From fb3bfbb24a72a495f3fb1716d386fb4bbe5990fa Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 9 Apr 2016 15:00:52 +0200 Subject: 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 Acked-by: Ian Campbell --- drivers/usb/host/ehci-sunxi.c | 10 +++++++--- drivers/usb/host/ohci-sunxi.c | 10 +++++++--- 2 files changed, 14 insertions(+), 6 deletions(-) (limited to 'drivers/usb') diff --git a/drivers/usb/host/ehci-sunxi.c b/drivers/usb/host/ehci-sunxi.c index d5eb492169..f2d83e34bc 100644 --- a/drivers/usb/host/ehci-sunxi.c +++ b/drivers/usb/host/ehci-sunxi.c @@ -38,6 +38,7 @@ static int ehci_usb_probe(struct udevice *dev) struct ehci_sunxi_priv *priv = dev_get_priv(dev); struct ehci_hccr *hccr = (struct ehci_hccr *)dev_get_addr(dev); struct ehci_hcor *hcor; + int extra_ahb_gate_mask = 0; /* * This should go away once we've moved to the driver model for @@ -45,15 +46,18 @@ static int ehci_usb_probe(struct udevice *dev) */ priv->ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_EHCI0; #ifdef CONFIG_MACH_SUN8I_H3 - priv->ahb_gate_mask |= 1 << AHB_GATE_OFFSET_USB_OHCI0; + extra_ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_OHCI0; #endif priv->phy_index = ((u32)hccr - SUNXI_USB1_BASE) / BASE_DIST; priv->ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST; + extra_ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST; 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); #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); diff --git a/drivers/usb/host/ohci-sunxi.c b/drivers/usb/host/ohci-sunxi.c index 6f3f4cec16..2a1e8bf1e8 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); -- cgit v1.2.1