Signed-off-by: Simon Glass <s...@chromium.org>
---
arch/arm/cpu/armv7/tegra2/board.c | 51 ++++++++++++++++++++++++++++++
arch/arm/include/asm/arch-tegra2/board.h | 30 +++++++++++++++++
2 files changed, 81 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/include/asm/arch-tegra2/board.h
diff --git a/arch/arm/cpu/armv7/tegra2/board.c
b/arch/arm/cpu/armv7/tegra2/board.c
index 2fd38ae..2fd493c 100644
--- a/arch/arm/cpu/armv7/tegra2/board.c
+++ b/arch/arm/cpu/armv7/tegra2/board.c
@@ -24,12 +24,22 @@
#include <common.h>
#include <asm/io.h>
#include "ap20.h"
+#include <asm/arch/clock.h>
+#include <asm/arch/funcmux.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/tegra2.h>
#include <asm/arch/pmc.h>
DECLARE_GLOBAL_DATA_PTR;
+enum {
+ /* UARTs which we can enable */
+ UARTA = 1 << 0,
+ UARTB = 1 << 1,
+ UARTD = 1 << 3,
+ UART_COUNT = 4,
+};
+
/*
* Boot ROM initializes the odmdata in APBDEV_PMC_SCRATCH20_0,
* so we are using this value to identify memory size.
@@ -89,3 +99,44 @@ int arch_cpu_init(void)
return 0;
}
#endif
+
+/**
+ * Set up the specified uarts
+ *
+ * @param uarts_ids Mask containing UARTs to init (UARTx)
+ */
+static void setup_uarts(int uart_ids)
+{
+ static enum periph_id id_for_uart[UART_COUNT] = {
+ PERIPH_ID_UART1,
+ PERIPH_ID_UART2,
+ PERIPH_ID_UART3,
+ PERIPH_ID_UART4,
+ };
+ int i;
+
+ for (i = 0; i < UART_COUNT; i++) {
+ if (uart_ids & (1 << i)) {
+ enum periph_id id = id_for_uart[i];
+
+ funcmux_select(id, 0);
+ funcmux_enable_f(id);
+ }
+ }
+}
+
+void board_init_uart_f(void)
+{
+ int uart_ids = 0; /* bit mask of which UART ids to enable */
+
+#ifdef CONFIG_TEGRA2_ENABLE_UARTA
+ uart_ids |= UARTA;
+#endif
+#ifdef CONFIG_TEGRA2_ENABLE_UARTB
+ uart_ids |= UARTB;
+#endif
+#ifdef CONFIG_TEGRA2_ENABLE_UARTD
+ uart_ids |= UARTD;
+#endif
+ setup_uarts(uart_ids);
+}
diff --git a/arch/arm/include/asm/arch-tegra2/board.h
b/arch/arm/include/asm/arch-tegra2/board.h
new file mode 100644
index 0000000..a90d36c
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra2/board.h
@@ -0,0 +1,30 @@
+/*
+ * (C) Copyright 2010,2011
+ * NVIDIA Corporation <www.nvidia.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
+ */
+
+#ifndef _TEGRA_BOARD_H_
+#define _TEGRA_BOARD_H_
+
+/* Setup UARTs for the board according to the selected config */
+void board_init_uart_f(void);
+
+#endif
--
1.7.3.1
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