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.skrabec@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