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x86: Set APs' req_seq to the reg number from device tree

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Multiple APs are brought up simultaneously and they may get the same
seq num in the uclass_resolve_seq() during device_probe(). To avoid
this, set req_seq to the reg number in the device tree in advance.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2015-08-09 23:58:39 -07:00 committed by Simon Glass
parent 57dccb55fc
commit ecfeadabb7
1 changed files with 7 additions and 0 deletions
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7
arch/x86/cpu/mp_init.c
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@ -515,5 +515,12 @@ int mp_init(struct mp_params *p)
int mp_init_cpu(struct udevice *cpu, void *unused)
{
/*
* Multiple APs are brought up simultaneously and they may get the same
* seq num in the uclass_resolve_seq() during device_probe(). To avoid
* this, set req_seq to the reg number in the device tree in advance.
*/
cpu->req_seq = fdtdec_get_int(gd->fdt_blob, cpu->of_offset, "reg", -1);
return device_probe(cpu);
}