void __init omap_usb_init(struct omap_usb_config *pdata)
{
if (cpu_is_omap730() || cpu_is_omap16xx() || cpu_is_omap24xx())
omap_otg_init(pdata);
else if (cpu_is_omap15xx())
omap_1510_usb_init(pdata);
else
printk(KERN_ERR "USB: No init for your chip yet\n");
}
static void tahvo_usb_become_peripheral(struct tahvo_usb *tu)
{
/* Clear system and transceiver controlled bits
* and enable ID to mark peripheral mode and
* BSESSEND to mark no Vbus */
omap_otg_init();
OTG_CTRL_REG = (OTG_CTRL_REG & ~(OTG_CTRL_XCVR_MASK|OTG_CTRL_SYS_MASK|OTG_BSESSVLD))
| OTG_ID | OTG_BSESSEND;
/* Power up transceiver and set it in USB perhiperal mode */
tahvo_write_reg(TAHVO_REG_USBR, USBR_SLAVE_CONTROL | USBR_REGOUT | USBR_NSUSPEND | USBR_SLAVE_SW);
tu->otg.state = OTG_STATE_B_IDLE;
check_vbus_state(tu);
}
static int omap_otg_probe(struct device *dev)
{
int ret;
tahvo_otg_dev = to_platform_device(dev);
ret = omap_otg_init();
if (ret != 0) {
printk(KERN_ERR "tahvo-usb: omap_otg_init failed\n");
return ret;
}
return request_irq(tahvo_otg_dev->resource[1].start,
omap_otg_irq, IRQF_DISABLED, DRIVER_NAME,
&tahvo_usb_device);
}
static void tahvo_usb_become_host(struct tahvo_usb *tu)
{
u32 l;
/* Clear system and transceiver controlled bits
* also mark the A-session is always valid */
omap_otg_init();
l = OTG_CTRL_REG;
l &= ~(OTG_CTRL_XCVR_MASK|OTG_CTRL_SYS_MASK);
l |= OTG_ASESSVLD;
OTG_CTRL_REG = l;
/* Power up the transceiver in USB host mode */
tahvo_write_reg(TAHVO_REG_USBR, USBR_REGOUT | USBR_NSUSPEND |
USBR_MASTER_SW2 | USBR_MASTER_SW1);
tu->otg.state = OTG_STATE_A_IDLE;
check_vbus_state(tu);
}
void __init omap2_usbfs_init(struct omap_usb_config *pdata)
{
struct clk *ick;
if (!cpu_is_omap24xx())
return;
ick = clk_get(NULL, "usb_l4_ick");
if (IS_ERR(ick))
return;
clk_enable(ick);
pdata->usb0_init = omap2_usb0_init;
pdata->usb1_init = omap2_usb1_init;
pdata->usb2_init = omap2_usb2_init;
udc_device_init(pdata);
ohci_device_init(pdata);
otg_device_init(pdata);
omap_otg_init(pdata);
clk_disable(ick);
clk_put(ick);
}
static int __init
omap_usb_init(void)
{
const struct omap_usb_config *config;
config = omap_get_config(OMAP_TAG_USB, struct omap_usb_config);
if (config == NULL) {
printk(KERN_ERR "USB: No board-specific "
"platform config found\n");
return -ENODEV;
}
platform_data = *config;
if (cpu_is_omap730() || cpu_is_omap16xx() || cpu_is_omap24xx())
omap_otg_init(&platform_data);
else if (cpu_is_omap15xx())
omap_1510_usb_init(&platform_data);
else {
printk(KERN_ERR "USB: No init for your chip yet\n");
return -ENODEV;
}
return 0;
}