[PATCH v1 4/5] arm: socfpga: agilex7: Add DDR handoff data support for AGILEX7

[sin.hui.kho@intel.com]

From: Sin Hui Kho <sin.hui.kho@intel.com>

Add AGILEX7 supported DDR handoff data

Signed-off-by: Sin Hui Kho <sin.hui.kho@intel.com>
---
 arch/arm/mach-socfpga/include/mach/handoff_soc64.h | 11 ++++++++++-
 arch/arm/mach-socfpga/wrap_handoff_soc64.c         |  4 ++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-socfpga/include/mach/handoff_soc64.h b/arch/arm/mach-socfpga/include/mach/handoff_soc64.h
index b0134dd9bd..bfda3c42bb 100644
--- a/arch/arm/mach-socfpga/include/mach/handoff_soc64.h
+++ b/arch/arm/mach-socfpga/include/mach/handoff_soc64.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0
  *
- * Copyright (C) 2016-2021 Intel Corporation <www.intel.com>
+ * Copyright (C) 2016-2023 Intel Corporation <www.intel.com>
  *
  */
 
@@ -27,7 +27,16 @@
 	IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX) || \
 	IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX7)
 #define SOC64_HANDOFF_BASE		0xFFE3F000
+#if IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX7)
+#define SOC64_HANDOFF_MISC		(SOC64_HANDOFF_BASE + 0x628)
+/* DDR handoff */
+#define SOC64_HANDOFF_MAGIC_DDR	0x5344524D
+#define SOC64_HANDOFF_DDR_BASE	(SOC64_HANDOFF_BASE + 0x610)
+#define SOC64_HANDOFF_DDR_LEN	2
+#define SOC64_HANDOFF_DDR_INTERLEAVING_MODE_MASK	BIT(0)
+#else
 #define SOC64_HANDOFF_MISC		(SOC64_HANDOFF_BASE + 0x610)
+#endif
 #elif IS_ENABLED(CONFIG_TARGET_SOCFPGA_N5X)
 #define SOC64_HANDOFF_BASE		0xFFE5F000
 #define SOC64_HANDOFF_MISC		(SOC64_HANDOFF_BASE + 0x630)
diff --git a/arch/arm/mach-socfpga/wrap_handoff_soc64.c b/arch/arm/mach-socfpga/wrap_handoff_soc64.c
index e7cb5ea89c..1abbe5a0d0 100644
--- a/arch/arm/mach-socfpga/wrap_handoff_soc64.c
+++ b/arch/arm/mach-socfpga/wrap_handoff_soc64.c
@@ -31,6 +31,10 @@ static enum endianness check_endianness(u32 handoff)
 	case SOC64_HANDOFF_DDR_PHY_INIT_ENGINE_MAGIC:
 		debug("%s: PHY engine handoff data\n", __func__);
 		return LITTLE_ENDIAN;
+#elif IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX7)
+	case SOC64_HANDOFF_MAGIC_DDR:
+		debug("%s: SOC64_HANDOFF_MAGIC_DDR\n", __func__);
+		return BIG_ENDIAN;
 #endif
 	default:
 		debug("%s: Unknown endianness!!\n", __func__);
-- 
2.25.1