[PATCH 2/3] arm: fsl-imx6ul: Wire up USB controllers

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

IMX6UL USB controllers are quite similar to IMX7 USB controllers.
Wire them up the same way.

The only real difference is that wiring up dummy phy devices is necessary
to avoid phy reset timeouts in the Linux kernel.

With this patch, the USB controllers on 'mcimx6ul-evk' are detected
and can be used to boot the system.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 hw/arm/Kconfig              |  1 +
 hw/arm/fsl-imx6ul.c         | 35 +++++++++++++++++++++++++++++++++++
 include/hw/arm/fsl-imx6ul.h |  7 +++++++
 3 files changed, 43 insertions(+)

diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index 61635f52c4..d09b012c5a 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -411,6 +411,7 @@ config FSL_IMX6UL
     select IMX_FEC
     select IMX_I2C
     select SDHCI
+    select STMP
     select UNIMP
 
 config MICROBIT
diff --git a/hw/arm/fsl-imx6ul.c b/hw/arm/fsl-imx6ul.c
index c405b68d1d..d2ee4cc846 100644
--- a/hw/arm/fsl-imx6ul.c
+++ b/hw/arm/fsl-imx6ul.c
@@ -19,6 +19,7 @@
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "hw/arm/fsl-imx6ul.h"
+#include "hw/misc/stmp.h"
 #include "hw/misc/unimp.h"
 #include "hw/boards.h"
 #include "sysemu/sysemu.h"
@@ -133,6 +134,14 @@ static void fsl_imx6ul_init(Object *obj)
                               TYPE_IMX_ENET);
     }
 
+    /* USB */
+    for (i = 0; i < FSL_IMX6UL_NUM_USBS; i++) {
+        snprintf(name, NAME_SIZE, "usb%d", i);
+        sysbus_init_child_obj(obj, name, &s->usb[i], sizeof(s->usb[i]),
+                              TYPE_CHIPIDEA);
+    }
+
+
     /*
      * SDHCI
      */
@@ -456,6 +465,32 @@ static void fsl_imx6ul_realize(DeviceState *dev, Error **errp)
                                             FSL_IMX6UL_ENETn_TIMER_IRQ[i]));
     }
 
+    /* USB */
+    for (i = 0; i < FSL_IMX6UL_NUM_USBS; i++) {
+        static const int FSL_IMX6UL_USBn_IRQ[] = {
+            FSL_IMX6UL_USB2_IRQ,
+            FSL_IMX6UL_USB1_IRQ,
+        };
+
+        object_property_set_bool(OBJECT(&s->usb[i]), true, "realized",
+                                 &error_abort);
+        sysbus_mmio_map(SYS_BUS_DEVICE(&s->usb[i]), 0,
+                        FSL_IMX6UL_USBO2_USB_ADDR + i * 0x200);
+
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->usb[i]), 0,
+                           qdev_get_gpio_in(DEVICE(&s->a7mpcore),
+                                            FSL_IMX6UL_USBn_IRQ[i]));
+
+    }
+    create_unimplemented_device("usbmisc", FSL_IMX6UL_USBO2_USBMISC_ADDR,
+                                0x200);
+    create_unimplemented_device("usbphy1", FSL_IMX6UL_USBPHY1_ADDR,
+                                FSL_IMX6UL_USBPHY1_SIZE);
+    create_stmp_device("usbphy1-stmp", true, FSL_IMX6UL_USBPHY1_ADDR + 0x30);
+    create_unimplemented_device("usbphy2", FSL_IMX6UL_USBPHY2_ADDR,
+                                FSL_IMX6UL_USBPHY2_SIZE);
+    create_stmp_device("usbphy2-stmp", true, FSL_IMX6UL_USBPHY2_ADDR + 0x30);
+
     /*
      * USDHC
      */
diff --git a/include/hw/arm/fsl-imx6ul.h b/include/hw/arm/fsl-imx6ul.h
index eda389aec7..ae738bd5ea 100644
--- a/include/hw/arm/fsl-imx6ul.h
+++ b/include/hw/arm/fsl-imx6ul.h
@@ -34,6 +34,7 @@
 #include "hw/sd/sdhci.h"
 #include "hw/ssi/imx_spi.h"
 #include "hw/net/imx_fec.h"
+#include "hw/usb/chipidea.h"
 #include "exec/memory.h"
 #include "cpu.h"
 
@@ -54,6 +55,7 @@ enum FslIMX6ULConfiguration {
     FSL_IMX6UL_NUM_I2CS         = 4,
     FSL_IMX6UL_NUM_ECSPIS       = 4,
     FSL_IMX6UL_NUM_ADCS         = 2,
+    FSL_IMX6UL_NUM_USBS         = 2,
 };
 
 typedef struct FslIMX6ULState {
@@ -77,6 +79,7 @@ typedef struct FslIMX6ULState {
     IMXFECState        eth[FSL_IMX6UL_NUM_ETHS];
     SDHCIState         usdhc[FSL_IMX6UL_NUM_USDHCS];
     IMX2WdtState       wdt[FSL_IMX6UL_NUM_WDTS];
+    ChipideaState      usb[FSL_IMX6UL_NUM_USBS];
     MemoryRegion       rom;
     MemoryRegion       caam;
     MemoryRegion       ocram;
@@ -145,6 +148,10 @@ enum FslIMX6ULMemoryMap {
     FSL_IMX6UL_EPIT2_ADDR           = 0x020D4000,
     FSL_IMX6UL_EPIT1_ADDR           = 0x020D0000,
     FSL_IMX6UL_SNVS_HP_ADDR         = 0x020CC000,
+    FSL_IMX6UL_USBPHY2_ADDR         = 0x020CA000,
+    FSL_IMX6UL_USBPHY2_SIZE         = (4 * 1024),
+    FSL_IMX6UL_USBPHY1_ADDR         = 0x020C9000,
+    FSL_IMX6UL_USBPHY1_SIZE         = (4 * 1024),
     FSL_IMX6UL_ANALOG_ADDR          = 0x020C8000,
     FSL_IMX6UL_CCM_ADDR             = 0x020C4000,
     FSL_IMX6UL_WDOG2_ADDR           = 0x020C0000,
-- 
2.17.1