lantiq: add a better fix to strip FCS from ethernet packets on XRX200

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 44771

diff --git a/target/linux/lantiq/patches-3.18/0100-lantiq-xrx200-enable-remove-crc.patch b/target/linux/lantiq/patches-3.18/0100-lantiq-xrx200-enable-remove-crc.patch
new file mode 100644 (file)
index 0000000..60a1937
--- /dev/null
+++ b/target/linux/lantiq/patches-3.18/0100-lantiq-xrx200-enable-remove-crc.patch
@@ -0,0 +1,25 @@
+--- a/drivers/net/ethernet/lantiq_xrx200.c
++++ b/drivers/net/ethernet/lantiq_xrx200.c
+@@ -143,6 +143,7 @@
+ #define PMAC_IPG_MASK         0xf
+ #define PMAC_HD_CTL_AS                0x0008
+ #define PMAC_HD_CTL_AC                0x0004
++#define PMAC_HD_CTL_RC                0x0010
+ #define PMAC_HD_CTL_RXSH      0x0040
+ #define PMAC_HD_CTL_AST               0x0080
+ #define PMAC_HD_CTL_RST               0x0100
+@@ -1502,12 +1503,12 @@ static void xrx200_hw_init(struct xrx200
+ #ifdef SW_ROUTING
+       /* enable status header, enable CRC */
+       ltq_pmac_w32_mask(0,
+-              PMAC_HD_CTL_RST | PMAC_HD_CTL_AST | PMAC_HD_CTL_RXSH | PMAC_HD_CTL_AS | PMAC_HD_CTL_AC,
++              PMAC_HD_CTL_RST | PMAC_HD_CTL_AST | PMAC_HD_CTL_RXSH | PMAC_HD_CTL_AS | PMAC_HD_CTL_AC | PMAC_HD_CTL_RC,
+               PMAC_HD_CTL);
+ #else
+       /* disable status header, enable CRC */
+       ltq_pmac_w32_mask(PMAC_HD_CTL_AST | PMAC_HD_CTL_RXSH | PMAC_HD_CTL_AS,
+-              PMAC_HD_CTL_AC,
++              PMAC_HD_CTL_AC | PMAC_HD_CTL_RC,
+               PMAC_HD_CTL);
+ #endif
+