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Diffstat (limited to 'cpu/arm926ejs/at91/at91sam9rl_devices.c')
-rw-r--r--cpu/arm926ejs/at91/at91sam9rl_devices.c113
1 files changed, 113 insertions, 0 deletions
diff --git a/cpu/arm926ejs/at91/at91sam9rl_devices.c b/cpu/arm926ejs/at91/at91sam9rl_devices.c
new file mode 100644
index 0000000..ebed193
--- /dev/null
+++ b/cpu/arm926ejs/at91/at91sam9rl_devices.c
@@ -0,0 +1,113 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.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/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/io.h>
+
+void at91_serial0_hw_init(void)
+{
+ at91_set_A_periph(AT91_PIN_PA6, 1); /* TXD0 */
+ at91_set_A_periph(AT91_PIN_PA7, 0); /* RXD0 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_US0);
+}
+
+void at91_serial1_hw_init(void)
+{
+ at91_set_A_periph(AT91_PIN_PA11, 1); /* TXD1 */
+ at91_set_A_periph(AT91_PIN_PA12, 0); /* RXD1 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_US1);
+}
+
+void at91_serial2_hw_init(void)
+{
+ at91_set_A_periph(AT91_PIN_PA13, 1); /* TXD2 */
+ at91_set_A_periph(AT91_PIN_PA14, 0); /* RXD2 */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_US2);
+}
+
+void at91_serial3_hw_init(void)
+{
+ at91_set_A_periph(AT91_PIN_PA21, 0); /* DRXD */
+ at91_set_A_periph(AT91_PIN_PA22, 1); /* DTXD */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
+}
+
+void at91_serial_hw_init(void)
+{
+#ifdef CONFIG_USART0
+ at91_serial0_hw_init();
+#endif
+
+#ifdef CONFIG_USART1
+ at91_serial1_hw_init();
+#endif
+
+#ifdef CONFIG_USART2
+ at91_serial2_hw_init();
+#endif
+
+#ifdef CONFIG_USART3 /* DBGU */
+ at91_serial3_hw_init();
+#endif
+}
+
+#ifdef CONFIG_HAS_DATAFLASH
+void at91_spi0_hw_init(unsigned long cs_mask)
+{
+ at91_set_A_periph(AT91_PIN_PA25, 0); /* SPI0_MISO */
+ at91_set_A_periph(AT91_PIN_PA26, 0); /* SPI0_MOSI */
+ at91_set_A_periph(AT91_PIN_PA27, 0); /* SPI0_SPCK */
+
+ /* Enable clock */
+ at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_SPI);
+
+ if (cs_mask & (1 << 0)) {
+ at91_set_A_periph(AT91_PIN_PA28, 1);
+ }
+ if (cs_mask & (1 << 1)) {
+ at91_set_B_periph(AT91_PIN_PB7, 1);
+ }
+ if (cs_mask & (1 << 2)) {
+ at91_set_A_periph(AT91_PIN_PD8, 1);
+ }
+ if (cs_mask & (1 << 3)) {
+ at91_set_B_periph(AT91_PIN_PD9, 1);
+ }
+ if (cs_mask & (1 << 4)) {
+ at91_set_gpio_output(AT91_PIN_PA28, 1);
+ }
+ if (cs_mask & (1 << 5)) {
+ at91_set_gpio_output(AT91_PIN_PB7, 1);
+ }
+ if (cs_mask & (1 << 6)) {
+ at91_set_gpio_output(AT91_PIN_PD8, 1);
+ }
+ if (cs_mask & (1 << 7)) {
+ at91_set_gpio_output(AT91_PIN_PD9, 1);
+ }
+}
+#endif