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>
24 #include <linux/irqdomain.h>
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/time.h>
29 #include <asm/memory.h>
30 #include <asm/mach/map.h>
32 #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
33 #include <linux/mfd/wm8350/audio.h>
34 #include <linux/mfd/wm8350/core.h>
35 #include <linux/mfd/wm8350/pmic.h>
39 #include "devices-imx31.h"
41 #include "iomux-mx3.h"
43 /* Base address of PBC controller */
44 #define PBC_BASE_ADDRESS MX31_CS4_BASE_ADDR_VIRT
46 /* PBC Board interrupt status register */
47 #define PBC_INTSTATUS 0x000016
49 /* PBC Board interrupt current status register */
50 #define PBC_INTCURR_STATUS 0x000018
52 /* PBC Interrupt mask register set address */
53 #define PBC_INTMASK_SET 0x00001A
55 /* PBC Interrupt mask register clear address */
56 #define PBC_INTMASK_CLEAR 0x00001C
59 #define PBC_SC16C652_UARTA 0x010000
62 #define PBC_SC16C652_UARTB 0x010010
64 #define PBC_INTSTATUS_REG (PBC_INTSTATUS + PBC_BASE_ADDRESS)
65 #define PBC_INTMASK_SET_REG (PBC_INTMASK_SET + PBC_BASE_ADDRESS)
66 #define PBC_INTMASK_CLEAR_REG (PBC_INTMASK_CLEAR + PBC_BASE_ADDRESS)
68 #define EXPIO_INT_XUART_INTA 10
69 #define EXPIO_INT_XUART_INTB 11
71 #define MXC_MAX_EXP_IO_LINES 16
74 #define EXPIO_INT_ENET_INT 8
75 #define CS4_CS8900_MMIO_START 0x20000
77 static struct irq_domain
*domain
;
80 * The serial port definition structure.
82 static struct plat_serial8250_port serial_platform_data
[] = {
84 .membase
= (void *)(PBC_BASE_ADDRESS
+ PBC_SC16C652_UARTA
),
85 .mapbase
= (unsigned long)(MX31_CS4_BASE_ADDR
+ PBC_SC16C652_UARTA
),
89 .flags
= UPF_BOOT_AUTOCONF
| UPF_SKIP_TEST
| UPF_AUTO_IRQ
,
91 .membase
= (void *)(PBC_BASE_ADDRESS
+ PBC_SC16C652_UARTB
),
92 .mapbase
= (unsigned long)(MX31_CS4_BASE_ADDR
+ PBC_SC16C652_UARTB
),
96 .flags
= UPF_BOOT_AUTOCONF
| UPF_SKIP_TEST
| UPF_AUTO_IRQ
,
101 static struct platform_device serial_device
= {
102 .name
= "serial8250",
105 .platform_data
= serial_platform_data
,
109 static struct resource mx31ads_cs8900_resources
[] __initdata
= {
110 DEFINE_RES_MEM(MX31_CS4_BASE_ADDR
+ CS4_CS8900_MMIO_START
, SZ_64K
),
114 static const struct platform_device_info mx31ads_cs8900_devinfo __initconst
= {
117 .res
= mx31ads_cs8900_resources
,
118 .num_res
= ARRAY_SIZE(mx31ads_cs8900_resources
),
121 static int __init
mxc_init_extuart(void)
123 serial_platform_data
[0].irq
= irq_find_mapping(domain
,
124 EXPIO_INT_XUART_INTA
);
125 serial_platform_data
[1].irq
= irq_find_mapping(domain
,
126 EXPIO_INT_XUART_INTB
);
127 return platform_device_register(&serial_device
);
130 static void __init
mxc_init_ext_ethernet(void)
132 mx31ads_cs8900_resources
[1].start
=
133 irq_find_mapping(domain
, EXPIO_INT_ENET_INT
);
134 mx31ads_cs8900_resources
[1].end
=
135 irq_find_mapping(domain
, EXPIO_INT_ENET_INT
);
136 platform_device_register_full(
137 (struct platform_device_info
*)&mx31ads_cs8900_devinfo
);
140 static const struct imxuart_platform_data uart_pdata __initconst
= {
141 .flags
= IMXUART_HAVE_RTSCTS
,
144 static unsigned int uart_pins
[] = {
151 static inline void mxc_init_imx_uart(void)
153 mxc_iomux_setup_multiple_pins(uart_pins
, ARRAY_SIZE(uart_pins
), "uart-0");
154 imx31_add_imx_uart0(&uart_pdata
);
157 static void mx31ads_expio_irq_handler(u32 irq
, struct irq_desc
*desc
)
163 imr_val
= __raw_readw(PBC_INTMASK_SET_REG
);
164 int_valid
= __raw_readw(PBC_INTSTATUS_REG
) & imr_val
;
167 for (; int_valid
!= 0; int_valid
>>= 1, expio_irq
++) {
168 if ((int_valid
& 1) == 0)
171 generic_handle_irq(irq_find_mapping(domain
, expio_irq
));
176 * Disable an expio pin's interrupt by setting the bit in the imr.
177 * @param d an expio virtual irq description
179 static void expio_mask_irq(struct irq_data
*d
)
181 u32 expio
= d
->hwirq
;
182 /* mask the interrupt */
183 __raw_writew(1 << expio
, PBC_INTMASK_CLEAR_REG
);
184 __raw_readw(PBC_INTMASK_CLEAR_REG
);
188 * Acknowledge an expanded io pin's interrupt by clearing the bit in the isr.
189 * @param d an expio virtual irq description
191 static void expio_ack_irq(struct irq_data
*d
)
193 u32 expio
= d
->hwirq
;
194 /* clear the interrupt status */
195 __raw_writew(1 << expio
, PBC_INTSTATUS_REG
);
199 * Enable a expio pin's interrupt by clearing the bit in the imr.
200 * @param d an expio virtual irq description
202 static void expio_unmask_irq(struct irq_data
*d
)
204 u32 expio
= d
->hwirq
;
205 /* unmask the interrupt */
206 __raw_writew(1 << expio
, PBC_INTMASK_SET_REG
);
209 static struct irq_chip expio_irq_chip
= {
210 .name
= "EXPIO(CPLD)",
211 .irq_ack
= expio_ack_irq
,
212 .irq_mask
= expio_mask_irq
,
213 .irq_unmask
= expio_unmask_irq
,
216 static void __init
mx31ads_init_expio(void)
221 printk(KERN_INFO
"MX31ADS EXPIO(CPLD) hardware\n");
224 * Configure INT line as GPIO input
226 mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_GPIO1_4
, IOMUX_CONFIG_GPIO
), "expio");
228 /* disable the interrupt and clear the status */
229 __raw_writew(0xFFFF, PBC_INTMASK_CLEAR_REG
);
230 __raw_writew(0xFFFF, PBC_INTSTATUS_REG
);
232 irq_base
= irq_alloc_descs(-1, 0, MXC_MAX_EXP_IO_LINES
, numa_node_id());
233 WARN_ON(irq_base
< 0);
235 domain
= irq_domain_add_legacy(NULL
, MXC_MAX_EXP_IO_LINES
, irq_base
, 0,
236 &irq_domain_simple_ops
, NULL
);
239 for (i
= irq_base
; i
< irq_base
+ MXC_MAX_EXP_IO_LINES
; i
++) {
240 irq_set_chip_and_handler(i
, &expio_irq_chip
, handle_level_irq
);
241 set_irq_flags(i
, IRQF_VALID
);
243 irq
= gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_4
));
244 irq_set_irq_type(irq
, IRQ_TYPE_LEVEL_HIGH
);
245 irq_set_chained_handler(irq
, mx31ads_expio_irq_handler
);
248 #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
249 /* This section defines setup for the Wolfson Microelectronics
250 * 1133-EV1 PMU/audio board. When other PMU boards are supported the
251 * regulator definitions may be shared with them, but for now they can
252 * only be used with this board so would generate warnings about
253 * unused statics and some of the configuration is specific to this
258 static struct regulator_consumer_supply sw1a_consumers
[] = {
264 static struct regulator_init_data sw1a_data
= {
269 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
|
270 REGULATOR_CHANGE_MODE
,
271 .valid_modes_mask
= REGULATOR_MODE_NORMAL
|
275 .mode
= REGULATOR_MODE_NORMAL
,
278 .initial_state
= PM_SUSPEND_MEM
,
282 .num_consumer_supplies
= ARRAY_SIZE(sw1a_consumers
),
283 .consumer_supplies
= sw1a_consumers
,
286 /* System IO - High */
287 static struct regulator_init_data viohi_data
= {
294 .mode
= REGULATOR_MODE_NORMAL
,
297 .initial_state
= PM_SUSPEND_MEM
,
303 /* System IO - Low */
304 static struct regulator_init_data violo_data
= {
311 .mode
= REGULATOR_MODE_NORMAL
,
314 .initial_state
= PM_SUSPEND_MEM
,
321 static struct regulator_init_data sw2a_data
= {
326 .valid_modes_mask
= REGULATOR_MODE_NORMAL
,
329 .mode
= REGULATOR_MODE_NORMAL
,
333 .mode
= REGULATOR_MODE_NORMAL
,
338 .initial_state
= PM_SUSPEND_MEM
,
342 static struct regulator_init_data ldo1_data
= {
344 .name
= "VCAM/VMMC1/VMMC2",
347 .valid_modes_mask
= REGULATOR_MODE_NORMAL
,
348 .valid_ops_mask
= REGULATOR_CHANGE_STATUS
,
353 static struct regulator_consumer_supply ldo2_consumers
[] = {
354 { .supply
= "AVDD", .dev_name
= "1-001a" },
355 { .supply
= "HPVDD", .dev_name
= "1-001a" },
359 static struct regulator_init_data ldo2_data
= {
361 .name
= "VESIM/VSIM/AVDD",
364 .valid_modes_mask
= REGULATOR_MODE_NORMAL
,
365 .valid_ops_mask
= REGULATOR_CHANGE_STATUS
,
368 .num_consumer_supplies
= ARRAY_SIZE(ldo2_consumers
),
369 .consumer_supplies
= ldo2_consumers
,
373 static struct regulator_init_data vdig_data
= {
378 .valid_modes_mask
= REGULATOR_MODE_NORMAL
,
386 static struct regulator_init_data ldo4_data
= {
388 .name
= "VRF1/CVDD_2.775",
391 .valid_modes_mask
= REGULATOR_MODE_NORMAL
,
398 static struct wm8350_led_platform_data wm8350_led_data
= {
399 .name
= "wm8350:white",
400 .default_trigger
= "heartbeat",
404 static struct wm8350_audio_platform_data imx32ads_wm8350_setup
= {
405 .vmid_discharge_msecs
= 1000,
407 .cap_discharge_msecs
= 700,
408 .vmid_charge_msecs
= 700,
409 .vmid_s_curve
= WM8350_S_CURVE_SLOW
,
410 .dis_out4
= WM8350_DISCHARGE_SLOW
,
411 .dis_out3
= WM8350_DISCHARGE_SLOW
,
412 .dis_out2
= WM8350_DISCHARGE_SLOW
,
413 .dis_out1
= WM8350_DISCHARGE_SLOW
,
414 .vroi_out4
= WM8350_TIE_OFF_500R
,
415 .vroi_out3
= WM8350_TIE_OFF_500R
,
416 .vroi_out2
= WM8350_TIE_OFF_500R
,
417 .vroi_out1
= WM8350_TIE_OFF_500R
,
419 .codec_current_on
= WM8350_CODEC_ISEL_1_0
,
420 .codec_current_standby
= WM8350_CODEC_ISEL_0_5
,
421 .codec_current_charge
= WM8350_CODEC_ISEL_1_5
,
424 static int mx31_wm8350_init(struct wm8350
*wm8350
)
426 wm8350_gpio_config(wm8350
, 0, WM8350_GPIO_DIR_IN
,
427 WM8350_GPIO0_PWR_ON_IN
, WM8350_GPIO_ACTIVE_LOW
,
428 WM8350_GPIO_PULL_UP
, WM8350_GPIO_INVERT_OFF
,
429 WM8350_GPIO_DEBOUNCE_ON
);
431 wm8350_gpio_config(wm8350
, 3, WM8350_GPIO_DIR_IN
,
432 WM8350_GPIO3_PWR_OFF_IN
, WM8350_GPIO_ACTIVE_HIGH
,
433 WM8350_GPIO_PULL_DOWN
, WM8350_GPIO_INVERT_OFF
,
434 WM8350_GPIO_DEBOUNCE_ON
);
436 wm8350_gpio_config(wm8350
, 4, WM8350_GPIO_DIR_IN
,
437 WM8350_GPIO4_MR_IN
, WM8350_GPIO_ACTIVE_HIGH
,
438 WM8350_GPIO_PULL_DOWN
, WM8350_GPIO_INVERT_OFF
,
439 WM8350_GPIO_DEBOUNCE_OFF
);
441 wm8350_gpio_config(wm8350
, 7, WM8350_GPIO_DIR_IN
,
442 WM8350_GPIO7_HIBERNATE_IN
, WM8350_GPIO_ACTIVE_HIGH
,
443 WM8350_GPIO_PULL_DOWN
, WM8350_GPIO_INVERT_OFF
,
444 WM8350_GPIO_DEBOUNCE_OFF
);
446 wm8350_gpio_config(wm8350
, 6, WM8350_GPIO_DIR_OUT
,
447 WM8350_GPIO6_SDOUT_OUT
, WM8350_GPIO_ACTIVE_HIGH
,
448 WM8350_GPIO_PULL_NONE
, WM8350_GPIO_INVERT_OFF
,
449 WM8350_GPIO_DEBOUNCE_OFF
);
451 wm8350_gpio_config(wm8350
, 8, WM8350_GPIO_DIR_OUT
,
452 WM8350_GPIO8_VCC_FAULT_OUT
, WM8350_GPIO_ACTIVE_LOW
,
453 WM8350_GPIO_PULL_NONE
, WM8350_GPIO_INVERT_OFF
,
454 WM8350_GPIO_DEBOUNCE_OFF
);
456 wm8350_gpio_config(wm8350
, 9, WM8350_GPIO_DIR_OUT
,
457 WM8350_GPIO9_BATT_FAULT_OUT
, WM8350_GPIO_ACTIVE_LOW
,
458 WM8350_GPIO_PULL_NONE
, WM8350_GPIO_INVERT_OFF
,
459 WM8350_GPIO_DEBOUNCE_OFF
);
461 wm8350_register_regulator(wm8350
, WM8350_DCDC_1
, &sw1a_data
);
462 wm8350_register_regulator(wm8350
, WM8350_DCDC_3
, &viohi_data
);
463 wm8350_register_regulator(wm8350
, WM8350_DCDC_4
, &violo_data
);
464 wm8350_register_regulator(wm8350
, WM8350_DCDC_6
, &sw2a_data
);
465 wm8350_register_regulator(wm8350
, WM8350_LDO_1
, &ldo1_data
);
466 wm8350_register_regulator(wm8350
, WM8350_LDO_2
, &ldo2_data
);
467 wm8350_register_regulator(wm8350
, WM8350_LDO_3
, &vdig_data
);
468 wm8350_register_regulator(wm8350
, WM8350_LDO_4
, &ldo4_data
);
471 wm8350_dcdc_set_slot(wm8350
, WM8350_DCDC_5
, 1, 1,
472 WM8350_DC5_ERRACT_SHUTDOWN_CONV
);
473 wm8350_isink_set_flash(wm8350
, WM8350_ISINK_A
,
474 WM8350_ISINK_FLASH_DISABLE
,
475 WM8350_ISINK_FLASH_TRIG_BIT
,
476 WM8350_ISINK_FLASH_DUR_32MS
,
477 WM8350_ISINK_FLASH_ON_INSTANT
,
478 WM8350_ISINK_FLASH_OFF_INSTANT
,
479 WM8350_ISINK_FLASH_MODE_EN
);
480 wm8350_dcdc25_set_mode(wm8350
, WM8350_DCDC_5
,
481 WM8350_ISINK_MODE_BOOST
,
482 WM8350_ISINK_ILIM_NORMAL
,
484 WM8350_DC5_FBSRC_ISINKA
);
485 wm8350_register_led(wm8350
, 0, WM8350_DCDC_5
, WM8350_ISINK_A
,
488 wm8350
->codec
.platform_data
= &imx32ads_wm8350_setup
;
490 regulator_has_full_constraints();
495 static struct wm8350_platform_data __initdata mx31_wm8350_pdata
= {
496 .init
= mx31_wm8350_init
,
500 static struct i2c_board_info __initdata mx31ads_i2c1_devices
[] = {
501 #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
503 I2C_BOARD_INFO("wm8350", 0x1a),
504 .platform_data
= &mx31_wm8350_pdata
,
505 /* irq number is run-time assigned */
510 static void __init
mxc_init_i2c(void)
512 #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
513 mx31ads_i2c1_devices
[0].irq
=
514 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3
));
516 i2c_register_board_info(1, mx31ads_i2c1_devices
,
517 ARRAY_SIZE(mx31ads_i2c1_devices
));
519 mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MOSI
, IOMUX_CONFIG_ALT1
));
520 mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MISO
, IOMUX_CONFIG_ALT1
));
522 imx31_add_imx_i2c1(NULL
);
525 static unsigned int ssi_pins
[] = {
528 MX31_PIN_SRXD5__SRXD5
,
529 MX31_PIN_STXD5__STXD5
,
532 static void __init
mxc_init_audio(void)
534 imx31_add_imx_ssi(0, NULL
);
535 mxc_iomux_setup_multiple_pins(ssi_pins
, ARRAY_SIZE(ssi_pins
), "ssi");
539 * Static mappings, starting from the CS4 start address up to the start address
542 static struct map_desc mx31ads_io_desc
[] __initdata
= {
544 .virtual = (unsigned long)MX31_CS4_BASE_ADDR_VIRT
,
545 .pfn
= __phys_to_pfn(MX31_CS4_BASE_ADDR
),
546 .length
= CS4_CS8900_MMIO_START
,
551 static void __init
mx31ads_map_io(void)
554 iotable_init(mx31ads_io_desc
, ARRAY_SIZE(mx31ads_io_desc
));
557 static void __init
mx31ads_init_irq(void)
560 mx31ads_init_expio();
563 static void __init
mx31ads_init(void)
571 mxc_init_ext_ethernet();
574 static void __init
mx31ads_timer_init(void)
576 mx31_clocks_init(26000000);
579 MACHINE_START(MX31ADS
, "Freescale MX31ADS")
580 /* Maintainer: Freescale Semiconductor, Inc. */
581 .atag_offset
= 0x100,
582 .map_io
= mx31ads_map_io
,
583 .init_early
= imx31_init_early
,
584 .init_irq
= mx31ads_init_irq
,
585 .handle_irq
= imx31_handle_irq
,
586 .init_time
= mx31ads_timer_init
,
587 .init_machine
= mx31ads_init
,
588 .restart
= mxc_restart
,