From 0b3b1766b78331dfd109f2c5f816dcdd65055eb6 Mon Sep 17 00:00:00 2001
From: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Date: Mon, 7 Feb 2011 15:09:51 +0530
Subject: [PATCH] fsl_ddr: Adds 16 bit DDR Data width option
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Cc: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
arch/powerpc/cpu/mpc8xxx/ddr/util.c | 4 +++-
arch/powerpc/include/asm/fsl_ddr_sdram.h | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/util.c b/arch/powerpc/cpu/mpc8xxx/ddr/util.c
index 815c5e3a9e..b9a5a690cb 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/util.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/util.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2008 Freescale Semiconductor, Inc.
+ * Copyright 2008-2011 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
@@ -139,6 +139,8 @@ void board_add_ram_info(int use_default)
if (sdram_cfg & SDRAM_CFG_32_BE)
puts(", 32-bit");
+ else if (sdram_cfg & SDRAM_CFG_16_BE)
+ puts(", 16-bit");
else
puts(", 64-bit");
diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h
index b5b1efe669..99dddb4f00 100644
--- a/arch/powerpc/include/asm/fsl_ddr_sdram.h
+++ b/arch/powerpc/include/asm/fsl_ddr_sdram.h
@@ -84,6 +84,7 @@ typedef ddr3_spd_eeprom_t generic_spd_eeprom_t;
#define SDRAM_CFG_SDRAM_TYPE_SHIFT 24
#define SDRAM_CFG_DYN_PWR 0x00200000
#define SDRAM_CFG_32_BE 0x00080000
+#define SDRAM_CFG_16_BE 0x00100000
#define SDRAM_CFG_8_BE 0x00040000
#define SDRAM_CFG_NCAP 0x00020000
#define SDRAM_CFG_2T_EN 0x00008000
--
2.39.5