USB: ehci-dbgp,ehci: Allow early or late use of the dbgp device

[linux-2.6.git] / include / linux / usb / ehci_def.h

diff --git a/include/linux/usb/ehci_def.h b/include/linux/usb/ehci_def.h
index 5b88e36c91033e376a88be4ccf570622247d81a9..1909d924f8162ea9a85b2473754ec511a6e7977c 100644 (file)
--- a/include/linux/usb/ehci_def.h
+++ b/include/linux/usb/ehci_def.h
@@ -132,6 +132,19 @@ struct ehci_regs {
 #define USBMODE_CM_HC  (3<<0)          /* host controller mode */
 #define USBMODE_CM_IDLE        (0<<0)          /* idle state */
 
+/* Moorestown has some non-standard registers, partially due to the fact that
+ * its EHCI controller has both TT and LPM support. HOSTPCx are extentions to
+ * PORTSCx
+ */
+#define HOSTPC0                0x84            /* HOSTPC extension */
+#define HOSTPC_PHCD    (1<<22)         /* Phy clock disable */
+#define HOSTPC_PSPD    (3<<25)         /* Port speed detection */
+#define USBMODE_EX     0xc8            /* USB Device mode extension */
+#define USBMODE_EX_VBPS        (1<<5)          /* VBus Power Select On */
+#define USBMODE_EX_HC  (3<<0)          /* host controller mode */
+#define TXFILLTUNING   0x24            /* TX FIFO Tuning register */
+#define TXFIFO_DEFAULT (8<<16)         /* FIFO burst threshold 8 */
+
 /* Appendix C, Debug port ... intended for use with special "debug devices"
  * that can help if there's no serial console.  (nonstandard enumeration.)
  */
@@ -157,4 +170,25 @@ struct ehci_dbg_port {
 #define DBGP_EPADDR(dev, ep)   (((dev)<<8)|(ep))
 } __attribute__ ((packed));
 
+#ifdef CONFIG_EARLY_PRINTK_DBGP
+#include <linux/init.h>
+extern int __init early_dbgp_init(char *s);
+extern struct console early_dbgp_console;
+#endif /* CONFIG_EARLY_PRINTK_DBGP */
+
+#ifdef CONFIG_EARLY_PRINTK_DBGP
+/* Call backs from ehci host driver to ehci debug driver */
+extern int dbgp_external_startup(void);
+extern int dbgp_reset_prep(void);
+#else
+static inline int dbgp_reset_prep(void)
+{
+       return 1;
+}
+static inline int dbgp_external_startup(void)
+{
+       return -1;
+}
+#endif
+
 #endif /* __LINUX_USB_EHCI_DEF_H */