kernel-ark/arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c
Ben Dooks b2a6cf3b1e [ARM] S3C24XX: Default SPI pin configuration for SPI
Add a set of default pin configuration routines for
setting up the SPI gpio configuration when using the
hardware SPI driver.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-12-15 21:45:42 +00:00

38 lines
1.2 KiB
C

/* linux/arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c
*
* Copyright (c) 2008 Simtec Electronics
* http://armlinux.simtec.co.uk/
* Ben Dooks <ben@simtec.co.uk>
*
* S3C24XX SPI - gpio configuration for bus 0 on gpe11,12,13
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*/
#include <linux/kernel.h>
#include <mach/hardware.h>
#include <mach/spi.h>
#include <mach/regs-gpio.h>
void s3c24xx_spi_gpiocfg_bus0_gpe11_12_13(struct s3c2410_spi_info *spi,
int enable)
{
if (enable) {
s3c2410_gpio_cfgpin(S3C2410_GPE13, S3C2410_GPE13_SPICLK0);
s3c2410_gpio_cfgpin(S3C2410_GPE12, S3C2410_GPE12_SPIMOSI0);
s3c2410_gpio_cfgpin(S3C2410_GPE11, S3C2410_GPE11_SPIMISO0);
s3c2410_gpio_pullup(S3C2410_GPE11, 0);
s3c2410_gpio_pullup(S3C2410_GPE13, 0);
} else {
s3c2410_gpio_cfgpin(S3C2410_GPE13, S3C2410_GPIO_INPUT);
s3c2410_gpio_cfgpin(S3C2410_GPE11, S3C2410_GPIO_INPUT);
s3c2410_gpio_pullup(S3C2410_GPE11, 1);
s3c2410_gpio_pullup(S3C2410_GPE12, 1);
s3c2410_gpio_pullup(S3C2410_GPE13, 1);
}
}