hw/arm/allwinner-h3: add USB host controller

The Allwinner H3 System on Chip contains multiple USB 2.0 bus
connections which provide software access using the Enhanced
Host Controller Interface (EHCI) and Open Host Controller
Interface (OHCI) interfaces. This commit adds support for
both interfaces in the Allwinner H3 System on Chip.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200311221854.30370-5-nieklinnenbank@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

5 files changed, 72 insertions, 0 deletions

diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index fcdc651..f6422d5 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -304,6 +304,8 @@ config ALLWINNER_H3
     select ARM_TIMER
     select ARM_GIC
     select UNIMP
+    select USB_OHCI
+    select USB_EHCI_SYSBUS
 
 config RASPI
     bool
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index 1fff3c3..c205f06 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -28,6 +28,7 @@
 #include "hw/sysbus.h"
 #include "hw/char/serial.h"
 #include "hw/misc/unimp.h"
+#include "hw/usb/hcd-ehci.h"
 #include "sysemu/sysemu.h"
 #include "hw/arm/allwinner-h3.h"
 
@@ -36,6 +37,14 @@ const hwaddr allwinner_h3_memmap[] = {
     [AW_H3_SRAM_A1]    = 0x00000000,
     [AW_H3_SRAM_A2]    = 0x00044000,
     [AW_H3_SRAM_C]     = 0x00010000,
+    [AW_H3_EHCI0]      = 0x01c1a000,
+    [AW_H3_OHCI0]      = 0x01c1a400,
+    [AW_H3_EHCI1]      = 0x01c1b000,
+    [AW_H3_OHCI1]      = 0x01c1b400,
+    [AW_H3_EHCI2]      = 0x01c1c000,
+    [AW_H3_OHCI2]      = 0x01c1c400,
+    [AW_H3_EHCI3]      = 0x01c1d000,
+    [AW_H3_OHCI3]      = 0x01c1d400,
     [AW_H3_CCU]        = 0x01c20000,
     [AW_H3_PIT]        = 0x01c20c00,
     [AW_H3_UART0]      = 0x01c28000,
@@ -144,6 +153,14 @@ enum {
     AW_H3_GIC_SPI_UART3     =  3,
     AW_H3_GIC_SPI_TIMER0    = 18,
     AW_H3_GIC_SPI_TIMER1    = 19,
+    AW_H3_GIC_SPI_EHCI0     = 72,
+    AW_H3_GIC_SPI_OHCI0     = 73,
+    AW_H3_GIC_SPI_EHCI1     = 74,
+    AW_H3_GIC_SPI_OHCI1     = 75,
+    AW_H3_GIC_SPI_EHCI2     = 76,
+    AW_H3_GIC_SPI_OHCI2     = 77,
+    AW_H3_GIC_SPI_EHCI3     = 78,
+    AW_H3_GIC_SPI_OHCI3     = 79,
 };
 
 /* Allwinner H3 general constants */
@@ -284,6 +301,33 @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
     qdev_init_nofail(DEVICE(&s->ccu));
     sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccu), 0, s->memmap[AW_H3_CCU]);
 
+    /* Universal Serial Bus */
+    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI0],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_EHCI0));
+    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI1],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_EHCI1));
+    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI2],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_EHCI2));
+    sysbus_create_simple(TYPE_AW_H3_EHCI, s->memmap[AW_H3_EHCI3],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_EHCI3));
+
+    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI0],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_OHCI0));
+    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI1],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_OHCI1));
+    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI2],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_OHCI2));
+    sysbus_create_simple("sysbus-ohci", s->memmap[AW_H3_OHCI3],
+                         qdev_get_gpio_in(DEVICE(&s->gic),
+                                          AW_H3_GIC_SPI_OHCI3));
+
     /* UART0. For future clocktree API: All UARTS are connected to APB2_CLK. */
     serial_mm_init(get_system_memory(), s->memmap[AW_H3_UART0], 2,
                    qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART0),
diff --git a/hw/usb/hcd-ehci-sysbus.c b/hw/usb/hcd-ehci-sysbus.c
index 5b7991c..3730736 100644
--- a/hw/usb/hcd-ehci-sysbus.c
+++ b/hw/usb/hcd-ehci-sysbus.c
@@ -131,6 +131,22 @@ static const TypeInfo ehci_exynos4210_type_info = {
     .class_init    = ehci_exynos4210_class_init,
 };
 
+static void ehci_aw_h3_class_init(ObjectClass *oc, void *data)
+{
+    SysBusEHCIClass *sec = SYS_BUS_EHCI_CLASS(oc);
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    sec->capsbase = 0x0;
+    sec->opregbase = 0x10;
+    set_bit(DEVICE_CATEGORY_USB, dc->categories);
+}
+
+static const TypeInfo ehci_aw_h3_type_info = {
+    .name          = TYPE_AW_H3_EHCI,
+    .parent        = TYPE_SYS_BUS_EHCI,
+    .class_init    = ehci_aw_h3_class_init,
+};
+
 static void ehci_tegra2_class_init(ObjectClass *oc, void *data)
 {
     SysBusEHCIClass *sec = SYS_BUS_EHCI_CLASS(oc);
@@ -252,6 +268,7 @@ static void ehci_sysbus_register_types(void)
     type_register_static(&ehci_type_info);
     type_register_static(&ehci_platform_type_info);
     type_register_static(&ehci_exynos4210_type_info);
+    type_register_static(&ehci_aw_h3_type_info);
     type_register_static(&ehci_tegra2_type_info);
     type_register_static(&ehci_ppc4xx_type_info);
     type_register_static(&ehci_fusbh200_type_info);
diff --git a/hw/usb/hcd-ehci.h b/hw/usb/hcd-ehci.h
index 0298238..edb5931 100644
--- a/hw/usb/hcd-ehci.h
+++ b/hw/usb/hcd-ehci.h
@@ -342,6 +342,7 @@ typedef struct EHCIPCIState {
 #define TYPE_SYS_BUS_EHCI "sysbus-ehci-usb"
 #define TYPE_PLATFORM_EHCI "platform-ehci-usb"
 #define TYPE_EXYNOS4210_EHCI "exynos4210-ehci-usb"
+#define TYPE_AW_H3_EHCI "aw-h3-ehci-usb"
 #define TYPE_TEGRA2_EHCI "tegra2-ehci-usb"
 #define TYPE_PPC4xx_EHCI "ppc4xx-ehci-usb"
 #define TYPE_FUSBH200_EHCI "fusbh200-ehci-usb"
diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
index abdc208..4f4dcbc 100644
--- a/include/hw/arm/allwinner-h3.h
+++ b/include/hw/arm/allwinner-h3.h
@@ -56,6 +56,14 @@ enum {
     AW_H3_SRAM_A1,
     AW_H3_SRAM_A2,
     AW_H3_SRAM_C,
+    AW_H3_EHCI0,
+    AW_H3_OHCI0,
+    AW_H3_EHCI1,
+    AW_H3_OHCI1,
+    AW_H3_EHCI2,
+    AW_H3_OHCI2,
+    AW_H3_EHCI3,
+    AW_H3_OHCI3,
     AW_H3_CCU,
     AW_H3_PIT,
     AW_H3_UART0,