summaryrefslogtreecommitdiffstats
path: root/arch/ppc/8xx_io/enet.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ppc/8xx_io/enet.c')
-rw-r--r--arch/ppc/8xx_io/enet.c52
1 files changed, 44 insertions, 8 deletions
diff --git a/arch/ppc/8xx_io/enet.c b/arch/ppc/8xx_io/enet.c
index 4ea7158..ece6a9f 100644
--- a/arch/ppc/8xx_io/enet.c
+++ b/arch/ppc/8xx_io/enet.c
@@ -714,16 +714,24 @@ static int __init scc_enet_init(void)
immap->im_ioport.iop_pcdat &= ~PC_ENET_LBK; /* Disable Loopback */
#endif /* PC_ENET_LBK */
- /* Configure port C pins to enable CLSN and RENA.
+#ifdef PE_ENET_TCLK
+ /* Configure port E for TCLK and RCLK.
*/
- immap->im_ioport.iop_pcpar &= ~(PC_ENET_CLSN | PC_ENET_RENA);
- immap->im_ioport.iop_pcdir &= ~(PC_ENET_CLSN | PC_ENET_RENA);
- immap->im_ioport.iop_pcso |= (PC_ENET_CLSN | PC_ENET_RENA);
-
+ cp->cp_pepar |= (PE_ENET_TCLK | PE_ENET_RCLK);
+ cp->cp_pedir &= ~(PE_ENET_TCLK | PE_ENET_RCLK);
+ cp->cp_peso &= ~(PE_ENET_TCLK | PE_ENET_RCLK);
+#else
/* Configure port A for TCLK and RCLK.
*/
immap->im_ioport.iop_papar |= (PA_ENET_TCLK | PA_ENET_RCLK);
immap->im_ioport.iop_padir &= ~(PA_ENET_TCLK | PA_ENET_RCLK);
+#endif
+
+ /* Configure port C pins to enable CLSN and RENA.
+ */
+ immap->im_ioport.iop_pcpar &= ~(PC_ENET_CLSN | PC_ENET_RENA);
+ immap->im_ioport.iop_pcdir &= ~(PC_ENET_CLSN | PC_ENET_RENA);
+ immap->im_ioport.iop_pcso |= (PC_ENET_CLSN | PC_ENET_RENA);
/* Configure Serial Interface clock routing.
* First, clear all SCC bits to zero, then set the ones we want.
@@ -896,14 +904,18 @@ static int __init scc_enet_init(void)
/* It is now OK to enable the Ethernet transmitter.
* Unfortunately, there are board implementation differences here.
*/
-#if (!defined (PB_ENET_TENA) && defined (PC_ENET_TENA))
+#if (!defined (PB_ENET_TENA) && defined (PC_ENET_TENA) && !defined (PE_ENET_TENA))
immap->im_ioport.iop_pcpar |= PC_ENET_TENA;
immap->im_ioport.iop_pcdir &= ~PC_ENET_TENA;
-#elif ( defined (PB_ENET_TENA) && !defined (PC_ENET_TENA))
+#elif ( defined (PB_ENET_TENA) && !defined (PC_ENET_TENA) && !defined (PE_ENET_TENA))
cp->cp_pbpar |= PB_ENET_TENA;
cp->cp_pbdir |= PB_ENET_TENA;
+#elif ( !defined (PB_ENET_TENA) && !defined (PC_ENET_TENA) && defined (PE_ENET_TENA))
+ cp->cp_pepar |= PE_ENET_TENA;
+ cp->cp_pedir &= ~PE_ENET_TENA;
+ cp->cp_peso |= PE_ENET_TENA;
#else
-#error Configuration Error: define exactly ONE of PB_ENET_TENA, PC_ENET_TENA
+#error Configuration Error: define exactly ONE of PB_ENET_TENA, PC_ENET_TENA, PE_ENET_TENA
#endif
#if defined(CONFIG_RPXLITE) || defined(CONFIG_RPXCLASSIC)
@@ -936,6 +948,29 @@ static int __init scc_enet_init(void)
*((volatile uint *)BCSR1) &= ~BCSR1_ETHEN;
#endif
+#ifdef CONFIG_MPC885ADS
+
+ /* Deassert PHY reset and enable the PHY.
+ */
+ {
+ volatile uint __iomem *bcsr = ioremap(BCSR_ADDR, BCSR_SIZE);
+ uint tmp;
+
+ tmp = in_be32(bcsr + 1 /* BCSR1 */);
+ tmp |= BCSR1_ETHEN;
+ out_be32(bcsr + 1, tmp);
+ tmp = in_be32(bcsr + 4 /* BCSR4 */);
+ tmp |= BCSR4_ETH10_RST;
+ out_be32(bcsr + 4, tmp);
+ iounmap(bcsr);
+ }
+
+ /* On MPC885ADS SCC ethernet PHY defaults to the full duplex mode
+ * upon reset. SCC is set to half duplex by default. So this
+ * inconsistency should be better fixed by the software.
+ */
+#endif
+
dev->base_addr = (unsigned long)ep;
#if 0
dev->name = "CPM_ENET";
@@ -969,3 +1004,4 @@ static int __init scc_enet_init(void)
}
module_init(scc_enet_init);
+
OpenPOWER on IntegriCloud