ANDROID: GKI: add support for Amlogic SoCs, everything as modules

Add build config, and kernel config fragment to build a GKI kernel for
Amlogic SoCs with *all* SoC-specific functionality built as modules.

Bug: 179406580
Change-Id: I76664649b00f968819f9c8fefd18656e0b519e79
Signed-off-by: Kevin Hilman <[email protected]>
(cherry picked from commit db7b42ae4d8de5d9616f88ebf831b2752d08b47b kernel/common android-mainline)
Signed-off-by: Greg Kroah-Hartman <[email protected]>

arch/arm64/configs/amlogic_gki.fragment

@@ -0,0 +1,132 @@
+#
+# Generic drivers/frameworks
+#
+CONFIG_COMMON_CLK_PWM=m
+CONFIG_REGULATOR_PWM=m
+CONFIG_PWRSEQ_EMMC=m
+CONFIG_PWRSEQ_SIMPLE=m
+CONFIG_USB_DWC2=m
+
+#
+# Networking
+#
+CONFIG_REALTEK_PHY=m
+CONFIG_STMMAC_ETH=m
+CONFIG_STMMAC_PLATFORM=m
+
+#
+# Amlogic
+#
+CONFIG_ARCH_MESON=y
+CONFIG_SERIAL_MESON=m
+CONFIG_SERIAL_MESON_CONSOLE=y
+
+#
+# Amlogic drivers as modules
+#
+
+# core
+CONFIG_MESON_SM=m
+CONFIG_RESET_MESON=m
+CONFIG_MESON_IRQ_GPIO=m
+
+# clocks
+CONFIG_COMMON_CLK_MESON_REGMAP=m
+CONFIG_COMMON_CLK_MESON_DUALDIV=m
+CONFIG_COMMON_CLK_MESON_MPLL=m
+CONFIG_COMMON_CLK_MESON_PHASE=m
+CONFIG_COMMON_CLK_MESON_PLL=m
+CONFIG_COMMON_CLK_MESON_SCLK_DIV=m
+CONFIG_COMMON_CLK_MESON_VID_PLL_DIV=m
+CONFIG_COMMON_CLK_MESON_AO_CLKC=m
+CONFIG_COMMON_CLK_MESON_EE_CLKC=m
+CONFIG_COMMON_CLK_MESON_CPU_DYNDIV=m
+CONFIG_COMMON_CLK_GXBB=m
+CONFIG_COMMON_CLK_AXG=m
+CONFIG_COMMON_CLK_G12A=m
+
+# PHY
+CONFIG_PHY_MESON8B_USB2=m
+CONFIG_PHY_MESON_GXL_USB2=m
+CONFIG_PHY_MESON_G12A_USB2=m
+CONFIG_PHY_MESON_G12A_USB3_PCIE=m
+CONFIG_PHY_MESON_AXG_PCIE=m
+CONFIG_PHY_MESON_AXG_MIPI_PCIE_ANALOG=m
+
+# peripherals
+CONFIG_I2C_MESON=m
+CONFIG_MMC_MESON_GX=m
+CONFIG_HW_RANDOM_MESON=m
+CONFIG_USB_DWC3_MESON_G12A=m
+CONFIG_MESON_SARADC=m
+CONFIG_SPI_MESON_SPICC=m
+CONFIG_SPI_MESON_SPIFC=m
+CONFIG_PCI_MESON=m
+CONFIG_DWMAC_MESON=m
+CONFIG_MDIO_BUS_MUX_MESON_G12A=m
+CONFIG_MESON_GXL_PHY=m
+CONFIG_PINCTRL_MESON=m
+CONFIG_PINCTRL_MESON_GXBB=m
+CONFIG_PINCTRL_MESON_GXL=m
+CONFIG_PINCTRL_MESON_AXG=m
+CONFIG_PINCTRL_MESON_AXG_PMX=m
+CONFIG_PINCTRL_MESON_G12A=m
+CONFIG_MESON_GXBB_WATCHDOG=m
+CONFIG_MESON_WATCHDOG=m
+CONFIG_MTD_NAND_MESON=m
+CONFIG_PWM_MESON=m
+CONFIG_IR_MESON=m
+CONFIG_MESON_EFUSE=m
+CONFIG_MFD_KHADAS_MCU=m
+CONFIG_KHADAS_MCU_FAN_THERMAL=m
+CONFIG_AMLOGIC_THERMAL=m
+
+# sound
+CONFIG_SND_MESON_AXG_SOUND_CARD=m
+CONFIG_SND_MESON_GX_SOUND_CARD=m
+CONFIG_SND_MESON_G12A_TOHDMITX=m
+
+# display / video
+CONFIG_DRM_MESON=m
+CONFIG_DRM_MESON_DW_HDMI=m
+CONFIG_DRM_DW_HDMI=m
+CONFIG_DRM_DW_HDMI_AHB_AUDIO=m
+CONFIG_DRM_DW_HDMI_I2S_AUDIO=m
+CONFIG_DRM_DW_HDMI_CEC=m
+CONFIG_CEC_MESON_AO=m
+CONFIG_CEC_MESON_G12A_AO=m
+CONFIG_VIDEO_MESON_GE2D=m
+
+# SoC drivers
+CONFIG_MESON_CANVAS=m
+CONFIG_MESON_CLK_MEASURE=m
+CONFIG_MESON_GX_PM_DOMAINS=m
+CONFIG_MESON_EE_PM_DOMAINS=m
+CONFIG_MESON_SECURE_PM_DOMAINS=m
+
+#
+# Amlogic drivers disable
+#
+
+# 32-bit SoC drivers
+CONFIG_MESON6_TIMER=n
+CONFIG_MESON_MX_SOCINFO=n
+
+# only needed by DRM on S805X
+CONFIG_MESON_GX_SOCINFO=n
+
+#
+# Debug / Testing
+#
+
+# devtmpfs needed for buildroot/udev module loading, serial console
+#CONFIG_DEVTMPFS=y
+#CONFIG_DEVTMPFS_MOUNT=y
+
+# debug/testing with FB console
+#CONFIG_DRM_KMS_FB_HELPER=y
+#CONFIG_DRM_FBDEV_EMULATION=y
+#CONFIG_FB=y
+#CONFIG_VT=y
+#CONFIG_FRAMEBUFFER_CONSOLE=y
+#CONFIG_LOGO=y

build.config.amlogic

@@ -0,0 +1,35 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki.aarch64
+
+DEFCONFIG=amlogic_gki_defconfig
+PRE_DEFCONFIG_CMDS="KCONFIG_CONFIG=${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/${DEFCONFIG} ${ROOT_DIR}/${KERNEL_DIR}/scripts/kconfig/merge_config.sh -m -r ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/gki_defconfig ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/amlogic_gki.fragment"
+POST_DEFCONFIG_CMDS="rm ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/${DEFCONFIG}"
+
+# needed for DT overlay support
+DTC_FLAGS="-@"
+
+MAKE_GOALS="${MAKE_GOALS}
+amlogic/meson-g12a-sei510.dtb
+amlogic/meson-sm1-sei610.dtb
+amlogic/meson-sm1-khadas-vim3l.dtb
+amlogic/meson-g12b-a311d-khadas-vim3.dtb
+"
+
+FILES="${FILES}
+arch/arm64/boot/Image.lz4
+arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dtb
+arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dtb
+arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dtb
+arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dtb
+"
+
+#
+# NOTE: Using Image.lz4 in MAKE_GOALS does not work because
+#   kernel build passes legacy option (-l) to lz4 command
+#   and u-boot fails to decompress.  Instead, add custom
+#   command to lz4 compress same options as kernel, but
+#   without the -l.
+#
+EXTRA_CMDS="lz4_compress"
+function lz4_compress() {
+        lz4 -f -12 --favor-decSpeed ${OUT_DIR}/arch/arm64/boot/Image ${OUT_DIR}/arch/arm64/boot/Image.lz4
+}