[U-Boot] [PATCH v2 04/27] spl: Add a parameter to jump_to_image_linux()

[Simon Glass <sjg@chromium.org>]

Instead of using the global spl_image variable, pass the required struct in
as an argument.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
---

Changes in v2: None

 arch/arm/lib/spl.c        |  4 ++--
 arch/microblaze/cpu/spl.c |  4 ++--
 arch/powerpc/lib/spl.c    |  4 ++--
 common/spl/spl.c          |  3 ++-
 include/spl.h             | 12 +++++++++++-
 5 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/arch/arm/lib/spl.c b/arch/arm/lib/spl.c
index 3587ad6..e606d47 100644
--- a/arch/arm/lib/spl.c
+++ b/arch/arm/lib/spl.c
@@ -47,7 +47,7 @@ void __weak board_init_f(ulong dummy)
  * arg: Pointer to paramter image in RAM
  */
 #ifdef CONFIG_SPL_OS_BOOT
-void __noreturn jump_to_image_linux(void *arg)
+void __noreturn jump_to_image_linux(struct spl_image_info *spl_image, void *arg)
 {
 	unsigned long machid = 0xffffffff;
 #ifdef CONFIG_MACH_TYPE
@@ -58,7 +58,7 @@ void __noreturn jump_to_image_linux(void *arg)
 	typedef void (*image_entry_arg_t)(int, int, void *)
 		__attribute__ ((noreturn));
 	image_entry_arg_t image_entry =
-		(image_entry_arg_t)(uintptr_t) spl_image.entry_point;
+		(image_entry_arg_t)(uintptr_t) spl_image->entry_point;
 	cleanup_before_linux();
 	image_entry(0, machid, arg);
 }
diff --git a/arch/microblaze/cpu/spl.c b/arch/microblaze/cpu/spl.c
index f4bb091..8e6d926 100644
--- a/arch/microblaze/cpu/spl.c
+++ b/arch/microblaze/cpu/spl.c
@@ -29,13 +29,13 @@ void spl_board_init(void)
 }
 
 #ifdef CONFIG_SPL_OS_BOOT
-void __noreturn jump_to_image_linux(void *arg)
+void __noreturn jump_to_image_linux(struct spl_image_info *spl_image, void *arg)
 {
 	debug("Entering kernel arg pointer: 0x%p\n", arg);
 	typedef void (*image_entry_arg_t)(char *, ulong, ulong)
 		__attribute__ ((noreturn));
 	image_entry_arg_t image_entry =
-		(image_entry_arg_t)spl_image.entry_point;
+		(image_entry_arg_t)spl_image->entry_point;
 
 	image_entry(NULL, 0, (ulong)arg);
 }
diff --git a/arch/powerpc/lib/spl.c b/arch/powerpc/lib/spl.c
index 0e486cc..080b978 100644
--- a/arch/powerpc/lib/spl.c
+++ b/arch/powerpc/lib/spl.c
@@ -17,14 +17,14 @@ DECLARE_GLOBAL_DATA_PTR;
  * arg: Pointer to paramter image in RAM
  */
 #ifdef CONFIG_SPL_OS_BOOT
-void __noreturn jump_to_image_linux(void *arg)
+void __noreturn jump_to_image_linux(struct spl_image_info *spl_image, 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_t)spl_image->entry_point;
 
 	image_entry(arg, 0, 0, EPAPR_MAGIC, CONFIG_SYS_BOOTMAPSZ, 0, 0);
 }
diff --git a/common/spl/spl.c b/common/spl/spl.c
index 6195c06..cb96ef3 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -466,7 +466,8 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
 	case IH_OS_LINUX:
 		debug("Jumping to Linux\n");
 		spl_board_prepare_for_linux();
-		jump_to_image_linux((void *)CONFIG_SYS_SPL_ARGS_ADDR);
+		jump_to_image_linux(&spl_image,
+				    (void *)CONFIG_SYS_SPL_ARGS_ADDR);
 #endif
 	default:
 		debug("Unsupported OS image.. Jumping nevertheless..\n");
diff --git a/include/spl.h b/include/spl.h
index 8147e6d..aebafa3 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -99,7 +99,17 @@ int spl_parse_image_header(struct spl_image_info *spl_image,
 void spl_board_prepare_for_linux(void);
 void spl_board_prepare_for_boot(void);
 int spl_board_ubi_load_image(u32 boot_device);
-void __noreturn jump_to_image_linux(void *arg);
+
+/**
+ * jump_to_image_linux() - Jump to a Linux kernel from SPL
+ *
+ * This jumps into a Linux kernel using the information in @spl_image.
+ *
+ * @spl_image: Image description to set up
+ * @arg: Argument to pass to Linux (typically a device tree pointer)
+ */
+void __noreturn jump_to_image_linux(struct spl_image_info *spl_image,
+				    void *arg);
 int spl_start_uboot(void);
 void spl_display_print(void);
 
-- 
2.8.0.rc3.226.g39d4020