] target/ppc: Add E500 L2CSR0 write helper
=== TEST SCRIPT BEGIN ===
#!/bin/bash
git rev-parse base > /dev/null || exit 0
git config --local diff.renamelimit 0
git config --local diff.renames True
git config --local diff.algorithm histogram
./scripts/checkpatch.pl --mailback base..
=== TEST SCRIPT
From: Bin Meng
Per EREF 2.0 [1] chapter 3.11.2:
The following bits in L2CSR0 (exists in the e500mc/e5500/e6500 core):
- L2FI (L2 cache flash invalidate)
- L2FL (L2 cache flush)
- L2LFC (L2 cache lock flash clear)
when set, a cache operation is initiated by hardware, and these bits
will be cl
