u-boot/board/calao/sbc35_a9g20/spi.c
Wolfgang Denk 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00

41 lines
886 B
C

/*
* Copyright (C) 2009
* Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/hardware.h>
#include <asm/arch/at91_spi.h>
#include <asm/arch/gpio.h>
#include <spi.h>
#define SBC_A9260_CS0_PIN AT91_PIN_PA3
#define SBC_A9260_CS1_PIN AT91_PIN_PC11
int spi_cs_is_valid(unsigned int bus, unsigned int cs)
{
return bus == 0 && (cs == 1 || cs == 0);
}
void spi_cs_activate(struct spi_slave *slave)
{
if(slave->cs == 0)
at91_set_gpio_value(SBC_A9260_CS0_PIN, 0);
else if(slave->cs == 1)
at91_set_gpio_value(SBC_A9260_CS1_PIN, 0);
}
void spi_cs_deactivate(struct spi_slave *slave)
{
if(slave->cs == 0)
at91_set_gpio_value(SBC_A9260_CS0_PIN, 1);
else if(slave->cs == 1)
at91_set_gpio_value(SBC_A9260_CS1_PIN, 1);
}
void spi_init_f(void)
{
/* everything done in board_init */
}