From 7187db73491c8de0fb56efb5e5134ba5ec443089 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 13:45:00 +0200
Subject: ppc4xx: Update 44x_spd_ddr2 code (440SP/440SPe)

Add config option for 180 degree advance clock control as needed
for the AMCC Luan eval board.

Signed-off-by: Stefan Roese <sr@denx.de>
---
 cpu/ppc4xx/44x_spd_ddr2.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/cpu/ppc4xx/44x_spd_ddr2.c b/cpu/ppc4xx/44x_spd_ddr2.c
index 2ecd3e4..48b9ee2 100644
--- a/cpu/ppc4xx/44x_spd_ddr2.c
+++ b/cpu/ppc4xx/44x_spd_ddr2.c
@@ -465,7 +465,11 @@ long int initdram(int board_type)
 	 * 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
 
 	/*------------------------------------------------------------------
 	 * Program the BxCF registers.
@@ -1117,7 +1121,8 @@ static void program_codt(unsigned long *dimm_populated,
 				modt3 = 0x00000000;
 			}
 			if (total_rank == 4) {
-				codt |= CALC_ODT_R(0) | CALC_ODT_R(1) | CALC_ODT_R(2) | CALC_ODT_R(3);
+				codt |= CALC_ODT_R(0) | CALC_ODT_R(1) |
+					CALC_ODT_R(2) | CALC_ODT_R(3);
 				modt0 = CALC_ODT_RW(2);
 				modt1 = 0x00000000;
 				modt2 = CALC_ODT_RW(0);
-- 
cgit v1.1


From e4bbed2803a2ad0521c7362f5d3e065f99abaedc Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 13:45:24 +0200
Subject: ppc4xx: Change Luan config file to support ECC

With the updated 44x DDR2 driver the Luan board now supports
ECC generation and checking.

Signed-off-by: Stefan Roese <sr@denx.de>
---
 include/configs/luan.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/configs/luan.h b/include/configs/luan.h
index 9c8769b..045a144 100644
--- a/include/configs/luan.h
+++ b/include/configs/luan.h
@@ -135,7 +135,8 @@
  *----------------------------------------------------------------------*/
 #define CONFIG_SPD_EEPROM	1	/* Use SPD EEPROM for setup	*/
 #define SPD_EEPROM_ADDRESS	{0x53, 0x52}	/* SPD i2c spd addresses*/
-#undef CONFIG_DDR_ECC			/* no ECC support for now	*/
+#define CONFIG_DDR_ECC		1	/* with ECC support		*/
+#define CFG_44x_DDR2_CKTR_180	1	/* use 180 deg advance		*/
 
 /*-----------------------------------------------------------------------
  * I2C
-- 
cgit v1.1


From d2d432760d2199d0e8558fdd9d1789b8131abcf7 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 15:09:50 +0200
Subject: ppc4xx: 44x DDR driver code cleanup and small fix for Bamboo

Signed-off-by: Stefan Roese <sr@denx.de>
---
 cpu/ppc4xx/44x_spd_ddr.c | 341 +++++++++++++++++++++++------------------------
 1 file changed, 166 insertions(+), 175 deletions(-)

diff --git a/cpu/ppc4xx/44x_spd_ddr.c b/cpu/ppc4xx/44x_spd_ddr.c
index 10b4c18..c500d3f 100644
--- a/cpu/ppc4xx/44x_spd_ddr.c
+++ b/cpu/ppc4xx/44x_spd_ddr.c
@@ -20,7 +20,7 @@
  * Jun Gu, Artesyn Technology, jung@artesyncp.com
  * Support for AMCC 440 based on OpenBIOS draminit.c from IBM.
  *
- * (C) Copyright 2005
+ * (C) Copyright 2005-2007
  * Stefan Roese, DENX Software Engineering, sr@denx.de.
  *
  * See file CREDITS for list of people who contributed to this
@@ -42,6 +42,11 @@
  * MA 02111-1307 USA
  */
 
+/* define DEBUG for debugging output (obviously ;-)) */
+#if 0
+#define DEBUG
+#endif
+
 #include <common.h>
 #include <asm/processor.h>
 #include <i2c.h>
@@ -246,25 +251,6 @@
 #define MY_TLB_WORD2_I_ENABLE	TLB_WORD2_I_ENABLE	/* disable caching on SDRAM */
 #endif
 
-const unsigned long test[NUMMEMTESTS][NUMMEMWORDS] = {
-	{0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000,
-	 0xFFFFFFFF, 0xFFFFFFFF},
-	{0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF,
-	 0x00000000, 0x00000000},
-	{0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA,
-	 0x55555555, 0x55555555},
-	{0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555,
-	 0xAAAAAAAA, 0xAAAAAAAA},
-	{0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5,
-	 0x5A5A5A5A, 0x5A5A5A5A},
-	{0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A,
-	 0xA5A5A5A5, 0xA5A5A5A5},
-	{0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55,
-	 0x55AA55AA, 0x55AA55AA},
-	{0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA,
-	 0xAA55AA55, 0xAA55AA55}
-};
-
 /* bank_parms is used to sort the bank sizes by descending order */
 struct bank_param {
 	unsigned long cr;
@@ -278,46 +264,37 @@ extern unsigned char cfg_simulate_spd_eeprom[128];
 #endif
 void program_tlb(u32 start, u32 size, u32 tlb_word2_i_value);
 
-unsigned char spd_read(uchar chip, uint addr);
-
-void get_spd_info(unsigned long* dimm_populated,
-		  unsigned char* iic0_dimm_addr,
-		  unsigned long	 num_dimm_banks);
-
-void check_mem_type
-(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long	num_dimm_banks);
-
-void check_volt_type
-(unsigned long* dimm_populated,
- unsigned char* iic0_dimm_addr,
- unsigned long	num_dimm_banks);
-
-void program_cfg0(unsigned long* dimm_populated,
-		  unsigned char* iic0_dimm_addr,
-		  unsigned long	 num_dimm_banks);
-
-void program_cfg1(unsigned long* dimm_populated,
-		  unsigned char* iic0_dimm_addr,
-		  unsigned long	 num_dimm_banks);
-
-void program_rtr (unsigned long* dimm_populated,
-		  unsigned char* iic0_dimm_addr,
-		  unsigned long	 num_dimm_banks);
-
-void program_tr0 (unsigned long* dimm_populated,
-		  unsigned char* iic0_dimm_addr,
-		  unsigned long	 num_dimm_banks);
-
-void program_tr1 (void);
-
-void program_ecc (unsigned long	 num_bytes);
+static unsigned char spd_read(uchar chip, uint addr);
+static void get_spd_info(unsigned long *dimm_populated,
+			 unsigned char *iic0_dimm_addr,
+			 unsigned long num_dimm_banks);
+static void check_mem_type(unsigned long *dimm_populated,
+			   unsigned char *iic0_dimm_addr,
+			   unsigned long num_dimm_banks);
+static void check_volt_type(unsigned long *dimm_populated,
+			    unsigned char *iic0_dimm_addr,
+			    unsigned long num_dimm_banks);
+static void program_cfg0(unsigned long *dimm_populated,
+			 unsigned char *iic0_dimm_addr,
+			 unsigned long  num_dimm_banks);
+static void program_cfg1(unsigned long *dimm_populated,
+			 unsigned char *iic0_dimm_addr,
+			 unsigned long num_dimm_banks);
+static void program_rtr(unsigned long *dimm_populated,
+			unsigned char *iic0_dimm_addr,
+			unsigned long num_dimm_banks);
+static void program_tr0(unsigned long *dimm_populated,
+			unsigned char *iic0_dimm_addr,
+			unsigned long num_dimm_banks);
+static void program_tr1(void);
+
+#ifdef CONFIG_DDR_ECC
+static void program_ecc(unsigned long num_bytes);
+#endif
 
-unsigned
-long  program_bxcr(unsigned long* dimm_populated,
-		   unsigned char* iic0_dimm_addr,
-		   unsigned long  num_dimm_banks);
+static unsigned long program_bxcr(unsigned long *dimm_populated,
+				  unsigned char *iic0_dimm_addr,
+				  unsigned long num_dimm_banks);
 
 /*
  * This function is reading data from the DIMM module EEPROM over the SPD bus
@@ -328,7 +305,6 @@ long  program_bxcr(unsigned long* dimm_populated,
  * BUG: Don't handle ECC memory
  * BUG: A few values in the TR register is currently hardcoded
  */
-
 long int spd_sdram(void) {
 	unsigned char iic0_dimm_addr[] = SPD_EEPROM_ADDRESS;
 	unsigned long dimm_populated[sizeof(iic0_dimm_addr)];
@@ -421,9 +397,8 @@ long int spd_sdram(void) {
 	 */
 	while (1) {
 		mfsdram(mem_mcsts, mcsts);
-		if ((mcsts & SDRAM_MCSTS_MRSC) != 0) {
+		if ((mcsts & SDRAM_MCSTS_MRSC) != 0)
 			break;
-		}
 	}
 
 	/*
@@ -431,14 +406,17 @@ long int spd_sdram(void) {
 	 */
 	program_tr1();
 
+#ifdef CONFIG_DDR_ECC
 	/*
-	 * if ECC is enabled, initialize parity bits
+	 * If ecc is enabled, initialize the parity bits.
 	 */
+	program_ecc(total_size);
+#endif
 
 	return total_size;
 }
 
-unsigned char spd_read(uchar chip, uint addr)
+static unsigned char spd_read(uchar chip, uint addr)
 {
 	unsigned char data[2];
 
@@ -460,9 +438,9 @@ unsigned char spd_read(uchar chip, uint addr)
 	return 0;
 }
 
-void get_spd_info(unsigned long*   dimm_populated,
-		  unsigned char*   iic0_dimm_addr,
-		  unsigned long	   num_dimm_banks)
+static void get_spd_info(unsigned long *dimm_populated,
+			 unsigned char *iic0_dimm_addr,
+			 unsigned long num_dimm_banks)
 {
 	unsigned long dimm_num;
 	unsigned long dimm_found;
@@ -480,14 +458,10 @@ void get_spd_info(unsigned long*   dimm_populated,
 		if ((num_of_bytes != 0) && (total_size != 0)) {
 			dimm_populated[dimm_num] = TRUE;
 			dimm_found = TRUE;
-#if 0
-			printf("DIMM slot %lu: populated\n", dimm_num);
-#endif
+			debug("DIMM slot %lu: populated\n", dimm_num);
 		} else {
 			dimm_populated[dimm_num] = FALSE;
-#if 0
-			printf("DIMM slot %lu: Not populated\n", dimm_num);
-#endif
+			debug("DIMM slot %lu: Not populated\n", dimm_num);
 		}
 	}
 
@@ -497,9 +471,9 @@ void get_spd_info(unsigned long*   dimm_populated,
 	}
 }
 
-void check_mem_type(unsigned long*   dimm_populated,
-		    unsigned char*   iic0_dimm_addr,
-		    unsigned long    num_dimm_banks)
+static void check_mem_type(unsigned long *dimm_populated,
+			   unsigned char *iic0_dimm_addr,
+			   unsigned long num_dimm_banks)
 {
 	unsigned long dimm_num;
 	unsigned char dimm_type;
@@ -509,9 +483,7 @@ void check_mem_type(unsigned long*   dimm_populated,
 			dimm_type = spd_read(iic0_dimm_addr[dimm_num], 2);
 			switch (dimm_type) {
 			case 7:
-#if 0
-				printf("DIMM slot %lu: DDR SDRAM detected\n", dimm_num);
-#endif
+				debug("DIMM slot %lu: DDR SDRAM detected\n", dimm_num);
 				break;
 			default:
 				printf("ERROR: Unsupported DIMM detected in slot %lu.\n",
@@ -525,10 +497,9 @@ void check_mem_type(unsigned long*   dimm_populated,
 	}
 }
 
-
-void check_volt_type(unsigned long*   dimm_populated,
-		     unsigned char*   iic0_dimm_addr,
-		     unsigned long    num_dimm_banks)
+static void check_volt_type(unsigned long *dimm_populated,
+			    unsigned char *iic0_dimm_addr,
+			    unsigned long num_dimm_banks)
 {
 	unsigned long dimm_num;
 	unsigned long voltage_type;
@@ -541,18 +512,16 @@ void check_volt_type(unsigned long*   dimm_populated,
 				       dimm_num);
 				hang();
 			} else {
-#if 0
-				printf("DIMM %lu voltage level supported.\n", dimm_num);
-#endif
+				debug("DIMM %lu voltage level supported.\n", dimm_num);
 			}
 			break;
 		}
 	}
 }
 
-void program_cfg0(unsigned long* dimm_populated,
-		  unsigned char* iic0_dimm_addr,
-		  unsigned long	 num_dimm_banks)
+static void program_cfg0(unsigned long *dimm_populated,
+			 unsigned char *iic0_dimm_addr,
+			 unsigned long num_dimm_banks)
 {
 	unsigned long dimm_num;
 	unsigned long cfg0;
@@ -640,9 +609,9 @@ void program_cfg0(unsigned long* dimm_populated,
 	mtsdram(mem_cfg0, cfg0);
 }
 
-void program_cfg1(unsigned long* dimm_populated,
-		  unsigned char* iic0_dimm_addr,
-		  unsigned long	 num_dimm_banks)
+static void program_cfg1(unsigned long *dimm_populated,
+			 unsigned char *iic0_dimm_addr,
+			 unsigned long num_dimm_banks)
 {
 	unsigned long cfg1;
 	mfsdram(mem_cfg1, cfg1);
@@ -658,9 +627,9 @@ void program_cfg1(unsigned long* dimm_populated,
 	mtsdram(mem_cfg1, cfg1);
 }
 
-void program_rtr (unsigned long* dimm_populated,
-		  unsigned char* iic0_dimm_addr,
-		  unsigned long	 num_dimm_banks)
+static void program_rtr(unsigned long *dimm_populated,
+			unsigned char *iic0_dimm_addr,
+			unsigned long num_dimm_banks)
 {
 	unsigned long dimm_num;
 	unsigned long bus_period_x_10;
@@ -676,7 +645,6 @@ void program_rtr (unsigned long* dimm_populated,
 	get_sys_info(&sys_info);
 	bus_period_x_10 = ONE_BILLION / (sys_info.freqPLB / 10);
 
-
 	for (dimm_num = 0;  dimm_num < num_dimm_banks; dimm_num++) {
 		if (dimm_populated[dimm_num] == TRUE) {
 			refresh_rate_type = 0x7F & spd_read(iic0_dimm_addr[dimm_num], 12);
@@ -719,9 +687,9 @@ void program_rtr (unsigned long* dimm_populated,
 	mtsdram(mem_rtr, sdram_rtr);
 }
 
-void program_tr0 (unsigned long* dimm_populated,
-		  unsigned char* iic0_dimm_addr,
-		  unsigned long	 num_dimm_banks)
+static void program_tr0(unsigned long *dimm_populated,
+			 unsigned char *iic0_dimm_addr,
+			 unsigned long num_dimm_banks)
 {
 	unsigned long dimm_num;
 	unsigned long tr0;
@@ -1001,13 +969,73 @@ void program_tr0 (unsigned long* dimm_populated,
 		break;
 	}
 
-#if 0
-	printf("tr0: %x\n", tr0);
-#endif
+	debug("tr0: %x\n", tr0);
 	mtsdram(mem_tr0, tr0);
 }
 
-void program_tr1 (void)
+static int short_mem_test(void)
+{
+	unsigned long i, j;
+	unsigned long bxcr_num;
+	unsigned long *membase;
+	const unsigned long test[NUMMEMTESTS][NUMMEMWORDS] = {
+		{0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF,
+		 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF},
+		{0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000,
+		 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000},
+		{0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555,
+		 0xAAAAAAAA, 0xAAAAAAAA, 0x55555555, 0x55555555},
+		{0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA,
+		 0x55555555, 0x55555555, 0xAAAAAAAA, 0xAAAAAAAA},
+		{0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A,
+		 0xA5A5A5A5, 0xA5A5A5A5, 0x5A5A5A5A, 0x5A5A5A5A},
+		{0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5,
+		 0x5A5A5A5A, 0x5A5A5A5A, 0xA5A5A5A5, 0xA5A5A5A5},
+		{0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA,
+		 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA},
+		{0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55,
+		 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55}};
+
+	for (bxcr_num = 0; bxcr_num < MAXBXCR; bxcr_num++) {
+		mtdcr(memcfga, mem_b0cr + (bxcr_num << 2));
+		if ((mfdcr(memcfgd) & SDRAM_BXCR_SDBE) == SDRAM_BXCR_SDBE) {
+			/* Bank is enabled */
+			membase = (unsigned long*)
+				(mfdcr(memcfgd) & SDRAM_BXCR_SDBA_MASK);
+
+			/*
+			 * Run the short memory test
+			 */
+			for (i = 0; i < NUMMEMTESTS; i++) {
+				for (j = 0; j < NUMMEMWORDS; j++) {
+					membase[j] = test[i][j];
+					ppcDcbf((unsigned long)&(membase[j]));
+				}
+
+				for (j = 0; j < NUMMEMWORDS; j++) {
+					if (membase[j] != test[i][j]) {
+						ppcDcbf((unsigned long)&(membase[j]));
+						return 0;
+					}
+					ppcDcbf((unsigned long)&(membase[j]));
+				}
+
+				if (j < NUMMEMWORDS)
+					return 0;
+			}
+
+			/*
+			 * see if the rdclt value passed
+			 */
+			if (i < NUMMEMTESTS)
+				return 0;
+		}
+	}
+
+	return 1;
+}
+
+static void program_tr1(void)
 {
 	unsigned long tr0;
 	unsigned long tr1;
@@ -1015,8 +1043,7 @@ void program_tr1 (void)
 	unsigned long ecc_temp;
 	unsigned long dlycal;
 	unsigned long dly_val;
-	unsigned long i, j, k;
-	unsigned long bxcr_num;
+	unsigned long k;
 	unsigned long max_pass_length;
 	unsigned long current_pass_length;
 	unsigned long current_fail_length;
@@ -1029,7 +1056,6 @@ void program_tr1 (void)
 	unsigned char window_found;
 	unsigned char fail_found;
 	unsigned char pass_found;
-	unsigned long * membase;
 	PPC440_SYS_INFO sys_info;
 
 	/*
@@ -1079,55 +1105,16 @@ void program_tr1 (void)
 	window_found = FALSE;
 	fail_found = FALSE;
 	pass_found = FALSE;
-#ifdef DEBUG
-	printf("Starting memory test ");
-#endif
+	debug("Starting memory test ");
+
 	for (k = 0; k < NUMHALFCYCLES; k++) {
-		for (rdclt = 0; rdclt < dly_val; rdclt++)  {
+		for (rdclt = 0; rdclt < dly_val; rdclt++) {
 			/*
 			 * Set the timing reg for the test.
 			 */
 			mtsdram(mem_tr1, (tr1 | SDRAM_TR1_RDCT_ENCODE(rdclt)));
 
-			for (bxcr_num = 0; bxcr_num < MAXBXCR; bxcr_num++) {
-				mtdcr(memcfga, mem_b0cr + (bxcr_num<<2));
-				if ((mfdcr(memcfgd) & SDRAM_BXCR_SDBE) == SDRAM_BXCR_SDBE) {
-					/* Bank is enabled */
-					membase = (unsigned long*)
-						(mfdcr(memcfgd) & SDRAM_BXCR_SDBA_MASK);
-
-					/*
-					 * Run the short memory test
-					 */
-					for (i = 0; i < NUMMEMTESTS; i++) {
-						for (j = 0; j < NUMMEMWORDS; j++) {
-							membase[j] = test[i][j];
-							ppcDcbf((unsigned long)&(membase[j]));
-						}
-
-						for (j = 0; j < NUMMEMWORDS; j++) {
-							if (membase[j] != test[i][j]) {
-								ppcDcbf((unsigned long)&(membase[j]));
-								break;
-							}
-							ppcDcbf((unsigned long)&(membase[j]));
-						}
-
-						if (j < NUMMEMWORDS) {
-							break;
-						}
-					}
-
-					/*
-					 * see if the rdclt value passed
-					 */
-					if (i < NUMMEMTESTS) {
-						break;
-					}
-				}
-			}
-
-			if (bxcr_num == MAXBXCR) {
+			if (short_mem_test()) {
 				if (fail_found == TRUE) {
 					pass_found = TRUE;
 					if (current_pass_length == 0) {
@@ -1157,9 +1144,8 @@ void program_tr1 (void)
 				}
 			}
 		}
-#ifdef DEBUG
-		printf(".");
-#endif
+		debug(".");
+
 		if (window_found == TRUE) {
 			break;
 		}
@@ -1167,9 +1153,7 @@ void program_tr1 (void)
 		tr1 = tr1 ^ SDRAM_TR1_RDCD_MASK;
 		rdclt_offset += dly_val;
 	}
-#ifdef DEBUG
-	printf("\n");
-#endif
+	debug("\n");
 
 	/*
 	 * make sure we find the window
@@ -1218,18 +1202,17 @@ void program_tr1 (void)
 	}
 	tr1 |= SDRAM_TR1_RDCT_ENCODE(rdclt_average);
 
-#if 0
-	printf("tr1: %x\n", tr1);
-#endif
+	debug("tr1: %x\n", tr1);
+
 	/*
 	 * program SDRAM Timing Register 1 TR1
 	 */
 	mtsdram(mem_tr1, tr1);
 }
 
-unsigned long program_bxcr(unsigned long* dimm_populated,
-			   unsigned char* iic0_dimm_addr,
-			   unsigned long  num_dimm_banks)
+static unsigned long program_bxcr(unsigned long *dimm_populated,
+				  unsigned char *iic0_dimm_addr,
+				  unsigned long num_dimm_banks)
 {
 	unsigned long dimm_num;
 	unsigned long bank_base_addr;
@@ -1262,8 +1245,8 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
 #ifdef CONFIG_BAMBOO
 	/*
 	 * This next section is hardware dependent and must be programmed
-	 * to match the hardware.  For bammboo, the following holds...
-	 * 1. SDRAM0_B0CR: Bank 0 of dimm 0 ctrl_bank_num : 0
+	 * to match the hardware.  For bamboo, the following holds...
+	 * 1. SDRAM0_B0CR: Bank 0 of dimm 0 ctrl_bank_num : 0 (soldered onboard)
 	 * 2. SDRAM0_B1CR: Bank 0 of dimm 1 ctrl_bank_num : 1
 	 * 3. SDRAM0_B2CR: Bank 1 of dimm 1 ctrl_bank_num : 1
 	 * 4. SDRAM0_B3CR: Bank 0 of dimm 2 ctrl_bank_num : 3
@@ -1273,10 +1256,12 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
 	ctrl_bank_num[1] = 1;
 	ctrl_bank_num[2] = 3;
 #else
+	/*
+	 * Ocotea, Ebony and the other IBM/AMCC eval boards have
+	 * 2 DIMM slots with each max 2 banks
+	 */
 	ctrl_bank_num[0] = 0;
-	ctrl_bank_num[1] = 1;
-	ctrl_bank_num[2] = 2;
-	ctrl_bank_num[3] = 3;
+	ctrl_bank_num[1] = 2;
 #endif
 
 	/*
@@ -1290,6 +1275,8 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
 			num_col_addr = spd_read(iic0_dimm_addr[dimm_num], 4);
 			num_banks    = spd_read(iic0_dimm_addr[dimm_num], 5);
 			bank_size_id = spd_read(iic0_dimm_addr[dimm_num], 31);
+			debug("DIMM%d: row=%d col=%d banks=%d\n", dimm_num,
+			      num_row_addr, num_col_addr, num_banks);
 
 			/*
 			 * Set the SDRAM0_BxCR regs
@@ -1354,9 +1341,12 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
 			cr |= SDRAM_BXCR_SDBE;
 
  			for (i = 0; i < num_banks; i++) {
-				bank_parms[ctrl_bank_num[dimm_num]+i+dimm_num].bank_size_bytes =
-					(4 * 1024 * 1024) * bank_size_id;
-				bank_parms[ctrl_bank_num[dimm_num]+i+dimm_num].cr = cr;
+				bank_parms[ctrl_bank_num[dimm_num]+i].bank_size_bytes =
+					(4 << 20) * bank_size_id;
+				bank_parms[ctrl_bank_num[dimm_num]+i].cr = cr;
+				debug("DIMM%d-bank %d (SDRAM0_B%dCR): bank_size_bytes=%d\n",
+				      dimm_num, i, ctrl_bank_num[dimm_num]+i,
+				      bank_parms[ctrl_bank_num[dimm_num]+i].bank_size_bytes);
  			}
 		}
 	}
@@ -1400,13 +1390,15 @@ unsigned long program_bxcr(unsigned long* dimm_populated,
 				bank_parms[sorted_bank_num[bx_cr_num]].cr;
 			mtdcr(memcfgd, temp);
 			bank_base_addr += bank_parms[sorted_bank_num[bx_cr_num]].bank_size_bytes;
+			debug("SDRAM0_B%dCR=0x%08lx\n", sorted_bank_num[bx_cr_num], temp);
 		}
 	}
 
 	return(bank_base_addr);
 }
 
-void program_ecc (unsigned long	 num_bytes)
+#ifdef CONFIG_DDR_ECC
+static void program_ecc(unsigned long num_bytes)
 {
 	unsigned long bank_base_addr;
 	unsigned long current_address;
@@ -1425,14 +1417,12 @@ void program_ecc (unsigned long	 num_bytes)
 	bank_base_addr = CFG_SDRAM_BASE;
 
 	if ((cfg0 & SDRAM_CFG0_MCHK_MASK) != SDRAM_CFG0_MCHK_NON) {
-		mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) |
-			SDRAM_CFG0_MCHK_GEN);
+		mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | SDRAM_CFG0_MCHK_GEN);
 
-		if ((cfg0 & SDRAM_CFG0_DMWD_MASK) == SDRAM_CFG0_DMWD_32) {
+		if ((cfg0 & SDRAM_CFG0_DMWD_MASK) == SDRAM_CFG0_DMWD_32)
 			address_increment = 4;
-		} else {
+		else
 			address_increment = 8;
-		}
 
 		current_address = (unsigned long)(bank_base_addr);
 		end_address = (unsigned long)(bank_base_addr) + num_bytes;
@@ -1446,4 +1436,5 @@ void program_ecc (unsigned long	 num_bytes)
 			SDRAM_CFG0_MCHK_CHK);
 	}
 }
+#endif /* CONFIG_DDR_ECC */
 #endif /* CONFIG_SPD_EEPROM */
-- 
cgit v1.1


From 17b5e862287cca76f19dcf8b741e61a7d06617f2 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 15:12:15 +0200
Subject: NAND: Update nand_ecc.c to latest Linux version

This patch updates the nand_ecc code to the latest Linux version.
The main reason for this is the more compact code. This makes
it possible to include the ECC code into the NAND bootloader
image (NAND_SPL) for PPC4xx.

Signed-off-by: Stefan Roese <sr@denx.de>
---
 drivers/nand/nand_ecc.c | 228 +++++++++++++++++++-----------------------------
 1 file changed, 92 insertions(+), 136 deletions(-)

diff --git a/drivers/nand/nand_ecc.c b/drivers/nand/nand_ecc.c
index f33be96..90274e6 100644
--- a/drivers/nand/nand_ecc.c
+++ b/drivers/nand/nand_ecc.c
@@ -40,6 +40,13 @@
 #if (CONFIG_COMMANDS & CFG_CMD_NAND) && !defined(CFG_NAND_LEGACY)
 
 #include<linux/mtd/mtd.h>
+
+/*
+ * NAND-SPL has no sofware ECC for now, so don't include nand_calculate_ecc(),
+ * only nand_correct_data() is needed
+ */
+
+#ifndef CONFIG_NAND_SPL
 /*
  * Pre-calculated 256-way 1 byte column parity
  */
@@ -62,90 +69,75 @@ static const u_char nand_ecc_precalc_table[] = {
 	0x00, 0x55, 0x56, 0x03, 0x59, 0x0c, 0x0f, 0x5a, 0x5a, 0x0f, 0x0c, 0x59, 0x03, 0x56, 0x55, 0x00
 };
 
-
-/**
- * nand_trans_result - [GENERIC] create non-inverted ECC
- * @reg2:	line parity reg 2
- * @reg3:	line parity reg 3
- * @ecc_code:	ecc
- *
- * Creates non-inverted ECC code from line parity
- */
-static void nand_trans_result(u_char reg2, u_char reg3,
-	u_char *ecc_code)
-{
-	u_char a, b, i, tmp1, tmp2;
-
-	/* Initialize variables */
-	a = b = 0x80;
-	tmp1 = tmp2 = 0;
-
-	/* Calculate first ECC byte */
-	for (i = 0; i < 4; i++) {
-		if (reg3 & a)		/* LP15,13,11,9 --> ecc_code[0] */
-			tmp1 |= b;
-		b >>= 1;
-		if (reg2 & a)		/* LP14,12,10,8 --> ecc_code[0] */
-			tmp1 |= b;
-		b >>= 1;
-		a >>= 1;
-	}
-
-	/* Calculate second ECC byte */
-	b = 0x80;
-	for (i = 0; i < 4; i++) {
-		if (reg3 & a)		/* LP7,5,3,1 --> ecc_code[1] */
-			tmp2 |= b;
-		b >>= 1;
-		if (reg2 & a)		/* LP6,4,2,0 --> ecc_code[1] */
-			tmp2 |= b;
-		b >>= 1;
-		a >>= 1;
-	}
-
-	/* Store two of the ECC bytes */
-	ecc_code[0] = tmp1;
-	ecc_code[1] = tmp2;
-}
-
 /**
- * nand_calculate_ecc - [NAND Interface] Calculate 3 byte ECC code for 256 byte block
+ * nand_calculate_ecc - [NAND Interface] Calculate 3-byte ECC for 256-byte block
  * @mtd:	MTD block structure
  * @dat:	raw data
  * @ecc_code:	buffer for ECC
  */
-int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
+int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
+		       u_char *ecc_code)
 {
-	u_char idx, reg1, reg2, reg3;
-	int j;
+	uint8_t idx, reg1, reg2, reg3, tmp1, tmp2;
+	int i;
 
 	/* Initialize variables */
 	reg1 = reg2 = reg3 = 0;
-	ecc_code[0] = ecc_code[1] = ecc_code[2] = 0;
 
 	/* Build up column parity */
-	for(j = 0; j < 256; j++) {
-
+	for(i = 0; i < 256; i++) {
 		/* Get CP0 - CP5 from table */
-		idx = nand_ecc_precalc_table[dat[j]];
+		idx = nand_ecc_precalc_table[*dat++];
 		reg1 ^= (idx & 0x3f);
 
 		/* All bit XOR = 1 ? */
 		if (idx & 0x40) {
-			reg3 ^= (u_char) j;
-			reg2 ^= ~((u_char) j);
+			reg3 ^= (uint8_t) i;
+			reg2 ^= ~((uint8_t) i);
 		}
 	}
 
 	/* Create non-inverted ECC code from line parity */
-	nand_trans_result(reg2, reg3, ecc_code);
+	tmp1  = (reg3 & 0x80) >> 0; /* B7 -> B7 */
+	tmp1 |= (reg2 & 0x80) >> 1; /* B7 -> B6 */
+	tmp1 |= (reg3 & 0x40) >> 1; /* B6 -> B5 */
+	tmp1 |= (reg2 & 0x40) >> 2; /* B6 -> B4 */
+	tmp1 |= (reg3 & 0x20) >> 2; /* B5 -> B3 */
+	tmp1 |= (reg2 & 0x20) >> 3; /* B5 -> B2 */
+	tmp1 |= (reg3 & 0x10) >> 3; /* B4 -> B1 */
+	tmp1 |= (reg2 & 0x10) >> 4; /* B4 -> B0 */
+
+	tmp2  = (reg3 & 0x08) << 4; /* B3 -> B7 */
+	tmp2 |= (reg2 & 0x08) << 3; /* B3 -> B6 */
+	tmp2 |= (reg3 & 0x04) << 3; /* B2 -> B5 */
+	tmp2 |= (reg2 & 0x04) << 2; /* B2 -> B4 */
+	tmp2 |= (reg3 & 0x02) << 2; /* B1 -> B3 */
+	tmp2 |= (reg2 & 0x02) << 1; /* B1 -> B2 */
+	tmp2 |= (reg3 & 0x01) << 1; /* B0 -> B1 */
+	tmp2 |= (reg2 & 0x01) << 0; /* B7 -> B0 */
 
 	/* Calculate final ECC code */
-	ecc_code[0] = ~ecc_code[0];
-	ecc_code[1] = ~ecc_code[1];
+#ifdef CONFIG_MTD_NAND_ECC_SMC
+	ecc_code[0] = ~tmp2;
+	ecc_code[1] = ~tmp1;
+#else
+	ecc_code[0] = ~tmp1;
+	ecc_code[1] = ~tmp2;
+#endif
 	ecc_code[2] = ((~reg1) << 2) | 0x03;
+
 	return 0;
 }
+#endif /* CONFIG_NAND_SPL */
+
+static inline int countbits(uint32_t byte)
+{
+	int res = 0;
+
+	for (;byte; byte >>= 1)
+		res += byte & 0x01;
+	return res;
+}
 
 /**
  * nand_correct_data - [NAND Interface] Detect and correct bit error(s)
@@ -156,88 +148,52 @@ int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code
  *
  * Detect and correct a 1 bit error for 256 byte block
  */
-int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc)
+int nand_correct_data(struct mtd_info *mtd, u_char *dat,
+		      u_char *read_ecc, u_char *calc_ecc)
 {
-	u_char a, b, c, d1, d2, d3, add, bit, i;
+	uint8_t s0, s1, s2;
+
+#ifdef CONFIG_MTD_NAND_ECC_SMC
+	s0 = calc_ecc[0] ^ read_ecc[0];
+	s1 = calc_ecc[1] ^ read_ecc[1];
+	s2 = calc_ecc[2] ^ read_ecc[2];
+#else
+	s1 = calc_ecc[0] ^ read_ecc[0];
+	s0 = calc_ecc[1] ^ read_ecc[1];
+	s2 = calc_ecc[2] ^ read_ecc[2];
+#endif
+	if ((s0 | s1 | s2) == 0)
+		return 0;
 
-	/* Do error detection */
-	d1 = calc_ecc[0] ^ read_ecc[0];
-	d2 = calc_ecc[1] ^ read_ecc[1];
-	d3 = calc_ecc[2] ^ read_ecc[2];
+	/* Check for a single bit error */
+	if( ((s0 ^ (s0 >> 1)) & 0x55) == 0x55 &&
+	    ((s1 ^ (s1 >> 1)) & 0x55) == 0x55 &&
+	    ((s2 ^ (s2 >> 1)) & 0x54) == 0x54) {
 
-	if ((d1 | d2 | d3) == 0) {
-		/* No errors */
-		return 0;
-	}
-	else {
-		a = (d1 ^ (d1 >> 1)) & 0x55;
-		b = (d2 ^ (d2 >> 1)) & 0x55;
-		c = (d3 ^ (d3 >> 1)) & 0x54;
-
-		/* Found and will correct single bit error in the data */
-		if ((a == 0x55) && (b == 0x55) && (c == 0x54)) {
-			c = 0x80;
-			add = 0;
-			a = 0x80;
-			for (i=0; i<4; i++) {
-				if (d1 & c)
-					add |= a;
-				c >>= 2;
-				a >>= 1;
-			}
-			c = 0x80;
-			for (i=0; i<4; i++) {
-				if (d2 & c)
-					add |= a;
-				c >>= 2;
-				a >>= 1;
-			}
-			bit = 0;
-			b = 0x04;
-			c = 0x80;
-			for (i=0; i<3; i++) {
-				if (d3 & c)
-					bit |= b;
-				c >>= 2;
-				b >>= 1;
-			}
-			b = 0x01;
-			a = dat[add];
-			a ^= (b << bit);
-			dat[add] = a;
-			return 1;
-		} else {
-			i = 0;
-			while (d1) {
-				if (d1 & 0x01)
-					++i;
-				d1 >>= 1;
-			}
-			while (d2) {
-				if (d2 & 0x01)
-					++i;
-				d2 >>= 1;
-			}
-			while (d3) {
-				if (d3 & 0x01)
-					++i;
-				d3 >>= 1;
-			}
-			if (i == 1) {
-				/* ECC Code Error Correction */
-				read_ecc[0] = calc_ecc[0];
-				read_ecc[1] = calc_ecc[1];
-				read_ecc[2] = calc_ecc[2];
-				return 2;
-			}
-			else {
-				/* Uncorrectable Error */
-				return -1;
-			}
-		}
+		uint32_t byteoffs, bitnum;
+
+		byteoffs = (s1 << 0) & 0x80;
+		byteoffs |= (s1 << 1) & 0x40;
+		byteoffs |= (s1 << 2) & 0x20;
+		byteoffs |= (s1 << 3) & 0x10;
+
+		byteoffs |= (s0 >> 4) & 0x08;
+		byteoffs |= (s0 >> 3) & 0x04;
+		byteoffs |= (s0 >> 2) & 0x02;
+		byteoffs |= (s0 >> 1) & 0x01;
+
+		bitnum = (s2 >> 5) & 0x04;
+		bitnum |= (s2 >> 4) & 0x02;
+		bitnum |= (s2 >> 3) & 0x01;
+
+		dat[byteoffs] ^= (1 << bitnum);
+
+		return 1;
 	}
 
-	/* Should never happen */
+	if(countbits(s0 | ((uint32_t)s1 << 8) | ((uint32_t)s2 <<16)) == 1)
+		return 1;
+
 	return -1;
 }
 
-- 
cgit v1.1


From 91da09cfbce0c1de05d6d84aa8363d666fa7ea3c Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 15:15:12 +0200
Subject: NAND: Add hardware ECC support to the PPC4xx NAND driver ndfc.c

This patch adds hardware ECC support to the NDFC driver. It also
changes the register access from using the "simple" in32/out32
functions to the in_be32/out_be32 functions, which make sure
that the access is correctly synced. This is the only recommended
access to SoC registers in the current Linux kernel.

Signed-off-by: Stefan Roese <sr@denx.de>
---
 cpu/ppc4xx/ndfc.c | 74 ++++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 54 insertions(+), 20 deletions(-)

diff --git a/cpu/ppc4xx/ndfc.c b/cpu/ppc4xx/ndfc.c
index b198ff4..09aac38 100644
--- a/cpu/ppc4xx/ndfc.c
+++ b/cpu/ppc4xx/ndfc.c
@@ -3,7 +3,7 @@
  *   Platform independend driver for NDFC (NanD Flash Controller)
  *   integrated into EP440 cores
  *
- * (C) Copyright 2006
+ * (C) Copyright 2006-2007
  * Stefan Roese, DENX Software Engineering, sr@denx.de.
  *
  * Based on original work by
@@ -37,7 +37,9 @@
 
 #include <nand.h>
 #include <linux/mtd/ndfc.h>
+#include <linux/mtd/nand_ecc.h>
 #include <asm/processor.h>
+#include <asm/io.h>
 #include <ppc440.h>
 
 static u8 hwctl = 0;
@@ -69,11 +71,11 @@ static void ndfc_write_byte(struct mtd_info *mtdinfo, u_char byte)
 	ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
 
 	if (hwctl & 0x1)
-		out8(base + NDFC_CMD, byte);
+		out_8((u8 *)(base + NDFC_CMD), byte);
 	else if (hwctl & 0x2)
-		out8(base + NDFC_ALE, byte);
+		out_8((u8 *)(base + NDFC_ALE), byte);
 	else
-		out8(base + NDFC_DATA, byte);
+		out_8((u8 *)(base + NDFC_DATA), byte);
 }
 
 static u_char ndfc_read_byte(struct mtd_info *mtdinfo)
@@ -81,7 +83,7 @@ static u_char ndfc_read_byte(struct mtd_info *mtdinfo)
 	struct nand_chip *this = mtdinfo->priv;
 	ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
 
-	return (in8(base + NDFC_DATA));
+	return (in_8((u8 *)(base + NDFC_DATA)));
 }
 
 static int ndfc_dev_ready(struct mtd_info *mtdinfo)
@@ -89,17 +91,41 @@ static int ndfc_dev_ready(struct mtd_info *mtdinfo)
 	struct nand_chip *this = mtdinfo->priv;
 	ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
 
-	while (!(in32(base + NDFC_STAT) & NDFC_STAT_IS_READY))
+	while (!(in_be32((u32 *)(base + NDFC_STAT)) & NDFC_STAT_IS_READY))
 		;
 
 	return 1;
 }
 
-#ifndef CONFIG_NAND_SPL
-/*
- * Don't use these speedup functions in NAND boot image, since the image
- * has to fit into 4kByte.
- */
+static void ndfc_enable_hwecc(struct mtd_info *mtdinfo, int mode)
+{
+	struct nand_chip *this = mtdinfo->priv;
+	ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
+	u32 ccr;
+
+	ccr = in_be32((u32 *)(base + NDFC_CCR));
+	ccr |= NDFC_CCR_RESET_ECC;
+	out_be32((u32 *)(base + NDFC_CCR), ccr);
+}
+
+static int ndfc_calculate_ecc(struct mtd_info *mtdinfo,
+			      const u_char *dat, u_char *ecc_code)
+{
+	struct nand_chip *this = mtdinfo->priv;
+	ulong base = (ulong) this->IO_ADDR_W & 0xfffffffc;
+	u32 ecc;
+	u8 *p = (u8 *)&ecc;
+
+	ecc = in_be32((u32 *)(base + NDFC_ECC));
+
+	/* The NDFC uses Smart Media (SMC) bytes order
+	 */
+	ecc_code[0] = p[2];
+	ecc_code[1] = p[1];
+	ecc_code[2] = p[3];
+
+	return 0;
+}
 
 /*
  * Speedups for buffer read/write/verify
@@ -115,9 +141,14 @@ static void ndfc_read_buf(struct mtd_info *mtdinfo, uint8_t *buf, int len)
 	uint32_t *p = (uint32_t *) buf;
 
 	for (;len > 0; len -= 4)
-		*p++ = in32(base + NDFC_DATA);
+		*p++ = in_be32((u32 *)(base + NDFC_DATA));
 }
 
+#ifndef CONFIG_NAND_SPL
+/*
+ * Don't use these speedup functions in NAND boot image, since the image
+ * has to fit into 4kByte.
+ */
 static void ndfc_write_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len)
 {
 	struct nand_chip *this = mtdinfo->priv;
@@ -125,7 +156,7 @@ static void ndfc_write_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len
 	uint32_t *p = (uint32_t *) buf;
 
 	for (; len > 0; len -= 4)
-		out32(base + NDFC_DATA, *p++);
+		out_be32((u32 *)(base + NDFC_DATA), *p++);
 }
 
 static int ndfc_verify_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len)
@@ -135,7 +166,7 @@ static int ndfc_verify_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len
 	uint32_t *p = (uint32_t *) buf;
 
 	for (; len > 0; len -= 4)
-		if (*p++ != in32(base + NDFC_DATA))
+		if (*p++ != in_be32((u32 *)(base + NDFC_DATA)))
 			return -1;
 
 	return 0;
@@ -152,8 +183,8 @@ void board_nand_select_device(struct nand_chip *nand, int chip)
 	ulong base = (ulong)nand->IO_ADDR_W & 0xfffffffc;
 
 	/* Set NandFlash Core Configuration Register */
-	/* 1col x 2 rows */
-	out32(base + NDFC_CCR, 0x00000000 | (cs << 24));
+	/* 1 col x 2 rows */
+	out_be32((u32 *)(base + NDFC_CCR), 0x00000000 | (cs << 24));
 }
 
 int board_nand_init(struct nand_chip *nand)
@@ -161,16 +192,19 @@ int board_nand_init(struct nand_chip *nand)
 	int cs = (ulong)nand->IO_ADDR_W & 0x00000003;
 	ulong base = (ulong)nand->IO_ADDR_W & 0xfffffffc;
 
-	nand->eccmode = NAND_ECC_SOFT;
-
 	nand->hwcontrol  = ndfc_hwcontrol;
 	nand->read_byte  = ndfc_read_byte;
+	nand->read_buf   = ndfc_read_buf;
 	nand->write_byte = ndfc_write_byte;
 	nand->dev_ready  = ndfc_dev_ready;
 
+	nand->eccmode = NAND_ECC_HW3_256;
+	nand->enable_hwecc = ndfc_enable_hwecc;
+	nand->calculate_ecc = ndfc_calculate_ecc;
+	nand->correct_data = nand_correct_data;
+
 #ifndef CONFIG_NAND_SPL
 	nand->write_buf  = ndfc_write_buf;
-	nand->read_buf   = ndfc_read_buf;
 	nand->verify_buf = ndfc_verify_buf;
 #else
 	/*
@@ -187,7 +221,7 @@ int board_nand_init(struct nand_chip *nand)
 	 * Select required NAND chip in NDFC
 	 */
 	board_nand_select_device(nand, cs);
-	out32(base + NDFC_BCFG0 + (cs << 2), 0x80002222);
+	out_be32((u32 *)(base + NDFC_BCFG0 + (cs << 2)), 0x80002222);
 	return 0;
 }
 
-- 
cgit v1.1


From 53ad02103fb8be4138a9937a8ab91fcdff7b4987 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 15:16:58 +0200
Subject: ppc4xx: Update in_be32() functions and friends to latest Linux
 version

Signed-off-by: Stefan Roese <sr@denx.de>
---
 include/asm-ppc/io.h | 89 ++++++++++++++++++++++++++++++++--------------------
 1 file changed, 55 insertions(+), 34 deletions(-)

diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h
index bbc9ba0..03289bc 100644
--- a/include/asm-ppc/io.h
+++ b/include/asm-ppc/io.h
@@ -105,6 +105,11 @@ static inline void sync(void)
 	__asm__ __volatile__ ("sync" : : : "memory");
 }
 
+static inline void isync(void)
+{
+	__asm__ __volatile__ ("isync" : : : "memory");
+}
+
 /* Enforce in-order execution of data I/O.
  * No distinction between read/write on PPC; use eieio for all three.
  */
@@ -114,74 +119,90 @@ static inline void sync(void)
 
 /*
  * 8, 16 and 32 bit, big and little endian I/O operations, with barrier.
+ *
+ * Read operations have additional twi & isync to make sure the read
+ * is actually performed (i.e. the data has come back) before we start
+ * executing any following instructions.
  */
-extern inline int in_8(volatile u8 *addr)
+#define __iomem
+extern inline int in_8(const volatile unsigned char __iomem *addr)
 {
-    int ret;
+	int ret;
 
-    __asm__ __volatile__("lbz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
-    return ret;
+	__asm__ __volatile__(
+		"sync; lbz%U1%X1 %0,%1;\n"
+		"twi 0,%0,0;\n"
+		"isync" : "=r" (ret) : "m" (*addr));
+	return ret;
 }
 
-extern inline void out_8(volatile u8 *addr, int val)
+extern inline void out_8(volatile unsigned char __iomem *addr, int val)
 {
-    __asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
+	__asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
 }
 
-extern inline int in_le16(volatile u16 *addr)
+extern inline int in_le16(const volatile unsigned short __iomem *addr)
 {
-    int ret;
+	int ret;
 
-    __asm__ __volatile__("lhbrx %0,0,%1; eieio" : "=r" (ret) :
-		  "r" (addr), "m" (*addr));
-    return ret;
+	__asm__ __volatile__("sync; lhbrx %0,0,%1;\n"
+			     "twi 0,%0,0;\n"
+			     "isync" : "=r" (ret) :
+			      "r" (addr), "m" (*addr));
+	return ret;
 }
 
-extern inline int in_be16(volatile u16 *addr)
+extern inline int in_be16(const volatile unsigned short __iomem *addr)
 {
-    int ret;
+	int ret;
 
-    __asm__ __volatile__("lhz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
-    return ret;
+	__asm__ __volatile__("sync; lhz%U1%X1 %0,%1;\n"
+			     "twi 0,%0,0;\n"
+			     "isync" : "=r" (ret) : "m" (*addr));
+	return ret;
 }
 
-extern inline void out_le16(volatile u16 *addr, int val)
+extern inline void out_le16(volatile unsigned short __iomem *addr, int val)
 {
-    __asm__ __volatile__("sthbrx %1,0,%2; eieio" : "=m" (*addr) :
-		  "r" (val), "r" (addr));
+	__asm__ __volatile__("sync; sthbrx %1,0,%2" : "=m" (*addr) :
+			      "r" (val), "r" (addr));
 }
 
-extern inline void out_be16(volatile u16 *addr, int val)
+extern inline void out_be16(volatile unsigned short __iomem *addr, int val)
 {
-    __asm__ __volatile__("sth%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
+	__asm__ __volatile__("sync; sth%U0%X0 %1,%0" : "=m" (*addr) : "r" (val));
 }
 
-extern inline unsigned in_le32(volatile u32 *addr)
+extern inline unsigned in_le32(const volatile unsigned __iomem *addr)
 {
-    unsigned ret;
+	unsigned ret;
 
-    __asm__ __volatile__("lwbrx %0,0,%1; eieio" : "=r" (ret) :
-		 "r" (addr), "m" (*addr));
-    return ret;
+	__asm__ __volatile__("sync; lwbrx %0,0,%1;\n"
+			     "twi 0,%0,0;\n"
+			     "isync" : "=r" (ret) :
+			     "r" (addr), "m" (*addr));
+	return ret;
 }
 
-extern inline unsigned in_be32(volatile u32 *addr)
+extern inline unsigned in_be32(const volatile unsigned __iomem *addr)
 {
-    unsigned ret;
+	unsigned ret;
 
-    __asm__ __volatile__("lwz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
-    return ret;
+	__asm__ __volatile__("sync; lwz%U1%X1 %0,%1;\n"
+			     "twi 0,%0,0;\n"
+			     "isync" : "=r" (ret) : "m" (*addr));
+	return ret;
 }
 
-extern inline void out_le32(volatile unsigned *addr, int val)
+extern inline void out_le32(volatile unsigned __iomem *addr, int val)
 {
-    __asm__ __volatile__("stwbrx %1,0,%2; eieio" : "=m" (*addr) :
-		 "r" (val), "r" (addr));
+	__asm__ __volatile__("sync; stwbrx %1,0,%2" : "=m" (*addr) :
+			     "r" (val), "r" (addr));
 }
 
-extern inline void out_be32(volatile unsigned *addr, int val)
+extern inline void out_be32(volatile unsigned __iomem *addr, int val)
 {
-    __asm__ __volatile__("stw%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
+	__asm__ __volatile__("sync; stw%U0%X0 %1,%0" : "=m" (*addr) : "r" (val));
 }
 
 #endif
-- 
cgit v1.1


From a471db07fbb65a841ffc9f4f112562b945230f98 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 15:19:29 +0200
Subject: ppc4xx: Prepare Bamboo port for NAND booting support

This patch updates the "normal" Bamboo NOR booting port, so
that it is compatible with the coming soon NAND booting
Bamboo port.

It also enables the 2nd NAND flash on the Bamboo.

Signed-off-by: Stefan Roese <sr@denx.de>
---
 board/amcc/bamboo/Makefile  |   4 +-
 board/amcc/bamboo/bamboo.c  |  29 +++++--
 board/amcc/bamboo/config.mk |   6 +-
 board/amcc/bamboo/flash.c   |   6 +-
 board/amcc/bamboo/init.S    | 183 +++++++++++++++++++++-----------------------
 5 files changed, 119 insertions(+), 109 deletions(-)

diff --git a/board/amcc/bamboo/Makefile b/board/amcc/bamboo/Makefile
index 5da96e9..d01cc49 100644
--- a/board/amcc/bamboo/Makefile
+++ b/board/amcc/bamboo/Makefile
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2002-2006
+# (C) Copyright 2002-2007
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -33,7 +33,7 @@ OBJS	:= $(addprefix $(obj),$(COBJS))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
 $(LIB):	$(OBJS) $(SOBJS)
-	$(AR) $(ARFLAGS) $@ $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
 
 clean:
 	rm -f $(SOBJS) $(OBJS)
diff --git a/board/amcc/bamboo/bamboo.c b/board/amcc/bamboo/bamboo.c
index 6260b01..2e651df 100644
--- a/board/amcc/bamboo/bamboo.c
+++ b/board/amcc/bamboo/bamboo.c
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2005
+ * (C) Copyright 2005-2007
  * Stefan Roese, DENX Software Engineering, sr@denx.de.
  *
  * See file CREDITS for list of people who contributed to this
@@ -291,6 +291,7 @@ int checkboard(void)
 	return (0);
 }
 
+#if !(defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL))
 /*************************************************************************
  *
  * init_spd_array -- Bamboo has one bank onboard sdram (plus DIMM)
@@ -345,10 +346,12 @@ static void init_spd_array(void)
 	cfg_simulate_spd_eeprom[25]    = 0x00;    /* SDRAM Cycle Time (cas latency 1.5) = N.A */
 	cfg_simulate_spd_eeprom[12]    = 0x82;    /* refresh Rate Type: Normal (15.625us) + Self refresh */
 }
+#endif
 
 long int initdram (int board_type)
 {
-	long dram_size = 0;
+#if !(defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL))
+	long dram_size;
 
 	/*
 	 * First write simulated values in eeprom array for onboard bank 0
@@ -358,6 +361,9 @@ long int initdram (int board_type)
 	dram_size = spd_sdram();
 
 	return dram_size;
+#else
+	return CFG_MBYTES_SDRAM << 20;
+#endif
 }
 
 #if defined(CFG_DRAM_TEST)
@@ -881,11 +887,11 @@ void ext_bus_cntlr_init(void)
 		/*------------------------------------------------------------------------- */
 	case BOOT_FROM_NAND_FLASH0:
 		/*------------------------------------------------------------------------- */
-		ebc0_cs0_bnap_value = 0;
-		ebc0_cs0_bncr_value = 0;
+		ebc0_cs0_bnap_value = EBC0_BNAP_NAND_FLASH;
+		ebc0_cs0_bncr_value = EBC0_BNCR_NAND_FLASH_CS1;
 
-		ebc0_cs1_bnap_value = EBC0_BNAP_NAND_FLASH;
-		ebc0_cs1_bncr_value = EBC0_BNCR_NAND_FLASH_CS1;
+		ebc0_cs1_bnap_value = 0;
+		ebc0_cs1_bncr_value = 0;
 		ebc0_cs2_bnap_value = 0;
 		ebc0_cs2_bncr_value = 0;
 		ebc0_cs3_bnap_value = 0;
@@ -1409,10 +1415,10 @@ void update_ndfc_ios(void)
 	gpio_tab[GPIO0][6].in_out = GPIO_OUT;	    /* EBC_CS_N(1) */
 	gpio_tab[GPIO0][6].alt_nb = GPIO_ALT1;
 
-#if 0
 	gpio_tab[GPIO0][7].in_out = GPIO_OUT;	    /* EBC_CS_N(2) */
 	gpio_tab[GPIO0][7].alt_nb = GPIO_ALT1;
 
+#if 0
 	gpio_tab[GPIO0][7].in_out = GPIO_OUT;	    /* EBC_CS_N(3) */
 	gpio_tab[GPIO0][7].alt_nb = GPIO_ALT1;
 #endif
@@ -1900,12 +1906,21 @@ void configure_ppc440ep_pins(void)
 	{
 		update_ndfc_ios();
 
+#if !(defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL))
 		mtsdr(sdr_cust0, SDR0_CUST0_MUX_NDFC_SEL   |
 		      SDR0_CUST0_NDFC_ENABLE	|
 		      SDR0_CUST0_NDFC_BW_8_BIT	|
 		      SDR0_CUST0_NDFC_ARE_MASK	|
 		      SDR0_CUST0_CHIPSELGAT_EN1 |
 		      SDR0_CUST0_CHIPSELGAT_EN2);
+#else
+		mtsdr(sdr_cust0, SDR0_CUST0_MUX_NDFC_SEL   |
+		      SDR0_CUST0_NDFC_ENABLE	|
+		      SDR0_CUST0_NDFC_BW_8_BIT	|
+		      SDR0_CUST0_NDFC_ARE_MASK	|
+		      SDR0_CUST0_CHIPSELGAT_EN0 |
+		      SDR0_CUST0_CHIPSELGAT_EN2);
+#endif
 
 		ndfc_selection_in_fpga();
 	}
diff --git a/board/amcc/bamboo/config.mk b/board/amcc/bamboo/config.mk
index 9d7f4c3..b46527d 100644
--- a/board/amcc/bamboo/config.mk
+++ b/board/amcc/bamboo/config.mk
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2002-2006
+# (C) Copyright 2002-2007
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -21,7 +21,11 @@
 # MA 02111-1307 USA
 #
 
+sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp
+
+ifndef TEXT_BASE
 TEXT_BASE = 0xFFFA0000
+endif
 
 PLATFORM_CPPFLAGS += -DCONFIG_440=1
 
diff --git a/board/amcc/bamboo/flash.c b/board/amcc/bamboo/flash.c
index a30ab7a..8a2e832 100644
--- a/board/amcc/bamboo/flash.c
+++ b/board/amcc/bamboo/flash.c
@@ -53,7 +53,7 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips        */
 static unsigned long flash_addr_table[][CFG_MAX_FLASH_BANKS] = {
 	{0x87800001, 0xFFF00000, 0xFFF80000}, /* 0:boot from small flash */
 	{0x00000000, 0x00000000, 0x00000000}, /* 1:boot from pci 66      */
-	{0x00000000, 0x00000000, 0x00000000}, /* 2:boot from nand flash  */
+	{0x87800001, 0x00000000, 0x00000000}, /* 0:boot from nand flash  */
 	{0x87F00000, 0x87F80000, 0xFFC00001}, /* 3:boot from big flash 33*/
 	{0x87F00000, 0x87F80000, 0xFFC00001}, /* 4:boot from big flash 66*/
 	{0x00000000, 0x00000000, 0x00000000}, /* 5:boot from             */
@@ -134,10 +134,10 @@ unsigned long flash_init(void)
 		flash_info[i].size = 0;
 
 		/* check whether the address is 0 */
-		if (flash_addr_table[index][i] == 0) {
+		if (flash_addr_table[index][i] == 0)
 			continue;
-		}
 
+		DEBUGF("Detection bank %d...\n", i);
 		/* call flash_get_size() to initialize sector address */
 		size_b[i] = flash_get_size((vu_long *) flash_addr_table[index][i],
 				   &flash_info[i]);
diff --git a/board/amcc/bamboo/init.S b/board/amcc/bamboo/init.S
index 7820107..1459eec 100644
--- a/board/amcc/bamboo/init.S
+++ b/board/amcc/bamboo/init.S
@@ -1,74 +1,31 @@
 /*
-*
-* See file CREDITS for list of people who contributed to this
-* project.
-*
-* This program is free software; you can redistribute it and/or
-* modify it under the terms of the GNU General Public License as
-* published by the Free Software Foundation; either version 2 of
-* the License, or (at your option) any later version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program; if not, write to the Free Software
-* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-* MA 02111-1307 USA
-*/
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ *  Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
 
 #include <ppc_asm.tmpl>
 #include <config.h>
-
-/* General */
-#define TLB_VALID   0x00000200
-
-/* Supported page sizes */
-
-#define SZ_1K	    0x00000000
-#define SZ_4K	    0x00000010
-#define SZ_16K	    0x00000020
-#define SZ_64K	    0x00000030
-#define SZ_256K	    0x00000040
-#define SZ_1M	    0x00000050
-#define SZ_8M       0x00000060
-#define SZ_16M	    0x00000070
-#define SZ_256M	    0x00000090
-
-/* Storage attributes */
-#define SA_W	    0x00000800	    /* Write-through */
-#define SA_I	    0x00000400	    /* Caching inhibited */
-#define SA_M	    0x00000200	    /* Memory coherence */
-#define SA_G	    0x00000100	    /* Guarded */
-#define SA_E	    0x00000080	    /* Endian */
-
-/* Access control */
-#define AC_X	    0x00000024	    /* Execute */
-#define AC_W	    0x00000012	    /* Write */
-#define AC_R	    0x00000009	    /* Read */
-
-/* Some handy macros */
-
-#define EPN(e)		((e) & 0xfffffc00)
-#define TLB0(epn,sz)	( (EPN((epn)) | (sz) | TLB_VALID ) )
-#define TLB1(rpn,erpn)	( ((rpn)&0xfffffc00) | (erpn) )
-#define TLB2(a)		( (a)&0x00000fbf )
-
-#define tlbtab_start\
-	mflr    r1  ;\
-	bl 0f	    ;
-
-#define tlbtab_end\
-	.long 0, 0, 0	;   \
-0:	mflr    r0	;   \
-	mtlr    r1	;   \
-	blr		;
-
-#define tlbentry(epn,sz,rpn,erpn,attr)\
-	.long TLB0(epn,sz),TLB1(rpn,erpn),TLB2(attr)
-
+#include <asm-ppc/mmu.h>
 
 /**************************************************************************
  * TLB TABLE
@@ -80,34 +37,68 @@
  *  Pointer to the table is returned in r1
  *
  *************************************************************************/
-
-    .section .bootpg,"ax"
-    .globl tlbtab
+	.section .bootpg,"ax"
+	.globl tlbtab
 
 tlbtab:
-    tlbtab_start
-
-    /*
-     * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the
-     * speed up boot process. It is patched after relocation to enable SA_I
-     */
-    tlbentry( CFG_BOOT_BASE_ADDR, SZ_256M, CFG_BOOT_BASE_ADDR, 0, AC_R|AC_W|AC_X|SA_G/*|SA_I*/)
-
-    /* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
-    tlbentry( CFG_INIT_RAM_ADDR, SZ_64K, CFG_INIT_RAM_ADDR, 0, AC_R|AC_W|AC_X|SA_G )
-
-    tlbentry( CFG_SDRAM_BASE, SZ_256M, CFG_SDRAM_BASE, 0, AC_R|AC_W|AC_X|SA_G|SA_I )
-    tlbentry( CFG_PCI_BASE, SZ_256M, CFG_PCI_BASE, 0, AC_R|AC_W|SA_G|SA_I )
-    tlbentry( CFG_NVRAM_BASE_ADDR, SZ_256M, CFG_NVRAM_BASE_ADDR, 0, AC_R|AC_W|AC_X|SA_W|SA_I )
-    tlbentry( CFG_NAND_ADDR, SZ_256M, CFG_NAND_ADDR, 0, AC_R|AC_W|AC_X|SA_W|SA_I )
-
-    /* PCI */
-    tlbentry( CFG_PCI_MEMBASE, SZ_256M, CFG_PCI_MEMBASE, 0, AC_R|AC_W|SA_G|SA_I )
-    tlbentry( CFG_PCI_MEMBASE1, SZ_256M, CFG_PCI_MEMBASE1, 0, AC_R|AC_W|SA_G|SA_I )
-    tlbentry( CFG_PCI_MEMBASE2, SZ_256M, CFG_PCI_MEMBASE2, 0, AC_R|AC_W|SA_G|SA_I )
-    tlbentry( CFG_PCI_MEMBASE3, SZ_256M, CFG_PCI_MEMBASE3, 0, AC_R|AC_W|SA_G|SA_I )
-
-    /* USB 2.0 Device */
-    tlbentry( CFG_USB_DEVICE, SZ_1K, CFG_USB_DEVICE, 0, AC_R|AC_W|SA_G|SA_I )
-
-    tlbtab_end
+	tlbtab_start
+
+	/*
+	 * BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the
+	 * speed up boot process. It is patched after relocation to enable SA_I
+	 */
+#ifndef CONFIG_NAND_SPL
+	tlbentry(CFG_BOOT_BASE_ADDR, SZ_256M, CFG_BOOT_BASE_ADDR, 0, AC_R|AC_W|AC_X|SA_G)
+#else
+	tlbentry(CFG_NAND_BOOT_SPL_SRC, SZ_4K, CFG_NAND_BOOT_SPL_SRC, 0, AC_R|AC_W|AC_X|SA_G)
+#endif
+
+	/* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
+	tlbentry(CFG_INIT_RAM_ADDR, SZ_4K, CFG_INIT_RAM_ADDR, 0, AC_R|AC_W|AC_X|SA_G)
+
+	tlbentry(CFG_SDRAM_BASE, SZ_256M, CFG_SDRAM_BASE, 0, AC_R|AC_W|AC_X|SA_G|SA_I)
+
+	/* PCI base & peripherals */
+	tlbentry(CFG_PCI_BASE, SZ_256M, CFG_PCI_BASE, 0, AC_R|AC_W|SA_G|SA_I)
+
+	tlbentry(CFG_NVRAM_BASE_ADDR, SZ_256M, CFG_NVRAM_BASE_ADDR, 0, AC_R|AC_W|AC_X|SA_W|SA_I)
+	tlbentry(CFG_NAND_ADDR, SZ_4K, CFG_NAND_ADDR, 0, AC_R|AC_W|AC_X|SA_W|SA_I)
+
+	/* PCI */
+	tlbentry(CFG_PCI_MEMBASE, SZ_256M, CFG_PCI_MEMBASE, 0, AC_R|AC_W|SA_G|SA_I)
+	tlbentry(CFG_PCI_MEMBASE1, SZ_256M, CFG_PCI_MEMBASE1, 0, AC_R|AC_W|SA_G|SA_I)
+	tlbentry(CFG_PCI_MEMBASE2, SZ_256M, CFG_PCI_MEMBASE2, 0, AC_R|AC_W|SA_G|SA_I)
+	tlbentry(CFG_PCI_MEMBASE3, SZ_256M, CFG_PCI_MEMBASE3, 0, AC_R|AC_W|SA_G|SA_I)
+
+	/* USB 2.0 Device */
+	tlbentry(CFG_USB_DEVICE, SZ_1K, CFG_USB_DEVICE, 0, AC_R|AC_W|SA_G|SA_I)
+
+	tlbtab_end
+
+#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
+	/*
+	 * For NAND booting the first TLB has to be reconfigured to full size
+	 * and with caching disabled after running from RAM!
+	 */
+#define TLB00	TLB0(CFG_BOOT_BASE_ADDR, SZ_256M)
+#define TLB01	TLB1(CFG_BOOT_BASE_ADDR, 0)
+#define TLB02	TLB2(AC_R|AC_W|AC_X|SA_G|SA_I)
+
+	.globl	reconfig_tlb0
+reconfig_tlb0:
+	sync
+	isync
+	addi	r4,r0,0x0000		/* TLB entry #0 */
+	lis	r5,TLB00@h
+	ori	r5,r5,TLB00@l
+	tlbwe	r5,r4,0x0000		/* Save it out */
+	lis	r5,TLB01@h
+	ori	r5,r5,TLB01@l
+	tlbwe	r5,r4,0x0001		/* Save it out */
+	lis	r5,TLB02@h
+	ori	r5,r5,TLB02@l
+	tlbwe	r5,r4,0x0002		/* Save it out */
+	sync
+	isync
+	blr
+#endif
-- 
cgit v1.1


From 42be56f53c8b107868e6125c8524ae84293e95a7 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 15:23:04 +0200
Subject: NAND: Add ECC support to NAND booting support in nand_spl/nand_boot.c

The U-Boot NAND booting support is now extended to support ECC
upon loading of the NAND U-Boot image.

Tested on AMCC Sequoia (440EPx) and Bamboo (440EP).

Signed-off-by: Stefan Roese <sr@denx.de>
---
 nand_spl/nand_boot.c | 95 +++++++++++++++++++++++++++++++---------------------
 1 file changed, 56 insertions(+), 39 deletions(-)

diff --git a/nand_spl/nand_boot.c b/nand_spl/nand_boot.c
index a136fb7..840a596 100644
--- a/nand_spl/nand_boot.c
+++ b/nand_spl/nand_boot.c
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2006
+ * (C) Copyright 2006-2007
  * Stefan Roese, DENX Software Engineering, sr@denx.de.
  *
  * This program is free software; you can redistribute it and/or
@@ -24,27 +24,28 @@
 #define CFG_NAND_READ_DELAY \
 	{ volatile int dummy; int i; for (i=0; i<10000; i++) dummy = i; }
 
+static int nand_ecc_pos[] = CFG_NAND_ECCPOS;
+
 extern void board_nand_init(struct nand_chip *nand);
-extern void ndfc_hwcontrol(struct mtd_info *mtdinfo, int cmd);
-extern void ndfc_write_byte(struct mtd_info *mtdinfo, u_char byte);
-extern u_char ndfc_read_byte(struct mtd_info *mtdinfo);
-extern int ndfc_dev_ready(struct mtd_info *mtdinfo);
-extern int jump_to_ram(ulong delta);
-extern int jump_to_uboot(ulong addr);
 
-static int nand_is_bad_block(struct mtd_info *mtd, int block)
+static int nand_command(struct mtd_info *mtd, int block, int page, int offs, u8 cmd)
 {
 	struct nand_chip *this = mtd->priv;
-	int page_addr = block * CFG_NAND_PAGE_COUNT;
+	int page_addr = page + block * CFG_NAND_PAGE_COUNT;
+
+	if (this->dev_ready)
+		this->dev_ready(mtd);
+	else
+		CFG_NAND_READ_DELAY;
 
 	/* Begin command latch cycle */
 	this->hwcontrol(mtd, NAND_CTL_SETCLE);
-	this->write_byte(mtd, NAND_CMD_READOOB);
+	this->write_byte(mtd, cmd);
 	/* Set ALE and clear CLE to start address cycle */
 	this->hwcontrol(mtd, NAND_CTL_CLRCLE);
 	this->hwcontrol(mtd, NAND_CTL_SETALE);
 	/* Column address */
-	this->write_byte(mtd, CFG_NAND_BAD_BLOCK_POS);			/* A[7:0] */
+	this->write_byte(mtd, offs);					/* A[7:0] */
 	this->write_byte(mtd, (uchar)(page_addr & 0xff));		/* A[16:9] */
 	this->write_byte(mtd, (uchar)((page_addr >> 8) & 0xff));	/* A[24:17] */
 #ifdef CFG_NAND_4_ADDR_CYCLE
@@ -62,6 +63,15 @@ static int nand_is_bad_block(struct mtd_info *mtd, int block)
 	else
 		CFG_NAND_READ_DELAY;
 
+	return 0;
+}
+
+static int nand_is_bad_block(struct mtd_info *mtd, int block)
+{
+	struct nand_chip *this = mtd->priv;
+
+	nand_command(mtd, block, 0, CFG_NAND_BAD_BLOCK_POS, NAND_CMD_READOOB);
+
 	/*
 	 * Read on byte
 	 */
@@ -74,39 +84,46 @@ static int nand_is_bad_block(struct mtd_info *mtd, int block)
 static int nand_read_page(struct mtd_info *mtd, int block, int page, uchar *dst)
 {
 	struct nand_chip *this = mtd->priv;
-	int page_addr = page + block * CFG_NAND_PAGE_COUNT;
+	u_char *ecc_calc;
+	u_char *ecc_code;
+	u_char *oob_data;
 	int i;
+	int eccsize = CFG_NAND_ECCSIZE;
+	int eccbytes = CFG_NAND_ECCBYTES;
+	int eccsteps = CFG_NAND_ECCSTEPS;
+	uint8_t *p = dst;
+	int stat;
 
-	/* Begin command latch cycle */
-	this->hwcontrol(mtd, NAND_CTL_SETCLE);
-	this->write_byte(mtd, NAND_CMD_READ0);
-	/* Set ALE and clear CLE to start address cycle */
-	this->hwcontrol(mtd, NAND_CTL_CLRCLE);
-	this->hwcontrol(mtd, NAND_CTL_SETALE);
-	/* Column address */
-	this->write_byte(mtd, 0);					/* A[7:0] */
-	this->write_byte(mtd, (uchar)(page_addr & 0xff));		/* A[16:9] */
-	this->write_byte(mtd, (uchar)((page_addr >> 8) & 0xff));	/* A[24:17] */
-#ifdef CFG_NAND_4_ADDR_CYCLE
-	/* One more address cycle for devices > 32MiB */
-	this->write_byte(mtd, (uchar)((page_addr >> 16) & 0x0f));	/* A[xx:25] */
-#endif
-	/* Latch in address */
-	this->hwcontrol(mtd, NAND_CTL_CLRALE);
+	nand_command(mtd, block, page, 0, NAND_CMD_READ0);
 
-	/*
-	 * Wait a while for the data to be ready
+	/* No malloc available for now, just use some temporary locations
+	 * in SDRAM
 	 */
-	if (this->dev_ready)
-		this->dev_ready(mtd);
-	else
-		CFG_NAND_READ_DELAY;
+	ecc_calc = (u_char *)(CFG_SDRAM_BASE + 0x10000);
+	ecc_code = ecc_calc + 0x100;
+	oob_data = ecc_calc + 0x200;
+
+	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
+		this->enable_hwecc(mtd, NAND_ECC_READ);
+		this->read_buf(mtd, p, eccsize);
+		this->calculate_ecc(mtd, p, &ecc_calc[i]);
+	}
+	this->read_buf(mtd, oob_data, CFG_NAND_OOBSIZE);
 
-	/*
-	 * Read page into buffer
-	 */
-	for (i=0; i<CFG_NAND_PAGE_SIZE; i++)
-		*dst++ = this->read_byte(mtd);
+	/* Pick the ECC bytes out of the oob data */
+	for (i = 0; i < CFG_NAND_ECCTOTAL; i++)
+		ecc_code[i] = oob_data[nand_ecc_pos[i]];
+
+	eccsteps = CFG_NAND_ECCSTEPS;
+	p = dst;
+
+	for (i = 0 ; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
+		/* No chance to do something with the possible error message
+		 * from correct_data(). We just hope that all possible errors
+		 * are corrected by this routine.
+		 */
+		stat = this->correct_data(mtd, p, &ecc_code[i], &ecc_calc[i]);
+	}
 
 	return 0;
 }
-- 
cgit v1.1


From cf959c7d6687567c308e366e9581e1a5aff5cc5b Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 15:27:11 +0200
Subject: ppc4xx: Add NAND booting support for AMCC Bamboo (440EP) eval board

This patch adds NAND booting support for the AMCC Bamboo eval board.
Since the NAND-SPL boot image is limited to 4kbytes, this version
only supports the onboard 64MBytes of DDR. The DIMM modules can't be
supported, since the setup code for I2C DIMM autodetection and
configuration is too big for this NAND bootloader.

Signed-off-by: Stefan Roese <sr@denx.de>
---
 MAKEALL                               |  30 ++---
 Makefile                              |  10 ++
 cpu/ppc4xx/start.S                    | 221 ++++++++++++++++++++--------------
 include/configs/bamboo.h              |  88 ++++++++++++--
 nand_spl/board/amcc/bamboo/Makefile   | 100 +++++++++++++++
 nand_spl/board/amcc/bamboo/config.mk  |  49 ++++++++
 nand_spl/board/amcc/bamboo/sdram.c    |  92 ++++++++++++++
 nand_spl/board/amcc/bamboo/u-boot.lds |  65 ++++++++++
 8 files changed, 536 insertions(+), 119 deletions(-)
 create mode 100644 nand_spl/board/amcc/bamboo/Makefile
 create mode 100644 nand_spl/board/amcc/bamboo/config.mk
 create mode 100644 nand_spl/board/amcc/bamboo/sdram.c
 create mode 100644 nand_spl/board/amcc/bamboo/u-boot.lds

diff --git a/MAKEALL b/MAKEALL
index 47f2030..23402a2 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -76,21 +76,21 @@ LIST_8xx="	\
 
 LIST_4xx="	\
 	acadia		ADCIOP		alpr		AP1000		\
-	AR405		ASH405		bamboo		bubinga		\
-	CANBT		CMS700		CPCI2DP		CPCI405		\
-	CPCI4052	CPCI405AB	CPCI405DT	CPCI440		\
-	CPCIISER4	CRAYL1		csb272		csb472		\
-	DASA_SIM	DP405		DU405		ebony		\
-	ERIC		EXBITGEN	G2000		HH405		\
-	HUB405		JSE		KAREF		katmai		\
-	luan		METROBOX	MIP405		MIP405T		\
-	ML2		ml300		ocotea		OCRTC		\
-	ORSG		p3p440		PCI405		pcs440ep	\
-	PIP405		PLU405		PMC405		PPChameleonEVB	\
-	sbc405		sc3		sequoia		sequoia_nand	\
-	taishan		VOH405		VOM405		W7OLMC		\
-	W7OLMG		walnut		WUH405		XPEDITE1K	\
-	yellowstone	yosemite	yucca				\
+	AR405		ASH405		bamboo		bamboo_nand	\
+	bubinga		CANBT		CMS700		CPCI2DP		\
+	CPCI405		CPCI4052	CPCI405AB	CPCI405DT	\
+	CPCI440		CPCIISER4	CRAYL1		csb272		\
+	csb472		DASA_SIM	DP405		DU405		\
+	ebony		ERIC		EXBITGEN	G2000		\
+	HH405		HUB405		JSE		KAREF		\
+	katmai		luan		METROBOX	MIP405		\
+	MIP405T		ML2		ml300		ocotea		\
+	OCRTC		ORSG		p3p440		PCI405		\
+	pcs440ep	PIP405		PLU405		PMC405		\
+	PPChameleonEVB	sbc405		sc3		sequoia		\
+	sequoia_nand	taishan		VOH405		VOM405		\
+	W7OLMC		W7OLMG		walnut		WUH405		\
+	XPEDITE1K	yellowstone	yosemite	yucca		\
 "
 
 #########################################################################
diff --git a/Makefile b/Makefile
index 8e551eb..99f38af 100644
--- a/Makefile
+++ b/Makefile
@@ -1035,6 +1035,16 @@ ASH405_config:	unconfig
 bamboo_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) ppc ppc4xx bamboo amcc
 
+bamboo_nand_config:	unconfig
+	@mkdir -p $(obj)include
+	@mkdir -p $(obj)nand_spl
+	@mkdir -p $(obj)board/amcc/bamboo
+	@echo "#define CONFIG_NAND_U_BOOT" > $(obj)include/config.h
+	@echo "Compile NAND boot image for bamboo"
+	@$(MKCONFIG) -a bamboo ppc ppc4xx bamboo amcc
+	@echo "TEXT_BASE = 0x01000000" > $(obj)board/amcc/bamboo/config.tmp
+	@echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mk
+
 bubinga_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) ppc ppc4xx bubinga amcc
 
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 3b1586c..fe14ecd 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -110,6 +110,13 @@
 # endif
 #endif /* CFG_INIT_DCACHE_CS */
 
+#define function_prolog(func_name)      .text; \
+					.align 2; \
+					.globl func_name; \
+					func_name:
+#define function_epilog(func_name)      .type func_name,@function; \
+					.size func_name,.-func_name
+
 /* We don't want the  MMU yet.
 */
 #undef	MSR_KERNEL
@@ -388,8 +395,9 @@ rsttlb:	tlbwe	r0,r1,0x0000	/* Invalidate all entries (V=0)*/
 2:
 
 #if defined(CONFIG_NAND_SPL)
+#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
 	/*
-	 * Enable internal SRAM
+	 * Enable internal SRAM (only on 440EPx/GRx, 440EP/GR have no OCM)
 	 */
 	lis	r2,0x7fff
 	ori	r2,r2,0xffff
@@ -399,6 +407,45 @@ rsttlb:	tlbwe	r0,r1,0x0000	/* Invalidate all entries (V=0)*/
 	mfdcr	r1,isram0_pmeg
 	and	r1,r1,r2		/* Disable pwr mgmt */
 	mtdcr	isram0_pmeg,r1
+#endif
+#if defined(CONFIG_440EP)
+	/*
+	 * On 440EP with no internal SRAM, we setup SDRAM very early
+	 * and copy the NAND_SPL to SDRAM and jump to it
+	 */
+	/* Clear Dcache to use as RAM */
+	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_ran3
+	addi	r5,r5,0x0001
+..d_ran3:
+	mtctr	r5
+..d_ag3:
+	dcbz	r0,r3
+	addi	r3,r3,32
+	bdnz	..d_ag3
+	/*----------------------------------------------------------------*/
+	/* Setup the stack in internal SRAM */
+	/*----------------------------------------------------------------*/
+	lis	r1,CFG_INIT_RAM_ADDR@h
+	ori	r1,r1,CFG_INIT_SP_OFFSET@l
+	li	r0,0
+	stwu	r0,-4(r1)
+	stwu	r0,-4(r1)		/* Terminate call chain */
+
+	stwu	r1,-8(r1)		/* Save back chain and move SP */
+	lis	r0,RESET_VECTOR@h	/* Address of reset vector */
+	ori	r0,r0, RESET_VECTOR@l
+	stwu	r1,-8(r1)		/* Save back chain and move SP */
+	stw	r0,+12(r1)		/* Save return addr (underflow vect) */
+	sync
+	bl	early_sdram_init
+	sync
+#endif /* CONFIG_440EP */
 
 	/*
 	 * Copy SPL from cache into internal SRAM
@@ -429,7 +476,7 @@ spl_loop:
 start_ram:
 	sync
 	isync
-#endif
+#endif /* CONFIG_NAND_SPL */
 
 	bl	3f
 	b	_start
@@ -1137,7 +1184,6 @@ crit_return:
 	lwz	r1,GPR1(r1)
 	SYNC
 	rfci
-#endif /* CONFIG_NAND_SPL */
 
 /* Cache functions.
 */
@@ -1255,24 +1301,6 @@ wr_tcr:
 	blr
 
 /*------------------------------------------------------------------------------- */
-/* Function:	 in8 */
-/* Description:	 Input 8 bits */
-/*------------------------------------------------------------------------------- */
-	.globl	in8
-in8:
-	lbz	r3,0x0000(r3)
-	blr
-
-/*------------------------------------------------------------------------------- */
-/* Function:	 out8 */
-/* Description:	 Output 8 bits */
-/*------------------------------------------------------------------------------- */
-	.globl	out8
-out8:
-	stb	r4,0x0000(r3)
-	blr
-
-/*------------------------------------------------------------------------------- */
 /* Function:	 out16 */
 /* Description:	 Output 16 bits */
 /*------------------------------------------------------------------------------- */
@@ -1291,15 +1319,6 @@ out16r:
 	blr
 
 /*------------------------------------------------------------------------------- */
-/* Function:	 out32 */
-/* Description:	 Output 32 bits */
-/*------------------------------------------------------------------------------- */
-	.globl	out32
-out32:
-	stw	r4,0x0000(r3)
-	blr
-
-/*------------------------------------------------------------------------------- */
 /* Function:	 out32r */
 /* Description:	 Byte reverse and output 32 bits */
 /*------------------------------------------------------------------------------- */
@@ -1327,15 +1346,6 @@ in16r:
 	blr
 
 /*------------------------------------------------------------------------------- */
-/* Function:	 in32 */
-/* Description:	 Input 32 bits */
-/*------------------------------------------------------------------------------- */
-	.globl	in32
-in32:
-	lwz	3,0x0000(3)
-	blr
-
-/*------------------------------------------------------------------------------- */
 /* Function:	 in32r */
 /* Description:	 Input 32 bits and byte reverse */
 /*------------------------------------------------------------------------------- */
@@ -1377,9 +1387,6 @@ ppcSync:
 	sync
 	blr
 
-/*------------------------------------------------------------------------------*/
-
-#ifndef CONFIG_NAND_SPL
 /*
  * void relocate_code (addr_sp, gd, addr_moni)
  *
@@ -1644,8 +1651,88 @@ trap_reloc:
 	stw	r0, 4(r7)
 
 	blr
+
+#if defined(CONFIG_440)
+/*----------------------------------------------------------------------------+
+| dcbz_area.
++----------------------------------------------------------------------------*/
+	function_prolog(dcbz_area)
+	rlwinm. r5,r4,0,27,31
+	rlwinm  r5,r4,27,5,31
+	beq     ..d_ra2
+	addi    r5,r5,0x0001
+..d_ra2:mtctr   r5
+..d_ag2:dcbz    r0,r3
+	addi    r3,r3,32
+	bdnz    ..d_ag2
+	sync
+	blr
+	function_epilog(dcbz_area)
+
+/*----------------------------------------------------------------------------+
+| dflush.  Assume 32K at vector address is cachable.
++----------------------------------------------------------------------------*/
+	function_prolog(dflush)
+	mfmsr   r9
+	rlwinm  r8,r9,0,15,13
+	rlwinm  r8,r8,0,17,15
+	mtmsr   r8
+	addi    r3,r0,0x0000
+	mtspr   dvlim,r3
+	mfspr   r3,ivpr
+	addi    r4,r0,1024
+	mtctr   r4
+..dflush_loop:
+	lwz     r6,0x0(r3)
+	addi    r3,r3,32
+	bdnz    ..dflush_loop
+	addi    r3,r3,-32
+	mtctr   r4
+..ag:   dcbf    r0,r3
+	addi    r3,r3,-32
+	bdnz    ..ag
+	sync
+	mtmsr   r9
+	blr
+	function_epilog(dflush)
+#endif /* CONFIG_440 */
 #endif /* CONFIG_NAND_SPL */
 
+/*------------------------------------------------------------------------------- */
+/* Function:	 in8 */
+/* Description:	 Input 8 bits */
+/*------------------------------------------------------------------------------- */
+	.globl	in8
+in8:
+	lbz	r3,0x0000(r3)
+	blr
+
+/*------------------------------------------------------------------------------- */
+/* Function:	 out8 */
+/* Description:	 Output 8 bits */
+/*------------------------------------------------------------------------------- */
+	.globl	out8
+out8:
+	stb	r4,0x0000(r3)
+	blr
+
+/*------------------------------------------------------------------------------- */
+/* Function:	 out32 */
+/* Description:	 Output 32 bits */
+/*------------------------------------------------------------------------------- */
+	.globl	out32
+out32:
+	stw	r4,0x0000(r3)
+	blr
+
+/*------------------------------------------------------------------------------- */
+/* Function:	 in32 */
+/* Description:	 Input 32 bits */
+/*------------------------------------------------------------------------------- */
+	.globl	in32
+in32:
+	lwz	3,0x0000(3)
+	blr
 
 /**************************************************************************/
 /* PPC405EP specific stuff						  */
@@ -1892,13 +1979,6 @@ pll_wait:
 #endif /* CONFIG_405EP */
 
 #if defined(CONFIG_440)
-#define function_prolog(func_name)      .text; \
-					.align 2; \
-					.globl func_name; \
-					func_name:
-#define function_epilog(func_name)      .type func_name,@function; \
-					.size func_name,.-func_name
-
 /*----------------------------------------------------------------------------+
 | mttlb3.
 +----------------------------------------------------------------------------*/
@@ -1946,47 +2026,4 @@ pll_wait:
 	TLBRE(3,3,0)
 	blr
 	function_epilog(mftlb1)
-
-/*----------------------------------------------------------------------------+
-| dcbz_area.
-+----------------------------------------------------------------------------*/
-	function_prolog(dcbz_area)
-	rlwinm. r5,r4,0,27,31
-	rlwinm  r5,r4,27,5,31
-	beq     ..d_ra2
-	addi    r5,r5,0x0001
-..d_ra2:mtctr   r5
-..d_ag2:dcbz    r0,r3
-	addi    r3,r3,32
-	bdnz    ..d_ag2
-	sync
-	blr
-	function_epilog(dcbz_area)
-
-/*----------------------------------------------------------------------------+
-| dflush.  Assume 32K at vector address is cachable.
-+----------------------------------------------------------------------------*/
-	function_prolog(dflush)
-	mfmsr   r9
-	rlwinm  r8,r9,0,15,13
-	rlwinm  r8,r8,0,17,15
-	mtmsr   r8
-	addi    r3,r0,0x0000
-	mtspr   dvlim,r3
-	mfspr   r3,ivpr
-	addi    r4,r0,1024
-	mtctr   r4
-..dflush_loop:
-	lwz     r6,0x0(r3)
-	addi    r3,r3,32
-	bdnz    ..dflush_loop
-	addi    r3,r3,-32
-	mtctr   r4
-..ag:   dcbf    r0,r3
-	addi    r3,r3,-32
-	bdnz    ..ag
-	sync
-	mtmsr   r9
-	blr
-	function_epilog(dflush)
 #endif /* CONFIG_440 */
diff --git a/include/configs/bamboo.h b/include/configs/bamboo.h
index db58a9f..763d1c7 100644
--- a/include/configs/bamboo.h
+++ b/include/configs/bamboo.h
@@ -50,7 +50,7 @@
  *----------------------------------------------------------------------*/
 #define CFG_MONITOR_LEN		(384 * 1024)	/* Reserve 384 kB for Monitor	*/
 #define CFG_MALLOC_LEN		(256 * 1024)	/* Reserve 256 kB for malloc()	*/
-#define CFG_MONITOR_BASE	(-CFG_MONITOR_LEN)
+#define CFG_MONITOR_BASE	TEXT_BASE
 #define CFG_SDRAM_BASE	        0x00000000	    /* _must_ be 0	*/
 #define CFG_FLASH_BASE	        0xfff00000	    /* start of FLASH	*/
 #define CFG_PCI_MEMBASE	        0xa0000000	    /* mapped pci memory*/
@@ -104,14 +104,11 @@
 /*-----------------------------------------------------------------------
  * Environment
  *----------------------------------------------------------------------*/
-/*
- * Define here the location of the environment variables (FLASH or EEPROM).
- * Note: DENX encourages to use redundant environment in FLASH.
- */
-#if 1
+#if !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
 #define CFG_ENV_IS_IN_FLASH     1	/* use FLASH for environment vars	*/
 #else
-#define CFG_ENV_IS_IN_EEPROM	1	/* use EEPROM for environment vars	*/
+#define CFG_ENV_IS_IN_NAND	1	/* use NAND for environment vars	*/
+#define CFG_ENV_IS_EMBEDDED	1	/* use embedded environment */
 #endif
 
 /*-----------------------------------------------------------------------
@@ -133,7 +130,7 @@
 
 #ifdef CFG_ENV_IS_IN_FLASH
 #define CFG_ENV_SECT_SIZE	0x10000 	/* size of one complete sector	*/
-#define CFG_ENV_ADDR		(CFG_MONITOR_BASE-CFG_ENV_SECT_SIZE)
+#define CFG_ENV_ADDR		((-CFG_MONITOR_LEN)-CFG_ENV_SECT_SIZE)
 #define	CFG_ENV_SIZE		0x2000	/* Total Size of Environment Sector	*/
 
 /* Address and size of Redundant Environment Sector	*/
@@ -141,22 +138,89 @@
 #define CFG_ENV_SIZE_REDUND	(CFG_ENV_SIZE)
 #endif /* CFG_ENV_IS_IN_FLASH */
 
+/*
+ * IPL (Initial Program Loader, integrated inside CPU)
+ * Will load first 4k from NAND (SPL) into cache and execute it from there.
+ *
+ * SPL (Secondary Program Loader)
+ * Will load special U-Boot version (NUB) from NAND and execute it. This SPL
+ * has to fit into 4kByte. It sets up the CPU and configures the SDRAM
+ * controller and the NAND controller so that the special U-Boot image can be
+ * loaded from NAND to SDRAM.
+ *
+ * NUB (NAND U-Boot)
+ * This NAND U-Boot (NUB) is a special U-Boot version which can be started
+ * from RAM. Therefore it mustn't (re-)configure the SDRAM controller.
+ *
+ * On 440EPx the SPL is copied to SDRAM before the NAND controller is
+ * set up. While still running from cache, I experienced problems accessing
+ * the NAND controller.	sr - 2006-08-25
+ */
+#define CFG_NAND_BOOT_SPL_SRC	0xfffff000	/* SPL location			*/
+#define CFG_NAND_BOOT_SPL_SIZE	(4 << 10)	/* SPL size			*/
+#define CFG_NAND_BOOT_SPL_DST	0x00800000	/* Copy SPL here		*/
+#define CFG_NAND_U_BOOT_DST	0x01000000	/* Load NUB to this addr	*/
+#define CFG_NAND_U_BOOT_START	CFG_NAND_U_BOOT_DST /* Start NUB from this addr	*/
+#define CFG_NAND_BOOT_SPL_DELTA	(CFG_NAND_BOOT_SPL_SRC - CFG_NAND_BOOT_SPL_DST)
+
+/*
+ * Define the partitioning of the NAND chip (only RAM U-Boot is needed here)
+ */
+#define CFG_NAND_U_BOOT_OFFS	(16 << 10)	/* Offset to RAM U-Boot image	*/
+#define CFG_NAND_U_BOOT_SIZE	(384 << 10)	/* Size of RAM U-Boot image	*/
+
+/*
+ * Now the NAND chip has to be defined (no autodetection used!)
+ */
+#define CFG_NAND_PAGE_SIZE	512		/* NAND chip page size		*/
+#define CFG_NAND_BLOCK_SIZE	(16 << 10)	/* NAND chip block size		*/
+#define CFG_NAND_PAGE_COUNT	32		/* NAND chip page count		*/
+#define CFG_NAND_BAD_BLOCK_POS	5		/* Location of bad block marker	*/
+#define CFG_NAND_4_ADDR_CYCLE	1		/* Fourth addr used (>32MB)	*/
+
+#define CFG_NAND_ECCSIZE	256
+#define CFG_NAND_ECCBYTES	3
+#define CFG_NAND_ECCSTEPS	(CFG_NAND_PAGE_SIZE / CFG_NAND_ECCSIZE)
+#define CFG_NAND_OOBSIZE	16
+#define CFG_NAND_ECCTOTAL	(CFG_NAND_ECCBYTES * CFG_NAND_ECCSTEPS)
+#define CFG_NAND_ECCPOS		{0, 1, 2, 3, 6, 7}
+
+#ifdef CFG_ENV_IS_IN_NAND
+/*
+ * For NAND booting the environment is embedded in the U-Boot image. Please take
+ * look at the file board/amcc/sequoia/u-boot-nand.lds for details.
+ */
+#define CFG_ENV_SIZE		CFG_NAND_BLOCK_SIZE
+#define CFG_ENV_OFFSET		(CFG_NAND_U_BOOT_OFFS + CFG_ENV_SIZE)
+#define CFG_ENV_OFFSET_REDUND	(CFG_ENV_OFFSET + CFG_ENV_SIZE)
+#endif
+
 /*-----------------------------------------------------------------------
  * NAND FLASH
  *----------------------------------------------------------------------*/
-#define CFG_MAX_NAND_DEVICE	1
-#define NAND_MAX_CHIPS		1
-#define CFG_NAND_CS		1
+#define CFG_MAX_NAND_DEVICE	2
+#define NAND_MAX_CHIPS		CFG_MAX_NAND_DEVICE
 #define CFG_NAND_BASE		(CFG_NAND_ADDR + CFG_NAND_CS)
+#define CFG_NAND_BASE_LIST	{ CFG_NAND_BASE, CFG_NAND_ADDR + 2 }
 #define CFG_NAND_SELECT_DEVICE  1	/* nand driver supports mutipl. chips	*/
 
+#if !defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)
+#define CFG_NAND_CS		1
+#else
+#define CFG_NAND_CS		0		/* NAND chip connected to CSx	*/
+/* Memory Bank 0 (NAND-FLASH) initialization					*/
+#define CFG_EBC_PB0AP		0x018003c0
+#define CFG_EBC_PB0CR		(CFG_NAND_ADDR | 0x1c000)
+#endif
+
 /*-----------------------------------------------------------------------
  * DDR SDRAM
  *----------------------------------------------------------------------------- */
 #define CONFIG_SPD_EEPROM               /* Use SPD EEPROM for setup             */
 #undef CONFIG_DDR_ECC			/* don't use ECC			*/
 #define CFG_SIMULATE_SPD_EEPROM	0xff	/* simulate spd eeprom on this address	*/
-#define SPD_EEPROM_ADDRESS      {CFG_SIMULATE_SPD_EEPROM, 0x50, 0x51}
+#define SPD_EEPROM_ADDRESS	{CFG_SIMULATE_SPD_EEPROM, 0x50, 0x51}
+#define CFG_MBYTES_SDRAM	(64)	/* 64MB fixed size for early-sdram-init */
 
 /*-----------------------------------------------------------------------
  * I2C
diff --git a/nand_spl/board/amcc/bamboo/Makefile b/nand_spl/board/amcc/bamboo/Makefile
new file mode 100644
index 0000000..0df86f9
--- /dev/null
+++ b/nand_spl/board/amcc/bamboo/Makefile
@@ -0,0 +1,100 @@
+#
+# (C) Copyright 2007
+# Stefan Roese, DENX Software Engineering, sr@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
+
+LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
+LDFLAGS	= -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)
+AFLAGS	+= -DCONFIG_NAND_SPL
+CFLAGS	+= -DCONFIG_NAND_SPL
+
+SOBJS	= start.o init.o resetvec.o
+COBJS	= nand_boot.o nand_ecc.o ndfc.o sdram.o
+
+SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
+OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+__OBJS	:= $(SOBJS) $(COBJS)
+LNDIR	:= $(OBJTREE)/nand_spl/board/$(BOARDDIR)
+
+nandobj	:= $(OBJTREE)/nand_spl/
+
+ALL	= $(nandobj)u-boot-spl $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
+
+all:	$(obj).depend $(ALL)
+
+$(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
+	$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(PAD_TO) -O binary $< $@
+
+$(nandobj)u-boot-spl.bin:	$(nandobj)u-boot-spl
+	$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
+
+$(nandobj)u-boot-spl:	$(OBJS)
+	cd $(LNDIR) && $(LD) $(LDFLAGS) $$UNDEF_SYM $(__OBJS) \
+		-Map $(nandobj)u-boot-spl.map \
+		-o $(nandobj)u-boot-spl
+
+# create symbolic links for common files
+
+# from cpu directory
+$(obj)ndfc.c:
+	@rm -f $(obj)ndfc.c
+	ln -s $(SRCTREE)/cpu/ppc4xx/ndfc.c $(obj)ndfc.c
+
+$(obj)resetvec.S:
+	@rm -f $(obj)resetvec.S
+	ln -s $(SRCTREE)/cpu/ppc4xx/resetvec.S $(obj)resetvec.S
+
+$(obj)start.S:
+	@rm -f $(obj)start.S
+	ln -s $(SRCTREE)/cpu/ppc4xx/start.S $(obj)start.S
+
+# from board directory
+$(obj)init.S:
+	@rm -f $(obj)init.S
+	ln -s $(SRCTREE)/board/amcc/bamboo/init.S $(obj)init.S
+
+# from nand_spl directory
+$(obj)nand_boot.c:
+	@rm -f $(obj)nand_boot.c
+	ln -s $(SRCTREE)/nand_spl/nand_boot.c $(obj)nand_boot.c
+
+# from drivers/nand directory
+$(obj)nand_ecc.c:
+	@rm -f $(obj)nand_ecc.c
+	ln -s $(SRCTREE)/drivers/nand/nand_ecc.c $(obj)nand_ecc.c
+
+#########################################################################
+
+$(obj)%.o:	$(obj)%.S
+	$(CC) $(AFLAGS) -c -o $@ $<
+
+$(obj)%.o:	$(obj)%.c
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/nand_spl/board/amcc/bamboo/config.mk b/nand_spl/board/amcc/bamboo/config.mk
new file mode 100644
index 0000000..f7ec751
--- /dev/null
+++ b/nand_spl/board/amcc/bamboo/config.mk
@@ -0,0 +1,49 @@
+#
+# (C) Copyright 2007
+# Stefan Roese, DENX Software Engineering, sr@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+#
+# AMCC 440EP Reference Platform (Bamboo) board
+#
+
+#
+# TEXT_BASE for SPL:
+#
+# On 440EP(x) platforms the SPL is located at 0xfffff000...0xffffffff,
+# in the last 4kBytes of memory space in cache.
+# We will copy this SPL into instruction-cache in start.S. So we set
+# TEXT_BASE to starting address in i-cache here.
+#
+TEXT_BASE = 0x00800000
+
+# PAD_TO used to generate a 16kByte binary needed for the combined image
+# -> PAD_TO = TEXT_BASE + 0x4000
+PAD_TO	= 0x00804000
+
+PLATFORM_CPPFLAGS += -DCONFIG_440=1
+
+ifeq ($(debug),1)
+PLATFORM_CPPFLAGS += -DDEBUG
+endif
+
+ifeq ($(dbcr),1)
+PLATFORM_CPPFLAGS += -DCFG_INIT_DBCR=0x8cff0000
+endif
diff --git a/nand_spl/board/amcc/bamboo/sdram.c b/nand_spl/board/amcc/bamboo/sdram.c
new file mode 100644
index 0000000..4f09072
--- /dev/null
+++ b/nand_spl/board/amcc/bamboo/sdram.c
@@ -0,0 +1,92 @@
+/*
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <ppc4xx.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+
+static void wait_init_complete(void)
+{
+	u32 val;
+
+	do {
+		mfsdram(mem_mcsts, val);
+	} while (!(val & 0x80000000));
+}
+
+/*
+ * early_sdram_init()
+ *
+ * As the name already indicates, this function is called very early
+ * from start.S and configures the SDRAM with fixed values. This is needed,
+ * since the 440EP has no internal SRAM and the 4kB NAND_SPL loader has
+ * not enough free space to implement the complete I2C SPD DDR autodetection
+ * routines. Therefore the Bamboo only supports the onboard 64MBytes of SDRAM
+ * when booting from NAND flash.
+ */
+void early_sdram_init(void)
+{
+	/*
+	 * Soft-reset SDRAM controller.
+	 */
+	mtsdr(sdr_srst, SDR0_SRST_DMC);
+	mtsdr(sdr_srst, 0x00000000);
+
+	/*
+	 * Disable memory controller.
+	 */
+	mtsdram(mem_cfg0, 0x00000000);
+
+	/*
+	 * Setup some default
+	 */
+	mtsdram(mem_uabba, 0x00000000); /* ubba=0 (default)		*/
+	mtsdram(mem_slio, 0x00000000);	/* rdre=0 wrre=0 rarw=0		*/
+	mtsdram(mem_devopt, 0x00000000); /* dll=0 ds=0 (normal)		*/
+	mtsdram(mem_wddctr, 0x00000000); /* wrcp=0 dcd=0		*/
+	mtsdram(mem_clktr, 0x40000000); /* clkp=1 (90 deg wr) dcdt=0	*/
+
+	/*
+	 * Following for CAS Latency = 2.5 @ 133 MHz PLB
+	 */
+	mtsdram(mem_b0cr, 0x00082001);
+	mtsdram(mem_tr0, 0x41094012);
+	mtsdram(mem_tr1, 0x8080083d);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x00*/
+	mtsdram(mem_rtr, 0x04100000);	/* Interval 7.8µs @ 133MHz PLB	*/
+	mtsdram(mem_cfg1, 0x00000000);	/* Self-refresh exit, disable PM*/
+
+	/*
+	 * Enable the controller, then wait for DCEN to complete
+	 */
+	mtsdram(mem_cfg0, 0x80000000); /* DCEN=1, PMUD=0*/
+	wait_init_complete();
+}
+
+long int initdram(int board_type)
+{
+	/*
+	 * Nothing to do here, just return size of fixed SDRAM setup
+	 */
+	return CFG_MBYTES_SDRAM << 20;
+}
diff --git a/nand_spl/board/amcc/bamboo/u-boot.lds b/nand_spl/board/amcc/bamboo/u-boot.lds
new file mode 100644
index 0000000..28228f8
--- /dev/null
+++ b/nand_spl/board/amcc/bamboo/u-boot.lds
@@ -0,0 +1,65 @@
+/*
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(powerpc:common)
+SECTIONS
+{
+  .resetvec 0x00800FFC :
+  {
+    *(.resetvec)
+  } = 0xffff
+
+  .text      :
+  {
+    start.o	(.text)
+    init.o	(.text)
+    nand_boot.o	(.text)
+    sdram.o	(.text)
+    ndfc.o	(.text)
+
+    *(.text)
+    *(.fixup)
+  }
+  _etext = .;
+
+  .data    :
+  {
+    *(.rodata*)
+    *(.data*)
+    *(.sdata*)
+    __got2_start = .;
+    *(.got2)
+    __got2_end = .;
+  }
+
+  _edata  =  .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   *(.sbss)
+   *(.bss)
+  }
+
+  _end = . ;
+}
-- 
cgit v1.1


From 9d9096043e8f713d4bf1743d32e1459e6a11644b Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 15:29:04 +0200
Subject: ppc4xx: Update Sequoia NAND booting support with ECC

Signed-off-by: Stefan Roese <sr@denx.de>
---
 board/amcc/sequoia/sdram.c           |  4 ++++
 include/configs/sequoia.h            | 13 ++++++++++---
 nand_spl/board/amcc/sequoia/Makefile | 11 ++++++-----
 3 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/board/amcc/sequoia/sdram.c b/board/amcc/sequoia/sdram.c
index f8b837e..826d192 100644
--- a/board/amcc/sequoia/sdram.c
+++ b/board/amcc/sequoia/sdram.c
@@ -379,7 +379,11 @@ void denali_core_search_data_eye(unsigned long memory_size)
 long int initdram (int board_type)
 {
 #if !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
+#if !defined(CONFIG_NAND_SPL)
 	ulong speed = get_bus_freq(0);
+#else
+	ulong speed = 133333333;	/* 133MHz is on the safe side	*/
+#endif
 
 	mtsdram(DDR0_02, 0x00000000);
 
diff --git a/include/configs/sequoia.h b/include/configs/sequoia.h
index 1f19621..0b80888 100644
--- a/include/configs/sequoia.h
+++ b/include/configs/sequoia.h
@@ -166,12 +166,19 @@
 /*
  * Now the NAND chip has to be defined (no autodetection used!)
  */
-#define CFG_NAND_PAGE_SIZE	(512)		/* NAND chip page size		*/
+#define CFG_NAND_PAGE_SIZE	512		/* NAND chip page size		*/
 #define CFG_NAND_BLOCK_SIZE	(16 << 10)	/* NAND chip block size		*/
-#define CFG_NAND_PAGE_COUNT	(32)		/* NAND chip page count		*/
-#define CFG_NAND_BAD_BLOCK_POS	(5)		/* Location of bad block marker	*/
+#define CFG_NAND_PAGE_COUNT	32		/* NAND chip page count		*/
+#define CFG_NAND_BAD_BLOCK_POS	5		/* Location of bad block marker	*/
 #undef CFG_NAND_4_ADDR_CYCLE			/* No fourth addr used (<=32MB)	*/
 
+#define CFG_NAND_ECCSIZE	256
+#define CFG_NAND_ECCBYTES	3
+#define CFG_NAND_ECCSTEPS	(CFG_NAND_PAGE_SIZE / CFG_NAND_ECCSIZE)
+#define CFG_NAND_OOBSIZE	16
+#define CFG_NAND_ECCTOTAL	(CFG_NAND_ECCBYTES * CFG_NAND_ECCSTEPS)
+#define CFG_NAND_ECCPOS		{0, 1, 2, 3, 6, 7}
+
 #ifdef CFG_ENV_IS_IN_NAND
 /*
  * For NAND booting the environment is embedded in the U-Boot image. Please take
diff --git a/nand_spl/board/amcc/sequoia/Makefile b/nand_spl/board/amcc/sequoia/Makefile
index 510999d..ce39032 100644
--- a/nand_spl/board/amcc/sequoia/Makefile
+++ b/nand_spl/board/amcc/sequoia/Makefile
@@ -30,7 +30,7 @@ AFLAGS	+= -DCONFIG_NAND_SPL
 CFLAGS	+= -DCONFIG_NAND_SPL
 
 SOBJS	= start.o init.o resetvec.o
-COBJS	= nand_boot.o ndfc.o sdram.o speed.o
+COBJS	= nand_boot.o nand_ecc.o ndfc.o sdram.o
 
 SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
@@ -69,10 +69,6 @@ $(obj)start.S:
 	@rm -f $(obj)start.S
 	ln -s $(SRCTREE)/cpu/ppc4xx/start.S $(obj)start.S
 
-$(obj)speed.c:
-	@rm -f $(obj)speed.c
-	ln -s $(SRCTREE)/cpu/ppc4xx/speed.c $(obj)speed.c
-
 # from board directory
 $(obj)init.S:
 	@rm -f $(obj)init.S
@@ -89,6 +85,11 @@ $(obj)nand_boot.c:
 	@rm -f $(obj)nand_boot.c
 	ln -s $(SRCTREE)/nand_spl/nand_boot.c $(obj)nand_boot.c
 
+# from drivers/nand directory
+$(obj)nand_ecc.c:
+	@rm -f $(obj)nand_ecc.c
+	ln -s $(SRCTREE)/drivers/nand/nand_ecc.c $(obj)nand_ecc.c
+
 #########################################################################
 
 $(obj)%.o:	$(obj)%.S
-- 
cgit v1.1


From 155a96478a0881e6da96cbbbcf34952d6a3b1b4b Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 15:58:19 +0200
Subject: ppc4xx: Undo Sequoia patch for dynamic EBC speed support of 83MHz

This patch undoes the patch by Jeff Mann with commit-id ada4697d. As
suggested by AMCC it is not recommended to dynamically change the EBC
speed after bootup. So we undo this change to be on the safe side.

Signed-off-by: Stefan Roese <sr@denx.de>
---
 board/amcc/sequoia/sequoia.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/board/amcc/sequoia/sequoia.c b/board/amcc/sequoia/sequoia.c
index 8704014..ba365ae 100644
--- a/board/amcc/sequoia/sequoia.c
+++ b/board/amcc/sequoia/sequoia.c
@@ -132,12 +132,6 @@ int board_early_init_f(void)
 		(0x80000000 >> (28 + CFG_NAND_CS));
 	mtsdr(SDR0_CUST0, sdr0_cust0);
 
-	/* Update EBC speed after booting from i2c bootstrap settings
-	 * on newer boards with 33.333 MHZ Clocks
-	 */
-	if (in8(CFG_BCSR_BASE + 3) & 0x80)
-		mtcpr(0xe0, 0x02000000);
-
 	return 0;
 }
 
-- 
cgit v1.1


From 18d156eb37c90fadc8ec7a81a3b89176161f85b7 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 1 Jun 2007 16:18:17 +0200
Subject: ppc4xx: Add missing file for Bamboo NAND booting support

Signed-off-by: Stefan Roese <sr@denx.de>
---
 board/amcc/bamboo/u-boot-nand.lds | 137 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100644 board/amcc/bamboo/u-boot-nand.lds

diff --git a/board/amcc/bamboo/u-boot-nand.lds b/board/amcc/bamboo/u-boot-nand.lds
new file mode 100644
index 0000000..a5dae0e
--- /dev/null
+++ b/board/amcc/bamboo/u-boot-nand.lds
@@ -0,0 +1,137 @@
+/*
+ * (C) Copyright 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(powerpc)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .interp : { *(.interp) }
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .rel.text      : { *(.rel.text)		}
+  .rela.text     : { *(.rela.text) 	}
+  .rel.data      : { *(.rel.data)		}
+  .rela.data     : { *(.rela.data) 	}
+  .rel.rodata    : { *(.rel.rodata) 	}
+  .rela.rodata   : { *(.rela.rodata) 	}
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	}
+  .plt : { *(.plt) }
+  .text      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector layout of our flash chips!	XXX FIXME XXX	*/
+
+    cpu/ppc4xx/start.o	(.text)
+
+    /* Align to next NAND block */
+    . = ALIGN(0x4000);
+    common/environment.o  (.ppcenv)
+    /* Keep some space here for redundant env and potential bad env blocks */
+    . = ALIGN(0x10000);
+
+    *(.text)
+    *(.fixup)
+    *(.got1)
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata    :
+  {
+    *(.rodata)
+    *(.rodata1)
+    *(.rodata.str1.4)
+  }
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x00FF) & 0xFFFFFF00;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    *(.got)
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  . = .;
+  __u_boot_cmd_start = .;
+  .u_boot_cmd : { *(.u_boot_cmd) }
+  __u_boot_cmd_end = .;
+
+
+  . = .;
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(256);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(256);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+
+  _end = . ;
+  PROVIDE (end = .);
+}
-- 
cgit v1.1


From e3cbe1f93c5722f8ebbad468e30c069a2b511097 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Beno=C3=AEt=20Monin?= <bmonin@adeneo.eu>
Date: Mon, 4 Jun 2007 08:36:05 +0200
Subject: [PATCH] Fix ppc4xx bootstrap letter displayed on startup

The attached patch is mainly cosmetic, allowing u-boot to
display the correct bootstrap option letter according to the
datasheets.

The original patch was extended with 405EZ support by Stefan
Roese.

Signed-off-by: Benoit Monin <bmonin@adeneo.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
---
 cpu/ppc4xx/cpu.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c
index 8e6bc84..c07bc0c 100644
--- a/cpu/ppc4xx/cpu.c
+++ b/cpu/ppc4xx/cpu.c
@@ -139,6 +139,7 @@ static char *bootstrap_str[] = {
 	"Reserved",
 	"I2C (Addr 0x50)",
 };
+static char bootstrap_char[] = { 'A', 'B', 'C', 'B', 'D', 'E', 'x', 'F' };
 #endif
 
 #if defined(CONFIG_440SP) || defined(CONFIG_440SPE)
@@ -149,6 +150,7 @@ static char *bootstrap_str[] = {
 	"I2C (Addr 0x54)",
 	"I2C (Addr 0x50)",
 };
+static char bootstrap_char[] = { 'A', 'B', 'C', 'D'};
 #endif
 
 #if defined(CONFIG_440EP) || defined(CONFIG_440GR)
@@ -163,6 +165,7 @@ static char *bootstrap_str[] = {
 	"PCI",
 	"I2C (Addr 0x52)",
 };
+static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G', 'F', 'H' };
 #endif
 
 #if defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
@@ -177,6 +180,7 @@ static char *bootstrap_str[] = {
 	"PCI",
 	"I2C (Addr 0x52)",
 };
+static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'G', 'F', 'H' };
 #endif
 
 #if defined(CONFIG_405EZ)
@@ -199,6 +203,8 @@ static char *bootstrap_str[] = {
 	"SPI (slow)",
 	"I2C (Addr 0x50)",
 };
+static char bootstrap_char[] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', \
+				 'I', 'x', 'K', 'L', 'M', 'N', 'O', 'P' };
 #endif
 
 #if defined(SDR0_PINSTP_SHIFT)
@@ -427,7 +433,7 @@ int checkcpu (void)
 	printf ("       I2C boot EEPROM %sabled\n", i2c_bootrom_enabled() ? "en" : "dis");
 #endif	/* I2C_BOOTROM */
 #if defined(SDR0_PINSTP_SHIFT)
-	printf ("       Bootstrap Option %c - ", (char)bootstrap_option() + 'A');
+	printf ("       Bootstrap Option %c - ", bootstrap_char[bootstrap_option()]);
 	printf ("Boot ROM Location %s\n", bootstrap_str[bootstrap_option()]);
 #endif	/* SDR0_PINSTP_SHIFT */
 
-- 
cgit v1.1