From e581be8df7aa4a5cb753821448c06b2982a427ba Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Sun, 10 Feb 2019 08:52:29 +1100
Subject: [PATCH] HAL_ChibiOS: optionally disable DCache on H7

---
 libraries/AP_HAL_ChibiOS/hwdef/common/board.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libraries/AP_HAL_ChibiOS/hwdef/common/board.c b/libraries/AP_HAL_ChibiOS/hwdef/common/board.c
index 59d3404ce5..6d535e5921 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/common/board.c
+++ b/libraries/AP_HAL_ChibiOS/hwdef/common/board.c
@@ -225,6 +225,9 @@ void __early_init(void) {
   stm32_gpio_init();
 #endif
   stm32_clock_init();
+#if defined(HAL_DISABLE_DCACHE)
+  SCB_DisableDCache();
+#endif
 }
 
 void __late_init(void) {