spl: atf: add support for LOAD_IMAGE_V2

Newer platforms use the LOAD_IMAGE_V2 parameter passing method. Add
support for it.

Signed-off-by: Michael Walle <michael@walle.cc>

2 files changed, 65 insertions, 0 deletions

diff --git a/include/atf_common.h b/include/atf_common.h
index e173a10..d69892f 100644
--- a/include/atf_common.h
+++ b/include/atf_common.h
@@ -14,8 +14,14 @@
 #define ATF_PARAM_EP		0x01
 #define ATF_PARAM_IMAGE_BINARY	0x02
 #define ATF_PARAM_BL31		0x03
+#define ATF_PARAM_BL_PARAMS	0x05
 
 #define ATF_VERSION_1	0x01
+#define ATF_VERSION_2	0x02
+
+#define ATF_BL31_IMAGE_ID	0x03
+#define ATF_BL32_IMAGE_ID	0x04
+#define ATF_BL33_IMAGE_ID	0x05
 
 #define ATF_EP_SECURE	0x0
 #define ATF_EP_NON_SECURE	0x1
@@ -121,6 +127,9 @@ struct atf_image_info {
 	struct param_header h;
 	uintptr_t image_base;   /* physical address of base of image */
 	uint32_t image_size;    /* bytes read from image file */
+#if CONFIG_IS_ENABLED(ATF_LOAD_IMAGE_V2)
+	uint32_t image_max_size;
+#endif
 };
 
 /*****************************************************************************
@@ -162,6 +171,27 @@ struct bl31_params {
 	struct atf_image_info *bl33_image_info;
 };
 
+/* BL image node in the BL image execution sequence */
+struct bl_params_node {
+	unsigned int image_id;
+	struct atf_image_info *image_info;
+	struct entry_point_info *ep_info;
+	struct bl_params_node *next_params_info;
+};
+
+/*
+ * BL image head node in the BL image execution sequence
+ * It is also used to pass information to next BL image.
+ */
+struct bl_params {
+	struct param_header h;
+	struct bl_params_node *head;
+};
+
+#define for_each_bl_params_node(bl_params, node) \
+	for ((node) = (bl_params)->head; \
+	     (node); \
+	     (node) = (node)->next_params_info)
 
 #endif /*__ASSEMBLY__ */
 
diff --git a/include/spl.h b/include/spl.h
index fd92837..374a295 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -564,6 +564,41 @@ struct bl31_params *bl2_plat_get_bl31_params(uintptr_t bl32_entry,
 struct bl31_params *bl2_plat_get_bl31_params_default(uintptr_t bl32_entry,
 						     uintptr_t bl33_entry,
 						     uintptr_t fdt_addr);
+
+/**
+ * bl2_plat_get_bl31_params_v2() - return params for bl31
+ * @bl32_entry:	address of BL32 executable (secure)
+ * @bl33_entry:	address of BL33 executable (non secure)
+ * @fdt_addr:	address of Flat Device Tree
+ *
+ * This function does the same as bl2_plat_get_bl31_params() except that is is
+ * used for the new LOAD_IMAGE_V2 option, which uses a slightly different
+ * method to pass the parameters.
+ *
+ * Return: bl31 params structure pointer
+ */
+struct bl_params *bl2_plat_get_bl31_params_v2(uintptr_t bl32_entry,
+					      uintptr_t bl33_entry,
+					      uintptr_t fdt_addr);
+
+/**
+ * bl2_plat_get_bl31_params_v2_default() - prepare params for bl31.
+ * @bl32_entry:	address of BL32 executable (secure)
+ * @bl33_entry:	address of BL33 executable (non secure)
+ * @fdt_addr:	address of Flat Device Tree
+ *
+ * This is the default implementation of bl2_plat_get_bl31_params_v2(). It
+ * prepares the linked list of the bl31 params, populates the image types and
+ * set the entry points for bl32 and bl33 (if available).
+ *
+ * NOTE: The memory is statically allocated, thus this function should be
+ * called only once. All subsequent calls will overwrite any changes.
+ *
+ * Return: bl31 params structure pointer
+ */
+struct bl_params *bl2_plat_get_bl31_params_v2_default(uintptr_t bl32_entry,
+						      uintptr_t bl33_entry,
+						      uintptr_t fdt_addr);
 /**
  * spl_optee_entry - entry function for optee
  *