diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2016-04-09 15:00:52 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2016-04-12 08:58:03 +0200 |
| commit | fb3bfbb24a72a495f3fb1716d386fb4bbe5990fa (patch) | |
| tree | 3f74a1d0194e39e99006e1bfcb65953e8a317f6a /drivers/usb/host/ohci-sunxi.c | |
| parent | 88bb800ddf80fd301c3201596f174b0a82f1da3b (diff) | |
| download | u-boot-imx-fb3bfbb24a72a495f3fb1716d386fb4bbe5990fa.zip u-boot-imx-fb3bfbb24a72a495f3fb1716d386fb4bbe5990fa.tar.gz u-boot-imx-fb3bfbb24a72a495f3fb1716d386fb4bbe5990fa.tar.bz2 | |
sunxi: H3: Do not clear usb companion clk-gate / reset on remove
On the H3 we need to enable the clk and de-assert the reset of the
companion to be able to talk to the actual usb host controller.
Before this commit we were also disabling the companion clk-gate /
asserting its reset on remove, causing the later remove callback of
the companion itself to (sometimes) fail with:
ERROR: USB HC reset timed out!
This commit fixes this by not disabling the companion's clk-gate nor
asserting its reset on remove.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'drivers/usb/host/ohci-sunxi.c')
| -rw-r--r-- | drivers/usb/host/ohci-sunxi.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/host/ohci-sunxi.c b/drivers/usb/host/ohci-sunxi.c index 6f3f4ce..2a1e8bf 100644 --- a/drivers/usb/host/ohci-sunxi.c +++ b/drivers/usb/host/ohci-sunxi.c @@ -38,6 +38,7 @@ static int ohci_usb_probe(struct udevice *dev) struct usb_bus_priv *bus_priv = dev_get_uclass_priv(dev); struct ohci_sunxi_priv *priv = dev_get_priv(dev); struct ohci_regs *regs = (struct ohci_regs *)dev_get_addr(dev); + int extra_ahb_gate_mask = 0; bus_priv->companion = true; @@ -47,18 +48,21 @@ static int ohci_usb_probe(struct udevice *dev) */ priv->ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_OHCI0; #ifdef CONFIG_MACH_SUN8I_H3 - priv->ahb_gate_mask |= 1 << AHB_GATE_OFFSET_USB_EHCI0; + extra_ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_EHCI0; #endif priv->usb_gate_mask = CCM_USB_CTRL_OHCI0_CLK; priv->phy_index = ((u32)regs - (SUNXI_USB1_BASE + 0x400)) / BASE_DIST; priv->ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST; + extra_ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST; priv->usb_gate_mask <<= priv->phy_index; priv->phy_index++; /* Non otg phys start at 1 */ - setbits_le32(&ccm->ahb_gate0, priv->ahb_gate_mask); + setbits_le32(&ccm->ahb_gate0, + priv->ahb_gate_mask | extra_ahb_gate_mask); setbits_le32(&ccm->usb_clk_cfg, priv->usb_gate_mask); #ifdef CONFIG_SUNXI_GEN_SUN6I - setbits_le32(&ccm->ahb_reset0_cfg, priv->ahb_gate_mask); + setbits_le32(&ccm->ahb_reset0_cfg, + priv->ahb_gate_mask | extra_ahb_gate_mask); #endif sunxi_usb_phy_init(priv->phy_index); |