[PATCH] usb: gadget: fsl_udc: add imx6_barebox_(load/start)_usb

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

These can be called from barebox PBL when booted from USB to continue
USB boot. This isn't necessary in the general case when RAM setup is
done via DCD, but for cases where setup is done in PBL, these helpers
come in handy. Tested on i.MX6Q.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 drivers/usb/gadget/fsl_udc_pbl.c | 11 +++++++++++
 include/soc/fsl/fsl_udc.h        |  3 +++
 2 files changed, 14 insertions(+)

diff --git a/drivers/usb/gadget/fsl_udc_pbl.c b/drivers/usb/gadget/fsl_udc_pbl.c
index 0fbe941b1222..8b714d4c8b02 100644
--- a/drivers/usb/gadget/fsl_udc_pbl.c
+++ b/drivers/usb/gadget/fsl_udc_pbl.c
@@ -4,6 +4,7 @@
 #include <usb/ch9.h>
 #include <soc/fsl/fsl_udc.h>
 #include <mach/imx8mm-regs.h>
+#include <mach/imx6-regs.h>
 
 static void fsl_queue_td(struct usb_dr_device *dr, struct ep_td_struct *dtd,
 			 int ep_is_in)
@@ -199,6 +200,16 @@ int imx_barebox_start_usb(void __iomem *dr, void *dest)
 	bb();
 }
 
+int imx6_barebox_load_usb(void *dest)
+{
+	return imx_barebox_load_usb(IOMEM(MX6_OTG_BASE_ADDR), dest);
+}
+
+int imx6_barebox_start_usb(void *dest)
+{
+	return imx_barebox_start_usb(IOMEM(MX6_OTG_BASE_ADDR), dest);
+}
+
 int imx8mm_barebox_load_usb(void *dest)
 {
 	return imx_barebox_load_usb(IOMEM(MX8MM_USB1_BASE_ADDR), dest);
diff --git a/include/soc/fsl/fsl_udc.h b/include/soc/fsl/fsl_udc.h
index 9fb6da58a146..aa1db2fb3816 100644
--- a/include/soc/fsl/fsl_udc.h
+++ b/include/soc/fsl/fsl_udc.h
@@ -382,6 +382,9 @@ struct ep_td_struct {
 int imx_barebox_load_usb(void __iomem *dr, void *dest);
 int imx_barebox_start_usb(void __iomem *dr, void *dest);
 
+int imx6_barebox_load_usb(void *dest);
+int imx6_barebox_start_usb(void *dest);
+
 int imx8mm_barebox_load_usb(void *dest);
 int imx8mm_barebox_start_usb(void *dest);
 
-- 
2.30.2