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741e3a89de
linux/arch/arm/mach-omap1/board-palmz71.c
Tony Lindgren 741e3a89de omap: Use separate init_irq functions to avoid cpu_is_omap tests early 
This allows us to remove cpu_is_omap calls from init_irq functions.
There should not be any need for cpu_is_omap calls as at this point.
During the timer init we only care about SoC generation, and not about
subrevisions.

The main reason for the patch is that we want to initialize only
minimal omap specific code from the init_early call.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-06-16 05:42:09 -07:00

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8.1 KiB
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/*
* linux/arch/arm/mach-omap1/board-palmz71.c
*
* Modified from board-generic.c
*
* Support for the Palm Zire71 PDA.
*
* Original version : Laurent Gonzalez
*
* Modified for zire71 : Marek Vasut
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/notifier.h>
#include <linux/clk.h>
#include <linux/irq.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/gpio.h>
#include <plat/flash.h>
#include <plat/mux.h>
#include <plat/usb.h>
#include <plat/dma.h>
#include <plat/tc.h>
#include <plat/board.h>
#include <plat/irda.h>
#include <plat/keypad.h>
#include <plat/common.h>
#include <plat/omap-alsa.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#define PALMZ71_USBDETECT_GPIO 0
#define PALMZ71_PENIRQ_GPIO 6
#define PALMZ71_MMC_WP_GPIO 8
#define PALMZ71_HDQ_GPIO 11
#define PALMZ71_HOTSYNC_GPIO OMAP_MPUIO(1)
#define PALMZ71_CABLE_GPIO OMAP_MPUIO(2)
#define PALMZ71_SLIDER_GPIO OMAP_MPUIO(3)
#define PALMZ71_MMC_IN_GPIO OMAP_MPUIO(4)
static void __init
omap_palmz71_init_irq(void)
{
omap1_init_common_hw();
omap1_init_irq();
}
static const unsigned int palmz71_keymap[] = {
KEY(0, 0, KEY_F1),
KEY(1, 0, KEY_F2),
KEY(2, 0, KEY_F3),
KEY(3, 0, KEY_F4),
KEY(4, 0, KEY_POWER),
KEY(0, 1, KEY_LEFT),
KEY(1, 1, KEY_DOWN),
KEY(2, 1, KEY_UP),
KEY(3, 1, KEY_RIGHT),
KEY(4, 1, KEY_ENTER),
KEY(0, 2, KEY_CAMERA),
};
static const struct matrix_keymap_data palmz71_keymap_data = {
.keymap = palmz71_keymap,
.keymap_size = ARRAY_SIZE(palmz71_keymap),
};
static struct omap_kp_platform_data palmz71_kp_data = {
.rows = 8,
.cols = 8,
.keymap_data = &palmz71_keymap_data,
.rep = true,
.delay = 80,
};
static struct resource palmz71_kp_resources[] = {
[0] = {
.start = INT_KEYBOARD,
.end = INT_KEYBOARD,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device palmz71_kp_device = {
.name = "omap-keypad",
.id = -1,
.dev = {
.platform_data = &palmz71_kp_data,
},
.num_resources = ARRAY_SIZE(palmz71_kp_resources),
.resource = palmz71_kp_resources,
};
static struct mtd_partition palmz71_rom_partitions[] = {
/* PalmOS "Small ROM", contains the bootloader and the debugger */
{
.name = "smallrom",
.offset = 0,
.size = 0xa000,
.mask_flags = MTD_WRITEABLE,
},
/* PalmOS "Big ROM", a filesystem with all the OS code and data */
{
.name = "bigrom",
.offset = SZ_128K,
/*
* 0x5f0000 bytes big in the multi-language ("EFIGS") version,
* 0x7b0000 bytes in the English-only ("enUS") version.
*/
.size = 0x7b0000,
.mask_flags = MTD_WRITEABLE,
},
};
static struct physmap_flash_data palmz71_rom_data = {
.width = 2,
.set_vpp = omap1_set_vpp,
.parts = palmz71_rom_partitions,
.nr_parts = ARRAY_SIZE(palmz71_rom_partitions),
};
static struct resource palmz71_rom_resource = {
.start = OMAP_CS0_PHYS,
.end = OMAP_CS0_PHYS + SZ_8M - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device palmz71_rom_device = {
.name = "physmap-flash",
.id = -1,
.dev = {
.platform_data = &palmz71_rom_data,
},
.num_resources = 1,
.resource = &palmz71_rom_resource,
};
static struct platform_device palmz71_lcd_device = {
.name = "lcd_palmz71",
.id = -1,
};
static struct omap_irda_config palmz71_irda_config = {
.transceiver_cap = IR_SIRMODE,
.rx_channel = OMAP_DMA_UART3_RX,
.tx_channel = OMAP_DMA_UART3_TX,
.dest_start = UART3_THR,
.src_start = UART3_RHR,
.tx_trigger = 0,
.rx_trigger = 0,
};
static struct resource palmz71_irda_resources[] = {
[0] = {
.start = INT_UART3,
.end = INT_UART3,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device palmz71_irda_device = {
.name = "omapirda",
.id = -1,
.dev = {
.platform_data = &palmz71_irda_config,
},
.num_resources = ARRAY_SIZE(palmz71_irda_resources),
.resource = palmz71_irda_resources,
};
static struct platform_device palmz71_spi_device = {
.name = "spi_palmz71",
.id = -1,
};
static struct omap_backlight_config palmz71_backlight_config = {
.default_intensity = 0xa0,
};
static struct platform_device palmz71_backlight_device = {
.name = "omap-bl",
.id = -1,
.dev = {
.platform_data = &palmz71_backlight_config,
},
};
static struct platform_device *devices[] __initdata = {
&palmz71_rom_device,
&palmz71_kp_device,
&palmz71_lcd_device,
&palmz71_irda_device,
&palmz71_spi_device,
&palmz71_backlight_device,
};
static int
palmz71_get_pendown_state(void)
{
return !gpio_get_value(PALMZ71_PENIRQ_GPIO);
}
static const struct ads7846_platform_data palmz71_ts_info = {
.model = 7846,
.vref_delay_usecs = 100, /* internal, no capacitor */
.x_plate_ohms = 419,
.y_plate_ohms = 486,
.get_pendown_state = palmz71_get_pendown_state,
};
static struct spi_board_info __initdata palmz71_boardinfo[] = { {
/* MicroWire (bus 2) CS0 has an ads7846e */
.modalias = "ads7846",
.platform_data = &palmz71_ts_info,
.irq = OMAP_GPIO_IRQ(PALMZ71_PENIRQ_GPIO),
.max_speed_hz = 120000 /* max sample rate at 3V */
* 26 /* command + data + overhead */,
.bus_num = 2,
.chip_select = 0,
} };
static struct omap_usb_config palmz71_usb_config __initdata = {
.register_dev = 1, /* Mini-B only receptacle */
.hmc_mode = 0,
.pins[0] = 2,
};
static struct omap_lcd_config palmz71_lcd_config __initdata = {
.ctrl_name = "internal",
};
static struct omap_board_config_kernel palmz71_config[] __initdata = {
{OMAP_TAG_LCD, &palmz71_lcd_config},
};
static irqreturn_t
palmz71_powercable(int irq, void *dev_id)
{
if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) {
printk(KERN_INFO "PM: Power cable connected\n");
irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
IRQ_TYPE_EDGE_FALLING);
} else {
printk(KERN_INFO "PM: Power cable disconnected\n");
irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
IRQ_TYPE_EDGE_RISING);
}
return IRQ_HANDLED;
}
static void __init
omap_mpu_wdt_mode(int mode)
{
if (mode)
omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
else {
omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
}
}
static void __init
palmz71_gpio_setup(int early)
{
if (early) {
/* Only set GPIO1 so we have a working serial */
gpio_direction_output(1, 1);
} else {
/* Set MMC/SD host WP pin as input */
if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) {
printk(KERN_ERR "Could not reserve WP GPIO!\n");
return;
}
gpio_direction_input(PALMZ71_MMC_WP_GPIO);
/* Monitor the Power-cable-connected signal */
if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) {
printk(KERN_ERR
"Could not reserve cable signal GPIO!\n");
return;
}
gpio_direction_input(PALMZ71_USBDETECT_GPIO);
if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
palmz71_powercable, IRQF_SAMPLE_RANDOM,
"palmz71-cable", 0))
printk(KERN_ERR
"IRQ request for power cable failed!\n");
palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), 0);
}
}
static void __init
omap_palmz71_init(void)
{
/* mux pins for uarts */
omap_cfg_reg(UART1_TX);
omap_cfg_reg(UART1_RTS);
omap_cfg_reg(UART2_TX);
omap_cfg_reg(UART2_RTS);
omap_cfg_reg(UART3_TX);
omap_cfg_reg(UART3_RX);
palmz71_gpio_setup(1);
omap_mpu_wdt_mode(0);
omap_board_config = palmz71_config;
omap_board_config_size = ARRAY_SIZE(palmz71_config);
platform_add_devices(devices, ARRAY_SIZE(devices));
spi_register_board_info(palmz71_boardinfo,
ARRAY_SIZE(palmz71_boardinfo));
omap1_usb_init(&palmz71_usb_config);
omap_serial_init();
omap_register_i2c_bus(1, 100, NULL, 0);
palmz71_gpio_setup(0);
}
static void __init
omap_palmz71_map_io(void)
{
omap1_map_common_io();
}
MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
.boot_params = 0x10000100,
.map_io = omap_palmz71_map_io,
.reserve = omap_reserve,
.init_irq = omap_palmz71_init_irq,
.init_machine = omap_palmz71_init,
.timer = &omap_timer,
MACHINE_END
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