[PATCH 2/7] usb: gadget: pxa25x_udc cleanup

Arnd Bergmann
2016-01-28T16:17:03Z

This removes the dependency on the mach/hardware.h header file
from the pxa25x_udc driver after the register definitions were
already unified in the previous patch.

Following the model of pxa27x_udc (and basically all other drivers
in the kernel), we define the register numbers as offsets from
the register base address and use accessor functions to read/write
them.

For the moment, this still leaves the direct pointer dereference
in place, instead of using readl/writel, so this patch should
not be changing the behavior of the driver, other than using
ioremap() on the platform resource to replace the hardcoded
virtual address pointers.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/usb/gadget/udc/pxa25x_udc.c | 468 +++++++++++++++++++++---------------
drivers/usb/gadget/udc/pxa25x_udc.h | 10 +-
2 files changed, 275 insertions(+), 203 deletions(-)

diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c
index 26537f50374d..5db429f3cfb2 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -48,70 +48,63 @@
#include <linux/usb/gadget.h>
#include <linux/usb/otg.h>

-#include <mach/hardware.h>
-
#ifdef CONFIG_ARCH_LUBBOCK
#include <mach/lubbock.h>
#endif

-#ifdef CONFIG_ARCH_IXP4XX
-#define __UDC_REG(x) (*((volatile u32 *)(IXP4XX_USB_BASE_VIRT + (x))))
-#endif
-
-#ifdef CONFIG_ARCH_PXA
-#define __UDC_REG(x) __REG(0x40600000 + (x))
-#endif
-
-#define UDCCR __UDC_REG(0x0000) /* UDC Control Register */
-#define UDC_RES1 __UDC_REG(0x0004) /* UDC Undocumented - Reserved1 */
-#define UDC_RES2 __UDC_REG(0x0008) /* UDC Undocumented - Reserved2 */
-#define UDC_RES3 __UDC_REG(0x000C) /* UDC Undocumented - Reserved3 */
-#define UDCCS0 __UDC_REG(0x0010) /* UDC Endpoint 0 Control/Status Register */
-#define UDCCS1 __UDC_REG(0x0014) /* UDC Endpoint 1 (IN) Control/Status Register */
-#define UDCCS2 __UDC_REG(0x0018) /* UDC Endpoint 2 (OUT) Control/Status Register */
-#define UDCCS3 __UDC_REG(0x001C) /* UDC Endpoint 3 (IN) Control/Status Register */
-#define UDCCS4 __UDC_REG(0x0020) /* UDC Endpoint 4 (OUT) Control/Status Register */
-#define UDCCS5 __UDC_REG(0x0024) /* UDC Endpoint 5 (Interrupt) Control/Status Register */
-#define UDCCS6 __UDC_REG(0x0028) /* UDC Endpoint 6 (IN) Control/Status Register */
-#define UDCCS7 __UDC_REG(0x002C) /* UDC Endpoint 7 (OUT) Control/Status Register */
-#define UDCCS8 __UDC_REG(0x0030) /* UDC Endpoint 8 (IN) Control/Status Register */
-#define UDCCS9 __UDC_REG(0x0034) /* UDC Endpoint 9 (OUT) Control/Status Register */
-#define UDCCS10 __UDC_REG(0x0038) /* UDC Endpoint 10 (Interrupt) Control/Status Register */
-#define UDCCS11 __UDC_REG(0x003C) /* UDC Endpoint 11 (IN) Control/Status Register */
-#define UDCCS12 __UDC_REG(0x0040) /* UDC Endpoint 12 (OUT) Control/Status Register */
-#define UDCCS13 __UDC_REG(0x0044) /* UDC Endpoint 13 (IN) Control/Status Register */
-#define UDCCS14 __UDC_REG(0x0048) /* UDC Endpoint 14 (OUT) Control/Status Register */
-#define UDCCS15 __UDC_REG(0x004C) /* UDC Endpoint 15 (Interrupt) Control/Status Register */
-#define UFNRH __UDC_REG(0x0060) /* UDC Frame Number Register High */
-#define UFNRL __UDC_REG(0x0064) /* UDC Frame Number Register Low */
-#define UBCR2 __UDC_REG(0x0068) /* UDC Byte Count Reg 2 */
-#define UBCR4 __UDC_REG(0x006c) /* UDC Byte Count Reg 4 */
-#define UBCR7 __UDC_REG(0x0070) /* UDC Byte Count Reg 7 */
-#define UBCR9 __UDC_REG(0x0074) /* UDC Byte Count Reg 9 */
-#define UBCR12 __UDC_REG(0x0078) /* UDC Byte Count Reg 12 */
-#define UBCR14 __UDC_REG(0x007c) /* UDC Byte Count Reg 14 */
-#define UDDR0 __UDC_REG(0x0080) /* UDC Endpoint 0 Data Register */
-#define UDDR1 __UDC_REG(0x0100) /* UDC Endpoint 1 Data Register */
-#define UDDR2 __UDC_REG(0x0180) /* UDC Endpoint 2 Data Register */
-#define UDDR3 __UDC_REG(0x0200) /* UDC Endpoint 3 Data Register */
-#define UDDR4 __UDC_REG(0x0400) /* UDC Endpoint 4 Data Register */
-#define UDDR5 __UDC_REG(0x00A0) /* UDC Endpoint 5 Data Register */
-#define UDDR6 __UDC_REG(0x0600) /* UDC Endpoint 6 Data Register */
-#define UDDR7 __UDC_REG(0x0680) /* UDC Endpoint 7 Data Register */
-#define UDDR8 __UDC_REG(0x0700) /* UDC Endpoint 8 Data Register */
-#define UDDR9 __UDC_REG(0x0900) /* UDC Endpoint 9 Data Register */
-#define UDDR10 __UDC_REG(0x00C0) /* UDC Endpoint 10 Data Register */
-#define UDDR11 __UDC_REG(0x0B00) /* UDC Endpoint 11 Data Register */
-#define UDDR12 __UDC_REG(0x0B80) /* UDC Endpoint 12 Data Register */
-#define UDDR13 __UDC_REG(0x0C00) /* UDC Endpoint 13 Data Register */
-#define UDDR14 __UDC_REG(0x0E00) /* UDC Endpoint 14 Data Register */
-#define UDDR15 __UDC_REG(0x00E0) /* UDC Endpoint 15 Data Register */
-
-#define UICR0 __UDC_REG(0x0050) /* UDC Interrupt Control Register 0 */
-#define UICR1 __UDC_REG(0x0054) /* UDC Interrupt Control Register 1 */
-
-#define USIR0 __UDC_REG(0x0058) /* UDC Status Interrupt Register 0 */
-#define USIR1 __UDC_REG(0x005C) /* UDC Status Interrupt Register 1 */
+static void __iomem *pxa25x_udc_reg_base;
+#define __UDC_REG(x) (*((volatile u32 *)(pxa25x_udc_reg_base + (x))))
+
+#define UDCCR 0x0000 /* UDC Control Register */
+#define UDC_RES1 0x0004 /* UDC Undocumented - Reserved1 */
+#define UDC_RES2 0x0008 /* UDC Undocumented - Reserved2 */
+#define UDC_RES3 0x000C /* UDC Undocumented - Reserved3 */
+#define UDCCS0 0x0010 /* UDC Endpoint 0 Control/Status Register */
+#define UDCCS1 0x0014 /* UDC Endpoint 1 (IN) Control/Status Register */
+#define UDCCS2 0x0018 /* UDC Endpoint 2 (OUT) Control/Status Register */
+#define UDCCS3 0x001C /* UDC Endpoint 3 (IN) Control/Status Register */
+#define UDCCS4 0x0020 /* UDC Endpoint 4 (OUT) Control/Status Register */
+#define UDCCS5 0x0024 /* UDC Endpoint 5 (Interrupt) Control/Status Register */
+#define UDCCS6 0x0028 /* UDC Endpoint 6 (IN) Control/Status Register */
+#define UDCCS7 0x002C /* UDC Endpoint 7 (OUT) Control/Status Register */
+#define UDCCS8 0x0030 /* UDC Endpoint 8 (IN) Control/Status Register */
+#define UDCCS9 0x0034 /* UDC Endpoint 9 (OUT) Control/Status Register */
+#define UDCCS10 0x0038 /* UDC Endpoint 10 (Interrupt) Control/Status Register */
+#define UDCCS11 0x003C /* UDC Endpoint 11 (IN) Control/Status Register */
+#define UDCCS12 0x0040 /* UDC Endpoint 12 (OUT) Control/Status Register */
+#define UDCCS13 0x0044 /* UDC Endpoint 13 (IN) Control/Status Register */
+#define UDCCS14 0x0048 /* UDC Endpoint 14 (OUT) Control/Status Register */
+#define UDCCS15 0x004C /* UDC Endpoint 15 (Interrupt) Control/Status Register */
+#define UFNRH 0x0060 /* UDC Frame Number Register High */
+#define UFNRL 0x0064 /* UDC Frame Number Register Low */
+#define UBCR2 0x0068 /* UDC Byte Count Reg 2 */
+#define UBCR4 0x006c /* UDC Byte Count Reg 4 */
+#define UBCR7 0x0070 /* UDC Byte Count Reg 7 */
+#define UBCR9 0x0074 /* UDC Byte Count Reg 9 */
+#define UBCR12 0x0078 /* UDC Byte Count Reg 12 */
+#define UBCR14 0x007c /* UDC Byte Count Reg 14 */
+#define UDDR0 0x0080 /* UDC Endpoint 0 Data Register */
+#define UDDR1 0x0100 /* UDC Endpoint 1 Data Register */
+#define UDDR2 0x0180 /* UDC Endpoint 2 Data Register */
+#define UDDR3 0x0200 /* UDC Endpoint 3 Data Register */
+#define UDDR4 0x0400 /* UDC Endpoint 4 Data Register */
+#define UDDR5 0x00A0 /* UDC Endpoint 5 Data Register */
+#define UDDR6 0x0600 /* UDC Endpoint 6 Data Register */
+#define UDDR7 0x0680 /* UDC Endpoint 7 Data Register */
+#define UDDR8 0x0700 /* UDC Endpoint 8 Data Register */
+#define UDDR9 0x0900 /* UDC Endpoint 9 Data Register */
+#define UDDR10 0x00C0 /* UDC Endpoint 10 Data Register */
+#define UDDR11 0x0B00 /* UDC Endpoint 11 Data Register */
+#define UDDR12 0x0B80 /* UDC Endpoint 12 Data Register */
+#define UDDR13 0x0C00 /* UDC Endpoint 13 Data Register */
+#define UDDR14 0x0E00 /* UDC Endpoint 14 Data Register */
+#define UDDR15 0x00E0 /* UDC Endpoint 15 Data Register */
+
+#define UICR0 0x0050 /* UDC Interrupt Control Register 0 */
+#define UICR1 0x0054 /* UDC Interrupt Control Register 1 */
+
+#define USIR0 0x0058 /* UDC Status Interrupt Register 0 */
+#define USIR1 0x005C /* UDC Status Interrupt Register 1 */

#define UDCCR_UDE (1 << 0) /* UDC enable */
#define UDCCR_UDA (1 << 1) /* UDC active */
@@ -299,25 +292,41 @@ static void pullup_on(void)
mach->udc_command(PXA2XX_UDC_CMD_CONNECT);
}

-static void pio_irq_enable(int bEndpointAddress)
+static inline void udc_set_reg(struct pxa25x_udc *dev, u32 reg, u32 uicr)
+{
+ __UDC_REG(reg) = uicr;
+}
+
+static inline u32 udc_get_reg(struct pxa25x_udc *dev, u32 reg)
{
- bEndpointAddress &= 0xf;
+ return __UDC_REG(reg);
+}
+
+static void pio_irq_enable(struct pxa25x_ep *ep)
+{
+ u32 bEndpointAddress = ep->bEndpointAddress & 0xf;
+
if (bEndpointAddress < 8)
- UICR0 &= ~(1 << bEndpointAddress);
+ udc_set_reg(ep->dev, UICR0, udc_get_reg(ep->dev, UICR0) &
+ ~(1 << bEndpointAddress));
else {
bEndpointAddress -= 8;
- UICR1 &= ~(1 << bEndpointAddress);
+ udc_set_reg(ep->dev, UICR1, udc_get_reg(ep->dev, UICR1) &
+ ~(1 << bEndpointAddress));
}
}

-static void pio_irq_disable(int bEndpointAddress)
+static void pio_irq_disable(struct pxa25x_ep *ep)
{
- bEndpointAddress &= 0xf;
+ u32 bEndpointAddress = ep->bEndpointAddress & 0xf;
+
if (bEndpointAddress < 8)
- UICR0 |= 1 << bEndpointAddress;
+ udc_set_reg(ep->dev, UICR0, udc_get_reg(ep->dev, UICR0) |
+ (1 << bEndpointAddress));
else {
bEndpointAddress -= 8;
- UICR1 |= 1 << bEndpointAddress;
+ udc_set_reg(ep->dev, UICR1, udc_get_reg(ep->dev, UICR1) |
+ (1 << bEndpointAddress));
}
}

@@ -326,22 +335,61 @@ static void pio_irq_disable(int bEndpointAddress)
*/
#define UDCCR_MASK_BITS (UDCCR_REM | UDCCR_SRM | UDCCR_UDE)

-static inline void udc_set_mask_UDCCR(int mask)
+static inline void udc_set_mask_UDCCR(struct pxa25x_udc *dev, int mask)
{
- UDCCR = (UDCCR & UDCCR_MASK_BITS) | (mask & UDCCR_MASK_BITS);
+ u32 udccr = __UDC_REG(UDCCR);
+
+ __UDC_REG(UDCCR) = (udccr & UDCCR_MASK_BITS) | (mask & UDCCR_MASK_BITS);
}

-static inline void udc_clear_mask_UDCCR(int mask)
+static inline void udc_clear_mask_UDCCR(struct pxa25x_udc *dev, int mask)
{
- UDCCR = (UDCCR & UDCCR_MASK_BITS) & ~(mask & UDCCR_MASK_BITS);
+ u32 udccr = __UDC_REG(UDCCR);
+
+ __UDC_REG(UDCCR) = (udccr & UDCCR_MASK_BITS) & ~(mask & UDCCR_MASK_BITS);
}

-static inline void udc_ack_int_UDCCR(int mask)
+static inline void udc_ack_int_UDCCR(struct pxa25x_udc *dev, int mask)
{
/* udccr contains the bits we dont want to change */
- __u32 udccr = UDCCR & UDCCR_MASK_BITS;
+ u32 udccr = __UDC_REG(UDCCR) & UDCCR_MASK_BITS;

- UDCCR = udccr | (mask & ~UDCCR_MASK_BITS);
+ __UDC_REG(UDCCR) = udccr | (mask & ~UDCCR_MASK_BITS);
+}
+
+static inline u32 udc_ep_get_UDCCS(struct pxa25x_ep *ep)
+{
+ return __UDC_REG(ep->regoff_udccs);
+}
+
+static inline void udc_ep_set_UDCCS(struct pxa25x_ep *ep, u32 data)
+{
+ __UDC_REG(ep->regoff_udccs) = data;
+}
+
+static inline u32 udc_ep0_get_UDCCS(struct pxa25x_udc *dev)
+{
+ return __UDC_REG(UDCCS0);
+}
+
+static inline void udc_ep0_set_UDCCS(struct pxa25x_udc *dev, u32 data)
+{
+ __UDC_REG(UDCCS0) = data;
+}
+
+static inline u32 udc_ep_get_UDDR(struct pxa25x_ep *ep)
+{
+ return __UDC_REG(ep->regoff_uddr);
+}
+
+static inline void udc_ep_set_UDDR(struct pxa25x_ep *ep, u32 data)
+{
+ __UDC_REG(ep->regoff_uddr) = data;
+}
+
+static inline u32 udc_ep_get_UBCR(struct pxa25x_ep *ep)
+{
+ return __UDC_REG(ep->regoff_ubcr);
}

/*
@@ -507,7 +555,7 @@ static inline void ep0_idle (struct pxa25x_udc *dev)
}

static int
-write_packet(volatile u32 *uddr, struct pxa25x_request *req, unsigned max)
+write_packet(struct pxa25x_ep *ep, struct pxa25x_request *req, unsigned max)
{
u8 *buf;
unsigned length, count;
@@ -521,7 +569,7 @@ write_packet(volatile u32 *uddr, struct pxa25x_request *req, unsigned max)

count = length;
while (likely(count--))
- *uddr = *buf++;
+ udc_ep_set_UDDR(ep, *buf++);

return length;
}
@@ -541,7 +589,7 @@ write_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
unsigned count;
int is_last, is_short;

- count = write_packet(ep->reg_uddr, req, max);
+ count = write_packet(ep, req, max);

/* last packet is usually short (or a zlp) */
if (unlikely (count != max))
@@ -565,15 +613,15 @@ write_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
* double buffering might work. TSP, TPC, and TFS
* bit values are the same for all normal IN endpoints.
*/
- *ep->reg_udccs = UDCCS_BI_TPC;
+ udc_ep_set_UDCCS(ep, UDCCS_BI_TPC);
if (is_short)
- *ep->reg_udccs = UDCCS_BI_TSP;
+ udc_ep_set_UDCCS(ep, UDCCS_BI_TSP);

/* requests complete when all IN data is in the FIFO */
if (is_last) {
done (ep, req, 0);
if (list_empty(&ep->queue))
- pio_irq_disable (ep->bEndpointAddress);
+ pio_irq_disable(ep);
return 1;
}

@@ -581,7 +629,7 @@ write_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
// double buffering is off in the default fifo mode, which
// prevents TFS from being set here.

- } while (*ep->reg_udccs & UDCCS_BI_TFS);
+ } while (udc_ep_get_UDCCS(ep) & UDCCS_BI_TFS);
return 0;
}

@@ -591,20 +639,21 @@ write_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
static inline
void ep0start(struct pxa25x_udc *dev, u32 flags, const char *tag)
{
- UDCCS0 = flags|UDCCS0_SA|UDCCS0_OPR;
- USIR0 = USIR0_IR0;
+ udc_ep0_set_UDCCS(dev, flags|UDCCS0_SA|UDCCS0_OPR);
+ udc_set_reg(dev, USIR0, USIR0_IR0);
dev->req_pending = 0;
DBG(DBG_VERY_NOISY, "%s %s, %02x/%02x\n",
- __func__, tag, UDCCS0, flags);
+ __func__, tag, udc_ep0_get_UDCCS(dev), flags);
}

static int
write_ep0_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
{
+ struct pxa25x_udc *dev = ep->dev;
unsigned count;
int is_short;

- count = write_packet(&UDDR0, req, EP0_FIFO_SIZE);
+ count = write_packet(&dev->ep[0], req, EP0_FIFO_SIZE);
ep->dev->stats.write.bytes += count;

/* last packet "must be" short (or a zlp) */
@@ -617,7 +666,7 @@ write_ep0_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
if (ep->dev->req_pending)
ep0start(ep->dev, UDCCS0_IPR, "short IN");
else
- UDCCS0 = UDCCS0_IPR;
+ udc_ep0_set_UDCCS(dev, UDCCS0_IPR);

count = req->req.length;
done (ep, req, 0);
@@ -633,9 +682,9 @@ write_ep0_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
if (count >= EP0_FIFO_SIZE) {
count = 100;
do {
- if ((UDCCS0 & UDCCS0_OPR) != 0) {
+ if ((udc_ep0_get_UDCCS(dev) & UDCCS0_OPR) != 0) {
/* clear OPR, generate ack */
- UDCCS0 = UDCCS0_OPR;
+ udc_ep0_set_UDCCS(dev, UDCCS0_OPR);
break;
}
count--;
@@ -670,7 +719,7 @@ read_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
* UDCCS_{BO,IO}_RPC are all the same bit value.
* UDCCS_{BO,IO}_RNE are all the same bit value.
*/
- udccs = *ep->reg_udccs;
+ udccs = udc_ep_get_UDCCS(ep);
if (unlikely ((udccs & UDCCS_BO_RPC) == 0))
break;
buf = req->req.buf + req->req.actual;
@@ -679,7 +728,7 @@ read_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)

/* read all bytes from this packet */
if (likely (udccs & UDCCS_BO_RNE)) {
- count = 1 + (0x0ff & *ep->reg_ubcr);
+ count = 1 + (0x0ff & udc_ep_get_UBCR(ep));
req->req.actual += min (count, bufferspace);
} else /* zlp */
count = 0;
@@ -689,7 +738,7 @@ read_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
is_short ? "/S" : "",
req, req->req.actual, req->req.length);
while (likely (count-- != 0)) {
- u8 byte = (u8) *ep->reg_uddr;
+ u8 byte = (u8) udc_ep_get_UDDR(ep);

if (unlikely (bufferspace == 0)) {
/* this happens when the driver's buffer
@@ -705,7 +754,7 @@ read_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
bufferspace--;
}
}
- *ep->reg_udccs = UDCCS_BO_RPC;
+ udc_ep_set_UDCCS(ep, UDCCS_BO_RPC);
/* RPC/RSP/RNE could now reflect the other packet buffer */

/* iso is one request per packet */
@@ -720,7 +769,7 @@ read_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
if (is_short || req->req.actual == req->req.length) {
done (ep, req, 0);
if (list_empty(&ep->queue))
- pio_irq_disable (ep->bEndpointAddress);
+ pio_irq_disable(ep);
return 1;
}

@@ -744,7 +793,7 @@ read_ep0_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
buf = req->req.buf + req->req.actual;
bufferspace = req->req.length - req->req.actual;

- while (UDCCS0 & UDCCS0_RNE) {
+ while (udc_ep_get_UDCCS(ep) & UDCCS0_RNE) {
byte = (u8) UDDR0;

if (unlikely (bufferspace == 0)) {
@@ -762,7 +811,7 @@ read_ep0_fifo (struct pxa25x_ep *ep, struct pxa25x_request *req)
}
}

- UDCCS0 = UDCCS0_OPR | UDCCS0_IPR;
+ udc_ep_set_UDCCS(ep, UDCCS0_OPR | UDCCS0_IPR);

/* completion */
if (req->req.actual >= req->req.length)
@@ -836,8 +885,8 @@ pxa25x_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
DBG(DBG_VERBOSE, "ep0 config ack%s\n",
dev->has_cfr ? "" : " raced");
if (dev->has_cfr)
- UDCCFR = UDCCFR_AREN|UDCCFR_ACM
- |UDCCFR_MB1;
+ udc_set_reg(dev, UDCCFR, UDCCFR_AREN |
+ UDCCFR_ACM | UDCCFR_MB1);
done(ep, req, 0);
dev->ep0state = EP0_END_XFER;
local_irq_restore (flags);
@@ -845,7 +894,7 @@ pxa25x_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
}
if (dev->req_pending)
ep0start(dev, UDCCS0_IPR, "OUT");
- if (length == 0 || ((UDCCS0 & UDCCS0_RNE) != 0
+ if (length == 0 || ((udc_ep0_get_UDCCS(dev) & UDCCS0_RNE) != 0
&& read_ep0_fifo(ep, req))) {
ep0_idle(dev);
done(ep, req, 0);
@@ -860,16 +909,16 @@ pxa25x_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
}
/* can the FIFO can satisfy the request immediately? */
} else if ((ep->bEndpointAddress & USB_DIR_IN) != 0) {
- if ((*ep->reg_udccs & UDCCS_BI_TFS) != 0
+ if ((udc_ep_get_UDCCS(ep) & UDCCS_BI_TFS) != 0
&& write_fifo(ep, req))
req = NULL;
- } else if ((*ep->reg_udccs & UDCCS_BO_RFS) != 0
+ } else if ((udc_ep_get_UDCCS(ep) & UDCCS_BO_RFS) != 0
&& read_fifo(ep, req)) {
req = NULL;
}

if (likely(req && ep->ep.desc))
- pio_irq_enable(ep->bEndpointAddress);
+ pio_irq_enable(ep);
}

/* pio or dma irq handler advances the queue. */
@@ -896,7 +945,7 @@ static void nuke(struct pxa25x_ep *ep, int status)
done(ep, req, status);
}
if (ep->ep.desc)
- pio_irq_disable (ep->bEndpointAddress);
+ pio_irq_disable(ep);
}

@@ -956,14 +1005,14 @@ static int pxa25x_ep_set_halt(struct usb_ep *_ep, int value)
local_irq_save(flags);

if ((ep->bEndpointAddress & USB_DIR_IN) != 0
- && ((*ep->reg_udccs & UDCCS_BI_TFS) == 0
+ && ((udc_ep_get_UDCCS(ep) & UDCCS_BI_TFS) == 0
|| !list_empty(&ep->queue))) {
local_irq_restore(flags);
return -EAGAIN;
}

/* FST bit is the same for control, bulk in, bulk out, interrupt in */
- *ep->reg_udccs = UDCCS_BI_FST|UDCCS_BI_FTF;
+ udc_ep_set_UDCCS(ep, UDCCS_BI_FST|UDCCS_BI_FTF);

/* ep0 needs special care */
if (!ep->ep.desc) {
@@ -975,7 +1024,7 @@ static int pxa25x_ep_set_halt(struct usb_ep *_ep, int value)
} else {
unsigned i;
for (i = 0; i < 1000; i += 20) {
- if (*ep->reg_udccs & UDCCS_BI_SST)
+ if (udc_ep_get_UDCCS(ep) & UDCCS_BI_SST)
break;
udelay(20);
}
@@ -999,10 +1048,10 @@ static int pxa25x_ep_fifo_status(struct usb_ep *_ep)
if ((ep->bEndpointAddress & USB_DIR_IN) != 0)
return -EOPNOTSUPP;
if (ep->dev->gadget.speed == USB_SPEED_UNKNOWN
- || (*ep->reg_udccs & UDCCS_BO_RFS) == 0)
+ || (udc_ep_get_UDCCS(ep) & UDCCS_BO_RFS) == 0)
return 0;
else
- return (*ep->reg_ubcr & 0xfff) + 1;
+ return (udc_ep_get_UBCR(ep) & 0xfff) + 1;
}

static void pxa25x_ep_fifo_flush(struct usb_ep *_ep)
@@ -1019,15 +1068,15 @@ static void pxa25x_ep_fifo_flush(struct usb_ep *_ep)

/* for OUT, just read and discard the FIFO contents. */
if ((ep->bEndpointAddress & USB_DIR_IN) == 0) {
- while (((*ep->reg_udccs) & UDCCS_BO_RNE) != 0)
- (void) *ep->reg_uddr;
+ while (((udc_ep_get_UDCCS(ep)) & UDCCS_BO_RNE) != 0)
+ (void)udc_ep_get_UDDR(ep);
return;
}

/* most IN status is the same, but ISO can't stall */
- *ep->reg_udccs = UDCCS_BI_TPC|UDCCS_BI_FTF|UDCCS_BI_TUR
+ udc_ep_set_UDCCS(ep, UDCCS_BI_TPC|UDCCS_BI_FTF|UDCCS_BI_TUR
| (ep->bmAttributes == USB_ENDPOINT_XFER_ISOC
- ? 0 : UDCCS_BI_SST);
+ ? 0 : UDCCS_BI_SST));
}

@@ -1054,15 +1103,23 @@ static struct usb_ep_ops pxa25x_ep_ops = {

static int pxa25x_udc_get_frame(struct usb_gadget *_gadget)
{
- return ((UFNRH & 0x07) << 8) | (UFNRL & 0xff);
+ struct pxa25x_udc *dev;
+
+ dev = container_of(_gadget, struct pxa25x_udc, gadget);
+ return ((udc_get_reg(dev, UFNRH) & 0x07) << 8) |
+ (udc_get_reg(dev, UFNRL) & 0xff);
}

static int pxa25x_udc_wakeup(struct usb_gadget *_gadget)
{
+ struct pxa25x_udc *udc;
+
+ udc = container_of(_gadget, struct pxa25x_udc, gadget);
+
/* host may not have enabled remote wakeup */
- if ((UDCCS0 & UDCCS0_DRWF) == 0)
+ if ((udc_ep0_get_UDCCS(udc) & UDCCS0_DRWF) == 0)
return -EHOSTUNREACH;
- udc_set_mask_UDCCR(UDCCR_RSM);
+ udc_set_mask_UDCCR(udc, UDCCR_RSM);
return 0;
}

@@ -1183,9 +1240,11 @@ udc_seq_show(struct seq_file *m, void *_d)
/* registers for device and ep0 */
seq_printf(m,
"uicr %02X.%02X, usir %02X.%02x, ufnr %02X.%02X\n",
- UICR1, UICR0, USIR1, USIR0, UFNRH, UFNRL);
+ udc_get_reg(dev, UICR1), udc_get_reg(dev, UICR0),
+ udc_get_reg(dev, USIR1), udc_get_reg(dev, USIR0),
+ udc_get_reg(dev, UFNRH), udc_get_reg(dev, UFNRL));

- tmp = UDCCR;
+ tmp = udc_get_reg(dev, UDCCR);
seq_printf(m,
"udccr %02X =%s%s%s%s%s%s%s%s\n", tmp,
(tmp & UDCCR_REM) ? " rem" : "",
@@ -1197,7 +1256,7 @@ udc_seq_show(struct seq_file *m, void *_d)
(tmp & UDCCR_UDA) ? " uda" : "",
(tmp & UDCCR_UDE) ? " ude" : "");

- tmp = UDCCS0;
+ tmp = udc_ep0_get_UDCCS(dev);
seq_printf(m,
"udccs0 %02X =%s%s%s%s%s%s%s%s\n", tmp,
(tmp & UDCCS0_SA) ? " sa" : "",
@@ -1210,7 +1269,7 @@ udc_seq_show(struct seq_file *m, void *_d)
(tmp & UDCCS0_OPR) ? " opr" : "");

if (dev->has_cfr) {
- tmp = UDCCFR;
+ tmp = udc_get_reg(dev, UDCCFR);
seq_printf(m,
"udccfr %02X =%s%s\n", tmp,
(tmp & UDCCFR_AREN) ? " aren" : "",
@@ -1236,7 +1295,7 @@ udc_seq_show(struct seq_file *m, void *_d)
desc = ep->ep.desc;
if (!desc)
continue;
- tmp = *dev->ep [i].reg_udccs;
+ tmp = udc_ep_get_UDCCS(&dev->ep[i]);
seq_printf(m,
"%s max %d %s udccs %02x irqs %lu\n",
ep->ep.name, usb_endpoint_maxp(desc),
@@ -1300,14 +1359,15 @@ static const struct file_operations debug_fops = {
static void udc_disable(struct pxa25x_udc *dev)
{
/* block all irqs */
- udc_set_mask_UDCCR(UDCCR_SRM|UDCCR_REM);
- UICR0 = UICR1 = 0xff;
- UFNRH = UFNRH_SIM;
+ udc_set_mask_UDCCR(dev, UDCCR_SRM|UDCCR_REM);
+ udc_set_reg(dev, UICR0, 0xff);
+ udc_set_reg(dev, UICR1, 0xff);
+ udc_set_reg(dev, UFNRH, UFNRH_SIM);

/* if hardware supports it, disconnect from usb */
pullup_off();

- udc_clear_mask_UDCCR(UDCCR_UDE);
+ udc_clear_mask_UDCCR(dev, UDCCR_UDE);

ep0_idle (dev);
dev->gadget.speed = USB_SPEED_UNKNOWN;
@@ -1349,10 +1409,10 @@ static void udc_reinit(struct pxa25x_udc *dev)
*/
static void udc_enable (struct pxa25x_udc *dev)
{
- udc_clear_mask_UDCCR(UDCCR_UDE);
+ udc_clear_mask_UDCCR(dev, UDCCR_UDE);

/* try to clear these bits before we enable the udc */
- udc_ack_int_UDCCR(UDCCR_SUSIR|/*UDCCR_RSTIR|*/UDCCR_RESIR);
+ udc_ack_int_UDCCR(dev, UDCCR_SUSIR|/*UDCCR_RSTIR|*/UDCCR_RESIR);

ep0_idle(dev);
dev->gadget.speed = USB_SPEED_UNKNOWN;
@@ -1364,15 +1424,15 @@ static void udc_enable (struct pxa25x_udc *dev)
* - if RESET is already in progress, ack interrupt
* - unmask reset interrupt
*/
- udc_set_mask_UDCCR(UDCCR_UDE);
- if (!(UDCCR & UDCCR_UDA))
- udc_ack_int_UDCCR(UDCCR_RSTIR);
+ udc_set_mask_UDCCR(dev, UDCCR_UDE);
+ if (!(udc_get_reg(dev, UDCCR) & UDCCR_UDA))
+ udc_ack_int_UDCCR(dev, UDCCR_RSTIR);

if (dev->has_cfr /* UDC_RES2 is defined */) {
/* pxa255 (a0+) can avoid a set_config race that could
* prevent gadget drivers from configuring correctly
*/
- UDCCFR = UDCCFR_ACM | UDCCFR_MB1;
+ udc_set_reg(dev, UDCCFR, UDCCFR_ACM | UDCCFR_MB1);
} else {
/* "USB test mode" for pxa250 errata 40-42 (stepping a0, a1)
* which could result in missing packets and interrupts.
@@ -1380,15 +1440,15 @@ static void udc_enable (struct pxa25x_udc *dev)
* double buffers or not; ACM/AREN bits fit into the holes.
* zero bits (like USIR0_IRx) disable double buffering.
*/
- UDC_RES1 = 0x00;
- UDC_RES2 = 0x00;
+ udc_set_reg(dev, UDC_RES1, 0x00);
+ udc_set_reg(dev, UDC_RES2, 0x00);
}

/* enable suspend/resume and reset irqs */
- udc_clear_mask_UDCCR(UDCCR_SRM | UDCCR_REM);
+ udc_clear_mask_UDCCR(dev, UDCCR_SRM | UDCCR_REM);

/* enable ep0 irqs */
- UICR0 &= ~UICR0_IM0;
+ udc_set_reg(dev, UICR0, udc_get_reg(dev, UICR0) & ~UICR0_IM0);

/* if hardware supports it, pullup D+ and wait for reset */
pullup_on();
@@ -1557,9 +1617,9 @@ static void udc_watchdog(unsigned long _dev)

local_irq_disable();
if (dev->ep0state == EP0_STALL
- && (UDCCS0 & UDCCS0_FST) == 0
- && (UDCCS0 & UDCCS0_SST) == 0) {
- UDCCS0 = UDCCS0_FST|UDCCS0_FTF;
+ && (udc_ep0_get_UDCCS(dev) & UDCCS0_FST) == 0
+ && (udc_ep0_get_UDCCS(dev) & UDCCS0_SST) == 0) {
+ udc_ep0_set_UDCCS(dev, UDCCS0_FST|UDCCS0_FTF);
DBG(DBG_VERBOSE, "ep0 re-stall\n");
start_watchdog(dev);
}
@@ -1568,7 +1628,7 @@ static void udc_watchdog(unsigned long _dev)

static void handle_ep0 (struct pxa25x_udc *dev)
{
- u32 udccs0 = UDCCS0;
+ u32 udccs0 = udc_ep0_get_UDCCS(dev);
struct pxa25x_ep *ep = &dev->ep [0];
struct pxa25x_request *req;
union {
@@ -1585,7 +1645,7 @@ static void handle_ep0 (struct pxa25x_udc *dev)
/* clear stall status */
if (udccs0 & UDCCS0_SST) {
nuke(ep, -EPIPE);
- UDCCS0 = UDCCS0_SST;
+ udc_ep0_set_UDCCS(dev, UDCCS0_SST);
del_timer(&dev->timer);
ep0_idle(dev);
}
@@ -1600,7 +1660,7 @@ static void handle_ep0 (struct pxa25x_udc *dev)
switch (dev->ep0state) {
case EP0_IDLE:
/* late-breaking status? */
- udccs0 = UDCCS0;
+ udccs0 = udc_ep0_get_UDCCS(dev);

/* start control request? */
if (likely((udccs0 & (UDCCS0_OPR|UDCCS0_SA|UDCCS0_RNE))
@@ -1611,14 +1671,14 @@ static void handle_ep0 (struct pxa25x_udc *dev)

/* read SETUP packet */
for (i = 0; i < 8; i++) {
- if (unlikely(!(UDCCS0 & UDCCS0_RNE))) {
+ if (unlikely(!(udc_ep0_get_UDCCS(dev) & UDCCS0_RNE))) {
bad_setup:
DMSG("SETUP %d!\n", i);
goto stall;
}
u.raw [i] = (u8) UDDR0;
}
- if (unlikely((UDCCS0 & UDCCS0_RNE) != 0))
+ if (unlikely((udc_ep0_get_UDCCS(dev) & UDCCS0_RNE) != 0))
goto bad_setup;

got_setup:
@@ -1694,7 +1754,7 @@ config_change:
*/
}
DBG(DBG_VERBOSE, "protocol STALL, "
- "%02x err %d\n", UDCCS0, i);
+ "%02x err %d\n", udc_ep0_get_UDCCS(dev), i);
stall:
/* the watchdog timer helps deal with cases
* where udc seems to clear FST wrongly, and
@@ -1741,12 +1801,12 @@ stall:
* - IPR cleared
* - OPR got set, without SA (likely status stage)
*/
- UDCCS0 = udccs0 & (UDCCS0_SA|UDCCS0_OPR);
+ udc_ep0_set_UDCCS(dev, udccs0 & (UDCCS0_SA|UDCCS0_OPR));
}
break;
case EP0_IN_DATA_PHASE: /* GET_DESCRIPTOR etc */
if (udccs0 & UDCCS0_OPR) {
- UDCCS0 = UDCCS0_OPR|UDCCS0_FTF;
+ udc_ep0_set_UDCCS(dev, UDCCS0_OPR|UDCCS0_FTF);
DBG(DBG_VERBOSE, "ep0in premature status\n");
if (req)
done(ep, req, 0);
@@ -1780,14 +1840,14 @@ stall:
* also appears after some config change events.
*/
if (udccs0 & UDCCS0_OPR)
- UDCCS0 = UDCCS0_OPR;
+ udc_ep0_set_UDCCS(dev, UDCCS0_OPR);
ep0_idle(dev);
break;
case EP0_STALL:
- UDCCS0 = UDCCS0_FST;
+ udc_ep0_set_UDCCS(dev, UDCCS0_FST);
break;
}
- USIR0 = USIR0_IR0;
+ udc_set_reg(dev, USIR0, USIR0_IR0);
}

static void handle_ep(struct pxa25x_ep *ep)
@@ -1807,14 +1867,14 @@ static void handle_ep(struct pxa25x_ep *ep)

// TODO check FST handling

- udccs = *ep->reg_udccs;
+ udccs = udc_ep_get_UDCCS(ep);
if (unlikely(is_in)) { /* irq from TPC, SST, or (ISO) TUR */
tmp = UDCCS_BI_TUR;
if (likely(ep->bmAttributes == USB_ENDPOINT_XFER_BULK))
tmp |= UDCCS_BI_SST;
tmp &= udccs;
if (likely (tmp))
- *ep->reg_udccs = tmp;
+ udc_ep_set_UDCCS(ep, tmp);
if (req && likely ((udccs & UDCCS_BI_TFS) != 0))
completed = write_fifo(ep, req);

@@ -1825,13 +1885,13 @@ static void handle_ep(struct pxa25x_ep *ep)
tmp = UDCCS_IO_ROF | UDCCS_IO_DME;
tmp &= udccs;
if (likely(tmp))
- *ep->reg_udccs = tmp;
+ udc_ep_set_UDCCS(ep, tmp);

/* fifos can hold packets, ready for reading... */
if (likely(req)) {
completed = read_fifo(ep, req);
} else
- pio_irq_disable (ep->bEndpointAddress);
+ pio_irq_disable(ep);
}
ep->pio_irqs++;
} while (completed);
@@ -1852,13 +1912,13 @@ pxa25x_udc_irq(int irq, void *_dev)

dev->stats.irqs++;
do {
- u32 udccr = UDCCR;
+ u32 udccr = udc_get_reg(dev, UDCCR);

handled = 0;

/* SUSpend Interrupt Request */
if (unlikely(udccr & UDCCR_SUSIR)) {
- udc_ack_int_UDCCR(UDCCR_SUSIR);
+ udc_ack_int_UDCCR(dev, UDCCR_SUSIR);
handled = 1;
DBG(DBG_VERBOSE, "USB suspend\n");

@@ -1871,7 +1931,7 @@ pxa25x_udc_irq(int irq, void *_dev)

/* RESume Interrupt Request */
if (unlikely(udccr & UDCCR_RESIR)) {
- udc_ack_int_UDCCR(UDCCR_RESIR);
+ udc_ack_int_UDCCR(dev, UDCCR_RESIR);
handled = 1;
DBG(DBG_VERBOSE, "USB resume\n");

@@ -1883,10 +1943,10 @@ pxa25x_udc_irq(int irq, void *_dev)

/* ReSeT Interrupt Request - USB reset */
if (unlikely(udccr & UDCCR_RSTIR)) {
- udc_ack_int_UDCCR(UDCCR_RSTIR);
+ udc_ack_int_UDCCR(dev, UDCCR_RSTIR);
handled = 1;

- if ((UDCCR & UDCCR_UDA) == 0) {
+ if ((udc_get_reg(dev, UDCCR) & UDCCR_UDA) == 0) {
DBG(DBG_VERBOSE, "USB reset start\n");

/* reset driver and endpoints,
@@ -1902,8 +1962,10 @@ pxa25x_udc_irq(int irq, void *_dev)
}

} else {
- u32 usir0 = USIR0 & ~UICR0;
- u32 usir1 = USIR1 & ~UICR1;
+ u32 usir0 = udc_get_reg(dev, USIR0) &
+ ~udc_get_reg(dev, UICR0);
+ u32 usir1 = udc_get_reg(dev, USIR1) &
+ ~udc_get_reg(dev, UICR1);
int i;

if (unlikely (!usir0 && !usir1))
@@ -1924,13 +1986,15 @@ pxa25x_udc_irq(int irq, void *_dev)

if (i && (usir0 & tmp)) {
handle_ep(&dev->ep[i]);
- USIR0 |= tmp;
+ udc_set_reg(dev, USIR0,
+ udc_get_reg(dev, USIR0) | tmp);
handled = 1;
}
#ifndef CONFIG_USB_PXA25X_SMALL
if (usir1 & tmp) {
handle_ep(&dev->ep[i+8]);
- USIR1 |= tmp;
+ udc_set_reg(dev, USIR1,
+ udc_get_reg(dev, USIR1) | tmp);
handled = 1;
}
#endif
@@ -1975,8 +2039,8 @@ static struct pxa25x_udc memory = {
USB_EP_CAPS_DIR_ALL),
},
.dev = &memory,
- .reg_udccs = &UDCCS0,
- .reg_uddr = &UDDR0,
+ .regoff_udccs = UDCCS0,
+ .regoff_uddr = UDDR0,
},

/* first group of endpoints */
@@ -1992,8 +2056,8 @@ static struct pxa25x_udc memory = {
.fifo_size = BULK_FIFO_SIZE,
.bEndpointAddress = USB_DIR_IN | 1,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
- .reg_udccs = &UDCCS1,
- .reg_uddr = &UDDR1,
+ .regoff_udccs = UDCCS1,
+ .regoff_uddr = UDDR1,
},
.ep[2] = {
.ep = {
@@ -2007,9 +2071,9 @@ static struct pxa25x_udc memory = {
.fifo_size = BULK_FIFO_SIZE,
.bEndpointAddress = 2,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
- .reg_udccs = &UDCCS2,
- .reg_ubcr = &UBCR2,
- .reg_uddr = &UDDR2,
+ .regoff_udccs = UDCCS2,
+ .regoff_ubcr = UBCR2,
+ .regoff_uddr = UDDR2,
},
#ifndef CONFIG_USB_PXA25X_SMALL
.ep[3] = {
@@ -2024,8 +2088,8 @@ static struct pxa25x_udc memory = {
.fifo_size = ISO_FIFO_SIZE,
.bEndpointAddress = USB_DIR_IN | 3,
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
- .reg_udccs = &UDCCS3,
- .reg_uddr = &UDDR3,
+ .regoff_udccs = UDCCS3,
+ .regoff_uddr = UDDR3,
},
.ep[4] = {
.ep = {
@@ -2039,9 +2103,9 @@ static struct pxa25x_udc memory = {
.fifo_size = ISO_FIFO_SIZE,
.bEndpointAddress = 4,
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
- .reg_udccs = &UDCCS4,
- .reg_ubcr = &UBCR4,
- .reg_uddr = &UDDR4,
+ .regoff_udccs = UDCCS4,
+ .regoff_ubcr = UBCR4,
+ .regoff_uddr = UDDR4,
},
.ep[5] = {
.ep = {
@@ -2054,8 +2118,8 @@ static struct pxa25x_udc memory = {
.fifo_size = INT_FIFO_SIZE,
.bEndpointAddress = USB_DIR_IN | 5,
.bmAttributes = USB_ENDPOINT_XFER_INT,
- .reg_udccs = &UDCCS5,
- .reg_uddr = &UDDR5,
+ .regoff_udccs = UDCCS5,
+ .regoff_uddr = UDDR5,
},

/* second group of endpoints */
@@ -2071,8 +2135,8 @@ static struct pxa25x_udc memory = {
.fifo_size = BULK_FIFO_SIZE,
.bEndpointAddress = USB_DIR_IN | 6,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
- .reg_udccs = &UDCCS6,
- .reg_uddr = &UDDR6,
+ .regoff_udccs = UDCCS6,
+ .regoff_uddr = UDDR6,
},
.ep[7] = {
.ep = {
@@ -2086,9 +2150,9 @@ static struct pxa25x_udc memory = {
.fifo_size = BULK_FIFO_SIZE,
.bEndpointAddress = 7,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
- .reg_udccs = &UDCCS7,
- .reg_ubcr = &UBCR7,
- .reg_uddr = &UDDR7,
+ .regoff_udccs = UDCCS7,
+ .regoff_ubcr = UBCR7,
+ .regoff_uddr = UDDR7,
},
.ep[8] = {
.ep = {
@@ -2102,8 +2166,8 @@ static struct pxa25x_udc memory = {
.fifo_size = ISO_FIFO_SIZE,
.bEndpointAddress = USB_DIR_IN | 8,
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
- .reg_udccs = &UDCCS8,
- .reg_uddr = &UDDR8,
+ .regoff_udccs = UDCCS8,
+ .regoff_uddr = UDDR8,
},
.ep[9] = {
.ep = {
@@ -2117,9 +2181,9 @@ static struct pxa25x_udc memory = {
.fifo_size = ISO_FIFO_SIZE,
.bEndpointAddress = 9,
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
- .reg_udccs = &UDCCS9,
- .reg_ubcr = &UBCR9,
- .reg_uddr = &UDDR9,
+ .regoff_udccs = UDCCS9,
+ .regoff_ubcr = UBCR9,
+ .regoff_uddr = UDDR9,
},
.ep[10] = {
.ep = {
@@ -2132,8 +2196,8 @@ static struct pxa25x_udc memory = {
.fifo_size = INT_FIFO_SIZE,
.bEndpointAddress = USB_DIR_IN | 10,
.bmAttributes = USB_ENDPOINT_XFER_INT,
- .reg_udccs = &UDCCS10,
- .reg_uddr = &UDDR10,
+ .regoff_udccs = UDCCS10,
+ .regoff_uddr = UDDR10,
},

/* third group of endpoints */
@@ -2149,8 +2213,8 @@ static struct pxa25x_udc memory = {
.fifo_size = BULK_FIFO_SIZE,
.bEndpointAddress = USB_DIR_IN | 11,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
- .reg_udccs = &UDCCS11,
- .reg_uddr = &UDDR11,
+ .regoff_udccs = UDCCS11,
+ .regoff_uddr = UDDR11,
},
.ep[12] = {
.ep = {
@@ -2164,9 +2228,9 @@ static struct pxa25x_udc memory = {
.fifo_size = BULK_FIFO_SIZE,
.bEndpointAddress = 12,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
- .reg_udccs = &UDCCS12,
- .reg_ubcr = &UBCR12,
- .reg_uddr = &UDDR12,
+ .regoff_udccs = UDCCS12,
+ .regoff_ubcr = UBCR12,
+ .regoff_uddr = UDDR12,
},
.ep[13] = {
.ep = {
@@ -2180,8 +2244,8 @@ static struct pxa25x_udc memory = {
.fifo_size = ISO_FIFO_SIZE,
.bEndpointAddress = USB_DIR_IN | 13,
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
- .reg_udccs = &UDCCS13,
- .reg_uddr = &UDDR13,
+ .regoff_udccs = UDCCS13,
+ .regoff_uddr = UDDR13,
},
.ep[14] = {
.ep = {
@@ -2195,9 +2259,9 @@ static struct pxa25x_udc memory = {
.fifo_size = ISO_FIFO_SIZE,
.bEndpointAddress = 14,
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
- .reg_udccs = &UDCCS14,
- .reg_ubcr = &UBCR14,
- .reg_uddr = &UDDR14,
+ .regoff_udccs = UDCCS14,
+ .regoff_ubcr = UBCR14,
+ .regoff_uddr = UDDR14,
},
.ep[15] = {
.ep = {
@@ -2210,8 +2274,8 @@ static struct pxa25x_udc memory = {
.fifo_size = INT_FIFO_SIZE,
.bEndpointAddress = USB_DIR_IN | 15,
.bmAttributes = USB_ENDPOINT_XFER_INT,
- .reg_udccs = &UDCCS15,
- .reg_uddr = &UDDR15,
+ .regoff_udccs = UDCCS15,
+ .regoff_uddr = UDDR15,
},
#endif /* !CONFIG_USB_PXA25X_SMALL */
};
@@ -2258,6 +2322,7 @@ static int pxa25x_udc_probe(struct platform_device *pdev)
struct pxa25x_udc *dev = &memory;
int retval, irq;
u32 chiprev;
+ struct resource *res;

pr_info("%s: version %s\n", driver_name, DRIVER_VERSION);

@@ -2303,6 +2368,11 @@ static int pxa25x_udc_probe(struct platform_device *pdev)
if (irq < 0)
return -ENODEV;

+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ pxa25x_udc_reg_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(pxa25x_udc_reg_base))
+ return PTR_ERR(pxa25x_udc_reg_base);
+
dev->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(dev->clk))
return PTR_ERR(dev->clk);
diff --git a/drivers/usb/gadget/udc/pxa25x_udc.h b/drivers/usb/gadget/udc/pxa25x_udc.h
index 3fe5931dc21a..f884513f7390 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.h
+++ b/drivers/usb/gadget/udc/pxa25x_udc.h
@@ -56,9 +56,9 @@ struct pxa25x_ep {
* UDDR = UDC Endpoint Data Register (the fifo)
* DRCM = DMA Request Channel Map
*/
- volatile u32 *reg_udccs;
- volatile u32 *reg_ubcr;
- volatile u32 *reg_uddr;
+ u32 regoff_udccs;
+ u32 regoff_ubcr;
+ u32 regoff_uddr;
};

struct pxa25x_request {
@@ -197,6 +197,8 @@ dump_udccs0(const char *label)
(udccs0 & UDCCS0_OPR) ? " opr" : "");
}

+static inline u32 udc_ep_get_UDCCS(struct pxa25x_ep *);
+
static void __maybe_unused
dump_state(struct pxa25x_udc *dev)
{
@@ -228,7 +230,7 @@ dump_state(struct pxa25x_udc *dev)
for (i = 1; i < PXA_UDC_NUM_ENDPOINTS; i++) {
if (dev->ep[i].ep.desc == NULL)
continue;
- DMSG ("udccs%d = %02x\n", i, *dev->ep->reg_udccs);
+ DMSG ("udccs%d = %02x\n", i, udc_ep_get_UDCCS(&dev->ep[i]));
}
}

--
2.7.0