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authorPoonam Aggrwal <poonam.aggrwal@freescale.com>2011-02-07 15:09:51 +0530
committerKumar Gala <galak@kernel.crashing.org>2011-04-04 09:24:41 -0500
commit0b3b1766b78331dfd109f2c5f816dcdd65055eb6 (patch)
tree9751e6cd8a6c51d75376ce8326758ef39b3f4131
parent09f9ee1695136045f293dacda915d94c2891d4f0 (diff)
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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>
-rw-r--r--arch/powerpc/cpu/mpc8xxx/ddr/util.c4
-rw-r--r--arch/powerpc/include/asm/fsl_ddr_sdram.h1
2 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/util.c b/arch/powerpc/cpu/mpc8xxx/ddr/util.c
index 815c5e3..b9a5a69 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 b5b1efe..99dddb4 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