[PATCH 3/3] arm: allwinner: Wire up USB EHCI

[Guenter Roeck <linux@roeck-us.net>]

Initialize EHCI controllers on Allwinner A10. With this patch applied,
USB EHCI ports are discovered when booting the cubieboard machine with
a recent Linux kernel.

ehci-platform 1c14000.usb: EHCI Host Controller
ehci-platform 1c14000.usb: new USB bus registered, assigned bus number 1
ehci-platform 1c14000.usb: irq 26, io mem 0x01c14000
ehci-platform 1c14000.usb: USB 2.0 started, EHCI 1.00
ehci-platform 1c1c000.usb: EHCI Host Controller
ehci-platform 1c1c000.usb: new USB bus registered, assigned bus number 2
ehci-platform 1c1c000.usb: irq 31, io mem 0x01c1c000
ehci-platform 1c1c000.usb: USB 2.0 started, EHCI 1.00

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 hw/arm/allwinner-a10.c         | 17 +++++++++++++++++
 include/hw/arm/allwinner-a10.h |  2 ++
 2 files changed, 19 insertions(+)

diff --git a/hw/arm/allwinner-a10.c b/hw/arm/allwinner-a10.c
index 818145428c..f8b963b5c3 100644
--- a/hw/arm/allwinner-a10.c
+++ b/hw/arm/allwinner-a10.c
@@ -32,6 +32,7 @@
 #define AW_A10_PIT_REG_BASE     0x01c20c00
 #define AW_A10_UART0_REG_BASE   0x01c28000
 #define AW_A10_EMAC_BASE        0x01c0b000
+#define AW_A10_EHCI_BASE        0x01c14000
 #define AW_A10_OHCI_BASE        0x01c14400
 #define AW_A10_SATA_BASE        0x01c18000
 
@@ -64,6 +65,10 @@ static void aw_a10_init(Object *obj)
             sysbus_init_child_obj(obj, "ohci[*]", OBJECT(&s->ohci[i]),
                                   sizeof(s->ohci[i]), TYPE_SYSBUS_OHCI);
         }
+        for (i = 0; i < ARRAY_SIZE(s->ehci); i++) {
+            sysbus_init_child_obj(obj, "ehci[*]", OBJECT(&s->ehci[i]),
+                                  sizeof(s->ehci[i]), TYPE_PLATFORM_EHCI);
+        }
     }
 }
 
@@ -162,6 +167,18 @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
             sysbus_connect_irq(SYS_BUS_DEVICE(&s->ohci[i]), 0,
                                qdev_get_gpio_in(dev, 64 + i));
         }
+        for (i = 0; i < ARRAY_SIZE(s->ehci); i++) {
+            object_property_set_bool(OBJECT(&s->ehci[i]), true, "realized",
+                                     &err);
+            if (err) {
+                error_propagate(errp, err);
+                return;
+            }
+            sysbus_mmio_map(SYS_BUS_DEVICE(&s->ehci[i]), 0,
+                            AW_A10_EHCI_BASE + i * 0x8000);
+            sysbus_connect_irq(SYS_BUS_DEVICE(&s->ehci[i]), 0,
+                               qdev_get_gpio_in(dev, 39 + i));
+        }
     }
 }
 
diff --git a/include/hw/arm/allwinner-a10.h b/include/hw/arm/allwinner-a10.h
index 4864adbec3..17e1ee92e2 100644
--- a/include/hw/arm/allwinner-a10.h
+++ b/include/hw/arm/allwinner-a10.h
@@ -10,6 +10,7 @@
 #include "hw/net/allwinner_emac.h"
 #include "hw/ide/ahci.h"
 #include "hw/usb/hcd-ohci.h"
+#include "hw/usb/hcd-ehci.h"
 
 #include "target/arm/cpu.h"
 
@@ -31,6 +32,7 @@ typedef struct AwA10State {
     AllwinnerAHCIState sata;
     MemoryRegion sram_a;
     OHCISysBusState ohci[2];
+    EHCISysBusState ehci[2];
 } AwA10State;
 
 #endif
-- 
2.17.1