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authorWolfgang Denk <wd@denx.de>2009-09-07 23:12:46 +0200
committerWolfgang Denk <wd@denx.de>2009-09-07 23:12:46 +0200
commit3ea43ff7738582e2ed00a2ede532c702f7b1d737 (patch)
tree4377a47f1c3df1a1f8d899975756a02acc807486 /board/calao/sbc35_a9g20/spi.c
parent9f23ca42b3ba19b24e66fade572f2b86d929b6e8 (diff)
parent2d4072c06b5549444e4140231bba3d47d9b0bc53 (diff)
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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.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/board/calao/sbc35_a9g20/spi.c b/board/calao/sbc35_a9g20/spi.c
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--- /dev/null
+++ b/board/calao/sbc35_a9g20/spi.c
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+/*
+ * 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 */
+}