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

@@ -39,8 +39,6 @@ extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
  ************************************************************************/
 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 @@ int board_early_init_f(void)
 	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 board_early_init_f(void)
 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

@@ -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 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 	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 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 	__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 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 	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);