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hw/intc/aspeed: Support setting different memory size

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According to the AST2700 datasheet, the INTC(CPU DIE) controller has 16KB
(0x4000) of register space, and the INTCIO (I/O DIE) controller has 1KB (0x400)
of register space.

Introduced a new class attribute "mem_size" to set different memory sizes for
the INTC models in AST2700.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250307035945.3698802-2-jamin_lin@aspeedtech.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Jamin Lin 2025-03-07 11:59:10 +08:00 • committed by Cédric Le Goater
parent 8dd163f915
commit c5728c3488
2 changed files with 11 additions and 1 deletions
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9
hw/intc/aspeed_intc.c
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@ -302,10 +302,16 @@ static void aspeed_intc_realize(DeviceState *dev, Error **errp)
AspeedINTCClass *aic = ASPEED_INTC_GET_CLASS(s);
int i;
memory_region_init(&s->iomem_container, OBJECT(s),
TYPE_ASPEED_INTC ".container", aic->mem_size);
sysbus_init_mmio(sbd, &s->iomem_container);
memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_intc_ops, s,
TYPE_ASPEED_INTC ".regs", ASPEED_INTC_NR_REGS << 2);
sysbus_init_mmio(sbd, &s->iomem);
memory_region_add_subregion(&s->iomem_container, 0x0, &s->iomem);
qdev_init_gpio_in(dev, aspeed_intc_set_irq, aic->num_ints);
for (i = 0; i < aic->num_ints; i++) {
@ -344,6 +350,7 @@ static void aspeed_2700_intc_class_init(ObjectClass *klass, void *data)
dc->desc = "ASPEED 2700 INTC Controller";
aic->num_lines = 32;
aic->num_ints = 9;
aic->mem_size = 0x4000;
}
static const TypeInfo aspeed_2700_intc_info = {