clk: stm32f7: retrieve PWR base address from DT
PWR IP is used to enable over-drive feature in
order to reach a higher frequency.
Get its base address from DT instead of hard-coded value
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
diff --git a/arch/arm/include/asm/arch-stm32f4/stm32_pwr.h b/arch/arm/include/asm/arch-stm32f4/stm32_pwr.h
new file mode 100644
index 0000000..bfe5469
--- /dev/null
+++ b/arch/arm/include/asm/arch-stm32f4/stm32_pwr.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
+ * Author(s): Patrice Chotard, <patrice.chotard@st.com> for STMicroelectronics.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __STM32_PWR_H_
+
+/*
+ * Offsets of some PWR registers
+ */
+#define PWR_CR1_ODEN BIT(16)
+#define PWR_CR1_ODSWEN BIT(17)
+#define PWR_CSR1_ODRDY BIT(16)
+#define PWR_CSR1_ODSWRDY BIT(17)
+
+struct stm32_pwr_regs {
+ u32 cr1; /* power control register 1 */
+ u32 csr1; /* power control/status register 2 */
+};
+
+#endif /* __STM32_PWR_H_ */