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| author | Jan Andersson <jan@gaisler.com> | 2011-05-03 20:11:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-05-03 11:43:21 -0700 |
| commit | c430131a02d677aa708f56342c1565edfdacb3c0 (patch) | |
| tree | 15e9930a2512e4b05b7cfd4684f36dd26b0b990f /drivers/usb/host/ehci-au1xxx.c | |
| parent | 2ce2c3ac8852cfc8f74f4b7b9a2c4cdff007f96a (diff) | |
| download | kernel_samsung_smdk4412-c430131a02d677aa708f56342c1565edfdacb3c0.zip kernel_samsung_smdk4412-c430131a02d677aa708f56342c1565edfdacb3c0.tar.gz kernel_samsung_smdk4412-c430131a02d677aa708f56342c1565edfdacb3c0.tar.bz2 | |
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-au1xxx.c')
| -rw-r--r-- | drivers/usb/host/ehci-au1xxx.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c index a869e3c..40b0028 100644 --- a/drivers/usb/host/ehci-au1xxx.c +++ b/drivers/usb/host/ehci-au1xxx.c @@ -175,7 +175,8 @@ static int ehci_hcd_au1xxx_drv_probe(struct platform_device *pdev) ehci = hcd_to_ehci(hcd); ehci->caps = hcd->regs; - ehci->regs = hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase)); + ehci->regs = hcd->regs + + HC_LENGTH(ehci, readl(&ehci->caps->hc_capbase)); /* cache this readonly data; minimize chip reads */ ehci->hcs_params = readl(&ehci->caps->hcs_params); |