From efa329cb892c8b9a5e453638b3ca57c94b71e9a2 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Tue, 23 Mar 2004 20:18:25 +0000
Subject: * Add start-up delay to make sure power has stabilized before  
 attempting to switch on USB on SX1 board.

* Patch by Josef Wagner, 18 Mar 2004:
  - Add support for MicroSys XM250 board (PXA255)
  - Add support for MicroSys PM828 board (MPC8280)
  - Add support for 32 MB Flash on PM825/826
  - new SDRAM refresh rate for PM825/PM826
  - added support for MicroSys PM520 (MPC5200)
  - replaced Query by Identify command in CPU86/flash.c
    to support 28F160F3B

* Fix wrap around problem with udelay() on ARM920T

* Add support for Macronix flash on TRAB board
---
 drivers/usbdcore_omap1510.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'drivers/usbdcore_omap1510.c')

diff --git a/drivers/usbdcore_omap1510.c b/drivers/usbdcore_omap1510.c
index 7a908489f..1d54a6357 100644
--- a/drivers/usbdcore_omap1510.c
+++ b/drivers/usbdcore_omap1510.c
@@ -40,6 +40,7 @@
 #include "usbdcore_ep0.h"
 
 
+#define UDC_INIT_MDELAY		     80 /* Device settle delay */
 #define UDC_MAX_ENDPOINTS	     31 /* Number of endpoints on this UDC */
 
 /* Some kind of debugging output... */
@@ -1087,6 +1088,11 @@ int udc_init (void)
 {
 	u16 udc_rev;
 	uchar value;
+	ulong gpio;
+	int i;
+
+	/* Let the device settle down before we start */
+	for (i = 0; i < UDC_INIT_MDELAY; i++) udelay(1000);
 
 	udc_device = NULL;
 
@@ -1127,6 +1133,24 @@ int udc_init (void)
 	i2c_read (0x32, 0x03, 1, &value, 1);
 	value |= 0x01;
 	i2c_write (0x32, 0x03, 1, &value, 1);
+
+	gpio = inl(GPIO_PIN_CONTROL_REG);
+	gpio |=  0x0002; /* A_IRDA_OFF */
+	gpio |=  0x0800; /* A_SWITCH   */
+	gpio |=  0x8000; /* A_USB_ON   */
+	outl (gpio, GPIO_PIN_CONTROL_REG);
+
+	gpio = inl(GPIO_DIR_CONTROL_REG);
+	gpio &= ~0x0002; /* A_IRDA_OFF */
+	gpio &= ~0x0800; /* A_SWITCH   */
+	gpio &= ~0x8000; /* A_USB_ON   */
+	outl (gpio, GPIO_DIR_CONTROL_REG);
+
+	gpio = inl(GPIO_DATA_OUTPUT_REG);
+	gpio |=  0x0002; /* A_IRDA_OFF */
+	gpio &= ~0x0800; /* A_SWITCH   */
+	gpio &= ~0x8000; /* A_USB_ON   */
+	outl (gpio, GPIO_DATA_OUTPUT_REG);
 #endif
 
 	/* The VBUS_MODE bit selects whether VBUS detection is done via
-- 
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