platform: msm_shared: Add support for V2 DTB format
Add support for V2 DTB format parsing for appended DTB
and also one DTB can contain multiple platform ids, add
support to parse all the platform Ids from the dtb.
CRs-Fixed: 538429
Change-Id: I771aa090615154fb6a6a08f7e62a6c6b3c9e0970
diff --git a/platform/msm_shared/include/dev_tree.h b/platform/msm_shared/include/dev_tree.h
index b88a47d..85aa40d 100644
--- a/platform/msm_shared/include/dev_tree.h
+++ b/platform/msm_shared/include/dev_tree.h
@@ -43,6 +43,18 @@
#define DTB_PAD_SIZE 1024
+/*
+ * For DTB V1: The DTB entries would be of the format
+ * qcom,msm-id = <msm8974, CDP, rev_1>; (3 * sizeof(uint32_t))
+ * For DTB V2: The DTB entries would be of the format
+ * qcom,msm-id = <msm8974, rev_1>; (2 * sizeof(uint32_t))
+ * qcom,board-id = <CDP, subtype_ID>; (2 * sizeof(uint32_t))
+ * The macros below are defined based on these.
+ */
+#define DT_ENTRY_V1_SIZE 0xC
+#define PLAT_ID_SIZE 0x8
+#define BOARD_ID_SIZE 0x8
+
struct dt_entry
{
uint32_t platform_id;
@@ -60,6 +72,18 @@
uint32_t num_entries;
};
+struct plat_id
+{
+ uint32_t platform_id;
+ uint32_t soc_rev;
+};
+
+struct board_id
+{
+ uint32_t variant_id;
+ uint32_t platform_subtype;
+};
+
enum dt_err_codes
{
DT_OP_SUCCESS,