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| author | Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> | 2008-08-28 13:40:44 +0900 |
|---|---|---|
| committer | Ben Warren <biggerbadderben@gmail.com> | 2008-09-02 21:18:19 -0700 |
| commit | 33314470ab32a3f5412bb61b5f3d6c216c88bf9b (patch) | |
| tree | 8f82839762993ce35c28079f8908d5f385c18d4d | |
| parent | 10efa024b8ffd9e6aaca63da8bddfdffdc672274 (diff) | |
| download | u-boot-imx-33314470ab32a3f5412bb61b5f3d6c216c88bf9b.zip u-boot-imx-33314470ab32a3f5412bb61b5f3d6c216c88bf9b.tar.gz u-boot-imx-33314470ab32a3f5412bb61b5f3d6c216c88bf9b.tar.bz2 | |
net: smc911x: Add pkt_data_pull and pkt_data_push function
The RSK7203 board has the SMSC9118 wired up 'incorrectly'.
Byte-swapping is necessary, and so poor performance is inevitable.
This problem cannot evade by the swap function of CHIP, this can
evade by software Byte-swapping.
And this has problem by FIFO access only. pkt_data_pull/pkt_data_push
functions necessary to solve this problem.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
| -rw-r--r-- | drivers/net/smc911x.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c index 0fff820..648c94c 100644 --- a/drivers/net/smc911x.c +++ b/drivers/net/smc911x.c @@ -57,6 +57,11 @@ static inline void reg_write(u32 addr, u32 val) #error "SMC911X: undefined bus width" #endif /* CONFIG_DRIVER_SMC911X_16_BIT */ +u32 pkt_data_pull(u32 addr) \ + __attribute__ ((weak, alias ("reg_read"))); +void pkt_data_push(u32 addr, u32 val) \ + __attribute__ ((weak, alias ("reg_write"))); + #define mdelay(n) udelay((n)*1000) /* Below are the register offsets and bit definitions @@ -641,7 +646,7 @@ int eth_send(volatile void *packet, int length) tmplen = (length + 3) / 4; while (tmplen--) - reg_write(TX_DATA_FIFO, *data++); + pkt_data_push(TX_DATA_FIFO, *data++); /* wait for transmission */ while (!((reg_read(TX_FIFO_INF) & TX_FIFO_INF_TSUSED) >> 16)); @@ -684,7 +689,7 @@ int eth_rx(void) tmplen = (pktlen + 2+ 3) / 4; while (tmplen--) - *data++ = reg_read(RX_DATA_FIFO); + *data++ = pkt_data_pull(RX_DATA_FIFO); if (status & RX_STS_ES) printf(DRIVERNAME |