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yaml
---
r: 226163
b: refs/heads/master
c: 711669e
h: refs/heads/master
i:
  226161: 364e400
  226159: 574023d
v: v3
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Arnaud Patard (Rtp) authored and Sascha Hauer committed Jan 3, 2011
1 parent e5a8d7e commit a5eeb04
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Showing 3 changed files with 76 additions and 15 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 8305ed75d1418f02933a48bcabdbb5032d885628
refs/heads/master: 711669e5b80b6f2d88f61ed8a9681f83d8cbd201
45 changes: 43 additions & 2 deletions trunk/arch/arm/mach-mx5/clock-mx51-mx53.c
Original file line number Diff line number Diff line change
Expand Up @@ -954,6 +954,41 @@ static struct clk usboh3_clk = {
.parent = &pll2_sw_clk,
.get_rate = clk_usboh3_get_rate,
.set_parent = clk_usboh3_set_parent,
.enable = _clk_ccgr_enable,
.disable = _clk_ccgr_disable,
.enable_reg = MXC_CCM_CCGR2,
.enable_shift = MXC_CCM_CCGRx_CG14_OFFSET,
};

static struct clk usb_ahb_clk = {
.parent = &ipg_clk,
.enable = _clk_ccgr_enable,
.disable = _clk_ccgr_disable,
.enable_reg = MXC_CCM_CCGR2,
.enable_shift = MXC_CCM_CCGRx_CG13_OFFSET,
};

static int clk_usb_phy1_set_parent(struct clk *clk, struct clk *parent)
{
u32 reg;

reg = __raw_readl(MXC_CCM_CSCMR1) & ~MXC_CCM_CSCMR1_USB_PHY_CLK_SEL;

if (parent == &pll3_sw_clk)
reg |= 1 << MXC_CCM_CSCMR1_USB_PHY_CLK_SEL_OFFSET;

__raw_writel(reg, MXC_CCM_CSCMR1);

return 0;
}

static struct clk usb_phy1_clk = {
.parent = &pll3_sw_clk,
.set_parent = clk_usb_phy1_set_parent,
.enable = _clk_ccgr_enable,
.enable_reg = MXC_CCM_CCGR2,
.enable_shift = MXC_CCM_CCGRx_CG0_OFFSET,
.disable = _clk_ccgr_disable,
};

/* eCSPI */
Expand Down Expand Up @@ -1094,9 +1129,12 @@ static struct clk_lookup mx51_lookups[] = {
_REGISTER_CLOCK("imx-i2c.1", NULL, i2c2_clk)
_REGISTER_CLOCK("imx-i2c.2", NULL, hsi2c_clk)
_REGISTER_CLOCK("mxc-ehci.0", "usb", usboh3_clk)
_REGISTER_CLOCK("mxc-ehci.0", "usb_ahb", ahb_clk)
_REGISTER_CLOCK("mxc-ehci.0", "usb_ahb", usb_ahb_clk)
_REGISTER_CLOCK("mxc-ehci.0", "usb_phy1", usb_phy1_clk)
_REGISTER_CLOCK("mxc-ehci.1", "usb", usboh3_clk)
_REGISTER_CLOCK("mxc-ehci.1", "usb_ahb", ahb_clk)
_REGISTER_CLOCK("mxc-ehci.1", "usb_ahb", usb_ahb_clk)
_REGISTER_CLOCK("mxc-ehci.2", "usb", usboh3_clk)
_REGISTER_CLOCK("mxc-ehci.2", "usb_ahb", usb_ahb_clk)
_REGISTER_CLOCK("fsl-usb2-udc", "usb", usboh3_clk)
_REGISTER_CLOCK("fsl-usb2-udc", "usb_ahb", ahb_clk)
_REGISTER_CLOCK("imx-keypad.0", NULL, kpp_clk)
Expand Down Expand Up @@ -1170,6 +1208,9 @@ int __init mx51_clocks_init(unsigned long ckil, unsigned long osc,
mx51_revision();
clk_disable(&iim_clk);

/* move usb_phy_clk to 24MHz */
clk_set_parent(&usb_phy1_clk, &osc_clk);

/* set the usboh3_clk parent to pll2_sw_clk */
clk_set_parent(&usboh3_clk, &pll2_sw_clk);

Expand Down
44 changes: 32 additions & 12 deletions trunk/drivers/usb/host/ehci-mxc.c
Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@
#define ULPI_VIEWPORT_OFFSET 0x170

struct ehci_mxc_priv {
struct clk *usbclk, *ahbclk;
struct clk *usbclk, *ahbclk, *phy1clk;
struct usb_hcd *hcd;
};

Expand Down Expand Up @@ -168,17 +168,6 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
goto err_ioremap;
}

/* call platform specific init function */
if (pdata->init) {
ret = pdata->init(pdev);
if (ret) {
dev_err(dev, "platform init failed\n");
goto err_init;
}
/* platforms need some time to settle changed IO settings */
mdelay(10);
}

/* enable clocks */
priv->usbclk = clk_get(dev, "usb");
if (IS_ERR(priv->usbclk)) {
Expand All @@ -196,6 +185,28 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
clk_enable(priv->ahbclk);
}

/* "dr" device has its own clock */
if (pdev->id == 0) {
priv->phy1clk = clk_get(dev, "usb_phy1");
if (IS_ERR(priv->phy1clk)) {
ret = PTR_ERR(priv->phy1clk);
goto err_clk_phy;
}
clk_enable(priv->phy1clk);
}


/* call platform specific init function */
if (pdata->init) {
ret = pdata->init(pdev);
if (ret) {
dev_err(dev, "platform init failed\n");
goto err_init;
}
/* platforms need some time to settle changed IO settings */
mdelay(10);
}

/* setup specific usb hw */
ret = mxc_initialize_usb_hw(pdev->id, pdata->flags);
if (ret < 0)
Expand Down Expand Up @@ -230,6 +241,11 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
if (pdata && pdata->exit)
pdata->exit(pdev);
err_init:
if (priv->phy1clk) {
clk_disable(priv->phy1clk);
clk_put(priv->phy1clk);
}
err_clk_phy:
if (priv->ahbclk) {
clk_disable(priv->ahbclk);
clk_put(priv->ahbclk);
Expand Down Expand Up @@ -273,6 +289,10 @@ static int __exit ehci_mxc_drv_remove(struct platform_device *pdev)
clk_disable(priv->ahbclk);
clk_put(priv->ahbclk);
}
if (priv->phy1clk) {
clk_disable(priv->phy1clk);
clk_put(priv->phy1clk);
}

kfree(priv);

Expand Down

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