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usb: gadget: fsl_mxc_udc: replace MX35_IO_ADDRESS to ioremap 

As mach/hardware.h is deleted, we can't visit platform code at driver.
It has no phy driver to combine with this controller, so it has to use
ioremap to map phy address as a workaround.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Peter Chen 2013-01-17 18:03:16 +08:00 committed by Felipe Balbi
parent f0ea8834df
commit c2c9caa947
3 changed files with 29 additions and 10 deletions
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32
drivers/usb/gadget/fsl_mxc_udc.c
View File

@ -23,7 +23,8 @@ static struct clk *mxc_per_clk;
static struct clk *mxc_ipg_clk;
/* workaround ENGcm09152 for i.MX35 */
#define USBPHYCTRL_OTGBASE_OFFSET 0x608
#define MX35_USBPHYCTRL_OFFSET 0x600
#define USBPHYCTRL_OTGBASE_OFFSET 0x8
#define USBPHYCTRL_EVDO (1 << 23)
int fsl_udc_clk_init(struct platform_device *pdev)
@ -77,25 +78,40 @@ eclkrate:
return ret;
}
void fsl_udc_clk_finalize(struct platform_device *pdev)
int fsl_udc_clk_finalize(struct platform_device *pdev)
{
struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
unsigned int v;
int ret = 0;
/* workaround ENGcm09152 for i.MX35 */
if (pdata->workaround & FLS_USB2_WORKAROUND_ENGCM09152) {
v = readl(MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
USBPHYCTRL_OTGBASE_OFFSET));
writel(v | USBPHYCTRL_EVDO,
MX35_IO_ADDRESS(MX35_USB_BASE_ADDR +
USBPHYCTRL_OTGBASE_OFFSET));
unsigned int v;
struct resource *res = platform_get_resource
(pdev, IORESOURCE_MEM, 0);
void __iomem *phy_regs = ioremap(res->start +
MX35_USBPHYCTRL_OFFSET, 512);
if (!phy_regs) {
dev_err(&pdev->dev, "ioremap for phy address fails\n");
ret = -EINVAL;
goto ioremap_err;
}
v = readl(phy_regs + USBPHYCTRL_OTGBASE_OFFSET);
writel(v | USBPHYCTRL_EVDO,
phy_regs + USBPHYCTRL_OTGBASE_OFFSET);
iounmap(phy_regs);
}
ioremap_err:
/* ULPI transceivers don't need usbpll */
if (pdata->phy_mode == FSL_USB2_PHY_ULPI) {
clk_disable_unprepare(mxc_per_clk);
mxc_per_clk = NULL;
}
return ret;
}
void fsl_udc_clk_release(void)

4
drivers/usb/gadget/fsl_udc_core.c
View File

@ -2543,7 +2543,9 @@ static int __init fsl_udc_probe(struct platform_device *pdev)
dr_controller_setup(udc_controller);
}
fsl_udc_clk_finalize(pdev);
ret = fsl_udc_clk_finalize(pdev);
if (ret)
goto err_free_irq;
/* Setup gadget structure */
udc_controller->gadget.ops = &fsl_gadget_ops;

5
drivers/usb/gadget/fsl_usb2_udc.h
View File

@ -592,15 +592,16 @@ static inline struct ep_queue_head *get_qh_by_ep(struct fsl_ep *ep)
struct platform_device;
#ifdef CONFIG_ARCH_MXC
int fsl_udc_clk_init(struct platform_device *pdev);
void fsl_udc_clk_finalize(struct platform_device *pdev);
int fsl_udc_clk_finalize(struct platform_device *pdev);
void fsl_udc_clk_release(void);
#else
static inline int fsl_udc_clk_init(struct platform_device *pdev)
{
return 0;
}
static inline void fsl_udc_clk_finalize(struct platform_device *pdev)
static inline int fsl_udc_clk_finalize(struct platform_device *pdev)
{
return 0;
}
static inline void fsl_udc_clk_release(void)
{