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path: root/drivers/usb/musb/omap2430.c
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Diffstat (limited to 'drivers/usb/musb/omap2430.c')
-rw-r--r--drivers/usb/musb/omap2430.c71
1 files changed, 29 insertions, 42 deletions
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 60924ce0849..34875201ee0 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -44,7 +44,6 @@
#define get_cpu_rev() 2
#endif
-#define MUSB_TIMEOUT_A_WAIT_BCON 1100
static struct timer_list musb_idle_timer;
@@ -61,17 +60,17 @@ static void musb_do_idle(unsigned long _musb)
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
- switch (musb->xceiv.state) {
+ switch (musb->xceiv->state) {
case OTG_STATE_A_WAIT_BCON:
devctl &= ~MUSB_DEVCTL_SESSION;
musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE) {
- musb->xceiv.state = OTG_STATE_B_IDLE;
+ musb->xceiv->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(musb);
} else {
- musb->xceiv.state = OTG_STATE_A_IDLE;
+ musb->xceiv->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
}
break;
@@ -89,7 +88,7 @@ static void musb_do_idle(unsigned long _musb)
musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16;
usb_hcd_poll_rh_status(musb_to_hcd(musb));
/* NOTE: it might really be A_WAIT_BCON ... */
- musb->xceiv.state = OTG_STATE_A_HOST;
+ musb->xceiv->state = OTG_STATE_A_HOST;
}
break;
#endif
@@ -97,9 +96,9 @@ static void musb_do_idle(unsigned long _musb)
case OTG_STATE_A_HOST:
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE)
- musb->xceiv.state = OTG_STATE_B_IDLE;
+ musb->xceiv->state = OTG_STATE_B_IDLE;
else
- musb->xceiv.state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
#endif
default:
break;
@@ -118,7 +117,7 @@ void musb_platform_try_idle(struct musb *musb, unsigned long timeout)
/* Never idle if active, or when VBUS timeout is not set as host */
if (musb->is_active || ((musb->a_wait_bcon == 0)
- && (musb->xceiv.state == OTG_STATE_A_WAIT_BCON))) {
+ && (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) {
DBG(4, "%s active, deleting timer\n", otg_state_string(musb));
del_timer(&musb_idle_timer);
last_timer = jiffies;
@@ -163,8 +162,8 @@ static void omap_set_vbus(struct musb *musb, int is_on)
if (is_on) {
musb->is_active = 1;
- musb->xceiv.default_a = 1;
- musb->xceiv.state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->default_a = 1;
+ musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
devctl |= MUSB_DEVCTL_SESSION;
MUSB_HST_MODE(musb);
@@ -175,8 +174,8 @@ static void omap_set_vbus(struct musb *musb, int is_on)
* jumping right to B_IDLE...
*/
- musb->xceiv.default_a = 0;
- musb->xceiv.state = OTG_STATE_B_IDLE;
+ musb->xceiv->default_a = 0;
+ musb->xceiv->state = OTG_STATE_B_IDLE;
devctl &= ~MUSB_DEVCTL_SESSION;
MUSB_DEV_MODE(musb);
@@ -188,10 +187,6 @@ static void omap_set_vbus(struct musb *musb, int is_on)
otg_state_string(musb),
musb_readb(musb->mregs, MUSB_DEVCTL));
}
-static int omap_set_power(struct otg_transceiver *x, unsigned mA)
-{
- return 0;
-}
static int musb_platform_resume(struct musb *musb);
@@ -202,24 +197,6 @@ int musb_platform_set_mode(struct musb *musb, u8 musb_mode)
devctl |= MUSB_DEVCTL_SESSION;
musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
- switch (musb_mode) {
-#ifdef CONFIG_USB_MUSB_HDRC_HCD
- case MUSB_HOST:
- otg_set_host(&musb->xceiv, musb->xceiv.host);
- break;
-#endif
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
- case MUSB_PERIPHERAL:
- otg_set_peripheral(&musb->xceiv, musb->xceiv.gadget);
- break;
-#endif
-#ifdef CONFIG_USB_MUSB_OTG
- case MUSB_OTG:
- break;
-#endif
- default:
- return -EINVAL;
- }
return 0;
}
@@ -231,6 +208,16 @@ int __init musb_platform_init(struct musb *musb)
omap_cfg_reg(AE5_2430_USB0HS_STP);
#endif
+ /* We require some kind of external transceiver, hooked
+ * up through ULPI. TWL4030-family PMICs include one,
+ * which needs a driver, drivers aren't always needed.
+ */
+ musb->xceiv = otg_get_transceiver();
+ if (!musb->xceiv) {
+ pr_err("HS USB OTG: no transceiver configured\n");
+ return -ENODEV;
+ }
+
musb_platform_resume(musb);
l = omap_readl(OTG_SYSCONFIG);
@@ -240,7 +227,12 @@ int __init musb_platform_init(struct musb *musb)
l &= ~AUTOIDLE; /* disable auto idle */
l &= ~NOIDLE; /* remove possible noidle */
l |= SMARTIDLE; /* enable smart idle */
- l |= AUTOIDLE; /* enable auto idle */
+ /*
+ * MUSB AUTOIDLE don't work in 3430.
+ * Workaround by Richard Woodruff/TI
+ */
+ if (!cpu_is_omap3430())
+ l |= AUTOIDLE; /* enable auto idle */
omap_writel(l, OTG_SYSCONFIG);
l = omap_readl(OTG_INTERFSEL);
@@ -257,9 +249,6 @@ int __init musb_platform_init(struct musb *musb)
if (is_host_enabled(musb))
musb->board_set_vbus = omap_set_vbus;
- if (is_peripheral_enabled(musb))
- musb->xceiv.set_power = omap_set_power;
- musb->a_wait_bcon = MUSB_TIMEOUT_A_WAIT_BCON;
setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
@@ -282,8 +271,7 @@ int musb_platform_suspend(struct musb *musb)
l |= ENABLEWAKEUP; /* enable wakeup */
omap_writel(l, OTG_SYSCONFIG);
- if (musb->xceiv.set_suspend)
- musb->xceiv.set_suspend(&musb->xceiv, 1);
+ otg_set_suspend(musb->xceiv, 1);
if (musb->set_clock)
musb->set_clock(musb->clock, 0);
@@ -300,8 +288,7 @@ static int musb_platform_resume(struct musb *musb)
if (!musb->clock)
return 0;
- if (musb->xceiv.set_suspend)
- musb->xceiv.set_suspend(&musb->xceiv, 0);
+ otg_set_suspend(musb->xceiv, 0);
if (musb->set_clock)
musb->set_clock(musb->clock, 1);
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-17 20:12:38 +0000