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-rw-r--r--drivers/usb/renesas_usbhs/fifo.c9
-rw-r--r--include/linux/usb/renesas_usbhs.h1
2 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index 39fa2fc1b8b7..452b456ac24e 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -543,8 +543,13 @@ static int usbhsf_pio_try_push(struct usbhs_pkt *pkt, int *is_done)
}
/* the rest operation */
- for (i = 0; i < len; i++)
- iowrite8(buf[i], addr + (0x03 - (i & 0x03)));
+ if (usbhs_get_dparam(priv, cfifo_byte_addr)) {
+ for (i = 0; i < len; i++)
+ iowrite8(buf[i], addr + (i & 0x03));
+ } else {
+ for (i = 0; i < len; i++)
+ iowrite8(buf[i], addr + (0x03 - (i & 0x03)));
+ }
/*
* variable update
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index 9097a38fcda8..87043fd21d54 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -191,6 +191,7 @@ struct renesas_usbhs_driver_param {
u32 has_usb_dmac:1; /* for USB-DMAC */
u32 runtime_pwctrl:1;
u32 has_cnen:1;
+ u32 cfifo_byte_addr:1; /* CFIFO is byte addressable */
#define USBHS_USB_DMAC_XFER_SIZE 32 /* hardcode the xfer size */
};