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[rdc] allow 1MB extra space for JFFS and other enhancements (#7706)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22690 3c298f89-4303-0410-b956-a3cf2f4a3e73
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@ -29,8 +29,7 @@ define Image/Build/sitecom
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endef
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define Image/Build/bifferboard
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$(TOPDIR)/target/linux/rdc/image/mkimg_bifferboard.py $(KDIR)/bzImage $(KDIR)/root.$(1) $(KDIR)/tmp.img
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$(CP) $(KDIR)/tmp.img $(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2).img
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$(TOPDIR)/target/linux/rdc/image/mkimg_bifferboard.py $(KDIR)/bzImage $(KDIR)/root.$(1) $(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2).img
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endef
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define Image/Build/Initramfs
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@ -1,21 +1,31 @@
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#!/usr/bin/env python
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"""
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Create firmware for 8MB Bifferboards
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Firmware does not include the config blocks
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Firmware starts just after config
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Create firmware for 4/8MB Bifferboards, suitable for uploading using
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either bb_upload8.py or bb_eth_upload8.py
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"""
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import struct, sys
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kernel_extent = 0x200000
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config = 0x6000
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# Increase the kmax value if the script gives errors about the kernel being
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# too large. You need to set the Biffboot kmax value to the same value you
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# use here.
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kmax = 0x10
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# No need to change this for 4MB devices, it's only used to tell you if
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# the firmware is too large!
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flash_size = 0x800000
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# This is always the same, for 1MB, 4MB and 8MB devices
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config_extent = 0x6000
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kernel_extent = kmax * 0x10000
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if __name__ == "__main__":
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if len(sys.argv) != 4:
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print "usage: mkimg_bifferboard.py <kernel> <64k JFFS> <output file>"
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sys.exit(0)
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print "usage: mkimg_bifferboard.py <kernel> <rootfs> <output file>"
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sys.exit(-1)
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bzimage = sys.argv[1]
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rootfs = sys.argv[2]
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@ -23,17 +33,17 @@ if __name__ == "__main__":
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# Kernel first
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fw = file(bzimage).read()
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if len(fw) > (kernel_extent - config):
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if len(fw) > (kernel_extent - config_extent):
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raise IOError("Kernel too large")
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# Pad up to 0x200000
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while len(fw) < (kernel_extent - config):
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# Pad up to end of kernel partition
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while len(fw) < (kernel_extent - config_extent):
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fw += "\xff"
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fw += file(rootfs).read()
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# Check length of total
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if len(fw) > (0x800000 - 0x10000 - 0x6000):
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if len(fw) > (flash_size - 0x10000 - config_extent):
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raise IOError("Rootfs too large")
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file(target,"wb").write(fw)
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@ -7,5 +7,7 @@
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define Profile/bifferboard
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NAME:=Bifferboard
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PACKAGES:=kmod-usb-core kmod-usb-ohci kmod-usb2 \
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kmod-usb-storage kmod-scsi-core kmod-fs-ext3
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endef
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$(eval $(call Profile,bifferboard))
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