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authorBenoît Thébaudeau <benoit.thebaudeau@advansee.com>2012-08-10 18:26:50 +0200
committerMarek Vasut <marex@denx.de>2012-09-01 16:21:52 +0200
commitcffcc503580907d733e694d505e12ff6ec6c679a (patch)
tree6e54b3975046871828d0d24a4cecbffaf2e9f48c /common
parent5cec214ecd7ddabc5480958c5355139c07ba8cee (diff)
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usb_storage: Restore non-EHCI support
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>
Diffstat (limited to 'common')
-rw-r--r--common/usb_storage.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/common/usb_storage.c b/common/usb_storage.c
index bdc306f..0cd6399 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];