From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-lpp01m010-f49.google.com ([209.85.215.49]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1ST6Xs-000439-Dt for barebox@lists.infradead.org; Sat, 12 May 2012 07:15:32 +0000 Received: by laap9 with SMTP id p9so2978371laa.36 for ; Sat, 12 May 2012 00:15:10 -0700 (PDT) From: Antony Pavlov Date: Sat, 12 May 2012 11:15:03 +0400 Message-Id: <1336806904-6251-1-git-send-email-antonynpavlov@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 1/2] MIPS: add common header file for DEBUG_LL via NS16550 To: barebox@lists.infradead.org Signed-off-by: Antony Pavlov --- arch/mips/include/debug_ll_ns16550.h | 40 ++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 arch/mips/include/debug_ll_ns16550.h diff --git a/arch/mips/include/debug_ll_ns16550.h b/arch/mips/include/debug_ll_ns16550.h new file mode 100644 index 0000000..9280219 --- /dev/null +++ b/arch/mips/include/debug_ll_ns16550.h @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2012 Antony Pavlov + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/** @file + * This file contains declaration for early output support + */ +#ifndef __INCLUDE_ARCH_DEBUG_LL_NS16550_H__ +#define __INCLUDE_ARCH_DEBUG_LL_NS16550_H__ + +#include + +#define rbr (0 << DEBUG_LL_UART_SHIFT) +#define lsr (5 << DEBUG_LL_UART_SHIFT) + +#define LSR_THRE 0x20 /* Xmit holding register empty */ + +static __inline__ void putc(char ch) +{ + while (!(__raw_readb((u8 *)DEBUG_LL_UART_ADDR + lsr) & LSR_THRE)); + __raw_writeb(ch, (u8 *)DEBUG_LL_UART_ADDR + rbr); +} + +#endif /* __INCLUDE_ARCH_DEBUG_LL_NS16550_H__ */ -- 1.7.10 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox