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authorJan Andersson <jan@gaisler.com>2011-05-03 14:11:57 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2011-05-03 14:43:21 -0400
commitc430131a02d677aa708f56342c1565edfdacb3c0 (patch)
tree15e9930a2512e4b05b7cfd4684f36dd26b0b990f /drivers/usb/host/ehci-cns3xxx.c
parent2ce2c3ac8852cfc8f74f4b7b9a2c4cdff007f96a (diff)
USB: EHCI: Support controllers with big endian capability regs
The two first HC capability registers (CAPLENGTH and HCIVERSION) are defined as one 8-bit and one 16-bit register. Most HC implementations have selected to treat these registers as part of a 32-bit register, giving the same layout for both big and small endian systems. This patch adds a new quirk, big_endian_capbase, to support controllers with big endian register interfaces that treat HCIVERSION and CAPLENGTH as individual registers. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/ehci-cns3xxx.c')
-rw-r--r--drivers/usb/host/ehci-cns3xxx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-cns3xxx.c b/drivers/usb/host/ehci-cns3xxx.c
index 708a05b5d258..d41745c6f0c4 100644
--- a/drivers/usb/host/ehci-cns3xxx.c
+++ b/drivers/usb/host/ehci-cns3xxx.c
@@ -34,7 +34,7 @@ static int cns3xxx_ehci_init(struct usb_hcd *hcd)
34 34
35 ehci->caps = hcd->regs; 35 ehci->caps = hcd->regs;
36 ehci->regs = hcd->regs 36 ehci->regs = hcd->regs
37 + HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase)); 37 + HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));
38 ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); 38 ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
39 39
40 hcd->has_tt = 0; 40 hcd->has_tt = 0;