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tegra: usb: move [start|stop]_port into ehci_hcd_[init|stop]

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The ehci_hcd entry points were just calling into the Tegra USB
functions. Now that they are in the same file we can just move over the
implementation.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Lucas Stach 2013-02-07 07:16:30 +00:00 • committed by Tom Warren
parent 7ae18f3725
commit d7a55e1a4b
2 changed files with 51 additions and 87 deletions
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19
arch/arm/include/asm/arch-tegra/usb.h
View file

@ -246,23 +246,4 @@ struct usb_ctlr {
/* Setup USB on the board */
int board_usb_init(const void *blob);
/**
* 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 portnum 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 tegrausb_start_port(int portnum, u32 *hccr, u32 *hcor);
/**
* Stop the current port
*
* @return 0 if ok, -1 if no port was active
*/
int tegrausb_stop_port(int portnum);
#endif /* _TEGRA_USB_H_ */

119
drivers/usb/host/ehci-tegra.c
View file

@ -438,60 +438,6 @@ static void config_clock(const u32 timing[])
timing[PARAM_CPCON], timing[PARAM_LFCON]);
}
int tegrausb_start_port(int portnum, u32 *hccr, u32 *hcor)
{
struct fdt_usb *config;
struct usb_ctlr *usbctlr;
if (portnum >= port_count)
return -1;
config = &port[portnum];
/* 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", portnum);
return -1;
}
if (config->ulpi && init_ulpi_usb_controller(config)) {
printf("tegrausb: Cannot init port %d\n", portnum);
return -1;
}
set_host_mode(config);
config->initialized = 1;
success:
usbctlr = config->reg;
*hccr = (u32)&usbctlr->cap_length;
*hcor = (u32)&usbctlr->usb_cmd;
return 0;
}
int tegrausb_stop_port(int portnum)
{
struct usb_ctlr *usbctlr;
usbctlr = port[portnum].reg;
/* Stop controller */
writel(0, &usbctlr->usb_cmd);
udelay(1000);
/* Initiate controller reset */
writel(2, &usbctlr->usb_cmd);
udelay(1000);
port[portnum].initialized = 0;
return 0;
}
int fdt_decode_usb(const void *blob, int node, struct fdt_usb *config)
{
const char *phy, *mode;
@ -576,32 +522,69 @@ int board_usb_init(const void *blob)
return 0;
}
/*
* Create the appropriate control structures to manage
* a new EHCI host controller.
/**
* 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)
{
u32 our_hccr, our_hcor;
struct fdt_usb *config;
struct usb_ctlr *usbctlr;
/*
* Select the first port, as we don't have a way of selecting others
* yet
*/
if (tegrausb_start_port(index, &our_hccr, &our_hcor))
if (index >= port_count)
return -1;
*hccr = (struct ehci_hccr *)our_hccr;
*hcor = (struct ehci_hcor *)our_hcor;
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;
}
/*
* Destroy the appropriate control structures corresponding
* the the EHCI host controller.
* Bring down the specified USB controller
*/
int ehci_hcd_stop(int index)
{
return tegrausb_stop_port(index);
struct usb_ctlr *usbctlr;
usbctlr = port[index].reg;
/* Stop controller */
writel(0, &usbctlr->usb_cmd);
udelay(1000);
/* Initiate controller reset */
writel(2, &usbctlr->usb_cmd);
udelay(1000);
port[index].initialized = 0;
return 0;
}