cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mioa701.c (20442B)


      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Handles the Mitac Mio A701 Board
      4 *
      5 * Copyright (C) 2008 Robert Jarzmik
      6 */
      7
      8#include <linux/kernel.h>
      9#include <linux/init.h>
     10#include <linux/platform_device.h>
     11#include <linux/syscore_ops.h>
     12#include <linux/input.h>
     13#include <linux/delay.h>
     14#include <linux/gpio_keys.h>
     15#include <linux/pwm.h>
     16#include <linux/pwm_backlight.h>
     17#include <linux/rtc.h>
     18#include <linux/leds.h>
     19#include <linux/gpio.h>
     20#include <linux/gpio/machine.h>
     21#include <linux/interrupt.h>
     22#include <linux/irq.h>
     23#include <linux/pda_power.h>
     24#include <linux/power_supply.h>
     25#include <linux/wm97xx.h>
     26#include <linux/mtd/physmap.h>
     27#include <linux/reboot.h>
     28#include <linux/regulator/fixed.h>
     29#include <linux/regulator/max1586.h>
     30#include <linux/slab.h>
     31#include <linux/platform_data/i2c-pxa.h>
     32
     33#include <asm/mach-types.h>
     34#include <asm/mach/arch.h>
     35
     36#include "pxa27x.h"
     37#include "regs-rtc.h"
     38#include <linux/platform_data/keypad-pxa27x.h>
     39#include <linux/platform_data/video-pxafb.h>
     40#include <linux/platform_data/mmc-pxamci.h>
     41#include "udc.h"
     42#include "pxa27x-udc.h"
     43#include <linux/platform_data/media/camera-pxa.h>
     44#include <linux/platform_data/asoc-pxa.h>
     45#include "smemc.h"
     46
     47#include "mioa701.h"
     48
     49#include "generic.h"
     50#include "devices.h"
     51
     52static unsigned long mioa701_pin_config[] = {
     53	/* Mio global */
     54	MIO_CFG_OUT(GPIO9_CHARGE_EN, AF0, DRIVE_LOW),
     55	MIO_CFG_OUT(GPIO18_POWEROFF, AF0, DRIVE_LOW),
     56	MFP_CFG_OUT(GPIO3, AF0, DRIVE_HIGH),
     57	MFP_CFG_OUT(GPIO4, AF0, DRIVE_HIGH),
     58	MIO_CFG_IN(GPIO80_MAYBE_CHARGE_VDROP, AF0),
     59
     60	/* Backlight PWM 0 */
     61	GPIO16_PWM0_OUT,
     62
     63	/* MMC */
     64	GPIO32_MMC_CLK,
     65	GPIO92_MMC_DAT_0,
     66	GPIO109_MMC_DAT_1,
     67	GPIO110_MMC_DAT_2,
     68	GPIO111_MMC_DAT_3,
     69	GPIO112_MMC_CMD,
     70	MIO_CFG_IN(GPIO78_SDIO_RO, AF0),
     71	MIO_CFG_IN(GPIO15_SDIO_INSERT, AF0),
     72	MIO_CFG_OUT(GPIO91_SDIO_EN, AF0, DRIVE_LOW),
     73
     74	/* USB */
     75	MIO_CFG_IN(GPIO13_nUSB_DETECT, AF0),
     76	MIO_CFG_OUT(GPIO22_USB_ENABLE, AF0, DRIVE_LOW),
     77
     78	/* LCD */
     79	GPIOxx_LCD_TFT_16BPP,
     80
     81	/* QCI */
     82	GPIO12_CIF_DD_7,
     83	GPIO17_CIF_DD_6,
     84	GPIO50_CIF_DD_3,
     85	GPIO51_CIF_DD_2,
     86	GPIO52_CIF_DD_4,
     87	GPIO53_CIF_MCLK,
     88	GPIO54_CIF_PCLK,
     89	GPIO55_CIF_DD_1,
     90	GPIO81_CIF_DD_0,
     91	GPIO82_CIF_DD_5,
     92	GPIO84_CIF_FV,
     93	GPIO85_CIF_LV,
     94	MIO_CFG_OUT(GPIO56_MT9M111_nOE, AF0, DRIVE_LOW),
     95
     96	/* Bluetooth */
     97	MIO_CFG_IN(GPIO14_BT_nACTIVITY, AF0),
     98	GPIO44_BTUART_CTS,
     99	GPIO42_BTUART_RXD,
    100	GPIO45_BTUART_RTS,
    101	GPIO43_BTUART_TXD,
    102	MIO_CFG_OUT(GPIO83_BT_ON, AF0, DRIVE_LOW),
    103	MIO_CFG_OUT(GPIO77_BT_UNKNOWN1, AF0, DRIVE_HIGH),
    104	MIO_CFG_OUT(GPIO86_BT_MAYBE_nRESET, AF0, DRIVE_HIGH),
    105
    106	/* GPS */
    107	MIO_CFG_OUT(GPIO23_GPS_UNKNOWN1, AF0, DRIVE_LOW),
    108	MIO_CFG_OUT(GPIO26_GPS_ON, AF0, DRIVE_LOW),
    109	MIO_CFG_OUT(GPIO27_GPS_RESET, AF0, DRIVE_LOW),
    110	MIO_CFG_OUT(GPIO106_GPS_UNKNOWN2, AF0, DRIVE_LOW),
    111	MIO_CFG_OUT(GPIO107_GPS_UNKNOWN3, AF0, DRIVE_LOW),
    112	GPIO46_STUART_RXD,
    113	GPIO47_STUART_TXD,
    114
    115	/* GSM */
    116	MIO_CFG_OUT(GPIO24_GSM_MOD_RESET_CMD, AF0, DRIVE_LOW),
    117	MIO_CFG_OUT(GPIO88_GSM_nMOD_ON_CMD, AF0, DRIVE_HIGH),
    118	MIO_CFG_OUT(GPIO90_GSM_nMOD_OFF_CMD, AF0, DRIVE_HIGH),
    119	MIO_CFG_OUT(GPIO114_GSM_nMOD_DTE_UART_STATE, AF0, DRIVE_HIGH),
    120	MIO_CFG_IN(GPIO25_GSM_MOD_ON_STATE, AF0),
    121	MIO_CFG_IN(GPIO113_GSM_EVENT, AF0) | WAKEUP_ON_EDGE_BOTH,
    122	GPIO34_FFUART_RXD,
    123	GPIO35_FFUART_CTS,
    124	GPIO36_FFUART_DCD,
    125	GPIO37_FFUART_DSR,
    126	GPIO39_FFUART_TXD,
    127	GPIO40_FFUART_DTR,
    128	GPIO41_FFUART_RTS,
    129
    130	/* Sound */
    131	GPIO28_AC97_BITCLK,
    132	GPIO29_AC97_SDATA_IN_0,
    133	GPIO30_AC97_SDATA_OUT,
    134	GPIO31_AC97_SYNC,
    135	GPIO89_AC97_SYSCLK,
    136	MIO_CFG_IN(GPIO12_HPJACK_INSERT, AF0),
    137
    138	/* Leds */
    139	MIO_CFG_OUT(GPIO10_LED_nCharging, AF0, DRIVE_HIGH),
    140	MIO_CFG_OUT(GPIO97_LED_nBlue, AF0, DRIVE_HIGH),
    141	MIO_CFG_OUT(GPIO98_LED_nOrange, AF0, DRIVE_HIGH),
    142	MIO_CFG_OUT(GPIO82_LED_nVibra, AF0, DRIVE_HIGH),
    143	MIO_CFG_OUT(GPIO115_LED_nKeyboard, AF0, DRIVE_HIGH),
    144
    145	/* Keyboard */
    146	MIO_CFG_IN(GPIO0_KEY_POWER, AF0) | WAKEUP_ON_EDGE_BOTH,
    147	MIO_CFG_IN(GPIO93_KEY_VOLUME_UP, AF0),
    148	MIO_CFG_IN(GPIO94_KEY_VOLUME_DOWN, AF0),
    149	GPIO100_KP_MKIN_0,
    150	GPIO101_KP_MKIN_1,
    151	GPIO102_KP_MKIN_2,
    152	GPIO103_KP_MKOUT_0,
    153	GPIO104_KP_MKOUT_1,
    154	GPIO105_KP_MKOUT_2,
    155
    156	/* I2C */
    157	GPIO117_I2C_SCL,
    158	GPIO118_I2C_SDA,
    159
    160	/* Unknown */
    161	MFP_CFG_IN(GPIO20, AF0),
    162	MFP_CFG_IN(GPIO21, AF0),
    163	MFP_CFG_IN(GPIO33, AF0),
    164	MFP_CFG_OUT(GPIO49, AF0, DRIVE_HIGH),
    165	MFP_CFG_OUT(GPIO57, AF0, DRIVE_HIGH),
    166	MFP_CFG_IN(GPIO96, AF0),
    167	MFP_CFG_OUT(GPIO116, AF0, DRIVE_HIGH),
    168};
    169
    170static struct pwm_lookup mioa701_pwm_lookup[] = {
    171	PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 4000 * 1024,
    172		   PWM_POLARITY_NORMAL),
    173};
    174
    175/* LCD Screen and Backlight */
    176static struct platform_pwm_backlight_data mioa701_backlight_data = {
    177	.max_brightness	= 100,
    178	.dft_brightness	= 50,
    179};
    180
    181/*
    182 * LTM0305A776C LCD panel timings
    183 *
    184 * see:
    185 *  - the LTM0305A776C datasheet,
    186 *  - and the PXA27x Programmers' manual
    187 */
    188static struct pxafb_mode_info mioa701_ltm0305a776c = {
    189	.pixclock		= 220000,	/* CLK=4.545 MHz */
    190	.xres			= 240,
    191	.yres			= 320,
    192	.bpp			= 16,
    193	.hsync_len		= 4,
    194	.vsync_len		= 2,
    195	.left_margin		= 6,
    196	.right_margin		= 4,
    197	.upper_margin		= 5,
    198	.lower_margin		= 3,
    199};
    200
    201static void mioa701_lcd_power(int on, struct fb_var_screeninfo *si)
    202{
    203	gpio_set_value(GPIO87_LCD_POWER, on);
    204}
    205
    206static struct pxafb_mach_info mioa701_pxafb_info = {
    207	.modes			= &mioa701_ltm0305a776c,
    208	.num_modes		= 1,
    209	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
    210	.pxafb_lcd_power	= mioa701_lcd_power,
    211};
    212
    213/*
    214 * Keyboard configuration
    215 */
    216static const unsigned int mioa701_matrix_keys[] = {
    217	KEY(0, 0, KEY_UP),
    218	KEY(0, 1, KEY_RIGHT),
    219	KEY(0, 2, KEY_MEDIA),
    220	KEY(1, 0, KEY_DOWN),
    221	KEY(1, 1, KEY_ENTER),
    222	KEY(1, 2, KEY_CONNECT),	/* GPS key */
    223	KEY(2, 0, KEY_LEFT),
    224	KEY(2, 1, KEY_PHONE),	/* Phone Green key */
    225	KEY(2, 2, KEY_CAMERA)	/* Camera key */
    226};
    227
    228static struct matrix_keymap_data mioa701_matrix_keymap_data = {
    229	.keymap			= mioa701_matrix_keys,
    230	.keymap_size		= ARRAY_SIZE(mioa701_matrix_keys),
    231};
    232
    233static struct pxa27x_keypad_platform_data mioa701_keypad_info = {
    234	.matrix_key_rows = 3,
    235	.matrix_key_cols = 3,
    236	.matrix_keymap_data = &mioa701_matrix_keymap_data,
    237};
    238
    239/*
    240 * GPIO Key Configuration
    241 */
    242#define MIO_KEY(key, _gpio, _desc, _wakeup) \
    243	{ .code = (key), .gpio = (_gpio), .active_low = 0, \
    244	.desc = (_desc), .type = EV_KEY, .wakeup = (_wakeup) }
    245static struct gpio_keys_button mioa701_button_table[] = {
    246	MIO_KEY(KEY_EXIT, GPIO0_KEY_POWER, "Power button", 1),
    247	MIO_KEY(KEY_VOLUMEUP, GPIO93_KEY_VOLUME_UP, "Volume up", 0),
    248	MIO_KEY(KEY_VOLUMEDOWN, GPIO94_KEY_VOLUME_DOWN, "Volume down", 0),
    249	MIO_KEY(KEY_HP, GPIO12_HPJACK_INSERT, "HP jack detect", 0)
    250};
    251
    252static struct gpio_keys_platform_data mioa701_gpio_keys_data = {
    253	.buttons  = mioa701_button_table,
    254	.nbuttons = ARRAY_SIZE(mioa701_button_table),
    255};
    256
    257/*
    258 * Leds and vibrator
    259 */
    260#define ONE_LED(_gpio, _name) \
    261{ .gpio = (_gpio), .name = (_name), .active_low = true }
    262static struct gpio_led gpio_leds[] = {
    263	ONE_LED(GPIO10_LED_nCharging, "mioa701:charging"),
    264	ONE_LED(GPIO97_LED_nBlue, "mioa701:blue"),
    265	ONE_LED(GPIO98_LED_nOrange, "mioa701:orange"),
    266	ONE_LED(GPIO82_LED_nVibra, "mioa701:vibra"),
    267	ONE_LED(GPIO115_LED_nKeyboard, "mioa701:keyboard")
    268};
    269
    270static struct gpio_led_platform_data gpio_led_info = {
    271	.leds = gpio_leds,
    272	.num_leds = ARRAY_SIZE(gpio_leds),
    273};
    274
    275/*
    276 * GSM Sagem XS200 chip
    277 *
    278 * GSM handling was purged from kernel. For history, this is the way to go :
    279 *   - init : GPIO24_GSM_MOD_RESET_CMD = 0, GPIO114_GSM_nMOD_DTE_UART_STATE = 1
    280 *            GPIO88_GSM_nMOD_ON_CMD = 1, GPIO90_GSM_nMOD_OFF_CMD = 1
    281 *   - reset : GPIO24_GSM_MOD_RESET_CMD = 1, msleep(100),
    282 *             GPIO24_GSM_MOD_RESET_CMD = 0
    283 *   - turn on  : GPIO88_GSM_nMOD_ON_CMD = 0, msleep(1000),
    284 *                GPIO88_GSM_nMOD_ON_CMD = 1
    285 *   - turn off : GPIO90_GSM_nMOD_OFF_CMD = 0, msleep(1000),
    286 *                GPIO90_GSM_nMOD_OFF_CMD = 1
    287 */
    288static int is_gsm_on(void)
    289{
    290	int is_on;
    291
    292	is_on = !!gpio_get_value(GPIO25_GSM_MOD_ON_STATE);
    293	return is_on;
    294}
    295
    296irqreturn_t gsm_on_irq(int irq, void *p)
    297{
    298	printk(KERN_DEBUG "Mioa701: GSM status changed to %s\n",
    299	       is_gsm_on() ? "on" : "off");
    300	return IRQ_HANDLED;
    301}
    302
    303static struct gpio gsm_gpios[] = {
    304	{ GPIO25_GSM_MOD_ON_STATE, GPIOF_IN, "GSM state" },
    305	{ GPIO113_GSM_EVENT, GPIOF_IN, "GSM event" },
    306};
    307
    308static int __init gsm_init(void)
    309{
    310	int rc;
    311
    312	rc = gpio_request_array(ARRAY_AND_SIZE(gsm_gpios));
    313	if (rc)
    314		goto err_gpio;
    315	rc = request_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), gsm_on_irq,
    316			 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
    317			 "GSM XS200 Power Irq", NULL);
    318	if (rc)
    319		goto err_irq;
    320
    321	gpio_set_wake(GPIO113_GSM_EVENT, 1);
    322	return 0;
    323
    324err_irq:
    325	printk(KERN_ERR "Mioa701: Can't request GSM_ON irq\n");
    326	gpio_free_array(ARRAY_AND_SIZE(gsm_gpios));
    327err_gpio:
    328	printk(KERN_ERR "Mioa701: gsm not available\n");
    329	return rc;
    330}
    331
    332static void gsm_exit(void)
    333{
    334	free_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), NULL);
    335	gpio_free_array(ARRAY_AND_SIZE(gsm_gpios));
    336}
    337
    338/*
    339 * Bluetooth BRF6150 chip
    340 *
    341 * BT handling was purged from kernel. For history, this is the way to go :
    342 * - turn on  : GPIO83_BT_ON = 1
    343 * - turn off : GPIO83_BT_ON = 0
    344 */
    345
    346/*
    347 * GPS Sirf Star III chip
    348 *
    349 * GPS handling was purged from kernel. For history, this is the way to go :
    350 * - init : GPIO23_GPS_UNKNOWN1 = 1, GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
    351 *          GPIO106_GPS_UNKNOWN2 = 0, GPIO107_GPS_UNKNOWN3 = 0
    352 * - turn on  : GPIO27_GPS_RESET = 1, GPIO26_GPS_ON = 1
    353 * - turn off : GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
    354 */
    355
    356/*
    357 * USB UDC
    358 */
    359static int is_usb_connected(void)
    360{
    361	return !gpio_get_value(GPIO13_nUSB_DETECT);
    362}
    363
    364static struct pxa2xx_udc_mach_info mioa701_udc_info = {
    365	.udc_is_connected = is_usb_connected,
    366	.gpio_pullup	  = GPIO22_USB_ENABLE,
    367};
    368
    369static struct gpiod_lookup_table gpio_vbus_gpiod_table = {
    370	.dev_id = "gpio-vbus",
    371	.table = {
    372		GPIO_LOOKUP("gpio-pxa", GPIO13_nUSB_DETECT,
    373			    "vbus", GPIO_ACTIVE_LOW),
    374		{ },
    375	},
    376};
    377
    378/*
    379 * SDIO/MMC Card controller
    380 */
    381/**
    382 * The card detect interrupt isn't debounced so we delay it by 250ms
    383 * to give the card a chance to fully insert/eject.
    384 */
    385static struct pxamci_platform_data mioa701_mci_info = {
    386	.detect_delay_ms	= 250,
    387	.ocr_mask 		= MMC_VDD_32_33 | MMC_VDD_33_34,
    388};
    389
    390static struct gpiod_lookup_table mioa701_mci_gpio_table = {
    391	.dev_id = "pxa2xx-mci.0",
    392	.table = {
    393		/* Card detect on GPIO 15 */
    394		GPIO_LOOKUP("gpio-pxa", GPIO15_SDIO_INSERT,
    395			    "cd", GPIO_ACTIVE_LOW),
    396		/* Write protect on GPIO 78 */
    397		GPIO_LOOKUP("gpio-pxa", GPIO78_SDIO_RO,
    398			    "wp", GPIO_ACTIVE_LOW),
    399		/* Power on GPIO 91 */
    400		GPIO_LOOKUP("gpio-pxa", GPIO91_SDIO_EN,
    401			    "power", GPIO_ACTIVE_HIGH),
    402		{ },
    403	},
    404};
    405
    406/* FlashRAM */
    407static struct resource docg3_resource = {
    408	.start = PXA_CS0_PHYS,
    409	.end   = PXA_CS0_PHYS + SZ_8K - 1,
    410	.flags = IORESOURCE_MEM,
    411};
    412
    413static struct platform_device docg3 = {
    414	.name	       = "docg3",
    415	.id	       = -1,
    416	.resource      = &docg3_resource,
    417	.num_resources = 1,
    418	.dev = {
    419		.platform_data = NULL,
    420	},
    421};
    422
    423/*
    424 * Suspend/Resume bootstrap management
    425 *
    426 * MIO A701 reboot sequence is highly ROM dependent. From the one dissassembled,
    427 * this sequence is as follows :
    428 *   - disables interrupts
    429 *   - initialize SDRAM (self refresh RAM into active RAM)
    430 *   - initialize GPIOs (depends on value at 0xa020b020)
    431 *   - initialize coprossessors
    432 *   - if edge detect on PWR_SCL(GPIO3), then proceed to cold start
    433 *   - or if value at 0xa020b000 not equal to 0x0f0f0f0f, proceed to cold start
    434 *   - else do a resume, ie. jump to addr 0xa0100000
    435 */
    436#define RESUME_ENABLE_ADDR	0xa020b000
    437#define RESUME_ENABLE_VAL	0x0f0f0f0f
    438#define RESUME_BT_ADDR		0xa020b020
    439#define RESUME_UNKNOWN_ADDR	0xa020b024
    440#define RESUME_VECTOR_ADDR	0xa0100000
    441#define BOOTSTRAP_WORDS		mioa701_bootstrap_lg/4
    442
    443static u32 *save_buffer;
    444
    445static void install_bootstrap(void)
    446{
    447	int i;
    448	u32 *rom_bootstrap  = phys_to_virt(RESUME_VECTOR_ADDR);
    449	u32 *src = &mioa701_bootstrap;
    450
    451	for (i = 0; i < BOOTSTRAP_WORDS; i++)
    452		rom_bootstrap[i] = src[i];
    453}
    454
    455
    456static int mioa701_sys_suspend(void)
    457{
    458	int i = 0, is_bt_on;
    459	u32 *mem_resume_vector	= phys_to_virt(RESUME_VECTOR_ADDR);
    460	u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR);
    461	u32 *mem_resume_bt	= phys_to_virt(RESUME_BT_ADDR);
    462	u32 *mem_resume_unknown	= phys_to_virt(RESUME_UNKNOWN_ADDR);
    463
    464	/* Devices prepare suspend */
    465	is_bt_on = !!gpio_get_value(GPIO83_BT_ON);
    466	pxa2xx_mfp_set_lpm(GPIO83_BT_ON,
    467			   is_bt_on ? MFP_LPM_DRIVE_HIGH : MFP_LPM_DRIVE_LOW);
    468
    469	for (i = 0; i < BOOTSTRAP_WORDS; i++)
    470		save_buffer[i] = mem_resume_vector[i];
    471	save_buffer[i++] = *mem_resume_enabler;
    472	save_buffer[i++] = *mem_resume_bt;
    473	save_buffer[i++] = *mem_resume_unknown;
    474
    475	*mem_resume_enabler = RESUME_ENABLE_VAL;
    476	*mem_resume_bt	    = is_bt_on;
    477
    478	install_bootstrap();
    479	return 0;
    480}
    481
    482static void mioa701_sys_resume(void)
    483{
    484	int i = 0;
    485	u32 *mem_resume_vector	= phys_to_virt(RESUME_VECTOR_ADDR);
    486	u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR);
    487	u32 *mem_resume_bt	= phys_to_virt(RESUME_BT_ADDR);
    488	u32 *mem_resume_unknown	= phys_to_virt(RESUME_UNKNOWN_ADDR);
    489
    490	for (i = 0; i < BOOTSTRAP_WORDS; i++)
    491		mem_resume_vector[i] = save_buffer[i];
    492	*mem_resume_enabler = save_buffer[i++];
    493	*mem_resume_bt	    = save_buffer[i++];
    494	*mem_resume_unknown = save_buffer[i++];
    495}
    496
    497static struct syscore_ops mioa701_syscore_ops = {
    498	.suspend	= mioa701_sys_suspend,
    499	.resume		= mioa701_sys_resume,
    500};
    501
    502static int __init bootstrap_init(void)
    503{
    504	int save_size = mioa701_bootstrap_lg + (sizeof(u32) * 3);
    505
    506	register_syscore_ops(&mioa701_syscore_ops);
    507
    508	save_buffer = kmalloc(save_size, GFP_KERNEL);
    509	if (!save_buffer)
    510		return -ENOMEM;
    511	printk(KERN_INFO "MioA701: allocated %d bytes for bootstrap\n",
    512	       save_size);
    513	return 0;
    514}
    515
    516static void bootstrap_exit(void)
    517{
    518	kfree(save_buffer);
    519	unregister_syscore_ops(&mioa701_syscore_ops);
    520
    521	printk(KERN_CRIT "Unregistering mioa701 suspend will hang next"
    522	       "resume !!!\n");
    523}
    524
    525/*
    526 * Power Supply
    527 */
    528static char *supplicants[] = {
    529	"mioa701_battery"
    530};
    531
    532static int is_ac_connected(void)
    533{
    534	return gpio_get_value(GPIO96_AC_DETECT);
    535}
    536
    537static void mioa701_set_charge(int flags)
    538{
    539	gpio_set_value(GPIO9_CHARGE_EN, (flags == PDA_POWER_CHARGE_USB));
    540}
    541
    542static struct pda_power_pdata power_pdata = {
    543	.is_ac_online	= is_ac_connected,
    544	.is_usb_online	= is_usb_connected,
    545	.set_charge = mioa701_set_charge,
    546	.supplied_to = supplicants,
    547	.num_supplicants = ARRAY_SIZE(supplicants),
    548};
    549
    550static struct resource power_resources[] = {
    551	[0] = {
    552		.name	= "ac",
    553		.start	= PXA_GPIO_TO_IRQ(GPIO96_AC_DETECT),
    554		.end	= PXA_GPIO_TO_IRQ(GPIO96_AC_DETECT),
    555		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
    556		IORESOURCE_IRQ_LOWEDGE,
    557	},
    558	[1] = {
    559		.name	= "usb",
    560		.start	= PXA_GPIO_TO_IRQ(GPIO13_nUSB_DETECT),
    561		.end	= PXA_GPIO_TO_IRQ(GPIO13_nUSB_DETECT),
    562		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
    563		IORESOURCE_IRQ_LOWEDGE,
    564	},
    565};
    566
    567static struct platform_device power_dev = {
    568	.name		= "pda-power",
    569	.id		= -1,
    570	.resource	= power_resources,
    571	.num_resources	= ARRAY_SIZE(power_resources),
    572	.dev = {
    573		.platform_data	= &power_pdata,
    574	},
    575};
    576
    577static struct wm97xx_batt_pdata mioa701_battery_data = {
    578	.batt_aux	= WM97XX_AUX_ID1,
    579	.temp_aux	= -1,
    580	.min_voltage	= 0xc00,
    581	.max_voltage	= 0xfc0,
    582	.batt_tech	= POWER_SUPPLY_TECHNOLOGY_LION,
    583	.batt_div	= 1,
    584	.batt_mult	= 1,
    585	.batt_name	= "mioa701_battery",
    586};
    587
    588static struct wm97xx_pdata mioa701_wm97xx_pdata = {
    589	.batt_pdata	= &mioa701_battery_data,
    590};
    591
    592/*
    593 * Voltage regulation
    594 */
    595static struct regulator_consumer_supply max1586_consumers[] = {
    596	REGULATOR_SUPPLY("vcc_core", NULL),
    597};
    598
    599static struct regulator_init_data max1586_v3_info = {
    600	.constraints = {
    601		.name = "vcc_core range",
    602		.min_uV = 1000000,
    603		.max_uV = 1705000,
    604		.always_on = 1,
    605		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
    606	},
    607	.num_consumer_supplies = ARRAY_SIZE(max1586_consumers),
    608	.consumer_supplies = max1586_consumers,
    609};
    610
    611static struct max1586_subdev_data max1586_subdevs[] = {
    612	{ .name = "vcc_core", .id = MAX1586_V3,
    613	  .platform_data = &max1586_v3_info },
    614};
    615
    616static struct max1586_platform_data max1586_info = {
    617	.subdevs = max1586_subdevs,
    618	.num_subdevs = ARRAY_SIZE(max1586_subdevs),
    619	.v3_gain = MAX1586_GAIN_NO_R24, /* 700..1475 mV */
    620};
    621
    622/*
    623 * Camera interface
    624 */
    625struct pxacamera_platform_data mioa701_pxacamera_platform_data = {
    626	.flags  = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
    627		PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
    628	.mclk_10khz = 5000,
    629	.sensor_i2c_adapter_id = 0,
    630	.sensor_i2c_address = 0x5d,
    631};
    632
    633static struct i2c_board_info __initdata mioa701_pi2c_devices[] = {
    634	{
    635		I2C_BOARD_INFO("max1586", 0x14),
    636		.platform_data = &max1586_info,
    637	},
    638};
    639
    640/* Board I2C devices. */
    641static struct i2c_board_info mioa701_i2c_devices[] = {
    642	{
    643		I2C_BOARD_INFO("mt9m111", 0x5d),
    644	},
    645};
    646
    647struct i2c_pxa_platform_data i2c_pdata = {
    648	.fast_mode = 1,
    649};
    650
    651static pxa2xx_audio_ops_t mioa701_ac97_info = {
    652	.reset_gpio = 95,
    653	.codec_pdata = { &mioa701_wm97xx_pdata, },
    654};
    655
    656/*
    657 * Mio global
    658 */
    659
    660/* Devices */
    661#define MIO_PARENT_DEV(var, strname, tparent, pdata)	\
    662static struct platform_device var = {			\
    663	.name		= strname,			\
    664	.id		= -1,				\
    665	.dev		= {				\
    666		.platform_data = pdata,			\
    667		.parent	= tparent,			\
    668	},						\
    669};
    670#define MIO_SIMPLE_DEV(var, strname, pdata)	\
    671	MIO_PARENT_DEV(var, strname, NULL, pdata)
    672
    673MIO_SIMPLE_DEV(mioa701_gpio_keys, "gpio-keys",	    &mioa701_gpio_keys_data)
    674MIO_PARENT_DEV(mioa701_backlight, "pwm-backlight",  &pxa27x_device_pwm0.dev,
    675		&mioa701_backlight_data);
    676MIO_SIMPLE_DEV(mioa701_led,	  "leds-gpio",	    &gpio_led_info)
    677MIO_SIMPLE_DEV(pxa2xx_pcm,	  "pxa2xx-pcm",	    NULL)
    678MIO_SIMPLE_DEV(mioa701_sound,	  "mioa701-wm9713", NULL)
    679MIO_SIMPLE_DEV(mioa701_board,	  "mioa701-board",  NULL)
    680MIO_SIMPLE_DEV(gpio_vbus,	  "gpio-vbus",      NULL);
    681
    682static struct platform_device *devices[] __initdata = {
    683	&mioa701_gpio_keys,
    684	&mioa701_backlight,
    685	&mioa701_led,
    686	&pxa2xx_pcm,
    687	&mioa701_sound,
    688	&power_dev,
    689	&docg3,
    690	&gpio_vbus,
    691	&mioa701_board,
    692};
    693
    694static void mioa701_machine_exit(void);
    695
    696static void mioa701_poweroff(void)
    697{
    698	mioa701_machine_exit();
    699	pxa_restart(REBOOT_SOFT, NULL);
    700}
    701
    702static void mioa701_restart(enum reboot_mode c, const char *cmd)
    703{
    704	mioa701_machine_exit();
    705	pxa_restart(REBOOT_SOFT, cmd);
    706}
    707
    708static struct gpio global_gpios[] = {
    709	{ GPIO9_CHARGE_EN, GPIOF_OUT_INIT_HIGH, "Charger enable" },
    710	{ GPIO18_POWEROFF, GPIOF_OUT_INIT_LOW, "Power Off" },
    711	{ GPIO87_LCD_POWER, GPIOF_OUT_INIT_LOW, "LCD Power" },
    712	{ GPIO56_MT9M111_nOE, GPIOF_OUT_INIT_LOW, "Camera nOE" },
    713};
    714
    715static struct regulator_consumer_supply fixed_5v0_consumers[] = {
    716	REGULATOR_SUPPLY("power", "pwm-backlight"),
    717};
    718
    719static void __init mioa701_machine_init(void)
    720{
    721	int rc;
    722
    723	PSLR  = 0xff100000; /* SYSDEL=125ms, PWRDEL=125ms, PSLR_SL_ROD=1 */
    724	PCFR = PCFR_DC_EN | PCFR_GPR_EN | PCFR_OPDE;
    725	RTTR = 32768 - 1; /* Reset crazy WinCE value */
    726	UP2OCR = UP2OCR_HXOE;
    727
    728	/*
    729	 * Set up the flash memory : DiskOnChip G3 on first static memory bank
    730	 */
    731	__raw_writel(0x7ff02dd8, MSC0);
    732	__raw_writel(0x0001c391, MCMEM0);
    733	__raw_writel(0x0001c391, MCATT0);
    734	__raw_writel(0x0001c391, MCIO0);
    735
    736
    737	pxa2xx_mfp_config(ARRAY_AND_SIZE(mioa701_pin_config));
    738	pxa_set_ffuart_info(NULL);
    739	pxa_set_btuart_info(NULL);
    740	pxa_set_stuart_info(NULL);
    741	rc = gpio_request_array(ARRAY_AND_SIZE(global_gpios));
    742	if (rc)
    743		pr_err("MioA701: Failed to request GPIOs: %d", rc);
    744	bootstrap_init();
    745	pxa_set_fb_info(NULL, &mioa701_pxafb_info);
    746	gpiod_add_lookup_table(&mioa701_mci_gpio_table);
    747	pxa_set_mci_info(&mioa701_mci_info);
    748	pxa_set_keypad_info(&mioa701_keypad_info);
    749	pxa_set_udc_info(&mioa701_udc_info);
    750	pxa_set_ac97_info(&mioa701_ac97_info);
    751	pm_power_off = mioa701_poweroff;
    752	pwm_add_table(mioa701_pwm_lookup, ARRAY_SIZE(mioa701_pwm_lookup));
    753	gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
    754	platform_add_devices(devices, ARRAY_SIZE(devices));
    755	gsm_init();
    756
    757	i2c_register_board_info(0, ARRAY_AND_SIZE(mioa701_i2c_devices));
    758	i2c_register_board_info(1, ARRAY_AND_SIZE(mioa701_pi2c_devices));
    759	pxa_set_i2c_info(&i2c_pdata);
    760	pxa27x_set_i2c_power_info(NULL);
    761	pxa_set_camera_info(&mioa701_pxacamera_platform_data);
    762
    763	regulator_register_always_on(0, "fixed-5.0V", fixed_5v0_consumers,
    764				     ARRAY_SIZE(fixed_5v0_consumers),
    765				     5000000);
    766	regulator_has_full_constraints();
    767}
    768
    769static void mioa701_machine_exit(void)
    770{
    771	bootstrap_exit();
    772	gsm_exit();
    773}
    774
    775MACHINE_START(MIOA701, "MIO A701")
    776	.atag_offset	= 0x100,
    777	.map_io		= &pxa27x_map_io,
    778	.nr_irqs	= PXA_NR_IRQS,
    779	.init_irq	= &pxa27x_init_irq,
    780	.handle_irq	= &pxa27x_handle_irq,
    781	.init_machine	= mioa701_machine_init,
    782	.init_time	= pxa_timer_init,
    783	.restart	= mioa701_restart,
    784MACHINE_END