diff options
Diffstat (limited to 'target/linux/leon/patches/018-greth_compat_mode.patch')
| -rw-r--r-- | target/linux/leon/patches/018-greth_compat_mode.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/target/linux/leon/patches/018-greth_compat_mode.patch b/target/linux/leon/patches/018-greth_compat_mode.patch new file mode 100644 index 000000000..4afe89eb0 --- /dev/null +++ b/target/linux/leon/patches/018-greth_compat_mode.patch @@ -0,0 +1,41 @@ +From a498d7076ee0f82ec3f508293a9cf1ccba15829e Mon Sep 17 00:00:00 2001 +From: Daniel Hellstrom <daniel@gaisler.com> +Date: Wed, 1 Dec 2010 16:52:19 +0100 +Subject: [PATCH] GRETH: added greth_compat_mode module parameter + +The greth_compat_mode option can be used to set a GRETH GBit capable MAC +in operate as if the GRETH 10/100 device was found. The GRETH GBit supports +TCP/UDP checksum offloading, unaligned frame buffers, scatter gather etc. +Enabling this mode allows the developer to test the GRETH 10/100 device +without all features mentioned above on a GBit MAC capable of the above. + +Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> +--- + drivers/net/greth.c | 9 +++++++++ + 1 files changed, 9 insertions(+), 0 deletions(-) + +--- a/drivers/net/greth.c ++++ b/drivers/net/greth.c +@@ -70,6 +70,11 @@ static int no_gbit = 0; + module_param(no_gbit, int, S_IRUGO); + MODULE_PARM_DESC(no_gbit, "GRETH report GBit not supported by MAC enable. Only affects GRETH GBit MAC, default 0 (off)."); + ++/* Use this option to enable GRETH 10/100 code on GRETH_GBIT hardware (debug legacy code option) */ ++static int compat_mode = 0; ++module_param(compat_mode, int, S_IRUGO); ++MODULE_PARM_DESC(compat_mode, "GRETH 10/100 legacy mode enable. Only affects GRETH GBit MAC, default 0 (off)."); ++ + static int greth_open(struct net_device *dev); + static netdev_tx_t greth_start_xmit(struct sk_buff *skb, + struct net_device *dev); +@@ -1452,6 +1457,10 @@ static int __devinit greth_of_probe(stru + else + greth->gbit_phy_support = 0; + ++ /* Force GBit MAC in legacy 10/100 mode (no offloading etc.) */ ++ if (compat_mode == 1) ++ greth->gbit_mac = 0; ++ + /* Check for multicast capability */ + greth->multicast = (tmp >> 25) & 1; + |