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plic: check for sifive compatible string

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The Linux dts for the HiFive Unleashed does not contain the usual
"riscv,plic0" compat string, but our PLIC driver is compatible.

MFC after:	1 week
This commit is contained in:
Mitchell Horne 2019-11-11 01:39:06 +00:00
parent 9a64005837
commit 6f1f29f65f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=354604
1 changed files with 2 additions and 1 deletions
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3
sys/riscv/riscv/plic.c
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@ -174,7 +174,8 @@ plic_probe(device_t dev)
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (!ofw_bus_is_compatible(dev, "riscv,plic0"))
if (!ofw_bus_is_compatible(dev, "riscv,plic0") &&
!ofw_bus_is_compatible(dev, "sifive,plic-1.0.0"))
return (ENXIO);
device_set_desc(dev, "RISC-V PLIC");