arm: Only support ARM64_CRC32 when using GCC

Today, only gcc has __builtin_aarch64_crc32b (clang-16 does not, for
example). Make this option depend on CC_IS_GCC.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f0118e2..d7e6578 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -12,7 +12,7 @@ config ARM64
 
 config ARM64_CRC32
        bool "Enable support for CRC32 instruction"
-       depends on ARM64
+       depends on ARM64 && CC_IS_GCC
        default y
        help
          ARMv8 implements dedicated crc32 instruction for crc32 calculation.