[U-Boot] [PATCH 09/24] FSL DDR: Convert MPC8568MDS to new DDR code.

[Kumar Gala <galak@kernel.crashing.org>]

From: Jon Loeliger <jdl@freescale.com>

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
 board/freescale/mpc8568mds/Makefile     |   14 ++++--
 board/freescale/mpc8568mds/ddr.c        |   81 +++++++++++++++++++++++++++++++
 board/freescale/mpc8568mds/mpc8568mds.c |    8 +++-
 include/configs/MPC8568MDS.h            |   38 ++++++++-------
 4 files changed, 117 insertions(+), 24 deletions(-)
 create mode 100644 board/freescale/mpc8568mds/ddr.c

diff --git a/board/freescale/mpc8568mds/Makefile b/board/freescale/mpc8568mds/Makefile
index ecdc4d3..d499fb3 100644
--- a/board/freescale/mpc8568mds/Makefile
+++ b/board/freescale/mpc8568mds/Makefile
@@ -26,11 +26,15 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	:= $(BOARD).o bcsr.o law.o tlb.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
+COBJS-y	+= $(BOARD).o
+COBJS-y	+= bcsr.o
+COBJS-y	+= ddr.o
+COBJS-y	+= law.o
+COBJS-y	+= tlb.o
+
+SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y))
+SOBJS	:= $(addprefix $(obj),$(SOBJS-y))
 
 $(LIB):	$(obj).depend $(OBJS) $(SOBJS)
 	$(AR) $(ARFLAGS) $@ $(OBJS)
diff --git a/board/freescale/mpc8568mds/ddr.c b/board/freescale/mpc8568mds/ddr.c
new file mode 100644
index 0000000..1b8ecec
--- /dev/null
+++ b/board/freescale/mpc8568mds/ddr.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#include <common.h>
+#include <i2c.h>
+
+#include <asm/fsl_ddr_sdram.h>
+
+static void
+get_spd(ddr2_spd_eeprom_t *spd, unsigned char i2c_address)
+{
+	i2c_read(i2c_address, 0, 1, (uchar *)spd, sizeof(ddr2_spd_eeprom_t));
+}
+
+
+unsigned int fsl_ddr_get_mem_data_rate(void)
+{
+	return get_ddr_freq(0);
+}
+
+void fsl_ddr_get_spd(ddr2_spd_eeprom_t *ctrl_dimms_spd,
+		      unsigned int ctrl_num)
+{
+	unsigned int i;
+
+	if (ctrl_num) {
+		printf("%s unexpected ctrl_num = %u\n", __FUNCTION__, ctrl_num);
+		return;
+	}
+
+	for (i = 0; i < CONFIG_DIMM_SLOTS_PER_CTLR; i++) {
+		get_spd(&(ctrl_dimms_spd[i]), SPD_EEPROM_ADDRESS);
+	}
+}
+
+void fsl_ddr_board_options(memctl_options_t *popts, unsigned int ctrl_num)
+{
+	/*
+	 * Factors to consider for clock adjust:
+	 *	- number of chips on bus
+	 *	- position of slot
+	 *	- DDR1 vs. DDR2?
+	 *	- ???
+	 *
+	 * This needs to be determined on a board-by-board basis.
+	 *	0110	3/4 cycle late
+	 *	0111	7/8 cycle late
+	 */
+	popts->clk_adjust = 6;
+
+	/*
+	 * Factors to consider for CPO:
+	 *	- frequency
+	 *	- ddr1 vs. ddr2
+	 */
+	popts->cpo_override = 10;
+
+	/*
+	 * Factors to consider for write data delay:
+	 *	- number of DIMMs
+	 *
+	 * 1 = 1/4 clock delay
+	 * 2 = 1/2 clock delay
+	 * 3 = 3/4 clock delay
+	 * 4 = 1   clock delay
+	 * 5 = 5/4 clock delay
+	 * 6 = 3/2 clock delay
+	 */
+	popts->write_data_delay = 3;
+
+	/*
+	 * Factors to consider for half-strength driver enable:
+	 *	- number of DIMMs installed
+	 */
+	popts->half_strength_driver_enable = 0;
+}
diff --git a/board/freescale/mpc8568mds/mpc8568mds.c b/board/freescale/mpc8568mds/mpc8568mds.c
index 2ccff7d..f9e35cc 100644
--- a/board/freescale/mpc8568mds/mpc8568mds.c
+++ b/board/freescale/mpc8568mds/mpc8568mds.c
@@ -25,8 +25,10 @@
 #include <common.h>
 #include <pci.h>
 #include <asm/processor.h>
+#include <asm/mmu.h>
 #include <asm/immap_85xx.h>
 #include <asm/immap_fsl_pci.h>
+#include <asm/fsl_ddr_sdram.h>
 #include <spd_sdram.h>
 #include <i2c.h>
 #include <ioports.h>
@@ -163,7 +165,10 @@ initdram(int board_type)
 		udelay(200);
 	}
 #endif
-	dram_size = spd_sdram();
+
+	dram_size = fsl_ddr_sdram();
+	dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+	dram_size *= 0x100000;
 
 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
 	/*
@@ -171,6 +176,7 @@ initdram(int board_type)
 	 */
 	ddr_enable_ecc(dram_size);
 #endif
+
 	/*
 	 * SDRAM Initialization
 	 */
diff --git a/include/configs/MPC8568MDS.h b/include/configs/MPC8568MDS.h
index a82d528..8aeaa29 100644
--- a/include/configs/MPC8568MDS.h
+++ b/include/configs/MPC8568MDS.h
@@ -41,14 +41,6 @@
 #define CONFIG_TSEC_ENET		/* tsec ethernet support */
 #define CONFIG_QE			/* Enable QE */
 #define CONFIG_ENV_OVERWRITE
-#define CONFIG_SPD_EEPROM		/* Use SPD EEPROM for DDR setup*/
-#define CONFIG_DDR_DLL			/* possible DLL fix needed */
-/*#define CONFIG_DDR_2T_TIMING		 Sets the 2T timing bit */
-
-/*#define CONFIG_DDR_ECC*/			/* only for ECC DDR module */
-/*#define CONFIG_ECC_INIT_VIA_DDRCONTROLLER*/	/* DDR controller or DMA? */
-#define CONFIG_MEM_INIT_VALUE		0xDeadBeef
-
 #define CONFIG_FSL_LAW		1	/* Use common FSL init code */
 
 /*
@@ -58,8 +50,6 @@
  */
 #define CONFIG_ASSUME_AMD_FLASH
 
-#define MPC85xx_DDR_SDRAM_CLK_CNTL	/* 85xx has clock control reg */
-
 #ifndef __ASSEMBLY__
 extern unsigned long get_clock_freq(void);
 #endif						  /*Replace a call to get_clock_freq (after it is implemented)*/
@@ -95,24 +85,33 @@ extern unsigned long get_clock_freq(void);
 #define CFG_PCI1_ADDR           (CFG_CCSRBAR+0x8000)
 #define CFG_PCIE1_ADDR          (CFG_CCSRBAR+0xa000)
 
-/*
- * DDR Setup
- */
+/* DDR Setup */
+#define CONFIG_FSL_DDR2
+#undef CONFIG_FSL_DDR_INTERACTIVE
+#define CONFIG_SPD_EEPROM		/* Use SPD EEPROM for DDR setup*/
+#define CONFIG_DDR_SPD
+#define CONFIG_DDR_DLL			/* possible DLL fix needed */
+#undef CONFIG_ECC_INIT_VIA_DDRCONTROLLER	/* DDR controller or DMA? */
+
+#define CONFIG_MEM_INIT_VALUE	0xDeadBeef
+
 #define CFG_DDR_SDRAM_BASE	0x00000000	/* DDR is system memory*/
 #define CFG_SDRAM_BASE		CFG_DDR_SDRAM_BASE
 
-#define SPD_EEPROM_ADDRESS	0x51		/* DDR DIMM */
+#define CONFIG_NUM_DDR_CONTROLLERS	1
+#define CONFIG_DIMM_SLOTS_PER_CTLR	1
+#define CONFIG_CHIP_SELECTS_PER_CTRL	(2 * CONFIG_DIMM_SLOTS_PER_CTLR)
 
-/*
- * Make sure required options are set
- */
+/* I2C addresses of SPD EEPROMs */
+#define SPD_EEPROM_ADDRESS	0x51	/* CTLR 0 DIMM 0 */
+
+/* Make sure required options are set */
 #ifndef CONFIG_SPD_EEPROM
 #error ("CONFIG_SPD_EEPROM is required")
 #endif
 
 #undef CONFIG_CLOCKS_IN_MHZ
 
-
 /*
  * Local Bus Definitions
  */
@@ -302,6 +301,9 @@ extern unsigned long get_clock_freq(void);
 #define CONFIG_OF_BOARD_SETUP		1
 #define CONFIG_OF_STDOUT_VIA_ALIAS	1
 
+#define CFG_64BIT_VSPRINTF	1
+#define CFG_64BIT_STRTOUL	1
+
 /*
  * I2C
  */
-- 
1.5.5.1