[PATCH] fix-dont-do-i2c-with-irqs-off.patch

[Andy Green]

We can't afford turning off interrupts for long periods in
U-Boot as the USB stack fails and leaves the USB device in
Insane Spam Mode.

This patch allowed 50 resets in a row giving normal USB
behaviour with no sign of the issue any more.

Signed-off-by: Andy Green <andy at openmoko.com>
---

 board/neo1973/gta02/gta02.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/board/neo1973/gta02/gta02.c b/board/neo1973/gta02/gta02.c
index c4766b0..3d8f14e 100644
--- a/board/neo1973/gta02/gta02.c
+++ b/board/neo1973/gta02/gta02.c
@@ -405,7 +405,13 @@ static void wait_for_power(void)
 		if (pcf50633_usb_last_maxcurrent >= 500)
 			break;
 
-		cpu_idle();
+		/* cpu_idle sits with interrupts off destroying USB operation
+		 * don't run it unless we are in trouble
+		 */
+		if (!battery_is_good())
+			cpu_idle();
+		else
+			udelay(1000000);
 
 		if (neo1973_new_second()) {
 			/*