void __init da8xx_board_usb_init(const short pins[],
struct da8xx_ohci_root_hub *usb11_pdata)
{
int ret;
struct gpio_based *gpio = (usb11_pdata->type == GPIO_BASED) ?
&usb11_pdata->method.gpio_method : NULL;
ret = davinci_cfg_reg_list(pins);
if (ret) {
pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
__func__, ret);
return;
}
if (usb11_pdata->type == GPIO_BASED) {
ret = gpio_request_one(gpio->power_control_pin,
GPIOF_OUT_INIT_LOW, "ON_BD_USB_DRV");
if (ret) {
pr_err("%s: failed to request GPIO for USB 1.1 port "
"power control: %d\n", __func__, ret);
return;
}
ret = gpio_request_one(gpio->over_current_indicator, GPIOF_IN,
"ON_BD_USB_OVC");
if (ret) {
pr_err("%s: failed to request GPIO for USB 1.1 port "
"over-current indicator: %d\n", __func__, ret);
goto usb11_setup_oc_fail;
}
}
usb11_pdata->set_power = da8xx_usb_set_power;
usb11_pdata->get_power = da8xx_usb_get_power;
usb11_pdata->get_oci = da8xx_usb_get_oci;
usb11_pdata->ocic_notify = da8xx_usb_ocic_notify;
/* TPS2087 switch @ 5V */
usb11_pdata->potpgt = (3 + 1) / 2;
ret = da8xx_register_usb11(usb11_pdata);
if (ret) {
pr_warning("%s: USB 1.1 registration failed: %d\n",
__func__, ret);
goto usb11_setup_fail;
}
return;
usb11_setup_fail:
if (usb11_pdata->type == GPIO_BASED)
gpio_free(gpio->over_current_indicator);
usb11_setup_oc_fail:
if (usb11_pdata->type == GPIO_BASED)
gpio_free(gpio->power_control_pin);
}
static __init void omapl138_hawk_usb_init(void)
{
int ret;
u32 cfgchip2;
ret = davinci_cfg_reg_list(da850_hawk_usb11_pins);
if (ret) {
pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
__func__, ret);
return;
}
/* Setup the Ref. clock frequency for the HAWK at 24 MHz. */
cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
cfgchip2 &= ~CFGCHIP2_REFFREQ;
cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
__raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
ret = gpio_request_one(DA850_USB1_VBUS_PIN,
GPIOF_DIR_OUT, "USB1 VBUS");
if (ret < 0) {
pr_err("%s: failed to request GPIO for USB 1.1 port "
"power control: %d\n", __func__, ret);
return;
}
ret = gpio_request_one(DA850_USB1_OC_PIN,
GPIOF_DIR_IN, "USB1 OC");
if (ret < 0) {
pr_err("%s: failed to request GPIO for USB 1.1 port "
"over-current indicator: %d\n", __func__, ret);
goto usb11_setup_oc_fail;
}
ret = da8xx_register_usb11(&omapl138_hawk_usb11_pdata);
if (ret) {
pr_warning("%s: USB 1.1 registration failed: %d\n",
__func__, ret);
goto usb11_setup_fail;
}
return;
usb11_setup_fail:
gpio_free(DA850_USB1_OC_PIN);
usb11_setup_oc_fail:
gpio_free(DA850_USB1_VBUS_PIN);
}
static __init void da830_evm_usb_init(void)
{
u32 cfgchip2;
int ret;
/*
* Set up USB clock/mode in the CFGCHIP2 register.
* FYI: CFGCHIP2 is 0x0000ef00 initially.
*/
cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
/* USB2.0 PHY reference clock is 24 MHz */
cfgchip2 &= ~CFGCHIP2_REFFREQ;
cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
/*
* Select internal reference clock for USB 2.0 PHY
* and use it as a clock source for USB 1.1 PHY
* (this is the default setting anyway).
*/
cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
cfgchip2 |= CFGCHIP2_USB2PHYCLKMUX;
/*
* We have to override VBUS/ID signals when MUSB is configured into the
* host-only mode -- ID pin will float if no cable is connected, so the
* controller won't be able to drive VBUS thinking that it's a B-device.
* Otherwise, we want to use the OTG mode and enable VBUS comparators.
*/
cfgchip2 &= ~CFGCHIP2_OTGMODE;
#ifdef CONFIG_USB_MUSB_HOST
cfgchip2 |= CFGCHIP2_FORCE_HOST;
#else
cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN;
#endif
__raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
/* USB_REFCLKIN is not used. */
ret = davinci_cfg_reg(DA830_USB0_DRVVBUS);
if (ret)
pr_warning("%s: USB 2.0 PinMux setup failed: %d\n",
__func__, ret);
else {
/*
* TPS2065 switch @ 5V supplies 1 A (sustains 1.5 A),
* with the power on to power good time of 3 ms.
*/
ret = da8xx_register_usb20(1000, 3);
if (ret)
pr_warning("%s: USB 2.0 registration failed: %d\n",
__func__, ret);
}
ret = davinci_cfg_reg_list(da830_evm_usb11_pins);
if (ret) {
pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
__func__, ret);
return;
}
ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
if (ret) {
printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
"power control: %d\n", __func__, ret);
return;
}
gpio_direction_output(ON_BD_USB_DRV, 0);
ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
if (ret) {
printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
"over-current indicator: %d\n", __func__, ret);
return;
}
gpio_direction_input(ON_BD_USB_OVC);
ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
if (ret)
pr_warning("%s: USB 1.1 registration failed: %d\n",
__func__, ret);
}