[cov,test] Fix owner_block flash layout under coverage mode

Under coverage mode, the ROM_EXT size increases, which can break the
flash layout assumptions in certain tests. This change introduces
specific constants for production and coverage builds and ensures that
owner_block unit tests use the production flash layout even when coverage
is enabled.

Change-Id: I52e17fe8fe17f2d98456a25a77c19066e2ee0703
Signed-off-by: Yi-Hsuan Deng <[email protected]>

Author: sasdf

sw/device/silicon_creator/lib/base/chip.h

@@ -70,10 +70,12 @@
  * Allowed bounds for the `length` field of a ROM_EXT manifest.
  */
 #define CHIP_ROM_EXT_SIZE_MIN CHIP_MANIFEST_SIZE
-#ifndef OT_COVERAGE_ENABLED
-#define CHIP_ROM_EXT_SIZE_MAX 0x10000
+#define CHIP_ROM_EXT_SIZE_MAX_PRODUCTION_BUILD 0x10000
+#define CHIP_ROM_EXT_SIZE_MAX_COVERAGE_BUILD 0x20000
+#ifdef OT_COVERAGE_ENABLED
+#define CHIP_ROM_EXT_SIZE_MAX CHIP_ROM_EXT_SIZE_MAX_COVERAGE_BUILD
 #else  // OT_COVERAGE_ENABLED
-#define CHIP_ROM_EXT_SIZE_MAX 0x20000
+#define CHIP_ROM_EXT_SIZE_MAX CHIP_ROM_EXT_SIZE_MAX_PRODUCTION_BUILD
 #endif  // OT_COVERAGE_ENABLED
 #define CHIP_ROM_EXT_RESIZABLE_SIZE_MAX \
   (CHIP_ROM_EXT_SIZE_MAX + CHIP_BL0_SIZE_MAX)

sw/device/silicon_creator/lib/ownership/owner_block.c

@@ -23,6 +23,12 @@
 owner_block_t owner_page[2];
 owner_page_status_t owner_page_valid[2];
 
+// Force production flash layout for unit test coverage
+#if defined(OT_COVERAGE_ENABLED) && !defined(OT_PLATFORM_RV32)
+#undef CHIP_ROM_EXT_SIZE_MAX
+#define CHIP_ROM_EXT_SIZE_MAX CHIP_ROM_EXT_SIZE_MAX_PRODUCTION_BUILD
+#endif  // defined(OT_COVERAGE_ENABLED) && !defined(OT_PLATFORM_RV32)
+
 enum {
   kFlashBankSize = FLASH_CTRL_PARAM_REG_PAGES_PER_BANK,
   kFlashPageSize = FLASH_CTRL_PARAM_BYTES_PER_PAGE,