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authorSimon Glass <sjg@chromium.org>2017-01-16 07:03:44 -0700
committerBin Meng <bmeng.cn@gmail.com>2017-02-06 11:38:46 +0800
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treef249ea504d30810dd92b8316ee76f77477bffe56 /Makefile
parenta66ad67ff26a2c4940aa7b6ddba40cf202edf108 (diff)
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x86: Kconfig: Add location options for 16/32-bit init
At present all 16/32-bit init is controlled by CONFIG_X86_RESET_VECTOR. If this is enabled, then U-Boot is the 'first' boot loader and handles execution from the reset vector through to U-Boot's command prompt. If it is not enabled then U-Boot starts at the 32-bit entry and skips most of its init, assuming that the previous boot loader has done this already. With the move to suport 64-bit operation, we have more cases to consider. The 16-bit and 32-bit init may be in SPL rather than in U-Boot proper. Add Kconfig options which control the location of the 16-bit and the 32-bit init. These are not intended to be user-setting except for experimentation. Their values should be determined by whether 64-bit U-Boot is used. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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