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Reserve the top 16 flag bits for architecture-specific use

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Add a convention that the generic global_data only occupy the bottom 16 bits
of the flags word, so that there is less chance of a conflict. At present the
x86 flags conflict.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2015-07-31 09:31:27 -06:00
parent b6c9a20556
commit b0b403d954
1 changed files with 1 additions and 1 deletions
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include/asm-generic/global_data.h
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@ -104,7 +104,7 @@ typedef struct global_data {
#endif #endif
/* /*
* Global Data Flags * Global Data Flags - the top 16 bits are reserved for arch-specific flags
*/ */
#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */