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ARM: SMDK6410: Add comments on ethernet connectivity

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LAN9115 Ethernet only works on SMDK6410 if certain switches
are set in specific ways.  Document the requirement.

Signed-off-by: Andy Green <andy@warmcat.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Andy Green 2009-12-29 14:40:43 +00:00 committed by Ben Dooks
parent 810f613c03
commit a4e946947b
1 changed files with 10 additions and 0 deletions
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10
arch/arm/mach-s3c6410/mach-smdk6410.c
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@ -155,6 +155,16 @@ static struct s3c_fb_platdata smdk6410_lcd_pdata __initdata = {
.vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
};
/*
* Configuring Ethernet on SMDK6410
*
* Both CS8900A and LAN9115 chips share one chip select mediated by CFG6.
* The constant address below corresponds to nCS1
*
* 1) Set CFGB2 p3 ON others off, no other CFGB selects "ethernet"
* 2) CFG6 needs to be switched to "LAN9115" side
*/
static struct resource smdk6410_smsc911x_resources[] = {
[0] = {
.start = S3C64XX_PA_XM0CSN1,