Add support for AMCC Bamboo PPC440EP eval board

Patch by Stefan Roese, 04 Aug 2005

5 files changed, 68 insertions, 50 deletions

diff --git a/cpu/ppc4xx/405gp_enet.c b/cpu/ppc4xx/405gp_enet.c
index 9c17e31..b60d122 100644
--- a/cpu/ppc4xx/405gp_enet.c
+++ b/cpu/ppc4xx/405gp_enet.c
@@ -166,7 +166,6 @@ static void ppc_4xx_eth_halt (struct eth_device *dev)
 		failsafe--;
 		if (failsafe == 0)
 			break;
-
 	}
 
 	/* EMAC RESET */
@@ -223,18 +222,19 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 #endif
 
 	/* MAL RESET */
-	 mtdcr (malmcr, MAL_CR_MMSR);
-	 /* wait for reset */
-	 while (mfdcr (malmcr) & MAL_CR_MMSR) {
-	 };
+	mtdcr (malmcr, MAL_CR_MMSR);
+	/* wait for reset */
+	while (mfdcr (malmcr) & MAL_CR_MMSR) {
+	};
+
 #if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
 	out32 (ZMII_FER, 0);
 	udelay(100);
 	/* set RII mode */
 	out32 (ZMII_FER, ZMII_RMII | ZMII_MDI0);
 #elif defined(CONFIG_440)
-	 /* set RMII mode */
-	 out32 (ZMII_FER, ZMII_RMII | ZMII_MDI0);
+	/* set RMII mode */
+	out32 (ZMII_FER, ZMII_RMII | ZMII_MDI0);
 #endif /* CONFIG_440 */
 
 	/* MAL Channel RESET */
@@ -324,14 +324,11 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 			(int) speed, (duplex == HALF) ? "HALF" : "FULL");
 	}
 
-#if defined(CONFIG_440)
-	/* Errata 1.12: MAL_1 -- Disable MAL bursting */
-	if( get_pvr() == PVR_440GP_RB)
-		mtdcr (malmcr, MAL_CR_OPBBL | MAL_CR_LEA | MAL_CR_PLBLT_DEFAULT);
-	else
-#else
 	mtdcr (malmcr, MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA | MAL_CR_PLBLT_DEFAULT);
-#endif
+	/* Errata 1.12: MAL_1 -- Disable MAL bursting */
+	if (get_pvr() == PVR_440GP_RB) {
+		mtdcr (malmcr, mfdcr(malmcr) & ~MAL_CR_PLBB);
+	}
 
 	/* Free "old" buffers */
 	if (hw_p->alloc_tx_buf)
@@ -418,6 +415,7 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 	reg |= dev->enetaddr[5];
 
 	out32 (EMAC_IAL + hw_p->hw_addr, reg);
+
 	switch (devnum) {
 #if defined(CONFIG_NET_MULTI)
 	case 1:
@@ -498,7 +496,6 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
 	out32 (EMAC_RX_HI_LO_WMARK + hw_p->hw_addr, 0x0f002000);
 #endif
 
-
 	/* Frame gap set */
 	out32 (EMAC_I_FRAME_GAP_REG + hw_p->hw_addr, 0x00000008);
 
diff --git a/cpu/ppc4xx/440gx_enet.c b/cpu/ppc4xx/440gx_enet.c
index 24e6ef3..f4004fb 100644
--- a/cpu/ppc4xx/440gx_enet.c
+++ b/cpu/ppc4xx/440gx_enet.c
@@ -391,6 +391,7 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
 		failsafe--;
 	}
 
+#if defined(CONFIG_440_GX)
 	/* Whack the M1 register */
 	mode_reg = 0x0;
 	mode_reg &= ~0x00000038;
@@ -405,7 +406,7 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
 		mode_reg |= EMAC_M1_OBCI_GT100;
 
 	out32 (EMAC_M1 + hw_p->hw_addr, mode_reg);
-
+#endif /*  defined(CONFIG_440_GX) */
 
 	/* wait for PHY to complete auto negotiation */
 	reg_short = 0;
@@ -432,6 +433,7 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
 
 	bis->bi_phynum[devnum] = reg;
 
+#ifndef CONFIG_NO_PHY_RESET
 	/*
 	 * Reset the phy, only if its the first time through
 	 * otherwise, just check the speeds & feeds
@@ -441,35 +443,36 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
 
 #if defined(CONFIG_440_GX)
 #if defined(CONFIG_CIS8201_PHY)
-	/*
-	 * Cicada 8201 PHY needs to have an extended register whacked
-	 * for RGMII mode.
-	 */
-	if ( ((devnum == 2) || (devnum ==3)) && (4 == ethgroup) ) {
-		miiphy_write (reg, 23, 0x1200);
 		/*
-		 * Vitesse VSC8201/Cicada CIS8201 errata:
-		 * Interoperability problem with Intel 82547EI phys
-		 * This work around (provided by Vitesse) changes
-		 * the default timer convergence from 8ms to 12ms
+		 * Cicada 8201 PHY needs to have an extended register whacked
+		 * for RGMII mode.
 		 */
-		miiphy_write (reg, 0x1f, 0x2a30);
-		miiphy_write (reg, 0x08, 0x0200);
-		miiphy_write (reg, 0x1f, 0x52b5);
-		miiphy_write (reg, 0x02, 0x0004);
-		miiphy_write (reg, 0x01, 0x0671);
-		miiphy_write (reg, 0x00, 0x8fae);
-		miiphy_write (reg, 0x1f, 0x2a30);
-		miiphy_write (reg, 0x08, 0x0000);
-		miiphy_write (reg, 0x1f, 0x0000);
-		/* end Vitesse/Cicada errata */
-	}
+		if ( ((devnum == 2) || (devnum ==3)) && (4 == ethgroup) ) {
+			miiphy_write (reg, 23, 0x1200);
+			/*
+			 * Vitesse VSC8201/Cicada CIS8201 errata:
+			 * Interoperability problem with Intel 82547EI phys
+			 * This work around (provided by Vitesse) changes
+			 * the default timer convergence from 8ms to 12ms
+			 */
+			miiphy_write (reg, 0x1f, 0x2a30);
+			miiphy_write (reg, 0x08, 0x0200);
+			miiphy_write (reg, 0x1f, 0x52b5);
+			miiphy_write (reg, 0x02, 0x0004);
+			miiphy_write (reg, 0x01, 0x0671);
+			miiphy_write (reg, 0x00, 0x8fae);
+			miiphy_write (reg, 0x1f, 0x2a30);
+			miiphy_write (reg, 0x08, 0x0000);
+			miiphy_write (reg, 0x1f, 0x0000);
+			/* end Vitesse/Cicada errata */
+		}
 #endif
 #endif
 		/* Start/Restart autonegotiation */
 		phy_setup_aneg (reg);
 		udelay (1000);
 	}
+#endif /* CONFIG_NO_PHY_RESET */
 
 	miiphy_read (reg, PHY_BMSR, &reg_short);
 
@@ -538,14 +541,16 @@ static int ppc_440x_eth_init (struct eth_device *dev, bd_t * bis)
 	}
 
 	/* set the Mal configuration reg */
+#if defined(CONFIG_440_GX)
+	mtdcr (malmcr, MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA |
+	       MAL_CR_PLBLT_DEFAULT | MAL_CR_EOPIE | 0x00330000);
+#else
+	mtdcr (malmcr, MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA | MAL_CR_PLBLT_DEFAULT);
 	/* Errata 1.12: MAL_1 -- Disable MAL bursting */
-	if (get_pvr () == PVR_440GP_RB)
-		mtdcr (malmcr,
-		       MAL_CR_OPBBL | MAL_CR_LEA | MAL_CR_PLBLT_DEFAULT);
-	else
-		mtdcr (malmcr,
-		       MAL_CR_PLBB | MAL_CR_OPBBL | MAL_CR_LEA |
-		       MAL_CR_PLBLT_DEFAULT | MAL_CR_EOPIE | 0x00330000);
+	if (get_pvr() == PVR_440GP_RB) {
+		mtdcr (malmcr, mfdcr(malmcr) & ~MAL_CR_PLBB);
+	}
+#endif
 
 	/* Free "old" buffers */
 	if (hw_p->alloc_tx_buf)
diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c
index ae45a23..3a4b5d0 100644
--- a/cpu/ppc4xx/cpu.c
+++ b/cpu/ppc4xx/cpu.c
@@ -152,7 +152,7 @@ int checkcpu (void)
 #endif
 
 #if defined(CONFIG_440)
-	puts ("AMCC PowerPC 440 ");
+	puts ("AMCC PowerPC 440");
 	switch(pvr) {
 	case PVR_440GP_RB:
 		puts("GP Rev. B");
@@ -195,7 +195,7 @@ int checkcpu (void)
 #endif
 
 	default:
-		printf ("UNKNOWN (PVR=%08x)", pvr);
+		printf (" UNKNOWN (PVR=%08x)", pvr);
 		break;
 	}
 #endif
diff --git a/cpu/ppc4xx/spd_sdram.c b/cpu/ppc4xx/spd_sdram.c
index 520107a..e2eab62 100644
--- a/cpu/ppc4xx/spd_sdram.c
+++ b/cpu/ppc4xx/spd_sdram.c
@@ -1590,7 +1590,6 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
 			   unsigned long  num_dimm_banks)
 {
 	unsigned long dimm_num;
-	unsigned long bxcr_num;
 	unsigned long bank_base_addr;
 	unsigned long bank_size_bytes;
 	unsigned long cr;
@@ -1601,6 +1600,8 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
 	unsigned char num_banks;
 	unsigned char bank_size_id;
 
+#ifndef CONFIG_BAMBOO
+	unsigned long bxcr_num;
 
 	/*
 	 * Set the BxCR regs.  First, wipe out the bank config registers.
@@ -1609,11 +1610,16 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
 		mtdcr(memcfga, mem_b0cr + (bxcr_num << 2));
 		mtdcr(memcfgd, 0x00000000);
 	}
+#endif
 
 	/*
 	 * reset the bank_base address
 	 */
+#ifndef CONFIG_BAMBOO
 	bank_base_addr = CFG_SDRAM_BASE;
+#else
+	bank_base_addr = CFG_SDRAM_ONBOARD_SIZE;
+#endif
 
 	for (dimm_num = 0; dimm_num < num_dimm_banks; dimm_num++) {
 		if (dimm_populated[dimm_num] == TRUE) {
@@ -1691,7 +1697,11 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
 			  +-----------------------------------------------------------------*/
 			if (dimm_num == 0) {
 				for (i = 0; i < num_banks; i++) {
+#ifndef CONFIG_BAMBOO
 					mtdcr(memcfga, mem_b0cr + (i << 2));
+#else
+					mtdcr(memcfga, mem_b1cr + (i << 2));
+#endif
 					temp = mfdcr(memcfgd) & ~(SDRAM_BXCR_SDBA_MASK |
 								  SDRAM_BXCR_SDSZ_MASK |
 								  SDRAM_BXCR_SDAM_MASK |
@@ -1703,7 +1713,11 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
 				}
 			} else {
 				for (i = 0; i < num_banks; i++) {
+#ifndef CONFIG_BAMBOO
 					mtdcr(memcfga, mem_b2cr + (i << 2));
+#else
+					mtdcr(memcfga, mem_b3cr + (i << 2));
+#endif
 					temp = mfdcr(memcfgd) & ~(SDRAM_BXCR_SDBA_MASK |
 								  SDRAM_BXCR_SDSZ_MASK |
 								  SDRAM_BXCR_SDAM_MASK |
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 3a8ff2b..788c71c 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -379,11 +379,13 @@ __440gx_msr_continue:
 	li	r0,0
 #if defined(CONFIG_440_EP) || defined(CONFIG_440_GR)
 	/* Clear Dcache to use as RAM */
-	lis     r3,CFG_INIT_RAM_ADDR@h
-	li      r4,CFG_INIT_RAM_END@l
+        addis   r3,r0,CFG_INIT_RAM_ADDR@h
+        ori     r3,r3,CFG_INIT_RAM_ADDR@l
+        addis   r4,r0,CFG_INIT_RAM_END@h
+        ori     r4,r4,CFG_INIT_RAM_END@l
 	rlwinm. r5,r4,0,27,31
 	rlwinm  r5,r4,27,5,31
-	beq	..d_ran
+	beq     ..d_ran
 	addi    r5,r5,0x0001
 ..d_ran:
 	mtctr   r5