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| author | Felix Fietkau <nbd@openwrt.org> | 2010-02-16 18:29:16 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2010-02-16 18:29:16 +0000 |
| commit | 2253350aa6a1cc0cea67d5ac5990f7fd77c46898 (patch) | |
| tree | 6c528537f405cfbec0b4dcd7e3792845b8c6c324 /target/linux/mpc83xx | |
| parent | c5282720252d26ae9da5f3f0e41841746a7284e7 (diff) | |
| download | master-187ad058-2253350aa6a1cc0cea67d5ac5990f7fd77c46898.tar.gz master-187ad058-2253350aa6a1cc0cea67d5ac5990f7fd77c46898.tar.bz2 master-187ad058-2253350aa6a1cc0cea67d5ac5990f7fd77c46898.zip | |
mpc83xx: add a workaround for erratum eTSEC27 in earlier mpc8313 chip revs
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19670 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/mpc83xx')
| -rw-r--r-- | target/linux/mpc83xx/patches-2.6.32/110-etsec27_war.patch | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/target/linux/mpc83xx/patches-2.6.32/110-etsec27_war.patch b/target/linux/mpc83xx/patches-2.6.32/110-etsec27_war.patch new file mode 100644 index 0000000000..111434b2cd --- /dev/null +++ b/target/linux/mpc83xx/patches-2.6.32/110-etsec27_war.patch @@ -0,0 +1,18 @@ +--- a/drivers/net/gianfar.c ++++ b/drivers/net/gianfar.c +@@ -334,7 +334,14 @@ static int gfar_probe(struct of_device * + /* We need to delay at least 3 TX clocks */ + udelay(2); + +- tempval = (MACCFG1_TX_FLOW | MACCFG1_RX_FLOW); ++ /* ++ * Do not enable flow control on chips earlier than rev 1.1, ++ * because of the eTSEC27 erratum ++ */ ++ tempval = 0; ++ if (mfspr(SPRN_SVR) & 0xffff >= 0x0011) ++ tempval = (MACCFG1_TX_FLOW | MACCFG1_RX_FLOW); ++ + gfar_write(&priv->regs->maccfg1, tempval); + + /* Initialize MACCFG2. */ |