From cffcc503580907d733e694d505e12ff6ec6c679a Mon Sep 17 00:00:00 2001
From: =?utf8?q?Beno=C3=AEt=20Th=C3=A9baudeau?=
<benoit.thebaudeau@advansee.com>
Date: Fri, 10 Aug 2012 18:26:50 +0200
Subject: [PATCH] usb_storage: Restore non-EHCI support
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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@advansee.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Ilya Yanok <ilya.yanok@cogentembedded.com>
Cc: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>
---
common/usb_storage.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/common/usb_storage.c b/common/usb_storage.c
index bdc306f587..0cd6399a3c 100644
--- a/common/usb_storage.c
+++ b/common/usb_storage.c
@@ -155,11 +155,15 @@ struct us_data {
trans_cmnd transport; /* transport routine */
};
+#ifdef CONFIG_USB_EHCI
/*
* The U-Boot EHCI driver cannot handle more than 5 page aligned buffers
* of 4096 bytes in a transfer without running itself out of qt_buffers
*/
#define USB_MAX_XFER_BLK(start, blksz) (((4096 * 5) - (start % 4096)) / blksz)
+#else
+#define USB_MAX_XFER_BLK(start, blksz) 20
+#endif
static struct us_data usb_stor[USB_MAX_STOR_DEV];
--
2.39.5