[U-Boot] [PATCH 1/2] powerpc/8xxx: Move fsl_is_spd() into generic 8xxx ddr code

[Kumar Gala]

Move the parsing of hwconfig to determine if to use spd into common code
so we can share it across all boards instead of duplicating it
everywhere.

Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
---
 arch/powerpc/cpu/mpc8xxx/ddr/options.c   |   22 +++++++++++++++++++++-
 arch/powerpc/include/asm/fsl_ddr_sdram.h |    3 ++-
 board/freescale/corenet_ds/ddr.c         |   18 ++----------------
 3 files changed, 25 insertions(+), 18 deletions(-)

diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/options.c b/arch/powerpc/cpu/mpc8xxx/ddr/options.c
index 774c0e4..c641e85 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/options.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/options.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008, 2010 Freescale Semiconductor, Inc.
+ * Copyright 2008, 2010-2011 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 as published by the Free
@@ -387,3 +387,23 @@ void check_interleaving_options(fsl_ddr_info_t *pinfo)
 				"Memory controller interleaving disabled.\n");
 	}
 }
+
+int fsl_use_spd(void)
+{
+	int use_spd = 0;
+
+#ifdef CONFIG_DDR_SPD
+	/* if hwconfig is not enabled, or "sdram" is not defined, use spd */
+	if (hwconfig_sub("fsl_ddr", "sdram")) {
+		if (hwconfig_subarg_cmp("fsl_ddr", "sdram", "spd"))
+			use_spd = 1;
+		else if (hwconfig_subarg_cmp("fsl_ddr", "sdram", "fixed"))
+			use_spd = 0;
+		else
+			use_spd = 1;
+	} else
+		use_spd = 1;
+#endif
+
+	return use_spd;
+}
diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h
index 17d4b31..c6258db 100644
--- a/arch/powerpc/include/asm/fsl_ddr_sdram.h
+++ b/arch/powerpc/include/asm/fsl_ddr_sdram.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008-2010 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
@@ -213,6 +213,7 @@ typedef struct memctl_options_s {
 } memctl_options_t;
 
 extern phys_size_t fsl_ddr_sdram(void);
+extern int fsl_use_spd(void);
 
 typedef struct fixed_ddr_parm{
 	int min_freq;
diff --git a/board/freescale/corenet_ds/ddr.c b/board/freescale/corenet_ds/ddr.c
index 2ee0188..85b6c78 100644
--- a/board/freescale/corenet_ds/ddr.c
+++ b/board/freescale/corenet_ds/ddr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ * Copyright 2009-2011 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
@@ -288,24 +288,10 @@ void fsl_ddr_board_options(memctl_options_t *popts,
 phys_size_t initdram(int board_type)
 {
 	phys_size_t dram_size;
-	int use_spd = 0;
 
 	puts("Initializing....");
 
-#ifdef CONFIG_DDR_SPD
-	/* if hwconfig is not enabled, or "sdram" is not defined, use spd */
-	if (hwconfig_sub("fsl_ddr", "sdram")) {
-		if (hwconfig_subarg_cmp("fsl_ddr", "sdram", "spd"))
-			use_spd = 1;
-		else if (hwconfig_subarg_cmp("fsl_ddr", "sdram", "fixed"))
-			use_spd = 0;
-		else
-			use_spd = 1;
-	} else
-		use_spd = 1;
-#endif
-
-	if (use_spd) {
+	if (fsl_use_spd()) {
 		puts("using SPD\n");
 		dram_size = fsl_ddr_sdram();
 	} else {
-- 
1.7.2.3