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| author | Alan Carvalho de Assis <alan.assis@freescale.com> | 2009-03-05 09:23:43 -0300 |
|---|---|---|
| committer | Fred Fan <r01011@freescale.com> | 2009-09-10 14:50:22 +0800 |
| commit | 703ba8b936a75d8d66eb8cef6fe0c17b7ac6af27 (patch) | |
| tree | 6965fcaea69bb0c278859312d98314b3580f4d04 /drivers/net/mxc_fec.c | |
| parent | a7a74cdb675607022692b15459dbfeb2cb1b5903 (diff) | |
| download | u-boot-imx-703ba8b936a75d8d66eb8cef6fe0c17b7ac6af27.zip u-boot-imx-703ba8b936a75d8d66eb8cef6fe0c17b7ac6af27.tar.gz u-boot-imx-703ba8b936a75d8d66eb8cef6fe0c17b7ac6af27.tar.bz2 | |
ENGR00108673 Add i.MX25 core to U-Boot
This patch add support on U-Boot to i.MX25 processor.
Signed-off-by: Alan Carvalho de Assis <alan.assis@freescale.com>
Diffstat (limited to 'drivers/net/mxc_fec.c')
| -rw-r--r-- | drivers/net/mxc_fec.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/net/mxc_fec.c b/drivers/net/mxc_fec.c index 676f89f..218c432 100644 --- a/drivers/net/mxc_fec.c +++ b/drivers/net/mxc_fec.c @@ -88,6 +88,44 @@ DECLARE_GLOBAL_DATA_PTR; +#ifdef CONFIG_MX25 +/* + * * i.MX25 allows RMII mode to be configured via a gasket + * */ +#define FEC_MIIGSK_CFGR_FRCONT (1 << 6) +#define FEC_MIIGSK_CFGR_LBMODE (1 << 4) +#define FEC_MIIGSK_CFGR_EMODE (1 << 3) +#define FEC_MIIGSK_CFGR_IF_MODE_MASK (3 << 0) +#define FEC_MIIGSK_CFGR_IF_MODE_MII (0 << 0) +#define FEC_MIIGSK_CFGR_IF_MODE_RMII (1 << 0) + +#define FEC_MIIGSK_ENR_READY (1 << 2) +#define FEC_MIIGSK_ENR_EN (1 << 1) + +static inline void fec_localhw_setup(volatile fec_t *fecp) +{ + /* + * Set up the MII gasket for RMII mode + */ + printf("FEC: enable RMII gasket\n"); + + /* disable the gasket and wait */ + fecp->fec_miigsk_enr = 0; + while (fecp->fec_miigsk_enr & FEC_MIIGSK_ENR_READY) + udelay(1); + + /* configure the gasket for RMII, 50 MHz, no loopback, no echo */ + fecp->fec_miigsk_cfgr = FEC_MIIGSK_CFGR_IF_MODE_RMII; + + /* re-enable the gasket */ + fecp->fec_miigsk_enr = FEC_MIIGSK_ENR_EN; +} +#else +static inline void fec_localhw_setup(struct fec_t *fecp) +{ +} +#endif + #if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI) struct fec_info_s fec_info[] = { @@ -574,6 +612,8 @@ int fec_init(struct eth_device *dev, bd_t *bd) fec_reset(dev); + fec_localhw_setup(fecp); + #if defined (CONFIG_CMD_MII) || defined (CONFIG_MII) || \ defined (CONFIG_DISCOVER_PHY) |