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path: root/drivers/usb/musb
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-rw-r--r--drivers/usb/musb/Kconfig5
-rw-r--r--drivers/usb/musb/am35x.c32
-rw-r--r--drivers/usb/musb/blackfin.c74
-rw-r--r--drivers/usb/musb/da8xx.c30
-rw-r--r--drivers/usb/musb/davinci.c22
-rw-r--r--drivers/usb/musb/jz4740.c2
-rw-r--r--drivers/usb/musb/musb_core.c336
-rw-r--r--drivers/usb/musb/musb_core.h87
-rw-r--r--drivers/usb/musb/musb_cppi41.c10
-rw-r--r--drivers/usb/musb/musb_debugfs.c57
-rw-r--r--drivers/usb/musb/musb_dsps.c37
-rw-r--r--drivers/usb/musb/musb_gadget.c58
-rw-r--r--drivers/usb/musb/musb_host.c8
-rw-r--r--drivers/usb/musb/musb_io.h106
-rw-r--r--drivers/usb/musb/musb_regs.h26
-rw-r--r--drivers/usb/musb/musb_virthub.c23
-rw-r--r--drivers/usb/musb/musbhsdma.c7
-rw-r--r--drivers/usb/musb/omap2430.c52
-rw-r--r--drivers/usb/musb/tusb6010.c102
-rw-r--r--drivers/usb/musb/ux500.c16
-rw-r--r--drivers/usb/musb/ux500_dma.c11
21 files changed, 632 insertions, 469 deletions
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 06cc5d6ea681..9d68372dd9aa 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -58,8 +58,7 @@ config USB_MUSB_DUAL_ROLE
endchoice
-choice
- prompt "Platform Glue Layer"
+comment "Platform Glue Layer"
config USB_MUSB_DAVINCI
tristate "DaVinci"
@@ -101,8 +100,6 @@ config USB_MUSB_JZ4740
depends on USB_MUSB_GADGET
depends on USB_OTG_BLACKLIST_HUB
-endchoice
-
config USB_MUSB_AM335X_CHILD
tristate
diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
index a2735df24cc6..220fd4d3b41c 100644
--- a/drivers/usb/musb/am35x.c
+++ b/drivers/usb/musb/am35x.c
@@ -149,25 +149,25 @@ static void otg_timer(unsigned long _musb)
*/
devctl = musb_readb(mregs, MUSB_DEVCTL);
dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl,
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->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->otg->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(musb);
} else {
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
}
break;
case OTG_STATE_A_WAIT_VFALL:
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
musb_writel(musb->ctrl_base, CORE_INTR_SRC_SET_REG,
MUSB_INTR_VBUSERROR << AM35X_INTR_USB_SHIFT);
break;
@@ -176,7 +176,7 @@ static void otg_timer(unsigned long _musb)
if (devctl & MUSB_DEVCTL_BDEVICE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
else
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
break;
default:
break;
@@ -193,9 +193,9 @@ static void am35x_musb_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->otg->state == OTG_STATE_A_WAIT_BCON)) {
dev_dbg(musb->controller, "%s active, deleting timer\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
del_timer(&otg_workaround);
last_timer = jiffies;
return;
@@ -208,7 +208,7 @@ static void am35x_musb_try_idle(struct musb *musb, unsigned long timeout)
last_timer = timeout;
dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
jiffies_to_msecs(timeout - jiffies));
mod_timer(&otg_workaround, timeout);
}
@@ -278,27 +278,27 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
* devctl.
*/
musb->int_usb &= ~MUSB_INTR_VBUSERROR;
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
portstate(musb->port1_status |= USB_PORT_STAT_POWER);
del_timer(&otg_workaround);
} else {
musb->is_active = 0;
MUSB_DEV_MODE(musb);
otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
}
/* NOTE: this must complete power-on within 100 ms. */
dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
drvvbus ? "on" : "off",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
err ? " ERROR" : "",
devctl);
ret = IRQ_HANDLED;
@@ -324,7 +324,7 @@ eoi:
}
/* Poll for ID change */
- if (musb->xceiv->state == OTG_STATE_B_IDLE)
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
@@ -408,7 +408,7 @@ static int am35x_musb_exit(struct musb *musb)
}
/* AM35x supports only 32bit read operation */
-void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
+static void am35x_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
{
void __iomem *fifo = hw_ep->fifo;
u32 val;
@@ -438,9 +438,11 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
}
static const struct musb_platform_ops am35x_ops = {
+ .quirks = MUSB_INDEXED_EP,
.init = am35x_musb_init,
.exit = am35x_musb_exit,
+ .read_fifo = am35x_read_fifo,
.enable = am35x_musb_enable,
.disable = am35x_musb_disable,
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index ac4422b33dcd..a441a2de8619 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -33,10 +33,45 @@ struct bfin_glue {
};
#define glue_to_musb(g) platform_get_drvdata(g->musb)
+static u32 bfin_fifo_offset(u8 epnum)
+{
+ return USB_OFFSET(USB_EP0_FIFO) + (epnum * 8);
+}
+
+static u8 bfin_readb(const void __iomem *addr, unsigned offset)
+{
+ return (u8)(bfin_read16(addr + offset));
+}
+
+static u16 bfin_readw(const void __iomem *addr, unsigned offset)
+{
+ return bfin_read16(addr + offset);
+}
+
+static u32 bfin_readl(const void __iomem *addr, unsigned offset)
+{
+ return (u32)(bfin_read16(addr + offset));
+}
+
+static void bfin_writeb(void __iomem *addr, unsigned offset, u8 data)
+{
+ bfin_write16(addr + offset, (u16)data);
+}
+
+static void bfin_writew(void __iomem *addr, unsigned offset, u16 data)
+{
+ bfin_write16(addr + offset, data);
+}
+
+static void binf_writel(void __iomem *addr, unsigned offset, u32 data)
+{
+ bfin_write16(addr + offset, (u16)data);
+}
+
/*
* Load an endpoint's FIFO
*/
-void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
+static void bfin_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
{
struct musb *musb = hw_ep->musb;
void __iomem *fifo = hw_ep->fifo;
@@ -100,7 +135,7 @@ void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
/*
* Unload an endpoint's FIFO
*/
-void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
+static void bfin_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
{
struct musb *musb = hw_ep->musb;
void __iomem *fifo = hw_ep->fifo;
@@ -185,8 +220,8 @@ static irqreturn_t blackfin_interrupt(int irq, void *__hci)
}
/* Start sampling ID pin, when plug is removed from MUSB */
- if ((musb->xceiv->state == OTG_STATE_B_IDLE
- || musb->xceiv->state == OTG_STATE_A_WAIT_BCON) ||
+ if ((musb->xceiv->otg->state == OTG_STATE_B_IDLE
+ || musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON) ||
(musb->int_usb & MUSB_INTR_DISCONNECT && is_host_active(musb))) {
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
musb->a_wait_bcon = TIMER_DELAY;
@@ -205,7 +240,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
static u8 toggle;
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_IDLE:
case OTG_STATE_A_WAIT_BCON:
/* Start a new session */
@@ -219,7 +254,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
if (!(val & MUSB_DEVCTL_BDEVICE)) {
gpio_set_value(musb->config->gpio_vrsel, 1);
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
} else {
gpio_set_value(musb->config->gpio_vrsel, 0);
/* Ignore VBUSERROR and SUSPEND IRQ */
@@ -229,7 +264,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
val = MUSB_INTR_SUSPEND | MUSB_INTR_VBUSERROR;
musb_writeb(musb->mregs, MUSB_INTRUSB, val);
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
}
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
break;
@@ -245,7 +280,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
if (!(val & MUSB_DEVCTL_BDEVICE)) {
gpio_set_value(musb->config->gpio_vrsel, 1);
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
} else {
gpio_set_value(musb->config->gpio_vrsel, 0);
@@ -280,13 +315,13 @@ static void musb_conn_timer_handler(unsigned long _musb)
break;
default:
dev_dbg(musb->controller, "%s state not handled\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
break;
}
spin_unlock_irqrestore(&musb->lock, flags);
dev_dbg(musb->controller, "state is %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
static void bfin_musb_enable(struct musb *musb)
@@ -307,7 +342,7 @@ static void bfin_musb_set_vbus(struct musb *musb, int is_on)
dev_dbg(musb->controller, "VBUS %s, devctl %02x "
/* otg %3x conf %08x prcm %08x */ "\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
musb_readb(musb->mregs, MUSB_DEVCTL));
}
@@ -433,6 +468,15 @@ static const struct musb_platform_ops bfin_ops = {
.init = bfin_musb_init,
.exit = bfin_musb_exit,
+ .readb = bfin_readb,
+ .writeb = bfin_writeb,
+ .readw = bfin_readw,
+ .writew = bfin_writew,
+ .readl = bfin_readl,
+ .writel = bfin_writel,
+ .fifo_mode = 2,
+ .read_fifo = bfin_read_fifo,
+ .write_fifo = bfin_write_fifo,
.enable = bfin_musb_enable,
.disable = bfin_musb_disable,
@@ -456,16 +500,12 @@ static int bfin_probe(struct platform_device *pdev)
int ret = -ENOMEM;
glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
- if (!glue) {
- dev_err(&pdev->dev, "failed to allocate glue context\n");
+ if (!glue)
goto err0;
- }
musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
- if (!musb) {
- dev_err(&pdev->dev, "failed to allocate musb device\n");
+ if (!musb)
goto err0;
- }
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &bfin_dmamask;
diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index 058775e647ad..9a9c82a4d35d 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -198,20 +198,20 @@ static void otg_timer(unsigned long _musb)
*/
devctl = musb_readb(mregs, MUSB_DEVCTL);
dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl,
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->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->otg->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(musb);
} else {
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
}
break;
@@ -226,7 +226,7 @@ static void otg_timer(unsigned long _musb)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
break;
}
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
musb_writel(musb->ctrl_base, DA8XX_USB_INTR_SRC_SET_REG,
MUSB_INTR_VBUSERROR << DA8XX_INTR_USB_SHIFT);
break;
@@ -248,7 +248,7 @@ static void otg_timer(unsigned long _musb)
if (devctl & MUSB_DEVCTL_BDEVICE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
else
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
break;
default:
break;
@@ -265,9 +265,9 @@ static void da8xx_musb_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->otg->state == OTG_STATE_A_WAIT_BCON)) {
dev_dbg(musb->controller, "%s active, deleting timer\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
del_timer(&otg_workaround);
last_timer = jiffies;
return;
@@ -280,7 +280,7 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout)
last_timer = timeout;
dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
jiffies_to_msecs(timeout - jiffies));
mod_timer(&otg_workaround, timeout);
}
@@ -341,26 +341,26 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
* devctl.
*/
musb->int_usb &= ~MUSB_INTR_VBUSERROR;
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
portstate(musb->port1_status |= USB_PORT_STAT_POWER);
del_timer(&otg_workaround);
} else {
musb->is_active = 0;
MUSB_DEV_MODE(musb);
otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
}
dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
drvvbus ? "on" : "off",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
err ? " ERROR" : "",
devctl);
ret = IRQ_HANDLED;
@@ -375,7 +375,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
musb_writel(reg_base, DA8XX_USB_END_OF_INTR_REG, 0);
/* Poll for ID change */
- if (musb->xceiv->state == OTG_STATE_B_IDLE)
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
@@ -458,9 +458,11 @@ static int da8xx_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops da8xx_ops = {
+ .quirks = MUSB_INDEXED_EP,
.init = da8xx_musb_init,
.exit = da8xx_musb_exit,
+ .fifo_mode = 2,
.enable = da8xx_musb_enable,
.disable = da8xx_musb_disable,
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index 110b78415bf0..3c1d9b211b51 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -214,10 +214,10 @@ static void otg_timer(unsigned long _musb)
*/
devctl = musb_readb(mregs, MUSB_DEVCTL);
dev_dbg(musb->controller, "poll devctl %02x (%s)\n", devctl,
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_VFALL:
/* Wait till VBUS falls below SessionEnd (~0.2V); the 1.3 RTL
* seems to mis-handle session "start" otherwise (or in our
@@ -228,7 +228,7 @@ static void otg_timer(unsigned long _musb)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
break;
}
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
MUSB_INTR_VBUSERROR << DAVINCI_USB_USBINT_SHIFT);
break;
@@ -251,7 +251,7 @@ static void otg_timer(unsigned long _musb)
if (devctl & MUSB_DEVCTL_BDEVICE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
else
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
break;
default:
break;
@@ -325,20 +325,20 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
* to stop registering in devctl.
*/
musb->int_usb &= ~MUSB_INTR_VBUSERROR;
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
portstate(musb->port1_status |= USB_PORT_STAT_POWER);
del_timer(&otg_workaround);
} else {
musb->is_active = 0;
MUSB_DEV_MODE(musb);
otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
}
@@ -348,7 +348,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
davinci_musb_source_power(musb, drvvbus, 0);
dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
drvvbus ? "on" : "off",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
err ? " ERROR" : "",
devctl);
retval = IRQ_HANDLED;
@@ -361,7 +361,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
musb_writel(tibase, DAVINCI_USB_EOI_REG, 0);
/* poll for ID change */
- if (musb->xceiv->state == OTG_STATE_B_IDLE)
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
@@ -520,10 +520,8 @@ static int davinci_probe(struct platform_device *pdev)
int ret = -ENOMEM;
glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
- if (!glue) {
- dev_err(&pdev->dev, "failed to allocate glue context\n");
+ if (!glue)
goto err0;
- }
clk = devm_clk_get(&pdev->dev, "usb");
if (IS_ERR(clk)) {
diff --git a/drivers/usb/musb/jz4740.c b/drivers/usb/musb/jz4740.c
index d1187290d4e3..bb7b26325a74 100644
--- a/drivers/usb/musb/jz4740.c
+++ b/drivers/usb/musb/jz4740.c
@@ -106,6 +106,8 @@ static int jz4740_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops jz4740_musb_ops = {
+ .quirks = MUSB_INDEXED_EP,
+ .fifo_mode = 2,
.init = jz4740_musb_init,
.exit = jz4740_musb_exit,
};
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index b841ee0bff06..34cce3e38c49 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -224,12 +224,67 @@ static struct usb_phy_io_ops musb_ulpi_access = {
/*-------------------------------------------------------------------------*/
-#if !defined(CONFIG_USB_MUSB_TUSB6010) && !defined(CONFIG_USB_MUSB_BLACKFIN)
+static u32 musb_default_fifo_offset(u8 epnum)
+{
+ return 0x20 + (epnum * 4);
+}
+
+/* "flat" mapping: each endpoint has its own i/o address */
+static void musb_flat_ep_select(void __iomem *mbase, u8 epnum)
+{
+}
+
+static u32 musb_flat_ep_offset(u8 epnum, u16 offset)
+{
+ return 0x100 + (0x10 * epnum) + offset;
+}
+
+/* "indexed" mapping: INDEX register controls register bank select */
+static void musb_indexed_ep_select(void __iomem *mbase, u8 epnum)
+{
+ musb_writeb(mbase, MUSB_INDEX, epnum);
+}
+
+static u32 musb_indexed_ep_offset(u8 epnum, u16 offset)
+{
+ return 0x10 + offset;
+}
+
+static u8 musb_default_readb(const void __iomem *addr, unsigned offset)
+{
+ return __raw_readb(addr + offset);
+}
+
+static void musb_default_writeb(void __iomem *addr, unsigned offset, u8 data)
+{
+ __raw_writeb(data, addr + offset);
+}
+
+static u16 musb_default_readw(const void __iomem *addr, unsigned offset)
+{
+ return __raw_readw(addr + offset);
+}
+
+static void musb_default_writew(void __iomem *addr, unsigned offset, u16 data)
+{
+ __raw_writew(data, addr + offset);
+}
+
+static u32 musb_default_readl(const void __iomem *addr, unsigned offset)
+{
+ return __raw_readl(addr + offset);
+}
+
+static void musb_default_writel(void __iomem *addr, unsigned offset, u32 data)
+{
+ __raw_writel(data, addr + offset);
+}
/*
* Load an endpoint's FIFO
*/
-void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
+static void musb_default_write_fifo(struct musb_hw_ep *hw_ep, u16 len,
+ const u8 *src)
{
struct musb *musb = hw_ep->musb;
void __iomem *fifo = hw_ep->fifo;
@@ -270,11 +325,10 @@ void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
}
}
-#if !defined(CONFIG_USB_MUSB_AM35X)
/*
* Unload an endpoint's FIFO
*/
-void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
+static void musb_default_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
{
struct musb *musb = hw_ep->musb;
void __iomem *fifo = hw_ep->fifo;
@@ -312,10 +366,40 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
ioread8_rep(fifo, dst, len);
}
}
-#endif
-#endif /* normal PIO */
+/*
+ * Old style IO functions
+ */
+u8 (*musb_readb)(const void __iomem *addr, unsigned offset);
+EXPORT_SYMBOL_GPL(musb_readb);
+
+void (*musb_writeb)(void __iomem *addr, unsigned offset, u8 data);
+EXPORT_SYMBOL_GPL(musb_writeb);
+
+u16 (*musb_readw)(const void __iomem *addr, unsigned offset);
+EXPORT_SYMBOL_GPL(musb_readw);
+
+void (*musb_writew)(void __iomem *addr, unsigned offset, u16 data);
+EXPORT_SYMBOL_GPL(musb_writew);
+
+u32 (*musb_readl)(const void __iomem *addr, unsigned offset);
+EXPORT_SYMBOL_GPL(musb_readl);
+void (*musb_writel)(void __iomem *addr, unsigned offset, u32 data);
+EXPORT_SYMBOL_GPL(musb_writel);
+
+/*
+ * New style IO functions
+ */
+void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
+{
+ return hw_ep->musb->io.read_fifo(hw_ep, len, dst);
+}
+
+void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
+{
+ return hw_ep->musb->io.write_fifo(hw_ep, len, src);
+}
/*-------------------------------------------------------------------------*/
@@ -360,23 +444,23 @@ static void musb_otg_timer_func(unsigned long data)
unsigned long flags;
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_WAIT_ACON:
dev_dbg(musb->controller, "HNP: b_wait_acon timeout; back to b_peripheral\n");
musb_g_disconnect(musb);
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb->is_active = 0;
break;
case OTG_STATE_A_SUSPEND:
case OTG_STATE_A_WAIT_BCON:
dev_dbg(musb->controller, "HNP: %s timeout\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
musb_platform_set_vbus(musb, 0);
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
break;
default:
dev_dbg(musb->controller, "HNP: Unhandled mode %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
spin_unlock_irqrestore(&musb->lock, flags);
}
@@ -391,19 +475,19 @@ void musb_hnp_stop(struct musb *musb)
u8 reg;
dev_dbg(musb->controller, "HNP: stop from %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_PERIPHERAL:
musb_g_disconnect(musb);
dev_dbg(musb->controller, "HNP: back to %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
break;
case OTG_STATE_B_HOST:
dev_dbg(musb->controller, "HNP: Disabling HR\n");
if (hcd)
hcd->self.is_b_host = 0;
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
MUSB_DEV_MODE(musb);
reg = musb_readb(mbase, MUSB_POWER);
reg |= MUSB_POWER_SUSPENDM;
@@ -412,7 +496,7 @@ void musb_hnp_stop(struct musb *musb)
break;
default:
dev_dbg(musb->controller, "HNP: Stopping in unknown state %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
/*
@@ -423,6 +507,7 @@ void musb_hnp_stop(struct musb *musb)
musb->port1_status &= ~(USB_PORT_STAT_C_CONNECTION << 16);
}
+static void musb_generic_disable(struct musb *musb);
/*
* Interrupt Service Routine to record USB "global" interrupts.
* Since these do not happen often and signify things of
@@ -449,13 +534,13 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
*/
if (int_usb & MUSB_INTR_RESUME) {
handled = IRQ_HANDLED;
- dev_dbg(musb->controller, "RESUME (%s)\n", usb_otg_state_string(musb->xceiv->state));
+ dev_dbg(musb->controller, "RESUME (%s)\n", usb_otg_state_string(musb->xceiv->otg->state));
if (devctl & MUSB_DEVCTL_HM) {
void __iomem *mbase = musb->mregs;
u8 power;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_SUSPEND:
/* remote wakeup? later, GetPortStatus
* will stop RESUME signaling
@@ -478,29 +563,26 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
| MUSB_PORT_STAT_RESUME;
musb->rh_timer = jiffies
+ msecs_to_jiffies(20);
- schedule_delayed_work(
- &musb->finish_resume_work,
- msecs_to_jiffies(20));
+ musb->need_finish_resume = 1;
- musb->xceiv->state = OTG_STATE_A_HOST;
+ musb->xceiv->otg->state = OTG_STATE_A_HOST;
musb->is_active = 1;
- musb_host_resume_root_hub(musb);
break;
case OTG_STATE_B_WAIT_ACON:
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb->is_active = 1;
MUSB_DEV_MODE(musb);
break;
default:
WARNING("bogus %s RESUME (%s)\n",
"host",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
} else {
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_SUSPEND:
/* possibly DISCONNECT is upcoming */
- musb->xceiv->state = OTG_STATE_A_HOST;
+ musb->xceiv->otg->state = OTG_STATE_A_HOST;
musb_host_resume_root_hub(musb);
break;
case OTG_STATE_B_WAIT_ACON:
@@ -523,7 +605,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
default:
WARNING("bogus %s RESUME (%s)\n",
"peripheral",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
}
@@ -539,7 +621,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
}
dev_dbg(musb->controller, "SESSION_REQUEST (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
/* IRQ arrives from ID pin sense or (later, if VBUS power
* is removed) SRP. responses are time critical:
@@ -550,7 +632,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
*/
musb_writeb(mbase, MUSB_DEVCTL, MUSB_DEVCTL_SESSION);
musb->ep0_stage = MUSB_EP0_START;
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
musb_platform_set_vbus(musb, 1);
@@ -576,7 +658,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
* REVISIT: do delays from lots of DEBUG_KERNEL checks
* make trouble here, keeping VBUS < 4.4V ?
*/
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_HOST:
/* recovery is dicey once we've gotten past the
* initial stages of enumeration, but if VBUS
@@ -605,7 +687,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
dev_printk(ignore ? KERN_DEBUG : KERN_ERR, musb->controller,
"VBUS_ERROR in %s (%02x, %s), retry #%d, port1 %08x\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
devctl,
({ char *s;
switch (devctl & MUSB_DEVCTL_VBUS) {
@@ -630,10 +712,10 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
if (int_usb & MUSB_INTR_SUSPEND) {
dev_dbg(musb->controller, "SUSPEND (%s) devctl %02x\n",
- usb_otg_state_string(musb->xceiv->state), devctl);
+ usb_otg_state_string(musb->xceiv->otg->state), devctl);
handled = IRQ_HANDLED;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_PERIPHERAL:
/* We also come here if the cable is removed, since
* this silicon doesn't report ID-no-longer-grounded.
@@ -657,7 +739,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
musb_g_suspend(musb);
musb->is_active = musb->g.b_hnp_enable;
if (musb->is_active) {
- musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
+ musb->xceiv->otg->state = OTG_STATE_B_WAIT_ACON;
dev_dbg(musb->controller, "HNP: Setting timer for b_ase0_brst\n");
mod_timer(&musb->otg_timer, jiffies
+ msecs_to_jiffies(
@@ -670,7 +752,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
+ msecs_to_jiffies(musb->a_wait_bcon));
break;
case OTG_STATE_A_HOST:
- musb->xceiv->state = OTG_STATE_A_SUSPEND;
+ musb->xceiv->otg->state = OTG_STATE_A_SUSPEND;
musb->is_active = musb->hcd->self.b_hnp_enable;
break;
case OTG_STATE_B_HOST:
@@ -713,7 +795,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
musb->port1_status |= USB_PORT_STAT_LOW_SPEED;
/* indicate new connection to OTG machine */
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_PERIPHERAL:
if (int_usb & MUSB_INTR_SUSPEND) {
dev_dbg(musb->controller, "HNP: SUSPEND+CONNECT, now b_host\n");
@@ -725,7 +807,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
case OTG_STATE_B_WAIT_ACON:
dev_dbg(musb->controller, "HNP: CONNECT, now b_host\n");
b_host:
- musb->xceiv->state = OTG_STATE_B_HOST;
+ musb->xceiv->otg->state = OTG_STATE_B_HOST;
if (musb->hcd)
musb->hcd->self.is_b_host = 1;
del_timer(&musb->otg_timer);
@@ -733,7 +815,7 @@ b_host:
default:
if ((devctl & MUSB_DEVCTL_VBUS)
== (3 << MUSB_DEVCTL_VBUS_SHIFT)) {
- musb->xceiv->state = OTG_STATE_A_HOST;
+ musb->xceiv->otg->state = OTG_STATE_A_HOST;
if (hcd)
hcd->self.is_b_host = 0;
}
@@ -743,16 +825,16 @@ b_host:
musb_host_poke_root_hub(musb);
dev_dbg(musb->controller, "CONNECT (%s) devctl %02x\n",
- usb_otg_state_string(musb->xceiv->state), devctl);
+ usb_otg_state_string(musb->xceiv->otg->state), devctl);
}
if (int_usb & MUSB_INTR_DISCONNECT) {
dev_dbg(musb->controller, "DISCONNECT (%s) as %s, devctl %02x\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
MUSB_MODE(musb), devctl);
handled = IRQ_HANDLED;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_HOST:
case OTG_STATE_A_SUSPEND:
musb_host_resume_root_hub(musb);
@@ -770,7 +852,7 @@ b_host:
musb_root_disconnect(musb);
if (musb->hcd)
musb->hcd->self.is_b_host = 0;
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
MUSB_DEV_MODE(musb);
musb_g_disconnect(musb);
break;
@@ -786,7 +868,7 @@ b_host:
break;
default:
WARNING("unhandled DISCONNECT transition (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
break;
}
}
@@ -812,15 +894,15 @@ b_host:
}
} else {
dev_dbg(musb->controller, "BUS RESET as %s\n",
- usb_otg_state_string(musb->xceiv->state));
- switch (musb->xceiv->state) {
+ usb_otg_state_string(musb->xceiv->otg->state));
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_SUSPEND:
musb_g_reset(musb);
/* FALLTHROUGH */
case OTG_STATE_A_WAIT_BCON: /* OPT TD.4.7-900ms */
/* never use invalid T(a_wait_bcon) */
dev_dbg(musb->controller, "HNP: in %s, %d msec timeout\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
TA_WAIT_BCON(musb));
mod_timer(&musb->otg_timer, jiffies
+ msecs_to_jiffies(TA_WAIT_BCON(musb)));
@@ -831,27 +913,29 @@ b_host:
break;
case OTG_STATE_B_WAIT_ACON:
dev_dbg(musb->controller, "HNP: RESET (%s), to b_peripheral\n",
- usb_otg_state_string(musb->xceiv->state));
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ usb_otg_state_string(musb->xceiv->otg->state));
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb_g_reset(musb);
break;
case OTG_STATE_B_IDLE:
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
/* FALLTHROUGH */
case OTG_STATE_B_PERIPHERAL:
musb_g_reset(musb);
break;
default:
dev_dbg(musb->controller, "Unhandled BUS RESET as %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
}
/* handle babble condition */
- if (int_usb & MUSB_INTR_BABBLE && is_host_active(musb))
+ if (int_usb & MUSB_INTR_BABBLE && is_host_active(musb)) {
+ musb_generic_disable(musb);
schedule_delayed_work(&musb->recover_work,
msecs_to_jiffies(100));
+ }
#if 0
/* REVISIT ... this would be for multiplexing periodic endpoints, or
@@ -1032,21 +1116,7 @@ static void musb_shutdown(struct platform_device *pdev)
* We don't currently use dynamic fifo setup capability to do anything
* more than selecting one of a bunch of predefined configurations.
*/
-#if defined(CONFIG_USB_MUSB_TUSB6010) \
- || defined(CONFIG_USB_MUSB_TUSB6010_MODULE) \
- || defined(CONFIG_USB_MUSB_OMAP2PLUS) \
- || defined(CONFIG_USB_MUSB_OMAP2PLUS_MODULE) \
- || defined(CONFIG_USB_MUSB_AM35X) \
- || defined(CONFIG_USB_MUSB_AM35X_MODULE) \
- || defined(CONFIG_USB_MUSB_DSPS) \
- || defined(CONFIG_USB_MUSB_DSPS_MODULE)
-static ushort fifo_mode = 4;
-#elif defined(CONFIG_USB_MUSB_UX500) \
- || defined(CONFIG_USB_MUSB_UX500_MODULE)
-static ushort fifo_mode = 5;
-#else
-static ushort fifo_mode = 2;
-#endif
+static ushort fifo_mode;
/* "modprobe ... fifo_mode=1" etc */
module_param(fifo_mode, ushort, 0);
@@ -1456,20 +1526,25 @@ static int musb_core_init(u16 musb_type, struct musb *musb)
for (i = 0; i < musb->nr_endpoints; i++) {
struct musb_hw_ep *hw_ep = musb->endpoints + i;
- hw_ep->fifo = MUSB_FIFO_OFFSET(i) + mbase;
-#if defined(CONFIG_USB_MUSB_TUSB6010) || defined (CONFIG_USB_MUSB_TUSB6010_MODULE)
- hw_ep->fifo_async = musb->async + 0x400 + MUSB_FIFO_OFFSET(i);
- hw_ep->fifo_sync = musb->sync + 0x400 + MUSB_FIFO_OFFSET(i);
- hw_ep->fifo_sync_va =
- musb->sync_va + 0x400 + MUSB_FIFO_OFFSET(i);
-
- if (i == 0)
- hw_ep->conf = mbase - 0x400 + TUSB_EP0_CONF;
- else
- hw_ep->conf = mbase + 0x400 + (((i - 1) & 0xf) << 2);
+ hw_ep->fifo = musb->io.fifo_offset(i) + mbase;
+#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010)
+ if (musb->io.quirks & MUSB_IN_TUSB) {
+ hw_ep->fifo_async = musb->async + 0x400 +
+ musb->io.fifo_offset(i);
+ hw_ep->fifo_sync = musb->sync + 0x400 +
+ musb->io.fifo_offset(i);
+ hw_ep->fifo_sync_va =
+ musb->sync_va + 0x400 + musb->io.fifo_offset(i);
+
+ if (i == 0)
+ hw_ep->conf = mbase - 0x400 + TUSB_EP0_CONF;
+ else
+ hw_ep->conf = mbase + 0x400 +
+ (((i - 1) & 0xf) << 2);
+ }
#endif
- hw_ep->regs = MUSB_EP_OFFSET(i, 0) + mbase;
+ hw_ep->regs = musb->io.ep_offset(i, 0) + mbase;
hw_ep->target_regs = musb_read_target_reg_base(i, mbase);
hw_ep->rx_reinit = 1;
hw_ep->tx_reinit = 1;
@@ -1630,7 +1705,7 @@ musb_mode_show(struct device *dev, struct device_attribute *attr, char *buf)
int ret = -EINVAL;
spin_lock_irqsave(&musb->lock, flags);
- ret = sprintf(buf, "%s\n", usb_otg_state_string(musb->xceiv->state));
+ ret = sprintf(buf, "%s\n", usb_otg_state_string(musb->xceiv->otg->state));
spin_unlock_irqrestore(&musb->lock, flags);
return ret;
@@ -1675,7 +1750,7 @@ musb_vbus_store(struct device *dev, struct device_attribute *attr,
spin_lock_irqsave(&musb->lock, flags);
/* force T(a_wait_bcon) to be zero/unlimited *OR* valid */
musb->a_wait_bcon = val ? max_t(int, val, OTG_TIME_A_WAIT_BCON) : 0 ;
- if (musb->xceiv->state == OTG_STATE_A_WAIT_BCON)
+ if (musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON)
musb->is_active = 0;
musb_platform_try_idle(musb, jiffies + msecs_to_jiffies(val));
spin_unlock_irqrestore(&musb->lock, flags);
@@ -1743,8 +1818,8 @@ static void musb_irq_work(struct work_struct *data)
{
struct musb *musb = container_of(data, struct musb, irq_work);
- if (musb->xceiv->state != musb->xceiv_old_state) {
- musb->xceiv_old_state = musb->xceiv->state;
+ if (musb->xceiv->otg->state != musb->xceiv_old_state) {
+ musb->xceiv_old_state = musb->xceiv->otg->state;
sysfs_notify(&musb->controller->kobj, NULL, "mode");
}
}
@@ -1903,6 +1978,18 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
musb->ops = plat->platform_ops;
musb->port_mode = plat->mode;
+ /*
+ * Initialize the default IO functions. At least omap2430 needs
+ * these early. We initialize the platform specific IO functions
+ * later on.
+ */
+ musb_readb = musb_default_readb;
+ musb_writeb = musb_default_writeb;
+ musb_readw = musb_default_readw;
+ musb_writew = musb_default_writew;
+ musb_readl = musb_default_readl;
+ musb_writel = musb_default_writel;
+
/* The musb_platform_init() call:
* - adjusts musb->mregs
* - sets the musb->isr
@@ -1924,6 +2011,57 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
goto fail2;
}
+ if (musb->ops->quirks)
+ musb->io.quirks = musb->ops->quirks;
+
+ /* At least tusb6010 has it's own offsets.. */
+ if (musb->ops->ep_offset)
+ musb->io.ep_offset = musb->ops->ep_offset;
+ if (musb->ops->ep_select)
+ musb->io.ep_select = musb->ops->ep_select;
+
+ /* ..and some devices use indexed offset or flat offset */
+ if (musb->io.quirks & MUSB_INDEXED_EP) {
+ musb->io.ep_offset = musb_indexed_ep_offset;
+ musb->io.ep_select = musb_indexed_ep_select;
+ } else {
+ musb->io.ep_offset = musb_flat_ep_offset;
+ musb->io.ep_select = musb_flat_ep_select;
+ }
+
+ if (musb->ops->fifo_mode)
+ fifo_mode = musb->ops->fifo_mode;
+ else
+ fifo_mode = 4;
+
+ if (musb->ops->fifo_offset)
+ musb->io.fifo_offset = musb->ops->fifo_offset;
+ else
+ musb->io.fifo_offset = musb_default_fifo_offset;
+
+ if (musb->ops->readb)
+ musb_readb = musb->ops->readb;
+ if (musb->ops->writeb)
+ musb_writeb = musb->ops->writeb;
+ if (musb->ops->readw)
+ musb_readw = musb->ops->readw;
+ if (musb->ops->writew)
+ musb_writew = musb->ops->writew;
+ if (musb->ops->readl)
+ musb_readl = musb->ops->readl;
+ if (musb->ops->writel)
+ musb_writel = musb->ops->writel;
+
+ if (musb->ops->read_fifo)
+ musb->io.read_fifo = musb->ops->read_fifo;
+ else
+ musb->io.read_fifo = musb_default_read_fifo;
+
+ if (musb->ops->write_fifo)
+ musb->io.write_fifo = musb->ops->write_fifo;
+ else
+ musb->io.write_fifo = musb_default_write_fifo;
+
if (!musb->xceiv->io_ops) {
musb->xceiv->io_dev = musb->controller;
musb->xceiv->io_priv = musb->mregs;
@@ -1983,10 +2121,10 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
if (musb->xceiv->otg->default_a) {
MUSB_HST_MODE(musb);
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
} else {
MUSB_DEV_MODE(musb);
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
}
switch (musb->port_mode) {
@@ -2080,10 +2218,10 @@ static int musb_probe(struct platform_device *pdev)
struct resource *iomem;
void __iomem *base;
- iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!iomem || irq <= 0)
+ if (irq <= 0)
return -ENODEV;
+ iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(dev, iomem);
if (IS_ERR(base))
return PTR_ERR(base);
@@ -2297,9 +2435,11 @@ static int musb_suspend(struct device *dev)
return 0;
}
-static int musb_resume_noirq(struct device *dev)
+static int musb_resume(struct device *dev)
{
struct musb *musb = dev_to_musb(dev);
+ u8 devctl;
+ u8 mask;
/*
* For static cmos like DaVinci, register values were preserved
@@ -2313,6 +2453,23 @@ static int musb_resume_noirq(struct device *dev)
musb_restore_context(musb);
+ devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+ mask = MUSB_DEVCTL_BDEVICE | MUSB_DEVCTL_FSDEV | MUSB_DEVCTL_LSDEV;
+ if ((devctl & mask) != (musb->context.devctl & mask))
+ musb->port1_status = 0;
+ if (musb->need_finish_resume) {
+ musb->need_finish_resume = 0;
+ schedule_delayed_work(&musb->finish_resume_work,
+ msecs_to_jiffies(20));
+ }
+
+ /*
+ * The USB HUB code expects the device to be in RPM_ACTIVE once it came
+ * out of suspend
+ */
+ pm_runtime_disable(dev);
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
return 0;
}
@@ -2348,7 +2505,7 @@ static int musb_runtime_resume(struct device *dev)
static const struct dev_pm_ops musb_dev_pm_ops = {
.suspend = musb_suspend,
- .resume_noirq = musb_resume_noirq,
+ .resume = musb_resume,
.runtime_suspend = musb_runtime_suspend,
.runtime_resume = musb_runtime_resume,
};
@@ -2362,7 +2519,6 @@ static struct platform_driver musb_driver = {
.driver = {
.name = (char *)musb_driver_name,
.bus = &platform_bus_type,
- .owner = THIS_MODULE,
.pm = MUSB_DEV_PM_OPS,
},
.probe = musb_probe,
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 414e57a984bb..5e65958f7915 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -124,41 +124,6 @@ enum musb_g_ep0_state {
#define OTG_TIME_A_AIDL_BDIS 200 /* min 200 msec */
#define OTG_TIME_B_ASE0_BRST 100 /* min 3.125 ms */
-
-/*************************** REGISTER ACCESS ********************************/
-
-/* Endpoint registers (other than dynfifo setup) can be accessed either
- * directly with the "flat" model, or after setting up an index register.
- */
-
-#if defined(CONFIG_ARCH_DAVINCI) || defined(CONFIG_SOC_OMAP2430) \
- || defined(CONFIG_SOC_OMAP3430) || defined(CONFIG_BLACKFIN) \
- || defined(CONFIG_ARCH_OMAP4)
-/* REVISIT indexed access seemed to
- * misbehave (on DaVinci) for at least peripheral IN ...
- */
-#define MUSB_FLAT_REG
-#endif
-
-/* TUSB mapping: "flat" plus ep0 special cases */
-#if defined(CONFIG_USB_MUSB_TUSB6010) || \
- defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
-#define musb_ep_select(_mbase, _epnum) \
- musb_writeb((_mbase), MUSB_INDEX, (_epnum))
-#define MUSB_EP_OFFSET MUSB_TUSB_OFFSET
-
-/* "flat" mapping: each endpoint has its own i/o address */
-#elif defined(MUSB_FLAT_REG)
-#define musb_ep_select(_mbase, _epnum) (((void)(_mbase)), ((void)(_epnum)))
-#define MUSB_EP_OFFSET MUSB_FLAT_OFFSET
-
-/* "indexed" mapping: INDEX register controls register bank select */
-#else
-#define musb_ep_select(_mbase, _epnum) \
- musb_writeb((_mbase), MUSB_INDEX, (_epnum))
-#define MUSB_EP_OFFSET MUSB_INDEXED_OFFSET
-#endif
-
/****************************** FUNCTIONS ********************************/
#define MUSB_HST_MODE(_musb)\
@@ -173,8 +138,25 @@ enum musb_g_ep0_state {
/******************************** TYPES *************************************/
+struct musb_io;
+
/**
* struct musb_platform_ops - Operations passed to musb_core by HW glue layer
+ * @quirks: flags for platform specific quirks
+ * @enable: enable device
+ * @disable: disable device
+ * @ep_offset: returns the end point offset
+ * @ep_select: selects the specified end point
+ * @fifo_mode: sets the fifo mode
+ * @fifo_offset: returns the fifo offset
+ * @readb: read 8 bits
+ * @writeb: write 8 bits
+ * @readw: read 16 bits
+ * @writew: write 16 bits
+ * @readl: read 32 bits
+ * @writel: write 32 bits
+ * @read_fifo: reads the fifo
+ * @write_fifo: writes to fifo
* @init: turns on clocks, sets up platform-specific registers, etc
* @exit: undoes @init
* @set_mode: forcefully changes operating mode
@@ -184,12 +166,34 @@ enum musb_g_ep0_state {
* @adjust_channel_params: pre check for standard dma channel_program func
*/
struct musb_platform_ops {
+
+#define MUSB_DMA_UX500 BIT(6)
+#define MUSB_DMA_CPPI41 BIT(5)
+#define MUSB_DMA_CPPI BIT(4)
+#define MUSB_DMA_TUSB_OMAP BIT(3)
+#define MUSB_DMA_INVENTRA BIT(2)
+#define MUSB_IN_TUSB BIT(1)
+#define MUSB_INDEXED_EP BIT(0)
+ u32 quirks;
+
int (*init)(struct musb *musb);
int (*exit)(struct musb *musb);
void (*enable)(struct musb *musb);
void (*disable)(struct musb *musb);
+ u32 (*ep_offset)(u8 epnum, u16 offset);
+ void (*ep_select)(void __iomem *mbase, u8 epnum);
+ u16 fifo_mode;
+ u32 (*fifo_offset)(u8 epnum);
+ u8 (*readb)(const void __iomem *addr, unsigned offset);
+ void (*writeb)(void __iomem *addr, unsigned offset, u8 data);
+ u16 (*readw)(const void __iomem *addr, unsigned offset);
+ void (*writew)(void __iomem *addr, unsigned offset, u16 data);
+ u32 (*readl)(const void __iomem *addr, unsigned offset);
+ void (*writel)(void __iomem *addr, unsigned offset, u32 data);
+ void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
+ void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
int (*set_mode)(struct musb *musb, u8 mode);
void (*try_idle)(struct musb *musb, unsigned long timeout);
int (*reset)(struct musb *musb);
@@ -212,8 +216,7 @@ struct musb_hw_ep {
void __iomem *fifo;
void __iomem *regs;
-#if defined(CONFIG_USB_MUSB_TUSB6010) || \
- defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010)
void __iomem *conf;
#endif
@@ -230,8 +233,7 @@ struct musb_hw_ep {
struct dma_channel *tx_channel;
struct dma_channel *rx_channel;
-#if defined(CONFIG_USB_MUSB_TUSB6010) || \
- defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010)
/* TUSB has "asynchronous" and "synchronous" dma modes */
dma_addr_t fifo_async;
dma_addr_t fifo_sync;
@@ -292,6 +294,7 @@ struct musb {
/* device lock */
spinlock_t lock;
+ struct musb_io io;
const struct musb_platform_ops *ops;
struct musb_context_registers context;
@@ -334,8 +337,7 @@ struct musb {
void __iomem *ctrl_base;
void __iomem *mregs;
-#if defined(CONFIG_USB_MUSB_TUSB6010) || \
- defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
+#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010)
dma_addr_t async;
dma_addr_t sync;
void __iomem *sync_va;
@@ -390,6 +392,7 @@ struct musb {
/* is_suspended means USB B_PERIPHERAL suspend */
unsigned is_suspended:1;
+ unsigned need_finish_resume :1;
/* may_wakeup means remote wakeup is enabled */
unsigned may_wakeup:1;
@@ -474,7 +477,7 @@ static inline int musb_read_fifosize(struct musb *musb,
u8 reg = 0;
/* read from core using indexed model */
- reg = musb_readb(mbase, MUSB_EP_OFFSET(epnum, MUSB_FIFOSIZE));
+ reg = musb_readb(mbase, musb->io.ep_offset(epnum, MUSB_FIFOSIZE));
/* 0's returned when no more endpoints */
if (!reg)
return -ENODEV;
diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c
index 5a9b977fbc19..f64fd964dc6d 100644
--- a/drivers/usb/musb/musb_cppi41.c
+++ b/drivers/usb/musb/musb_cppi41.c
@@ -253,6 +253,7 @@ static void cppi41_dma_callback(void *private_data)
cppi41_trans_done(cppi41_channel);
} else {
struct cppi41_dma_controller *controller;
+ int is_hs = 0;
/*
* On AM335x it has been observed that the TX interrupt fires
* too early that means the TXFIFO is not yet empty but the DMA
@@ -265,7 +266,14 @@ static void cppi41_dma_callback(void *private_data)
*/
controller = cppi41_channel->controller;
- if (musb->g.speed == USB_SPEED_HIGH) {
+ if (is_host_active(musb)) {
+ if (musb->port1_status & USB_PORT_STAT_HIGH_SPEED)
+ is_hs = 1;
+ } else {
+ if (musb->g.speed == USB_SPEED_HIGH)
+ is_hs = 1;
+ }
+ if (is_hs) {
unsigned wait = 25;
do {
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index 4c216790e86b..ad3701a97389 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -49,33 +49,36 @@ struct musb_register_map {
};
static const struct musb_register_map musb_regmap[] = {
- { "FAddr", 0x00, 8 },
- { "Power", 0x01, 8 },
- { "Frame", 0x0c, 16 },
- { "Index", 0x0e, 8 },
- { "Testmode", 0x0f, 8 },
- { "TxMaxPp", 0x10, 16 },
- { "TxCSRp", 0x12, 16 },
- { "RxMaxPp", 0x14, 16 },
- { "RxCSR", 0x16, 16 },
- { "RxCount", 0x18, 16 },
- { "ConfigData", 0x1f, 8 },
- { "DevCtl", 0x60, 8 },
- { "MISC", 0x61, 8 },
- { "TxFIFOsz", 0x62, 8 },
- { "RxFIFOsz", 0x63, 8 },
- { "TxFIFOadd", 0x64, 16 },
- { "RxFIFOadd", 0x66, 16 },
- { "VControl", 0x68, 32 },
- { "HWVers", 0x6C, 16 },
- { "EPInfo", 0x78, 8 },
- { "RAMInfo", 0x79, 8 },
- { "LinkInfo", 0x7A, 8 },
- { "VPLen", 0x7B, 8 },
- { "HS_EOF1", 0x7C, 8 },
- { "FS_EOF1", 0x7D, 8 },
- { "LS_EOF1", 0x7E, 8 },
- { "SOFT_RST", 0x7F, 8 },
+ { "FAddr", MUSB_FADDR, 8 },
+ { "Power", MUSB_POWER, 8 },
+ { "Frame", MUSB_FRAME, 16 },
+ { "Index", MUSB_INDEX, 8 },
+ { "Testmode", MUSB_TESTMODE, 8 },
+ { "TxMaxPp", MUSB_TXMAXP, 16 },
+ { "TxCSRp", MUSB_TXCSR, 16 },
+ { "RxMaxPp", MUSB_RXMAXP, 16 },
+ { "RxCSR", MUSB_RXCSR, 16 },
+ { "RxCount", MUSB_RXCOUNT, 16 },
+ { "ConfigData", MUSB_CONFIGDATA,8 },
+ { "IntrRxE", MUSB_INTRRXE, 16 },
+ { "IntrTxE", MUSB_INTRTXE, 16 },
+ { "IntrUsbE", MUSB_INTRUSBE, 8 },
+ { "DevCtl", MUSB_DEVCTL, 8 },
+ { "BabbleCtl", MUSB_BABBLE_CTL,8 },
+ { "TxFIFOsz", MUSB_TXFIFOSZ, 8 },
+ { "RxFIFOsz", MUSB_RXFIFOSZ, 8 },
+ { "TxFIFOadd", MUSB_TXFIFOADD, 16 },
+ { "RxFIFOadd", MUSB_RXFIFOADD, 16 },
+ { "VControl", 0x68, 32 },
+ { "HWVers", 0x69, 16 },
+ { "EPInfo", MUSB_EPINFO, 8 },
+ { "RAMInfo", MUSB_RAMINFO, 8 },
+ { "LinkInfo", MUSB_LINKINFO, 8 },
+ { "VPLen", MUSB_VPLEN, 8 },
+ { "HS_EOF1", MUSB_HS_EOF1, 8 },
+ { "FS_EOF1", MUSB_FS_EOF1, 8 },
+ { "LS_EOF1", MUSB_LS_EOF1, 8 },
+ { "SOFT_RST", 0x7F, 8 },
{ "DMA_CNTLch0", 0x204, 16 },
{ "DMA_ADDRch0", 0x208, 32 },
{ "DMA_COUNTch0", 0x20C, 32 },
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 48bc09e7b83b..53bd0e71d19f 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -179,9 +179,9 @@ static void dsps_musb_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->otg->state == OTG_STATE_A_WAIT_BCON)) {
dev_dbg(musb->controller, "%s active, deleting timer\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
del_timer(&glue->timer);
glue->last_timer = jiffies;
return;
@@ -201,7 +201,7 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
glue->last_timer = timeout;
dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
jiffies_to_msecs(timeout - jiffies));
mod_timer(&glue->timer, timeout);
}
@@ -265,10 +265,10 @@ static void otg_timer(unsigned long _musb)
*/
devctl = dsps_readb(mregs, MUSB_DEVCTL);
dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl,
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_BCON:
dsps_writeb(musb->mregs, MUSB_DEVCTL, 0);
skip_session = 1;
@@ -277,10 +277,10 @@ static void otg_timer(unsigned long _musb)
case OTG_STATE_A_IDLE:
case OTG_STATE_B_IDLE:
if (devctl & MUSB_DEVCTL_BDEVICE) {
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(musb);
} else {
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
}
if (!(devctl & MUSB_DEVCTL_SESSION) && !skip_session)
@@ -288,7 +288,7 @@ static void otg_timer(unsigned long _musb)
mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
break;
case OTG_STATE_A_WAIT_VFALL:
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
dsps_writel(musb->ctrl_base, wrp->coreintr_set,
MUSB_INTR_VBUSERROR << wrp->usb_shift);
break;
@@ -373,26 +373,26 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
* devctl.
*/
musb->int_usb &= ~MUSB_INTR_VBUSERROR;
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&glue->timer,
jiffies + wrp->poll_seconds * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (drvvbus) {
MUSB_HST_MODE(musb);
musb->xceiv->otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
del_timer(&glue->timer);
} else {
musb->is_active = 0;
MUSB_DEV_MODE(musb);
musb->xceiv->otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
}
/* NOTE: this must complete power-on within 100 ms. */
dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
drvvbus ? "on" : "off",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
err ? " ERROR" : "",
devctl);
ret = IRQ_HANDLED;
@@ -402,7 +402,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
ret |= musb_interrupt(musb);
/* Poll for ID change in OTG port mode */
- if (musb->xceiv->state == OTG_STATE_B_IDLE &&
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE &&
musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE)
mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
out:
@@ -447,9 +447,6 @@ static int dsps_musb_init(struct musb *musb)
int ret;
r = platform_get_resource_byname(parent, IORESOURCE_MEM, "control");
- if (!r)
- return -EINVAL;
-
reg_base = devm_ioremap_resource(dev, r);
if (IS_ERR(reg_base))
return PTR_ERR(reg_base);
@@ -636,6 +633,7 @@ static int dsps_musb_reset(struct musb *musb)
}
static struct musb_platform_ops dsps_ops = {
+ .quirks = MUSB_INDEXED_EP,
.init = dsps_musb_init,
.exit = dsps_musb_exit,
@@ -729,7 +727,6 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue,
config = devm_kzalloc(&parent->dev, sizeof(*config), GFP_KERNEL);
if (!config) {
- dev_err(dev, "failed to allocate musb hdrc config\n");
ret = -ENOMEM;
goto err;
}
@@ -781,10 +778,8 @@ static int dsps_probe(struct platform_device *pdev)
/* allocate glue */
glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
- if (!glue) {
- dev_err(&pdev->dev, "unable to allocate glue memory\n");
+ if (!glue)
return -ENOMEM;
- }
glue->dev = &pdev->dev;
glue->wrp = wrp;
@@ -906,7 +901,7 @@ static int dsps_resume(struct device *dev)
dsps_writel(mbase, wrp->mode, glue->context.mode);
dsps_writel(mbase, wrp->tx_mode, glue->context.tx_mode);
dsps_writel(mbase, wrp->rx_mode, glue->context.rx_mode);
- if (musb->xceiv->state == OTG_STATE_B_IDLE &&
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE &&
musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE)
mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 24c8c0219790..49b04cb6f5ca 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1546,7 +1546,7 @@ static int musb_gadget_wakeup(struct usb_gadget *gadget)
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_PERIPHERAL:
/* NOTE: OTG state machine doesn't include B_SUSPENDED;
* that's part of the standard usb 1.1 state machine, and
@@ -1587,7 +1587,7 @@ static int musb_gadget_wakeup(struct usb_gadget *gadget)
goto done;
default:
dev_dbg(musb->controller, "Unhandled wake: %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
goto done;
}
@@ -1684,8 +1684,7 @@ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
static int musb_gadget_start(struct usb_gadget *g,
struct usb_gadget_driver *driver);
-static int musb_gadget_stop(struct usb_gadget *g,
- struct usb_gadget_driver *driver);
+static int musb_gadget_stop(struct usb_gadget *g);
static const struct usb_gadget_ops musb_gadget_operations = {
.get_frame = musb_gadget_get_frame,
@@ -1792,7 +1791,7 @@ int musb_gadget_setup(struct musb *musb)
MUSB_DEV_MODE(musb);
musb->xceiv->otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
/* this "gadget" abstracts/virtualizes the controller */
musb->g.name = musb_driver_name;
@@ -1851,8 +1850,6 @@ static int musb_gadget_start(struct usb_gadget *g,
pm_runtime_get_sync(musb->controller);
- dev_dbg(musb->controller, "registering driver %s\n", driver->function);
-
musb->softconnect = 0;
musb->gadget_driver = driver;
@@ -1860,7 +1857,7 @@ static int musb_gadget_start(struct usb_gadget *g,
musb->is_active = 1;
otg_set_peripheral(otg, &musb->g);
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
spin_unlock_irqrestore(&musb->lock, flags);
musb_start(musb);
@@ -1925,8 +1922,7 @@ static void stop_activity(struct musb *musb, struct usb_gadget_driver *driver)
*
* @param driver the gadget driver to unregister
*/
-static int musb_gadget_stop(struct usb_gadget *g,
- struct usb_gadget_driver *driver)
+static int musb_gadget_stop(struct usb_gadget *g)
{
struct musb *musb = gadget_to_musb(g);
unsigned long flags;
@@ -1945,13 +1941,10 @@ static int musb_gadget_stop(struct usb_gadget *g,
(void) musb_gadget_vbus_draw(&musb->g, 0);
- musb->xceiv->state = OTG_STATE_UNDEFINED;
- stop_activity(musb, driver);
+ musb->xceiv->otg->state = OTG_STATE_UNDEFINED;
+ stop_activity(musb, NULL);
otg_set_peripheral(musb->xceiv->otg, NULL);
- dev_dbg(musb->controller, "unregistering driver %s\n",
- driver ? driver->function : "(removed)");
-
musb->is_active = 0;
musb->gadget_driver = NULL;
musb_platform_try_idle(musb, 0);
@@ -1975,7 +1968,7 @@ static int musb_gadget_stop(struct usb_gadget *g,
void musb_g_resume(struct musb *musb)
{
musb->is_suspended = 0;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_IDLE:
break;
case OTG_STATE_B_WAIT_ACON:
@@ -1989,7 +1982,7 @@ void musb_g_resume(struct musb *musb)
break;
default:
WARNING("unhandled RESUME transition (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
@@ -2001,10 +1994,10 @@ void musb_g_suspend(struct musb *musb)
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
dev_dbg(musb->controller, "devctl %02x\n", devctl);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_IDLE:
if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
break;
case OTG_STATE_B_PERIPHERAL:
musb->is_suspended = 1;
@@ -2019,7 +2012,7 @@ void musb_g_suspend(struct musb *musb)
* A_PERIPHERAL may need care too
*/
WARNING("unhandled SUSPEND transition (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
@@ -2050,22 +2043,22 @@ void musb_g_disconnect(struct musb *musb)
spin_lock(&musb->lock);
}
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
default:
dev_dbg(musb->controller, "Unhandled disconnect %s, setting a_idle\n",
- usb_otg_state_string(musb->xceiv->state));
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ usb_otg_state_string(musb->xceiv->otg->state));
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
break;
case OTG_STATE_A_PERIPHERAL:
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
MUSB_HST_MODE(musb);
break;
case OTG_STATE_B_WAIT_ACON:
case OTG_STATE_B_HOST:
case OTG_STATE_B_PERIPHERAL:
case OTG_STATE_B_IDLE:
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
break;
case OTG_STATE_B_SRP_INIT:
break;
@@ -2090,9 +2083,12 @@ __acquires(musb->lock)
: NULL
);
- /* report disconnect, if we didn't already (flushing EP state) */
- if (musb->g.speed != USB_SPEED_UNKNOWN)
- musb_g_disconnect(musb);
+ /* report reset, if we didn't already (flushing EP state) */
+ if (musb->gadget_driver && musb->g.speed != USB_SPEED_UNKNOWN) {
+ spin_unlock(&musb->lock);
+ usb_gadget_udc_reset(&musb->g, musb->gadget_driver);
+ spin_lock(&musb->lock);
+ }
/* clear HR */
else if (devctl & MUSB_DEVCTL_HR)
@@ -2125,13 +2121,13 @@ __acquires(musb->lock)
* In that case, do not rely on devctl for setting
* peripheral mode.
*/
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb->g.is_a_peripheral = 0;
} else if (devctl & MUSB_DEVCTL_BDEVICE) {
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb->g.is_a_peripheral = 0;
} else {
- musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_A_PERIPHERAL;
musb->g.is_a_peripheral = 1;
}
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 855793d701bb..23d474d3d7f4 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -2463,7 +2463,7 @@ static int musb_bus_suspend(struct usb_hcd *hcd)
if (!is_host_active(musb))
return 0;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_SUSPEND:
return 0;
case OTG_STATE_A_WAIT_VRISE:
@@ -2473,7 +2473,7 @@ static int musb_bus_suspend(struct usb_hcd *hcd)
*/
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
break;
default:
break;
@@ -2481,7 +2481,7 @@ static int musb_bus_suspend(struct usb_hcd *hcd)
if (musb->is_active) {
WARNING("trying to suspend as %s while active\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
return -EBUSY;
} else
return 0;
@@ -2678,7 +2678,7 @@ int musb_host_setup(struct musb *musb, int power_budget)
MUSB_HST_MODE(musb);
musb->xceiv->otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
otg_set_host(musb->xceiv->otg, &hcd->self);
hcd->self.otg_port = 1;
diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h
index eebeed78edd6..8a57a6f4b3a6 100644
--- a/drivers/usb/musb/musb_io.h
+++ b/drivers/usb/musb/musb_io.h
@@ -37,86 +37,32 @@
#include <linux/io.h>
-#ifndef CONFIG_BLACKFIN
-
-/* NOTE: these offsets are all in bytes */
-
-static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
- { return __raw_readw(addr + offset); }
-
-static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
- { return __raw_readl(addr + offset); }
-
-
-static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
- { __raw_writew(data, addr + offset); }
-
-static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
- { __raw_writel(data, addr + offset); }
-
-
-#if defined(CONFIG_USB_MUSB_TUSB6010) || defined (CONFIG_USB_MUSB_TUSB6010_MODULE)
-
-/*
- * TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum.
+#define musb_ep_select(_mbase, _epnum) musb->io.ep_select((_mbase), (_epnum))
+
+/**
+ * struct musb_io - IO functions for MUSB
+ * @quirks: platform specific flags
+ * @ep_offset: platform specific function to get end point offset
+ * @ep_select: platform specific function to select end point
+ * @fifo_offset: platform specific function to get fifo offset
+ * @read_fifo: platform specific function to read fifo
+ * @write_fifo: platform specific function to write fifo
*/
-static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
-{
- u16 tmp;
- u8 val;
-
- tmp = __raw_readw(addr + (offset & ~1));
- if (offset & 1)
- val = (tmp >> 8);
- else
- val = tmp & 0xff;
-
- return val;
-}
-
-static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
-{
- u16 tmp;
-
- tmp = __raw_readw(addr + (offset & ~1));
- if (offset & 1)
- tmp = (data << 8) | (tmp & 0xff);
- else
- tmp = (tmp & 0xff00) | data;
-
- __raw_writew(tmp, addr + (offset & ~1));
-}
-
-#else
-
-static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
- { return __raw_readb(addr + offset); }
-
-static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
- { __raw_writeb(data, addr + offset); }
-
-#endif /* CONFIG_USB_MUSB_TUSB6010 */
-
-#else
-
-static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
- { return (u8) (bfin_read16(addr + offset)); }
-
-static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
- { return bfin_read16(addr + offset); }
-
-static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
- { return (u32) (bfin_read16(addr + offset)); }
-
-static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
- { bfin_write16(addr + offset, (u16) data); }
-
-static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
- { bfin_write16(addr + offset, data); }
-
-static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
- { bfin_write16(addr + offset, (u16) data); }
-
-#endif /* CONFIG_BLACKFIN */
+struct musb_io {
+ u32 quirks;
+ u32 (*ep_offset)(u8 epnum, u16 offset);
+ void (*ep_select)(void __iomem *mbase, u8 epnum);
+ u32 (*fifo_offset)(u8 epnum);
+ void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
+ void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
+};
+
+/* Do not add new entries here, add them the struct musb_io instead */
+extern u8 (*musb_readb)(const void __iomem *addr, unsigned offset);
+extern void (*musb_writeb)(void __iomem *addr, unsigned offset, u8 data);
+extern u16 (*musb_readw)(const void __iomem *addr, unsigned offset);
+extern void (*musb_writew)(void __iomem *addr, unsigned offset, u16 data);
+extern u32 (*musb_readl)(const void __iomem *addr, unsigned offset);
+extern void (*musb_writel)(void __iomem *addr, unsigned offset, u32 data);
#endif
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
index 37122a480bc1..11f0be07491e 100644
--- a/drivers/usb/musb/musb_regs.h
+++ b/drivers/usb/musb/musb_regs.h
@@ -239,14 +239,6 @@
#define MUSB_INDEX 0x0E /* 8 bit */
#define MUSB_TESTMODE 0x0F /* 8 bit */
-/* Get offset for a given FIFO from musb->mregs */
-#if defined(CONFIG_USB_MUSB_TUSB6010) || \
- defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
-#define MUSB_FIFO_OFFSET(epnum) (0x200 + ((epnum) * 0x20))
-#else
-#define MUSB_FIFO_OFFSET(epnum) (0x20 + ((epnum) * 4))
-#endif
-
/*
* Additional Control Registers
*/
@@ -295,21 +287,7 @@
#define MUSB_FIFOSIZE 0x0F
#define MUSB_CONFIGDATA MUSB_FIFOSIZE /* Re-used for EP0 */
-/* Offsets to endpoint registers in indexed model (using INDEX register) */
-#define MUSB_INDEXED_OFFSET(_epnum, _offset) \
- (0x10 + (_offset))
-
-/* Offsets to endpoint registers in flat models */
-#define MUSB_FLAT_OFFSET(_epnum, _offset) \
- (0x100 + (0x10*(_epnum)) + (_offset))
-
-#if defined(CONFIG_USB_MUSB_TUSB6010) || \
- defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
-/* TUSB6010 EP0 configuration register is special */
-#define MUSB_TUSB_OFFSET(_epnum, _offset) \
- (0x10 + _offset)
#include "tusb6010.h" /* Needed "only" for TUSB_EP0_CONF */
-#endif
#define MUSB_TXCSR_MODE 0x2000
@@ -480,10 +458,6 @@ static inline u8 musb_read_txhubport(void __iomem *mbase, u8 epnum)
#define MUSB_INDEX USB_OFFSET(USB_INDEX) /* 8 bit */
#define MUSB_TESTMODE USB_OFFSET(USB_TESTMODE)/* 8 bit */
-/* Get offset for a given FIFO from musb->mregs */
-#define MUSB_FIFO_OFFSET(epnum) \
- (USB_OFFSET(USB_EP0_FIFO) + ((epnum) * 8))
-
/*
* Additional Control Registers
*/
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index e2d2d8c9891b..b072420e44f5 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -69,9 +69,10 @@ void musb_host_finish_resume(struct work_struct *work)
musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16;
usb_hcd_poll_rh_status(musb->hcd);
/* NOTE: it might really be A_WAIT_BCON ... */
- musb->xceiv->state = OTG_STATE_A_HOST;
+ musb->xceiv->otg->state = OTG_STATE_A_HOST;
spin_unlock_irqrestore(&musb->lock, flags);
+ musb_host_resume_root_hub(musb);
}
void musb_port_suspend(struct musb *musb, bool do_suspend)
@@ -107,9 +108,9 @@ void musb_port_suspend(struct musb *musb, bool do_suspend)
dev_dbg(musb->controller, "Root port suspended, power %02x\n", power);
musb->port1_status |= USB_PORT_STAT_SUSPEND;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_HOST:
- musb->xceiv->state = OTG_STATE_A_SUSPEND;
+ musb->xceiv->otg->state = OTG_STATE_A_SUSPEND;
musb->is_active = otg->host->b_hnp_enable;
if (musb->is_active)
mod_timer(&musb->otg_timer, jiffies
@@ -118,13 +119,13 @@ void musb_port_suspend(struct musb *musb, bool do_suspend)
musb_platform_try_idle(musb, 0);
break;
case OTG_STATE_B_HOST:
- musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
+ musb->xceiv->otg->state = OTG_STATE_B_WAIT_ACON;
musb->is_active = otg->host->b_hnp_enable;
musb_platform_try_idle(musb, 0);
break;
default:
dev_dbg(musb->controller, "bogus rh suspend? %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
} else if (power & MUSB_POWER_SUSPENDM) {
power &= ~MUSB_POWER_SUSPENDM;
@@ -145,7 +146,7 @@ void musb_port_reset(struct musb *musb, bool do_reset)
u8 power;
void __iomem *mbase = musb->mregs;
- if (musb->xceiv->state == OTG_STATE_B_IDLE) {
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE) {
dev_dbg(musb->controller, "HNP: Returning from HNP; no hub reset from b_idle\n");
musb->port1_status &= ~USB_PORT_STAT_RESET;
return;
@@ -224,24 +225,24 @@ void musb_root_disconnect(struct musb *musb)
usb_hcd_poll_rh_status(musb->hcd);
musb->is_active = 0;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_SUSPEND:
if (otg->host->b_hnp_enable) {
- musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_A_PERIPHERAL;
musb->g.is_a_peripheral = 1;
break;
}
/* FALLTHROUGH */
case OTG_STATE_A_HOST:
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
musb->is_active = 0;
break;
case OTG_STATE_A_WAIT_VFALL:
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
break;
default:
dev_dbg(musb->controller, "host disconnect (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index e8e9f9aab203..ab7ec09a8afe 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -195,6 +195,7 @@ static int dma_channel_abort(struct dma_channel *channel)
{
struct musb_dma_channel *musb_channel = channel->private_data;
void __iomem *mbase = musb_channel->controller->base;
+ struct musb *musb = musb_channel->controller->private_data;
u8 bchannel = musb_channel->idx;
int offset;
@@ -202,7 +203,7 @@ static int dma_channel_abort(struct dma_channel *channel)
if (channel->status == MUSB_DMA_STATUS_BUSY) {
if (musb_channel->transmit) {
- offset = MUSB_EP_OFFSET(musb_channel->epnum,
+ offset = musb->io.ep_offset(musb_channel->epnum,
MUSB_TXCSR);
/*
@@ -215,7 +216,7 @@ static int dma_channel_abort(struct dma_channel *channel)
csr &= ~MUSB_TXCSR_DMAMODE;
musb_writew(mbase, offset, csr);
} else {
- offset = MUSB_EP_OFFSET(musb_channel->epnum,
+ offset = musb->io.ep_offset(musb_channel->epnum,
MUSB_RXCSR);
csr = musb_readw(mbase, offset);
@@ -326,7 +327,7 @@ static irqreturn_t dma_controller_irq(int irq, void *private_data)
(musb_channel->max_packet_sz - 1)))
) {
u8 epnum = musb_channel->epnum;
- int offset = MUSB_EP_OFFSET(epnum,
+ int offset = musb->io.ep_offset(epnum,
MUSB_TXCSR);
u16 txcsr;
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index d369bf1f3936..763649eb4987 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -65,15 +65,15 @@ static void musb_do_idle(unsigned long _musb)
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_BCON:
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE) {
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(musb);
} else {
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
}
break;
@@ -90,15 +90,15 @@ static void musb_do_idle(unsigned long _musb)
musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16;
usb_hcd_poll_rh_status(musb->hcd);
/* NOTE: it might really be A_WAIT_BCON ... */
- musb->xceiv->state = OTG_STATE_A_HOST;
+ musb->xceiv->otg->state = OTG_STATE_A_HOST;
}
break;
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->otg->state = OTG_STATE_B_IDLE;
else
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
default:
break;
}
@@ -116,9 +116,9 @@ static void omap2430_musb_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->otg->state == OTG_STATE_A_WAIT_BCON))) {
dev_dbg(musb->controller, "%s active, deleting timer\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
del_timer(&musb_idle_timer);
last_timer = jiffies;
return;
@@ -135,7 +135,7 @@ static void omap2430_musb_try_idle(struct musb *musb, unsigned long timeout)
last_timer = timeout;
dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
(unsigned long)jiffies_to_msecs(timeout - jiffies));
mod_timer(&musb_idle_timer, timeout);
}
@@ -153,7 +153,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (is_on) {
- if (musb->xceiv->state == OTG_STATE_A_IDLE) {
+ if (musb->xceiv->otg->state == OTG_STATE_A_IDLE) {
int loops = 100;
/* start the session */
devctl |= MUSB_DEVCTL_SESSION;
@@ -162,7 +162,8 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
* Wait for the musb to set as A device to enable the
* VBUS
*/
- while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) {
+ while (musb_readb(musb->mregs, MUSB_DEVCTL) &
+ MUSB_DEVCTL_BDEVICE) {
mdelay(5);
cpu_relax();
@@ -179,7 +180,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
} else {
musb->is_active = 1;
otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
devctl |= MUSB_DEVCTL_SESSION;
MUSB_HST_MODE(musb);
}
@@ -191,7 +192,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
*/
otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
devctl &= ~MUSB_DEVCTL_SESSION;
MUSB_DEV_MODE(musb);
@@ -200,7 +201,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
dev_dbg(musb->controller, "VBUS %s, devctl %02x "
/* otg %3x conf %08x prcm %08x */ "\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
musb_readb(musb->mregs, MUSB_DEVCTL));
}
@@ -265,7 +266,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
dev_dbg(dev, "ID GND\n");
otg->default_a = true;
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
musb->xceiv->last_event = USB_EVENT_ID;
if (musb->gadget_driver) {
pm_runtime_get_sync(dev);
@@ -279,7 +280,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
dev_dbg(dev, "VBUS Connect\n");
otg->default_a = false;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
pm_runtime_get_sync(dev);
@@ -518,10 +519,8 @@ static int omap2430_probe(struct platform_device *pdev)
int ret = -ENOMEM;
glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
- if (!glue) {
- dev_err(&pdev->dev, "failed to allocate glue context\n");
+ if (!glue)
goto err0;
- }
musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
if (!musb) {
@@ -543,25 +542,16 @@ static int omap2430_probe(struct platform_device *pdev)
struct platform_device *control_pdev;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
- if (!pdata) {
- dev_err(&pdev->dev,
- "failed to allocate musb platform data\n");
+ if (!pdata)
goto err2;
- }
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
- if (!data) {
- dev_err(&pdev->dev,
- "failed to allocate musb board data\n");
+ if (!data)
goto err2;
- }
config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
- if (!config) {
- dev_err(&pdev->dev,
- "failed to allocate musb hdrc config\n");
+ if (!config)
goto err2;
- }
of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
of_property_read_u32(np, "interface-type",
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 2daa779f1382..3a5ffd575438 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -126,6 +126,52 @@ static void tusb_wbus_quirk(struct musb *musb, int enabled)
}
}
+static u32 tusb_fifo_offset(u8 epnum)
+{
+ return 0x200 + (epnum * 0x20);
+}
+
+static u32 tusb_ep_offset(u8 epnum, u16 offset)
+{
+ return 0x10 + offset;
+}
+
+/* TUSB mapping: "flat" plus ep0 special cases */
+static void tusb_ep_select(void __iomem *mbase, u8 epnum)
+{
+ musb_writeb(mbase, MUSB_INDEX, epnum);
+}
+
+/*
+ * TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum.
+ */
+static u8 tusb_readb(const void __iomem *addr, unsigned offset)
+{
+ u16 tmp;
+ u8 val;
+
+ tmp = __raw_readw(addr + (offset & ~1));
+ if (offset & 1)
+ val = (tmp >> 8);
+ else
+ val = tmp & 0xff;
+
+ return val;
+}
+
+static void tusb_writeb(void __iomem *addr, unsigned offset, u8 data)
+{
+ u16 tmp;
+
+ tmp = __raw_readw(addr + (offset & ~1));
+ if (offset & 1)
+ tmp = (data << 8) | (tmp & 0xff);
+ else
+ tmp = (tmp & 0xff00) | data;
+
+ __raw_writew(tmp, addr + (offset & ~1));
+}
+
/*
* TUSB 6010 may use a parallel bus that doesn't support byte ops;
* so both loading and unloading FIFOs need explicit byte counts.
@@ -173,7 +219,7 @@ static inline void tusb_fifo_read_unaligned(void __iomem *fifo,
}
}
-void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf)
+static void tusb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf)
{
struct musb *musb = hw_ep->musb;
void __iomem *ep_conf = hw_ep->conf;
@@ -223,7 +269,7 @@ void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf)
tusb_fifo_write_unaligned(fifo, buf, len);
}
-void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *buf)
+static void tusb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *buf)
{
struct musb *musb = hw_ep->musb;
void __iomem *ep_conf = hw_ep->conf;
@@ -415,13 +461,13 @@ static void musb_do_idle(unsigned long _musb)
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_BCON:
if ((musb->a_wait_bcon != 0)
&& (musb->idle_timeout == 0
|| time_after(jiffies, musb->idle_timeout))) {
dev_dbg(musb->controller, "Nothing connected %s, turning off VBUS\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
/* FALLTHROUGH */
case OTG_STATE_A_IDLE:
@@ -474,9 +520,9 @@ static void tusb_musb_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->otg->state == OTG_STATE_A_WAIT_BCON))) {
dev_dbg(musb->controller, "%s active, deleting timer\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
del_timer(&musb_idle_timer);
last_timer = jiffies;
return;
@@ -493,7 +539,7 @@ static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout)
last_timer = timeout;
dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
(unsigned long)jiffies_to_msecs(timeout - jiffies));
mod_timer(&musb_idle_timer, timeout);
}
@@ -524,7 +570,7 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
if (is_on) {
timer = OTG_TIMER_MS(OTG_TIME_A_WAIT_VRISE);
otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
devctl |= MUSB_DEVCTL_SESSION;
conf |= TUSB_DEV_CONF_USB_HOST_MODE;
@@ -537,16 +583,16 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
/* If ID pin is grounded, we want to be a_idle */
otg_stat = musb_readl(tbase, TUSB_DEV_OTG_STAT);
if (!(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS)) {
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_VRISE:
case OTG_STATE_A_WAIT_BCON:
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
break;
case OTG_STATE_A_WAIT_VFALL:
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
break;
default:
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
}
musb->is_active = 0;
otg->default_a = 1;
@@ -554,7 +600,7 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
} else {
musb->is_active = 0;
otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(musb);
}
@@ -569,7 +615,7 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
dev_dbg(musb->controller, "VBUS %s, devctl %02x otg %3x conf %08x prcm %08x\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
musb_readb(musb->mregs, MUSB_DEVCTL),
musb_readl(tbase, TUSB_DEV_OTG_STAT),
conf, prcm);
@@ -668,23 +714,23 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
if (otg_stat & TUSB_DEV_OTG_STAT_SESS_END) {
dev_dbg(musb->controller, "Forcing disconnect (no interrupt)\n");
- if (musb->xceiv->state != OTG_STATE_B_IDLE) {
+ if (musb->xceiv->otg->state != OTG_STATE_B_IDLE) {
/* INTR_DISCONNECT can hide... */
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
musb->int_usb |= MUSB_INTR_DISCONNECT;
}
musb->is_active = 0;
}
dev_dbg(musb->controller, "vbus change, %s, otg %03x\n",
- usb_otg_state_string(musb->xceiv->state), otg_stat);
+ usb_otg_state_string(musb->xceiv->otg->state), otg_stat);
idle_timeout = jiffies + (1 * HZ);
schedule_work(&musb->irq_work);
} else /* A-dev state machine */ {
dev_dbg(musb->controller, "vbus change, %s, otg %03x\n",
- usb_otg_state_string(musb->xceiv->state), otg_stat);
+ usb_otg_state_string(musb->xceiv->otg->state), otg_stat);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_IDLE:
dev_dbg(musb->controller, "Got SRP, turning on VBUS\n");
musb_platform_set_vbus(musb, 1);
@@ -731,9 +777,9 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
u8 devctl;
dev_dbg(musb->controller, "%s timer, %03x\n",
- usb_otg_state_string(musb->xceiv->state), otg_stat);
+ usb_otg_state_string(musb->xceiv->otg->state), otg_stat);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_VRISE:
/* VBUS has probably been valid for a while now,
* but may well have bounced out of range a bit
@@ -745,7 +791,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
dev_dbg(musb->controller, "devctl %02x\n", devctl);
break;
}
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
musb->is_active = 0;
idle_timeout = jiffies
+ msecs_to_jiffies(musb->a_wait_bcon);
@@ -1135,9 +1181,17 @@ static int tusb_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops tusb_ops = {
+ .quirks = MUSB_IN_TUSB,
.init = tusb_musb_init,
.exit = tusb_musb_exit,
+ .ep_offset = tusb_ep_offset,
+ .ep_select = tusb_ep_select,
+ .fifo_offset = tusb_fifo_offset,
+ .readb = tusb_readb,
+ .writeb = tusb_writeb,
+ .read_fifo = tusb_read_fifo,
+ .write_fifo = tusb_write_fifo,
.enable = tusb_musb_enable,
.disable = tusb_musb_disable,
@@ -1164,10 +1218,8 @@ static int tusb_probe(struct platform_device *pdev)
int ret;
glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
- if (!glue) {
- dev_err(&pdev->dev, "failed to allocate glue context\n");
+ if (!glue)
return -ENOMEM;
- }
glue->dev = &pdev->dev;
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index dc666e96f45f..abf72728825f 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -56,7 +56,7 @@ static void ux500_musb_set_vbus(struct musb *musb, int is_on)
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (is_on) {
- if (musb->xceiv->state == OTG_STATE_A_IDLE) {
+ if (musb->xceiv->otg->state == OTG_STATE_A_IDLE) {
/* start the session */
devctl |= MUSB_DEVCTL_SESSION;
musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
@@ -76,7 +76,7 @@ static void ux500_musb_set_vbus(struct musb *musb, int is_on)
} else {
musb->is_active = 1;
musb->xceiv->otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
devctl |= MUSB_DEVCTL_SESSION;
MUSB_HST_MODE(musb);
}
@@ -102,7 +102,7 @@ static void ux500_musb_set_vbus(struct musb *musb, int is_on)
mdelay(200);
dev_dbg(musb->controller, "VBUS %s, devctl %02x\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
musb_readb(musb->mregs, MUSB_DEVCTL));
}
@@ -112,7 +112,7 @@ static int musb_otg_notifications(struct notifier_block *nb,
struct musb *musb = container_of(nb, struct musb, nb);
dev_dbg(musb->controller, "musb_otg_notifications %ld %s\n",
- event, usb_otg_state_string(musb->xceiv->state));
+ event, usb_otg_state_string(musb->xceiv->otg->state));
switch (event) {
case UX500_MUSB_ID:
@@ -127,7 +127,7 @@ static int musb_otg_notifications(struct notifier_block *nb,
if (is_host_active(musb))
ux500_musb_set_vbus(musb, 0);
else
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
break;
default:
dev_dbg(musb->controller, "ID float\n");
@@ -188,8 +188,10 @@ static int ux500_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops ux500_ops = {
+ .quirks = MUSB_INDEXED_EP,
.init = ux500_musb_init,
.exit = ux500_musb_exit,
+ .fifo_mode = 5,
.set_vbus = ux500_musb_set_vbus,
};
@@ -247,10 +249,8 @@ static int ux500_probe(struct platform_device *pdev)
}
glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
- if (!glue) {
- dev_err(&pdev->dev, "failed to allocate glue context\n");
+ if (!glue)
goto err0;
- }
musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
if (!musb) {
diff --git a/drivers/usb/musb/ux500_dma.c b/drivers/usb/musb/ux500_dma.c
index 221faed9f074..e93845c26bdb 100644
--- a/drivers/usb/musb/ux500_dma.c
+++ b/drivers/usb/musb/ux500_dma.c
@@ -91,9 +91,9 @@ static bool ux500_configure_channel(struct dma_channel *channel,
struct scatterlist sg;
struct dma_slave_config slave_conf;
enum dma_slave_buswidth addr_width;
- dma_addr_t usb_fifo_addr = (MUSB_FIFO_OFFSET(hw_ep->epnum) +
- ux500_channel->controller->phy_base);
struct musb *musb = ux500_channel->controller->private_data;
+ dma_addr_t usb_fifo_addr = (musb->io.fifo_offset(hw_ep->epnum) +
+ ux500_channel->controller->phy_base);
dev_dbg(musb->controller,
"packet_sz=%d, mode=%d, dma_addr=0x%llx, len=%d is_tx=%d\n",
@@ -121,8 +121,7 @@ static bool ux500_configure_channel(struct dma_channel *channel,
slave_conf.dst_maxburst = 16;
slave_conf.device_fc = false;
- dma_chan->device->device_control(dma_chan, DMA_SLAVE_CONFIG,
- (unsigned long) &slave_conf);
+ dmaengine_slave_config(dma_chan, &slave_conf);
dma_desc = dmaengine_prep_slave_sg(dma_chan, &sg, 1, direction,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
@@ -246,9 +245,7 @@ static int ux500_dma_channel_abort(struct dma_channel *channel)
musb_writew(epio, MUSB_RXCSR, csr);
}
- ux500_channel->dma_chan->device->
- device_control(ux500_channel->dma_chan,
- DMA_TERMINATE_ALL, 0);
+ dmaengine_terminate_all(ux500_channel->dma_chan);
channel->status = MUSB_DMA_STATUS_FREE;
}
return 0;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.