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acrn-kernel/arch/arm/mach-omap2/board-h4.c

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/*
* linux/arch/arm/mach-omap2/board-h4.c
*
* Copyright (C) 2005 Nokia Corporation
* Author: Paul Mundt <paul.mundt@nokia.com>
*
* Modified from mach-omap/omap1/board-generic.c
*
* 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/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <linux/input.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>
#include <asm/arch/gpio.h>
#include <asm/arch/gpioexpander.h>
#include <asm/arch/mux.h>
#include <asm/arch/usb.h>
#include <asm/arch/irda.h>
#include <asm/arch/board.h>
#include <asm/arch/common.h>
#include <asm/arch/keypad.h>
#include <asm/arch/menelaus.h>
#include <asm/arch/dma.h>
#include "prcm-regs.h"
#include <asm/io.h>
static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
static int h4_keymap[] = {
KEY(0, 0, KEY_LEFT),
KEY(0, 1, KEY_RIGHT),
KEY(0, 2, KEY_A),
KEY(0, 3, KEY_B),
KEY(0, 4, KEY_C),
KEY(1, 0, KEY_DOWN),
KEY(1, 1, KEY_UP),
KEY(1, 2, KEY_E),
KEY(1, 3, KEY_F),
KEY(1, 4, KEY_G),
KEY(2, 0, KEY_ENTER),
KEY(2, 1, KEY_I),
KEY(2, 2, KEY_J),
KEY(2, 3, KEY_K),
KEY(2, 4, KEY_3),
KEY(3, 0, KEY_M),
KEY(3, 1, KEY_N),
KEY(3, 2, KEY_O),
KEY(3, 3, KEY_P),
KEY(3, 4, KEY_Q),
KEY(4, 0, KEY_R),
KEY(4, 1, KEY_4),
KEY(4, 2, KEY_T),
KEY(4, 3, KEY_U),
KEY(4, 4, KEY_ENTER),
KEY(5, 0, KEY_V),
KEY(5, 1, KEY_W),
KEY(5, 2, KEY_L),
KEY(5, 3, KEY_S),
KEY(5, 4, KEY_ENTER),
0
};
static struct mtd_partition h4_partitions[] = {
/* bootloader (U-Boot, etc) in first sector */
{
.name = "bootloader",
.offset = 0,
.size = SZ_128K,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
/* bootloader params in the next sector */
{
.name = "params",
.offset = MTDPART_OFS_APPEND,
.size = SZ_128K,
.mask_flags = 0,
},
/* kernel */
{
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_2M,
.mask_flags = 0
},
/* file system */
{
.name = "filesystem",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0
}
};
static struct flash_platform_data h4_flash_data = {
.map_name = "cfi_probe",
.width = 2,
.parts = h4_partitions,
.nr_parts = ARRAY_SIZE(h4_partitions),
};
static struct resource h4_flash_resource = {
.start = H4_CS0_BASE,
.end = H4_CS0_BASE + SZ_64M - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device h4_flash_device = {
.name = "omapflash",
.id = 0,
.dev = {
.platform_data = &h4_flash_data,
},
.num_resources = 1,
.resource = &h4_flash_resource,
};
/* Select between the IrDA and aGPS module
*/
static int h4_select_irda(struct device *dev, int state)
{
unsigned char expa;
int err = 0;
if ((err = read_gpio_expa(&expa, 0x21))) {
printk(KERN_ERR "Error reading from I/O expander\n");
return err;
}
/* 'P6' enable/disable IRDA_TX and IRDA_RX */
if (state & IR_SEL) { /* IrDa */
if ((err = write_gpio_expa(expa | 0x01, 0x21))) {
printk(KERN_ERR "Error writing to I/O expander\n");
return err;
}
} else {
if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
printk(KERN_ERR "Error writing to I/O expander\n");
return err;
}
}
return err;
}
static void set_trans_mode(struct work_struct *work)
{
struct omap_irda_config *irda_config =
container_of(work, struct omap_irda_config, gpio_expa.work);
int mode = irda_config->mode;
unsigned char expa;
int err = 0;
if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
printk(KERN_ERR "Error reading from I/O expander\n");
}
expa &= ~0x01;
if (!(mode & IR_SIRMODE)) { /* MIR/FIR */
expa |= 0x01;
}
if ((err = write_gpio_expa(expa, 0x20)) != 0) {
printk(KERN_ERR "Error writing to I/O expander\n");
}
}
static int h4_transceiver_mode(struct device *dev, int mode)
{
struct omap_irda_config *irda_config = dev->platform_data;
irda_config->mode = mode;
cancel_delayed_work(&irda_config->gpio_expa);
PREPARE_DELAYED_WORK(&irda_config->gpio_expa, set_trans_mode);
schedule_delayed_work(&irda_config->gpio_expa, 0);
return 0;
}
static struct omap_irda_config h4_irda_data = {
.transceiver_cap = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
.transceiver_mode = h4_transceiver_mode,
.select_irda = h4_select_irda,
.rx_channel = OMAP24XX_DMA_UART3_RX,
.tx_channel = OMAP24XX_DMA_UART3_TX,
.dest_start = OMAP_UART3_BASE,
.src_start = OMAP_UART3_BASE,
.tx_trigger = OMAP24XX_DMA_UART3_TX,
.rx_trigger = OMAP24XX_DMA_UART3_RX,
};
static struct resource h4_irda_resources[] = {
[0] = {
.start = INT_24XX_UART3_IRQ,
.end = INT_24XX_UART3_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device h4_irda_device = {
.name = "omapirda",
.id = -1,
.dev = {
.platform_data = &h4_irda_data,
},
.num_resources = 1,
.resource = h4_irda_resources,
};
static struct omap_kp_platform_data h4_kp_data = {
.rows = 6,
.cols = 7,
.keymap = h4_keymap,
.keymapsize = ARRAY_SIZE(h4_keymap),
.rep = 1,
.row_gpios = row_gpios,
.col_gpios = col_gpios,
};
static struct platform_device h4_kp_device = {
.name = "omap-keypad",
.id = -1,
.dev = {
.platform_data = &h4_kp_data,
},
};
static struct platform_device h4_lcd_device = {
.name = "lcd_h4",
.id = -1,
};
static struct platform_device *h4_devices[] __initdata = {
&h4_flash_device,
&h4_irda_device,
&h4_kp_device,
&h4_lcd_device,
};
static inline void __init h4_init_debug(void)
{
/* Make sure CS1 timings are correct */
GPMC_CONFIG1_1 = 0x00011200;
GPMC_CONFIG2_1 = 0x001f1f01;
GPMC_CONFIG3_1 = 0x00080803;
GPMC_CONFIG4_1 = 0x1c091c09;
GPMC_CONFIG5_1 = 0x041f1f1f;
GPMC_CONFIG6_1 = 0x000004c4;
GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
udelay(100);
omap_cfg_reg(M15_24XX_GPIO92);
if (debug_card_init(cs_mem_base, OMAP24XX_ETHR_GPIO_IRQ) < 0)
gpmc_cs_free(eth_cs);
}
static void __init omap_h4_init_irq(void)
{
omap2_init_common_hw();
omap_init_irq();
omap_gpio_init();
}
static struct omap_uart_config h4_uart_config __initdata = {
.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
};
static struct omap_mmc_config h4_mmc_config __initdata = {
.mmc [0] = {
.enabled = 1,
.wire4 = 1,
.wp_pin = -1,
.power_pin = -1,
.switch_pin = -1,
},
};
static struct omap_lcd_config h4_lcd_config __initdata = {
.ctrl_name = "internal",
};
static struct omap_board_config_kernel h4_config[] = {
{ OMAP_TAG_UART, &h4_uart_config },
{ OMAP_TAG_MMC, &h4_mmc_config },
{ OMAP_TAG_LCD, &h4_lcd_config },
};
static void __init omap_h4_init(void)
{
/*
* Make sure the serial ports are muxed on at this point.
* You have to mux them off in device drivers later on
* if not needed.
*/
#if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
omap_cfg_reg(K15_24XX_UART3_TX);
omap_cfg_reg(K14_24XX_UART3_RX);
#endif
#if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
if (omap_has_menelaus()) {
row_gpios[5] = 0;
col_gpios[2] = 15;
col_gpios[6] = 18;
}
#endif
platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
omap_board_config = h4_config;
omap_board_config_size = ARRAY_SIZE(h4_config);
omap_serial_init();
}
static void __init omap_h4_map_io(void)
{
omap2_map_common_io();
}
MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
/* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
.phys_io = 0x48000000,
.io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
.boot_params = 0x80000100,
.map_io = omap_h4_map_io,
.init_irq = omap_h4_init_irq,
.init_machine = omap_h4_init,
.timer = &omap_timer,
MACHINE_END
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