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authorAndy Green <andy@warmcat.com>2009-12-29 14:40:43 +0000
committerBen Dooks <ben-linux@fluff.org>2010-01-18 11:41:04 +0900
commita4e946947b966d018f3f712d5c7ca2932c2aadd2 (patch)
treef8d3559552eb4e86929a217619e74cd08d56bcab /arch/arm
parent810f613c03a1614c71a2b27859e91ae155bd659f (diff)
ARM: SMDK6410: Add comments on ethernet connectivity
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>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-s3c6410/mach-smdk6410.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c6410/mach-smdk6410.c b/arch/arm/mach-s3c6410/mach-smdk6410.c
index e7bae539af4..eb5de981c09 100644
--- a/arch/arm/mach-s3c6410/mach-smdk6410.c
+++ b/arch/arm/mach-s3c6410/mach-smdk6410.c
@@ -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,