diff options
Diffstat (limited to 'arch/arm/mach-digic/include/mach/debug_ll.h')
| -rw-r--r-- | arch/arm/mach-digic/include/mach/debug_ll.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/mach-digic/include/mach/debug_ll.h b/arch/arm/mach-digic/include/mach/debug_ll.h new file mode 100644 index 0000000000..721fd444c2 --- /dev/null +++ b/arch/arm/mach-digic/include/mach/debug_ll.h @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2013, 2014 Antony Pavlov <antonynpavlov@gmail.com> + * + * This file is part of barebox. + * See file CREDITS for list of people who contributed to this project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_DEBUG_LL_H__ +#define __MACH_DEBUG_LL_H__ + +#include <io.h> +#include <mach/digic4.h> +#include <mach/uart.h> + +#define DEBUG_LL_UART DIGIC4_UART + +/* Serial interface registers */ +#define DEBUG_LL_UART_TX (DEBUG_LL_UART + DIGIC_UART_TX) +#define DEBUG_LL_UART_ST (DEBUG_LL_UART + DIGIC_UART_ST) + +static inline void PUTC_LL(char ch) +{ + while (!(readl(DEBUG_LL_UART_ST) & DIGIC_UART_ST_TX_RDY)) + ; /* noop */ + + writel(0x06, DEBUG_LL_UART_ST); + writel(ch, DEBUG_LL_UART_TX); +} + +#endif /* __MACH_DEBUG_LL_H__ */ |