fix(rotpk): move rotpk definitions out of arm_def.h

The file arm_def.h currently contains common definitions used by ARM
platforms. However, some platforms may have their own definitions,
allowing them to avoid a direct dependency on arm_def.h. For a clean
platform port of arm_def.h, none of the source files should directly
include arm_def.h; instead, they should include the platform header
which would indirectly include the required definitions.

Presently, the rotpk module has a source file that directly includes
arm_def.h. This could lead to compilation issues if the platform
incorporating the rotpk module has a separate implementation of some or
all of the definitions in arm_def.h file. To address this, move the
relevant definitions out of arm_def.h and into rotpk_def.h.

Signed-off-by: Rohit Mathew <Rohit.Mathew@arm.com>
Change-Id: I9e8b0d319391f9a167af5c69a7b2d42ac488e7b4
diff --git a/include/plat/arm/board/common/rotpk/rotpk_def.h b/include/plat/arm/board/common/rotpk/rotpk_def.h
new file mode 100644
index 0000000..685c21a
--- /dev/null
+++ b/include/plat/arm/board/common/rotpk/rotpk_def.h
@@ -0,0 +1,24 @@
+
+/*
+ * Copyright (c) 2024, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef ROTPK_DEF_H
+#define ROTPK_DEF_H
+
+/*
+ * Definitions related to ROTPK
+ */
+
+/*
+ * Root of trust key lengths
+ */
+#ifndef ARM_ROTPK_HEADER_LEN
+#define ARM_ROTPK_HEADER_LEN		19
+#endif
+#ifndef ARM_ROTPK_HASH_LEN
+#define ARM_ROTPK_HASH_LEN		32
+#endif
+#endif /* ROTPK_DEF_H */
diff --git a/include/plat/arm/common/arm_def.h b/include/plat/arm/common/arm_def.h
index e098c10..54b184d 100644
--- a/include/plat/arm/common/arm_def.h
+++ b/include/plat/arm/common/arm_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2023, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2024, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -12,6 +12,7 @@
 #include <drivers/arm/gic_common.h>
 #include <lib/utils_def.h>
 #include <lib/xlat_tables/xlat_tables_defs.h>
+#include <plat/arm/board/common/rotpk/rotpk_def.h>
 #include <plat/arm/common/smccc_def.h>
 #include <plat/common/common_def.h>
 
@@ -19,11 +20,6 @@
  * Definitions common to all ARM standard platforms
  *****************************************************************************/
 
-/*
- * Root of trust key lengths
- */
-#define ARM_ROTPK_HEADER_LEN		19
-#define ARM_ROTPK_HASH_LEN		32
 
 /* Special value used to verify platform parameters from BL2 to BL31 */
 #define ARM_BL31_PLAT_PARAM_VAL		ULL(0x0f1e2d3c4b5a6978)
diff --git a/plat/arm/board/common/rotpk/arm_dev_rotpk.S b/plat/arm/board/common/rotpk/arm_dev_rotpk.S
index a7fadf6..22ae9d3 100644
--- a/plat/arm/board/common/rotpk/arm_dev_rotpk.S
+++ b/plat/arm/board/common/rotpk/arm_dev_rotpk.S
@@ -1,17 +1,10 @@
 /*
- * Copyright (c) 2021-2022, ARM Limited. All rights reserved.
+ * Copyright (c) 2021-2024, ARM Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-/* corstone1000 platform provides custom values for the macros defined in
- * arm_def.h , so only platform_def.h needs to be included
- */
-#if !defined(TARGET_PLATFORM_FVP) && !defined(TARGET_PLATFORM_FPGA)
-#include "plat/arm/common/arm_def.h"
-#else
-#include <platform_def.h>
-#endif
+#include <plat/arm/board/common/rotpk/rotpk_def.h>
 
 	.global arm_rotpk_header
 	.section .rodata.arm_rotpk_hash, "a"
diff --git a/plat/arm/board/corstone1000/common/include/platform_def.h b/plat/arm/board/corstone1000/common/include/platform_def.h
index 442d187..6953b89 100644
--- a/plat/arm/board/corstone1000/common/include/platform_def.h
+++ b/plat/arm/board/corstone1000/common/include/platform_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2023, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2021-2024, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -10,15 +10,13 @@
 #include <common/tbbr/tbbr_img_def.h>
 #include <lib/utils_def.h>
 #include <lib/xlat_tables/xlat_tables_defs.h>
+#include <plat/arm/board/common/rotpk/rotpk_def.h>
 #include <plat/arm/board/common/v2m_def.h>
 #include <plat/arm/common/arm_spm_def.h>
 #include <plat/arm/common/smccc_def.h>
 #include <plat/common/common_def.h>
 #include <plat/arm/soc/common/soc_css_def.h>
 
-#define ARM_ROTPK_HEADER_LEN		19
-#define ARM_ROTPK_HASH_LEN		32
-
 /* Special value used to verify platform parameters from BL2 to BL31 */
 #define ARM_BL31_PLAT_PARAM_VAL		ULL(0x0f1e2d3c4b5a6978)