163 строки
3.8 KiB
C
163 строки
3.8 KiB
C
/*
|
|
* 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 <mach/gpmc.h>
|
|
|
|
#define ZOOM2_SMSC911X_CS 7
|
|
#define ZOOM2_SMSC911X_GPIO 158
|
|
#define ZOOM2_QUADUART_CS 3
|
|
#define ZOOM2_QUADUART_GPIO 102
|
|
#define QUART_CLK 1843200
|
|
#define DEBUG_BASE 0x08000000
|
|
#define ZOOM2_ETHR_START DEBUG_BASE
|
|
|
|
static struct resource zoom2_smsc911x_resources[] = {
|
|
[0] = {
|
|
.start = ZOOM2_ETHR_START,
|
|
.end = ZOOM2_ETHR_START + SZ_4K,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
|
|
},
|
|
};
|
|
|
|
static struct smsc911x_platform_config zoom2_smsc911x_config = {
|
|
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
|
|
.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
|
|
.flags = SMSC911X_USE_32BIT,
|
|
.phy_interface = PHY_INTERFACE_MODE_MII,
|
|
};
|
|
|
|
static struct platform_device zoom2_smsc911x_device = {
|
|
.name = "smsc911x",
|
|
.id = -1,
|
|
.num_resources = ARRAY_SIZE(zoom2_smsc911x_resources),
|
|
.resource = zoom2_smsc911x_resources,
|
|
.dev = {
|
|
.platform_data = &zoom2_smsc911x_config,
|
|
},
|
|
};
|
|
|
|
static inline void __init zoom2_init_smsc911x(void)
|
|
{
|
|
int eth_cs;
|
|
unsigned long cs_mem_base;
|
|
int eth_gpio = 0;
|
|
|
|
eth_cs = ZOOM2_SMSC911X_CS;
|
|
|
|
if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
|
|
printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
|
|
return;
|
|
}
|
|
|
|
zoom2_smsc911x_resources[0].start = cs_mem_base + 0x0;
|
|
zoom2_smsc911x_resources[0].end = cs_mem_base + 0xff;
|
|
|
|
eth_gpio = ZOOM2_SMSC911X_GPIO;
|
|
|
|
zoom2_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
|
|
|
|
if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
|
|
printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
|
|
eth_gpio);
|
|
return;
|
|
}
|
|
gpio_direction_input(eth_gpio);
|
|
}
|
|
|
|
static struct plat_serial8250_port serial_platform_data[] = {
|
|
{
|
|
.mapbase = 0x10000000,
|
|
.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 zoom2_debugboard_serial_device = {
|
|
.name = "serial8250",
|
|
.id = PLAT8250_DEV_PLATFORM1,
|
|
.dev = {
|
|
.platform_data = serial_platform_data,
|
|
},
|
|
};
|
|
|
|
static inline void __init zoom2_init_quaduart(void)
|
|
{
|
|
int quart_cs;
|
|
unsigned long cs_mem_base;
|
|
int quart_gpio = 0;
|
|
|
|
quart_cs = ZOOM2_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 = ZOOM2_QUADUART_GPIO;
|
|
|
|
if (gpio_request(quart_gpio, "TL16CP754C GPIO") < 0) {
|
|
printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n",
|
|
quart_gpio);
|
|
return;
|
|
}
|
|
gpio_direction_input(quart_gpio);
|
|
}
|
|
|
|
static inline int omap_zoom2_debugboard_detect(void)
|
|
{
|
|
int debug_board_detect = 0;
|
|
|
|
debug_board_detect = ZOOM2_SMSC911X_GPIO;
|
|
|
|
if (gpio_request(debug_board_detect, "Zoom2 debug board detect") < 0) {
|
|
printk(KERN_ERR "Failed to request GPIO%d for Zoom2 debug"
|
|
"board detect\n", debug_board_detect);
|
|
return 0;
|
|
}
|
|
gpio_direction_input(debug_board_detect);
|
|
|
|
if (!gpio_get_value(debug_board_detect)) {
|
|
gpio_free(debug_board_detect);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static struct platform_device *zoom2_devices[] __initdata = {
|
|
&zoom2_smsc911x_device,
|
|
&zoom2_debugboard_serial_device,
|
|
};
|
|
|
|
int __init omap_zoom2_debugboard_init(void)
|
|
{
|
|
if (!omap_zoom2_debugboard_detect())
|
|
return 0;
|
|
|
|
zoom2_init_smsc911x();
|
|
zoom2_init_quaduart();
|
|
return platform_add_devices(zoom2_devices, ARRAY_SIZE(zoom2_devices));
|
|
}
|