ARMv7M: add STM32F1 support
Add ARMv7M STM32F1 support including clocks, timer, gpio, and flash.
Signed-off-by: Matt Porter <mporter@konsulko.com>
diff --git a/arch/arm/cpu/armv7m/stm32f1/soc.c b/arch/arm/cpu/armv7m/stm32f1/soc.c
new file mode 100644
index 0000000..8275ad7
--- /dev/null
+++ b/arch/arm/cpu/armv7m/stm32f1/soc.c
@@ -0,0 +1,36 @@
+/*
+ * (C) Copyright 2015
+ * Kamil Lulko, <rev13@wp.pl>
+ *
+ * Copyright 2015 ATS Advanced Telematics Systems GmbH
+ * Copyright 2015 Konsulko Group, Matt Porter <mporter@konsulko.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/armv7m.h>
+#include <asm/arch/stm32.h>
+
+u32 get_cpu_rev(void)
+{
+ return 0;
+}
+
+int arch_cpu_init(void)
+{
+ configure_clocks();
+
+ /*
+ * Configure the memory protection unit (MPU) to allow full access to
+ * the whole 4GB address space.
+ */
+ writel(0, &V7M_MPU->rnr);
+ writel(0, &V7M_MPU->rbar);
+ writel((V7M_MPU_RASR_AP_RW_RW | V7M_MPU_RASR_SIZE_4GB
+ | V7M_MPU_RASR_EN), &V7M_MPU->rasr);
+ writel(V7M_MPU_CTRL_ENABLE | V7M_MPU_CTRL_HFNMIENA, &V7M_MPU->ctrl);
+
+ return 0;
+}