diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/musb/blackfin.c | 72 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_core.h | 2 |
2 files changed, 24 insertions, 50 deletions
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c index fcb5206..930a261 100644 --- a/drivers/usb/musb/blackfin.c +++ b/drivers/usb/musb/blackfin.c @@ -324,8 +324,30 @@ int musb_platform_set_mode(struct musb *musb, u8 musb_mode) return -EIO; } -static void musb_platform_reg_init(struct musb *musb) +int __init musb_platform_init(struct musb *musb, void *board_data) { + + /* + * Rev 1.0 BF549 EZ-KITs require PE7 to be high for both DEVICE + * and OTG HOST modes, while rev 1.1 and greater require PE7 to + * be low for DEVICE mode and high for HOST mode. We set it high + * here because we are in host mode + */ + + if (gpio_request(musb->config->gpio_vrsel, "USB_VRSEL")) { + printk(KERN_ERR "Failed ro request USB_VRSEL GPIO_%d \n", + musb->config->gpio_vrsel); + return -ENODEV; + } + gpio_direction_output(musb->config->gpio_vrsel, 0); + + usb_nop_xceiv_register(); + musb->xceiv = otg_get_transceiver(); + if (!musb->xceiv) { + gpio_free(musb->config->gpio_vrsel); + return -ENODEV; + } + if (ANOMALY_05000346) { bfin_write_USB_APHY_CALIB(ANOMALY_05000346_value); SSYNC(); @@ -360,33 +382,6 @@ static void musb_platform_reg_init(struct musb *musb) EP2_RX_ENA | EP3_RX_ENA | EP4_RX_ENA | EP5_RX_ENA | EP6_RX_ENA | EP7_RX_ENA); SSYNC(); -} - -int __init musb_platform_init(struct musb *musb, void *board_data) -{ - - /* - * Rev 1.0 BF549 EZ-KITs require PE7 to be high for both DEVICE - * and OTG HOST modes, while rev 1.1 and greater require PE7 to - * be low for DEVICE mode and high for HOST mode. We set it high - * here because we are in host mode - */ - - if (gpio_request(musb->config->gpio_vrsel, "USB_VRSEL")) { - printk(KERN_ERR "Failed ro request USB_VRSEL GPIO_%d\n", - musb->config->gpio_vrsel); - return -ENODEV; - } - gpio_direction_output(musb->config->gpio_vrsel, 0); - - usb_nop_xceiv_register(); - musb->xceiv = otg_get_transceiver(); - if (!musb->xceiv) { - gpio_free(musb->config->gpio_vrsel); - return -ENODEV; - } - - musb_platform_reg_init(musb); if (is_host_enabled(musb)) { musb->board_set_vbus = bfin_set_vbus; @@ -401,27 +396,6 @@ int __init musb_platform_init(struct musb *musb, void *board_data) return 0; } -#ifdef CONFIG_PM -void musb_platform_save_context(struct musb *musb, - struct musb_context_registers *musb_context) -{ - if (is_host_active(musb)) - /* - * During hibernate gpio_vrsel will change from high to low - * low which will generate wakeup event resume the system - * immediately. Set it to 0 before hibernate to avoid this - * wakeup event. - */ - gpio_set_value(musb->config->gpio_vrsel, 0); -} - -void musb_platform_restore_context(struct musb *musb, - struct musb_context_registers *musb_context) -{ - musb_platform_reg_init(musb); -} -#endif - int musb_platform_exit(struct musb *musb) { gpio_free(musb->config->gpio_vrsel); diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index febaabc..69797e5 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -487,7 +487,7 @@ struct musb_context_registers { }; #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \ - defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_BLACKFIN) + defined(CONFIG_ARCH_OMAP4) extern void musb_platform_save_context(struct musb *musb, struct musb_context_registers *musb_context); extern void musb_platform_restore_context(struct musb *musb, |