[U-Boot] [PATCH 3/5] arm: mvebu: Move CONFIG_SYS_TEXT_BASE to an address < 16 MiB

[Stefan Roese]

This patch moves CONFIG_SYS_TEXT_BASE to 0x00800000 for all Armada
XP / 38x boards in mainline U-Boot. This is done in preparation for
the ECC SDRAM scrubbing that needs to be done in the main U-Boot.
The SPL (previously bin_hdr) has already scrubbed the area:
  0x0000.0000 - 0x0100.0000

In this area this main U-Boot needs to get loaded. The main U-Boot
then can scrub the remaining SDRAM area while running from this
location.

Signed-off-by: Stefan Roese <sr at denx.de>
Cc: Luka Perkov <luka.perkov at sartura.hr>
---
 include/configs/db-88f6820-gp.h | 7 ++++++-
 include/configs/db-mv784mp-gp.h | 7 ++++++-
 include/configs/maxbcm.h        | 7 ++++++-
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/include/configs/db-88f6820-gp.h b/include/configs/db-88f6820-gp.h
index 739c2bf..7c32edb 100644
--- a/include/configs/db-88f6820-gp.h
+++ b/include/configs/db-88f6820-gp.h
@@ -20,7 +20,12 @@
 #define CONFIG_SYS_GENERIC_BOARD
 #define CONFIG_DISPLAY_BOARDINFO_LATE
 
-#define	CONFIG_SYS_TEXT_BASE	0x04000000
+/*
+ * TEXT_BASE needs to be below 16MiB, since this area is scrubbed
+ * for DDR ECC byte filling in the SPL before loading the main
+ * U-Boot into it.
+ */
+#define	CONFIG_SYS_TEXT_BASE	0x00800000
 #define CONFIG_SYS_TCLK		250000000	/* 250MHz */
 
 /*
diff --git a/include/configs/db-mv784mp-gp.h b/include/configs/db-mv784mp-gp.h
index 9ea8cff..2b177d7 100644
--- a/include/configs/db-mv784mp-gp.h
+++ b/include/configs/db-mv784mp-gp.h
@@ -17,7 +17,12 @@
 #define CONFIG_SYS_GENERIC_BOARD
 #define CONFIG_DISPLAY_BOARDINFO_LATE
 
-#define	CONFIG_SYS_TEXT_BASE	0x04000000
+/*
+ * TEXT_BASE needs to be below 16MiB, since this area is scrubbed
+ * for DDR ECC byte filling in the SPL before loading the main
+ * U-Boot into it.
+ */
+#define	CONFIG_SYS_TEXT_BASE	0x00800000
 #define CONFIG_SYS_TCLK		250000000	/* 250MHz */
 
 /*
diff --git a/include/configs/maxbcm.h b/include/configs/maxbcm.h
index 0fb117f..3530a26 100644
--- a/include/configs/maxbcm.h
+++ b/include/configs/maxbcm.h
@@ -15,7 +15,12 @@
 #define CONFIG_SYS_GENERIC_BOARD
 #define CONFIG_DISPLAY_BOARDINFO_LATE
 
-#define	CONFIG_SYS_TEXT_BASE	0x04000000
+/*
+ * TEXT_BASE needs to be below 16MiB, since this area is scrubbed
+ * for DDR ECC byte filling in the SPL before loading the main
+ * U-Boot into it.
+ */
+#define	CONFIG_SYS_TEXT_BASE	0x00800000
 #define CONFIG_SYS_TCLK		250000000	/* 250MHz */
 
 /*
-- 
2.4.8