feat(stm32mp2): enable DDR sub-system clock
Create a DDR helper files, and add a function to enable DDR clocks
in RCC_DDRCPCFGR register.
Call this ddr_sub_system_clk_init() just before clock driver init,
as it needs to be done before enabling DDR PLL clock (PLL2).
Change-Id: I365d6aa034363d0c036ce2d9f944f077ba86e193
Signed-off-by: Yann Gautier <yann.gautier@st.com>
diff --git a/include/drivers/st/stm32mp2_ddr_helpers.h b/include/drivers/st/stm32mp2_ddr_helpers.h
new file mode 100644
index 0000000..069fb83
--- /dev/null
+++ b/include/drivers/st/stm32mp2_ddr_helpers.h
@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2024, STMicroelectronics - All Rights Reserved
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STM32MP2_DDR_HELPERS_H
+#define STM32MP2_DDR_HELPERS_H
+
+void ddr_sub_system_clk_init(void);
+
+#endif /* STM32MP2_DDR_HELPERS_H */