star64: init

Mostly based on the visionfive 2 config.
No GPU yet.

pine64/star64/opensbi.nix

@@ -0,0 +1,42 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, python3
+, withPlatform ? "generic"
+, withPayload ? null
+, withFDT ? null
+}:
+
+stdenv.mkDerivation rec {
+  pname = "opensbi";
+  version = "1.3-git-2868f26";
+
+  src = fetchFromGitHub {
+    owner = "riscv-software-src";
+    repo = "opensbi";
+    rev = "2868f26131308ff345382084681ea89c5b0159f1";
+    hash = "sha256-E+nVFLSpH6lQ2nVmMlVRTr7qYRVY0ULW7gUvAyTr90I=";
+  };
+
+  postPatch = ''
+    patchShebangs ./scripts
+  '';
+
+  nativeBuildInputs = [ python3 ];
+
+  installFlags = [
+    "I=$(out)"
+  ];
+
+  makeFlags = [
+    "PLATFORM=${withPlatform}"
+    "FW_TEXT_START=0x40000000"
+  ] ++ lib.optionals (withPayload != null) [
+    "FW_PAYLOAD_PATH=${withPayload}"
+  ] ++ lib.optionals (withFDT != null) [
+    "FW_FDT_PATH=${withFDT}"
+  ];
+
+  dontStrip = true;
+  dontPatchELF = true;
+}