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| author | Cédric Le Goater <clg@kaod.org> | 2019-10-28 08:00:27 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-12-17 10:39:47 +1100 |
| commit | ca661fae81d3b36b72c316a63165d9318dbd2439 (patch) | |
| tree | 5171d2957f99f67c48132c71de30eff9d7ace561 /hw/ppc/pnv_lpc.c | |
| parent | ed8da05cdb18a32a8a41165d5b7b367bc05fdab0 (diff) | |
| download | qemu-ca661fae81d3b36b72c316a63165d9318dbd2439.zip qemu-ca661fae81d3b36b72c316a63165d9318dbd2439.tar.gz qemu-ca661fae81d3b36b72c316a63165d9318dbd2439.tar.bz2 | |
ppc/pnv: Add HIOMAP commands
This activates HIOMAP support on the QEMU PowerNV machine. The PnvPnor
model is used to access the flash contents. The model simply maps the
contents at a fix offset and enables or disables the mapping.
HIOMAP Protocol description :
https://github.com/openbmc/hiomapd/blob/master/Documentation/protocol.md
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191028070027.22752-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc/pnv_lpc.c')
| -rw-r--r-- | hw/ppc/pnv_lpc.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/hw/ppc/pnv_lpc.c b/hw/ppc/pnv_lpc.c index c5a85c3..dd5374c 100644 --- a/hw/ppc/pnv_lpc.c +++ b/hw/ppc/pnv_lpc.c @@ -810,6 +810,7 @@ ISABus *pnv_lpc_isa_create(PnvLpcController *lpc, bool use_cpld, Error **errp) ISABus *isa_bus; qemu_irq *irqs; qemu_irq_handler handler; + PnvMachineState *pnv = PNV_MACHINE(qdev_get_machine()); /* let isa_bus_new() create its own bridge on SysBus otherwise * devices speficied on the command line won't find the bus and @@ -834,5 +835,17 @@ ISABus *pnv_lpc_isa_create(PnvLpcController *lpc, bool use_cpld, Error **errp) irqs = qemu_allocate_irqs(handler, lpc, ISA_NUM_IRQS); isa_bus_irqs(isa_bus, irqs); + + /* + * TODO: Map PNOR on the LPC FW address space on demand ? + */ + memory_region_add_subregion(&lpc->isa_fw, PNOR_SPI_OFFSET, + &pnv->pnor->mmio); + /* + * Start disabled. The HIOMAP protocol will activate the mapping + * with HIOMAP_C_CREATE_WRITE_WINDOW + */ + memory_region_set_enabled(&pnv->pnor->mmio, false); + return isa_bus; } |