From 17c5c2093624e81acda16fb737e4679750addd7a Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Thu, 4 Oct 2007 15:44:54 -0600 Subject: [PATCH] [POWERPC] Uartlite: bootwrapper bug fix, getc loops forever Fixes inverted logic in uartlite_getc Signed-off-by: Grant Likely --- arch/powerpc/boot/uartlite.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/boot/uartlite.c b/arch/powerpc/boot/uartlite.c index 38a470b329e3..46bed69b4169 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); } -- 2.20.1