uio-pruss.rules

# vim: ft=udevrules

# apply this file only to pruss_uio devices and their children
# (unfortunately DRIVERS!="pruss_uio" doesn't work, hence this workaround)
DRIVERS=="pruss_uio",  GOTO="PRUSS"
GOTO="END"
LABEL="PRUSS"


# obtain pruss instance name:
#	1. check for device tree property
#	2. try to inherit from parent
#	3. default to "pruss"

ENV{PRUSS_INSTANCE}=="",  ENV{PRUSS_INSTANCE}="$attr{of_node/pruss-instance}"
ENV{PRUSS_INSTANCE}=="",  IMPORT{parent}="PRUSS_INSTANCE"
ENV{PRUSS_INSTANCE}=="",  ENV{PRUSS_INSTANCE}="pruss"


# create symlinks for the uio devices:
#	one for the memory/register spaces (any of the modules work for that)
#	one per irq that can be received by linux

SUBSYSTEM!="uio",  GOTO="END"

ATTR{name}=="pruss_evt0",  SYMLINK+="uio/$env{PRUSS_INSTANCE}/module"

ATTR{name}=="pruss_evt0",  SYMLINK+="uio/$env{PRUSS_INSTANCE}/irq2"
ATTR{name}=="pruss_evt1",  SYMLINK+="uio/$env{PRUSS_INSTANCE}/irq3"
ATTR{name}=="pruss_evt2",  SYMLINK+="uio/$env{PRUSS_INSTANCE}/irq4"
ATTR{name}=="pruss_evt3",  SYMLINK+="uio/$env{PRUSS_INSTANCE}/irq5"
ATTR{name}=="pruss_evt4",  SYMLINK+="uio/$env{PRUSS_INSTANCE}/irq6"
ATTR{name}=="pruss_evt5",  SYMLINK+="uio/$env{PRUSS_INSTANCE}/irq7"
ATTR{name}=="pruss_evt6",  SYMLINK+="uio/$env{PRUSS_INSTANCE}/irq8"
ATTR{name}=="pruss_evt7",  SYMLINK+="uio/$env{PRUSS_INSTANCE}/irq9"


LABEL="END"