summaryrefslogtreecommitdiff
path: root/arch/mips/loongson64/common/early_printk.c
diff options
context:
space:
mode:
authorJiaxun Yang <jiaxun.yang@flygoat.com>2019-10-20 18:01:35 +0300
committerPaul Burton <paulburton@kernel.org>2019-11-02 00:31:28 +0300
commit1bdb7b76705a38936e9875950587ea91c9ec0a98 (patch)
treee1a0946643e6dcee33b9f64736bda0dd78b6ffb3 /arch/mips/loongson64/common/early_printk.c
parent5831fdb099ddeec9849658cd534fdcbb03aa6ff9 (diff)
downloadlinux-1bdb7b76705a38936e9875950587ea91c9ec0a98.tar.xz
MIPS: Loongson64: Cleanup unused code
Clean up legacy code after stripping out Loongson2ef code. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: linux-mips@vger.kernel.org Cc: paul.burton@mips.com
Diffstat (limited to 'arch/mips/loongson64/common/early_printk.c')
-rw-r--r--arch/mips/loongson64/common/early_printk.c38
1 files changed, 0 insertions, 38 deletions
diff --git a/arch/mips/loongson64/common/early_printk.c b/arch/mips/loongson64/common/early_printk.c
deleted file mode 100644
index 5e2a151aa30c..000000000000
--- a/arch/mips/loongson64/common/early_printk.c
+++ /dev/null
@@ -1,38 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/* early printk support
- *
- * Copyright (c) 2009 Philippe Vachon <philippe@cowpig.ca>
- * Copyright (c) 2009 Lemote Inc.
- * Author: Wu Zhangjin, wuzhangjin@gmail.com
- */
-#include <linux/serial_reg.h>
-#include <asm/setup.h>
-
-#include <loongson.h>
-
-#define PORT(base, offset) (u8 *)(base + offset)
-
-static inline unsigned int serial_in(unsigned char *base, int offset)
-{
- return readb(PORT(base, offset));
-}
-
-static inline void serial_out(unsigned char *base, int offset, int value)
-{
- writeb(value, PORT(base, offset));
-}
-
-void prom_putchar(char c)
-{
- int timeout;
- unsigned char *uart_base;
-
- uart_base = (unsigned char *)_loongson_uart_base[0];
- timeout = 1024;
-
- while (((serial_in(uart_base, UART_LSR) & UART_LSR_THRE) == 0) &&
- (timeout-- > 0))
- ;
-
- serial_out(uart_base, UART_TX, c);
-}