diff options
| author | Grant Erickson <gerickson@nuovations.com> | 2008-07-08 08:35:00 -0700 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2008-07-11 13:18:13 +0200 |
| commit | 1740c1bf40e3c6d03ac16c29943fdd9fc1e87038 (patch) | |
| tree | b5a0baae4cc93b5d36e34dfaf42989eee3a704b6 /cpu/ppc4xx/4xx_enet.c | |
| parent | 2e2050842e731c823ce8d41fb0c15579eb70ced9 (diff) | |
| download | u-boot-imx-1740c1bf40e3c6d03ac16c29943fdd9fc1e87038.zip u-boot-imx-1740c1bf40e3c6d03ac16c29943fdd9fc1e87038.tar.gz u-boot-imx-1740c1bf40e3c6d03ac16c29943fdd9fc1e87038.tar.bz2 | |
ppc4xx: Add MII mode support to the EMAC RGMII Bridge
This patch adds support for placing the RGMII bridge on the
PPC405EX(r) into MII/GMII mode and allows a board-specific
configuration to specify the bridge mode at compile-time.
Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'cpu/ppc4xx/4xx_enet.c')
| -rw-r--r-- | cpu/ppc4xx/4xx_enet.c | 80 |
1 files changed, 69 insertions, 11 deletions
diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c index 4e863dc..26d74d2 100644 --- a/cpu/ppc4xx/4xx_enet.c +++ b/cpu/ppc4xx/4xx_enet.c @@ -465,30 +465,88 @@ int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis) #if defined(CONFIG_405EX) int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis) { - u32 gmiifer = 0; + u32 rgmiifer = 0; /* - * Right now only 2*RGMII is supported. Please extend when needed. - * sr - 2007-09-19 + * The 405EX(r)'s RGMII bridge can operate in one of several + * modes, only one of which (2 x RGMII) allows the + * simultaneous use of both EMACs on the 405EX. */ - switch (1) { - case 1: + + switch (CONFIG_EMAC_PHY_MODE) { + + case EMAC_PHY_MODE_NONE: + /* No ports */ + rgmiifer |= RGMII_FER_DIS << 0; + rgmiifer |= RGMII_FER_DIS << 4; + out_be32((void *)RGMII_FER, rgmiifer); + bis->bi_phymode[0] = BI_PHYMODE_NONE; + bis->bi_phymode[1] = BI_PHYMODE_NONE; + break; + case EMAC_PHY_MODE_NONE_RGMII: + /* 1 x RGMII port on channel 0 */ + rgmiifer |= RGMII_FER_RGMII << 0; + rgmiifer |= RGMII_FER_DIS << 4; + out_be32((void *)RGMII_FER, rgmiifer); + bis->bi_phymode[0] = BI_PHYMODE_RGMII; + bis->bi_phymode[1] = BI_PHYMODE_NONE; + break; + case EMAC_PHY_MODE_RGMII_NONE: + /* 1 x RGMII port on channel 1 */ + rgmiifer |= RGMII_FER_DIS << 0; + rgmiifer |= RGMII_FER_RGMII << 4; + out_be32((void *)RGMII_FER, rgmiifer); + bis->bi_phymode[0] = BI_PHYMODE_NONE; + bis->bi_phymode[1] = BI_PHYMODE_RGMII; + break; + case EMAC_PHY_MODE_RGMII_RGMII: /* 2 x RGMII ports */ - out_be32((void *)RGMII_FER, 0x00000055); + rgmiifer |= RGMII_FER_RGMII << 0; + rgmiifer |= RGMII_FER_RGMII << 4; + out_be32((void *)RGMII_FER, rgmiifer); bis->bi_phymode[0] = BI_PHYMODE_RGMII; bis->bi_phymode[1] = BI_PHYMODE_RGMII; break; - case 2: - /* 2 x SMII ports */ + case EMAC_PHY_MODE_NONE_GMII: + /* 1 x GMII port on channel 0 */ + rgmiifer |= RGMII_FER_GMII << 0; + rgmiifer |= RGMII_FER_DIS << 4; + out_be32((void *)RGMII_FER, rgmiifer); + bis->bi_phymode[0] = BI_PHYMODE_GMII; + bis->bi_phymode[1] = BI_PHYMODE_NONE; + break; + case EMAC_PHY_MODE_NONE_MII: + /* 1 x MII port on channel 0 */ + rgmiifer |= RGMII_FER_MII << 0; + rgmiifer |= RGMII_FER_DIS << 4; + out_be32((void *)RGMII_FER, rgmiifer); + bis->bi_phymode[0] = BI_PHYMODE_MII; + bis->bi_phymode[1] = BI_PHYMODE_NONE; + break; + case EMAC_PHY_MODE_GMII_NONE: + /* 1 x GMII port on channel 1 */ + rgmiifer |= RGMII_FER_DIS << 0; + rgmiifer |= RGMII_FER_GMII << 4; + out_be32((void *)RGMII_FER, rgmiifer); + bis->bi_phymode[0] = BI_PHYMODE_NONE; + bis->bi_phymode[1] = BI_PHYMODE_GMII; + break; + case EMAC_PHY_MODE_MII_NONE: + /* 1 x MII port on channel 1 */ + rgmiifer |= RGMII_FER_DIS << 0; + rgmiifer |= RGMII_FER_MII << 4; + out_be32((void *)RGMII_FER, rgmiifer); + bis->bi_phymode[0] = BI_PHYMODE_NONE; + bis->bi_phymode[1] = BI_PHYMODE_MII; break; default: break; } /* Ensure we setup mdio for this devnum and ONLY this devnum */ - gmiifer = in_be32((void *)RGMII_FER); - gmiifer |= (1 << (19-devnum)); - out_be32((void *)RGMII_FER, gmiifer); + rgmiifer = in_be32((void *)RGMII_FER); + rgmiifer |= (1 << (19-devnum)); + out_be32((void *)RGMII_FER, rgmiifer); return ((int)0x0); } |