diff options
| author | Marek Vasut <marex@denx.de> | 2012-05-01 11:09:41 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-05-15 08:31:35 +0200 |
| commit | a5990b267449882733f3bd3d13493e0a78bfdc75 (patch) | |
| tree | 17c18a7111729f4354385801766126ecb4ea3204 | |
| parent | c4559daa9158367878ddb3e115d60d41e0322b1f (diff) | |
| download | u-boot-imx-a5990b267449882733f3bd3d13493e0a78bfdc75.zip u-boot-imx-a5990b267449882733f3bd3d13493e0a78bfdc75.tar.gz u-boot-imx-a5990b267449882733f3bd3d13493e0a78bfdc75.tar.bz2 | |
FEC: Abstract out register setup
Abstract out common register setup. This also configured r_cntrl
to correct value at registration time.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
| -rw-r--r-- | drivers/net/fec_mxc.c | 84 |
1 files changed, 38 insertions, 46 deletions
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index 5c3b90f..156fa8f 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -400,6 +400,42 @@ static void fec_eth_phy_config(struct eth_device *dev) #endif } +/* + * Do initial configuration of the FEC registers + */ +static void fec_reg_setup(struct fec_priv *fec) +{ + uint32_t rcntrl; + + /* + * Set interrupt mask register + */ + writel(0x00000000, &fec->eth->imask); + + /* + * Clear FEC-Lite interrupt event register(IEVENT) + */ + writel(0xffffffff, &fec->eth->ievent); + + + /* + * Set FEC-Lite receive control register(R_CNTRL): + */ + + /* Start with frame length = 1518, common for all modes. */ + rcntrl = PKTSIZE << FEC_RCNTRL_MAX_FL_SHIFT; + if (fec->xcv_type == SEVENWIRE) + rcntrl |= FEC_RCNTRL_FCE; + else if (fec->xcv_type == RGMII) + rcntrl |= FEC_RCNTRL_RGMII; + else if (fec->xcv_type == RMII) + rcntrl |= FEC_RCNTRL_RMII; + else /* MII mode */ + rcntrl |= FEC_RCNTRL_FCE | FEC_RCNTRL_MII_MODE; + + writel(rcntrl, &fec->eth->r_cntrl); +} + /** * Start the FEC engine * @param[in] dev Our device to handle @@ -514,7 +550,6 @@ static int fec_init(struct eth_device *dev, bd_t* bd) { struct fec_priv *fec = (struct fec_priv *)dev->priv; uint32_t mib_ptr = (uint32_t)&fec->eth->rmon_t_drop; - uint32_t rcntrl; uint32_t size; int i, ret; @@ -562,33 +597,7 @@ static int fec_init(struct eth_device *dev, bd_t* bd) (unsigned)fec->rbd_base + size); } - /* - * Set interrupt mask register - */ - writel(0x00000000, &fec->eth->imask); - - /* - * Clear FEC-Lite interrupt event register(IEVENT) - */ - writel(0xffffffff, &fec->eth->ievent); - - - /* - * Set FEC-Lite receive control register(R_CNTRL): - */ - - /* Start with frame length = 1518, common for all modes. */ - rcntrl = PKTSIZE << FEC_RCNTRL_MAX_FL_SHIFT; - if (fec->xcv_type == SEVENWIRE) - rcntrl |= FEC_RCNTRL_FCE; - else if (fec->xcv_type == RGMII) - rcntrl |= FEC_RCNTRL_RGMII; - else if (fec->xcv_type == RMII) - rcntrl |= FEC_RCNTRL_RMII; - else /* MII mode */ - rcntrl |= FEC_RCNTRL_FCE | FEC_RCNTRL_MII_MODE; - - writel(rcntrl, &fec->eth->r_cntrl); + fec_reg_setup(fec); if (fec->xcv_type == MII10 || fec->xcv_type == MII100) fec_mii_setspeed(fec); @@ -935,24 +944,7 @@ static int fec_probe(bd_t *bd, int dev_id, int phy_id, uint32_t base_addr) udelay(10); } - /* - * Set interrupt mask register - */ - writel(0x00000000, &fec->eth->imask); - - /* - * Clear FEC-Lite interrupt event register(IEVENT) - */ - writel(0xffffffff, &fec->eth->ievent); - - /* - * Set FEC-Lite receive control register(R_CNTRL): - */ - /* - * Frame length=1518; MII mode; - */ - writel((PKTSIZE << FEC_RCNTRL_MAX_FL_SHIFT) | FEC_RCNTRL_FCE | - FEC_RCNTRL_MII_MODE, &fec->eth->r_cntrl); + fec_reg_setup(fec); fec_mii_setspeed(fec); if (dev_id == -1) { |