initial buildroot for linux 5.15

package/opus/Config.in

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+config BR2_PACKAGE_OPUS
+	bool "opus"
+	help
+	  The Opus codec is designed for interactive speech and audio
+	  transmission over the Internet. It is designed by the IETF
+	  Codec Working Group and incorporates technology from Skype's
+	  SILK codec and Xiph.Org's CELT codec.
+
+	  It is intended to suit a wide range of interactive audio
+	  applications, including Voice over IP, videoconferencing,
+	  in-game chat, and even remote live music performances. It
+	  can scale from low bit-rate narrowband speech to very high
+	  quality stereo music.
+
+	  http://opus-codec.org
+
+if BR2_PACKAGE_OPUS
+
+config BR2_PACKAGE_OPUS_FIXED_POINT
+	bool "use fixed-point" if !BR2_SOFT_FLOAT
+	default y if BR2_SOFT_FLOAT
+	help
+	  Compile without floating point operations (for machines
+	  without a fast enough FPU).
+
+endif

package/opus/opus.hash

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+# From http://downloads.xiph.org/releases/opus/SHA256SUMS.txt
+sha256 65b58e1e25b2a114157014736a3d9dfeaad8d41be1c8179866f144a2fb44ff9d  opus-1.3.1.tar.gz
+
+# Hash for license file
+sha256 8338ce8d922bb4416ce3dd1e5680173332435e3f0755007ac7801ccd674fe682  COPYING

package/opus/opus.mk

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+################################################################################
+#
+# opus
+#
+################################################################################
+
+OPUS_VERSION = 1.3.1
+OPUS_SITE = https://downloads.xiph.org/releases/opus
+OPUS_LICENSE = BSD-3-Clause
+OPUS_LICENSE_FILES = COPYING
+OPUS_INSTALL_STAGING = YES
+
+OPUS_CFLAGS = $(TARGET_CFLAGS)
+
+ifeq ($(BR2_TOOLCHAIN_HAS_GCC_BUG_85180),y)
+OPUS_CFLAGS += -O0
+endif
+
+OPUS_CONF_ENV = CFLAGS="$(OPUS_CFLAGS)"
+
+ifeq ($(BR2_PACKAGE_OPUS_FIXED_POINT),y)
+OPUS_CONF_OPTS += --enable-fixed-point
+endif
+
+# When we're on ARM, but we don't have ARM instructions (only
+# Thumb-2), disable the usage of assembly as it is not Thumb-ready.
+ifeq ($(BR2_arm)$(BR2_armeb):$(BR2_ARM_CPU_HAS_ARM),y:)
+OPUS_CONF_OPTS += --disable-asm
+endif
+
+$(eval $(autotools-package))