[U-Boot] [PATCH 4/5] usb_storage: Restore non-EHCI support

[Benoît Thébaudeau]

The commit 5dd95cf made the MSC driver EHCI-specific. This patch restores a
basic support of non-EHCI HCDs, like before that commit.

The fallback transfer size is certainly not optimal, but at least it should work
like before.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau at advansee.com>
Cc: Marek Vasut <marex at denx.de>
Cc: Ilya Yanok <ilya.yanok at cogentembedded.com>
Cc: Stefan Herbrechtsmeier <stefan at herbrechtsmeier.net>
---
 .../common/usb_storage.c                           |    4 ++++
 1 file changed, 4 insertions(+)

diff --git u-boot-usb-1b4bd0e.orig/common/usb_storage.c u-boot-usb-1b4bd0e/common/usb_storage.c
index 46f6b75..135c940 100644
--- u-boot-usb-1b4bd0e.orig/common/usb_storage.c
+++ u-boot-usb-1b4bd0e/common/usb_storage.c
@@ -155,12 +155,16 @@ struct us_data {
 	trans_cmnd	transport;		/* transport routine */
 };
 
+#ifdef CONFIG_USB_EHCI
 /*
  * The U-Boot EHCI driver can handle any transfer length as long as there is
  * enough free heap space left, but the SCSI READ(10) and WRITE(10) commands are
  * limited to 65535 bytes.
  */
 #define USB_MAX_XFER_BLK 65535
+#else
+#define USB_MAX_XFER_BLK 20
+#endif
 
 static struct us_data usb_stor[USB_MAX_STOR_DEV];