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authorMasahiro Yamada <yamada.m@jp.panasonic.com>2015-02-20 17:04:03 +0900
committerTom Rini <trini@ti.com>2015-02-21 08:23:51 -0500
commit620118403e1521b4c883848a84d2fb68e3fa1aa0 (patch)
tree880f15ded4ea034088c4155d56a4846e8edc54f0 /arch/arm/mach-at91/arm926ejs/at91sam9rl_devices.c
parent01f14456306c84f9bcd3945a10c98ae50e30542a (diff)
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ARM: at91: collect SoC sources into mach-at91
This commit moves source files as follows: arch/arm/cpu/arm920t/at91/* -> arch/arm/mach-at91/arm920t/* arch/arm/cpu/arm926ejs/at91/* -> arch/arm/mach-at91/arm926ejs/* arch/arm/cpu/armv7/at91/* -> arch/arm/mach-at91/armv7/* arch/arm/cpu/at91-common/* -> arch/arm/mach-at91/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Andreas Bießmann <andreas.devel@googlemail.co>
Diffstat (limited to 'arch/arm/mach-at91/arm926ejs/at91sam9rl_devices.c')
-rw-r--r--arch/arm/mach-at91/arm926ejs/at91sam9rl_devices.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/arm926ejs/at91sam9rl_devices.c b/arch/arm/mach-at91/arm926ejs/at91sam9rl_devices.c
new file mode 100644
index 0000000..0ec32c3
--- /dev/null
+++ b/arch/arm/mach-at91/arm926ejs/at91sam9rl_devices.c
@@ -0,0 +1,103 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian@popies.net>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/gpio.h>
+
+/*
+ * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all
+ * peripheral pins. Good to have if hardware is soldered optionally
+ * or in case of SPI no slave is selected. Avoid lines to float
+ * needlessly. Use a short local PUP define.
+ *
+ * Due to errata "TXD floats when CTS is inactive" pullups are always
+ * on for TXD pins.
+ */
+#ifdef CONFIG_AT91_GPIO_PULLUP
+# define PUP CONFIG_AT91_GPIO_PULLUP
+#else
+# define PUP 0
+#endif
+
+void at91_serial0_hw_init(void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTA, 6, 1); /* TXD0 */
+ at91_set_a_periph(AT91_PIO_PORTA, 7, PUP); /* RXD0 */
+ writel(1 << ATMEL_ID_USART0, &pmc->pcer);
+}
+
+void at91_serial1_hw_init(void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTA, 11, 1); /* TXD1 */
+ at91_set_a_periph(AT91_PIO_PORTA, 12, PUP); /* RXD1 */
+ writel(1 << ATMEL_ID_USART1, &pmc->pcer);
+}
+
+void at91_serial2_hw_init(void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTA, 13, 1); /* TXD2 */
+ at91_set_a_periph(AT91_PIO_PORTA, 14, PUP); /* RXD2 */
+ writel(1 << ATMEL_ID_USART2, &pmc->pcer);
+}
+
+void at91_seriald_hw_init(void)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTA, 21, PUP); /* DRXD */
+ at91_set_a_periph(AT91_PIO_PORTA, 22, 1); /* DTXD */
+ writel(1 << ATMEL_ID_SYS, &pmc->pcer);
+}
+
+#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI)
+void at91_spi0_hw_init(unsigned long cs_mask)
+{
+ at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
+
+ at91_set_a_periph(AT91_PIO_PORTA, 25, PUP); /* SPI0_MISO */
+ at91_set_a_periph(AT91_PIO_PORTA, 26, PUP); /* SPI0_MOSI */
+ at91_set_a_periph(AT91_PIO_PORTA, 27, PUP); /* SPI0_SPCK */
+
+ /* Enable clock */
+ writel(1 << ATMEL_ID_SPI, &pmc->pcer);
+
+ if (cs_mask & (1 << 0)) {
+ at91_set_a_periph(AT91_PIO_PORTA, 28, 1);
+ }
+ if (cs_mask & (1 << 1)) {
+ at91_set_b_periph(AT91_PIO_PORTB, 7, 1);
+ }
+ if (cs_mask & (1 << 2)) {
+ at91_set_a_periph(AT91_PIO_PORTD, 8, 1);
+ }
+ if (cs_mask & (1 << 3)) {
+ at91_set_b_periph(AT91_PIO_PORTD, 9, 1);
+ }
+ if (cs_mask & (1 << 4)) {
+ at91_set_pio_output(AT91_PIO_PORTA, 28, 1);
+ }
+ if (cs_mask & (1 << 5)) {
+ at91_set_pio_output(AT91_PIO_PORTB, 7, 1);
+ }
+ if (cs_mask & (1 << 6)) {
+ at91_set_pio_output(AT91_PIO_PORTD, 8, 1);
+ }
+ if (cs_mask & (1 << 7)) {
+ at91_set_pio_output(AT91_PIO_PORTD, 9, 1);
+ }
+}
+#endif