ARM: dts: imx: Enable PCIe and NVMe on Data Modul i.MX8M Mini eDM SBC

Enable PCIe/NVMe support on Data Modul i.MX8M Mini eDM SBC. 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>

diff --git a/arch/arm/dts/imx8mm-data-modul-edm-sbc-u-boot.dtsi b/arch/arm/dts/imx8mm-data-modul-edm-sbc-u-boot.dtsi
index f5e98bf74871b9b35ba9c3f661dad4d7a1abeccf..3a4f7d01b9e9917ac57a96fa51b2ccbe36afd126 100644 (file)
--- a/arch/arm/dts/imx8mm-data-modul-edm-sbc-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-data-modul-edm-sbc-u-boot.dtsi
@@ -16,6 +16,12 @@
                dmo,ram-coding-gpios = <&gpio2 8 0>, <&gpio2 1 0>, <&gpio2 0 0>;
        };
 
+       clk_pcie100: clk-pcie100 {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <100000000>;
+       };
+
        wdt-reboot {
                compatible = "wdt-reboot";
                wdt = <&wdog1>;
@@ -35,6 +41,15 @@
        bootph-pre-ram;
 };
 
+&pcie_phy {
+       clocks = <&clk_pcie100>;
+};
+
+&pcie0 {
+       clocks = <&clk IMX8MM_CLK_PCIE1_ROOT>, <&clk IMX8MM_CLK_PCIE1_AUX>,
+                <&clk_pcie100>;
+};
+
 &pinctrl_hog_sbc {
        bootph-pre-ram;
 };

diff --git a/configs/imx8mm_data_modul_edm_sbc_defconfig b/configs/imx8mm_data_modul_edm_sbc_defconfig
index 518243e6513a3f6df9255b7794825fbb75af8c18..66cb1331ded06b5a9673e0625aa6e4986c70db4d 100644 (file)
--- a/configs/imx8mm_data_modul_edm_sbc_defconfig
+++ b/configs/imx8mm_data_modul_edm_sbc_defconfig
@@ -5,12 +5,18 @@ CONFIG_ARCH_IMX8M=y
 CONFIG_TARGET_IMX8MM_DATA_MODUL_EDM_SBC=y
 CONFIG_CI_UDC=y
 CONFIG_CLK_IMX8MM=y
+CONFIG_CMD_PCI=y
 CONFIG_DEFAULT_DEVICE_TREE="imx8mm-data-modul-edm-sbc"
 CONFIG_DEFAULT_FDT_FILE="imx8mm-data-modul-edm-sbc.dtb"
 CONFIG_DM_PMIC_BD71837=y
 CONFIG_DM_REGULATOR_BD71837=y
 CONFIG_IMX_CONFIG="board/data_modul/imx8mm_edm_sbc/imximage.cfg"
+CONFIG_NVME_PCI=y
+CONFIG_PCI=y
+CONFIG_PCIE_DW_IMX=y
+CONFIG_PHY=y
 CONFIG_PHYLIB=y
+CONFIG_PHY_IMX8M_PCIE=y
 CONFIG_PREBOOT="run dmo_preboot"
 CONFIG_SDP_LOADADDR=0x60000000
 CONFIG_SPL_BSS_MAX_SIZE=0x2000