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Commit a30c89ad authored by Magnus Damm's avatar Magnus Damm Committed by Paul Mundt
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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: default avatarMagnus Damm <damm@igel.co.jp>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 9a19eb2a

arch/sh/boards/mach-migor/setup.c

+4 −2
Original line number Diff line number Diff line
@@ -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 */

arch/sh/include/asm/migor.h

+2 −0
Original line number Diff line number Diff line
@@ -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>