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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 <s.temerkhanov@gmail.com>
Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>
[trini: Update for _debug_uart_init change]
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Sergey Temerkhanov 2015-10-14 09:54:23 -07:00 committed by Tom Rini
parent e6ac28b60b
commit b81406db51
1 changed files with 28 additions and 0 deletions
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28
drivers/serial/serial_pl01x.c
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@ -367,3 +367,31 @@ U_BOOT_DRIVER(serial_pl01x) = {
};
#endif
#if defined(CONFIG_DEBUG_UART_PL010) || defined(CONFIG_DEBUG_UART_PL011)
#include <debug_uart.h>
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