Patchwork [U-Boot,03/10,V5] SMDK5250: Add smdk5250-uboot-spl.lds

login
register
mail settings
Submitter Rajeshwari Birje
Date July 2, 2012, 11:36 a.m.
Message ID <1341229005-19008-4-git-send-email-rajeshwari.s@samsung.com>
Download mbox | patch
Permalink /patch/168570/
State Changes Requested
Delegated to: Minkyu Kang
Headers show

Comments

Rajeshwari Birje - July 2, 2012, 11:36 a.m.
Default spl/u-boot-spl.lds created by spl/Makefile resolves
the spl text load addr to 0x0. As 0x0 belongs to iROM addr so
Global variables can not be used.

Adding specific smdk5250-uboot-spl.lds makes possible to use Global Variables
in spl.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
---
Changes in V2:
        - None.
Changes in V3:
        - None
Changes in V4:
	- None.
Changes in V5:
	- None
 board/samsung/smdk5250/smdk5250-uboot-spl.lds |   66 +++++++++++++++++++++++++
 include/configs/smdk5250.h                    |    5 ++
 2 files changed, 71 insertions(+), 0 deletions(-)
 create mode 100644 board/samsung/smdk5250/smdk5250-uboot-spl.lds

Patch

diff --git a/board/samsung/smdk5250/smdk5250-uboot-spl.lds b/board/samsung/smdk5250/smdk5250-uboot-spl.lds
new file mode 100644
index 0000000..d78dd77
--- /dev/null
+++ b/board/samsung/smdk5250/smdk5250-uboot-spl.lds
@@ -0,0 +1,66 @@ 
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * Based on arch/arm/cpu/armv7/omap-common/u-boot-spl.lds
+ *
+ * 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
+ */
+
+MEMORY { .sram : ORIGIN = CONFIG_SPL_TEXT_BASE, \
+		LENGTH = CONFIG_SPL_MAX_SIZE }
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+
+SECTIONS
+{
+	.text :
+	{
+		__start = .;
+		arch/arm/cpu/armv7/start.o (.text)
+		*(.text*)
+	} >.sram
+	. = ALIGN(4);
+
+	.rodata : { *(SORT_BY_ALIGNMENT(.rodata*)) } >.sram
+	. = ALIGN(4);
+
+	.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
+	. = ALIGN(4);
+
+	/* Align .machine_param on 256 byte boundary for easier searching */
+	.machine_param ALIGN(0x100) : { *(.machine_param) } >.sram
+	. = ALIGN(4);
+
+	__image_copy_end = .;
+	_end = .;
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start = .;
+		*(.bss*)
+		. = ALIGN(4);
+		__bss_end__ = .;
+	} >.sram
+}
diff --git a/include/configs/smdk5250.h b/include/configs/smdk5250.h
index 9659f9e..405abd5 100644
--- a/include/configs/smdk5250.h
+++ b/include/configs/smdk5250.h
@@ -105,6 +105,11 @@ 
 #define CONFIG_SPL
 #define COPY_BL2_FNPTR_ADDR	0x02020030
 
+/* specific .lds file */
+#define CONFIG_SPL_LDSCRIPT	"board/samsung/smdk5250/smdk5250-uboot-spl.lds"
+#define CONFIG_SPL_TEXT_BASE	0x02023400
+#define CONFIG_SPL_MAX_SIZE	(14 * 1024)
+
 #define CONFIG_BOOTCOMMAND	"mmc read 40007000 451 2000; bootm 40007000"
 
 /* Miscellaneous configurable options */