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allow 1MB extra space for JFFS and other enhancements (#7706)

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SVN-Revision: 22690
This commit is contained in:
Florian Fainelli 2010-08-17 15:31:27 +00:00
parent 1d1b83fa4c
commit af0ecdebfd
3 changed files with 24 additions and 13 deletions
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3
target/linux/rdc/image/Makefile
View file

@ -29,8 +29,7 @@ define Image/Build/sitecom
endef
define Image/Build/bifferboard
$(TOPDIR)/target/linux/rdc/image/mkimg_bifferboard.py $(KDIR)/bzImage $(KDIR)/root.$(1) $(KDIR)/tmp.img
$(CP) $(KDIR)/tmp.img $(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2).img
$(TOPDIR)/target/linux/rdc/image/mkimg_bifferboard.py $(KDIR)/bzImage $(KDIR)/root.$(1) $(BIN_DIR)/$(IMG_PREFIX)-$(1)-$(2).img
endef
define Image/Build/Initramfs

32
target/linux/rdc/image/mkimg_bifferboard.py
View file

@ -1,21 +1,31 @@
#!/usr/bin/env python
"""
Create firmware for 8MB Bifferboards
Firmware does not include the config blocks
Firmware starts just after config
Create firmware for 4/8MB Bifferboards, suitable for uploading using
either bb_upload8.py or bb_eth_upload8.py
"""
import struct, sys
kernel_extent = 0x200000
config = 0x6000
# Increase the kmax value if the script gives errors about the kernel being
# too large. You need to set the Biffboot kmax value to the same value you
# use here.
kmax = 0x10
# No need to change this for 4MB devices, it's only used to tell you if
# the firmware is too large!
flash_size = 0x800000
# This is always the same, for 1MB, 4MB and 8MB devices
config_extent = 0x6000
kernel_extent = kmax * 0x10000
if __name__ == "__main__":
if len(sys.argv) != 4:
print "usage: mkimg_bifferboard.py <kernel> <64k JFFS> <output file>"
sys.exit(0)
print "usage: mkimg_bifferboard.py <kernel> <rootfs> <output file>"
sys.exit(-1)
bzimage = sys.argv[1]
rootfs = sys.argv[2]
@ -23,17 +33,17 @@ if __name__ == "__main__":
# Kernel first
fw = file(bzimage).read()
if len(fw) > (kernel_extent - config):
if len(fw) > (kernel_extent - config_extent):
raise IOError("Kernel too large")
# Pad up to 0x200000
while len(fw) < (kernel_extent - config):
# Pad up to end of kernel partition
while len(fw) < (kernel_extent - config_extent):
fw += "\xff"
fw += file(rootfs).read()
# Check length of total
if len(fw) > (0x800000 - 0x10000 - 0x6000):
if len(fw) > (flash_size - 0x10000 - config_extent):
raise IOError("Rootfs too large")
file(target,"wb").write(fw)

2
target/linux/rdc/profiles/bifferboard.mk
View file

@ -7,5 +7,7 @@
define Profile/bifferboard
NAME:=Bifferboard
PACKAGES:=kmod-usb-core kmod-usb-ohci kmod-usb2 \
kmod-usb-storage kmod-scsi-core kmod-fs-ext3
endef
$(eval $(call Profile,bifferboard))