From 8b625114e8bc5a6b436181167a6e7fcd3303dd2c Mon Sep 17 00:00:00 2001
From: Jon Loeliger <jdl@freescale.com>
Date: Tue, 18 Mar 2008 11:12:44 -0500
Subject: FSL DDR: Convert MPC8560ADS to new DDR code.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
 board/freescale/mpc8560ads/Makefile     | 13 +++---
 board/freescale/mpc8560ads/ddr.c        | 70 +++++++++++++++++++++++++++++++++
 board/freescale/mpc8560ads/mpc8560ads.c | 11 ++++--
 3 files changed, 86 insertions(+), 8 deletions(-)
 create mode 100644 board/freescale/mpc8560ads/ddr.c

(limited to 'board')

diff --git a/board/freescale/mpc8560ads/Makefile b/board/freescale/mpc8560ads/Makefile
index 2d71cbc..67dbdeb 100644
--- a/board/freescale/mpc8560ads/Makefile
+++ b/board/freescale/mpc8560ads/Makefile
@@ -25,11 +25,14 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	:= $(BOARD).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	+= 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/mpc8560ads/ddr.c b/board/freescale/mpc8560ads/ddr.c
new file mode 100644
index 0000000..45372f4
--- /dev/null
+++ b/board/freescale/mpc8560ads/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/mpc8560ads/mpc8560ads.c b/board/freescale/mpc8560ads/mpc8560ads.c
index 2c14a88..851fc57 100644
--- a/board/freescale/mpc8560ads/mpc8560ads.c
+++ b/board/freescale/mpc8560ads/mpc8560ads.c
@@ -28,7 +28,9 @@
 #include <common.h>
 #include <pci.h>
 #include <asm/processor.h>
+#include <asm/mmu.h>
 #include <asm/immap_85xx.h>
+#include <asm/fsl_ddr_sdram.h>
 #include <ioports.h>
 #include <spd_sdram.h>
 #include <miiphy.h>
@@ -285,10 +287,13 @@ 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)
-- 
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