ramips: Add support for mt7621 to lzma-loader

Signed-off-by: Tobias Schramm <tobleminer@gmail.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/target/linux/ramips/image/lzma-loader/src/board-mt7621.c b/target/linux/ramips/image/lzma-loader/src/board-mt7621.c
new file mode 100644
index 0000000000..b90b2ed89f
--- /dev/null
+++ b/target/linux/ramips/image/lzma-loader/src/board-mt7621.c
@@ -0,0 +1,39 @@
+/*
+ * Arch specific code for mt7621 based boards, based on code for Ralink boards
+ *
+ * Copyright (C) 2018 Tobias Schramm <tobleminer@gmail.com>
+ *
+ * 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 <stdint.h>
+#include "config.h"
+
+#define READREG(r)		*(volatile uint32_t *)(r)
+#define WRITEREG(r,v)		*(volatile uint32_t *)(r) = v
+
+#define KSEG1ADDR(_x)		(((_x) & 0x1fffffff) | 0xa0000000)
+
+#define UART_BASE		0xBE000C00
+
+#define UART_TBR_OFFSET		0x00
+#define UART_LSR_OFFSET		0x14
+
+#define UART_LSR_TEMT		(1 << 6)
+
+#define UART_READ(r)		READREG(UART_BASE + (r))
+#define UART_WRITE(r,v)		WRITEREG(UART_BASE + (r), (v))
+
+void board_putc(int ch)
+{
+	while (((UART_READ(UART_LSR_OFFSET)) & UART_LSR_TEMT) == 0);
+	UART_WRITE(UART_TBR_OFFSET, ch);
+	while (((UART_READ(UART_LSR_OFFSET)) & UART_LSR_TEMT) == 0);
+}
+
+void board_init(void)
+{
+}