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XCI-SX1 SDK / SDK Technical Manual
2 Environment
This chapter explains kernels, programs, settings and so on.
The contents of this chapter have been applied to SDK.
2.1 Patches to kernel
Before kernel compilation, patches are first applied to the kernel. The
following sections lists the patches applied to the kernel.
Note: All patches have already been applied to /usr/src/linux on
SDK. The patch files are stored on
/buildtree/src/kernel/patches.
2.1.1 BigPhysArea Patch
Applying this patch allows the user to allocate a large area of contiguous
memory during boot up time which can be allocated or deallocated by
the kernel driver that needs it.
BigPhysArea
Patch Application:
cd /usr/src/linux
patch –p1 < [source]/bigphysarea.diff
Where:
[source] – path where the exploded patch is
located
2.1.2 Network Driver Patch
The network driver has to be patched to enable a more stable Ethernet
device driver for the target hardware (RTL8100C).
Network Driver
Upgrade
Patch Application:
cp 8139too.c
/usr/src/linux/drivers/net/
NOTE:
This command must overwrite the existing
8139too.c in the MVL3.0 kernel tree.
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