add support 4g -- >ppp

hc

2023-11-24 2b26ab132d1b33b91c84c6d732456200e8c5ee77

add support 4g -- >ppp

 kernel/arch/arm64/configs/rockchip_linux_defconfig
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..
@@ -1657,8 +1657,17 @@
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 # CONFIG_VITESSE_PHY is not set
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 # CONFIG_XILINX_GMII2RGMII is not set
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 # CONFIG_MICREL_KS8995MA is not set
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-# CONFIG_PPP is not set
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+CONFIG_PPP=y
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+CONFIG_PPP_BSDCOMP=y
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+CONFIG_PPP_DEFLATE=y
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+CONFIG_PPP_FILTER=y
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+CONFIG_PPP_MPPE=m
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+CONFIG_PPP_MULTILINK=y
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+CONFIG_PPPOE=y
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+CONFIG_PPP_ASYNC=y
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+CONFIG_PPP_SYNC_TTY=y
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 # CONFIG_SLIP is not set
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+CONFIG_SLHC=y
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 CONFIG_USB_NET_DRIVERS=y
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 # CONFIG_USB_CATC is not set
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 # CONFIG_USB_KAWETH is not set
 mk-rootfs.sh
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..
@@ -17,7 +17,7 @@
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 # Create directories
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 mkdir ${MOUNTPOINT}
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-dd if=/dev/zero of=${ROOTFSIMAGE} bs=1M count=0 seek=4300
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+dd if=/dev/zero of=${ROOTFSIMAGE} bs=1M count=0 seek=1300
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 finish() {
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 	sudo umount ${MOUNTPOINT} || true