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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board-osk.c (17977B)


      1/*
      2 * linux/arch/arm/mach-omap1/board-osk.c
      3 *
      4 * Board specific init for OMAP5912 OSK
      5 *
      6 * Written by Dirk Behme <dirk.behme@de.bosch.com>
      7 *
      8 * This program is free software; you can redistribute it and/or modify it
      9 * under the terms of the GNU General Public License as published by the
     10 * Free Software Foundation; either version 2 of the License, or (at your
     11 * option) any later version.
     12 *
     13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
     14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
     16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
     19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23 *
     24 * You should have received a copy of the  GNU General Public License along
     25 * with this program; if not, write  to the Free Software Foundation, Inc.,
     26 * 675 Mass Ave, Cambridge, MA 02139, USA.
     27 */
     28#include <linux/gpio.h>
     29#include <linux/gpio/machine.h>
     30#include <linux/kernel.h>
     31#include <linux/init.h>
     32#include <linux/platform_device.h>
     33#include <linux/interrupt.h>
     34#include <linux/irq.h>
     35#include <linux/i2c.h>
     36#include <linux/leds.h>
     37#include <linux/smc91x.h>
     38#include <linux/omapfb.h>
     39#include <linux/mtd/mtd.h>
     40#include <linux/mtd/partitions.h>
     41#include <linux/mtd/physmap.h>
     42#include <linux/mfd/tps65010.h>
     43#include <linux/platform_data/gpio-omap.h>
     44#include <linux/platform_data/omap1_bl.h>
     45#include <linux/soc/ti/omap1-io.h>
     46
     47#include <asm/mach-types.h>
     48#include <asm/mach/arch.h>
     49#include <asm/mach/map.h>
     50
     51#include "tc.h"
     52#include "flash.h"
     53#include "mux.h"
     54#include "hardware.h"
     55#include "usb.h"
     56#include "common.h"
     57
     58/* Name of the GPIO chip used by the OMAP for GPIOs 0..15 */
     59#define OMAP_GPIO_LABEL		"gpio-0-15"
     60
     61/* At OMAP5912 OSK the Ethernet is directly connected to CS1 */
     62#define OMAP_OSK_ETHR_START		0x04800300
     63
     64/* TPS65010 has four GPIOs.  nPG and LED2 can be treated like GPIOs with
     65 * alternate pin configurations for hardware-controlled blinking.
     66 */
     67#define OSK_TPS_GPIO_BASE		(OMAP_MAX_GPIO_LINES + 16 /* MPUIO */)
     68#	define OSK_TPS_GPIO_USB_PWR_EN	(OSK_TPS_GPIO_BASE + 0)
     69#	define OSK_TPS_GPIO_LED_D3	(OSK_TPS_GPIO_BASE + 1)
     70#	define OSK_TPS_GPIO_LAN_RESET	(OSK_TPS_GPIO_BASE + 2)
     71#	define OSK_TPS_GPIO_DSP_PWR_EN	(OSK_TPS_GPIO_BASE + 3)
     72#	define OSK_TPS_GPIO_LED_D9	(OSK_TPS_GPIO_BASE + 4)
     73#	define OSK_TPS_GPIO_LED_D2	(OSK_TPS_GPIO_BASE + 5)
     74
     75static struct mtd_partition osk_partitions[] = {
     76	/* bootloader (U-Boot, etc) in first sector */
     77	{
     78	      .name		= "bootloader",
     79	      .offset		= 0,
     80	      .size		= SZ_128K,
     81	      .mask_flags	= MTD_WRITEABLE, /* force read-only */
     82	},
     83	/* bootloader params in the next sector */
     84	{
     85	      .name		= "params",
     86	      .offset		= MTDPART_OFS_APPEND,
     87	      .size		= SZ_128K,
     88	      .mask_flags	= 0,
     89	}, {
     90	      .name		= "kernel",
     91	      .offset		= MTDPART_OFS_APPEND,
     92	      .size		= SZ_2M,
     93	      .mask_flags	= 0
     94	}, {
     95	      .name		= "filesystem",
     96	      .offset		= MTDPART_OFS_APPEND,
     97	      .size		= MTDPART_SIZ_FULL,
     98	      .mask_flags	= 0
     99	}
    100};
    101
    102static struct physmap_flash_data osk_flash_data = {
    103	.width		= 2,
    104	.set_vpp	= omap1_set_vpp,
    105	.parts		= osk_partitions,
    106	.nr_parts	= ARRAY_SIZE(osk_partitions),
    107};
    108
    109static struct resource osk_flash_resource = {
    110	/* this is on CS3, wherever it's mapped */
    111	.flags		= IORESOURCE_MEM,
    112};
    113
    114static struct platform_device osk5912_flash_device = {
    115	.name		= "physmap-flash",
    116	.id		= 0,
    117	.dev		= {
    118		.platform_data	= &osk_flash_data,
    119	},
    120	.num_resources	= 1,
    121	.resource	= &osk_flash_resource,
    122};
    123
    124static struct smc91x_platdata osk5912_smc91x_info = {
    125	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT,
    126	.leda	= RPC_LED_100_10,
    127	.ledb	= RPC_LED_TX_RX,
    128};
    129
    130static struct resource osk5912_smc91x_resources[] = {
    131	[0] = {
    132		.start	= OMAP_OSK_ETHR_START,		/* Physical */
    133		.end	= OMAP_OSK_ETHR_START + 0xf,
    134		.flags	= IORESOURCE_MEM,
    135	},
    136	[1] = {
    137		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
    138	},
    139};
    140
    141static struct platform_device osk5912_smc91x_device = {
    142	.name		= "smc91x",
    143	.id		= -1,
    144	.dev	= {
    145		.platform_data	= &osk5912_smc91x_info,
    146	},
    147	.num_resources	= ARRAY_SIZE(osk5912_smc91x_resources),
    148	.resource	= osk5912_smc91x_resources,
    149};
    150
    151static struct resource osk5912_cf_resources[] = {
    152	[0] = {
    153		.flags	= IORESOURCE_IRQ,
    154	},
    155	[1] = {
    156		.flags = IORESOURCE_MEM,
    157	},
    158};
    159
    160static struct platform_device osk5912_cf_device = {
    161	.name		= "omap_cf",
    162	.id		= -1,
    163	.num_resources	= ARRAY_SIZE(osk5912_cf_resources),
    164	.resource	= osk5912_cf_resources,
    165};
    166
    167static struct platform_device *osk5912_devices[] __initdata = {
    168	&osk5912_flash_device,
    169	&osk5912_smc91x_device,
    170	&osk5912_cf_device,
    171};
    172
    173static const struct gpio_led tps_leds[] = {
    174	/* NOTE:  D9 and D2 have hardware blink support.
    175	 * Also, D9 requires non-battery power.
    176	 */
    177	{ .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9",
    178			.default_trigger = "disk-activity", },
    179	{ .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", },
    180	{ .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1,
    181			.default_trigger = "heartbeat", },
    182};
    183
    184static struct gpio_led_platform_data tps_leds_data = {
    185	.num_leds	= 3,
    186	.leds		= tps_leds,
    187};
    188
    189static struct platform_device osk5912_tps_leds = {
    190	.name			= "leds-gpio",
    191	.id			= 0,
    192	.dev.platform_data	= &tps_leds_data,
    193};
    194
    195static int osk_tps_setup(struct i2c_client *client, void *context)
    196{
    197	if (!IS_BUILTIN(CONFIG_TPS65010))
    198		return -ENOSYS;
    199
    200	/* Set GPIO 1 HIGH to disable VBUS power supply;
    201	 * OHCI driver powers it up/down as needed.
    202	 */
    203	gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en");
    204	gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1);
    205	/* Free the GPIO again as the driver will request it */
    206	gpio_free(OSK_TPS_GPIO_USB_PWR_EN);
    207
    208	/* Set GPIO 2 high so LED D3 is off by default */
    209	tps65010_set_gpio_out_value(GPIO2, HIGH);
    210
    211	/* Set GPIO 3 low to take ethernet out of reset */
    212	gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset");
    213	gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0);
    214
    215	/* GPIO4 is VDD_DSP */
    216	gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power");
    217	gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1);
    218	/* REVISIT if DSP support isn't configured, power it off ... */
    219
    220	/* Let LED1 (D9) blink; leds-gpio may override it */
    221	tps65010_set_led(LED1, BLINK);
    222
    223	/* Set LED2 off by default */
    224	tps65010_set_led(LED2, OFF);
    225
    226	/* Enable LOW_PWR handshake */
    227	tps65010_set_low_pwr(ON);
    228
    229	/* Switch VLDO2 to 3.0V for AIC23 */
    230	tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
    231			| TPS_LDO1_ENABLE);
    232
    233	/* register these three LEDs */
    234	osk5912_tps_leds.dev.parent = &client->dev;
    235	platform_device_register(&osk5912_tps_leds);
    236
    237	return 0;
    238}
    239
    240static struct tps65010_board tps_board = {
    241	.base		= OSK_TPS_GPIO_BASE,
    242	.outmask	= 0x0f,
    243	.setup		= osk_tps_setup,
    244};
    245
    246static struct i2c_board_info __initdata osk_i2c_board_info[] = {
    247	{
    248		/* This device will get the name "i2c-tps65010" */
    249		I2C_BOARD_INFO("tps65010", 0x48),
    250		.dev_name = "tps65010",
    251		.platform_data	= &tps_board,
    252
    253	},
    254	{
    255		I2C_BOARD_INFO("tlv320aic23", 0x1B),
    256	},
    257	/* TODO when driver support is ready:
    258	 *  - optionally on Mistral, ov9640 camera sensor at 0x30
    259	 */
    260};
    261
    262static void __init osk_init_smc91x(void)
    263{
    264	u32 l;
    265
    266	if ((gpio_request(0, "smc_irq")) < 0) {
    267		printk("Error requesting gpio 0 for smc91x irq\n");
    268		return;
    269	}
    270
    271	/* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
    272	l = omap_readl(EMIFS_CCS(1));
    273	l |= 0x3;
    274	omap_writel(l, EMIFS_CCS(1));
    275}
    276
    277static void __init osk_init_cf(int seg)
    278{
    279	struct resource *res = &osk5912_cf_resources[1];
    280
    281	omap_cfg_reg(M7_1610_GPIO62);
    282	if ((gpio_request(62, "cf_irq")) < 0) {
    283		printk("Error requesting gpio 62 for CF irq\n");
    284		return;
    285	}
    286
    287	switch (seg) {
    288	/* NOTE: CS0 could be configured too ... */
    289	case 1:
    290		res->start = OMAP_CS1_PHYS;
    291		break;
    292	case 2:
    293		res->start = OMAP_CS2_PHYS;
    294		break;
    295	case 3:
    296		res->start = omap_cs3_phys();
    297		break;
    298	}
    299
    300	res->end = res->start + SZ_8K - 1;
    301	osk5912_cf_device.dev.platform_data = (void *)(uintptr_t)seg;
    302
    303	/* NOTE:  better EMIFS setup might support more cards; but the
    304	 * TRM only shows how to affect regular flash signals, not their
    305	 * CF/PCMCIA variants...
    306	 */
    307	pr_debug("%s: cs%d, previous ccs %08x acs %08x\n", __func__,
    308		seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg)));
    309	omap_writel(0x0004a1b3, EMIFS_CCS(seg));	/* synch mode 4 etc */
    310	omap_writel(0x00000000, EMIFS_ACS(seg));	/* OE hold/setup */
    311
    312	/* the CF I/O IRQ is really active-low */
    313	irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING);
    314}
    315
    316static struct gpiod_lookup_table osk_usb_gpio_table = {
    317	.dev_id = "ohci",
    318	.table = {
    319		/* Power GPIO on the I2C-attached TPS65010 */
    320		GPIO_LOOKUP("tps65010", 0, "power", GPIO_ACTIVE_HIGH),
    321		GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent",
    322			    GPIO_ACTIVE_HIGH),
    323	},
    324};
    325
    326static struct omap_usb_config osk_usb_config __initdata = {
    327	/* has usb host connector (A) ... for development it can also
    328	 * be used, with a NONSTANDARD gender-bending cable/dongle, as
    329	 * a peripheral.
    330	 */
    331#if IS_ENABLED(CONFIG_USB_OMAP)
    332	.register_dev	= 1,
    333	.hmc_mode	= 0,
    334#else
    335	.register_host	= 1,
    336	.hmc_mode	= 16,
    337	.rwc		= 1,
    338#endif
    339	.pins[0]	= 2,
    340};
    341
    342#ifdef	CONFIG_OMAP_OSK_MISTRAL
    343static const struct omap_lcd_config osk_lcd_config __initconst = {
    344	.ctrl_name	= "internal",
    345};
    346#endif
    347
    348#ifdef	CONFIG_OMAP_OSK_MISTRAL
    349
    350#include <linux/input.h>
    351#include <linux/property.h>
    352#include <linux/spi/spi.h>
    353#include <linux/spi/ads7846.h>
    354
    355#include <linux/platform_data/keypad-omap.h>
    356
    357static const struct property_entry mistral_at24_properties[] = {
    358	PROPERTY_ENTRY_U32("pagesize", 16),
    359	{ }
    360};
    361
    362static const struct software_node mistral_at24_node = {
    363	.properties = mistral_at24_properties,
    364};
    365
    366static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
    367	{
    368		/* NOTE:  powered from LCD supply */
    369		I2C_BOARD_INFO("24c04", 0x50),
    370		.swnode = &mistral_at24_node,
    371	},
    372	/* TODO when driver support is ready:
    373	 *  - optionally ov9640 camera sensor at 0x30
    374	 */
    375};
    376
    377static const unsigned int osk_keymap[] = {
    378	/* KEY(col, row, code) */
    379	KEY(0, 0, KEY_F1),		/* SW4 */
    380	KEY(3, 0, KEY_UP),		/* (sw2/up) */
    381	KEY(1, 1, KEY_LEFTCTRL),	/* SW5 */
    382	KEY(2, 1, KEY_LEFT),		/* (sw2/left) */
    383	KEY(0, 2, KEY_SPACE),		/* SW3 */
    384	KEY(1, 2, KEY_ESC),		/* SW6 */
    385	KEY(2, 2, KEY_DOWN),		/* (sw2/down) */
    386	KEY(2, 3, KEY_ENTER),		/* (sw2/select) */
    387	KEY(3, 3, KEY_RIGHT),		/* (sw2/right) */
    388};
    389
    390static const struct matrix_keymap_data osk_keymap_data = {
    391	.keymap		= osk_keymap,
    392	.keymap_size	= ARRAY_SIZE(osk_keymap),
    393};
    394
    395static struct omap_kp_platform_data osk_kp_data = {
    396	.rows		= 8,
    397	.cols		= 8,
    398	.keymap_data	= &osk_keymap_data,
    399	.delay		= 9,
    400};
    401
    402static struct resource osk5912_kp_resources[] = {
    403	[0] = {
    404		.start	= INT_KEYBOARD,
    405		.end	= INT_KEYBOARD,
    406		.flags	= IORESOURCE_IRQ,
    407	},
    408};
    409
    410static struct platform_device osk5912_kp_device = {
    411	.name		= "omap-keypad",
    412	.id		= -1,
    413	.dev		= {
    414		.platform_data = &osk_kp_data,
    415	},
    416	.num_resources	= ARRAY_SIZE(osk5912_kp_resources),
    417	.resource	= osk5912_kp_resources,
    418};
    419
    420static struct omap_backlight_config mistral_bl_data = {
    421	.default_intensity	= 0xa0,
    422};
    423
    424static struct platform_device mistral_bl_device = {
    425	.name		= "omap-bl",
    426	.id		= -1,
    427	.dev		= {
    428		.platform_data = &mistral_bl_data,
    429	},
    430};
    431
    432static struct platform_device osk5912_lcd_device = {
    433	.name		= "lcd_osk",
    434	.id		= -1,
    435};
    436
    437static const struct gpio_led mistral_gpio_led_pins[] = {
    438	{
    439		.name		= "mistral:red",
    440		.default_trigger = "heartbeat",
    441		.gpio		= 3,
    442	},
    443	{
    444		.name		= "mistral:green",
    445		.default_trigger = "cpu0",
    446		.gpio		= OMAP_MPUIO(4),
    447	},
    448};
    449
    450static struct gpio_led_platform_data mistral_gpio_led_data = {
    451	.leds		= mistral_gpio_led_pins,
    452	.num_leds	= ARRAY_SIZE(mistral_gpio_led_pins),
    453};
    454
    455static struct platform_device mistral_gpio_leds = {
    456	.name	= "leds-gpio",
    457	.id	= -1,
    458	.dev	= {
    459		.platform_data = &mistral_gpio_led_data,
    460	},
    461};
    462
    463static struct platform_device *mistral_devices[] __initdata = {
    464	&osk5912_kp_device,
    465	&mistral_bl_device,
    466	&osk5912_lcd_device,
    467	&mistral_gpio_leds,
    468};
    469
    470static int mistral_get_pendown_state(void)
    471{
    472	return !gpio_get_value(4);
    473}
    474
    475static const struct ads7846_platform_data mistral_ts_info = {
    476	.model			= 7846,
    477	.vref_delay_usecs	= 100,	/* internal, no capacitor */
    478	.x_plate_ohms		= 419,
    479	.y_plate_ohms		= 486,
    480	.get_pendown_state	= mistral_get_pendown_state,
    481};
    482
    483static struct spi_board_info __initdata mistral_boardinfo[] = { {
    484	/* MicroWire (bus 2) CS0 has an ads7846e */
    485	.modalias		= "ads7846",
    486	.platform_data		= &mistral_ts_info,
    487	.max_speed_hz		= 120000 /* max sample rate at 3V */
    488					* 26 /* command + data + overhead */,
    489	.bus_num		= 2,
    490	.chip_select		= 0,
    491} };
    492
    493static irqreturn_t
    494osk_mistral_wake_interrupt(int irq, void *ignored)
    495{
    496	return IRQ_HANDLED;
    497}
    498
    499static void __init osk_mistral_init(void)
    500{
    501	/* NOTE:  we could actually tell if there's a Mistral board
    502	 * attached, e.g. by trying to read something from the ads7846.
    503	 * But this arch_init() code is too early for that, since we
    504	 * can't talk to the ads or even the i2c eeprom.
    505	 */
    506
    507	/* parallel camera interface */
    508	omap_cfg_reg(J15_1610_CAM_LCLK);
    509	omap_cfg_reg(J18_1610_CAM_D7);
    510	omap_cfg_reg(J19_1610_CAM_D6);
    511	omap_cfg_reg(J14_1610_CAM_D5);
    512	omap_cfg_reg(K18_1610_CAM_D4);
    513	omap_cfg_reg(K19_1610_CAM_D3);
    514	omap_cfg_reg(K15_1610_CAM_D2);
    515	omap_cfg_reg(K14_1610_CAM_D1);
    516	omap_cfg_reg(L19_1610_CAM_D0);
    517	omap_cfg_reg(L18_1610_CAM_VS);
    518	omap_cfg_reg(L15_1610_CAM_HS);
    519	omap_cfg_reg(M19_1610_CAM_RSTZ);
    520	omap_cfg_reg(Y15_1610_CAM_OUTCLK);
    521
    522	/* serial camera interface */
    523	omap_cfg_reg(H19_1610_CAM_EXCLK);
    524	omap_cfg_reg(W13_1610_CCP_CLKM);
    525	omap_cfg_reg(Y12_1610_CCP_CLKP);
    526	/* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
    527	/* omap_cfg_reg(Y14_1610_CCP_DATAM); */
    528	omap_cfg_reg(W14_1610_CCP_DATAP);
    529
    530	/* CAM_PWDN */
    531	if (gpio_request(11, "cam_pwdn") == 0) {
    532		omap_cfg_reg(N20_1610_GPIO11);
    533		gpio_direction_output(11, 0);
    534	} else
    535		pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
    536
    537
    538	/* omap_cfg_reg(P19_1610_GPIO6); */	/* BUSY */
    539	gpio_request(6, "ts_busy");
    540	gpio_direction_input(6);
    541
    542	omap_cfg_reg(P20_1610_GPIO4);	/* PENIRQ */
    543	gpio_request(4, "ts_int");
    544	gpio_direction_input(4);
    545	irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
    546
    547	mistral_boardinfo[0].irq = gpio_to_irq(4);
    548	spi_register_board_info(mistral_boardinfo,
    549			ARRAY_SIZE(mistral_boardinfo));
    550
    551	/* the sideways button (SW1) is for use as a "wakeup" button
    552	 *
    553	 * NOTE:  The Mistral board has the wakeup button (SW1) wired
    554	 * to the LCD 3.3V rail, which is powered down during suspend.
    555	 * To allow this button to wake up the omap, work around this
    556	 * HW bug by rewiring SW1 to use the main 3.3V rail.
    557	 */
    558	omap_cfg_reg(N15_1610_MPUIO2);
    559	if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
    560		int ret = 0;
    561		int irq = gpio_to_irq(OMAP_MPUIO(2));
    562
    563		gpio_direction_input(OMAP_MPUIO(2));
    564		irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
    565		/* share the IRQ in case someone wants to use the
    566		 * button for more than wakeup from system sleep.
    567		 */
    568		ret = request_irq(irq,
    569				&osk_mistral_wake_interrupt,
    570				IRQF_SHARED, "mistral_wakeup",
    571				&osk_mistral_wake_interrupt);
    572		if (ret != 0) {
    573			gpio_free(OMAP_MPUIO(2));
    574			printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
    575				ret);
    576		} else
    577			enable_irq_wake(irq);
    578	} else
    579		printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
    580
    581	/* LCD:  backlight, and power; power controls other devices on the
    582	 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
    583	 */
    584	omap_cfg_reg(PWL);
    585	if (gpio_request(2, "lcd_pwr") == 0)
    586		gpio_direction_output(2, 1);
    587
    588	/*
    589	 * GPIO based LEDs
    590	 */
    591	omap_cfg_reg(P18_1610_GPIO3);
    592	omap_cfg_reg(MPUIO4);
    593
    594	i2c_register_board_info(1, mistral_i2c_board_info,
    595			ARRAY_SIZE(mistral_i2c_board_info));
    596
    597	platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
    598}
    599#else
    600static void __init osk_mistral_init(void) { }
    601#endif
    602
    603#define EMIFS_CS3_VAL	(0x88013141)
    604
    605static void __init osk_init(void)
    606{
    607	u32 l;
    608
    609	osk_init_smc91x();
    610	osk_init_cf(2); /* CS2 */
    611
    612	/* Workaround for wrong CS3 (NOR flash) timing
    613	 * There are some U-Boot versions out there which configure
    614	 * wrong CS3 memory timings. This mainly leads to CRC
    615	 * or similar errors if you use NOR flash (e.g. with JFFS2)
    616	 */
    617	l = omap_readl(EMIFS_CCS(3));
    618	if (l != EMIFS_CS3_VAL)
    619		omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3));
    620
    621	osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
    622	osk_flash_resource.end += SZ_32M - 1;
    623	osk5912_smc91x_resources[1].start = gpio_to_irq(0);
    624	osk5912_smc91x_resources[1].end = gpio_to_irq(0);
    625	osk5912_cf_resources[0].start = gpio_to_irq(62);
    626	osk5912_cf_resources[0].end = gpio_to_irq(62);
    627	platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
    628
    629	l = omap_readl(USB_TRANSCEIVER_CTRL);
    630	l |= (3 << 1);
    631	omap_writel(l, USB_TRANSCEIVER_CTRL);
    632
    633	gpiod_add_lookup_table(&osk_usb_gpio_table);
    634	omap1_usb_init(&osk_usb_config);
    635
    636	/* irq for tps65010 chip */
    637	/* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
    638	if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
    639		gpio_direction_input(OMAP_MPUIO(1));
    640
    641	omap_serial_init();
    642	osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1));
    643	omap_register_i2c_bus(1, 400, osk_i2c_board_info,
    644			      ARRAY_SIZE(osk_i2c_board_info));
    645	osk_mistral_init();
    646
    647#ifdef	CONFIG_OMAP_OSK_MISTRAL
    648	omapfb_set_lcd_config(&osk_lcd_config);
    649#endif
    650
    651}
    652
    653MACHINE_START(OMAP_OSK, "TI-OSK")
    654	/* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
    655	.atag_offset	= 0x100,
    656	.map_io		= omap16xx_map_io,
    657	.init_early	= omap1_init_early,
    658	.init_irq	= omap1_init_irq,
    659	.handle_irq	= omap1_handle_irq,
    660	.init_machine	= osk_init,
    661	.init_late	= omap1_init_late,
    662	.init_time	= omap1_timer_init,
    663	.restart	= omap1_restart,
    664MACHINE_END