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https://github.com/AsahiLinux/u-boot
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1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
41 lines
886 B
C
41 lines
886 B
C
/*
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* Copyright (C) 2009
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* Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/at91_spi.h>
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#include <asm/arch/gpio.h>
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#include <spi.h>
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#define SBC_A9260_CS0_PIN AT91_PIN_PA3
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#define SBC_A9260_CS1_PIN AT91_PIN_PC11
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int spi_cs_is_valid(unsigned int bus, unsigned int cs)
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{
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return bus == 0 && (cs == 1 || cs == 0);
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}
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void spi_cs_activate(struct spi_slave *slave)
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{
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if(slave->cs == 0)
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at91_set_gpio_value(SBC_A9260_CS0_PIN, 0);
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else if(slave->cs == 1)
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at91_set_gpio_value(SBC_A9260_CS1_PIN, 0);
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}
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void spi_cs_deactivate(struct spi_slave *slave)
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{
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if(slave->cs == 0)
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at91_set_gpio_value(SBC_A9260_CS0_PIN, 1);
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else if(slave->cs == 1)
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at91_set_gpio_value(SBC_A9260_CS1_PIN, 1);
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}
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void spi_init_f(void)
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{
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/* everything done in board_init */
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}
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