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author | Wolfgang Denk <wd@denx.de> | 2009-09-07 23:12:46 +0200 |
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committer | Wolfgang Denk <wd@denx.de> | 2009-09-07 23:12:46 +0200 |
commit | 3ea43ff7738582e2ed00a2ede532c702f7b1d737 (patch) | |
tree | 4377a47f1c3df1a1f8d899975756a02acc807486 /board/calao/sbc35_a9g20/spi.c | |
parent | 9f23ca42b3ba19b24e66fade572f2b86d929b6e8 (diff) | |
parent | 2d4072c06b5549444e4140231bba3d47d9b0bc53 (diff) | |
download | u-boot-imx-3ea43ff7738582e2ed00a2ede532c702f7b1d737.zip u-boot-imx-3ea43ff7738582e2ed00a2ede532c702f7b1d737.tar.gz u-boot-imx-3ea43ff7738582e2ed00a2ede532c702f7b1d737.tar.bz2 |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'board/calao/sbc35_a9g20/spi.c')
-rw-r--r-- | board/calao/sbc35_a9g20/spi.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/board/calao/sbc35_a9g20/spi.c b/board/calao/sbc35_a9g20/spi.c new file mode 100644 index 0000000..1057fa2 --- /dev/null +++ b/board/calao/sbc35_a9g20/spi.c @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2009 + * Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#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 */ +} |