ppc4xx: setup 440EPx/GRx ZMII/RGMII bridge depending on PFC register content.

[oweals/u-boot.git] / cpu / ppc4xx / 4xx_enet.c

diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c
index cf56581d845329c871928cc48240fa26e1dc4f60..be4e82405eb2b264d39446f8cc5ef591a01302e0 100644 (file)
--- a/cpu/ppc4xx/4xx_enet.c
+++ b/cpu/ppc4xx/4xx_enet.c
@@ -339,29 +339,41 @@ int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
 int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis)
 {
        unsigned long zmiifer=0x0;
+       unsigned long pfc1;
 
-       /*
-        * Right now only 2*RGMII is supported. Please extend when needed.
-        * sr - 2006-08-29
-        */
-       switch (1) {
-       case 0:
+       mfsdr(sdr_pfc1, pfc1);
+       pfc1 &= SDR0_PFC1_SELECT_MASK;
+
+       switch (pfc1) { 
+       case SDR0_PFC1_SELECT_CONFIG_2:
                /* 1 x GMII port */
                out32 (ZMII_FER, 0x00);
                out32 (RGMII_FER, 0x00000037);
                bis->bi_phymode[0] = BI_PHYMODE_GMII;
                bis->bi_phymode[1] = BI_PHYMODE_NONE;
                break;
-       case 1:
+       case SDR0_PFC1_SELECT_CONFIG_4:
                /* 2 x RGMII ports */
                out32 (ZMII_FER, 0x00);
                out32 (RGMII_FER, 0x00000055);
                bis->bi_phymode[0] = BI_PHYMODE_RGMII;
                bis->bi_phymode[1] = BI_PHYMODE_RGMII;
                break;
-       case 2:
+       case SDR0_PFC1_SELECT_CONFIG_6:
                /* 2 x SMII ports */
-
+               out32 (ZMII_FER, 
+                      ((ZMII_FER_SMII) << ZMII_FER_V(0)) |
+                      ((ZMII_FER_SMII) << ZMII_FER_V(1)));
+               out32 (RGMII_FER, 0x00000000);
+               bis->bi_phymode[0] = BI_PHYMODE_SMII;
+               bis->bi_phymode[1] = BI_PHYMODE_SMII;
+               break;
+       case SDR0_PFC1_SELECT_CONFIG_1_2:
+               /* only 1 x MII supported */
+               out32 (ZMII_FER, (ZMII_FER_MII) << ZMII_FER_V(0));
+               out32 (RGMII_FER, 0x00000000);
+               bis->bi_phymode[0] = BI_PHYMODE_MII;
+               bis->bi_phymode[1] = BI_PHYMODE_NONE;
                break;
        default:
                break;