From 17c5c2093624e81acda16fb737e4679750addd7a Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@secretlab.ca>
Date: Thu, 4 Oct 2007 15:44:54 -0600
Subject: [POWERPC] Uartlite: bootwrapper bug fix, getc loops forever

Fixes inverted logic in uartlite_getc

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

diff --git a/arch/powerpc/boot/uartlite.c b/arch/powerpc/boot/uartlite.c
index 38a470b..46bed69 100644
--- a/arch/powerpc/boot/uartlite.c
+++ b/arch/powerpc/boot/uartlite.c
@@ -45,8 +45,8 @@ static void uartlite_putc(unsigned char c)
 
 static unsigned char uartlite_getc(void)
 {
-	u32 reg = ULITE_STATUS_RXVALID;
-	while (reg & ULITE_STATUS_RXVALID) /* spin on RXVALID bit */
+	u32 reg = 0;
+	while (!(reg & ULITE_STATUS_RXVALID)) /* spin waiting for RXVALID bit */
 		reg = in_be32(reg_base + ULITE_STATUS);
 	return in_be32(reg_base + ULITE_RX);
 }
-- 
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