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ppc/pnv: Connect PNV I2C controller to powernv10

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Wires up four I2C controller instances to the powernv10 chip
XSCOM address space.

Each controller instance is wired up to two I2C buses of
its own.  No other I2C devices are connected to the buses
at this time.

Signed-off-by: Glenn Miles <milesg@linux.vnet.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20231017221434.810363-1-milesg@linux.vnet.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Glenn Miles 2023-10-17 17:14:34 -05:00 • committed by Daniel Henrique Barboza
parent 5f06612154
commit 1ceda19c28
3 changed files with 36 additions and 0 deletions
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29
hw/ppc/pnv.c
View file

@ -1684,6 +1684,10 @@ static void pnv_chip_power10_instance_init(Object *obj)
object_initialize_child(obj, "pec[*]", &chip10->pecs[i],
TYPE_PNV_PHB5_PEC);
}
for (i = 0; i < pcc->i2c_num_engines; i++) {
object_initialize_child(obj, "i2c[*]", &chip10->i2c[i], TYPE_PNV_I2C);
}
}
static void pnv_chip_power10_quad_realize(Pnv10Chip *chip10, Error **errp)
@ -1742,6 +1746,7 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
PnvChip *chip = PNV_CHIP(dev);
Pnv10Chip *chip10 = PNV10_CHIP(dev);
Error *local_err = NULL;
int i;
/* XSCOM bridge is first */
pnv_xscom_init(chip, PNV10_XSCOM_SIZE, PNV10_XSCOM_BASE(chip));
@ -1847,6 +1852,28 @@ static void pnv_chip_power10_realize(DeviceState *dev, Error **errp)
error_propagate(errp, local_err);
return;
}
/*
* I2C
*/
for (i = 0; i < pcc->i2c_num_engines; i++) {
Object *obj = OBJECT(&chip10->i2c[i]);
object_property_set_int(obj, "engine", i + 1, &error_fatal);
object_property_set_int(obj, "num-busses", pcc->i2c_num_ports,
&error_fatal);
object_property_set_link(obj, "chip", OBJECT(chip), &error_abort);
if (!qdev_realize(DEVICE(obj), NULL, errp)) {
return;
}
pnv_xscom_add_subregion(chip, PNV10_XSCOM_I2CM_BASE +
chip10->i2c[i].engine * PNV10_XSCOM_I2CM_SIZE,
&chip10->i2c[i].xscom_regs);
qdev_connect_gpio_out(DEVICE(&chip10->i2c[i]), 0,
qdev_get_gpio_in(DEVICE(&chip10->psi),
PSIHB9_IRQ_SBE_I2C));
}
}
static uint32_t pnv_chip_power10_xscom_pcba(PnvChip *chip, uint64_t addr)
@ -1874,6 +1901,8 @@ static void pnv_chip_power10_class_init(ObjectClass *klass, void *data)
k->xscom_pcba = pnv_chip_power10_xscom_pcba;
dc->desc = "PowerNV Chip POWER10";
k->num_pecs = PNV10_CHIP_MAX_PEC;
k->i2c_num_engines = PNV10_CHIP_MAX_I2C;
k->i2c_num_ports = PNV10_CHIP_MAX_I2C_PORTS;
device_class_set_parent_realize(dc, pnv_chip_power10_realize,
&k->parent_realize);