diff options
| author | Magnus Damm <damm@igel.co.jp> | 2008-10-09 13:41:34 +0400 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-10-20 06:38:35 +0400 |
| commit | a30c89ad41099f58922e0941e346e7c4371655b9 (patch) | |
| tree | 14db08997fb568f02b75cab6452c9c413c54bc92 /arch | |
| parent | 9a19eb2a6607f2f6329efb3c4637fe23afae2cd7 (diff) | |
| download | linux-a30c89ad41099f58922e0941e346e7c4371655b9.tar.xz | |
sh: reduce Migo-R smc91x overruns
Improve Migo-R ethernet performance by reducing smc91x overruns.
This is done by enabling SMC91X_NOWAIT and optimizing CS4 setup.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/boards/mach-migor/setup.c | 6 | ||||
| -rw-r--r-- | arch/sh/include/asm/migor.h | 2 |
2 files changed, 6 insertions, 2 deletions
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c index 003ce837734d..3e3cc9da34ad 100644 --- a/arch/sh/boards/mach-migor/setup.c +++ b/arch/sh/boards/mach-migor/setup.c @@ -37,7 +37,7 @@ */ static struct smc91x_platdata smc91x_info = { - .flags = SMC91X_USE_16BIT, + .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT, }; static struct resource smc91x_eth_resources[] = { @@ -463,8 +463,10 @@ static int __init migor_devices_setup(void) gpio_direction_output(GPIO_PTJ5, 1); gpio_export(GPIO_PTJ5, 0); - /* SMC91C111 */ + /* SMC91C111 - Enable IRQ0, Setup CS4 for 16-bit fast access */ gpio_request(GPIO_FN_IRQ0, NULL); + ctrl_outl(0x00003400, BSC_CS4BCR); + ctrl_outl(0x00110080, BSC_CS4WCR); /* KEYSC */ clk_always_enable("mstp214"); /* KEYSC */ diff --git a/arch/sh/include/asm/migor.h b/arch/sh/include/asm/migor.h index 70596d38fd67..e451f0229e00 100644 --- a/arch/sh/include/asm/migor.h +++ b/arch/sh/include/asm/migor.h @@ -52,7 +52,9 @@ #define PORT_HIZCRB 0xa405015a #define PORT_HIZCRC 0xa405015c +#define BSC_CS4BCR 0xfec10010 #define BSC_CS6ABCR 0xfec1001c +#define BSC_CS4WCR 0xfec10030 #include <video/sh_mobile_lcdc.h> |