From 9453967e28c5e3abbf856f95735ea69bae1e77fa Mon Sep 17 00:00:00 2001 From: Albin Tonnerre Date: Mon, 24 Aug 2009 18:03:26 +0200 Subject: Add support for the Calao SBC35-A9G20 board The Calao SBC35-A9G20 board is manufactured and sold by Calao Systems . It is built around an AT91SAM9G20 ARM SoC running at 400MHz. It features an Ethernet port, an SPI RTC backed by an onboard battery , an SD/MMC slot, a CompactFlash slot, 64Mo of SDRAM, 256Mo of NAND flash, two USB host ports, and an USB device port. More informations can be found at Signed-off-by: Albin Tonnerre --- board/calao/sbc35_a9g20/spi.c | 57 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 board/calao/sbc35_a9g20/spi.c (limited to 'board/calao/sbc35_a9g20/spi.c') diff --git a/board/calao/sbc35_a9g20/spi.c b/board/calao/sbc35_a9g20/spi.c new file mode 100644 index 0000000000..1057fa2e99 --- /dev/null +++ b/board/calao/sbc35_a9g20/spi.c @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2009 + * Albin Tonnerre, Free Electrons + * + * 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 +#include +#include +#include +#include + +#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 */ +} -- cgit v1.2.1