[PATCH 2/3] arm: allwinner: Wire up USB OHCI

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

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

ohci-platform 1c14400.usb: Generic Platform OHCI controller
ohci-platform 1c14400.usb: new USB bus registered, assigned bus number 3
ohci-platform 1c14400.usb: irq 27, io mem 0x01c14400
ohci-platform 1c1c400.usb: Generic Platform OHCI controller
ohci-platform 1c1c400.usb: new USB bus registered, assigned bus number 4
ohci-platform 1c1c400.usb: irq 32, io mem 0x01c1c400

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 hw/arm/allwinner-a10.c         | 30 ++++++++++++++++++++++++++++++
 include/hw/arm/allwinner-a10.h |  2 ++
 2 files changed, 32 insertions(+)

diff --git a/hw/arm/allwinner-a10.c b/hw/arm/allwinner-a10.c
index 45cd8d2db5..818145428c 100644
--- a/hw/arm/allwinner-a10.c
+++ b/hw/arm/allwinner-a10.c
@@ -24,12 +24,15 @@
 #include "hw/arm/allwinner-a10.h"
 #include "hw/misc/unimp.h"
 #include "sysemu/sysemu.h"
+#include "hw/boards.h"
+#include "hw/usb/hcd-ohci.h"
 
 #define AW_A10_CCM_REG_BASE     0x01c20000
 #define AW_A10_PIC_REG_BASE     0x01c20400
 #define AW_A10_PIT_REG_BASE     0x01c20c00
 #define AW_A10_UART0_REG_BASE   0x01c28000
 #define AW_A10_EMAC_BASE        0x01c0b000
+#define AW_A10_OHCI_BASE        0x01c14400
 #define AW_A10_SATA_BASE        0x01c18000
 
 static void aw_a10_init(Object *obj)
@@ -53,6 +56,15 @@ static void aw_a10_init(Object *obj)
 
     sysbus_init_child_obj(obj, "sata", &s->sata, sizeof(s->sata),
                           TYPE_ALLWINNER_AHCI);
+
+    if (machine_usb(current_machine)) {
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(s->ohci); i++) {
+            sysbus_init_child_obj(obj, "ohci[*]", OBJECT(&s->ohci[i]),
+                                  sizeof(s->ohci[i]), TYPE_SYSBUS_OHCI);
+        }
+    }
 }
 
 static void aw_a10_realize(DeviceState *dev, Error **errp)
@@ -133,6 +145,24 @@ static void aw_a10_realize(DeviceState *dev, Error **errp)
     serial_mm_init(get_system_memory(), AW_A10_UART0_REG_BASE, 2,
                    qdev_get_gpio_in(dev, 1),
                    115200, serial_hd(0), DEVICE_NATIVE_ENDIAN);
+
+    if (machine_usb(current_machine)) {
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(s->ohci); i++) {
+
+            object_property_set_bool(OBJECT(&s->ohci[i]), true, "realized",
+                                     &err);
+            if (err) {
+                error_propagate(errp, err);
+                return;
+            }
+            sysbus_mmio_map(SYS_BUS_DEVICE(&s->ohci[i]), 0,
+                            AW_A10_OHCI_BASE + i * 0x8000);
+            sysbus_connect_irq(SYS_BUS_DEVICE(&s->ohci[i]), 0,
+                               qdev_get_gpio_in(dev, 64 + i));
+        }
+    }
 }
 
 static void aw_a10_class_init(ObjectClass *oc, void *data)
diff --git a/include/hw/arm/allwinner-a10.h b/include/hw/arm/allwinner-a10.h
index 0007a927bb..4864adbec3 100644
--- a/include/hw/arm/allwinner-a10.h
+++ b/include/hw/arm/allwinner-a10.h
@@ -9,6 +9,7 @@
 #include "hw/intc/allwinner-a10-pic.h"
 #include "hw/net/allwinner_emac.h"
 #include "hw/ide/ahci.h"
+#include "hw/usb/hcd-ohci.h"
 
 #include "target/arm/cpu.h"
 
@@ -29,6 +30,7 @@ typedef struct AwA10State {
     AwEmacState emac;
     AllwinnerAHCIState sata;
     MemoryRegion sram_a;
+    OHCISysBusState ohci[2];
 } AwA10State;
 
 #endif
-- 
2.17.1