X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Farch%2Farm%2Fcpu%2Farm920t%2Fat91%2Fat91rm9200_devices.c;fp=qemu%2Froms%2Fu-boot%2Farch%2Farm%2Fcpu%2Farm920t%2Fat91%2Fat91rm9200_devices.c;h=fc54327c0d326df99cc277b2fffdf3cba4aeed42;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/arch/arm/cpu/arm920t/at91/at91rm9200_devices.c b/qemu/roms/u-boot/arch/arm/cpu/arm920t/at91/at91rm9200_devices.c
new file mode 100644
index 000000000..fc54327c0
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/arm920t/at91/at91rm9200_devices.c
@@ -0,0 +1,67 @@
+/*
+ * [partely copied from arch/arm/cpu/arm926ejs/at91/arm9260_devices.c]
+ *
+ * (C) Copyright 2011
+ * Andreas Bießmann <andreas.devel@googlemail.com>
+ *
+ * (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, 17, 1);		/* TXD0 */
+	at91_set_a_periph(AT91_PIO_PORTA, 18, 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_PORTB, 20, PUP);		/* RXD1 */
+	at91_set_a_periph(AT91_PIO_PORTB, 21, 1);		/* TXD1 */
+	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, 22, PUP);		/* RXD2 */
+	at91_set_a_periph(AT91_PIO_PORTA, 23, 1);		/* TXD2 */
+	writel(1 << ATMEL_ID_USART2, &pmc->pcer);
+}
+
+void at91_seriald_hw_init(void)
+{
+	at91_set_a_periph(AT91_PIO_PORTA, 30, PUP);		/* DRXD */
+	at91_set_a_periph(AT91_PIO_PORTA, 31, 1);		/* DTXD */
+	/* writing SYS to PCER has no effect on AT91RM9200 */
+}