diff options
Diffstat (limited to 'arch/mips/loongson/common/uart_base.c')
| -rw-r--r-- | arch/mips/loongson/common/uart_base.c | 36 |
1 files changed, 36 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 000000000000..1d636f4f7505 --- /dev/null +++ b/arch/mips/loongson/common/uart_base.c @@ -0,0 +1,36 @@ +/* + * 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> + +unsigned long __maybe_unused _loongson_uart_base; +EXPORT_SYMBOL(_loongson_uart_base); + +unsigned long __maybe_unused uart8250_base[] = { + [MACH_LOONGSON_UNKNOWN] 0, + [MACH_LEMOTE_FL2E] (LOONGSON_PCIIO_BASE + 0x3f8), + [MACH_LEMOTE_FL2F] (LOONGSON_PCIIO_BASE + 0x2f8), + [MACH_LEMOTE_ML2F7] (LOONGSON_LIO1_BASE + 0x3f8), + [MACH_LEMOTE_YL2F89] (LOONGSON_LIO1_BASE + 0x3f8), + [MACH_DEXXON_GDIUM2F10] (LOONGSON_LIO1_BASE + 0x3f8), + [MACH_LEMOTE_NAS] (LOONGSON_LIO1_BASE + 0x3f8), + [MACH_LEMOTE_LL2F] (LOONGSON_PCIIO_BASE + 0x2f8), + [MACH_LOONGSON_END] 0, +}; +EXPORT_SYMBOL(uart8250_base); + +void __maybe_unused prom_init_uart_base(void) +{ + _loongson_uart_base = + (unsigned long)ioremap_nocache(uart8250_base[mips_machtype], 8); +} |