diff options
| author | Eric Nelson <eric.nelson@boundarydevices.com> | 2012-12-13 11:10:55 -0700 |
|---|---|---|
| committer | Eric Nelson <eric.nelson@boundarydevices.com> | 2013-02-12 10:46:55 -0700 |
| commit | a3b7d8e8ab2cfbfdddad414809617ad4a0639555 (patch) | |
| tree | 1b00503045b21a944438631093094c8c2f713a57 /drivers/net | |
| parent | 253d398c00df00d4d13d5f0bf5140729472a94be (diff) | |
fec: tune RSEM and RSFL values for tapeout 1.0
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/fec.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/net/fec.c b/drivers/net/fec.c index 780614710b59..dd28d2cb21b5 100644 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -159,7 +159,9 @@ MODULE_PARM_DESC(macaddr, "FEC Ethernet MAC address"); /* Pause frame feild and FIFO threshold */ #define FEC_ENET_FCE (1 << 5) #define FEC_ENET_RSEM_V 0x84 +#define FEC_ENET_RSEM_V_TO1 0x10 #define FEC_ENET_RSFL_V 16 +#define FEC_ENET_RSFL_V_TO1 0x20 #define FEC_ENET_RAEM_V 0x8 #define FEC_ENET_RAFL_V 0x8 #define FEC_ENET_OPD_V 0xFFF0 @@ -1721,11 +1723,18 @@ fec_restart(struct net_device *dev, int duplex) * The issue has been fixed on Rigel TO1.1 and Arik TO1.2 */ if (cpu_is_mx6q() || (cpu_is_mx6dl() - && (mx6dl_revision() >= IMX_CHIP_REVISION_1_1))) - rsem_val = FEC_ENET_RSEM_V; + && (mx6dl_revision() >= IMX_CHIP_REVISION_1_1))) { + if (cpu_is_mx6q() && (mx6q_revision() < IMX_CHIP_REVISION_1_1)) { + rsem_val = FEC_ENET_RSEM_V_TO1; + } else + rsem_val = FEC_ENET_RSEM_V; + } writel(rsem_val, fep->hwp + FEC_R_FIFO_RSEM); - writel(FEC_ENET_RSFL_V, fep->hwp + FEC_R_FIFO_RSFL); + if (cpu_is_mx6q() && (mx6q_revision() < IMX_CHIP_REVISION_1_1)) + writel(FEC_ENET_RSFL_V_TO1, fep->hwp + FEC_R_FIFO_RSFL); + else + writel(FEC_ENET_RSFL_V, fep->hwp + FEC_R_FIFO_RSFL); writel(FEC_ENET_RAEM_V, fep->hwp + FEC_R_FIFO_RAEM); writel(FEC_ENET_RAFL_V, fep->hwp + FEC_R_FIFO_RAFL); |