diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-17 16:38:06 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-17 16:38:06 -0800 |
commit | dbfc985195410dad803c845743c63cd73bd1fe32 (patch) | |
tree | 6bf6dbecb92539285ebb89948e63e691a0947941 /arch/mips/loongson/common/uart_base.c | |
parent | 7c508e50be47737b9a72d0f15c3ef1146925e2d2 (diff) | |
parent | 606d62fa02cf1da43c6e21521650fff07a2e56d1 (diff) |
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (71 commits)
MIPS: Lasat: Fix botched changes to sysctl code.
RTC: rtc-cmos.c: Fix warning on MIPS
MIPS: Cleanup random differences beween lmo and Linus' kernel.
MIPS: No longer hardwire CONFIG_EMBEDDED to y
MIPS: Fix and enhance built-in kernel command line
MIPS: eXcite: Remove platform.
MIPS: Loongson: Cleanups of serial port support
MIPS: Lemote 2F: Suspend CS5536 MFGPT Timer
MIPS: Excite: move iodev_remove to .devexit.text
MIPS: Lasat: Convert to proc_fops / seq_file
MIPS: Cleanup signal code initialization
MIPS: Modularize COP2 handling
MIPS: Move EARLY_PRINTK to Kconfig.debug
MIPS: Yeeloong 2F: Cleanup reset logic using the new ec_write function
MIPS: Yeeloong 2F: Add LID open event as the wakeup event
MIPS: Yeeloong 2F: Add basic EC operations
MIPS: Move several variables from .bss to .init.data
MIPS: Tracing: Make function graph tracer work with -mmcount-ra-address
MIPS: Tracing: Reserve $12(t0) for mcount-ra-address of gcc 4.5
MIPS: Tracing: Make ftrace for MIPS work without -fno-omit-frame-pointer
...
Diffstat (limited to 'arch/mips/loongson/common/uart_base.c')
-rw-r--r-- | arch/mips/loongson/common/uart_base.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/mips/loongson/common/uart_base.c b/arch/mips/loongson/common/uart_base.c new file mode 100644 index 00000000000..78ff66ae749 --- /dev/null +++ b/arch/mips/loongson/common/uart_base.c @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2009 Lemote Inc. + * Author: Wu Zhangjin, wuzj@lemote.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/module.h> +#include <asm/bootinfo.h> + +#include <loongson.h> + +/* ioremapped */ +unsigned long _loongson_uart_base; +EXPORT_SYMBOL(_loongson_uart_base); +/* raw */ +unsigned long loongson_uart_base; +EXPORT_SYMBOL(loongson_uart_base); + +void prom_init_loongson_uart_base(void) +{ + switch (mips_machtype) { + case MACH_LEMOTE_FL2E: + loongson_uart_base = LOONGSON_PCIIO_BASE + 0x3f8; + break; + case MACH_LEMOTE_FL2F: + case MACH_LEMOTE_LL2F: + loongson_uart_base = LOONGSON_PCIIO_BASE + 0x2f8; + break; + case MACH_LEMOTE_ML2F7: + case MACH_LEMOTE_YL2F89: + case MACH_DEXXON_GDIUM2F10: + case MACH_LEMOTE_NAS: + default: + /* The CPU provided serial port */ + loongson_uart_base = LOONGSON_LIO1_BASE + 0x3f8; + break; + } + + _loongson_uart_base = + (unsigned long)ioremap_nocache(loongson_uart_base, 8); +} |