diff options
author | Jan Andersson <jan@gaisler.com> | 2011-05-03 14:11:57 -0400 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-05-03 14:43:21 -0400 |
commit | c430131a02d677aa708f56342c1565edfdacb3c0 (patch) | |
tree | 15e9930a2512e4b05b7cfd4684f36dd26b0b990f /drivers/usb/host/ehci-s5p.c | |
parent | 2ce2c3ac8852cfc8f74f4b7b9a2c4cdff007f96a (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-s5p.c')
-rw-r--r-- | drivers/usb/host/ehci-s5p.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c index 0c18f280bf4c..321a03301ad2 100644 --- a/drivers/usb/host/ehci-s5p.c +++ b/drivers/usb/host/ehci-s5p.c | |||
@@ -126,7 +126,8 @@ static int s5p_ehci_probe(struct platform_device *pdev) | |||
126 | 126 | ||
127 | ehci = hcd_to_ehci(hcd); | 127 | ehci = hcd_to_ehci(hcd); |
128 | ehci->caps = hcd->regs; | 128 | ehci->caps = hcd->regs; |
129 | ehci->regs = hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase)); | 129 | ehci->regs = hcd->regs + |
130 | HC_LENGTH(ehci, readl(&ehci->caps->hc_capbase)); | ||
130 | 131 | ||
131 | dbg_hcs_params(ehci, "reset"); | 132 | dbg_hcs_params(ehci, "reset"); |
132 | dbg_hcc_params(ehci, "reset"); | 133 | dbg_hcc_params(ehci, "reset"); |