mpc85xx boards: initdram() cleanup/bugfix

Correct initdram to use phys_size_t to represent the size of
dram; instead of changing this all over the place, and correcting
all the other random errors I've noticed, create a
common initdram that is used by all non-corenet 85xx parts.  Most
of the initdram() functions were identical, with 2 common differences:

1) DDR tlbs for the fixed_sdram case were set up in initdram() on
some boards, and were part of the tlb_table on others.  I have
changed them all over to the initdram() method - we shouldn't
be accessing dram before this point so they don't need to be
done sooner, and this seems cleaner.

2) Parts that require the DDR11 erratum workaround had different
implementations - I have adopted the version from the Freescale
errata document.  It also looks like some of the versions were
buggy, and, depending on timing, could have resulted in the
DDR controller being disabled.  This seems bad.

The xpedite boards had a common/fsl_8xxx_ddr.c; with this
change only the 517 board uses this so I have moved the ddr code
into that board's directory in xpedite517x.c

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 13 insertions, 48 deletions

diff --git a/board/xes/common/Makefile b/board/xes/common/Makefile
index 7604f626bb..39d105fcdd 100644
--- a/board/xes/common/Makefile
+++ b/board/xes/common/Makefile
@@ -33,8 +33,6 @@ COBJS-$(CONFIG_FSL_PCI_INIT)	+= fsl_8xxx_pci.o
 COBJS-$(CONFIG_MPC8572)		+= fsl_8xxx_clk.o
 COBJS-$(CONFIG_MPC86xx)		+= fsl_8xxx_clk.o
 COBJS-$(CONFIG_P2020)		+= fsl_8xxx_clk.o
-COBJS-$(CONFIG_FSL_DDR2)	+= fsl_8xxx_ddr.o
-COBJS-$(CONFIG_FSL_DDR3)	+= fsl_8xxx_ddr.o
 COBJS-$(CONFIG_MPC85xx)		+= fsl_8xxx_misc.o board.o
 COBJS-$(CONFIG_MPC86xx)		+= fsl_8xxx_misc.o board.o
 COBJS-$(CONFIG_NAND_ACTL)	+= actl_nand.o
diff --git a/board/xes/common/fsl_8xxx_ddr.c b/board/xes/common/fsl_8xxx_ddr.c
deleted file mode 100644
index 81ee70d5a1..0000000000
--- a/board/xes/common/fsl_8xxx_ddr.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright 2008 Extreme Engineering Solutions, Inc.
- *
- * 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 <asm/fsl_ddr_sdram.h>
-#include <asm/mmu.h>
-
-#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
-extern void ddr_enable_ecc(unsigned int dram_size);
-#endif
-
-phys_size_t initdram(int board_type)
-{
-	phys_size_t dram_size = fsl_ddr_sdram();
-
-#ifdef CONFIG_MPC85xx
-	dram_size = setup_ddr_tlbs(dram_size / 0x100000);
-	dram_size *= 0x100000;
-#endif
-
-#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
-	/* Initialize and enable DDR ECC */
-	ddr_enable_ecc(dram_size);
-#endif
-
-	return dram_size;
-}
diff --git a/board/xes/xpedite517x/xpedite517x.c b/board/xes/xpedite517x/xpedite517x.c
index 0f7fa6c43a..572a908004 100644
--- a/board/xes/xpedite517x/xpedite517x.c
+++ b/board/xes/xpedite517x/xpedite517x.c
@@ -22,6 +22,7 @@
 
 #include <common.h>
 #include <asm/processor.h>
+#include <asm/fsl_ddr_sdram.h>
 #include <asm/mmu.h>
 #include <asm/io.h>
 #include <fdt_support.h>
@@ -71,6 +72,18 @@ int board_early_init_r(void)
 	return 0;
 }
 
+phys_size_t initdram(int board_type)
+{
+	phys_size_t dram_size = fsl_ddr_sdram();
+
+#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
+	/* Initialize and enable DDR ECC */
+	ddr_enable_ecc(dram_size);
+#endif
+
+	return dram_size;
+}
+
 #if defined(CONFIG_OF_BOARD_SETUP)
 void ft_board_setup(void *blob, bd_t *bd)
 {