This patch enables the SPL framework to be used on powerpc platforms
and not only ARM.
Signed-off-by: Stefan Roese <s...@denx.de>
---
Changes in v2:
- Add option to skip copying of the mkimage header
- Rebased on Tom's SPL framework patches v4
arch/powerpc/lib/Makefile | 1 +
arch/powerpc/lib/spl.c | 42 ++++++++++++++++++++++++++++++++++++++++++
common/spl/spl.c | 16 ++++++++++++++--
3 files changed, 57 insertions(+), 2 deletions(-)
create mode 100644 arch/powerpc/lib/spl.c
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index cdd62a2..9c86c96 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -51,6 +51,7 @@ COBJS-y += cache.o
COBJS-y += extable.o
COBJS-y += interrupts.o
COBJS-$(CONFIG_CMD_KGDB) += kgdb.o
+COBJS-$(CONFIG_SPL_FRAMEWORK) += spl.o
COBJS-y += time.o
# Workaround for local bus unaligned access problems
diff --git a/arch/powerpc/lib/spl.c b/arch/powerpc/lib/spl.c
new file mode 100644
index 0000000..502c93b
--- /dev/null
+++ b/arch/powerpc/lib/spl.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2012 Stefan Roese <s...@denx.de>
+ *
+ * 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.
+ */
+#include <common.h>
+#include <config.h>
+#include <spl.h>
+#include <image.h>
+#include <linux/compiler.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * This function jumps to an image with argument. Normally an FDT or ATAGS
+ * image.
+ * arg: Pointer to paramter image in RAM
+ */
+#ifdef CONFIG_SPL_OS_BOOT
+void __noreturn jump_to_image_linux(void *arg)
+{
+ debug("Entering kernel arg pointer: 0x%p\n", arg);
+ typedef void (*image_entry_arg_t)(void *, ulong r4, ulong r5, ulong r6,
+ ulong r7, ulong r8, ulong r9)
+ __attribute__ ((noreturn));
+ image_entry_arg_t image_entry =
+ (image_entry_arg_t)spl_image.entry_point;
+
+ image_entry(arg, 0, 0, EPAPR_MAGIC, CONFIG_SYS_BOOTMAPSZ, 0, 0);
+}
+#endif /* CONFIG_SPL_OS_BOOT */
diff --git a/common/spl/spl.c b/common/spl/spl.c
index 61936ee..3eb269e 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -25,7 +25,6 @@
#include <common.h>
#include <spl.h>
#include <asm/u-boot.h>
-#include <asm/utils.h>
#include <nand.h>
#include <fat.h>
#include <version.h>
@@ -36,6 +35,9 @@
DECLARE_GLOBAL_DATA_PTR;
+#ifndef CONFIG_SYS_UBOOT_START
+#define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
+#endif
#ifndef CONFIG_SYS_MONITOR_LEN
#define CONFIG_SYS_MONITOR_LEN (200 * 1024)
#endif
@@ -71,6 +73,16 @@ __weak int spl_start_uboot(void)
}
#endif
+/*
+ * Weak default function for board specific cleanup/preparation before
+ * Linux boot. Some boards/platforms might now need it, so just provide
+ * an empty stub here.
+ */
+__weak void spl_board_prepare_for_linux(void)
+{
+ /* Nothing to do! */
+}
+
void spl_parse_image_header(const struct image_header *header)
{
u32 header_size = sizeof(struct image_header);
@@ -104,7 +116,7 @@ void spl_parse_image_header(const struct image_header
*header)
header->ih_magic);
/* Let's assume U-Boot will not be more than 200 KB */
spl_image.size = CONFIG_SYS_MONITOR_LEN;
- spl_image.entry_point = CONFIG_SYS_TEXT_BASE;
+ spl_image.entry_point = CONFIG_SYS_UBOOT_START;
spl_image.load_addr = CONFIG_SYS_TEXT_BASE;
spl_image.os = IH_OS_U_BOOT;
spl_image.name = "U-Boot";
--
1.7.12
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