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USB: musb: partial DaVinci dm355 support

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Partial support for DaVinci DM355, on the EVM board; peripheral
mode should work, once mainline merges DM355 support.  Missing:

  (a) renumbering the GPIO for DRVVBUS on the DM6446 EVM,
      when DAVINCI_N_GPIO increases;

  (b) disabling DM355_DEEPSLEEP.DRVVBUS_OVERRIDE so VBUS is
      driven according to the ID signal, if cpu_is_..._dm355()

The new PHY control bits are ignored on DM6446.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Brownell
2009-02-24 15:31:54 -08:00
committed by Greg Kroah-Hartman
parent 743821717c
commit a227fd7db7
3 changed files with 62 additions and 30 deletions
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23
drivers/usb/musb/davinci.h
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@@ -15,14 +15,21 @@
*/
/* Integrated highspeed/otg PHY */
#define USBPHY_CTL_PADDR (DAVINCI_SYSTEM_MODULE_BASE + 0x34)
#define USBPHY_PHYCLKGD (1 << 8)
#define USBPHY_SESNDEN (1 << 7) /* v(sess_end) comparator */
#define USBPHY_VBDTCTEN (1 << 6) /* v(bus) comparator */
#define USBPHY_PHYPLLON (1 << 4) /* override pll suspend */
#define USBPHY_CLKO1SEL (1 << 3)
#define USBPHY_OSCPDWN (1 << 2)
#define USBPHY_PHYPDWN (1 << 0)
#define USBPHY_CTL_PADDR (DAVINCI_SYSTEM_MODULE_BASE + 0x34)
#define USBPHY_DATAPOL BIT(11) /* (dm355) switch D+/D- */
#define USBPHY_PHYCLKGD BIT(8)
#define USBPHY_SESNDEN BIT(7) /* v(sess_end) comparator */
#define USBPHY_VBDTCTEN BIT(6) /* v(bus) comparator */
#define USBPHY_VBUSSENS BIT(5) /* (dm355,ro) is vbus > 0.5V */
#define USBPHY_PHYPLLON BIT(4) /* override pll suspend */
#define USBPHY_CLKO1SEL BIT(3)
#define USBPHY_OSCPDWN BIT(2)
#define USBPHY_OTGPDWN BIT(1)
#define USBPHY_PHYPDWN BIT(0)
#define DM355_DEEPSLEEP_PADDR (DAVINCI_SYSTEM_MODULE_BASE + 0x48)
#define DRVVBUS_FORCE BIT(2)
#define DRVVBUS_OVERRIDE BIT(1)
/* For now include usb OTG module registers here */
#define DAVINCI_USB_VERSION_REG 0x00