[PATCH UPDATED 06/12] MIPS: Netlogic: early console fix

["Jayachandran C" <jayachandranc@netlogicmicro.com>]

In prom_putchar(), wait for just the TX empty bit to clear in the
UART LSR.

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
---
[Updated to use UART_LSR_THRE instead of 0x20, as suggested by 
 Florian Fainelli <florian@openwrt.org>]

 arch/mips/netlogic/common/earlycons.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/netlogic/common/earlycons.c 
b/arch/mips/netlogic/common/earlycons.c
index f193f7b..53b200a5 100644
--- a/arch/mips/netlogic/common/earlycons.c
+++ b/arch/mips/netlogic/common/earlycons.c
@@ -54,7 +54,7 @@ void prom_putchar(char c)
 #elif defined(CONFIG_CPU_XLR)
        uartbase = nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET);
 #endif
-       while (nlm_read_reg(uartbase, UART_LSR) == 0)
+       while ((nlm_read_reg(uartbase, UART_LSR) & UART_LSR_THRE) == 0)
                ;
        nlm_write_reg(uartbase, UART_TX, c);
 }
-- 
1.7.9.5