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lib: utils/andes: arm the SMU sleep command last

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Once the sleep command is written, the next WFI puts the core to sleep,
so everything that can fail has to run before it.

Also, use writel() so the command store cannot still be in flight at the
WFI.

Signed-off-by: Ben Zong-You Xie <ben717@andestech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260728081041.2724668-8-ben717@andestech.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Ben Zong-You Xie
2026-09-01 10:46:23 +05:30
committed by Anup Patel
parent 0fb4799307
commit 06af8bd61b
4 changed files with 35 additions and 9 deletions
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platform/generic/andes/ae350.c
+8
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@@ -38,6 +38,14 @@ void ae350_non_ret_save(struct sbi_scratch *scratch)
andes_hdata->saved = true;
}
void ae350_non_ret_discard(struct sbi_scratch *scratch)
{
struct andes_hart_data *andes_hdata = sbi_scratch_offset_ptr(scratch,
andes_hart_data_offset);
andes_hdata->saved = false;
}
void ae350_non_ret_restore(struct sbi_scratch *scratch)
{
struct andes_hart_data *andes_hdata = sbi_scratch_offset_ptr(scratch,