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i.MX35: Add USB control register access support

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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Daniel Mack <daniel@caiaq.de>
This commit is contained in:
Sascha Hauer 2010-02-04 14:34:48 +01:00
parent 9cf945cbef
commit d186f04c17
2 changed files with 59 additions and 0 deletions
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55
arch/arm/plat-mxc/ehci.c
View File

@ -38,6 +38,18 @@
#define MX31_H1_PM_BIT (1 << 8)
#define MX31_H1_DT_BIT (1 << 4)
#define MX35_OTG_SIC_SHIFT 29
#define MX35_OTG_SIC_MASK (0x3 << MX35_OTG_SIC_SHIFT)
#define MX35_OTG_PM_BIT (1 << 24)
#define MX35_H1_SIC_SHIFT 21
#define MX35_H1_SIC_MASK (0x3 << MX35_H1_SIC_SHIFT)
#define MX35_H1_PM_BIT (1 << 8)
#define MX35_H1_IPPUE_UP_BIT (1 << 7)
#define MX35_H1_IPPUE_DOWN_BIT (1 << 6)
#define MX35_H1_TLL_BIT (1 << 5)
#define MX35_H1_USBTE_BIT (1 << 4)
int mxc_set_usbcontrol(int port, unsigned int flags)
{
unsigned int v;
@ -85,6 +97,49 @@ int mxc_set_usbcontrol(int port, unsigned int flags)
USBCTRL_OTGBASE_OFFSET));
return 0;
}
if (cpu_is_mx35()) {
v = readl(MX35_IO_ADDRESS(MX35_OTG_BASE_ADDR +
USBCTRL_OTGBASE_OFFSET));
switch (port) {
case 0: /* OTG port */
v &= ~(MX35_OTG_SIC_MASK | MX35_OTG_PM_BIT);
v |= (flags & MXC_EHCI_INTERFACE_MASK)
<< MX35_OTG_SIC_SHIFT;
if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
v |= MX35_OTG_PM_BIT;
break;
case 1: /* H1 port */
v &= ~(MX35_H1_SIC_MASK | MX35_H1_PM_BIT | MX35_H1_TLL_BIT |
MX35_H1_USBTE_BIT | MX35_H1_IPPUE_DOWN_BIT | MX35_H1_IPPUE_UP_BIT);
v |= (flags & MXC_EHCI_INTERFACE_MASK)
<< MX35_H1_SIC_SHIFT;
if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
v |= MX35_H1_PM_BIT;
if (!(flags & MXC_EHCI_TTL_ENABLED))
v |= MX35_H1_TLL_BIT;
if (flags & MXC_EHCI_INTERNAL_PHY)
v |= MX35_H1_USBTE_BIT;
if (flags & MXC_EHCI_IPPUE_DOWN)
v |= MX35_H1_IPPUE_DOWN_BIT;
if (flags & MXC_EHCI_IPPUE_UP)
v |= MX35_H1_IPPUE_UP_BIT;
break;
default:
return -EINVAL;
}
writel(v, MX35_IO_ADDRESS(MX35_OTG_BASE_ADDR +
USBCTRL_OTGBASE_OFFSET));
return 0;
}
#endif /* CONFIG_ARCH_MX3 */
#ifdef CONFIG_MACH_MX27
if (cpu_is_mx27()) {

4
arch/arm/plat-mxc/include/mach/mxc_ehci.h
View File

@ -22,6 +22,10 @@
#define MXC_EHCI_POWER_PINS_ENABLED (1 << 5)
#define MXC_EHCI_TTL_ENABLED (1 << 6)
#define MXC_EHCI_INTERNAL_PHY (1 << 7)
#define MXC_EHCI_IPPUE_DOWN (1 << 8)
#define MXC_EHCI_IPPUE_UP (1 << 9)
struct mxc_usbh_platform_data {
int (*init)(struct platform_device *pdev);
int (*exit)(struct platform_device *pdev);