diff options
| author | John Rigby <jcrigby@gmail.com> | 2010-01-25 23:12:57 -0700 |
|---|---|---|
| committer | Tom Rix <Tom.Rix@windriver.com> | 2010-03-07 12:36:36 -0600 |
| commit | 740d6ae5b982496fcea0666b2207cb34cc0e6015 (patch) | |
| tree | bf4236cdc045593b1fb32679e45df497fa053410 /drivers/net/fec_mxc.c | |
| parent | cb17b92de03416cf4d5db5bd27ef4ae17f95e707 (diff) | |
| download | blackbird-obmc-uboot-740d6ae5b982496fcea0666b2207cb34cc0e6015.tar.gz blackbird-obmc-uboot-740d6ae5b982496fcea0666b2207cb34cc0e6015.zip | |
fec_mxc: add MX25 support
Use RMII for MX25
Add code to init gasket that enables RMII
Signed-off-by: John Rigby <jcrigby@gmail.com>
CC: Ben Warren <biggerbadderben@gmail.com>
Diffstat (limited to 'drivers/net/fec_mxc.c')
| -rw-r--r-- | drivers/net/fec_mxc.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index e027894cff..5af9cdba2a 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -367,6 +367,34 @@ static int fec_open(struct eth_device *edev) */ writel(readl(&fec->eth->ecntrl) | FEC_ECNTRL_ETHER_EN, &fec->eth->ecntrl); +#ifdef CONFIG_MX25 + udelay(100); + /* + * setup the MII gasket for RMII mode + */ + + /* disable the gasket */ + writew(0, &fec->eth->miigsk_enr); + + /* wait for the gasket to be disabled */ + while (readw(&fec->eth->miigsk_enr) & MIIGSK_ENR_READY) + udelay(2); + + /* configure gasket for RMII, 50 MHz, no loopback, and no echo */ + writew(MIIGSK_CFGR_IF_MODE_RMII, &fec->eth->miigsk_cfgr); + + /* re-enable the gasket */ + writew(MIIGSK_ENR_EN, &fec->eth->miigsk_enr); + + /* wait until MII gasket is ready */ + int max_loops = 10; + while ((readw(&fec->eth->miigsk_enr) & MIIGSK_ENR_READY) == 0) { + if (--max_loops <= 0) { + printf("WAIT for MII Gasket ready timed out\n"); + break; + } + } +#endif miiphy_wait_aneg(edev); miiphy_speed(edev->name, CONFIG_FEC_MXC_PHYADDR); @@ -513,7 +541,8 @@ static void fec_halt(struct eth_device *dev) * Disable the Ethernet Controller * Note: this will also reset the BD index counter! */ - writel(readl(&fec->eth->ecntrl) & ~FEC_ECNTRL_ETHER_EN, &fec->eth->ecntrl); + writel(readl(&fec->eth->ecntrl) & ~FEC_ECNTRL_ETHER_EN, + &fec->eth->ecntrl); fec->rbd_index = 0; fec->tbd_index = 0; debug("eth_halt: done\n"); |
