arm64: dts: ti: iot2050: Add overlays for M.2 used by firmware

To allow firmware to pick up all DTs from here, move the overlays that
are normally applied during DT fixup to the kernel source as well. Hook
then into the build nevertheless to ensure that regular checks are
performed.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Link: https://lore.kernel.org/r/91f8b825467651ebd51a4051f153ab136eeb1849.1724830741.git.jan.kiszka@siemens.com
Signed-off-by: Nishanth Menon <nm@ti.com>

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index e20b27ddf90111935e50e2230720d606a0cccee6..8dbe7b4979c7658b5d7507f3a0b5a11fce1b6a0e 100644 (file)
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -73,10 +73,16 @@ k3-am654-gp-evm-dtbs := k3-am654-base-board.dtb \
        k3-am654-pcie-usb3.dtbo
 k3-am654-evm-dtbs := k3-am654-base-board.dtb k3-am654-icssg2.dtbo
 k3-am654-idk-dtbs := k3-am654-evm.dtb k3-am654-idk.dtbo k3-am654-pcie-usb2.dtbo
+k3-am6548-iot2050-advanced-m2-bkey-ekey-pcie-dtbs := k3-am6548-iot2050-advanced-m2.dtb \
+       k3-am6548-iot2050-advanced-m2-bkey-ekey-pcie.dtbo
+k3-am6548-iot2050-advanced-m2-bkey-usb3-dtbs := k3-am6548-iot2050-advanced-m2.dtb \
+       k3-am6548-iot2050-advanced-m2-bkey-usb3.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am6528-iot2050-basic.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am6528-iot2050-basic-pg2.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am6548-iot2050-advanced.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am6548-iot2050-advanced-m2.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am6548-iot2050-advanced-m2-bkey-ekey-pcie.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am6548-iot2050-advanced-m2-bkey-usb3.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am6548-iot2050-advanced-pg2.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am6548-iot2050-advanced-sm.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am654-base-board.dtb

diff --git a/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-m2-bkey-ekey-pcie.dtso b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-m2-bkey-ekey-pcie.dtso
new file mode 100644 (file)
index 0000000..666237f
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-m2-bkey-ekey-pcie.dtso
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * IOT2050 M.2 variant, overlay for B-key PCIE0_LANE0 + E-key PCIE1_LANE0
+ * Copyright (c) Siemens AG, 2022-2024
+ *
+ * Authors:
+ *   Chao Zeng <chao.zeng@siemens.com>
+ *   Jan Kiszka <jan.kiszka@siemens.com>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/phy/phy.h>
+#include <dt-bindings/gpio/gpio.h>
+
+&pcie0_rc {
+       num-lanes = <1>;
+       phys = <&serdes0 PHY_TYPE_PCIE 1>;
+       phy-names = "pcie-phy0";
+       reset-gpios = <&main_gpio1 15 GPIO_ACTIVE_HIGH>;
+       status = "okay";
+};
+
+&pcie1_rc {
+       status = "okay";
+};

diff --git a/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-m2-bkey-usb3.dtso b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-m2-bkey-usb3.dtso
new file mode 100644 (file)
index 0000000..0f86235
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am6548-iot2050-advanced-m2-bkey-usb3.dtso
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * IOT2050 M.2 variant, overlay for B-key USB3.0 + E-key PCIE1_LANE0
+ * Copyright (c) Siemens AG, 2022-2024
+ *
+ * Authors:
+ *   Chao Zeng <chao.zeng@siemens.com>
+ *   Jan Kiszka <jan.kiszka@siemens.com>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/phy/phy.h>
+#include <dt-bindings/gpio/gpio.h>
+
+&serdes0 {
+       assigned-clock-parents = <&k3_clks 153 7>, <&k3_clks 153 4>;
+};
+
+&pcie0_rc {
+       status = "disabled";
+};
+
+&pcie1_rc {
+       pinctrl-names = "default";
+       pinctrl-0 = <&minipcie_pins_default>;
+
+       num-lanes = <1>;
+       phys = <&serdes1 PHY_TYPE_PCIE 0>;
+       phy-names = "pcie-phy0";
+       reset-gpios = <&wkup_gpio0 27 GPIO_ACTIVE_HIGH>;
+       status = "okay";
+};
+
+&dwc3_0 {
+       assigned-clock-parents = <&k3_clks 151 4>,  /* set REF_CLK to 20MHz i.e. PER0_PLL/48 */
+                                <&k3_clks 151 8>;  /* set PIPE3_TXB_CLK to WIZ8B2M4VSB */
+       phys = <&serdes0 PHY_TYPE_USB3 0>;
+       phy-names = "usb3-phy";
+};
+
+&usb0 {
+       maximum-speed = "super-speed";
+       snps,dis-u1-entry-quirk;
+       snps,dis-u2-entry-quirk;
+};