diff options
| -rw-r--r-- | arch/arm/include/asm/arch-mx35/imx-regs.h | 2 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-mxc.c | 69 |
2 files changed, 71 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mx35/imx-regs.h b/arch/arm/include/asm/arch-mx35/imx-regs.h index 7b6475a..18c6816 100644 --- a/arch/arm/include/asm/arch-mx35/imx-regs.h +++ b/arch/arm/include/asm/arch-mx35/imx-regs.h @@ -84,6 +84,8 @@ #define PWM_BASE_ADDR 0x53FE0000 #define RTIC_BASE_ADDR 0x53FEC000 #define IIM_BASE_ADDR 0x53FF0000 +#define IMX_USB_BASE 0x53FF4000 +#define IMX_USB_PORT_OFFSET 0x400 #define IMX_CCM_BASE CCM_BASE_ADDR diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c index 6260a8c..7c5f71c 100644 --- a/drivers/usb/host/ehci-mxc.c +++ b/drivers/usb/host/ehci-mxc.c @@ -58,6 +58,22 @@ #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_OTG_PP_BIT (1 << 11) +#define MX35_OTG_OCPOL_BIT (1 << 3) + +#define MX35_H1_SIC_SHIFT 21 +#define MX35_H1_SIC_MASK (0x3 << MX35_H1_SIC_SHIFT) +#define MX35_H1_PP_BIT (1 << 18) +#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) +#define MX35_H1_OCPOL_BIT (1 << 2) + static int mxc_set_usbcontrol(int port, unsigned int flags) { unsigned int v; @@ -147,6 +163,55 @@ static int mxc_set_usbcontrol(int port, unsigned int flags) default: return -EINVAL; } +#elif defined(CONFIG_MX35) + switch (port) { + case 0: /* OTG port */ + v &= ~(MX35_OTG_SIC_MASK | MX35_OTG_PM_BIT | MX35_OTG_PP_BIT | + MX35_OTG_OCPOL_BIT); + v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX35_OTG_SIC_SHIFT; + + if (!(flags & MXC_EHCI_POWER_PINS_ENABLED)) + v |= MX35_OTG_PM_BIT; + + if (flags & MXC_EHCI_PWR_PIN_ACTIVE_HIGH) + v |= MX35_OTG_PP_BIT; + + if (!(flags & MXC_EHCI_OC_PIN_ACTIVE_LOW)) + v |= MX35_OTG_OCPOL_BIT; + + break; + case 1: /* H1 port */ + v &= ~(MX35_H1_SIC_MASK | MX35_H1_PM_BIT | MX35_H1_PP_BIT | + MX35_H1_OCPOL_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_PWR_PIN_ACTIVE_HIGH) + v |= MX35_H1_PP_BIT; + + if (!(flags & MXC_EHCI_OC_PIN_ACTIVE_LOW)) + v |= MX35_H1_OCPOL_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; + } #else #error MXC EHCI USB driver not supported on this platform #endif @@ -176,6 +241,10 @@ int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor) setbits_le32(&ehci->usbmode, CM_HOST); __raw_writel(CONFIG_MXC_USB_PORTSC, &ehci->portsc); mxc_set_usbcontrol(CONFIG_MXC_USB_PORT, CONFIG_MXC_USB_FLAGS); +#ifdef CONFIG_MX35 + /* Workaround for ENGcm11601 */ + __raw_writel(0, &ehci->sbuscfg); +#endif udelay(10000); |