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/*
* Copyright (C) 2009 Texas Instruments Inc.
* Mikkel Christensen <mlc@ti.com>
*
* 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/gpio.h>
#include <linux/serial_8250.h>
#include <linux/smsc911x.h>
#include <linux/interrupt.h>
#include <plat/gpmc.h>
#include <plat/gpmc-smsc911x.h>
#include <mach/board-zoom.h>
#define ZOOM_SMSC911X_CS 7
#define ZOOM_SMSC911X_GPIO 158
#define ZOOM_QUADUART_CS 3
#define ZOOM_QUADUART_GPIO 102
#define ZOOM_QUADUART_RST_GPIO 152
#define QUART_CLK 1843200
#define DEBUG_BASE 0x08000000
#define ZOOM_ETHR_START DEBUG_BASE
static struct omap_smsc911x_platform_data zoom_smsc911x_cfg = {
.cs = ZOOM_SMSC911X_CS,
.gpio_irq = ZOOM_SMSC911X_GPIO,
.gpio_reset = -EINVAL,
.flags = SMSC911X_USE_32BIT,
};
static inline void __init zoom_init_smsc911x(void)
{
gpmc_smsc911x_init(&zoom_smsc911x_cfg);
}
static struct plat_serial8250_port serial_platform_data[] = {
{
.mapbase = ZOOM_UART_BASE,
.irq = OMAP_GPIO_IRQ(102),
.flags = UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ,
.irqflags = IRQF_SHARED | IRQF_TRIGGER_RISING,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = QUART_CLK,
}, {
.flags = 0
}
};
static struct platform_device zoom_debugboard_serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = serial_platform_data,
},
};
static inline void __init zoom_init_quaduart(void)
{
int quart_cs;
unsigned long cs_mem_base;
int quart_gpio = 0;
if (gpio_request_one(ZOOM_QUADUART_RST_GPIO,
GPIOF_OUT_INIT_LOW,
"TL16CP754C GPIO") < 0) {
pr_err("Failed to request GPIO%d for TL16CP754C\n",
ZOOM_QUADUART_RST_GPIO);
return;
}
quart_cs = ZOOM_QUADUART_CS;
if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) {
printk(KERN_ERR "Failed to request GPMC mem"
"for Quad UART(TL16CP754C)\n");
return;
}
quart_gpio = ZOOM_QUADUART_GPIO;
if (gpio_request_one(quart_gpio, GPIOF_IN, "TL16CP754C GPIO") < 0)
printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n",
quart_gpio);
}
static inline int omap_zoom_debugboard_detect(void)
{
int debug_board_detect = 0;
int ret = 1;
debug_board_detect = ZOOM_SMSC911X_GPIO;
if (gpio_request_one(debug_board_detect, GPIOF_IN,
"Zoom debug board detect") < 0) {
printk(KERN_ERR "Failed to request GPIO%d for Zoom debug"
"board detect\n", debug_board_detect);
return 0;
}
if (!gpio_get_value(debug_board_detect)) {
ret = 0;
}
gpio_free(debug_board_detect);
return ret;
}
static struct platform_device *zoom_devices[] __initdata = {
&zoom_debugboard_serial_device,
};
int __init zoom_debugboard_init(void)
{
if (!omap_zoom_debugboard_detect())
return 0;
zoom_init_smsc911x();
zoom_init_quaduart();
return platform_add_devices(zoom_devices, ARRAY_SIZE(zoom_devices));
}
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