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authorGabor Juhos <juhosg@openwrt.org>2013-12-20 11:41:23 +0000
committerGabor Juhos <juhosg@openwrt.org>2013-12-20 11:41:23 +0000
commitf2cd3399f729332fa3359266d57e441c9888cffe (patch)
treec0e88bc1f7fbb912d0878d8796cf684656d8ad1b
parent2b220f35506fb8d51178fb022323d1a8f6663caa (diff)
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ar71xx: allow to use large ethernet frames on AR934x SoCs
The hardware supports large ethernet frames. Override the maximum frame length and packet lenght mask in the platform data to allow to use large MTU on the ethernet interfaces. Limit the feature to AR934x SoCs for now. It should work on some other SoCs as well, but those has not been tested yet. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 39149
-rw-r--r--target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c b/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
index 8b54d0c817..da67478fe6 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
@@ -20,6 +20,7 @@
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/clk.h>
+#include <linux/sizes.h>
#include <asm/mach-ath79/ath79.h>
#include <asm/mach-ath79/ar71xx_regs.h>
@@ -958,6 +959,9 @@ void __init ath79_register_eth(unsigned int id)
pdata->has_gbit = 1;
pdata->is_ar724x = 1;
+ pdata->max_frame_len = SZ_16K - 1;
+ pdata->desc_pktlen_mask = SZ_16K - 1;
+
if (!pdata->fifo_cfg1)
pdata->fifo_cfg1 = 0x0010ffff;
if (!pdata->fifo_cfg2)