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| author | Wu Zhangjin <wuzhangjin@gmail.com> | 2009-11-06 18:35:34 +0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-12-17 01:57:09 +0000 |
| commit | a3ed495190ebe918f4584291ed8c76f1c97a84fd (patch) | |
| tree | 700cc7549624c08b38d6003d63a7bb514fe09605 /arch/mips/loongson/common/init.c | |
| parent | 04cfb90a92a2f9f7b56b2f85c528be7d1561e0e5 (diff) | |
| download | lwn-a3ed495190ebe918f4584291ed8c76f1c97a84fd.tar.gz lwn-a3ed495190ebe918f4584291ed8c76f1c97a84fd.zip | |
MIPS: Loongson: Cleanup the serial port support
To share the same kernel image amon different machines we have added the
machtype command line support.
In the old serial port implementation the UART base address is hardcoded as
a macro in machine.h which breaks with machtype, so change that to discover
the address dynamically. Also move the initialization of the UART base
address to uart_base.c to avoid remapping twice for early_printk.c and
serial.c.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/581/
Patchwork: http://patchwork.linux-mips.org/patch/682/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/loongson/common/init.c')
| -rw-r--r-- | arch/mips/loongson/common/init.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/mips/loongson/common/init.c b/arch/mips/loongson/common/init.c index b7e4913627ab..3b1dbc1ca242 100644 --- a/arch/mips/loongson/common/init.c +++ b/arch/mips/loongson/common/init.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology + * Copyright (C) 2009 Lemote Inc. * Author: Wu Zhangjin, wuzj@lemote.com * * This program is free software; you can redistribute it and/or modify it @@ -10,19 +10,22 @@ #include <linux/bootmem.h> -#include <asm/bootinfo.h> - #include <loongson.h> void __init prom_init(void) { - /* init base address of io space */ + /* init base address of io space */ set_io_port_base((unsigned long) ioremap(LOONGSON_PCIIO_BASE, LOONGSON_PCIIO_SIZE)); prom_init_cmdline(); prom_init_env(); prom_init_memory(); + + /*init the uart base address */ +#if defined(CONFIG_EARLY_PRINTK) || defined(CONFIG_SERIAL_8250) + prom_init_uart_base(); +#endif } void __init prom_free_prom_memory(void) |