You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
|
|
/*
|
|
|
|
|
* 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 */
|
|
|
|
|
}
|
