Enable PCIe/NVMe support on DH i.MX8M Plus DHCOM PDK3. Except for the configuration options which are enabled, add slight adjustment to board u-boot.dtsi, which is necessary as there is currently no driver for the I2C PCIe clock generator. Since the generator is strapped to be always on, it is possible to supplant the generator functionality by fixed-clock.

Signed-off-by: Marek Vasut marex@denx.de --- Cc: "NXP i.MX U-Boot Team" uboot-imx@nxp.com Cc: Fabio Estevam festevam@gmail.com Cc: Simon Glass sjg@chromium.org Cc: Stefano Babic sbabic@denx.de Cc: Tom Rini trini@konsulko.com Cc: u-boot@dh-electronics.com Cc: u-boot@lists.denx.de --- arch/arm/dts/imx8mp-dhcom-pdk3-u-boot.dtsi | 12 ++++++++++++ configs/imx8mp_dhcom_pdk3_defconfig | 5 +++++ 2 files changed, 17 insertions(+)

diff --git a/arch/arm/dts/imx8mp-dhcom-pdk3-u-boot.dtsi b/arch/arm/dts/imx8mp-dhcom-pdk3-u-boot.dtsi index 040f333c52d..b0b99d51856 100644 --- a/arch/arm/dts/imx8mp-dhcom-pdk3-u-boot.dtsi +++ b/arch/arm/dts/imx8mp-dhcom-pdk3-u-boot.dtsi @@ -4,3 +4,15 @@ */

#include "imx8mp-dhcom-u-boot.dtsi" + +/ { + clk_pcie100: clk-pcie100 { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <100000000>; + }; +}; + +&pcie_phy { + clocks = <&clk_pcie100>; +}; diff --git a/configs/imx8mp_dhcom_pdk3_defconfig b/configs/imx8mp_dhcom_pdk3_defconfig index a42dc27aff8..019595edda8 100644 --- a/configs/imx8mp_dhcom_pdk3_defconfig +++ b/configs/imx8mp_dhcom_pdk3_defconfig @@ -31,6 +31,7 @@ CONFIG_ENV_OFFSET_REDUND=0xFF0000 CONFIG_IMX_BOOTAUX=y CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x48000000 CONFIG_SYS_LOAD_ADDR=0x50000000 +CONFIG_PCI=y CONFIG_DEBUG_UART=y CONFIG_ENV_VARS_UBOOT_CONFIG=y CONFIG_FIT=y @@ -104,6 +105,7 @@ CONFIG_CMD_MMC=y CONFIG_CMD_BKOPS_ENABLE=y CONFIG_CMD_MTD=y CONFIG_CMD_PART=y +CONFIG_CMD_PCI=y CONFIG_CMD_READ=y CONFIG_CMD_SPI=y CONFIG_CMD_USB=y @@ -218,7 +220,10 @@ CONFIG_DWC_ETH_QOS_IMX=y CONFIG_FEC_MXC=y CONFIG_RGMII=y CONFIG_MII=y +CONFIG_NVME_PCI=y +CONFIG_PCIE_DW_IMX=y CONFIG_PHY_IMX8MQ_USB=y +CONFIG_PHY_IMX8M_PCIE=y CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_IMX8M=y