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hw/arm/aspeed_ast27x0.c Separate HW Strap Registers for SCU and SCUIO

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There is one hw-strap1 register in the SCU (CPU DIE) and another hw-strap1
register in the SCUIO (IO DIE). The values of these two registers should not be
the same. To reuse the current design of hw-strap, hw-strap1 is assigned to the
SCU and sets the value in the SCU hw-strap1 register, while hw-strap2 is
assigned to the SCUIO and sets the value in the SCUIO hw-strap1 register.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Tested-by: Nabih Estefan <nabihestefan@google.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250304064710.2128993-6-jamin_lin@aspeedtech.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Jamin Lin 2025-03-04 14:47:07 +08:00 committed by Cédric Le Goater
parent 720e850f83
commit b741ab395b
1 changed files with 9 additions and 2 deletions
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11
hw/arm/aspeed_ast27x0.c
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@ -333,14 +333,21 @@ static void aspeed_soc_ast2700_init(Object *obj)
sc->silicon_rev);
object_property_add_alias(obj, "hw-strap1", OBJECT(&s->scu),
"hw-strap1");
object_property_add_alias(obj, "hw-strap2", OBJECT(&s->scu),
"hw-strap2");
object_property_add_alias(obj, "hw-prot-key", OBJECT(&s->scu),
"hw-prot-key");
object_initialize_child(obj, "scuio", &s->scuio, TYPE_ASPEED_2700_SCUIO);
qdev_prop_set_uint32(DEVICE(&s->scuio), "silicon-rev",
sc->silicon_rev);
/*
* There is one hw-strap1 register in the SCU (CPU DIE) and another
* hw-strap1 register in the SCUIO (IO DIE). To reuse the current design
* of hw-strap, hw-strap1 is assigned to the SCU and sets the value in the
* SCU hw-strap1 register, while hw-strap2 is assigned to the SCUIO and
* sets the value in the SCUIO hw-strap1 register.
*/
object_property_add_alias(obj, "hw-strap2", OBJECT(&s->scuio),
"hw-strap1");
snprintf(typename, sizeof(typename), "aspeed.fmc-%s", socname);
object_initialize_child(obj, "fmc", &s->fmc, typename);