commit 2db64784061bfc34f4ba70ef1d2fbe7133b55670
author Grzegorz Bernacki <gjb@semihalf.com> Mon Oct 01 09:51:50 2007 +0200
committer Stefan Roese <sr@denx.de> Tue Oct 02 11:30:37 2007 +0200
tree 52999ea19bebedc4e20b02c431fe759e391a0873
parent 636538c520ed118e5e50f592250232a5f943fb84

Program EPLD to force full duplex mode for PHY.

EPLD forces modes of PHY operation. By default full duplex is turned off.
This fix turns it on.

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>

board/amcc/luan/luan.c

diff --git a/board/amcc/luan/luan.c b/board/amcc/luan/luan.c
index 7b16f8a..1bd7efa 100644
--- a/board/amcc/luan/luan.c
+++ b/board/amcc/luan/luan.c
@@ -39,8 +39,6 @@
  ************************************************************************/
 int board_early_init_f(void)
 {
-	volatile epld_t *x = (epld_t *) CFG_EPLD_BASE;
-
 	mtebc( pb0ap,  0x03800000 );	/* set chip selects */
 	mtebc( pb0cr,  0xffc58000 );	/* ebc0_b0cr, 4MB at 0xffc00000 CS0 */
 	mtebc( pb1ap,  0x03800000 );
@@ -66,8 +64,6 @@
 	mtdcr( uic0sr, 0x00000000 );	/* clear all interrupts */
 	mtdcr( uic0sr, 0xffffffff );
 
-	x->ethuart &= ~EPLD2_RESET_ETH_N; /* put Ethernet+PHY in reset */
-
 	return  0;
 }
 
@@ -79,7 +75,18 @@
 int misc_init_r(void)
 {
 	volatile epld_t *x = (epld_t *) CFG_EPLD_BASE;
-	x->ethuart |= EPLD2_RESET_ETH_N; /* take Ethernet+PHY out of reset */
+
+	/* set modes of operation */
+	x->ethuart |= EPLD2_ETH_MODE_10 | EPLD2_ETH_MODE_100 |
+		EPLD2_ETH_MODE_1000 | EPLD2_ETH_DUPLEX_MODE;
+	/* clear ETHERNET_AUTO_NEGO bit to turn on autonegotiation */
+	x->ethuart &= ~EPLD2_ETH_AUTO_NEGO;
+	
+	/* put Ethernet+PHY in reset */
+	x->ethuart &= ~EPLD2_RESET_ETH_N;
+	udelay(10000);
+	/* take Ethernet+PHY out of reset */
+	x->ethuart |= EPLD2_RESET_ETH_N;
 
 	return  0;
 }

cpu/ppc4xx/4xx_enet.c

diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c
index cc8e734..4e9a05e 100644
--- a/cpu/ppc4xx/4xx_enet.c
+++ b/cpu/ppc4xx/4xx_enet.c
@@ -138,7 +138,8 @@
 #define BI_PHYMODE_MII   7
 #endif
 
-#if defined(CONFIG_440SPE) || defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
+#if defined(CONFIG_440SPE) || defined(CONFIG_440EPX) || \
+	defined(CONFIG_440GRX) || defined(CONFIG_440SP)
 #define SDR0_MFR_ETH_CLK_SEL_V(n)	((0x01<<27) / (n+1))
 #endif
 
@@ -408,7 +409,8 @@
 	int ethgroup = -1;
 #endif
 #endif
-#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || defined(CONFIG_440SPE)
+#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+	defined(CONFIG_440SPE) || defined(CONFIG_440SP)
 	unsigned long mfr;
 #endif
 
@@ -500,7 +502,8 @@
 	__asm__ volatile ("eieio");
 
 	/* reset emac so we have access to the phy */
-#if defined(CONFIG_440SPE) || defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
+#if defined(CONFIG_440SPE) || defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+	defined(CONFIG_440SP)
 	/* provide clocks for EMAC internal loopback  */
 	mfsdr (sdr_mfr, mfr);
 	mfr |= SDR0_MFR_ETH_CLK_SEL_V(devnum);
@@ -518,7 +521,8 @@
 	if (failsafe <= 0)
 		printf("\nProblem resetting EMAC!\n");
 
-#if defined(CONFIG_440SPE) || defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
+#if defined(CONFIG_440SPE) || defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+	defined(CONFIG_440SP)
 	/* remove clocks for EMAC internal loopback  */
 	mfsdr (sdr_mfr, mfr);
 	mfr &= ~SDR0_MFR_ETH_CLK_SEL_V(devnum);