3 Commits

Author	SHA1	Message	Date
Simon Glass	0e72ac7150	x86: Move CPU init to before spl_init() ... At present we call spl_init() before identifying the CPU. This is not a good idea - e.g. if bootstage is enabled then it will try to set up the timer which works better if the CPU is identified. Put explicit code at each entry pointer to identify the CPU. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>	2019-11-03 07:20:28 +08:00
Simon Glass	08deb6d36f	x86: Add more comments to the start-up code ... The full start-up sequence (TPL->SPL->U-Boot) can be a bit confusing since each phase has its own 'start' file. Add comments to explain this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>	2019-10-08 13:57:36 +08:00
Simon Glass	051c31b7a4	x86: Add support for starting from SPL/TPL ... When a previous phase of U-Boot has run we need to adjust the init of subsequent states to avoid messing up the CPU state. Add a new version of the start logic for SPL, when it boots from TPL (start_from tpl.c) and a new version for U-Boot when it boots from SPL. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>	2019-05-08 13:02:13 +08:00