On Mon, 2 May 2022, Rob Herring wrote:
On Mon, May 2, 2022 at 11:58 AM <matthew.gerlach@xxxxxxxxxxxxxxx> wrote:
From: Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx>
Add a device tree for the n6000 instantiation of Agilex
Hard Processor System (HPS).
Signed-off-by: Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/intel/Makefile | 1 +
.../boot/dts/intel/socfpga_agilex_n6000.dts | 77 +++++++++++++++++++
2 files changed, 78 insertions(+)
create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex_n6000.dts
diff --git a/arch/arm64/boot/dts/intel/Makefile b/arch/arm64/boot/dts/intel/Makefile
index 0b5477442263..1425853877cc 100644
--- a/arch/arm64/boot/dts/intel/Makefile
+++ b/arch/arm64/boot/dts/intel/Makefile
@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-only
dtb-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga_agilex_socdk.dtb \
socfpga_agilex_socdk_nand.dtb \
+ socfpga_agilex_n6000.dtb \
Alphabetical order.
Got it.
socfpga_n5x_socdk.dtb
dtb-$(CONFIG_ARCH_KEEMBAY) += keembay-evm.dtb
diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex_n6000.dts b/arch/arm64/boot/dts/intel/socfpga_agilex_n6000.dts
new file mode 100644
index 000000000000..07f5a5983e5c
--- /dev/null
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex_n6000.dts
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021-2022, Intel Corporation
+ */
+#include "socfpga_agilex.dtsi"
+
+/ {
+ model = "SoCFPGA Agilex n6000";
+
+ aliases {
+ serial0 = &uart1;
+ serial1 = &uart0;
+ ethernet0 = &gmac0;
+ ethernet1 = &gmac1;
+ ethernet2 = &gmac2;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory {
+ device_type = "memory";
+ /* We expect the bootloader to fill in the reg */
+ reg = <0 0 0 0>;
+ };
+
+ soc {
+ clocks {
+ osc1 {
+ clock-frequency = <25000000>;
+ };
+ };
+ agilex_hps_bridges: bridge@80000000 {
+ compatible = "simple-bus";
+ reg = <0x80000000 0x60000000>,
+ <0xf9000000 0x00100000>;
+ reg-names = "axi_h2f", "axi_h2f_lw";
+ #address-cells = <0x2>;
+ #size-cells = <0x1>;
+ ranges = <0x00000000 0x00000000 0xf9000000 0x00001000>;
+
+ uio_cp_eng@0xf9000000 {
Unit addresses shouldn't have '0x' and the address is wrong as it
should match the child address (0). dtc will tell you this though you
need 'W=1'. Run this and schema checks and don't add new warnings.
Thanks for the pointers. I will run with W=1 and run schema checks and
submit a v2.
+ compatible = "generic-uio";
NAK. Not documented and that's because this is not a h/w device.
Got it. I will create a meaningful name for the h/w device and submit
documentation.
+ reg = <0x00000000 0x00000000 0x00001000>;
+ status = "okay";
That's the default.
I will remove redundant status field.
+ };
+ };
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&spi0 {
+ status = "okay";
+
+ spidev: spidev@0 {
+ status = "okay";
+ compatible = "linux,spidev";
+ spi-max-frequency = <25000000>;
+ reg = <0>;
+ };
+};
+
+&watchdog0 {
+ status = "okay";
+};
+
+&fpga_mgr {
+ status = "disabled";
+};
--
2.25.1
