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| author | Wu Zhangjin <wuzhangjin@gmail.com> | 2009-11-28 14:21:50 +0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-12-17 01:57:34 +0000 |
| commit | c3d8d85019c9e4f6e4f23d194b6432a2c2464372 (patch) | |
| tree | 644e1cf5e7f215fa6789d96bce9fac7e14666846 /arch/mips/loongson/common/serial.c | |
| parent | c47a48d83a7a82c86ff3e74bdcabeee8f6e6b730 (diff) | |
| download | linux-c3d8d85019c9e4f6e4f23d194b6432a2c2464372.tar.gz linux-c3d8d85019c9e4f6e4f23d194b6432a2c2464372.tar.bz2 linux-c3d8d85019c9e4f6e4f23d194b6432a2c2464372.zip | |
MIPS: Loongson: Cleanups of serial port support
This patchs uses a loongson_uart_base variable instead of the
uart_base[] array and adds a new kernel option to avoid to compile
uart_base.c all the time, which will save a little bit of memory for us.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
http://patchwork.linux-mips.org/patch/727/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/loongson/common/serial.c')
| -rw-r--r-- | arch/mips/loongson/common/serial.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/mips/loongson/common/serial.c b/arch/mips/loongson/common/serial.c index ea29db099aee..23b66a5f88cb 100644 --- a/arch/mips/loongson/common/serial.c +++ b/arch/mips/loongson/common/serial.c @@ -57,12 +57,16 @@ static struct platform_device uart8250_device = { static int __init serial_init(void) { - if (uart8250_data[mips_machtype][0].iotype == UPIO_MEM) + unsigned char iotype; + + iotype = uart8250_data[mips_machtype][0].iotype; + + if (UPIO_MEM == iotype) uart8250_data[mips_machtype][0].membase = (void __iomem *)_loongson_uart_base; - else if (uart8250_data[mips_machtype][0].iotype == UPIO_PORT) + else if (UPIO_PORT == iotype) uart8250_data[mips_machtype][0].iobase = - uart8250_base[mips_machtype] - LOONGSON_PCIIO_BASE; + loongson_uart_base - LOONGSON_PCIIO_BASE; uart8250_device.dev.platform_data = uart8250_data[mips_machtype]; |