Merge with git://www.denx.de/git/u-boot.git
diff --git a/board/amcc/luan/luan.c b/board/amcc/luan/luan.c
index 2eff3b3..7b16f8a 100644
--- a/board/amcc/luan/luan.c
+++ b/board/amcc/luan/luan.c
@@ -104,6 +104,13 @@
 	return  0;
 }
 
+/*
+ * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with
+ * board specific values.
+ */
+u32 ddr_clktr(u32 default_val) {
+	return (SDRAM_CLKTR_CLKP_180_DEG_ADV);
+}
 
 /*************************************************************************
  *  int testdram()
diff --git a/board/amcc/yucca/yucca.c b/board/amcc/yucca/yucca.c
index 7316c34..d08fcf3 100644
--- a/board/amcc/yucca/yucca.c
+++ b/board/amcc/yucca/yucca.c
@@ -562,6 +562,40 @@
 	return 0;
 }
 
+/*
+ * Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with
+ * board specific values.
+ */
+static int ppc440spe_rev_a(void)
+{
+	if ((get_pvr() == PVR_440SPe_6_RA) || (get_pvr() == PVR_440SPe_RA))
+		return 1;
+	else
+		return 0;
+}
+
+u32 ddr_wrdtr(u32 default_val) {
+	/*
+	 * Yucca boards with 440SPe rev. A need a slightly different setup
+	 * for the MCIF0_WRDTR register.
+	 */
+	if (ppc440spe_rev_a())
+		return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_270_DEG_ADV);
+
+	return default_val;
+}
+
+u32 ddr_clktr(u32 default_val) {
+	/*
+	 * Yucca boards with 440SPe rev. A need a slightly different setup
+	 * for the MCIF0_CLKTR register.
+	 */
+	if (ppc440spe_rev_a())
+		return (SDRAM_CLKTR_CLKP_180_DEG_ADV);
+
+	return default_val;
+}
+
 #if defined(CFG_DRAM_TEST)
 int testdram (void)
 {
diff --git a/board/lwmon5/sdram.c b/board/lwmon5/sdram.c
index 9a4a8ee..b6863b6 100644
--- a/board/lwmon5/sdram.c
+++ b/board/lwmon5/sdram.c
@@ -54,7 +54,6 @@
 #define MY_TLB_WORD2_I_ENABLE	TLB_WORD2_I_ENABLE	/* disable caching on SDRAM */
 #endif
 
-void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
 void dcbz_area(u32 start_address, u32 num_bytes);
 void dflush(void);
 
diff --git a/cpu/ppc4xx/44x_spd_ddr.c b/cpu/ppc4xx/44x_spd_ddr.c
index 6d6fba1..e5f296e 100644
--- a/cpu/ppc4xx/44x_spd_ddr.c
+++ b/cpu/ppc4xx/44x_spd_ddr.c
@@ -271,7 +271,6 @@
 #ifdef CFG_SIMULATE_SPD_EEPROM
 extern unsigned char cfg_simulate_spd_eeprom[128];
 #endif
-void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
 
 static unsigned char spd_read(uchar chip, uint addr);
 static void get_spd_info(unsigned long *dimm_populated,
diff --git a/cpu/ppc4xx/44x_spd_ddr2.c b/cpu/ppc4xx/44x_spd_ddr2.c
index 5fef27b..18b90ba 100644
--- a/cpu/ppc4xx/44x_spd_ddr2.c
+++ b/cpu/ppc4xx/44x_spd_ddr2.c
@@ -109,7 +109,7 @@
 /* Defines for the Read Cycle Delay test */
 #define NUMMEMTESTS	8
 #define NUMMEMWORDS	8
-#define NUMLOOPS	256		/* memory test loops */
+#define NUMLOOPS	64		/* memory test loops */
 
 #undef CONFIG_ECC_ERROR_RESET		/* test-only: see description below, at check_ecc() */
 
@@ -138,6 +138,26 @@
 }
 void spd_ddr_init_hang (void) __attribute__((weak, alias("__spd_ddr_init_hang")));
 
+/*
+ * To provide an interface for board specific config values in this common
+ * DDR setup code, we implement he "weak" default functions here. They return
+ * the default value back to the caller.
+ *
+ * Please see include/configs/yucca.h for an example fora board specific
+ * implementation.
+ */
+u32 __ddr_wrdtr(u32 default_val)
+{
+	return default_val;
+}
+u32 ddr_wrdtr(u32) __attribute__((weak, alias("__ddr_wrdtr")));
+
+u32 __ddr_clktr(u32 default_val)
+{
+	return default_val;
+}
+u32 ddr_clktr(u32) __attribute__((weak, alias("__ddr_clktr")));
+
 
 /* Private Structure Definitions */
 
@@ -154,7 +174,6 @@
  * Prototypes
  *-----------------------------------------------------------------------------*/
 static unsigned long sdram_memsize(void);
-void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
 static void get_spd_info(unsigned long *dimm_populated,
 			 unsigned char *iic0_dimm_addr,
 			 unsigned long num_dimm_banks);
@@ -216,9 +235,7 @@
 #else
 static void	DQS_calibration_process(void);
 #endif
-#if defined(DEBUG)
 static void ppc440sp_sdram_register_dump(void);
-#endif
 int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 void dcbz_area(u32 start_address, u32 num_bytes);
 void dflush(void);
@@ -469,17 +486,14 @@
 	 *-----------------------------------------------------------------*/
 	mfsdram(SDRAM_WRDTR, val);
 	mtsdram(SDRAM_WRDTR, (val & ~(SDRAM_WRDTR_LLWP_MASK | SDRAM_WRDTR_WTR_MASK)) |
-		(SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_90_DEG_ADV));
+		ddr_wrdtr(SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_90_DEG_ADV));
 
 	/*------------------------------------------------------------------
 	 * Set the SDRAM Clock Timing Register
 	 *-----------------------------------------------------------------*/
 	mfsdram(SDRAM_CLKTR, val);
-#ifdef CFG_44x_DDR2_CKTR_180
-	mtsdram(SDRAM_CLKTR, (val & ~SDRAM_CLKTR_CLKP_MASK) | SDRAM_CLKTR_CLKP_180_DEG_ADV);
-#else
-	mtsdram(SDRAM_CLKTR, (val & ~SDRAM_CLKTR_CLKP_MASK) | SDRAM_CLKTR_CLKP_0_DEG);
-#endif
+	mtsdram(SDRAM_CLKTR, (val & ~SDRAM_CLKTR_CLKP_MASK) |
+		ddr_clktr(SDRAM_CLKTR_CLKP_0_DEG));
 
 	/*------------------------------------------------------------------
 	 * Program the BxCF registers.
@@ -538,7 +552,12 @@
 	dram_size = sdram_memsize();
 
 	/* and program tlb entries for this size (dynamic) */
-	program_tlb(0, 0, dram_size, MY_TLB_WORD2_I_ENABLE);
+
+	/*
+	 * Program TLB entries with caches enabled, for best performace
+	 * while auto-calibrating and ECC generation
+	 */
+	program_tlb(0, 0, dram_size, 0);
 
 	/*------------------------------------------------------------------
 	 * DQS calibration.
@@ -549,12 +568,18 @@
 	/*------------------------------------------------------------------
 	 * If ecc is enabled, initialize the parity bits.
 	 *-----------------------------------------------------------------*/
-	program_ecc(dimm_populated, iic0_dimm_addr, num_dimm_banks, MY_TLB_WORD2_I_ENABLE);
+	program_ecc(dimm_populated, iic0_dimm_addr, num_dimm_banks, 0);
 #endif
 
-#ifdef DEBUG
+	/*
+	 * Now after initialization (auto-calibration and ECC generation)
+	 * remove the TLB entries with caches enabled and program again with
+	 * desired cache functionality
+	 */
+	remove_tlb(0, dram_size);
+	program_tlb(0, 0, dram_size, MY_TLB_WORD2_I_ENABLE);
+
 	ppc440sp_sdram_register_dump();
-#endif
 
 	return dram_size;
 }
@@ -2703,6 +2728,7 @@
 		printf("\nERROR: Cannot determine a common read delay for the "
 		       "DIMM(s) installed.\n");
 		debug("%s[%d] ERROR : \n", __FUNCTION__,__LINE__);
+		ppc440sp_sdram_register_dump();
 		spd_ddr_init_hang ();
 	}
 
@@ -3028,5 +3054,9 @@
 	dcr_data = mfdcr(SDRAM_R3BAS);
 	printf("        MQ3_B0BAS       = 0x%08X\n", dcr_data);
 }
+#else
+static void ppc440sp_sdram_register_dump(void)
+{
+}
 #endif
 #endif /* CONFIG_SPD_EEPROM */
diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c
index 1200d02..b90363f 100644
--- a/cpu/ppc4xx/4xx_enet.c
+++ b/cpu/ppc4xx/4xx_enet.c
@@ -1415,10 +1415,8 @@
 			if ((MAL_RX_CTRL_EMPTY & hw_p->rx[i].ctrl)
 			    || (loop_count >= NUM_RX_BUFF))
 				break;
+
 			loop_count++;
-			hw_p->rx_slot++;
-			if (NUM_RX_BUFF == hw_p->rx_slot)
-				hw_p->rx_slot = 0;
 			handled++;
 			data_len = (unsigned long) hw_p->rx[i].data_len;	/* Get len */
 			if (data_len) {
@@ -1468,6 +1466,10 @@
 				if (NUM_RX_BUFF == hw_p->rx_i_index)
 					hw_p->rx_i_index = 0;
 
+				hw_p->rx_slot++;
+				if (NUM_RX_BUFF == hw_p->rx_slot)
+					hw_p->rx_slot = 0;
+
 				/*  AS.HARNOIS
 				 * free receive buffer only when
 				 * buffer has been handled (eth_rx)
diff --git a/cpu/ppc4xx/tlb.c b/cpu/ppc4xx/tlb.c
index 049a785..098694c 100644
--- a/cpu/ppc4xx/tlb.c
+++ b/cpu/ppc4xx/tlb.c
@@ -25,7 +25,6 @@
 
 #if defined(CONFIG_440)
 
-#include <ppc4xx.h>
 #include <ppc440.h>
 #include <asm/io.h>
 #include <asm/mmu.h>
@@ -36,6 +35,67 @@
 	unsigned long tlb_word2_i_value;
 } region_t;
 
+void remove_tlb(u32 vaddr, u32 size)
+{
+	int i;
+	u32 tlb_word0_value;
+	u32 tlb_vaddr;
+	u32 tlb_size = 0;
+
+	/* First, find the index of a TLB entry not being used */
+	for (i=0; i<PPC4XX_TLB_SIZE; i++) {
+		tlb_word0_value = mftlb1(i);
+		tlb_vaddr = TLB_WORD0_EPN_DECODE(tlb_word0_value);
+		if (((tlb_word0_value & TLB_WORD0_V_MASK) == TLB_WORD0_V_ENABLE) &&
+		    (tlb_vaddr >= vaddr)) {
+			/*
+			 * TLB is enabled and start address is lower or equal
+			 * than the area we are looking for. Now we only have
+			 * to check the size/end address for a match.
+			 */
+			switch (tlb_word0_value & TLB_WORD0_SIZE_MASK) {
+			case TLB_WORD0_SIZE_1KB:
+				tlb_size = 1 << 10;
+				break;
+			case TLB_WORD0_SIZE_4KB:
+				tlb_size = 4 << 10;
+				break;
+			case TLB_WORD0_SIZE_16KB:
+				tlb_size = 16 << 10;
+				break;
+			case TLB_WORD0_SIZE_64KB:
+				tlb_size = 64 << 10;
+				break;
+			case TLB_WORD0_SIZE_256KB:
+				tlb_size = 256 << 10;
+				break;
+			case TLB_WORD0_SIZE_1MB:
+				tlb_size = 1 << 20;
+				break;
+			case TLB_WORD0_SIZE_16MB:
+				tlb_size = 16 << 20;
+				break;
+			case TLB_WORD0_SIZE_256MB:
+				tlb_size = 256 << 20;
+				break;
+			}
+
+			/*
+			 * Now check the end-address if it's in the range
+			 */
+			if ((tlb_vaddr + tlb_size - 1) <= (vaddr + size - 1))
+				/*
+				 * Found a TLB in the range.
+				 * Disable it by writing 0 to tlb0 word.
+				 */
+				mttlb1(i, 0);
+		}
+	}
+
+	/* Execute an ISYNC instruction so that the new TLB entry takes effect */
+	asm("isync");
+}
+
 static int add_tlb_entry(unsigned long phys_addr,
 			 unsigned long virt_addr,
 			 unsigned long tlb_word0_size_value,
diff --git a/include/asm-ppc/mmu.h b/include/asm-ppc/mmu.h
index 48fd982..b3cfa9b 100644
--- a/include/asm-ppc/mmu.h
+++ b/include/asm-ppc/mmu.h
@@ -645,6 +645,9 @@
 unsigned long mftlb1(unsigned long index);
 unsigned long mftlb2(unsigned long index);
 unsigned long mftlb3(unsigned long index);
+
+void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
+void remove_tlb(u32 vaddr, u32 size);
 #endif /* __ASSEMBLY__ */
 
 #endif /* CONFIG_440 */
diff --git a/include/configs/luan.h b/include/configs/luan.h
index cbb59c5..e192d06 100644
--- a/include/configs/luan.h
+++ b/include/configs/luan.h
@@ -136,7 +136,6 @@
 #define CONFIG_SPD_EEPROM	1	/* Use SPD EEPROM for setup	*/
 #define SPD_EEPROM_ADDRESS	{0x53, 0x52}	/* SPD i2c spd addresses*/
 #define CONFIG_DDR_ECC		1	/* with ECC support		*/
-#define CFG_44x_DDR2_CKTR_180	1	/* use 180 deg advance		*/
 
 /*-----------------------------------------------------------------------
  * I2C
diff --git a/include/configs/lwmon5.h b/include/configs/lwmon5.h
index 1d87c73..c4b7c4e 100644
--- a/include/configs/lwmon5.h
+++ b/include/configs/lwmon5.h
@@ -162,6 +162,7 @@
 #define	CONFIG_EXTRA_ENV_SETTINGS					\
 	"hostname=lwmon5\0"						\
 	"netdev=eth0\0"							\
+	"unlock=yes\0"							\
 	"nfsargs=setenv bootargs root=/dev/nfs rw "			\
 		"nfsroot=${serverip}:${rootpath}\0"			\
 	"ramargs=setenv bootargs root=/dev/ram rw\0"			\
@@ -183,6 +184,8 @@
 	"update=protect off FFF80000 FFFFFFFF;era FFF80000 FFFFFFFF;"	\
 		"cp.b 200000 FFF80000 80000\0"			        \
 	"upd=run load;run update\0"					\
+	"lwe_env=tftp 200000 /tftpboot.dev/lwmon5/env_uboot.bin;"	\
+		"autoscr 200000\0"					\
 	""
 #define CONFIG_BOOTCOMMAND	"run flash_self"