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authorSimon Glass <sjg@chromium.org>2015-03-03 08:02:58 -0700
committerTom Rini <trini@konsulko.com>2015-03-04 14:55:04 -0500
commitfc8fdc76e72e4ea57a7257e7054ca1a3b0966d34 (patch)
tree5cd4181b750219493709bfd781c728ea6ae4b8e4
parent24a6bc010e7ce00a91c795562058044e9f9d5dc0 (diff)
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arm: spl: Avoid setting up a duplicate global data structure
This is already set up in crt0.S. We don't need a new structure and don't really want one in the 'data' section of the image, since it will be empty and crt0.S's changes will be ignored. As an interim measure, remove it only if CONFIG_DM is not defined. This allows us to press ahead with driver model in SPL and allow the stragglers to catch up. Signed-off-by: Simon Glass <sjg@chromium.org>
-rw-r--r--arch/arm/include/asm/spl.h2
-rw-r--r--arch/arm/lib/spl.c4
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/include/asm/spl.h b/arch/arm/include/asm/spl.h
index 17b6f54..6db405d 100644
--- a/arch/arm/include/asm/spl.h
+++ b/arch/arm/include/asm/spl.h
@@ -37,6 +37,8 @@ void spl_board_load_image(void);
/* Linker symbols. */
extern char __bss_start[], __bss_end[];
+#ifndef CONFIG_DM
extern gd_t gdata;
+#endif
#endif
diff --git a/arch/arm/lib/spl.c b/arch/arm/lib/spl.c
index c41850a..bd8c7d2 100644
--- a/arch/arm/lib/spl.c
+++ b/arch/arm/lib/spl.c
@@ -13,6 +13,7 @@
#include <image.h>
#include <linux/compiler.h>
+#ifndef CONFIG_DM
/* Pointer to as well as the global data structure for SPL */
DECLARE_GLOBAL_DATA_PTR;
@@ -21,6 +22,7 @@ DECLARE_GLOBAL_DATA_PTR;
* pafches that rely on it. The global_data area is set up in crt0.S.
*/
gd_t gdata __attribute__ ((section(".data")));
+#endif
/*
* In the context of SPL, board_init_f must ensure that any clocks/etc for
@@ -33,8 +35,10 @@ void __weak board_init_f(ulong dummy)
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
+#ifndef CONFIG_DM
/* TODO: Remove settings of the global data pointer here */
gd = &gdata;
+#endif
board_init_r(NULL, 0);
}