From b5680e0b591f2701c5ba7d5fc8f96b55414073c8 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Wed, 5 Jan 2011 21:13:13 +0000 Subject: net/fec: add dual fec support for mx28 This patch is to add mx28 dual fec support. Here are some key notes for mx28 fec controller. - The mx28 fec controller naming ENET-MAC is a different IP from FEC used on other i.mx variants. But they are basically compatible on software interface, so it's possible to share the same driver. - ENET-MAC design on mx28 made an improper assumption that it runs on a big-endian system. As the result, driver has to swap every frame going to and coming from the controller. - The external phys can only be configured by fec0, which means fec1 can not work independently and both phys need to be configured by mii_bus attached on fec0. - ENET-MAC reset will get mac address registers reset too. - ENET-MAC MII/RMII mode and 10M/100M speed are configured differently FEC. - ETHER_EN bit must be set to get ENET-MAC interrupt work. Signed-off-by: Shawn Guo Signed-off-by: David S. Miller --- drivers/net/fec.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/net/fec.h') diff --git a/drivers/net/fec.h b/drivers/net/fec.h index 2c48b25668d5..ace318df4c8d 100644 --- a/drivers/net/fec.h +++ b/drivers/net/fec.h @@ -14,7 +14,8 @@ /****************************************************************************/ #if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \ - defined(CONFIG_M520x) || defined(CONFIG_M532x) || defined(CONFIG_ARCH_MXC) + defined(CONFIG_M520x) || defined(CONFIG_M532x) || \ + defined(CONFIG_ARCH_MXC) || defined(CONFIG_SOC_IMX28) /* * Just figures, Motorola would have to change the offsets for * registers in the same peripheral device on different models @@ -78,7 +79,7 @@ /* * Define the buffer descriptor structure. */ -#ifdef CONFIG_ARCH_MXC +#if defined(CONFIG_ARCH_MXC) || defined(CONFIG_SOC_IMX28) struct bufdesc { unsigned short cbd_datlen; /* Data length */ unsigned short cbd_sc; /* Control and status info */ -- cgit v1.2.1