ar71xx: add lzma loader

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29443 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 36 insertions, 0 deletions

diff --git a/target/linux/ar71xx/image/lzma-loader/src/board.c b/target/linux/ar71xx/image/lzma-loader/src/board.c
new file mode 100644
index 0000000000..f1f97442f5
--- /dev/null
+++ b/target/linux/ar71xx/image/lzma-loader/src/board.c
@@ -0,0 +1,36 @@
+/*
+ * LZMA compressed kernel loader for Atheros AR7XXX/AR9XXX based boards
+ *
+ * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <stddef.h>
+#include "config.h"
+
+#define READREG(r)	*(volatile unsigned int *)(r)
+#define WRITEREG(r,v)	*(volatile unsigned int *)(r) = v
+
+#define UART_BASE	0xb8020000
+
+#define UART_TX		0
+#define UART_LSR	5
+
+#define UART_LSR_THRE   0x20
+
+#define UART_READ(r)		READREG(UART_BASE + 4 * (r))
+#define UART_WRITE(r,v)		WRITEREG(UART_BASE + 4 * (r), (v))
+
+void board_putc(int ch)
+{
+	while (((UART_READ(UART_LSR)) & UART_LSR_THRE) == 0);
+	UART_WRITE(UART_TX, ch);
+	while (((UART_READ(UART_LSR)) & UART_LSR_THRE) == 0);
+}
+
+void board_init(void)
+{
+}