[POWERPC] Uartlite: bootwrapper bug fix, getc loops forever

Fixes inverted logic in uartlite_getc Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

[POWERPC] Uartlite: bootwrapper bug fix, getc loops forever
Fixes inverted logic in uartlite_getc Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Grant Likely
1 parent 4c3d514d7e
Showing 1 changed file with 2 additions and 2 deletions Side-by-side Diff
arch/powerpc/boot/uartlite.c
@@ -45,8 +45,8 @@
  
 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);
 }
...	...	@@ -45,8 +45,8 @@
45	45
46	46	static unsigned char uartlite_getc(void)
47	47	{
48		- u32 reg = ULITE_STATUS_RXVALID;
49		- while (reg & ULITE_STATUS_RXVALID) /* spin on RXVALID bit */
	48	+ u32 reg = 0;
	49	+ while (!(reg & ULITE_STATUS_RXVALID)) /* spin waiting for RXVALID bit */
50	50	reg = in_be32(reg_base + ULITE_STATUS);
51	51	return in_be32(reg_base + ULITE_RX);
52	52	}