diff options
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/ls102xa/ls102xa_psci.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv7/ls102xa/ls102xa_psci.c b/arch/arm/cpu/armv7/ls102xa/ls102xa_psci.c index 00b6ad4..86693ed 100644 --- a/arch/arm/cpu/armv7/ls102xa/ls102xa_psci.c +++ b/arch/arm/cpu/armv7/ls102xa/ls102xa_psci.c @@ -68,9 +68,10 @@ static void __secure ls1_deepsleep_irq_cfg(void) ippdexpcr0 = in_be32(&rcpm->ippdexpcr0); /* - * Workaround: There is bug of register ippdexpcr1, when read it always - * returns zero, so its value is saved to a scrachpad register to be - * read, that is why we don't read it from register ippdexpcr1 itself. + * Workaround of errata A-008646 + * Errata states that read to register ippdexpcr1 always returns + * zero irrespective of what value is written into it. So its value + * is first saved to a spare register and then read from it */ ippdexpcr1 = in_be32(&scfg->sparecr[7]); out_be32(&rcpm->ippdexpcr1, ippdexpcr1); |