1 files changed, 40 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/mach-stm32/soc.c b/roms/u-boot/arch/arm/mach-stm32/soc.c
new file mode 100644
index 000000000..0bd8d7b22
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-stm32/soc.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
+ * Author(s): Patrice Chotard, <patrice.chotard@foss.st.com> for STMicroelectronics.
+ */
+
+#include <common.h>
+#include <init.h>
+#include <asm/io.h>
+#include <asm/armv7_mpu.h>
+
+int arch_cpu_init(void)
+{
+	int i;
+
+	struct mpu_region_config stm32_region_config[] = {
+		/*
+		 * Make SDRAM area cacheable & executable.
+		 */
+#if defined(CONFIG_STM32F4)
+		{ 0x00000000, REGION_0, XN_DIS, PRIV_RW_USR_RW,
+		O_I_WB_RD_WR_ALLOC, REGION_512MB },
+#endif
+
+		{ 0x90000000, REGION_1, XN_DIS, PRIV_RW_USR_RW,
+		SHARED_WRITE_BUFFERED, REGION_256MB },
+
+#if defined(CONFIG_STM32F7) || defined(CONFIG_STM32H7)
+		{ 0xC0000000, REGION_0, XN_DIS, PRIV_RW_USR_RW,
+		O_I_WB_RD_WR_ALLOC, REGION_512MB },
+#endif
+	};
+
+	disable_mpu();
+	for (i = 0; i < ARRAY_SIZE(stm32_region_config); i++)
+		mpu_config(&stm32_region_config[i]);
+	enable_mpu();
+
+	return 0;
+}