arm: add option for TPL support in arm 32bit

Some options like TPL_SYS_THUMB_BUILD, TPL_USE_ARCH_MEMCPY
and TPL_USE_ARCH_MEMCPY are needed for TPL build in 32bit arm.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f91c590f6d8314312599195667b2482334a673e6..a3d67e43f009d70187e98ece20c6f2426eee2641 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -338,6 +338,17 @@ config SPL_SYS_THUMB_BUILD
           density. For ARM architectures that support Thumb2 this flag will
           result in Thumb2 code generated by GCC.
 
+config TPL_SYS_THUMB_BUILD
+       bool "Build TPL using the Thumb instruction set"
+       default y if SYS_THUMB_BUILD
+       depends on TPL && !ARM64
+       help
+          Use this flag to build SPL using the Thumb instruction set for
+          ARM architectures. Thumb instruction set provides better code
+          density. For ARM architectures that support Thumb2 this flag will
+          result in Thumb2 code generated by GCC.
+
+
 config SYS_L2CACHE_OFF
        bool "L2cache off"
        help
@@ -373,6 +384,15 @@ config SPL_USE_ARCH_MEMCPY
          Such implementation may be faster under some conditions
          but may increase the binary size.
 
+config TPL_USE_ARCH_MEMCPY
+       bool "Use an assembly optimized implementation of memcpy for TPL"
+       default y if USE_ARCH_MEMCPY
+       depends on !ARM64
+       help
+         Enable the generation of an optimized version of memcpy.
+         Such implementation may be faster under some conditions
+         but may increase the binary size.
+
 config USE_ARCH_MEMSET
        bool "Use an assembly optimized implementation of memset"
        default y
@@ -391,6 +411,15 @@ config SPL_USE_ARCH_MEMSET
          Such implementation may be faster under some conditions
          but may increase the binary size.
 
+config TPL_USE_ARCH_MEMSET
+       bool "Use an assembly optimized implementation of memset for TPL"
+       default y if USE_ARCH_MEMSET
+       depends on !ARM64
+       help
+         Enable the generation of an optimized version of memset.
+         Such implementation may be faster under some conditions
+         but may increase the binary size.
+
 config ARM64_SUPPORT_AARCH32
        bool "ARM64 system support AArch32 execution state"
        default y if ARM64 && !TARGET_THUNDERX_88XX