add register definitions and musb_ulpi_readb/writeb
support.
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxx>
---
drivers/usb/musb/musb_regs.h | 62 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 62 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
index 473a94e..7e6e68e 100644
--- a/drivers/usb/musb/musb_regs.h
+++ b/drivers/usb/musb/musb_regs.h
@@ -72,6 +72,11 @@
#define MUSB_DEVCTL_HR 0x02
#define MUSB_DEVCTL_SESSION 0x01
+/* ULPI_REG_CONTROL */
+#define ULPI_REG_REQ (1 << 0)
+#define ULPI_REG_CMPLT (1 << 1)
+#define ULPI_RDN_WR (1 << 2)
+
/* TESTMODE */
#define MUSB_TEST_FORCE_HOST 0x80
#define MUSB_TEST_FIFO_ACCESS 0x40
@@ -247,6 +252,16 @@
/* REVISIT: vctrl/vstatus: optional vendor utmi+phy register at 0x68 */
#define MUSB_HWVERS 0x6C /* 8 bit */
+/* ULPI Registers */
+#define ULPI_VBUS_CONTROL 0x70 /* 8 bit */
+#define ULPI_CARKIT_CONTROL 0x71 /* 8 bit */
+#define ULPI_INT_MASK 0x72 /* 8 bit */
+#define ULPI_INT_SRC 0x73 /* 8 bit */
+#define ULPI_REG_DATA 0x74 /* 8 bit */
+#define ULPI_REG_ADDR 0x75 /* 8 bit */
+#define ULPI_REG_CONTROL 0x76 /* 8 bit */
+#define ULPI_RAW_DATA 0x77 /* 8 bit */
+
#define MUSB_EPINFO 0x78 /* 8 bit */
#define MUSB_RAMINFO 0x79 /* 8 bit */
#define MUSB_LINKINFO 0x7a /* 8 bit */
@@ -502,4 +517,51 @@ static inline void musb_write_txhubport(void __iomem *mbase, u8 epnum,
#endif /* CONFIG_BLACKFIN */
+/* ULPI read/write support */
+static inline u8 musb_ulpi_readb(void __iomem *addr, u8 offset)
+{
+ int i = 0;
+ u8 r;
+
+ musb_writeb(addr, ULPI_REG_ADDR, offset);
+ musb_writeb(addr, ULPI_REG_CONTROL, ULPI_REG_REQ | ULPI_RDN_WR);
+
+ while (!(musb_readb(addr, ULPI_REG_CONTROL) & ULPI_REG_CMPLT)) {
+ i++;
+ if (i == 10000) {
+ DBG(3, "ULPI read timed out\n");
+ return 0;
+ }
+
+ }
+ r = musb_readb(addr, ULPI_REG_CONTROL);
+ r &= ~ULPI_REG_CMPLT;
+ musb_writeb(addr, ULPI_REG_CONTROL, r);
+
+ return musb_readb(addr, ULPI_REG_DATA);
+}
+
+static inline void musb_ulpi_writeb(void __iomem *addr,
+ u8 offset, u8 data)
+{
+ int i = 0;
+ u8 r = 0;
+
+ musb_writeb(addr, ULPI_REG_ADDR, offset);
+ musb_writeb(addr, ULPI_REG_DATA, data);
+ musb_writeb(addr, ULPI_REG_CONTROL, ULPI_REG_REQ);
+
+ while(!(musb_readb(addr, ULPI_REG_CONTROL) & ULPI_REG_CMPLT)) {
+ i++;
+ if (i == 10000) {
+ DBG(3, "ULPI write timed out\n");
+ return;
+ }
+ }
+
+ r = musb_readb(addr, ULPI_REG_CONTROL);
+ r &= ~ULPI_REG_CMPLT;
+ musb_writeb(addr, ULPI_REG_CONTROL, r);
+}
+
#endif /* __MUSB_REGS_H__ */
--
1.6.6.rc0
--
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