On 5/29/26 08:42, Jamin Lin wrote:
Introduce PECI support for the AST1040 SoC model.
This change adds the PECI MMIO region and IRQ mapping,
initializes the PECI device instance, and realizes the
controller during SoC initialization.
The PECI controller is mapped at 0x74C1F000 and connected
to IRQ 164.
Signed-off-by: Jamin Lin <[email protected]>
---
hw/arm/aspeed_ast1040.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/hw/arm/aspeed_ast1040.c b/hw/arm/aspeed_ast1040.c
index b736e690e5..9ae0a0e7a4 100644
--- a/hw/arm/aspeed_ast1040.c
+++ b/hw/arm/aspeed_ast1040.c
@@ -31,6 +31,7 @@ static const hwaddr aspeed_soc_ast1040_memmap[] = {
[ASPEED_DEV_SGPIOM0] = 0x74C0C000,
[ASPEED_DEV_SGPIOM1] = 0x74C0D000,
[ASPEED_DEV_I2C] = 0x74C0F000,
+ [ASPEED_DEV_PECI] = 0x74C1F000,
[ASPEED_DEV_I3C] = 0x74C20000,
[ASPEED_DEV_UART0] = 0x74C33000,
[ASPEED_DEV_UART1] = 0x74C33100,
@@ -76,6 +77,7 @@ static const int aspeed_soc_ast1040_irqmap[] = {
[ASPEED_DEV_UART11] = 146,
[ASPEED_DEV_UART12] = 147,
[ASPEED_DEV_JTAG0] = 162,
+ [ASPEED_DEV_PECI] = 164,
};
static qemu_irq aspeed_soc_ast1040_get_irq(AspeedSoCState *s, int dev)
@@ -108,6 +110,7 @@ static void aspeed_soc_ast1040_init(Object *obj)
}
object_initialize_child(obj, "adc", &s->adc, TYPE_ASPEED_2700_ADC);
+ object_initialize_child(obj, "peci", &s->peci, TYPE_ASPEED_PECI);
object_initialize_child(obj, "pwm", &s->pwm, TYPE_UNIMPLEMENTED_DEVICE);
object_initialize_child(obj, "espi", &s->espi, TYPE_UNIMPLEMENTED_DEVICE);
@@ -199,6 +202,15 @@ static void aspeed_soc_ast1040_realize(DeviceState
*dev_soc, Error **errp)
sysbus_connect_irq(SYS_BUS_DEVICE(&s->adc), 0,
aspeed_soc_ast1040_get_irq(s, ASPEED_DEV_ADC));
+ /* PECI */
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->peci), errp)) {
+ return;
+ }
+ aspeed_mmio_map(s->memory, SYS_BUS_DEVICE(&s->peci), 0,
+ sc->memmap[ASPEED_DEV_PECI]);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->peci), 0,
+ aspeed_soc_ast1040_get_irq(s, ASPEED_DEV_PECI));
+
/* Unimplemented peripherals */
aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&s->pwm),
"aspeed.pwm",
Reviewed-by: Cédric Le Goater <[email protected]>
Thanks,
C.
