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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b2a6cf3b1e
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>
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* linux/arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c
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*
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* Copyright (c) 2008 Simtec Electronics
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* http://armlinux.simtec.co.uk/
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* Ben Dooks <ben@simtec.co.uk>
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*
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* S3C24XX SPI - gpio configuration for bus 0 on gpe11,12,13
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License.
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*/
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#include <linux/kernel.h>
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#include <mach/hardware.h>
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#include <mach/spi.h>
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#include <mach/regs-gpio.h>
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void s3c24xx_spi_gpiocfg_bus0_gpe11_12_13(struct s3c2410_spi_info *spi,
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int enable)
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{
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if (enable) {
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s3c2410_gpio_cfgpin(S3C2410_GPE13, S3C2410_GPE13_SPICLK0);
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s3c2410_gpio_cfgpin(S3C2410_GPE12, S3C2410_GPE12_SPIMOSI0);
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s3c2410_gpio_cfgpin(S3C2410_GPE11, S3C2410_GPE11_SPIMISO0);
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s3c2410_gpio_pullup(S3C2410_GPE11, 0);
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s3c2410_gpio_pullup(S3C2410_GPE13, 0);
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} else {
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s3c2410_gpio_cfgpin(S3C2410_GPE13, S3C2410_GPIO_INPUT);
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s3c2410_gpio_cfgpin(S3C2410_GPE11, S3C2410_GPIO_INPUT);
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s3c2410_gpio_pullup(S3C2410_GPE11, 1);
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s3c2410_gpio_pullup(S3C2410_GPE12, 1);
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s3c2410_gpio_pullup(S3C2410_GPE13, 1);
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}
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}
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