int board_usb_init(const void *blob)
{
struct fdt_usb config;
unsigned osc_freq = clock_get_rate(CLOCK_ID_OSC);
enum clock_osc_freq freq;
int node_list[USB_PORTS_MAX];
int node, count, i;
/* Set up the USB clocks correctly based on our oscillator frequency */
freq = clock_get_osc_freq();
config_clock(usb_pll[freq]);
/* count may return <0 on error */
count = fdtdec_find_aliases_for_id(blob, "usb",
COMPAT_NVIDIA_TEGRA20_USB, node_list, USB_PORTS_MAX);
for (i = 0; i < count; i++) {
debug("USB %d: ", i);
node = node_list[i];
if (!node)
continue;
if (fdt_decode_usb(blob, node, osc_freq, &config)) {
debug("Cannot decode USB node %s\n",
fdt_get_name(blob, node, NULL));
return -1;
}
if (add_port(&config, usb_pll[freq]))
return -1;
set_host_mode(&config);
}
return 0;
}
/**
* Start up the given port number (ports are numbered from 0 on each board).
* This returns values for the appropriate hccr and hcor addresses to use for
* USB EHCI operations.
*
* @param index port number to start
* @param hccr returns start address of EHCI HCCR registers
* @param hcor returns start address of EHCI HCOR registers
* @return 0 if ok, -1 on error (generally invalid port number)
*/
int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
struct fdt_usb *config;
struct usb_ctlr *usbctlr;
if (index >= port_count)
return -1;
config = &port[index];
/* skip init, if the port is already initialized */
if (config->initialized)
goto success;
if (config->utmi && init_utmi_usb_controller(config)) {
printf("tegrausb: Cannot init port %d\n", index);
return -1;
}
if (config->ulpi && init_ulpi_usb_controller(config)) {
printf("tegrausb: Cannot init port %d\n", index);
return -1;
}
set_host_mode(config);
config->initialized = 1;
success:
usbctlr = config->reg;
*hccr = (struct ehci_hccr *)&usbctlr->cap_length;
*hcor = (struct ehci_hcor *)&usbctlr->usb_cmd;
return 0;
}
int tegrausb_start_port(int portnum, u32 *hccr, u32 *hcor)
{
struct usb_ctlr *usbctlr;
if (portnum >= port_count)
return -1;
set_host_mode(&port[portnum]);
usbctlr = port[portnum].reg;
*hccr = (u32)&usbctlr->cap_length;
*hcor = (u32)&usbctlr->usb_cmd;
return 0;
}
/**
* Start up the given port number (ports are numbered from 0 on each board).
* This returns values for the appropriate hccr and hcor addresses to use for
* USB EHCI operations.
*
* @param index port number to start
* @param hccr returns start address of EHCI HCCR registers
* @param hcor returns start address of EHCI HCOR registers
* @return 0 if ok, -1 on error (generally invalid port number)
*/
int ehci_hcd_init(int index, enum usb_init_type init,
struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
struct fdt_usb *config;
struct usb_ctlr *usbctlr;
if (index >= port_count)
return -1;
config = &port[index];
/* skip init, if the port is already initialized */
if (config->initialized)
goto success;
if (config->utmi && init_utmi_usb_controller(config)) {
printf("tegrausb: Cannot init port %d\n", index);
return -1;
}
if (config->ulpi && init_ulpi_usb_controller(config)) {
printf("tegrausb: Cannot init port %d\n", index);
return -1;
}
set_host_mode(config);
config->initialized = 1;
success:
usbctlr = config->reg;
*hccr = (struct ehci_hccr *)&usbctlr->cap_length;
*hcor = (struct ehci_hcor *)&usbctlr->usb_cmd;
if (controller->has_hostpc) {
/* Set to Host mode after Controller Reset was done */
clrsetbits_le32(&usbctlr->usb_mode, USBMODE_CM_HC,
USBMODE_CM_HC);
/* Select UTMI parallel interface after setting host mode */
if (config->utmi) {
clrsetbits_le32((char *)&usbctlr->usb_cmd +
HOSTPC1_DEVLC, PTS_MASK,
PTS_UTMI << PTS_SHIFT);
clrbits_le32((char *)&usbctlr->usb_cmd +
HOSTPC1_DEVLC, STS);
}
}
return 0;
}
int tegrausb_start_port(unsigned portnum, u32 *hccr, u32 *hcor)
{
struct usb_ctlr *usbctlr;
if (portnum >= port_count)
return -1;
tegrausb_stop_port();
set_host_mode(&port[portnum]);
usbctlr = port[portnum].reg;
*hccr = (u32)&usbctlr->cap_length;
*hcor = (u32)&usbctlr->usb_cmd;
port_current = portnum;
return 0;
}
/* Put our ports into host mode */
void usb_set_host_mode(void)
{
if (host_dev_ctlr)
set_host_mode(host_dev_ctlr);
}
