From ba072736752e55c585db5ed2de281ad8a491f7b3 Mon Sep 17 00:00:00 2001
From: souldbminersmwc <souldbyt@gmail.com>
Date: Tue, 25 Aug 2026 14:49:57 -0400
Subject: [PATCH] bpmpfw reliability fix

---
 .gitignore                                 |  1 +
 Source/hoc-clk/build.sh                    | 18 +++++++++---------
 Source/hoc-clk/sysmodule/src/bpmp/bpmp.cpp | 22 ++++++++--------------
 3 files changed, 18 insertions(+), 23 deletions(-)

diff --git a/.gitignore b/.gitignore
index 76dc4eee..5ec2190f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ build
 Source/hekate
 dist/*
 !dist/.gitignore
+Source/hoc-clk/sysmodule/data/bpmpfw.bin
diff --git a/Source/hoc-clk/build.sh b/Source/hoc-clk/build.sh
index f06780ec..74634101 100755
--- a/Source/hoc-clk/build.sh
+++ b/Source/hoc-clk/build.sh
@@ -20,6 +20,15 @@ for arg in "$@"; do
 done
 
 echo
+echo "*** Compiling bpmpfw ***"
+pushd "$ROOT_DIR/bpmpfw"
+make -j$CORES
+popd > /dev/null
+
+mkdir -p "$ROOT_DIR/sysmodule/data"
+cp -vf "$ROOT_DIR/bpmpfw/out/bpmpfw.bin" "$ROOT_DIR/sysmodule/data/bpmpfw.bin"
+echo
+
 echo "*** Compiling hoc-clk ***"
 TITLE_ID="$(grep -oP '"title_id":\s*"0x\K(\w+)' "$ROOT_DIR/sysmodule/perms.json")"
 
@@ -42,15 +51,6 @@ mkdir -p "$DIST_DIR/switch/.overlays"
 cp -vf "$ROOT_DIR/overlay/out/horizon-oc-overlay.ovl" "$DIST_DIR/switch/.overlays/horizon-oc-overlay.ovl"
 echo
 
-echo "*** Compiling bpmpfw ***"
-pushd "$ROOT_DIR/bpmpfw"
-make -j$CORES
-popd > /dev/null
-
-mkdir -p "$DIST_DIR/config/horizon-oc"
-cp -vf "$ROOT_DIR/bpmpfw/out/bpmpfw.bin" "$DIST_DIR/config/horizon-oc/bpmpfw.bin"
-echo
-
 echo "*** Copying assets ***"
 mkdir -p "$DIST_DIR/config/horizon-oc"
 cp -vf "$ROOT_DIR/config.ini.template" "$DIST_DIR/config/horizon-oc/config.ini.template"
diff --git a/Source/hoc-clk/sysmodule/src/bpmp/bpmp.cpp b/Source/hoc-clk/sysmodule/src/bpmp/bpmp.cpp
index 9485e559..5ca299f5 100644
--- a/Source/hoc-clk/sysmodule/src/bpmp/bpmp.cpp
+++ b/Source/hoc-clk/sysmodule/src/bpmp/bpmp.cpp
@@ -15,7 +15,6 @@
  *
  */
 
-#include <cstdio>
 #include <cstring>
 #include <switch.h>
 
@@ -25,6 +24,8 @@
 #include "../mapping/mem_map.hpp"
 #include "bpmp.hpp"
 
+#include "bpmpfw_bin.h"
+
 namespace bpmp {
 
     namespace {
@@ -60,6 +61,7 @@ namespace bpmp {
         constexpr u32 FwStagingSize  = 0x8000;
         constexpr u64 WorkRamPhysBase = FwIramPhysBase + FwStagingSize; // matches bpmpfw's WorkRamStart
 
+        /* secmon will return error unless we apply thiss workaround */
         alignas(4096) u8 s_fwStageBuf[FwStagingSize];
 
         HocClkBpmpSharedInfo s_sharedInfo = {};
@@ -108,23 +110,15 @@ namespace bpmp {
             return (Result)1;
         }
 
-        std::memset(s_fwStageBuf, 0, sizeof(s_fwStageBuf));
-
-        FILE *f = fopen("sdmc:/config/horizon-oc/bpmpfw.bin", "rb");
-        if (!f) {
-            fileUtils::LogLine("[bpmp] StartBpmfwExecution: bpmpfw.bin not found");
+        const size_t fw_size = bpmpfw_bin_size;
+        if (fw_size == 0 || fw_size > FwStagingSize) {
+            fileUtils::LogLine("[bpmp] StartBpmfwExecution: bpmpfw of %zu bytes is invalid (should not happen)!", fw_size);
             return (Result)1;
         }
 
-        const size_t fw_size = fread(s_fwStageBuf, 1, sizeof(s_fwStageBuf), f);
-        fclose(f);
+        std::memcpy(s_fwStageBuf, bpmpfw_bin, fw_size);
 
-        if (fw_size == 0) {
-            fileUtils::LogLine("[bpmp] StartBpmfwExecution: bpmpfw.bin is empty");
-            return (Result)1;
-        }
-
-        fileUtils::LogLine("[bpmp] StartBpmfwExecution: loaded %zu bytes, loading at 0x%llx",
+        fileUtils::LogLine("[bpmp] StartBpmfwExecution: loading %zu bytes at 0x%llx",
                             fw_size, static_cast<unsigned long long>(FwIramPhysBase));
 
         /* Set BPMP reset */