FSL DDR: Convert MPC8540ADS to new DDR code.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

4 files changed, 107 insertions, 37 deletions

diff --git a/board/freescale/mpc8540ads/Makefile b/board/freescale/mpc8540ads/Makefile
index 2d71cbc51..4c6da4d80 100644
--- a/board/freescale/mpc8540ads/Makefile
+++ b/board/freescale/mpc8540ads/Makefile
@@ -25,11 +25,14 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	:= $(BOARD).o law.o tlb.o
+COBJS-y	+= $(BOARD).o
+COBJS-y	+= ddr.o
+COBJS-y	+= law.o
+COBJS-y	+= tlb.o
 
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
+SRCS	:= $(SOBJS:.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/mpc8540ads/ddr.c b/board/freescale/mpc8540ads/ddr.c
new file mode 100644
index 000000000..45372f427
--- /dev/null
+++ b/board/freescale/mpc8540ads/ddr.c
@@ -0,0 +1,70 @@
+/*
+ * 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(ddr1_spd_eeprom_t *spd, unsigned char i2c_address)
+{
+	i2c_read(i2c_address, 0, 1, (uchar *)spd, sizeof(ddr1_spd_eeprom_t));
+}
+
+
+unsigned int
+fsl_ddr_get_mem_data_rate(void)
+{
+	return get_ddr_freq(0);
+}
+
+
+void
+fsl_ddr_get_spd(ddr1_spd_eeprom_t *ctrl_dimms_spd,
+		      unsigned int ctrl_num)
+{
+	unsigned int i;
+	unsigned int i2c_address = 0;
+
+	for (i = 0; i < CONFIG_DIMM_SLOTS_PER_CTLR; i++) {
+		if (ctrl_num == 0 && i == 0) {
+			i2c_address = SPD_EEPROM_ADDRESS;
+		}
+		get_spd(&(ctrl_dimms_spd[i]), i2c_address);
+	}
+}
+
+void fsl_ddr_board_options(memctl_options_t *popts, unsigned int ctrl_num)
+{
+	/*
+	 * Factors to consider for CPO:
+	 *	- frequency
+	 *	- ddr1 vs. ddr2
+	 */
+	popts->cpo_override = 0;
+
+	/*
+	 * 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/mpc8540ads/mpc8540ads.c b/board/freescale/mpc8540ads/mpc8540ads.c
index 4f068cc88..005e4d97e 100644
--- a/board/freescale/mpc8540ads/mpc8540ads.c
+++ b/board/freescale/mpc8540ads/mpc8540ads.c
@@ -1,4 +1,4 @@
- /*
+/*
  * Copyright 2004 Freescale Semiconductor.
  * (C) Copyright 2002,2003, Motorola Inc.
  * Xianghua Xiao, (X.Xiao@motorola.com)
@@ -28,8 +28,9 @@
 #include <common.h>
 #include <pci.h>
 #include <asm/processor.h>
+#include <asm/mmu.h>
 #include <asm/immap_85xx.h>
-#include <spd_sdram.h>
+#include <asm/fsl_ddr_sdram.h>
 #include <libfdt.h>
 #include <fdt_support.h>
 
@@ -82,10 +83,13 @@ initdram(int board_type)
 	}
 #endif
 
-#if defined(CONFIG_SPD_EEPROM)
-	dram_size = spd_sdram ();
+#ifdef CONFIG_SPD_EEPROM
+	dram_size = fsl_ddr_sdram();
+	dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+
+	dram_size *= 0x100000;
 #else
-	dram_size = fixed_sdram ();
+	dram_size = fixed_sdram();
 #endif
 
 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
diff --git a/include/configs/MPC8540ADS.h b/include/configs/MPC8540ADS.h
index 6351925d7..74f860536 100644
--- a/include/configs/MPC8540ADS.h
+++ b/include/configs/MPC8540ADS.h
@@ -48,13 +48,6 @@
 #define CONFIG_PCI
 #define CONFIG_TSEC_ENET		/* tsec ethernet support */
 #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_MEM_INIT_VALUE		0xDeadBeef
-
 #define CONFIG_FSL_LAW		1	/* Use common FSL init code */
 
 /*
@@ -100,33 +93,33 @@
 #define CFG_CCSRBAR_PHYS	CFG_CCSRBAR	/* physical addr of CCSRBAR */
 #define CFG_IMMR		CFG_CCSRBAR	/* PQII uses CFG_IMMR */
 
+/* DDR Setup */
+#define CONFIG_FSL_DDR1
+#define CONFIG_SPD_EEPROM		/* Use SPD EEPROM for DDR setup*/
+#define CONFIG_DDR_SPD
+#undef CONFIG_FSL_DDR_INTERACTIVE
+
+#define CONFIG_MEM_INIT_VALUE		0xDeadBeef
 
-/*
- * DDR Setup
- */
 #define CFG_DDR_SDRAM_BASE	0x00000000	/* DDR is system memory*/
 #define CFG_SDRAM_BASE		CFG_DDR_SDRAM_BASE
 
-#if defined(CONFIG_SPD_EEPROM)
-    /*
-     * Determine DDR configuration from I2C interface.
-     */
-    #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)
 
-#else
-    /*
-     * Manually set up DDR parameters
-     */
-    #define CFG_SDRAM_SIZE	128		/* DDR is 128MB */
-    #define CFG_DDR_CS0_BNDS	0x00000007	/* 0-128MB */
-    #define CFG_DDR_CS0_CONFIG	0x80000002
-    #define CFG_DDR_TIMING_1	0x37344321
-    #define CFG_DDR_TIMING_2	0x00000800	/* P9-45,may need tuning */
-    #define CFG_DDR_CONTROL	0xc2000000	/* unbuffered,no DYN_PWR */
-    #define CFG_DDR_MODE	0x00000062	/* DLL,normal,seq,4/2.5 */
-    #define CFG_DDR_INTERVAL	0x05200100	/* autocharge,no open page */
-#endif
+/* I2C addresses of SPD EEPROMs */
+#define SPD_EEPROM_ADDRESS	0x51	/* CTLR 0 DIMM 0 */
 
+/* These are used when DDR doesn't use SPD. */
+#define CFG_SDRAM_SIZE	128		/* DDR is 128MB */
+#define CFG_DDR_CS0_BNDS	0x00000007	/* 0-128MB */
+#define CFG_DDR_CS0_CONFIG	0x80000002
+#define CFG_DDR_TIMING_1	0x37344321
+#define CFG_DDR_TIMING_2	0x00000800	/* P9-45,may need tuning */
+#define CFG_DDR_CONTROL		0xc2000000	/* unbuffered,no DYN_PWR */
+#define CFG_DDR_MODE		0x00000062	/* DLL,normal,seq,4/2.5 */
+#define CFG_DDR_INTERVAL	0x05200100	/* autocharge,no open page */
 
 /*
  * SDRAM on the Local Bus