ar71xx: add lzma loader

[openwrt/openwrt.git] / target / linux / ar71xx / image / lzma-loader / src / board.c

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 (file)
index 0000000..f1f9744
--- /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)
+{
+}