linux/arch/mips/boot
Paul Cercueil 944520f85d MIPS: DTS: CI20: Raise VDDCORE voltage to 1.125 volts
Commit 08384e80a7 ("MIPS: DTS: CI20: Fix ACT8600 regulator node
names") caused the VDDCORE power supply (regulated by the ACT8600's
DCDC1 output) to drop from a voltage of 1.2V configured by the
bootloader, to the 1.1V set in the Device Tree.

According to the documentation, the VDDCORE supply should be between
0.99V and 1.21V; both values are therefore within the supported range.

However, VDDCORE being 1.1V results in the CI20 being very unstable,
with corrupted memory, failures to boot, or reboots at random. The
reason might be succint drops of the voltage below the minimum required.

Raising the minimum voltage to 1.125 volts seems to be enough to address
this issue, while still keeping a relatively low core voltage which
helps for power consumption and thermals.

Fixes: 08384e80a7 ("MIPS: DTS: CI20: Fix ACT8600 regulator node names")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2023-06-23 15:00:18 +02:00
..
compressed mips: boot/compressed: use __NO_FORTIFY 2022-11-11 15:43:26 +01:00
dts MIPS: DTS: CI20: Raise VDDCORE voltage to 1.125 volts 2023-06-23 15:00:18 +02:00
tools ELF: fix all "Elf" typos 2023-04-08 13:45:37 -07:00
.gitignore mips: boot: clean up self-extracting targets scenarios 2020-11-12 23:46:45 +01:00
ecoff.h MIPS: Make elf2ecoff work on 64bit host machines 2018-06-24 09:25:24 -07:00
elf2ecoff.c MIPS: Make elf2ecoff work on 64bit host machines 2018-06-24 09:25:24 -07:00
Makefile kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00