stm32mp1: Add DDR support and its security with TZC400
The DDR driver is under dual license, BSD and GPLv2.
The configuration parameters are taken from device tree.
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
diff --git a/plat/st/stm32mp1/stm32mp1_dt.c b/plat/st/stm32mp1/stm32mp1_dt.c
index 7caf655..bde968a 100644
--- a/plat/st/stm32mp1/stm32mp1_dt.c
+++ b/plat/st/stm32mp1/stm32mp1_dt.c
@@ -11,7 +11,9 @@
#include <stm32_gpio.h>
#include <stm32mp1_clk.h>
#include <stm32mp1_clkfunc.h>
+#include <stm32mp1_ddr.h>
#include <stm32mp1_dt.h>
+#include <stm32mp1_ram.h>
#define DT_GPIO_BANK_SHIFT 12
#define DT_GPIO_BANK_MASK 0x1F000U
@@ -441,6 +443,24 @@
}
/*******************************************************************************
+ * This function gets DDR size information from the DT.
+ * Returns value in bytes if success, and STM32MP1_DDR_SIZE_DFLT else.
+ ******************************************************************************/
+uint32_t dt_get_ddr_size(void)
+{
+ int node;
+
+ node = fdt_node_offset_by_compatible(fdt, -1, DT_DDR_COMPAT);
+ if (node < 0) {
+ INFO("%s: Cannot read DDR node in DT\n", __func__);
+ return STM32MP1_DDR_SIZE_DFLT;
+ }
+
+ return fdt_read_uint32_default(node, "st,mem-size",
+ STM32MP1_DDR_SIZE_DFLT);
+}
+
+/*******************************************************************************
* This function retrieves board model from DT
* Returns string taken from model node, NULL otherwise
******************************************************************************/