[U-Boot-Users] [PATCH] Add support for OMAP5912 and OMAP16xx to usbdcore_omap1510.c

[Hunter, Jon]

Add support to drivers/usb/usbdcore_omap1510.c for OMAP5912 and OMAP16xx devices.

Signed-off-by: Jon Hunter <jon-hunter at ti.com>
---
 drivers/usb/usbdcore_omap1510.c |   27 ++++++++++++++++++++++++---
 1 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/usbdcore_omap1510.c b/drivers/usb/usbdcore_omap1510.c
index 84bb936..61c0d3b 100644
--- a/drivers/usb/usbdcore_omap1510.c
+++ b/drivers/usb/usbdcore_omap1510.c
@@ -28,7 +28,7 @@

 #include <common.h>

-#if defined(CONFIG_OMAP1510) && defined(CONFIG_USB_DEVICE)
+#if ((defined(CONFIG_OMAP1510) || defined(CONFIG_OMAP1610)) && defined(CONFIG_USB_DEVICE))

 #include <asm/io.h>
 #ifdef CONFIG_OMAP_SX1
@@ -1109,21 +1109,42 @@ int udc_init (void)
         */
        outw ((1 << 4) | (1 << 5), CLOCK_CTRL);
        UDCREG (CLOCK_CTRL);
+
+#ifdef CONFIG_OMAP1510
+       /* This code was originally implemented for OMAP1510 and
+        * therefore is only applicable for OMAP1510 boards. For
+        * OMAP5912 or OMAP16xx the register APLL_CTRL does not
+        * exist and DPLL_CTRL is already configured.
+        */
+
        /* Set and check APLL */
        outw (0x0008, APLL_CTRL);
        UDCREG (APLL_CTRL);
        /* Set and check DPLL */
        outw (0x2210, DPLL_CTRL);
        UDCREG (DPLL_CTRL);
-       /* Set and check SOFT */
-       outw ((1 << 4) | (1 << 3) | 1, SOFT_REQ);
+#endif
+       /* Set and check SOFT
+        * The below line of code has been changed to perform a
+        * read-modify-write instead of a simple write for
+        * configuring the SOFT_REQ register. This allows the code
+        * to be compatible with OMAP5912 and OMAP16xx devices
+        */
+       outw ((1 << 4) | (1 << 3) | 1 | (inw(SOFT_REQ)), SOFT_REQ);
        /* Short delay to wait for DPLL */
        udelay (1000);

        /* Print banner with device revision */
        udc_rev = inw (UDC_REV) & 0xff;
+#ifdef CONFIG_OMAP1510
        printf ("USB:   TI OMAP1510 USB function module rev %d.%d\n",
                udc_rev >> 4, udc_rev & 0xf);
+#endif
+
+#ifdef CONFIG_OMAP1610
+       printf ("USB:   TI OMAP5912 USB function module rev %d.%d\n",
+               udc_rev >> 4, udc_rev & 0xf);
+#endif

 #ifdef CONFIG_OMAP_SX1
        i2c_read (0x32, 0x04, 1, &value, 1);
--
1.4.4.4