2013-06-12 09:24:21

by George Cherian

[permalink] [raw]
Subject: [PATCH v2 0/3] Adding AM437x support to dwc3-omap glue

Initial patch set to add support for dwc3 in am437x platform.
This patch series addresses the regiter map differences between
OMAP5 and AM437x, to re-use the same driver.

AM437x and OMAP5 dwc3 subsytem have different register map.
Major differences are as follows.

OMAP5 has one main interrupt and one misc interrupt
Aegis has four main interrupts and one misc interrupt.

Miscellanous Interrupt offsets are changed.
UTMI OTG Control and Status Registers offsets are changed.
DEBUG Configuration and Status Registers are changed.

The main intend of the patch is to re-use the same wrapper driver
for both OMAP5 and AM437x, by using the x_major in revision
register and adjusting the offsets.

changes from v1:
- Added compatible for AM437X since x_major is same for OMAP5 and AM437x
- Added proper wrappers to dwc3_omap_readl/writel


George Cherian (3):
usb: dwc3: omap: Adding am437x specific register map changes
usb: dwc3: omap: Intialize the register offset values for OMAP5 and
AM437x
usb: dwc3: omap: Adds dwc3_omap_readl/writel wrappers

drivers/usb/dwc3/dwc3-omap.c | 234 ++++++++++++++++++++++++++++++++-----------
1 file changed, 178 insertions(+), 56 deletions(-)

--
1.8.1.4


2013-06-12 09:24:27

by George Cherian

[permalink] [raw]
Subject: [PATCH v2 1/3] usb: dwc3: omap: Adding am437x specific register map changes

AM437x and OMAP5 dwc3 subsytem have different register map.
Major differences are as follows.

OMAP5 has one main interrupt and one misc interrupt
Aegis has four main interrupts and one misc interrupt.

Miscellanous Interrupt offsets are changed.
UTMI OTG Control and Status Registers offsets are changed.
DEBUG Configuration and Status Registers are changed.

The main intend of the patch is to re-use the same wrapper driver
for both OMAP5 and AM437x, by using the x_major in revision
register and adjusting the offsets.

This patch adds the register map offsets and adds offset variables
in struct dwc3_omap to cache the offsets

Signed-off-by: George Cherian <[email protected]>
---
drivers/usb/dwc3/dwc3-omap.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 34638b9..a354b4c 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -122,6 +122,12 @@ struct dwc3_omap {
void __iomem *base;

u32 utmi_otg_status;
+ u32 utmi_otg_offset;
+ u32 irqmisc_offset;
+ u32 irq_eoi_offset;
+ u32 debug_offset;
+ u32 irq0_offset;
+ u32 revision;

u32 dma_status:1;
};
--
1.8.1.4

2013-06-12 09:24:31

by George Cherian

[permalink] [raw]
Subject: [PATCH v2 3/3] usb: dwc3: omap: Adds dwc3_omap_readl/writel wrappers

This patch adds wrappers to dwc3_omap_readl/writel calls to accomodate
both OMAP5 and AM437x reg maps (It uses the cached register offsets).
Also renames OMAP5 IRQ1 as IRQMISC and IRQ1 bits as IRQMISC bits.

Signed-off-by: George Cherian <[email protected]>
---
drivers/usb/dwc3/dwc3-omap.c | 173 +++++++++++++++++++++++++++++--------------
1 file changed, 116 insertions(+), 57 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index f204d18..4f565d7 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -67,10 +67,18 @@
#define USBOTGSS_IRQENABLE_SET_0 0x002c
#define USBOTGSS_IRQENABLE_CLR_0 0x0030
#define USBOTGSS_IRQ0_OFFSET 0x0004
-#define USBOTGSS_IRQSTATUS_RAW_1 0x0034
-#define USBOTGSS_IRQSTATUS_1 0x0038
-#define USBOTGSS_IRQENABLE_SET_1 0x003c
-#define USBOTGSS_IRQENABLE_CLR_1 0x0040
+#define USBOTGSS_IRQSTATUS_RAW_1 0x0030
+#define USBOTGSS_IRQSTATUS_1 0x0034
+#define USBOTGSS_IRQENABLE_SET_1 0x0038
+#define USBOTGSS_IRQENABLE_CLR_1 0x003c
+#define USBOTGSS_IRQSTATUS_RAW_2 0x0040
+#define USBOTGSS_IRQSTATUS_2 0x0044
+#define USBOTGSS_IRQENABLE_SET_2 0x0048
+#define USBOTGSS_IRQENABLE_CLR_2 0x004c
+#define USBOTGSS_IRQSTATUS_RAW_3 0x0050
+#define USBOTGSS_IRQSTATUS_3 0x0054
+#define USBOTGSS_IRQENABLE_SET_3 0x0058
+#define USBOTGSS_IRQENABLE_CLR_3 0x005c
#define USBOTGSS_IRQSTATUS_EOI_MISC 0x0030
#define USBOTGSS_IRQSTATUS_RAW_MISC 0x0034
#define USBOTGSS_IRQSTATUS_MISC 0x0038
@@ -102,17 +110,17 @@
/* IRQS0 BITS */
#define USBOTGSS_IRQO_COREIRQ_ST (1 << 0)

-/* IRQ1 BITS */
-#define USBOTGSS_IRQ1_DMADISABLECLR (1 << 17)
-#define USBOTGSS_IRQ1_OEVT (1 << 16)
-#define USBOTGSS_IRQ1_DRVVBUS_RISE (1 << 13)
-#define USBOTGSS_IRQ1_CHRGVBUS_RISE (1 << 12)
-#define USBOTGSS_IRQ1_DISCHRGVBUS_RISE (1 << 11)
-#define USBOTGSS_IRQ1_IDPULLUP_RISE (1 << 8)
-#define USBOTGSS_IRQ1_DRVVBUS_FALL (1 << 5)
-#define USBOTGSS_IRQ1_CHRGVBUS_FALL (1 << 4)
-#define USBOTGSS_IRQ1_DISCHRGVBUS_FALL (1 << 3)
-#define USBOTGSS_IRQ1_IDPULLUP_FALL (1 << 0)
+/* IRQMISC BITS */
+#define USBOTGSS_IRQMISC_DMADISABLECLR (1 << 17)
+#define USBOTGSS_IRQMISC_OEVT (1 << 16)
+#define USBOTGSS_IRQMISC_DRVVBUS_RISE (1 << 13)
+#define USBOTGSS_IRQMISC_CHRGVBUS_RISE (1 << 12)
+#define USBOTGSS_IRQMISC_DISCHRGVBUS_RISE (1 << 11)
+#define USBOTGSS_IRQMISC_IDPULLUP_RISE (1 << 8)
+#define USBOTGSS_IRQMISC_DRVVBUS_FALL (1 << 5)
+#define USBOTGSS_IRQMISC_CHRGVBUS_FALL (1 << 4)
+#define USBOTGSS_IRQMISC_DISCHRGVBUS_FALL (1 << 3)
+#define USBOTGSS_IRQMISC_IDPULLUP_FALL (1 << 0)

/* UTMI_OTG_CTRL REGISTER */
#define USBOTGSS_UTMI_OTG_CTRL_DRVVBUS (1 << 5)
@@ -161,6 +169,58 @@ static inline void dwc3_omap_writel(void __iomem *base, u32 offset, u32 value)
writel(value, base + offset);
}

+static u32 dwc3_omap_read_utmi_status(struct dwc3_omap *omap)
+{
+ return dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS +
+ omap->utmi_otg_offset);
+}
+
+static void dwc3_omap_write_utmi_status(struct dwc3_omap *omap, u32 value)
+{
+ dwc3_omap_writel(omap->base, USBOTGSS_UTMI_OTG_STATUS +
+ omap->utmi_otg_offset, value);
+
+}
+
+static u32 dwc3_omap_read_irq0_status(struct dwc3_omap *omap)
+{
+ return dwc3_omap_readl(omap->base, USBOTGSS_IRQSTATUS_0 -
+ omap->irq0_offset);
+}
+
+static void dwc3_omap_write_irq0_status(struct dwc3_omap *omap, u32 value)
+{
+ dwc3_omap_writel(omap->base, USBOTGSS_IRQSTATUS_0 -
+ omap->irq0_offset, value);
+
+}
+
+static u32 dwc3_omap_read_irqmisc_status(struct dwc3_omap *omap)
+{
+ return dwc3_omap_readl(omap->base, USBOTGSS_IRQSTATUS_MISC +
+ omap->irqmisc_offset);
+}
+
+static void dwc3_omap_write_irqmisc_status(struct dwc3_omap *omap, u32 value)
+{
+ dwc3_omap_writel(omap->base, USBOTGSS_IRQSTATUS_MISC +
+ omap->irqmisc_offset, value);
+
+}
+
+static void dwc3_omap_write_irqmisc_set(struct dwc3_omap *omap, u32 value)
+{
+ dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_MISC +
+ omap->irqmisc_offset, value);
+
+}
+
+static void dwc3_omap_write_irq0_set(struct dwc3_omap *omap, u32 value)
+{
+ dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_0 -
+ omap->irq0_offset, value);
+}
+
int dwc3_omap_mailbox(enum omap_dwc3_vbus_id_status status)
{
u32 val;
@@ -173,38 +233,38 @@ int dwc3_omap_mailbox(enum omap_dwc3_vbus_id_status status)
case OMAP_DWC3_ID_GROUND:
dev_dbg(omap->dev, "ID GND\n");

- val = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS);
+ val = dwc3_omap_read_utmi_status(omap);
val &= ~(USBOTGSS_UTMI_OTG_STATUS_IDDIG
| USBOTGSS_UTMI_OTG_STATUS_VBUSVALID
| USBOTGSS_UTMI_OTG_STATUS_SESSEND);
val |= USBOTGSS_UTMI_OTG_STATUS_SESSVALID
| USBOTGSS_UTMI_OTG_STATUS_POWERPRESENT;
- dwc3_omap_writel(omap->base, USBOTGSS_UTMI_OTG_STATUS, val);
+ dwc3_omap_write_utmi_status(omap, val);
break;

case OMAP_DWC3_VBUS_VALID:
dev_dbg(omap->dev, "VBUS Connect\n");

- val = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS);
+ val = dwc3_omap_read_utmi_status(omap);
val &= ~USBOTGSS_UTMI_OTG_STATUS_SESSEND;
val |= USBOTGSS_UTMI_OTG_STATUS_IDDIG
| USBOTGSS_UTMI_OTG_STATUS_VBUSVALID
| USBOTGSS_UTMI_OTG_STATUS_SESSVALID
| USBOTGSS_UTMI_OTG_STATUS_POWERPRESENT;
- dwc3_omap_writel(omap->base, USBOTGSS_UTMI_OTG_STATUS, val);
+ dwc3_omap_write_utmi_status(omap, val);
break;

case OMAP_DWC3_ID_FLOAT:
case OMAP_DWC3_VBUS_OFF:
dev_dbg(omap->dev, "VBUS Disconnect\n");

- val = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS);
+ val = dwc3_omap_read_utmi_status(omap);
val &= ~(USBOTGSS_UTMI_OTG_STATUS_SESSVALID
| USBOTGSS_UTMI_OTG_STATUS_VBUSVALID
| USBOTGSS_UTMI_OTG_STATUS_POWERPRESENT);
val |= USBOTGSS_UTMI_OTG_STATUS_SESSEND
| USBOTGSS_UTMI_OTG_STATUS_IDDIG;
- dwc3_omap_writel(omap->base, USBOTGSS_UTMI_OTG_STATUS, val);
+ dwc3_omap_write_utmi_status(omap, val);
break;

default:
@@ -222,44 +282,45 @@ static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap)

spin_lock(&omap->lock);

- reg = dwc3_omap_readl(omap->base, USBOTGSS_IRQSTATUS_1);
+ reg = dwc3_omap_read_irqmisc_status(omap);

- if (reg & USBOTGSS_IRQ1_DMADISABLECLR) {
+ if (reg & USBOTGSS_IRQMISC_DMADISABLECLR) {
dev_dbg(omap->dev, "DMA Disable was Cleared\n");
omap->dma_status = false;
}

- if (reg & USBOTGSS_IRQ1_OEVT)
+ if (reg & USBOTGSS_IRQMISC_OEVT)
dev_dbg(omap->dev, "OTG Event\n");

- if (reg & USBOTGSS_IRQ1_DRVVBUS_RISE)
+ if (reg & USBOTGSS_IRQMISC_DRVVBUS_RISE)
dev_dbg(omap->dev, "DRVVBUS Rise\n");

- if (reg & USBOTGSS_IRQ1_CHRGVBUS_RISE)
+ if (reg & USBOTGSS_IRQMISC_CHRGVBUS_RISE)
dev_dbg(omap->dev, "CHRGVBUS Rise\n");

- if (reg & USBOTGSS_IRQ1_DISCHRGVBUS_RISE)
+ if (reg & USBOTGSS_IRQMISC_DISCHRGVBUS_RISE)
dev_dbg(omap->dev, "DISCHRGVBUS Rise\n");

- if (reg & USBOTGSS_IRQ1_IDPULLUP_RISE)
+ if (reg & USBOTGSS_IRQMISC_IDPULLUP_RISE)
dev_dbg(omap->dev, "IDPULLUP Rise\n");

- if (reg & USBOTGSS_IRQ1_DRVVBUS_FALL)
+ if (reg & USBOTGSS_IRQMISC_DRVVBUS_FALL)
dev_dbg(omap->dev, "DRVVBUS Fall\n");

- if (reg & USBOTGSS_IRQ1_CHRGVBUS_FALL)
+ if (reg & USBOTGSS_IRQMISC_CHRGVBUS_FALL)
dev_dbg(omap->dev, "CHRGVBUS Fall\n");

- if (reg & USBOTGSS_IRQ1_DISCHRGVBUS_FALL)
+ if (reg & USBOTGSS_IRQMISC_DISCHRGVBUS_FALL)
dev_dbg(omap->dev, "DISCHRGVBUS Fall\n");

- if (reg & USBOTGSS_IRQ1_IDPULLUP_FALL)
+ if (reg & USBOTGSS_IRQMISC_IDPULLUP_FALL)
dev_dbg(omap->dev, "IDPULLUP Fall\n");

- dwc3_omap_writel(omap->base, USBOTGSS_IRQSTATUS_1, reg);
+ dwc3_omap_write_irqmisc_status(omap, reg);
+
+ reg = dwc3_omap_read_irq0_status(omap);

- reg = dwc3_omap_readl(omap->base, USBOTGSS_IRQSTATUS_0);
- dwc3_omap_writel(omap->base, USBOTGSS_IRQSTATUS_0, reg);
+ dwc3_omap_write_irq0_status(omap, reg);

spin_unlock(&omap->lock);

@@ -281,26 +342,26 @@ static void dwc3_omap_enable_irqs(struct dwc3_omap *omap)

/* enable all IRQs */
reg = USBOTGSS_IRQO_COREIRQ_ST;
- dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_0, reg);
-
- reg = (USBOTGSS_IRQ1_OEVT |
- USBOTGSS_IRQ1_DRVVBUS_RISE |
- USBOTGSS_IRQ1_CHRGVBUS_RISE |
- USBOTGSS_IRQ1_DISCHRGVBUS_RISE |
- USBOTGSS_IRQ1_IDPULLUP_RISE |
- USBOTGSS_IRQ1_DRVVBUS_FALL |
- USBOTGSS_IRQ1_CHRGVBUS_FALL |
- USBOTGSS_IRQ1_DISCHRGVBUS_FALL |
- USBOTGSS_IRQ1_IDPULLUP_FALL);
-
- dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_1, reg);
+ dwc3_omap_write_irq0_set(omap, reg);
+
+ reg = (USBOTGSS_IRQMISC_OEVT |
+ USBOTGSS_IRQMISC_DRVVBUS_RISE |
+ USBOTGSS_IRQMISC_CHRGVBUS_RISE |
+ USBOTGSS_IRQMISC_DISCHRGVBUS_RISE |
+ USBOTGSS_IRQMISC_IDPULLUP_RISE |
+ USBOTGSS_IRQMISC_DRVVBUS_FALL |
+ USBOTGSS_IRQMISC_CHRGVBUS_FALL |
+ USBOTGSS_IRQMISC_DISCHRGVBUS_FALL |
+ USBOTGSS_IRQMISC_IDPULLUP_FALL);
+
+ dwc3_omap_write_irqmisc_set(omap, reg);
}

static void dwc3_omap_disable_irqs(struct dwc3_omap *omap)
{
/* disable all IRQs */
- dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_1, 0x00);
- dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_0, 0x00);
+ dwc3_omap_write_irqmisc_set(omap, 0x00);
+ dwc3_omap_write_irq0_set(omap, 0x00);
}

static u64 dwc3_omap_dma_mask = DMA_BIT_MASK(32);
@@ -378,7 +439,7 @@ static int dwc3_omap_probe(struct platform_device *pdev)
omap->revision = reg;
x_major = USBOTGSS_REVISION_XMAJOR(reg);

- /* Differentiate between OMAP5,AM437x and others*/
+ /* Differentiate between OMAP5 and AM437x */
switch (x_major) {
case USBOTGSS_REVISION_XMAJOR1:
case USBOTGSS_REVISION_XMAJOR2:
@@ -410,7 +471,7 @@ static int dwc3_omap_probe(struct platform_device *pdev)
omap->debug_offset = USBOTGSS_DEBUG_OFFSET;
}

- reg = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS);
+ reg = dwc3_omap_read_utmi_status(omap);

of_property_read_u32(node, "utmi-mode", &utmi_mode);

@@ -425,7 +486,7 @@ static int dwc3_omap_probe(struct platform_device *pdev)
dev_dbg(dev, "UNKNOWN utmi mode %d\n", utmi_mode);
}

- dwc3_omap_writel(omap->base, USBOTGSS_UTMI_OTG_STATUS, reg);
+ dwc3_omap_write_utmi_status(omap, reg);

/* check the DMA Status */
reg = dwc3_omap_readl(omap->base, USBOTGSS_SYSCONFIG);
@@ -494,8 +555,7 @@ static int dwc3_omap_suspend(struct device *dev)
{
struct dwc3_omap *omap = dev_get_drvdata(dev);

- omap->utmi_otg_status = dwc3_omap_readl(omap->base,
- USBOTGSS_UTMI_OTG_STATUS);
+ omap->utmi_otg_status = dwc3_omap_read_utmi_status(omap);

return 0;
}
@@ -504,8 +564,7 @@ static int dwc3_omap_resume(struct device *dev)
{
struct dwc3_omap *omap = dev_get_drvdata(dev);

- dwc3_omap_writel(omap->base, USBOTGSS_UTMI_OTG_STATUS,
- omap->utmi_otg_status);
+ dwc3_omap_write_utmi_status(omap, omap->utmi_otg_status);

pm_runtime_disable(dev);
pm_runtime_set_active(dev);
--
1.8.1.4

2013-06-12 09:25:00

by George Cherian

[permalink] [raw]
Subject: [PATCH v2 2/3] usb: dwc3: omap: Intialize the register offset values for OMAP5 and AM437x

This patch Initializes the register offset values depending
on the X_MAJOR of USBOTGSS_REVISION register. Also adds register
offset defines and new debug register defines.

X_MAJOR is 2 for both OMAP5 and AM437x. But both have different glue register
layout. Differentiate AM437x using dt compatible.
Register offsets are cached in dwc3_omap struct for reg reads and writes.

Signed-off-by: George Cherian <[email protected]>
---
drivers/usb/dwc3/dwc3-omap.c | 57 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 57 insertions(+)

diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index a354b4c..f204d18 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -61,21 +61,38 @@
#define USBOTGSS_REVISION 0x0000
#define USBOTGSS_SYSCONFIG 0x0010
#define USBOTGSS_IRQ_EOI 0x0020
+#define USBOTGSS_EOI_OFFSET 0x0008
#define USBOTGSS_IRQSTATUS_RAW_0 0x0024
#define USBOTGSS_IRQSTATUS_0 0x0028
#define USBOTGSS_IRQENABLE_SET_0 0x002c
#define USBOTGSS_IRQENABLE_CLR_0 0x0030
+#define USBOTGSS_IRQ0_OFFSET 0x0004
#define USBOTGSS_IRQSTATUS_RAW_1 0x0034
#define USBOTGSS_IRQSTATUS_1 0x0038
#define USBOTGSS_IRQENABLE_SET_1 0x003c
#define USBOTGSS_IRQENABLE_CLR_1 0x0040
+#define USBOTGSS_IRQSTATUS_EOI_MISC 0x0030
+#define USBOTGSS_IRQSTATUS_RAW_MISC 0x0034
+#define USBOTGSS_IRQSTATUS_MISC 0x0038
+#define USBOTGSS_IRQENABLE_SET_MISC 0x003c
+#define USBOTGSS_IRQENABLE_CLR_MISC 0x0040
+#define USBOTGSS_IRQMISC_OFFSET 0x03fc
#define USBOTGSS_UTMI_OTG_CTRL 0x0080
#define USBOTGSS_UTMI_OTG_STATUS 0x0084
+#define USBOTGSS_UTMI_OTG_OFFSET 0x0480
+#define USBOTGSS_TXFIFO_DEPTH 0x0508
+#define USBOTGSS_RXFIFO_DEPTH 0x050c
#define USBOTGSS_MMRAM_OFFSET 0x0100
#define USBOTGSS_FLADJ 0x0104
#define USBOTGSS_DEBUG_CFG 0x0108
#define USBOTGSS_DEBUG_DATA 0x010c
+#define USBOTGSS_DEV_EBC_EN 0x0110
+#define USBOTGSS_DEBUG_OFFSET 0x0600

+/* REVISION REGISTER */
+#define USBOTGSS_REVISION_XMAJOR(reg) ((reg >> 8) & 0x7)
+#define USBOTGSS_REVISION_XMAJOR1 1
+#define USBOTGSS_REVISION_XMAJOR2 2
/* SYSCONFIG REGISTER */
#define USBOTGSS_SYSCONFIG_DMADISABLE (1 << 16)

@@ -300,6 +317,7 @@ static int dwc3_omap_probe(struct platform_device *pdev)
int irq;

int utmi_mode = 0;
+ int x_major;

u32 reg;

@@ -356,6 +374,42 @@ static int dwc3_omap_probe(struct platform_device *pdev)
return ret;
}

+ reg = dwc3_omap_readl(omap->base, USBOTGSS_REVISION);
+ omap->revision = reg;
+ x_major = USBOTGSS_REVISION_XMAJOR(reg);
+
+ /* Differentiate between OMAP5,AM437x and others*/
+ switch (x_major) {
+ case USBOTGSS_REVISION_XMAJOR1:
+ case USBOTGSS_REVISION_XMAJOR2:
+ omap->irq_eoi_offset = 0;
+ omap->irq0_offset = 0;
+ omap->irqmisc_offset = 0;
+ omap->utmi_otg_offset = 0;
+ omap->debug_offset = 0;
+ break;
+ default:
+ /* Default to the latest revision */
+ omap->irq_eoi_offset = USBOTGSS_EOI_OFFSET;
+ omap->irq0_offset = USBOTGSS_IRQ0_OFFSET;
+ omap->irqmisc_offset = USBOTGSS_IRQMISC_OFFSET;
+ omap->utmi_otg_offset = USBOTGSS_UTMI_OTG_OFFSET;
+ omap->debug_offset = USBOTGSS_DEBUG_OFFSET;
+ break;
+ }
+
+ /* For OMAP5(ES2.0) and AM437x x_major is 2 even though there are
+ * changes in wrapper registers, Using dt compatible for aegis
+ */
+
+ if (of_device_is_compatible(node, "ti,am437x-dwc3")) {
+ omap->irq_eoi_offset = USBOTGSS_EOI_OFFSET;
+ omap->irq0_offset = USBOTGSS_IRQ0_OFFSET;
+ omap->irqmisc_offset = USBOTGSS_IRQMISC_OFFSET;
+ omap->utmi_otg_offset = USBOTGSS_UTMI_OTG_OFFSET;
+ omap->debug_offset = USBOTGSS_DEBUG_OFFSET;
+ }
+
reg = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS);

of_property_read_u32(node, "utmi-mode", &utmi_mode);
@@ -412,6 +466,9 @@ static const struct of_device_id of_dwc3_match[] = {
{
.compatible = "ti,dwc3"
},
+ {
+ .compatible = "ti,am437x-dwc3"
+ },
{ },
};
MODULE_DEVICE_TABLE(of, of_dwc3_match);
--
1.8.1.4