From df294497479b1dca6dd86318b2a912f72fede0df Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Thu, 8 Mar 2007 10:06:09 +0100
Subject: [PATCH 1/4] ppc4xx: Update 440SP/440SPe DDR SPD setup code to support
 440SP

Signed-off-by: Stefan Roese <sr@denx.de>
---
 cpu/ppc4xx/44x_spd_ddr2.c | 64 ++++++++++++++++++++++++---------------
 include/ppc440.h          | 25 ++++++++++++++-
 2 files changed, 63 insertions(+), 26 deletions(-)

diff --git a/cpu/ppc4xx/44x_spd_ddr2.c b/cpu/ppc4xx/44x_spd_ddr2.c
index 35b23152f3..c4da739607 100644
--- a/cpu/ppc4xx/44x_spd_ddr2.c
+++ b/cpu/ppc4xx/44x_spd_ddr2.c
@@ -188,6 +188,7 @@ static void program_initplr(unsigned long *dimm_populated,
                             ddr_cas_id_t selected_cas,
 			    int write_recovery);
 static unsigned long is_ecc_enabled(void);
+#ifdef CONFIG_DDR_ECC
 static void program_ecc(unsigned long *dimm_populated,
 			unsigned char *iic0_dimm_addr,
 			unsigned long num_dimm_banks,
@@ -195,6 +196,7 @@ static void program_ecc(unsigned long *dimm_populated,
 static void program_ecc_addr(unsigned long start_address,
 			     unsigned long num_bytes,
 			     unsigned long tlb_word2_i_value);
+#endif
 static void program_DQS_calibration(unsigned long *dimm_populated,
 				    unsigned char *iic0_dimm_addr,
 				    unsigned long num_dimm_banks);
@@ -255,15 +257,6 @@ static void mtdcr_any(u32 dcr, u32 val)
 	}
 }
 
-static void wait_ddr_idle(void)
-{
-	u32 val;
-
-	do {
-		mfsdram(SDRAM_MCSTAT, val);
-	} while ((val & SDRAM_MCSTAT_IDLE_MASK) == SDRAM_MCSTAT_IDLE_NOT);
-}
-
 static unsigned char spd_read(uchar chip, uint addr)
 {
 	unsigned char data[2];
@@ -491,7 +484,7 @@ long int initdram(int board_type)
 		(val & ~(SDRAM_MEMODE_DIC_MASK  | SDRAM_MEMODE_DLL_MASK |
 			 SDRAM_MEMODE_RTT_MASK | SDRAM_MEMODE_DQS_MASK)) |
 		(SDRAM_MEMODE_DIC_NORMAL | SDRAM_MEMODE_DLL_ENABLE
-		 | SDRAM_MEMODE_RTT_75OHM | SDRAM_MEMODE_DQS_ENABLE));
+		 | SDRAM_MEMODE_RTT_150OHM | SDRAM_MEMODE_DQS_ENABLE));
 
 	/*------------------------------------------------------------------
 	 * Program Initialization preload registers.
@@ -537,10 +530,12 @@ long int initdram(int board_type)
 	 *-----------------------------------------------------------------*/
 	program_DQS_calibration(dimm_populated, iic0_dimm_addr, num_dimm_banks);
 
+#ifdef CONFIG_DDR_ECC
 	/*------------------------------------------------------------------
 	 * If ecc is enabled, initialize the parity bits.
 	 *-----------------------------------------------------------------*/
 	program_ecc(dimm_populated, iic0_dimm_addr, num_dimm_banks, MY_TLB_WORD2_I_ENABLE);
+#endif
 
 #ifdef DEBUG
 	ppc440sp_sdram_register_dump();
@@ -702,7 +697,7 @@ static void check_frequency(unsigned long *dimm_populated,
 	 *-----------------------------------------------------------------*/
 	get_sys_info(&board_cfg);
 
-	mfsdr(sdr_ddr0, sdr_ddrpll);
+	mfsdr(SDR0_DDR0, sdr_ddrpll);
 	sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll));
 
 	/*
@@ -877,7 +872,11 @@ static void program_copt1(unsigned long *dimm_populated,
 	unsigned long ddrtype;
 	unsigned long val;
 
+#ifdef CONFIG_DDR_ECC
 	ecc_enabled = TRUE;
+#else
+	ecc_enabled = FALSE;
+#endif
 	dimm_32bit = FALSE;
 	dimm_64bit = FALSE;
 	buf0 = FALSE;
@@ -1314,7 +1313,7 @@ static void program_mode(unsigned long *dimm_populated,
 	 *-----------------------------------------------------------------*/
 	get_sys_info(&board_cfg);
 
-	mfsdr(sdr_ddr0, sdr_ddrpll);
+	mfsdr(SDR0_DDR0, sdr_ddrpll);
 	sdram_freq = MULDIV64((board_cfg.freqPLB), SDR0_DDR0_DDRM_DECODE(sdr_ddrpll), 1);
 
 	/*------------------------------------------------------------------
@@ -1463,11 +1462,12 @@ static void program_mode(unsigned long *dimm_populated,
 	mfsdram(SDRAM_MMODE, mmode);
 	mmode = mmode & ~(SDRAM_MMODE_WR_MASK | SDRAM_MMODE_DCL_MASK);
 
-	cycle_2_0_clk = MULDIV64(ONE_BILLION, 100, max_2_0_tcyc_ns_x_100);
-	cycle_2_5_clk = MULDIV64(ONE_BILLION, 100, max_2_5_tcyc_ns_x_100);
-	cycle_3_0_clk = MULDIV64(ONE_BILLION, 100, max_3_0_tcyc_ns_x_100);
-	cycle_4_0_clk = MULDIV64(ONE_BILLION, 100, max_4_0_tcyc_ns_x_100);
-	cycle_5_0_clk = MULDIV64(ONE_BILLION, 100, max_5_0_tcyc_ns_x_100);
+	/* add 10 here because of rounding problems */
+	cycle_2_0_clk = MULDIV64(ONE_BILLION, 100, max_2_0_tcyc_ns_x_100) + 10;
+	cycle_2_5_clk = MULDIV64(ONE_BILLION, 100, max_2_5_tcyc_ns_x_100) + 10;
+	cycle_3_0_clk = MULDIV64(ONE_BILLION, 100, max_3_0_tcyc_ns_x_100) + 10;
+	cycle_4_0_clk = MULDIV64(ONE_BILLION, 100, max_4_0_tcyc_ns_x_100) + 10;
+	cycle_5_0_clk = MULDIV64(ONE_BILLION, 100, max_5_0_tcyc_ns_x_100) + 10;
 
 	if (sdram_ddr1 == TRUE) { /* DDR1 */
 		if ((cas_2_0_available == TRUE) && (sdram_freq <= cycle_2_0_clk)) {
@@ -1498,7 +1498,11 @@ static void program_mode(unsigned long *dimm_populated,
 		} else {
 			printf("ERROR: Cannot find a supported CAS latency with the installed DIMMs.\n");
 			printf("Only DIMMs DDR2 with CAS latencies of 3.0, 4.0, and 5.0 are supported.\n");
-			printf("Make sure the PLB speed is within the supported range of the DIMMs.\n\n");
+			printf("Make sure the PLB speed is within the supported range of the DIMMs.\n");
+			printf("cas3=%d cas4=%d cas5=%d\n",
+			       cas_3_0_available, cas_4_0_available, cas_5_0_available);
+			printf("sdram_freq=%d cycle3=%d cycle4=%d cycle5=%d\n\n",
+			       sdram_freq, cycle_3_0_clk, cycle_4_0_clk, cycle_5_0_clk);
 			hang();
 		}
 	}
@@ -1575,7 +1579,7 @@ static void program_rtr(unsigned long *dimm_populated,
 	/*------------------------------------------------------------------
 	 * Set the SDRAM Refresh Timing Register, SDRAM_RTR
 	 *-----------------------------------------------------------------*/
-	mfsdr(sdr_ddr0, sdr_ddrpll);
+	mfsdr(SDR0_DDR0, sdr_ddrpll);
 	sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll));
 
 	max_refresh_rate = 0;
@@ -1661,7 +1665,7 @@ static void program_tr(unsigned long *dimm_populated,
 	 *-----------------------------------------------------------------*/
 	get_sys_info(&board_cfg);
 
-	mfsdr(sdr_ddr0, sdr_ddrpll);
+	mfsdr(SDR0_DDR0, sdr_ddrpll);
 	sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll));
 
 	/*------------------------------------------------------------------
@@ -2069,7 +2073,7 @@ static void program_memory_queue(unsigned long *dimm_populated,
 			 * Set the sizes
 			 *-----------------------------------------------------------------*/
 			baseadd_size = 0;
-			rank_size_bytes = 1024 * 1024 * rank_size_id;
+			rank_size_bytes = 4 * 1024 * 1024 * rank_size_id;
 			switch (rank_size_id) {
 			case 0x02:
 				baseadd_size |= SDRAM_RXBAS_SDSZ_8;
@@ -2106,8 +2110,8 @@ static void program_memory_queue(unsigned long *dimm_populated,
 
 			for (i = 0; i < num_ranks; i++)	{
 				mtdcr_any(rank_reg+i+dimm_num+bank_0_populated,
-					  (rank_base_addr & SDRAM_RXBAS_SDBA_MASK) |
-					  baseadd_size);
+					  (SDRAM_RXBAS_SDBA_ENCODE(rank_base_addr) |
+					   baseadd_size));
 				rank_base_addr += rank_size_bytes;
 			}
 		}
@@ -2130,9 +2134,10 @@ static unsigned long is_ecc_enabled(void)
 		ecc = max(ecc, SDRAM_MCOPT1_MCHK_CHK_DECODE(val));
 	}
 
-	return(ecc);
+	return ecc;
 }
 
+#ifdef CONFIG_DDR_ECC
 /*-----------------------------------------------------------------------------+
  * program_ecc.
  *-----------------------------------------------------------------------------*/
@@ -2208,6 +2213,15 @@ static void check_ecc(void)
 }
 #endif
 
+static void wait_ddr_idle(void)
+{
+	u32 val;
+
+	do {
+		mfsdram(SDRAM_MCSTAT, val);
+	} while ((val & SDRAM_MCSTAT_IDLE_MASK) == SDRAM_MCSTAT_IDLE_NOT);
+}
+
 /*-----------------------------------------------------------------------------+
  * program_ecc_addr.
  *-----------------------------------------------------------------------------*/
@@ -2276,6 +2290,7 @@ static void program_ecc_addr(unsigned long start_address,
 #endif
 	}
 }
+#endif
 
 /*-----------------------------------------------------------------------------+
  * program_DQS_calibration.
@@ -2531,7 +2546,6 @@ static void DQS_calibration_process(void)
 		}
 	}		/* for rffd */
 
-
 	/*------------------------------------------------------------------
 	 * Set the average RFFD value
 	 *-----------------------------------------------------------------*/
diff --git a/include/ppc440.h b/include/ppc440.h
index 1c7f11c488..5fe407626b 100644
--- a/include/ppc440.h
+++ b/include/ppc440.h
@@ -417,7 +417,9 @@
 #define SDR0_PEGPLLSET1		0x000003A0	/* PE Pll LC Tank Setting1 */
 #define SDR0_PEGPLLSET2		0x000003A1	/* PE Pll LC Tank Setting2 */
 #define SDR0_PEGPLLSTS		0x000003A2	/* PE Pll LC Tank Status */
+#endif /* CONFIG_440SPE */
 
+#if defined(CONFIG_440SP) || defined(CONFIG_440SPE)
 /*----------------------------------------------------------------------------+
 | SDRAM Controller
 +----------------------------------------------------------------------------*/
@@ -453,9 +455,16 @@
 /*-----------------------------------------------------------------------------+
 |  Memory Bank 0-7 configuration
 +-----------------------------------------------------------------------------*/
-#define SDRAM_RXBAS_SDBA_MASK		0xFF800000	/* Base address	*/
+#if defined(CONFIG_440SPE)
+#define SDRAM_RXBAS_SDBA_MASK		0xFFE00000	/* Base address	*/
 #define SDRAM_RXBAS_SDBA_ENCODE(n)	((((unsigned long)(n))&0xFFE00000)>>2)
 #define SDRAM_RXBAS_SDBA_DECODE(n)	((((unsigned long)(n))&0xFFE00000)<<2)
+#endif /* CONFIG_440SPE */
+#if defined(CONFIG_440SP)
+#define SDRAM_RXBAS_SDBA_MASK		0xFF800000	/* Base address	*/
+#define SDRAM_RXBAS_SDBA_ENCODE(n)	((((unsigned long)(n))&0xFF800000))
+#define SDRAM_RXBAS_SDBA_DECODE(n)	((((unsigned long)(n))&0xFF800000))
+#endif /* CONFIG_440SP */
 #define SDRAM_RXBAS_SDSZ_MASK		0x0000FFC0	/* Size		*/
 #define SDRAM_RXBAS_SDSZ_ENCODE(n)	((((unsigned long)(n))&0x3FF)<<6)
 #define SDRAM_RXBAS_SDSZ_DECODE(n)	((((unsigned long)(n))>>6)&0x3FF)
@@ -2167,6 +2176,20 @@
 /*-----------------------------------------------------------------------------+
 |  SDR0 Bit Settings
 +-----------------------------------------------------------------------------*/
+#if defined(CONFIG_440SP)
+#define SDR0_SRST			0x0200
+
+#define SDR0_DDR0			0x00E1
+#define SDR0_DDR0_DPLLRST		0x80000000
+#define SDR0_DDR0_DDRM_MASK		0x60000000
+#define SDR0_DDR0_DDRM_DDR1		0x20000000
+#define SDR0_DDR0_DDRM_DDR2		0x40000000
+#define SDR0_DDR0_DDRM_ENCODE(n)	((((unsigned long)(n))&0x03)<<29)
+#define SDR0_DDR0_DDRM_DECODE(n)	((((unsigned long)(n))>>29)&0x03)
+#define SDR0_DDR0_TUNE_ENCODE(n)	((((unsigned long)(n))&0x2FF)<<0)
+#define SDR0_DDR0_TUNE_DECODE(n)	((((unsigned long)(n))>>0)&0x2FF)
+#endif
+
 #if defined(CONFIG_440SPE)
 #define SDR0_CP440			0x0180
 #define SDR0_CP440_ERPN_MASK		0x30000000

From 2721a68a9ea91f1e494649ce68b2577261f578e2 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Thu, 8 Mar 2007 10:07:18 +0100
Subject: [PATCH 2/4] ppc4xx: Small AMCC Katmai 440SPe update

Signed-off-by: Stefan Roese <sr@denx.de>
---
 board/amcc/katmai/init.S | 10 ++++++++++
 include/configs/katmai.h |  1 +
 2 files changed, 11 insertions(+)

diff --git a/board/amcc/katmai/init.S b/board/amcc/katmai/init.S
index f5900bcb7b..6b024eec40 100644
--- a/board/amcc/katmai/init.S
+++ b/board/amcc/katmai/init.S
@@ -46,6 +46,11 @@
 	.globl tlbtabA
 tlbtabA:
 	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(0xff000000, SZ_16M, 0xff000000, 4, AC_R|AC_W|AC_X|SA_G)
 
 	/*
@@ -81,6 +86,11 @@ tlbtabA:
 	.globl tlbtabB
 tlbtabB:
 	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(0xff000000, SZ_16M, 0xff000000, 4, AC_R|AC_W|AC_X|SA_G)
 
 	/*
diff --git a/include/configs/katmai.h b/include/configs/katmai.h
index f350155c83..1606d0da17 100644
--- a/include/configs/katmai.h
+++ b/include/configs/katmai.h
@@ -108,6 +108,7 @@
  *----------------------------------------------------------------------*/
 #define CONFIG_SPD_EEPROM	1	/* Use SPD EEPROM for setup	*/
 #define SPD_EEPROM_ADDRESS	{0x51, 0x52}	/* SPD i2c spd addresses*/
+#define CONFIG_DDR_ECC		1	/* with ECC support		*/
 #undef  CONFIG_STRESS
 
 /*-----------------------------------------------------------------------

From 2f5df47351910a2936c7741cf111855829200943 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Thu, 8 Mar 2007 10:10:18 +0100
Subject: [PATCH 3/4] [PATCH] Update AMCC Yucca 440SPe eval board support

The AMCC Yucca now uses the common 440SP(e) DDR SPD code for DDR
inititializition. This includes DDR auto calibration and support
for different DIMM modules, instead of the fixed setup used in
the earlier version.

Signed-off-by: Stefan Roese <sr@denx.de>
---
 board/amcc/yucca/init.S  |  83 ++++------
 board/amcc/yucca/yucca.c | 316 +--------------------------------------
 include/configs/yucca.h  |  14 +-
 3 files changed, 35 insertions(+), 378 deletions(-)

diff --git a/board/amcc/yucca/init.S b/board/amcc/yucca/init.S
index c9eca686b2..c92dcf7a51 100644
--- a/board/amcc/yucca/init.S
+++ b/board/amcc/yucca/init.S
@@ -1,4 +1,7 @@
 /*
+ * (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
@@ -19,56 +22,10 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  * MA 02111-1307 USA
  */
-/* port to AMCC 440SPE evaluatioon board - SG April 12,2005  */
 
 #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_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
@@ -89,12 +46,18 @@
 	.globl tlbtabA
 tlbtabA:
 	tlbtab_start
-	tlbentry(0xfff00000, SZ_16M, 0xfff00000, 4, AC_R|AC_W|AC_X|SA_G)
 
-	tlbentry(CFG_SDRAM_BASE, SZ_256M, 0x00000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I)
-	tlbentry(CFG_SDRAM_BASE + 0x10000000, SZ_256M, 0x10000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I)
-	tlbentry(CFG_SDRAM_BASE + 0x20000000, SZ_256M, 0x20000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I)
-	tlbentry(CFG_SDRAM_BASE + 0x30000000, SZ_256M, 0x30000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I)
+	/*
+	 * 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(0xff000000, SZ_16M, 0xff000000, 4, AC_R|AC_W|AC_X|SA_G)
+
+	/*
+	 * TLB entries for SDRAM are not needed on this platform.
+	 * They are dynamically generated in the SPD DDR(2) detection
+	 * routine.
+	 */
 
 	tlbentry(CFG_ISRAM_BASE, SZ_256K, 0x00000000, 4, AC_R|AC_W|AC_X|SA_I)
 	tlbentry(CFG_FPGA_BASE, SZ_1K, 0xE2000000, 4,AC_R|AC_W|SA_I)
@@ -126,12 +89,18 @@ tlbtabA:
 	.globl tlbtabB
 tlbtabB:
 	tlbtab_start
-	tlbentry(0xfff00000, SZ_16M, 0xfff00000, 4, AC_R|AC_W|AC_X|SA_G)
 
-	tlbentry(CFG_SDRAM_BASE, SZ_256M, 0x00000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I)
-	tlbentry(CFG_SDRAM_BASE + 0x10000000, SZ_256M, 0x10000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I)
-	tlbentry(CFG_SDRAM_BASE + 0x20000000, SZ_256M, 0x20000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I)
-	tlbentry(CFG_SDRAM_BASE + 0x30000000, SZ_256M, 0x30000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I)
+	/*
+	 * 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(0xff000000, SZ_16M, 0xff000000, 4, AC_R|AC_W|AC_X|SA_G)
+
+	/*
+	 * TLB entries for SDRAM are not needed on this platform.
+	 * They are dynamically generated in the SPD DDR(2) detection
+	 * routine.
+	 */
 
 	tlbentry(CFG_ISRAM_BASE, SZ_256K, 0x00000000, 4, AC_R|AC_W|AC_X|SA_I)
 	tlbentry(CFG_FPGA_BASE, SZ_1K, 0xE2000000, 4,AC_R|AC_W|SA_I)
diff --git a/board/amcc/yucca/yucca.c b/board/amcc/yucca/yucca.c
index e9b34dd249..90eaab1c80 100644
--- a/board/amcc/yucca/yucca.c
+++ b/board/amcc/yucca/yucca.c
@@ -44,8 +44,6 @@ int compare_to_true(char *str );
 char *remove_l_w_space(char *in_str );
 char *remove_t_w_space(char *in_str );
 int get_console_port(void);
-unsigned long ppcMfcpr(unsigned long cpr_reg);
-unsigned long ppcMfsdr(unsigned long sdr_reg);
 
 int ppc440spe_init_pcie_rootport(int port);
 void ppc440spe_setup_pcie(struct pci_controller *hose, int port);
@@ -221,7 +219,7 @@ int board_early_init_f (void)
 	 |
 	 +-------------------------------------------------------------------*/
 	/* Read Pin Strap Register in PPC440SP */
-	sdr0_pinstp = ppcMfsdr(SDR0_PINSTP);
+	mfsdr(SDR0_PINSTP, sdr0_pinstp);
 	bootstrap_settings = sdr0_pinstp & SDR0_PINSTP_BOOTSTRAP_MASK;
 
 	switch (bootstrap_settings) {
@@ -246,7 +244,7 @@ int board_early_init_f (void)
 			 * Boot Settings in IIC EEprom address 0x50 or 0x54
 			 * Read Serial Device Strap Register1 in PPC440SPe
 			 */
-			sdr0_sdstp1 = ppcMfsdr(SDR0_SDSTP1);
+			mfsdr(SDR0_SDSTP1, sdr0_sdstp1);
 			boot_selection = sdr0_sdstp1 & SDR0_SDSTP1_ERPN_MASK;
 			ebc_data_width = sdr0_sdstp1 & SDR0_SDSTP1_EBCW_MASK;
 
@@ -564,277 +562,6 @@ int checkboard (void)
 	return 0;
 }
 
-static long int yucca_probe_for_dimms(void)
-{
-	int 	dimm_installed[MAXDIMMS];
-	int	dimm_num, result;
-	int	dimms_found = 0;
-	uchar	dimm_addr = IIC0_DIMM0_ADDR;
-	uchar   dimm_spd_data[MAX_SPD_BYTES];
-
-	for (dimm_num = 0; dimm_num < MAXDIMMS; dimm_num++) {
-		/* check if there is a chip at the dimm address	*/
-		switch (dimm_num) {
-			case 0:
-				dimm_addr = IIC0_DIMM0_ADDR;
-				break;
-			case 1:
-				dimm_addr = IIC0_DIMM1_ADDR;
-				break;
-		}
-
-		result = i2c_probe(dimm_addr);
-
-		memset(dimm_spd_data, 0, MAX_SPD_BYTES * sizeof(char));
-		if (result == 0) {
-			/* read first byte of SPD data, if there is any data */
-			result = i2c_read(dimm_addr, 0, 1, dimm_spd_data, 1);
-
-			if (result == 0) {
-				result = dimm_spd_data[0];
-				result = result > MAX_SPD_BYTES ?
-						MAX_SPD_BYTES : result;
-				result = i2c_read(dimm_addr, 0, 1,
-							dimm_spd_data, result);
-			}
-		}
-
-		if ((result == 0) &&
-		    (dimm_spd_data[64] == MICRON_SPD_JEDEC_ID)) {
-			dimm_installed[dimm_num] = TRUE;
-			dimms_found++;
-			debug("DIMM slot %d: DDR2 SDRAM detected\n", dimm_num);
-		} else {
-			dimm_installed[dimm_num] = FALSE;
-			debug("DIMM slot %d: Not populated or cannot sucessfully probe the DIMM\n", dimm_num);
-		}
-	}
-
-	if (dimms_found == 0) {
-		printf("ERROR - No memory installed.  Install a DDR-SDRAM DIMM.\n\n");
-		hang();
-	}
-
-	if (dimm_installed[0] != TRUE) {
-		printf("\nERROR - DIMM slot 0 must be populated before DIMM slot 1.\n");
-		printf("        Unsupported configuration. Move DIMM module from DIMM slot 1 to slot 0.\n\n");
-		hang();
-	}
-
-	return dimms_found;
-}
-
-/*************************************************************************
- * init SDRAM controller with fixed value
- * the initialization values are for 2x MICRON DDR2
- * PN: MT18HTF6472DY-53EB2
- * 512MB, DDR2, 533, CL4, ECC, REG
- ************************************************************************/
-static long int fixed_sdram(void)
-{
-	long int yucca_dimms = 0;
-
-	yucca_dimms = yucca_probe_for_dimms();
-
-	/* SDRAM0_MCOPT2 (0X21) Clear DCEN BIT	*/
-	mtdcr( 0x10, 0x00000021 );
-	mtdcr( 0x11, 0x84000000 );
-
-	/* SDRAM0_MCOPT1 (0X20) ECC OFF / 64 bits / 4 banks / DDR2	*/
-	mtdcr( 0x10, 0x00000020 );
-	mtdcr( 0x11, 0x2D122000 );
-
-	/* SET MCIF0_CODT   Die Termination On	*/
-	mtdcr( 0x10, 0x00000026 );
-	if (yucca_dimms == 2)
-		mtdcr( 0x11, 0x2A800021 );
-	else if (yucca_dimms == 1)
-		mtdcr( 0x11, 0x02800021 );
-
-	/* On-Die Termination for Bank 0	*/
-	mtdcr( 0x10, 0x00000022 );
-	if (yucca_dimms == 2)
-		mtdcr( 0x11, 0x18000000 );
-	else if (yucca_dimms == 1)
-		mtdcr( 0x11, 0x06000000 );
-
-	/*	On-Die Termination for Bank 1	*/
-	mtdcr( 0x10, 0x00000023 );
-	if (yucca_dimms == 2)
-		mtdcr( 0x11, 0x18000000 );
-	else if (yucca_dimms == 1)
-		mtdcr( 0x11, 0x01800000 );
-
-	/*	On-Die Termination for Bank 2	*/
-	mtdcr( 0x10, 0x00000024 );
-	if (yucca_dimms == 2)
-		mtdcr( 0x11, 0x01800000 );
-	else if (yucca_dimms == 1)
-		mtdcr( 0x11, 0x00000000 );
-
-	/*	On-Die Termination for Bank 3	*/
-	mtdcr( 0x10, 0x00000025 );
-	if (yucca_dimms == 2)
-		mtdcr( 0x11, 0x01800000 );
-	else if (yucca_dimms == 1)
-		mtdcr( 0x11, 0x00000000 );
-
-	/* Refresh Time register (0x30) Refresh every 7.8125uS	*/
-	mtdcr( 0x10, 0x00000030 );
-	mtdcr( 0x11, 0x08200000 );
-
-	/* SET MCIF0_MMODE  	 CL 4	*/
-	mtdcr( 0x10, 0x00000088 );
-	mtdcr( 0x11, 0x00000642 );
-
-	/* MCIF0_MEMODE	*/
-	mtdcr( 0x10, 0x00000089 );
-	mtdcr( 0x11, 0x00000004 );
-
-	/*SET MCIF0_MB0CF 	*/
-	mtdcr( 0x10, 0x00000040 );
-	mtdcr( 0x11, 0x00000201 );
-
-	/* SET MCIF0_MB1CF 	*/
-	mtdcr( 0x10, 0x00000044 );
-	mtdcr( 0x11, 0x00000201 );
-
-	/* SET MCIF0_MB2CF 	*/
-	mtdcr( 0x10, 0x00000048 );
-	if (yucca_dimms == 2)
-		mtdcr( 0x11, 0x00000201 );
-	else if (yucca_dimms == 1)
-		mtdcr( 0x11, 0x00000000 );
-
-	/* SET MCIF0_MB3CF 	*/
-	mtdcr( 0x10, 0x0000004c );
-	if (yucca_dimms == 2)
-		mtdcr( 0x11, 0x00000201 );
-	else if (yucca_dimms == 1)
-		mtdcr( 0x11, 0x00000000 );
-
-	/* SET MCIF0_INITPLR0  # NOP		*/
-	mtdcr( 0x10, 0x00000050 );
-	mtdcr( 0x11, 0xB5380000 );
-
-	/* SET MCIF0_INITPLR1  # PRE		*/
-	mtdcr( 0x10, 0x00000051 );
-	mtdcr( 0x11, 0x82100400 );
-
-	/* SET MCIF0_INITPLR2  # EMR2		*/
-	mtdcr( 0x10, 0x00000052 );
-	mtdcr( 0x11, 0x80820000 );
-
-	/* SET MCIF0_INITPLR3  # EMR3		*/
-	mtdcr( 0x10, 0x00000053 );
-	mtdcr( 0x11, 0x80830000 );
-
-	/* SET MCIF0_INITPLR4  # EMR DLL ENABLE	*/
-	mtdcr( 0x10, 0x00000054 );
-	mtdcr( 0x11, 0x80810000 );
-
-	/* SET MCIF0_INITPLR5  # MR DLL RESET	*/
-	mtdcr( 0x10, 0x00000055 );
-	mtdcr( 0x11, 0x80800542 );
-
-	/* SET MCIF0_INITPLR6  # PRE		*/
-	mtdcr( 0x10, 0x00000056 );
-	mtdcr( 0x11, 0x82100400 );
-
-	/* SET MCIF0_INITPLR7  # Refresh	*/
-	mtdcr( 0x10, 0x00000057 );
-	mtdcr( 0x11, 0x8A080000 );
-
-	/* SET MCIF0_INITPLR8  # Refresh	*/
-	mtdcr( 0x10, 0x00000058 );
-	mtdcr( 0x11, 0x8A080000 );
-
-	/* SET MCIF0_INITPLR9  # Refresh	*/
-	mtdcr( 0x10, 0x00000059 );
-	mtdcr( 0x11, 0x8A080000 );
-
-	/* SET MCIF0_INITPLR10 # Refresh	*/
-	mtdcr( 0x10, 0x0000005A );
-	mtdcr( 0x11, 0x8A080000 );
-
-	/* SET MCIF0_INITPLR11 # MR		*/
-	mtdcr( 0x10, 0x0000005B );
-	mtdcr( 0x11, 0x80800442 );
-
-	/* SET MCIF0_INITPLR12 # EMR OCD Default*/
-	mtdcr( 0x10, 0x0000005C );
-	mtdcr( 0x11, 0x80810380 );
-
-	/* SET MCIF0_INITPLR13 # EMR OCD Exit	*/
-	mtdcr( 0x10, 0x0000005D );
-	mtdcr( 0x11, 0x80810000 );
-
-	/* 0x80: Adv Addr clock by 180 deg	*/
-	mtdcr( 0x10, 0x00000080 );
-	mtdcr( 0x11, 0x80000000 );
-
-	/* 0x21: Exit self refresh, set DC_EN	*/
-	mtdcr( 0x10, 0x00000021 );
-	mtdcr( 0x11, 0x28000000 );
-
-	/* 0x81: Write DQS Adv 90 + Fractional DQS Delay	*/
-	mtdcr( 0x10, 0x00000081 );
-	mtdcr( 0x11, 0x80000800 );
-
-	/* MCIF0_SDTR1	*/
-	mtdcr( 0x10, 0x00000085 );
-	mtdcr( 0x11, 0x80201000 );
-
-	/* MCIF0_SDTR2	*/
-	mtdcr( 0x10, 0x00000086 );
-	mtdcr( 0x11, 0x42103242 );
-
-	/* MCIF0_SDTR3	*/
-	mtdcr( 0x10, 0x00000087 );
-	mtdcr( 0x11, 0x0C100D14 );
-
-	/* SET MQ0_B0BAS  base addr 00000000 / 256MB	*/
-	mtdcr( 0x40, 0x0000F800 );
-
-	/* SET MQ0_B1BAS  base addr 10000000 / 256MB	*/
-	mtdcr( 0x41, 0x0400F800 );
-
-	/* SET MQ0_B2BAS  base addr 20000000 / 256MB	*/
-	if (yucca_dimms == 2)
-		mtdcr( 0x42, 0x0800F800 );
-	else if (yucca_dimms == 1)
-		mtdcr( 0x42, 0x00000000 );
-
-	/* SET MQ0_B3BAS  base addr 30000000 / 256MB	*/
-	if (yucca_dimms == 2)
-		mtdcr( 0x43, 0x0C00F800 );
-	else if (yucca_dimms == 1)
-		mtdcr( 0x43, 0x00000000 );
-
-	/* SDRAM_RQDC	*/
-	mtdcr( 0x10, 0x00000070 );
-	mtdcr( 0x11, 0x8000003F );
-
-	/* SDRAM_RDCC	*/
-	mtdcr( 0x10, 0x00000078 );
-	mtdcr( 0x11, 0x80000000 );
-
-	/* SDRAM_RFDC	*/
-	mtdcr( 0x10, 0x00000074 );
-	mtdcr( 0x11, 0x00000220 );
-
-	return (yucca_dimms * 512) << 20;
-}
-
-long int initdram (int board_type)
-{
-	long dram_size = 0;
-
-	dram_size = fixed_sdram();
-
-	return dram_size;
-}
-
 #if defined(CFG_DRAM_TEST)
 int testdram (void)
 {
@@ -1267,42 +994,3 @@ int onboard_pci_arbiter_selected(int core_pci)
 #endif
 	return (BOARD_OPTION_NOT_SELECTED);
 }
-
-/*---------------------------------------------------------------------------+
- | ppcMfcpr.
- +---------------------------------------------------------------------------*/
-unsigned long ppcMfcpr(unsigned long cpr_reg)
-{
-	unsigned long msr;
-	unsigned long cpr_cfgaddr_temp;
-	unsigned long cpr_value;
-
-	msr = (mfmsr () & ~(MSR_EE));
-	cpr_cfgaddr_temp =  mfdcr(CPR0_CFGADDR);
-	mtdcr(CPR0_CFGADDR, cpr_reg);
-	cpr_value =  mfdcr(CPR0_CFGDATA);
-	mtdcr(CPR0_CFGADDR, cpr_cfgaddr_temp);
-	mtmsr(msr);
-
-	return (cpr_value);
-}
-
-/*----------------------------------------------------------------------------+
-| Indirect Access of the System DCR's (SDR)
-| ppcMfsdr
-+----------------------------------------------------------------------------*/
-unsigned long ppcMfsdr(unsigned long sdr_reg)
-{
-	unsigned long msr;
-	unsigned long sdr_cfgaddr_temp;
-	unsigned long sdr_value;
-
-	msr = (mfmsr () & ~(MSR_EE));
-	sdr_cfgaddr_temp =  mfdcr(SDR0_CFGADDR);
-	mtdcr(SDR0_CFGADDR, sdr_reg);
-	sdr_value =  mfdcr(SDR0_CFGDATA);
-	mtdcr(SDR0_CFGADDR, sdr_cfgaddr_temp);
-	mtmsr(msr);
-
-	return (sdr_value);
-}
diff --git a/include/configs/yucca.h b/include/configs/yucca.h
index 6417ed891d..eb4859c3e9 100644
--- a/include/configs/yucca.h
+++ b/include/configs/yucca.h
@@ -45,11 +45,11 @@
 #define EXTCLK_50		50000000
 #define EXTCLK_83		83333333
 
-#define	CONFIG_IBM_EMAC4_V4		1
-#define	CONFIG_MISC_INIT_F		1	/* Use misc_init_f()	*/
+#define	CONFIG_MISC_INIT_F	1	/* Use misc_init_f()		*/
+#define CONFIG_ADD_RAM_INFO	1	/* Print additional info	*/
 #undef  CONFIG_SHOW_BOOT_PROGRESS
 #undef  CONFIG_STRESS
-#undef  ENABLE_ECC
+
 /*-----------------------------------------------------------------------
  * Base addresses -- Note these are effective addresses where the
  * actual resources get mapped (not physical addresses)
@@ -118,10 +118,9 @@
 /*-----------------------------------------------------------------------
  * DDR SDRAM
  *----------------------------------------------------------------------*/
-#undef CONFIG_SPD_EEPROM		/* Use SPD EEPROM for setup	*/
-#define SPD_EEPROM_ADDRESS {0x53, 0x52}	/* SPD i2c spd addresses	*/
-#define IIC0_DIMM0_ADDR		0x53
-#define IIC0_DIMM1_ADDR		0x52
+#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	*/
 
 /*-----------------------------------------------------------------------
  * I2C
@@ -211,6 +210,7 @@
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
 #include <cmd_confdefs.h>
 
+#define	CONFIG_IBM_EMAC4_V4	1
 #define CONFIG_MII		1	/* MII PHY management		*/
 #undef CONFIG_NET_MULTI
 #define CONFIG_PHY_ADDR		1	/* PHY address, See schematics	*/

From 00cdb4ce5e1b42248e7e6522ad0da3421b988afa Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Thu, 8 Mar 2007 10:13:16 +0100
Subject: [PATCH 4/4] [PATCH] Update AMCC Luan 440SP eval board support

The AMCC Luan now uses the common 440SP(e) DDR SPD code for DDR
inititializition. This includes DDR auto calibration and support
for different DIMM modules, instead of the fixed setup used in
the earlier version.

This patch also enables the cache in FLASH for the startup
phase of U-Boot (while running from FLASH). After relocating to
SDRAM the cache is disabled again. This will speed up the boot
process, especially the SDRAM setup, since there are some loops
for memory testing (auto calibration).

Signed-off-by: Stefan Roese <sr@denx.de>
---
 board/amcc/luan/init.S     | 158 ++++++++++++-------------------------
 board/amcc/luan/luan.c     |  99 -----------------------
 board/amcc/luan/u-boot.lds |  13 ---
 cpu/ppc4xx/start.S         |   2 +-
 include/configs/luan.h     |  18 ++---
 5 files changed, 56 insertions(+), 234 deletions(-)

diff --git a/board/amcc/luan/init.S b/board/amcc/luan/init.S
index 7830ebdfa6..d5ee117dfa 100644
--- a/board/amcc/luan/init.S
+++ b/board/amcc/luan/init.S
@@ -1,73 +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_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
@@ -80,53 +38,37 @@
  *
  *************************************************************************/
 
-    .section .bootpg,"ax"
-    .globl tlbtab
+	.section .bootpg,"ax"
+	.globl tlbtab
 
 tlbtab:
-    tlbtab_start
+	tlbtab_start
 
-#if (CFG_LARGE_FLASH == 0xffc00000)	/* if booting from large flash */
-    /* large flash */
-    tlbentry( 0xffc00000,         SZ_1M, 0xffc00000,          1, AC_R|AC_W|AC_X|SA_G|SA_I|SA_W )
-    tlbentry( 0xffd00000,         SZ_1M, 0xffd00000,          1, AC_R|AC_W|AC_X|SA_G|SA_I|SA_W )
-    tlbentry( 0xffe00000,         SZ_1M, 0xffe00000,          1, AC_R|AC_W|AC_X|SA_G|SA_I|SA_W )
-    tlbentry( 0xfff00000,         SZ_1M, 0xfff00000,          1, AC_R|AC_W|AC_X|SA_G|SA_I|SA_W )
+	/*
+	 * 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(0xfff00000, SZ_1M, 0xfff00000, 1, AC_R|AC_W|AC_X|SA_G)
 
-    tlbentry( 0xff800000,         SZ_1M, 0xff800000,          1, AC_R|AC_W|AC_X|SA_G/*|SA_I*/ )
-    tlbentry( 0xff900000,         SZ_1M, 0xff900000,          1, AC_R|AC_W|AC_X|SA_G|SA_I|SA_W )
-#else					/* else booting from small flash */
-    tlbentry( 0xffe00000,         SZ_1M, 0xffe00000,          1, AC_R|AC_W|AC_X|SA_G/*|SA_I*/ )
-    tlbentry( 0xfff00000,         SZ_1M, 0xfff00000,          1, AC_R|AC_W|AC_X|SA_G/*|SA_I*/ )
+	tlbentry(0xffc00000, SZ_1M, 0xffc00000, 1, AC_R|AC_W|AC_X|SA_G|SA_I)
+	tlbentry(0xffd00000, SZ_1M, 0xffd00000, 1, AC_R|AC_W|AC_X|SA_G|SA_I)
+	tlbentry(0xffe00000, SZ_1M, 0xffe00000, 1, AC_R|AC_W|AC_X|SA_G|SA_I)
+	tlbentry(0xff900000, SZ_1M, 0xff900000, 1, AC_R|AC_W|AC_X|SA_G|SA_I)
+	tlbentry(CFG_EPLD_BASE, SZ_256K, 0xff000000, 1, AC_R|AC_W|SA_G|SA_I)
 
-    tlbentry( 0xff800000,         SZ_1M, 0xff800000,          1, AC_R|AC_W|AC_X|SA_G/*|SA_I*/ )
-    tlbentry( 0xff900000,         SZ_1M, 0xff900000,          1, AC_R|AC_W|AC_X|SA_G/*|SA_I*/ )
-    tlbentry( 0xffa00000,         SZ_1M, 0xffa00000,          1, AC_R|AC_W|AC_X|SA_G/*|SA_I*/ )
-    tlbentry( 0xffb00000,         SZ_1M, 0xffb00000,          1, AC_R|AC_W|AC_X|SA_G/*|SA_I*/ )
-#endif
+	/*
+	 * TLB entries for SDRAM are not needed on this platform.
+	 * They are dynamically generated in the SPD DDR(2) detection
+	 * routine.
+	 */
 
-    tlbentry( CFG_EPLD_BASE,    SZ_256K, 0xff000000,          1, AC_R|AC_W|SA_G|SA_I )
+	/* internal ram (l2 cache) */
+	tlbentry(CFG_ISRAM_BASE, SZ_256K, 0x80000000, 0, AC_R|AC_W|AC_X|SA_I)
 
-#if (CFG_SRAM_BASE != 0)		/* if SRAM up high and SDRAM at zero */
-    tlbentry( 0x00000000, SZ_256M, 0x00000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I )
-    tlbentry( 0x10000000, SZ_256M, 0x10000000, 0, AC_R|AC_W|AC_X|SA_G|SA_I )
-#elif (CFG_SMALL_FLASH == 0xff900000)	/* else SRAM at 0 */
-    tlbentry( 0x00000000,   SZ_1M, 0xff800000, 1, AC_R|AC_W|AC_X|SA_G/*|SA_I*/ )
-#elif (CFG_SMALL_FLASH == 0xfff00000)
-    tlbentry( 0x00000000,   SZ_1M, 0xffe00000, 1, AC_R|AC_W|AC_X|SA_G/*|SA_I*/ )
-#else
-    #error DONT KNOW SRAM LOCATION
-#endif
+	/* peripherals at f0000000 */
+	tlbentry(CFG_PERIPHERAL_BASE, SZ_4K, CFG_PERIPHERAL_BASE, 1, AC_R|AC_W|SA_G|SA_I)
 
-    /* internal ram (l2 cache) */
-    tlbentry( CFG_ISRAM_BASE,    SZ_256K, 0x80000000,      0, AC_R|AC_W|AC_X|SA_I )
-
-    /* peripherals at f0000000 */
-    tlbentry( CFG_PERIPHERAL_BASE, SZ_4K, CFG_PERIPHERAL_BASE, 1, AC_R|AC_W|SA_G|SA_I )
-
-    /* PCI */
-#if (CONFIG_COMMANDS & CFG_CMD_PCI)
-    tlbentry( CFG_PCI_BASE,    SZ_256M, 0x00000000, 9, AC_R|AC_W|SA_G|SA_I )
-    tlbentry( CFG_PCI_MEMBASE, SZ_256M, 0x10000000, 9, AC_R|AC_W|SA_G|SA_I )
-#endif
-    tlbtab_end
+	/* PCI */
+	tlbentry(CFG_PCI_BASE, SZ_256M, 0x00000000, 9, AC_R|AC_W|SA_G|SA_I)
+	tlbentry(CFG_PCI_MEMBASE, SZ_256M, 0x10000000, 9, AC_R|AC_W|SA_G|SA_I)
+	tlbtab_end
diff --git a/board/amcc/luan/luan.c b/board/amcc/luan/luan.c
index 06a57f6c4a..778aafc766 100644
--- a/board/amcc/luan/luan.c
+++ b/board/amcc/luan/luan.c
@@ -105,105 +105,6 @@ int checkboard(void)
 }
 
 
-/*************************************************************************
- *  long int fixed_sdram()
- *
- ************************************************************************/
-static long int fixed_sdram(void)
-{					/* DDR2 init from BDI2000 script */
-	mtdcr( 0x10, 0x00000021 );	/* MCIF0_MCOPT2 - zero DCEN bit */
-	mtdcr( 0x11, 0x84000000 );
-	mtdcr( 0x10, 0x00000020 );	/* MCIF0_MCOPT1 - no ECC, 64 bits, 4 banks, DDR2 */
-	mtdcr( 0x11, 0x2D122000 );
-	mtdcr( 0x10, 0x00000026 );	/* MCIF0_CODT  - die termination on */
-	mtdcr( 0x11, 0x00800026 );
-	mtdcr( 0x10, 0x00000081 );	/* MCIF0_WRDTR - Write DQS Adv 90 + Fractional DQS Delay */
-	mtdcr( 0x11, 0x82000800 );
-	mtdcr( 0x10, 0x00000080 );	/* MCIF0_CLKTR - advance addr clock by 180 deg */
-	mtdcr( 0x11, 0x80000000 );
-	mtdcr( 0x10, 0x00000040 );	/* MCIF0_MB0CF - turn on CS0, N x 10 coll */
-	mtdcr( 0x11, 0x00000201 );
-	mtdcr( 0x10, 0x00000044 );	/* MCIF0_MB1CF - turn on CS0, N x 10 coll */
-	mtdcr( 0x11, 0x00000201 );
-	mtdcr( 0x10, 0x00000030 );	/* MCIF0_RTR   - refresh every 7.8125uS */
-	mtdcr( 0x11, 0x08200000 );
-	mtdcr( 0x10, 0x00000085 );	/* MCIF0_SDTR1 - timing register 1 */
-	mtdcr( 0x11, 0x80201000 );
-	mtdcr( 0x10, 0x00000086 );	/* MCIF0_SDTR2 - timing register 2 */
-	mtdcr( 0x11, 0x42103242 );
-	mtdcr( 0x10, 0x00000087 );	/* MCIF0_SDTR3 - timing register 3 */
-	mtdcr( 0x11, 0x0C100D14 );
-	mtdcr( 0x10, 0x00000088 );	/* MCIF0_MMODE - CAS is 4 cycles */
-	mtdcr( 0x11, 0x00000642 );
-	mtdcr( 0x10, 0x00000089 );	/* MCIF0_MEMODE - diff DQS disabled */
-	mtdcr( 0x11, 0x00000400 );	/*		  ODT term disabled */
-
-	mtdcr( 0x10, 0x00000050 );	/* MCIF0_INITPLR0 - NOP */
-	mtdcr( 0x11, 0x81b80000 );
-	mtdcr( 0x10, 0x00000051 );	/* MCIF0_INITPLR1 - PRE */
-	mtdcr( 0x11, 0x82100400 );
-	mtdcr( 0x10, 0x00000052 );	/* MCIF0_INITPLR2 - EMR2 */
-	mtdcr( 0x11, 0x80820000 );
-	mtdcr( 0x10, 0x00000053 );	/* MCIF0_INITPLR3 - EMR3 */
-	mtdcr( 0x11, 0x80830000 );
-	mtdcr( 0x10, 0x00000054 );	/* MCIF0_INITPLR4 - EMR DLL ENABLE */
-	mtdcr( 0x11, 0x80810000 );
-	mtdcr( 0x10, 0x00000055 );	/* MCIF0_INITPLR5 - MR DLL RESET */
-	mtdcr( 0x11, 0x80800542 );
-	mtdcr( 0x10, 0x00000056 );	/* MCIF0_INITPLR6 - PRE */
-	mtdcr( 0x11, 0x82100400 );
-	mtdcr( 0x10, 0x00000057 );	/* MCIF0_INITPLR7 - refresh */
-	mtdcr( 0x11, 0x99080000 );
-	mtdcr( 0x10, 0x00000058 );	/* MCIF0_INITPLR8 */
-	mtdcr( 0x11, 0x99080000 );
-	mtdcr( 0x10, 0x00000059 );	/* MCIF0_INITPLR9 */
-	mtdcr( 0x11, 0x99080000 );
-	mtdcr( 0x10, 0x0000005A );	/* MCIF0_INITPLR10 */
-	mtdcr( 0x11, 0x99080000 );
-	mtdcr( 0x10, 0x0000005B );	/* MCIF0_INITPLR11 - MR */
-	mtdcr( 0x11, 0x80800442 );
-	mtdcr( 0x10, 0x0000005C );	/* MCIF0_INITPLR12 - EMR OCD Default */
-	mtdcr( 0x11, 0x80810380 );
-	mtdcr( 0x10, 0x0000005D );	/* MCIF0_INITPLR13 - EMR OCD exit */
-	mtdcr( 0x11, 0x80810000 );
-	udelay( 10*1000 );
-
-	mtdcr( 0x10, 0x00000021 );	/* MCIF0_MCOPT2 - execute preloaded init */
-	mtdcr( 0x11, 0x28000000 );	/*		  set DC_EN */
-	udelay( 100*1000 );
-
-	mtdcr( 0x40, 0x0000F800 );	/* MQ0_B0BAS: base addr 00000000 / 256MB */
-	mtdcr( 0x41, 0x1000F800 );	/* MQ0_B1BAS: base addr 10000000 / 256MB */
-
-	mtdcr( 0x10, 0x00000078 );	/* MCIF0_RDCC - auto set read stage */
-	mtdcr( 0x11, 0x00000000 );
-	mtdcr( 0x10, 0x00000070 );	/* MCIF0_RQDC - read DQS delay control */
-	mtdcr( 0x11, 0x8000003A );	/*		enabled, frac DQS delay */
-	mtdcr( 0x10, 0x00000074 );	/* MCIF0_RFDC - two clock feedback delay */
-	mtdcr( 0x11, 0x00000200 );
-
-	return  512 << 20;
-}
-
-
-/*************************************************************************
- *  long int initdram
- *
- ************************************************************************/
-long int initdram( int board_type )
-{
-	long dram_size = 0;
-
-#if defined(CONFIG_SPD_EEPROM)
-	dram_size = spd_sdram (0);
-#else
-	dram_size = fixed_sdram ();
-#endif
-
-	return  dram_size;
-}
-
-
 /*************************************************************************
  *  int testdram()
  *
diff --git a/board/amcc/luan/u-boot.lds b/board/amcc/luan/u-boot.lds
index d122f499f1..72ce6855d7 100644
--- a/board/amcc/luan/u-boot.lds
+++ b/board/amcc/luan/u-boot.lds
@@ -68,19 +68,6 @@ SECTIONS
 
     cpu/ppc4xx/start.o	(.text)
     board/amcc/luan/init.o	(.text)
-    cpu/ppc4xx/kgdb.o	(.text)
-    cpu/ppc4xx/traps.o	(.text)
-    cpu/ppc4xx/interrupts.o	(.text)
-    cpu/ppc4xx/serial.o	(.text)
-    cpu/ppc4xx/cpu_init.o	(.text)
-    cpu/ppc4xx/speed.o	(.text)
-    common/dlmalloc.o	(.text)
-    lib_generic/crc32.o		(.text)
-    lib_ppc/extable.o	(.text)
-    lib_generic/zlib.o		(.text)
-
-/*    . = env_offset;*/
-/*    common/environment.o(.text)*/
 
     *(.text)
     *(.fixup)
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 24b30dfe71..1301cd26d8 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -1361,7 +1361,7 @@ ppcSync:
 relocate_code:
 #if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
     defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
-    defined(CONFIG_440SPE)
+    defined(CONFIG_440SP) || defined(CONFIG_440SPE)
 	/*
 	 * On some 440er platforms the cache is enabled in the first TLB (Boot-CS)
 	 * to speed up the boot process. Now this cache needs to be disabled.
diff --git a/include/configs/luan.h b/include/configs/luan.h
index 5c9d208feb..9c8769b200 100644
--- a/include/configs/luan.h
+++ b/include/configs/luan.h
@@ -37,8 +37,9 @@
 #define CONFIG_440		1
 #define CONFIG_SYS_CLK_FREQ	33333333 /* external freq to pll	*/
 
-#define CONFIG_BOARD_EARLY_INIT_F 1     /* call board_early_init_f()	*/
+#define CONFIG_BOARD_EARLY_INIT_F 1	/* call board_early_init_f()	*/
 #define CONFIG_MISC_INIT_R	1	/* call misc_init_r()		*/
+#define CONFIG_ADD_RAM_INFO	1	/* Print additional info	*/
 
 /*-----------------------------------------------------------------------
  * Base addresses -- Note these are effective addresses where the
@@ -132,10 +133,9 @@
 /*-----------------------------------------------------------------------
  * DDR SDRAM
  *----------------------------------------------------------------------*/
-#undef  CONFIG_SPD_EEPROM		/* SPD EEPROM init doesn't support DDR2 */
-#define SPD_EEPROM_ADDRESS {0x52,0x53}	/* I2C SPD addresses */
-#define IIC0_DIMM0_ADDR         0x52
-#define IIC0_DIMM1_ADDR         0x53
+#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	*/
 
 /*-----------------------------------------------------------------------
  * I2C
@@ -206,11 +206,6 @@
 #define CONFIG_NETCONSOLE		/* include NetConsole support	*/
 #define CONFIG_NET_MULTI		/* needed for NetConsole	*/
 
-/* Partitions */
-#define CONFIG_MAC_PARTITION
-#define CONFIG_DOS_PARTITION
-#define CONFIG_ISO_PARTITION
-
 #ifdef DEBUG
 #define CONFIG_PANIC_HANG
 #else
@@ -219,9 +214,7 @@
 
 #define CONFIG_COMMANDS	       (CONFIG_CMD_DFL		|	\
 				CFG_CMD_ASKENV		|	\
-			        CFG_CMD_CACHE		|	\
 				CFG_CMD_DHCP		|	\
-				CFG_CMD_DIAG		|	\
 				CFG_CMD_ELF		|	\
 				CFG_CMD_EEPROM		|	\
 				CFG_CMD_I2C		|	\
@@ -232,7 +225,6 @@
 				CFG_CMD_PCI		|	\
 				CFG_CMD_PING		|	\
 				CFG_CMD_REGINFO		|	\
-				CFG_CMD_SETGETDCR	|	\
 				CFG_CMD_SDRAM		|	\
 				0)