пт, 3 лют. 2023 р. о 04:16 Simon Glass <[email protected]> пише: > > Hi Svyatoslav, > > On Thu, 2 Feb 2023 at 11:43, Svyatoslav Ryhel <[email protected]> wrote: > > > > This implementation allows pwr i2c writing on early > > stages when DM was not yet setup. > > s/was/is/ ?
Greetings! is > > > > > Such writing is needed to configure main voltages of PMIC. > > Is this in SPL? Yes, this is an early SPL stage, when i2c DM is not yet set, and u-boot to be able to boot itself has to set PMIC core and cpu voltages. This is the case for T30 and T124, though it may not be exclusive Best regards, Svyatoslav R. > > > > > Tested-by: Andreas Westman Dorcsak <[email protected]> # ASUS TF T30 > > Tested-by: Robert Eckelmann <[email protected]> # ASUS TF101 T20 > > Tested-by: Svyatoslav Ryhel <[email protected]> # LG P895 T30 > > Signed-off-by: Svyatoslav Ryhel <[email protected]> > > --- > > arch/arm/include/asm/arch-tegra/tegra_i2c.h | 17 ++++++++++ > > arch/arm/mach-tegra/cpu.h | 1 - > > arch/arm/mach-tegra/tegra124/cpu.c | 4 +++ > > arch/arm/mach-tegra/tegra30/cpu.c | 37 +++++++-------------- > > 4 files changed, 33 insertions(+), 26 deletions(-) > > Regards, > Simon
