_3
, &viohi_data
);
428 wm8350_register_regulator(wm8350
, WM8350_DCDC_4
, &violo_data
);
429 wm8350_register_regulator(wm8350
, WM8350_DCDC_6
, &sw2a_data
);
430 wm8350_register_regulator(wm8350
, WM8350_LDO_1
, &ldo1_data
);
431 wm8350_register_regulator(wm8350
, WM8350_LDO_2
, &ldo2_data
);
432 wm8350_register_regulator(wm8350
, WM8350_LDO_3
, &vdig_data
);
433 wm8350_register_regulator(wm8350
, WM8350_LDO_4
, &ldo4_data
);
436 wm8350_dcdc_set_slot(wm8350
, WM8350_DCDC_5
, 1, 1,
437 WM8350_DC5_ERRACT_SHUTDOWN_CONV
);
438 wm8350_isink_set_flash(wm8350
, WM8350_ISINK_A
,
439 WM8350_ISINK_FLASH_DISABLE
,
440 WM8350_ISINK_FLASH_TRIG_BIT
,
441 WM8350_ISINK_FLASH_DUR_32MS
,
442 WM8350_ISINK_FLASH_ON_INSTANT
,
443 WM8350_ISINK_FLASH_OFF_INSTANT
,
444 WM8350_ISINK_FLASH_MODE_EN
);
445 wm8350_dcdc25_set_mode(wm8350
, WM8350_DCDC_5
,
446 WM8350_ISINK_MODE_BOOST
,
447 WM8350_ISINK_ILIM_NORMAL
,
449 WM8350_DC5_FBSRC_ISINKA
);
450 wm8350_register_led(wm8350
, 0, WM8350_DCDC_5
, WM8350_ISINK_A
,
453 wm8350
->codec
.platform_data
= &imx32ads_wm8350_setup
;
455 regulator_has_full_constraints();
460 static struct wm8350_platform_data __initdata mx31_wm8350_pdata
= {
461 .init
= mx31_wm8350_init
,
462 .irq_base
= MXC_BOARD_IRQ_START
+ MXC_MAX_EXP_IO_LINES
,
466 static struct i2c_board_info __initdata mx31ads_i2c1_devices
[] = {
467 #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
469 I2C_BOARD_INFO("wm8350", 0x1a),
470 .platform_data
= &mx31_wm8350_pdata
,
471 .irq
= IOMUX_TO_IRQ(MX31_PIN_GPIO1_3
),
476 static void mxc_init_i2c(void)
478 i2c_register_board_info(1, mx31ads_i2c1_devices
,
479 ARRAY_SIZE(mx31ads_i2c1_devices
));
481 mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MOSI
, IOMUX_CONFIG_ALT1
));
482 mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MISO
, IOMUX_CONFIG_ALT1
));
484 imx31_add_imx_i2c1(NULL
);
487 static unsigned int ssi_pins
[] = {
490 MX31_PIN_SRXD5__SRXD5
,
491 MX31_PIN_STXD5__STXD5
,
494 static void mxc_init_audio(void)
496 imx31_add_imx_ssi(0, NULL
);
497 mxc_iomux_setup_multiple_pins(ssi_pins
, ARRAY_SIZE(ssi_pins
), "ssi");
501 * This structure defines static mappings for the i.MX31ADS board.
503 static struct map_desc mx31ads_io_desc
[] __initdata
= {
505 .virtual = MX31_CS4_BASE_ADDR_VIRT
,
506 .pfn
= __phys_to_pfn(MX31_CS4_BASE_ADDR
),
507 .length
= MX31_CS4_SIZE
/ 2,
513 * Set up static virtual mappings.
515 static void __init
mx31ads_map_io(void)
518 iotable_init(mx31ads_io_desc
, ARRAY_SIZE(mx31ads_io_desc
));
521 static void __init
mx31ads_init_irq(void)
524 mx31ads_init_expio();
528 * Board specific initialization.
530 static void __init
mxc_board_init(void)
538 static void __init
mx31ads_timer_init(void)
540 mx31_clocks_init(26000000);
543 static struct sys_timer mx31ads_timer
= {
544 .init
= mx31ads_timer_init
,
548 * The following uses standard kernel macros defined in arch.h in order to
549 * initialize __mach_desc_MX31ADS data structure.
551 MACHINE_START(MX31ADS
, "Freescale MX31ADS")
552 /* Maintainer: Freescale Semiconductor, Inc. */
553 .boot_params
= MX3x_PHYS_OFFSET
+ 0x100,
554 .map_io
= mx31ads_map_io
,
555 .init_early
= imx31_init_early
,
556 .init_irq
= mx31ads_init_irq
,
557 .timer
= &mx31ads_timer
,
558 .init_machine
= mxc_board_init
,