From b81406db51a68ddd482d4ea3641dd7ad2e910771 Mon Sep 17 00:00:00 2001 From: Sergey Temerkhanov Date: Wed, 14 Oct 2015 09:54:23 -0700 Subject: [PATCH] arm: serial: Add debug UART capability to the pl01x driver This patch adds an ability to use pl01x as a debug UART. It must be configured like other types of debug UARTs Signed-off-by: Sergey Temerkhanov Signed-off-by: Radha Mohan Chintakuntla [trini: Update for _debug_uart_init change] Acked-by: Simon Glass Signed-off-by: Tom Rini --- drivers/serial/serial_pl01x.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c index 3a5c1d0..552c945 100644 --- a/drivers/serial/serial_pl01x.c +++ b/drivers/serial/serial_pl01x.c @@ -367,3 +367,31 @@ U_BOOT_DRIVER(serial_pl01x) = { }; #endif + +#if defined(CONFIG_DEBUG_UART_PL010) || defined(CONFIG_DEBUG_UART_PL011) + +#include + +static void _debug_uart_init(void) +{ +#ifndef CONFIG_DEBUG_UART_SKIP_INIT + struct pl01x_regs *regs = (struct pl01x_regs *)CONFIG_DEBUG_UART_BASE; + enum pl01x_type type = CONFIG_IS_ENABLED(DEBUG_UART_PL011) ? + TYPE_PL011 : TYPE_PL010; + + pl01x_generic_serial_init(regs, type); + pl01x_generic_setbrg(regs, type, + CONFIG_DEBUG_UART_CLOCK, CONFIG_BAUDRATE); +#endif +} + +static inline void _debug_uart_putc(int ch) +{ + struct pl01x_regs *regs = (struct pl01x_regs *)CONFIG_DEBUG_UART_BASE; + + pl01x_putc(regs, ch); +} + +DEBUG_UART_FUNCS + +#endif -- 2.7.4