Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7e6507ad authored by Jayachandran C's avatar Jayachandran C Committed by Ralf Baechle
Browse files

MIPS: Netlogic: early console fix 



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

Signed-off-by: default avatarJayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Cc: Florian Fainelli <florian@openwrt.org>
Patchwork: https://patchwork.linux-mips.org/patch/4112/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 93a02932

arch/mips/netlogic/common/earlycons.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

}