/*
* 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 ) ) ;
}