* Some code has been taken from tusb6010.c
* Copyrights for that are attributable to:
* Copyright (C) 2006 Nokia Corporation
- * Jarkko Nikula <jarkko.nikula@nokia.com>
* Tony Lindgren <tony@atomide.com>
*
* This file is part of the Inventra Controller Driver for Linux.
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
-#include <linux/slab.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/clk.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
-#include <mach/mux.h>
+#include <plat/mux.h>
#include "musb_core.h"
#include "omap2430.h"
#define get_cpu_rev() 2
#endif
-#define MUSB_TIMEOUT_A_WAIT_BCON 1100
static struct timer_list musb_idle_timer;
#endif
u8 devctl;
- devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
-
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv.state) {
+ devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+
+ 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;
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
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;
/* 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;
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);
* 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);
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);
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;
}
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);
+ l = musb_readl(musb->mregs, OTG_SYSCONFIG);
l &= ~ENABLEWAKEUP; /* disable wakeup */
l &= ~NOSTDBY; /* remove possible nostdby */
l |= SMARTSTDBY; /* enable smart standby */
l &= ~AUTOIDLE; /* disable auto idle */
l &= ~NOIDLE; /* remove possible noidle */
l |= SMARTIDLE; /* enable smart idle */
- l |= AUTOIDLE; /* enable auto idle */
- omap_writel(l, OTG_SYSCONFIG);
+ /*
+ * MUSB AUTOIDLE don't work in 3430.
+ * Workaround by Richard Woodruff/TI
+ */
+ if (!cpu_is_omap3430())
+ l |= AUTOIDLE; /* enable auto idle */
+ musb_writel(musb->mregs, OTG_SYSCONFIG, l);
- l = omap_readl(OTG_INTERFSEL);
+ l = musb_readl(musb->mregs, OTG_INTERFSEL);
l |= ULPI_12PIN;
- omap_writel(l, OTG_INTERFSEL);
+ musb_writel(musb->mregs, OTG_INTERFSEL, l);
pr_debug("HS USB OTG: revision 0x%x, sysconfig 0x%02x, "
"sysstatus 0x%x, intrfsel 0x%x, simenable 0x%x\n",
- omap_readl(OTG_REVISION), omap_readl(OTG_SYSCONFIG),
- omap_readl(OTG_SYSSTATUS), omap_readl(OTG_INTERFSEL),
- omap_readl(OTG_SIMENABLE));
+ musb_readl(musb->mregs, OTG_REVISION),
+ musb_readl(musb->mregs, OTG_SYSCONFIG),
+ musb_readl(musb->mregs, OTG_SYSSTATUS),
+ musb_readl(musb->mregs, OTG_INTERFSEL),
+ musb_readl(musb->mregs, OTG_SIMENABLE));
omap_vbus_power(musb, musb->board_mode == MUSB_HOST, 1);
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);
return 0;
}
+#ifdef CONFIG_PM
+void musb_platform_save_context(struct musb *musb,
+ struct musb_context_registers *musb_context)
+{
+ musb_context->otg_sysconfig = musb_readl(musb->mregs, OTG_SYSCONFIG);
+ musb_context->otg_forcestandby = musb_readl(musb->mregs, OTG_FORCESTDBY);
+}
+
+void musb_platform_restore_context(struct musb *musb,
+ struct musb_context_registers *musb_context)
+{
+ musb_writel(musb->mregs, OTG_SYSCONFIG, musb_context->otg_sysconfig);
+ musb_writel(musb->mregs, OTG_FORCESTDBY, musb_context->otg_forcestandby);
+}
+#endif
+
int musb_platform_suspend(struct musb *musb)
{
u32 l;
return 0;
/* in any role */
- l = omap_readl(OTG_FORCESTDBY);
+ l = musb_readl(musb->mregs, OTG_FORCESTDBY);
l |= ENABLEFORCE; /* enable MSTANDBY */
- omap_writel(l, OTG_FORCESTDBY);
+ musb_writel(musb->mregs, OTG_FORCESTDBY, l);
- l = omap_readl(OTG_SYSCONFIG);
+ l = musb_readl(musb->mregs, OTG_SYSCONFIG);
l |= ENABLEWAKEUP; /* enable wakeup */
- omap_writel(l, OTG_SYSCONFIG);
+ musb_writel(musb->mregs, OTG_SYSCONFIG, l);
- 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);
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);
else
clk_enable(musb->clock);
- l = omap_readl(OTG_SYSCONFIG);
+ l = musb_readl(musb->mregs, OTG_SYSCONFIG);
l &= ~ENABLEWAKEUP; /* disable wakeup */
- omap_writel(l, OTG_SYSCONFIG);
+ musb_writel(musb->mregs, OTG_SYSCONFIG, l);
- l = omap_readl(OTG_FORCESTDBY);
+ l = musb_readl(musb->mregs, OTG_FORCESTDBY);
l &= ~ENABLEFORCE; /* disable MSTANDBY */
- omap_writel(l, OTG_FORCESTDBY);
+ musb_writel(musb->mregs, OTG_FORCESTDBY, l);
return 0;
}
musb_platform_suspend(musb);
clk_put(musb->clock);
- musb->clock = 0;
+ musb->clock = NULL;
return 0;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff