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ar71xx: ag71xx: fix max frame length setup of the built-in switches 

The currently used bitmask of the maximum frame length field
is wrong for both models. On AR724x/AR933x the largest frame
size is 2047 bytes, on the AR934x it is 16383 bytes.

Make the MTU setup code model specific, and use the correct
bitmask for both models. Also change the value to the maximum.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39148 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Gabor Juhos 2013-12-20 11:41:22 +00:00
parent 1f01aeabb0
commit 397e584bfb
1 changed files with 12 additions and 5 deletions
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17
target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c
View File

@ -36,7 +36,8 @@
#define AR7240_FLOOD_MASK_BROAD_TO_CPU BIT(26)
#define AR7240_REG_GLOBAL_CTRL 0x30
#define AR7240_GLOBAL_CTRL_MTU_M BITM(12)
#define AR7240_GLOBAL_CTRL_MTU_M BITM(11)
#define AR9340_GLOBAL_CTRL_MTU_M BITM(14)
#define AR7240_REG_VTU 0x0040
#define AR7240_VTU_OP BITM(3)
@ -586,6 +587,11 @@ static void ar7240sw_setup(struct ar7240sw *as)
AR934X_FLOOD_MASK_BC_DP(0) |
AR934X_FLOOD_MASK_MC_DP(0));
/* setup MTU */
ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL,
AR9340_GLOBAL_CTRL_MTU_M,
AR9340_GLOBAL_CTRL_MTU_M);
/* Enable MIB counters */
ar7240sw_reg_set(mii, AR7240_REG_MIB_FUNCTION0,
AR934X_MIB_ENABLE);
@ -601,11 +607,12 @@ static void ar7240sw_setup(struct ar7240sw *as)
/* Enable Broadcast frames transmitted to the CPU */
ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK,
AR7240_FLOOD_MASK_BROAD_TO_CPU);
}
/* setup MTU */
ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL, AR7240_GLOBAL_CTRL_MTU_M,
1536);
/* setup MTU */
ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL,
AR7240_GLOBAL_CTRL_MTU_M,
AR7240_GLOBAL_CTRL_MTU_M);
}
/* setup Service TAG */
ar7240sw_reg_rmw(mii, AR7240_REG_SERVICE_TAG, AR7240_SERVICE_TAG_M, 0);