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| author | Ben Hutchings <ben.hutchings@codethink.co.uk> | 2015-03-03 00:52:39 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-02 21:30:56 -0500 |
| commit | 9b4a6364a6b3176511956ad186f8dffbe2e60c3e (patch) | |
| tree | bdfaccca948e80a1fa11bb060262ff0332832a91 | |
| parent | 6ded286555c2518be2f2d438f83dfaba3f0100fd (diff) | |
| download | blackbird-obmc-linux-9b4a6364a6b3176511956ad186f8dffbe2e60c3e.tar.gz blackbird-obmc-linux-9b4a6364a6b3176511956ad186f8dffbe2e60c3e.zip | |
Revert "sh_eth: Enable Rx descriptor word 0 shift for r8a7790"
This reverts commit fd9af07c3404ac9ecbd0d859563360f51ce1ffde.
The hardware manual states that the frame error and multicast bits are
copied to bits 9:0 of RD0, not bits 25:16. I've tested that this is
true for RFS1 (CRC error), RFS3 (frame too short), RFS4 (frame too
long) and RFS8 (multicast).
Also adjust a comment to agree with this.
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/renesas/sh_eth.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 3309494d12ad..3406cda57a45 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -508,7 +508,6 @@ static struct sh_eth_cpu_data r8a779x_data = { .tpauser = 1, .hw_swap = 1, .rmiimode = 1, - .shift_rd0 = 1, }; static void sh_eth_set_rate_sh7724(struct net_device *ndev) @@ -1462,8 +1461,8 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota) /* In case of almost all GETHER/ETHERs, the Receive Frame State * (RFS) bits in the Receive Descriptor 0 are from bit 9 to - * bit 0. However, in case of the R8A7740, R8A779x, and - * R7S72100 the RFS bits are from bit 25 to bit 16. So, the + * bit 0. However, in case of the R8A7740 and R7S72100 + * the RFS bits are from bit 25 to bit 16. So, the * driver needs right shifting by 16. */ if (mdp->cd->shift_rd0) |
