arm-trusted-firmware-rockchip: add m0 gcc toolchain

rk3399 ATF requires arm toolchain to build the m0 pmu driver.
As OpenWrt doesn't ship this toolchain so download the prebuilt one
just like what we did in arm-trusted-firmware-mvebu.

Fixes: 5d1cb52da062 ("arm-trusted-firmware-rockchip: Update to 2.9")
Reported-by: Wurzer Juergen <wurzer.juergen@gmail.com>
Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>

diff --git a/package/boot/arm-trusted-firmware-rockchip/Makefile b/package/boot/arm-trusted-firmware-rockchip/Makefile
index f5b9d6b16db10a37fb25959d90b04d157dd0bb2c..aaae4ce3929f0a3a2c9945061720381e66d29eb9 100644 (file)
--- a/package/boot/arm-trusted-firmware-rockchip/Makefile
+++ b/package/boot/arm-trusted-firmware-rockchip/Makefile
@@ -37,6 +37,33 @@ TFA_TARGETS:= \
        rk3328 \
        rk3399
 
+ifeq ($(BUILD_VARIANT),rk3399)
+  M0_GCC_NAME:=gcc-arm
+  M0_GCC_RELEASE:=11.2-2022.02
+  M0_GCC_VERSION:=$(HOST_ARCH)-arm-none-eabi
+  M0_GCC_SOURCE:=$(M0_GCC_NAME)-$(M0_GCC_RELEASE)-$(M0_GCC_VERSION).tar.xz
+
+  define Download/m0-gcc
+    FILE:=$(M0_GCC_SOURCE)
+    URL:=https://developer.arm.com/-/media/Files/downloads/gnu/$(M0_GCC_RELEASE)/binrel
+  ifeq ($(HOST_ARCH),aarch64)
+    HASH:=ef1d82e5894e3908cb7ed49c5485b5b95deefa32872f79c2b5f6f5447cabf55f
+  else
+    HASH:=8c5acd5ae567c0100245b0556941c237369f210bceb196edfe5a2e7532c60326
+  endif
+  endef
+
+  define Build/Prepare
+       $(eval $(call Download,m0-gcc))
+       $(call Build/Prepare/Default)
+
+       xzcat $(DL_DIR)/$(M0_GCC_SOURCE) | $(HOST_TAR) -C $(PKG_BUILD_DIR)/ $(TAR_OPTIONS)
+  endef
+
+  TFA_MAKE_FLAGS+= \
+    M0_CROSS_COMPILE=$(PKG_BUILD_DIR)/$(M0_GCC_NAME)-$(M0_GCC_RELEASE)-$(M0_GCC_VERSION)/bin/arm-none-eabi-
+endif
+
 define Package/trusted-firmware-a/install
        $(INSTALL_DIR) $(STAGING_DIR_IMAGE)
        $(INSTALL_DATA) $(PKG_BUILD_DIR)/build/$(PLAT)/release/bl31/bl31.elf $(STAGING_DIR_IMAGE)/$(BUILD_VARIANT)_bl31.elf