diff options
| author | Ilya Yanok <ilya.yanok@cogentembedded.com> | 2012-07-15 22:12:08 +0000 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2012-07-18 14:43:29 +0200 |
| commit | c7701af59f011e39f52647620a71cc6f2f551d2d (patch) | |
| tree | 983b348891e11465f8c99c1b142d4c5388f97339 /drivers | |
| parent | de4d11355f70e243f91a49fd15c2004251d8f45b (diff) | |
ehci-hcd: program asynclistaddr before every transfer
Move or_asynclistaddr programming to ehci_submit_async()
function to make sure queue head is properly programmed
before every transfer. This solves the problem with changing
qh address.
Also remove unneeded qh_list->qh_link reprogramming at the
end of transfer.
Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 04300be1100..3be2a770bcb 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -348,6 +348,9 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer, flush_dcache_range((uint32_t)&qh, (uint32_t)&qh + sizeof(struct QH)); flush_dcache_range((uint32_t)qtd, (uint32_t)qtd + sizeof(qtd)); + /* Set async. queue head pointer. */ + ehci_writel(&hcor->or_asynclistaddr, (uint32_t)&qh_list); + usbsts = ehci_readl(&hcor->or_usbsts); ehci_writel(&hcor->or_usbsts, (usbsts & 0x3f)); @@ -403,8 +406,6 @@ ehci_submit_async(struct usb_device *dev, unsigned long pipe, void *buffer, goto fail; } - qh_list.qh_link = cpu_to_hc32((uint32_t)&qh_list | QH_LINK_TYPE_QH); - token = hc32_to_cpu(qh.qh_overlay.qt_token); if (!(token & 0x80)) { debug("TOKEN=%#x\n", token); @@ -741,9 +742,6 @@ int usb_lowlevel_init(void) qh_list.qh_overlay.qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE); qh_list.qh_overlay.qt_token = cpu_to_hc32(0x40); - /* Set async. queue head pointer. */ - ehci_writel(&hcor->or_asynclistaddr, (uint32_t)&qh_list); - reg = ehci_readl(&hccr->cr_hcsparams); descriptor.hub.bNbrPorts = HCS_N_PORTS(reg); printf("Register %x NbrPorts %d\n", reg, descriptor.hub.bNbrPorts); |