Dne sobota, 12. junij 2021 ob 07:50:27 CEST je Jernej Škrabec napisal(a): > Dne ponedeljek, 07. junij 2021 ob 19:42:45 CEST je Jernej Skrabec napisal(a): > > OrangePi PC2 board has DRAM with ODT, so enable it. ZQ value is also > > slightly different in vendor images, so update it as well. H5 SoC is > > also connected to voltage regulator. It's default value is pretty low, > > so in order to avoid instability, enable driver for it and set it to > > appropriate voltage. > > > > Signed-off-by: Jernej Skrabec <jernej.skra...@gmail.com> > > --- > > configs/orangepi_pc2_defconfig | 6 ++++-- > > 1 file changed, 4 insertions(+), 2 deletions(-) > > > > diff --git a/configs/orangepi_pc2_defconfig b/configs/orangepi_pc2_defconfig > > index f72ffe27b26c..5e4cca793f53 100644 > > --- a/configs/orangepi_pc2_defconfig > > +++ b/configs/orangepi_pc2_defconfig > > @@ -3,13 +3,15 @@ CONFIG_ARCH_SUNXI=y > > CONFIG_SPL=y > > CONFIG_MACH_SUN50I_H5=y > > CONFIG_DRAM_CLK=672 > > -CONFIG_DRAM_ZQ=3881977 > > -# CONFIG_DRAM_ODT_EN is not set > > +CONFIG_DRAM_ZQ=4145117
I re-checked BSP DT and original ZQ value is correct. So this patch should only enable ODT, which is really enabled in BSP and DRAM ICs support it. Best regards, Jernej > > CONFIG_MACPWR="PD6" > > CONFIG_SPL_SPI_SUNXI=y > > +CONFIG_SPL_I2C_SUPPORT=y > > CONFIG_DEFAULT_DEVICE_TREE="sun50i-h5-orangepi-pc2" > > # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set > > CONFIG_SUN8I_EMAC=y > > +CONFIG_SY8106A_POWER=y > > +CONFIG_SY8106A_VOUT1_VOLT=1100 > > I'm not sure if voltage regulator adjustment needs to be enabled. By default, > it's set to 1.1 V using resistor divider. However, it can be still needed if > board is rebooted and OS set it to lower value before reboot. > > Best regards, > Jernej > > > CONFIG_USB_EHCI_HCD=y > > CONFIG_USB_OHCI_HCD=y > > CONFIG_USB_MUSB_GADGET=y > > -- > > 2.31.1 > > > > > > >
