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x86: acpi: Add one API to find OS wakeup vector

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This adds one API acpi_find_wakeup_vector() to locate OS wakeup
vector from the ACPI FACS table, to be used in the S3 boot path.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Bin Meng 2017-04-21 07:24:36 -07:00
parent 2b2d666f9c
commit e76bf38f18
3 changed files with 83 additions and 0 deletions
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1
arch/x86/include/asm/tables.h
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@ -15,6 +15,7 @@
* PIRQ routing table, Multi-Processor table and ACPI table.
*/
#define ROM_TABLE_ADDR 0xf0000
#define ROM_TABLE_END 0xfffff
#define ROM_TABLE_ALIGN 1024