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usb: ulpi: Extend the existing ulpi framework. 

Extend the existing ulpi viewport framework
to pass the port number information for any ulpi
ops. Fix the usage of ulpi api's accordingly.

Tested-by: Stefano Babic <sbabic@denx.de>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
This commit is contained in:
Govindraj.R 2012-02-06 03:55:31 +00:00 committed by Albert ARIBAUD
parent dd54d3147e
commit 3e6e809f56
4 changed files with 84 additions and 62 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
board/efikamx/efikamx-usb.c
View File

@ -120,6 +120,7 @@ static void efika_ehci_init(struct usb_ehci *ehci, uint32_t stp_gpio,
{ {
int ret; int ret;
struct ulpi_regs *ulpi = (struct ulpi_regs *)0; struct ulpi_regs *ulpi = (struct ulpi_regs *)0;
struct ulpi_viewport ulpi_vp;
mxc_request_iomux(stp_gpio, alt0); mxc_request_iomux(stp_gpio, alt0);
mxc_iomux_set_pad(stp_gpio, PAD_CTL_DRV_HIGH | mxc_iomux_set_pad(stp_gpio, PAD_CTL_DRV_HIGH |
@ -133,23 +134,26 @@ static void efika_ehci_init(struct usb_ehci *ehci, uint32_t stp_gpio,
mxc_iomux_set_pad(stp_gpio, USB_PAD_CONFIG); mxc_iomux_set_pad(stp_gpio, USB_PAD_CONFIG);
udelay(10000); udelay(10000);
ret = ulpi_init((u32)&ehci->ulpi_viewpoint); ulpi_vp.viewport_addr = (u32)&ehci->ulpi_viewpoint;
ulpi_vp.port_num = 0;
ret = ulpi_init(&ulpi_vp);
if (ret) { if (ret) {
printf("Efika USB ULPI initialization failed\n"); printf("Efika USB ULPI initialization failed\n");
return; return;
} }
/* ULPI set flags */ /* ULPI set flags */
ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl, ulpi_write(&ulpi_vp, &ulpi->otg_ctrl,
ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN | ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN |
ULPI_OTG_EXTVBUSIND); ULPI_OTG_EXTVBUSIND);
ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->function_ctrl, ulpi_write(&ulpi_vp, &ulpi->function_ctrl,
ULPI_FC_FULL_SPEED | ULPI_FC_OPMODE_NORMAL | ULPI_FC_FULL_SPEED | ULPI_FC_OPMODE_NORMAL |
ULPI_FC_SUSPENDM); ULPI_FC_SUSPENDM);
ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->iface_ctrl, 0); ulpi_write(&ulpi_vp, &ulpi->iface_ctrl, 0);
/* Set VBus */ /* Set VBus */
ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl_set, ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set,
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
/* /*
@ -158,8 +162,7 @@ static void efika_ehci_init(struct usb_ehci *ehci, uint32_t stp_gpio,
* NOTE: This violates USB specification, but otherwise, USB on Efika * NOTE: This violates USB specification, but otherwise, USB on Efika
* doesn't work. * doesn't work.
*/ */
ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl_set, ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set, ULPI_OTG_CHRGVBUS);
ULPI_OTG_CHRGVBUS);
} }
int board_ehci_hcd_init(int port) int board_ehci_hcd_init(int port)
@ -177,9 +180,12 @@ void ehci_powerup_fixup(uint32_t *status_reg, uint32_t *reg)
uint32_t port = OTG_BASE_ADDR + (0x200 * CONFIG_MXC_USB_PORT); uint32_t port = OTG_BASE_ADDR + (0x200 * CONFIG_MXC_USB_PORT);
struct usb_ehci *ehci = (struct usb_ehci *)port; struct usb_ehci *ehci = (struct usb_ehci *)port;
struct ulpi_regs *ulpi = (struct ulpi_regs *)0; struct ulpi_regs *ulpi = (struct ulpi_regs *)0;
struct ulpi_viewport ulpi_vp;
ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl_set, ulpi_vp.viewport_addr = (u32)&ehci->ulpi_viewpoint;
ULPI_OTG_CHRGVBUS); ulpi_vp.port_num = 0;
ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set, ULPI_OTG_CHRGVBUS);
wait_ms(50); wait_ms(50);

32
drivers/usb/ulpi/ulpi-viewport.c
View File

@ -40,13 +40,13 @@
* *
* returns 0 on mask match, ULPI_ERROR on time out. * returns 0 on mask match, ULPI_ERROR on time out.
*/ */
static int ulpi_wait(u32 ulpi_viewport, u32 mask) static int ulpi_wait(struct ulpi_viewport *ulpi_vp, u32 mask)
{ {
int timeout = CONFIG_USB_ULPI_TIMEOUT; int timeout = CONFIG_USB_ULPI_TIMEOUT;
/* Wait for the bits in mask to become zero. */ /* Wait for the bits in mask to become zero. */
while (--timeout) { while (--timeout) {
if ((readl(ulpi_viewport) & mask) == 0) if ((readl(ulpi_vp->viewport_addr) & mask) == 0)
return 0; return 0;
udelay(1); udelay(1);
@ -60,16 +60,16 @@ static int ulpi_wait(u32 ulpi_viewport, u32 mask)
* *
* returns 0 on success. * returns 0 on success.
*/ */
static int ulpi_wakeup(u32 ulpi_viewport) static int ulpi_wakeup(struct ulpi_viewport *ulpi_vp)
{ {
int err; int err;
if (readl(ulpi_viewport) & ULPI_SS) if (readl(ulpi_vp->viewport_addr) & ULPI_SS)
return 0; /* already awake */ return 0; /* already awake */
writel(ULPI_WU, ulpi_viewport); writel(ULPI_WU, ulpi_vp->viewport_addr);
err = ulpi_wait(ulpi_viewport, ULPI_WU); err = ulpi_wait(ulpi_vp, ULPI_WU);
if (err) if (err)
printf("ULPI wakeup timed out\n"); printf("ULPI wakeup timed out\n");
@ -81,38 +81,40 @@ static int ulpi_wakeup(u32 ulpi_viewport)
* *
* @value - the ULPI request * @value - the ULPI request
*/ */
static int ulpi_request(u32 ulpi_viewport, u32 value) static int ulpi_request(struct ulpi_viewport *ulpi_vp, u32 value)
{ {
int err; int err;
err = ulpi_wakeup(ulpi_viewport); err = ulpi_wakeup(ulpi_vp);
if (err) if (err)
return err; return err;
writel(value, ulpi_viewport); writel(value, ulpi_vp->viewport_addr);
err = ulpi_wait(ulpi_viewport, ULPI_RWRUN); err = ulpi_wait(ulpi_vp, ULPI_RWRUN);
if (err) if (err)
printf("ULPI request timed out\n"); printf("ULPI request timed out\n");
return err; return err;
} }
int ulpi_write(u32 ulpi_viewport, u8 *reg, u32 value) int ulpi_write(struct ulpi_viewport *ulpi_vp, u8 *reg, u32 value)
{ {
u32 val = ULPI_RWRUN | ULPI_RWCTRL | ((u32)reg << 16) | (value & 0xff); u32 val = ULPI_RWRUN | ULPI_RWCTRL | ((u32)reg << 16) | (value & 0xff);
return ulpi_request(ulpi_viewport, val); val |= (ulpi_vp->port_num & 0x7) << 24;
return ulpi_request(ulpi_vp, val);
} }
u32 ulpi_read(u32 ulpi_viewport, u8 *reg) u32 ulpi_read(struct ulpi_viewport *ulpi_vp, u8 *reg)
{ {
int err; int err;
u32 val = ULPI_RWRUN | ((u32)reg << 16); u32 val = ULPI_RWRUN | ((u32)reg << 16);
err = ulpi_request(ulpi_viewport, val); val |= (ulpi_vp->port_num & 0x7) << 24;
err = ulpi_request(ulpi_vp, val);
if (err) if (err)
return err; return err;
return (readl(ulpi_viewport) >> 8) & 0xff; return (readl(ulpi_vp->viewport_addr) >> 8) & 0xff;
} }

54
drivers/usb/ulpi/ulpi.c
View File

@ -37,18 +37,18 @@
static struct ulpi_regs *ulpi = (struct ulpi_regs *)0; static struct ulpi_regs *ulpi = (struct ulpi_regs *)0;
static int ulpi_integrity_check(u32 ulpi_viewport) static int ulpi_integrity_check(struct ulpi_viewport *ulpi_vp)
{ {
u32 val, tval = ULPI_TEST_VALUE; u32 val, tval = ULPI_TEST_VALUE;
int err, i; int err, i;
/* Use the 'special' test value to check all bits */ /* Use the 'special' test value to check all bits */
for (i = 0; i < 2; i++, tval <<= 1) { for (i = 0; i < 2; i++, tval <<= 1) {
err = ulpi_write(ulpi_viewport, &ulpi->scratch, tval); err = ulpi_write(ulpi_vp, &ulpi->scratch, tval);
if (err) if (err)
return err; return err;
val = ulpi_read(ulpi_viewport, &ulpi->scratch); val = ulpi_read(ulpi_vp, &ulpi->scratch);
if (val != tval) { if (val != tval) {
printf("ULPI integrity check failed\n"); printf("ULPI integrity check failed\n");
return val; return val;
@ -58,7 +58,7 @@ static int ulpi_integrity_check(u32 ulpi_viewport)
return 0; return 0;
} }
int ulpi_init(u32 ulpi_viewport) int ulpi_init(struct ulpi_viewport *ulpi_vp)
{ {
u32 val, id = 0; u32 val, id = 0;
u8 *reg = &ulpi->product_id_high; u8 *reg = &ulpi->product_id_high;
@ -66,7 +66,7 @@ int ulpi_init(u32 ulpi_viewport)
/* Assemble ID from four ULPI ID registers (8 bits each). */ /* Assemble ID from four ULPI ID registers (8 bits each). */
for (i = 0; i < ULPI_ID_REGS_COUNT; i++) { for (i = 0; i < ULPI_ID_REGS_COUNT; i++) {
val = ulpi_read(ulpi_viewport, reg - i); val = ulpi_read(ulpi_vp, reg - i);
if (val == ULPI_ERROR) if (val == ULPI_ERROR)
return val; return val;
@ -76,10 +76,10 @@ int ulpi_init(u32 ulpi_viewport)
/* Split ID into vendor and product ID. */ /* Split ID into vendor and product ID. */
debug("ULPI transceiver ID 0x%04x:0x%04x\n", id >> 16, id & 0xffff); debug("ULPI transceiver ID 0x%04x:0x%04x\n", id >> 16, id & 0xffff);
return ulpi_integrity_check(ulpi_viewport); return ulpi_integrity_check(ulpi_vp);
} }
int ulpi_select_transceiver(u32 ulpi_viewport, unsigned speed) int ulpi_select_transceiver(struct ulpi_viewport *ulpi_vp, unsigned speed)
{ {
u32 tspeed = ULPI_FC_FULL_SPEED; u32 tspeed = ULPI_FC_FULL_SPEED;
u32 val; u32 val;
@ -96,17 +96,18 @@ int ulpi_select_transceiver(u32 ulpi_viewport, unsigned speed)
"falling back to full speed\n", __func__, speed); "falling back to full speed\n", __func__, speed);
} }
val = ulpi_read(ulpi_viewport, &ulpi->function_ctrl); val = ulpi_read(ulpi_vp, &ulpi->function_ctrl);
if (val == ULPI_ERROR) if (val == ULPI_ERROR)
return val; return val;
/* clear the previous speed setting */ /* clear the previous speed setting */
val = (val & ~ULPI_FC_XCVRSEL_MASK) | tspeed; val = (val & ~ULPI_FC_XCVRSEL_MASK) | tspeed;
return ulpi_write(ulpi_viewport, &ulpi->function_ctrl, val); return ulpi_write(ulpi_vp, &ulpi->function_ctrl, val);
} }
int ulpi_set_vbus(u32 ulpi_viewport, int on, int ext_power, int ext_ind) int ulpi_set_vbus(struct ulpi_viewport *ulpi_vp, int on, int ext_power,
int ext_ind)
{ {
u32 flags = ULPI_OTG_DRVVBUS; u32 flags = ULPI_OTG_DRVVBUS;
u8 *reg = on ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear; u8 *reg = on ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear;
@ -116,18 +117,18 @@ int ulpi_set_vbus(u32 ulpi_viewport, int on, int ext_power, int ext_ind)
if (ext_ind) if (ext_ind)
flags |= ULPI_OTG_EXTVBUSIND; flags |= ULPI_OTG_EXTVBUSIND;
return ulpi_write(ulpi_viewport, reg, flags); return ulpi_write(ulpi_vp, reg, flags);
} }
int ulpi_set_pd(u32 ulpi_viewport, int enable) int ulpi_set_pd(struct ulpi_viewport *ulpi_vp, int enable)
{ {
u32 val = ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN; u32 val = ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN;
u8 *reg = enable ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear; u8 *reg = enable ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear;
return ulpi_write(ulpi_viewport, reg, val); return ulpi_write(ulpi_vp, reg, val);
} }
int ulpi_opmode_sel(u32 ulpi_viewport, unsigned opmode) int ulpi_opmode_sel(struct ulpi_viewport *ulpi_vp, unsigned opmode)
{ {
u32 topmode = ULPI_FC_OPMODE_NORMAL; u32 topmode = ULPI_FC_OPMODE_NORMAL;
u32 val; u32 val;
@ -144,17 +145,17 @@ int ulpi_opmode_sel(u32 ulpi_viewport, unsigned opmode)
"falling back to OpMode Normal\n", __func__, opmode); "falling back to OpMode Normal\n", __func__, opmode);
} }
val = ulpi_read(ulpi_viewport, &ulpi->function_ctrl); val = ulpi_read(ulpi_vp, &ulpi->function_ctrl);
if (val == ULPI_ERROR) if (val == ULPI_ERROR)
return val; return val;
/* clear the previous opmode setting */ /* clear the previous opmode setting */
val = (val & ~ULPI_FC_OPMODE_MASK) | topmode; val = (val & ~ULPI_FC_OPMODE_MASK) | topmode;
return ulpi_write(ulpi_viewport, &ulpi->function_ctrl, val); return ulpi_write(ulpi_vp, &ulpi->function_ctrl, val);
} }
int ulpi_serial_mode_enable(u32 ulpi_viewport, unsigned smode) int ulpi_serial_mode_enable(struct ulpi_viewport *ulpi_vp, unsigned smode)
{ {
switch (smode) { switch (smode) {
case ULPI_IFACE_6_PIN_SERIAL_MODE: case ULPI_IFACE_6_PIN_SERIAL_MODE:
@ -166,14 +167,14 @@ int ulpi_serial_mode_enable(u32 ulpi_viewport, unsigned smode)
return ULPI_ERROR; return ULPI_ERROR;
} }
return ulpi_write(ulpi_viewport, &ulpi->iface_ctrl_set, smode); return ulpi_write(ulpi_vp, &ulpi->iface_ctrl_set, smode);
} }
int ulpi_suspend(u32 ulpi_viewport) int ulpi_suspend(struct ulpi_viewport *ulpi_vp)
{ {
int err; int err;
err = ulpi_write(ulpi_viewport, &ulpi->function_ctrl_clear, err = ulpi_write(ulpi_vp, &ulpi->function_ctrl_clear,
ULPI_FC_SUSPENDM); ULPI_FC_SUSPENDM);
if (err) if (err)
printf("ULPI: %s: failed writing the suspend bit\n", __func__); printf("ULPI: %s: failed writing the suspend bit\n", __func__);
@ -186,7 +187,7 @@ int ulpi_suspend(u32 ulpi_viewport)
* Actual wait for reset must be done in a view port specific way, * Actual wait for reset must be done in a view port specific way,
* because it involves checking the DIR line. * because it involves checking the DIR line.
*/ */
static int __ulpi_reset_wait(u32 ulpi_viewport) static int __ulpi_reset_wait(struct ulpi_viewport *ulpi_vp)
{ {
u32 val; u32 val;
int timeout = CONFIG_USB_ULPI_TIMEOUT; int timeout = CONFIG_USB_ULPI_TIMEOUT;
@ -199,7 +200,7 @@ static int __ulpi_reset_wait(u32 ulpi_viewport)
* for the error of ulpi_read(), if there is one, then * for the error of ulpi_read(), if there is one, then
* there will be a timeout. * there will be a timeout.
*/ */
val = ulpi_read(ulpi_viewport, &ulpi->function_ctrl); val = ulpi_read(ulpi_vp, &ulpi->function_ctrl);
if (!(val & ULPI_FC_RESET)) if (!(val & ULPI_FC_RESET))
return 0; return 0;
@ -210,18 +211,19 @@ static int __ulpi_reset_wait(u32 ulpi_viewport)
return ULPI_ERROR; return ULPI_ERROR;
} }
int ulpi_reset_wait(u32) __attribute__((weak, alias("__ulpi_reset_wait"))); int ulpi_reset_wait(struct ulpi_viewport *ulpi_vp)
__attribute__((weak, alias("__ulpi_reset_wait")));
int ulpi_reset(u32 ulpi_viewport) int ulpi_reset(struct ulpi_viewport *ulpi_vp)
{ {
int err; int err;
err = ulpi_write(ulpi_viewport, err = ulpi_write(ulpi_vp,
&ulpi->function_ctrl_set, ULPI_FC_RESET); &ulpi->function_ctrl_set, ULPI_FC_RESET);
if (err) { if (err) {
printf("ULPI: %s: failed writing reset bit\n", __func__); printf("ULPI: %s: failed writing reset bit\n", __func__);
return err; return err;
} }
return ulpi_reset_wait(ulpi_viewport); return ulpi_reset_wait(ulpi_vp);
} }

36
include/usb/ulpi.h
View File

@ -27,13 +27,24 @@
#define CONFIG_USB_ULPI_TIMEOUT 1000 /* timeout in us */ #define CONFIG_USB_ULPI_TIMEOUT 1000 /* timeout in us */
#endif #endif
/*
* ulpi view port address and
* Port_number that can be passed.
* Any additional data to be passed can
* be extended from this structure
*/
struct ulpi_viewport {
u32 viewport_addr;
u32 port_num;
};
/* /*
* Initialize the ULPI transciever and check the interface integrity. * Initialize the ULPI transciever and check the interface integrity.
* @ulpi_viewport - the address of the ULPI viewport register. * @ulpi_vp - structure containing ULPI viewport data
* *
* returns 0 on success, ULPI_ERROR on failure. * returns 0 on success, ULPI_ERROR on failure.
*/ */
int ulpi_init(u32 ulpi_viewport); int ulpi_init(struct ulpi_viewport *ulpi_vp);
/* /*
* Select transceiver speed. * Select transceiver speed.
@ -41,7 +52,7 @@ int ulpi_init(u32 ulpi_viewport);
* ULPI_FC_LOW_SPEED, ULPI_FC_FS4LS * ULPI_FC_LOW_SPEED, ULPI_FC_FS4LS
* returns 0 on success, ULPI_ERROR on failure. * returns 0 on success, ULPI_ERROR on failure.
*/ */
int ulpi_select_transceiver(u32 ulpi_viewport, unsigned speed); int ulpi_select_transceiver(struct ulpi_viewport *ulpi_vp, unsigned speed);
/* /*
* Enable/disable VBUS. * Enable/disable VBUS.
@ -50,14 +61,15 @@ int ulpi_select_transceiver(u32 ulpi_viewport, unsigned speed);
* *
* returns 0 on success, ULPI_ERROR on failure. * returns 0 on success, ULPI_ERROR on failure.
*/ */
int ulpi_enable_vbus(u32 ulpi_viewport, int on, int ext_power, int ext_ind); int ulpi_enable_vbus(struct ulpi_viewport *ulpi_vp,
int on, int ext_power, int ext_ind);
/* /*
* Enable/disable pull-down resistors on D+ and D- USB lines. * Enable/disable pull-down resistors on D+ and D- USB lines.
* *
* returns 0 on success, ULPI_ERROR on failure. * returns 0 on success, ULPI_ERROR on failure.
*/ */
int ulpi_set_pd(u32 ulpi_viewport, int enable); int ulpi_set_pd(struct ulpi_viewport *ulpi_vp, int enable);
/* /*
* Select OpMode. * Select OpMode.
@ -66,7 +78,7 @@ int ulpi_set_pd(u32 ulpi_viewport, int enable);
* *
* returns 0 on success, ULPI_ERROR on failure. * returns 0 on success, ULPI_ERROR on failure.
*/ */
int ulpi_opmode_sel(u32 ulpi_viewport, unsigned opmode); int ulpi_opmode_sel(struct ulpi_viewport *ulpi_vp, unsigned opmode);
/* /*
* Switch to Serial Mode. * Switch to Serial Mode.
@ -78,7 +90,7 @@ int ulpi_opmode_sel(u32 ulpi_viewport, unsigned opmode);
* Switches immediately to Serial Mode. * Switches immediately to Serial Mode.
* To return from Serial Mode, STP line needs to be asserted. * To return from Serial Mode, STP line needs to be asserted.
*/ */
int ulpi_serial_mode_enable(u32 ulpi_viewport, unsigned smode); int ulpi_serial_mode_enable(struct ulpi_viewport *ulpi_vp, unsigned smode);
/* /*
* Put PHY into low power mode. * Put PHY into low power mode.
@ -89,14 +101,14 @@ int ulpi_serial_mode_enable(u32 ulpi_viewport, unsigned smode);
* STP line must be driven low to keep the PHY in suspend. * STP line must be driven low to keep the PHY in suspend.
* To resume the PHY, STP line needs to be asserted. * To resume the PHY, STP line needs to be asserted.
*/ */
int ulpi_suspend(u32 ulpi_viewport); int ulpi_suspend(struct ulpi_viewport *ulpi_vp);
/* /*
* Reset the transceiver. ULPI interface and registers are not affected. * Reset the transceiver. ULPI interface and registers are not affected.
* *
* returns 0 on success, ULPI_ERROR on failure. * returns 0 on success, ULPI_ERROR on failure.
*/ */
int ulpi_reset(u32 ulpi_viewport); int ulpi_reset(struct ulpi_viewport *ulpi_vp);
/* ULPI access methods below must be implemented for each ULPI viewport. */ /* ULPI access methods below must be implemented for each ULPI viewport. */
@ -108,7 +120,7 @@ int ulpi_reset(u32 ulpi_viewport);
* *
* returns 0 on success, ULPI_ERROR on failure. * returns 0 on success, ULPI_ERROR on failure.
*/ */
int ulpi_write(u32 ulpi_viewport, u8 *reg, u32 value); int ulpi_write(struct ulpi_viewport *ulpi_vp, u8 *reg, u32 value);
/* /*
* Read the ULPI PHY register content via the viewport. * Read the ULPI PHY register content via the viewport.
@ -116,14 +128,14 @@ int ulpi_write(u32 ulpi_viewport, u8 *reg, u32 value);
* *
* returns register content on success, ULPI_ERROR on failure. * returns register content on success, ULPI_ERROR on failure.
*/ */
u32 ulpi_read(u32 ulpi_viewport, u8 *reg); u32 ulpi_read(struct ulpi_viewport *ulpi_vp, u8 *reg);
/* /*
* Wait for the reset to complete. * Wait for the reset to complete.
* The Link must not attempt to access the PHY until the reset has * The Link must not attempt to access the PHY until the reset has
* completed and DIR line is de-asserted. * completed and DIR line is de-asserted.
*/ */
int ulpi_reset_wait(u32 ulpi_viewport); int ulpi_reset_wait(struct ulpi_viewport *ulpi_vp);
/* Access Extended Register Set (indicator) */ /* Access Extended Register Set (indicator) */
#define ACCESS_EXT_REGS_OFFSET 0x2f /* read-write */ #define ACCESS_EXT_REGS_OFFSET 0x2f /* read-write */