diff options
| author | Shawn Guo <shawn.guo@freescale.com> | 2011-01-06 00:13:13 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-01-10 02:42:56 +0300 |
| commit | b5680e0b591f2701c5ba7d5fc8f96b55414073c8 (patch) | |
| tree | 393a02162339aba1c10e6c558b078d82bf6cef96 /drivers/net/fec.h | |
| parent | bcc67771ed8ee31cc1f2b1e033ae822b40c72ff9 (diff) | |
| download | linux-b5680e0b591f2701c5ba7d5fc8f96b55414073c8.tar.xz | |
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 <shawn.guo@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/fec.h')
| -rw-r--r-- | drivers/net/fec.h | 5 |
1 files changed, 3 insertions, 2 deletions
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 */ |