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ppc/pnv: add initial IPMI sensors for the BMC simulator

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Skiboot, the firmware for the PowerNV platform, expects the BMC to
provide some specific IPMI sensors. These sensors are exposed in the
device tree and their values are updated by the firmware at boot time.

Sensors of interest are :

	"FW Boot Progress"
	"Boot Count"

As such a device is defined on the command line, we can only detect
its presence at reset time.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2017-04-11 17:30:05 +02:00 • committed by David Gibson
parent 04f6c8b2c0
commit aeaef83dab
4 changed files with 112 additions and 1 deletions
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9
include/hw/ppc/pnv.h
View file

@ -118,6 +118,8 @@ typedef struct PnvChipClass {
#define POWERNV_MACHINE(obj) \
OBJECT_CHECK(PnvMachineState, (obj), TYPE_POWERNV_MACHINE)
typedef struct IPMIBmc IPMIBmc;
typedef struct PnvMachineState {
/*< private >*/
MachineState parent_obj;
@ -130,11 +132,18 @@ typedef struct PnvMachineState {
ISABus *isa_bus;
uint32_t cpld_irqstate;
IPMIBmc *bmc;
} PnvMachineState;
#define PNV_FDT_ADDR 0x01000000
#define PNV_TIMEBASE_FREQ 512000000ULL
/*
* BMC helpers
*/
void pnv_bmc_populate_sensors(IPMIBmc *bmc, void *fdt);
/*
* POWER8 MMIO base addresses
*/