On 3/7/26 09:43, Jamin Lin wrote:
Create the USB Device Controller (UDC) at 0x1e6a2000 on the AST2600 SoC:
map its registers and connect its interrupt.
The gadget USB device is not created by the SoC. It is a separate,
user-creatable "aspeed.udc-gadget" USB device that the user plugs onto a
USB host controller's bus; it finds its controller through the "udc"
link property, e.g.
-device aspeed.udc-gadget,udc=/machine/soc/udc
Signed-off-by: Jamin Lin <[email protected]>
---
hw/arm/aspeed_ast2600.c | 13 +++++++++++++
include/hw/arm/aspeed_soc.h | 2 ++
2 files changed, 15 insertions(+)
diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c
index d1f18e471a..7d97f10448 100644
--- a/hw/arm/aspeed_ast2600.c
+++ b/hw/arm/aspeed_ast2600.c
@@ -32,6 +32,7 @@ static const hwaddr aspeed_soc_ast2600_memmap[] = {
[ASPEED_DEV_SPI1] = 0x1E630000,
[ASPEED_DEV_SPI2] = 0x1E631000,
[ASPEED_DEV_EHCI1] = 0x1E6A1000,
+ [ASPEED_DEV_UDC] = 0x1E6A2000,
[ASPEED_DEV_EHCI2] = 0x1E6A3000,
[ASPEED_DEV_MII1] = 0x1E650000,
[ASPEED_DEV_MII2] = 0x1E650008,
@@ -113,6 +114,7 @@ static const int aspeed_soc_ast2600_irqmap[] = {
[ASPEED_DEV_SDHCI] = 43,
[ASPEED_DEV_EHCI1] = 5,
[ASPEED_DEV_EHCI2] = 9,
+ [ASPEED_DEV_UDC] = 9,
[ASPEED_DEV_EMMC] = 15,
[ASPEED_DEV_GPIO] = 40,
[ASPEED_DEV_GPIO_1_8V] = 11,
@@ -214,6 +216,8 @@ static void aspeed_soc_ast2600_init(Object *obj)
TYPE_PLATFORM_EHCI);
}
+ object_initialize_child(obj, "udc", &a->udc, TYPE_ASPEED_UDC);
+
snprintf(typename, sizeof(typename), "aspeed.sdmc-%s", socname);
object_initialize_child(obj, "sdmc", &s->sdmc, typename);
object_property_add_alias(obj, "ram-size", OBJECT(&s->sdmc),
@@ -573,6 +577,15 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev,
Error **errp)
ASPEED_DEV_EHCI1 + i));
}
+ /* UDC - USB 2.0 Device Controller */
+ if (!sysbus_realize(SYS_BUS_DEVICE(&a->udc), errp)) {
+ return;
+ }
+ aspeed_mmio_map(s->memory, SYS_BUS_DEVICE(&a->udc), 0,
+ sc->memmap[ASPEED_DEV_UDC]);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&a->udc), 0,
+ aspeed_soc_ast2600_get_irq(s, ASPEED_DEV_UDC));
Do we need to mux this IRQ line?
/* SDMC - SDRAM Memory Controller */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->sdmc), errp)) {
return;
diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
index 3aac144cd4..74fd83e957 100644
--- a/include/hw/arm/aspeed_soc.h
+++ b/include/hw/arm/aspeed_soc.h
@@ -36,6 +36,7 @@
#include "hw/gpio/aspeed_sgpio.h"
#include "hw/sd/aspeed_sdhci.h"
#include "hw/usb/hcd-ehci.h"
+#include "hw/usb/aspeed-udc.h"
#include "qom/object.h"
#include "hw/misc/aspeed_lpc.h"
#include "hw/misc/unimp.h"
@@ -138,6 +139,7 @@ struct Aspeed2600SoCState {
A15MPPrivState a7mpcore;
ARMCPU cpu[ASPEED_CPUS_NUM]; /* XXX belong to a7mpcore */
+ AspeedUDCState udc;
};
#define TYPE_ASPEED2600_SOC "aspeed2600-soc"
