From a30c89ad41099f58922e0941e346e7c4371655b9 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 9 Oct 2008 18:41:34 +0900 Subject: 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 Signed-off-by: Paul Mundt --- arch/sh/boards/mach-migor/setup.c | 6 ++++-- arch/sh/include/asm/migor.h | 2 ++ 2 files changed, 6 insertions(+), 2 deletions(-) (limited to 'arch/sh') diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c index 003ce837734..3e3cc9da34a 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 70596d38fd6..e451f0229e0 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