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ppc/pnv: add a "ibm,opal/power-mgt" device tree node on POWER9

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Activate only stop0 and stop1 levels. We should not need more levels
when under QEMU.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190307223548.20516-15-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2019-03-07 23:35:47 +01:00 committed by David Gibson
parent bc56511668
commit e5694793ee
1 changed files with 15 additions and 0 deletions
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15
hw/ppc/pnv.c
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@ -438,6 +438,16 @@ static void pnv_dt_isa(PnvMachineState *pnv, void *fdt)
&args);
}
static void pnv_dt_power_mgt(void *fdt)
{
int off;
off = fdt_add_subnode(fdt, 0, "ibm,opal");
off = fdt_add_subnode(fdt, off, "power-mgt");
_FDT(fdt_setprop_cell(fdt, off, "ibm,enabled-stop-levels", 0xc0000000));
}
static void *pnv_dt_create(MachineState *machine)
{
const char plat_compat[] = "qemu,powernv\0ibm,powernv";
@ -493,6 +503,11 @@ static void *pnv_dt_create(MachineState *machine)
pnv_dt_bmc_sensors(pnv->bmc, fdt);
}
/* Create an extra node for power management on Power9 */
if (pnv_is_power9(pnv)) {
pnv_dt_power_mgt(fdt);
}
return fdt;
}