hw/arm: Add EHCI/OHCI controllers to Allwinner R40 and Bananapi board

Allwinner R40 supports two USB host ports shared between a USB 2.0 EHCI
host controller and a USB 1.1 OHCI host controller. Add support for both
of them.

If machine USB support is not enabled, create unimplemented devices
for the USB memory ranges to avoid crashes when booting Linux.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240115182757.1095012-2-linux@roeck-us.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

2 files changed, 47 insertions, 2 deletions

diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index 218b454e97..4a2a5fca97 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -415,6 +415,8 @@ config ALLWINNER_R40
     select ARM_TIMER
     select ARM_GIC
     select UNIMP
+    select USB_OHCI
+    select USB_EHCI_SYSBUS
     select SD
 
 config RASPI
diff --git a/hw/arm/allwinner-r40.c b/hw/arm/allwinner-r40.c
index a0d367c60d..2e8943eff7 100644
--- a/hw/arm/allwinner-r40.c
+++ b/hw/arm/allwinner-r40.c
@@ -23,6 +23,7 @@
 #include "qemu/bswap.h"
 #include "qemu/module.h"
 #include "qemu/units.h"
+#include "hw/boards.h"
 #include "hw/qdev-core.h"
 #include "hw/sysbus.h"
 #include "hw/char/serial.h"
@@ -45,6 +46,10 @@ const hwaddr allwinner_r40_memmap[] = {
     [AW_R40_DEV_MMC1]       = 0x01c10000,
     [AW_R40_DEV_MMC2]       = 0x01c11000,
     [AW_R40_DEV_MMC3]       = 0x01c12000,
+    [AW_R40_DEV_EHCI1]      = 0x01c19000,
+    [AW_R40_DEV_OHCI1]      = 0x01c19400,
+    [AW_R40_DEV_EHCI2]      = 0x01c1c000,
+    [AW_R40_DEV_OHCI2]      = 0x01c1c400,
     [AW_R40_DEV_CCU]        = 0x01c20000,
     [AW_R40_DEV_PIT]        = 0x01c20c00,
     [AW_R40_DEV_UART0]      = 0x01c28000,
@@ -89,9 +94,9 @@ static struct AwR40Unimplemented r40_unimplemented[] = {
     { "crypto",     0x01c15000, 4 * KiB },
     { "spi2",       0x01c17000, 4 * KiB },
     { "sata",       0x01c18000, 4 * KiB },
-    { "usb1-host",  0x01c19000, 4 * KiB },
+    { "usb1-phy",   0x01c19800, 2 * KiB },
     { "sid",        0x01c1b000, 4 * KiB },
-    { "usb2-host",  0x01c1c000, 4 * KiB },
+    { "usb2-phy",   0x01c1c800, 2 * KiB },
     { "cs1",        0x01c1d000, 4 * KiB },
     { "spi3",       0x01c1f000, 4 * KiB },
     { "rtc",        0x01c20400, 1 * KiB },
@@ -181,6 +186,10 @@ enum {
     AW_R40_GIC_SPI_MMC2      = 34,
     AW_R40_GIC_SPI_MMC3      = 35,
     AW_R40_GIC_SPI_EMAC      = 55,
+    AW_R40_GIC_SPI_OHCI1     = 64,
+    AW_R40_GIC_SPI_OHCI2     = 65,
+    AW_R40_GIC_SPI_EHCI1     = 76,
+    AW_R40_GIC_SPI_EHCI2     = 78,
     AW_R40_GIC_SPI_GMAC      = 85,
 };
 
@@ -276,6 +285,13 @@ static void allwinner_r40_init(Object *obj)
                                 TYPE_AW_SDHOST_SUN50I_A64);
     }
 
+    for (size_t i = 0; i < AW_R40_NUM_USB; i++) {
+        object_initialize_child(obj, "ehci[*]", &s->ehci[i],
+                                TYPE_PLATFORM_EHCI);
+        object_initialize_child(obj, "ohci[*]", &s->ohci[i],
+                                TYPE_SYSBUS_OHCI);
+    }
+
     object_initialize_child(obj, "twi0", &s->i2c0, TYPE_AW_I2C_SUN6I);
 
     object_initialize_child(obj, "emac", &s->emac, TYPE_AW_EMAC);
@@ -407,6 +423,33 @@ static void allwinner_r40_realize(DeviceState *dev, Error **errp)
     sysbus_realize(SYS_BUS_DEVICE(&s->ccu), &error_fatal);
     sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccu), 0, s->memmap[AW_R40_DEV_CCU]);
 
+    /* USB */
+    for (size_t i = 0; i < AW_R40_NUM_USB; i++) {
+        g_autofree char *bus = g_strdup_printf("usb-bus.%zu", i);
+
+        object_property_set_bool(OBJECT(&s->ehci[i]), "companion-enable", true,
+                                 &error_fatal);
+        sysbus_realize(SYS_BUS_DEVICE(&s->ehci[i]), &error_fatal);
+        sysbus_mmio_map(SYS_BUS_DEVICE(&s->ehci[i]), 0,
+                        allwinner_r40_memmap[i ? AW_R40_DEV_EHCI2
+                                               : AW_R40_DEV_EHCI1]);
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->ehci[i]), 0,
+                           qdev_get_gpio_in(DEVICE(&s->gic),
+                                            i ? AW_R40_GIC_SPI_EHCI2
+                                              : AW_R40_GIC_SPI_EHCI1));
+
+        object_property_set_str(OBJECT(&s->ohci[i]), "masterbus", bus,
+                                &error_fatal);
+        sysbus_realize(SYS_BUS_DEVICE(&s->ohci[i]), &error_fatal);
+        sysbus_mmio_map(SYS_BUS_DEVICE(&s->ohci[i]), 0,
+                        allwinner_r40_memmap[i ? AW_R40_DEV_OHCI2
+                                               : AW_R40_DEV_OHCI1]);
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->ohci[i]), 0,
+                           qdev_get_gpio_in(DEVICE(&s->gic),
+                                            i ? AW_R40_GIC_SPI_OHCI2
+                                              : AW_R40_GIC_SPI_OHCI1));
+    }
+
     /* SD/MMC */
     for (int i = 0; i < AW_R40_NUM_MMCS; i++) {
         qemu_irq irq = qdev_get_gpio_in(DEVICE(&s->gic),