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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>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39149 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Gabor Juhos 2013-12-20 11:41:23 +00:00
parent 397e584bfb
commit aa7f693d30
1 changed files with 4 additions and 0 deletions
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4
target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
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@ -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)