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From: Antony Pavlov <antonynpavlov@gmail.com>
To: barebox@lists.infradead.org
Subject: [RFC 1/5] MIPS: add common header file for DEBUG_LL via NS16550
Date: Thu, 10 May 2012 13:32:06 +0400	[thread overview]
Message-ID: <1336642330-23675-2-git-send-email-antonynpavlov@gmail.com> (raw)
In-Reply-To: <1336642330-23675-1-git-send-email-antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 arch/mips/include/debug_ll_common.h |   40 +++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 arch/mips/include/debug_ll_common.h

diff --git a/arch/mips/include/debug_ll_common.h b/arch/mips/include/debug_ll_common.h
new file mode 100644
index 0000000..7c26f54
--- /dev/null
+++ b/arch/mips/include/debug_ll_common.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2012 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.
+ *
+ * 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_COMMON_H__
+#define __INCLUDE_ARCH_DEBUG_LL_COMMON_H__
+
+#include <asm/io.h>
+
+#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_COMMON_H__ */
-- 
1.7.10


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  reply	other threads:[~2012-05-10  9:34 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-10  9:32 [RFC 0/5] MIPS: add XBurst processor family support Antony Pavlov
2012-05-10  9:32 ` Antony Pavlov [this message]
2012-05-11  7:20   ` [RFC 1/5] MIPS: add common header file for DEBUG_LL via NS16550 Sascha Hauer
2012-05-11  9:11     ` Antony Pavlov
2012-05-10  9:32 ` [RFC 2/5] MIPS: add XBurst processor family support Antony Pavlov
2012-05-10  9:32 ` [RFC 3/5] MISP: XBurst: add JZ4755 CPU support Antony Pavlov
2012-05-10  9:32 ` [RFC 4/5] MIPS: XBurst: add Ritmix RZX-50 board support Antony Pavlov
2012-05-10 16:31   ` Jean-Christophe PLAGNIOL-VILLARD
2012-05-10  9:32 ` [RFC 5/5] MIPS: add defconfig for Ritmix RZX-50 board Antony Pavlov
2012-05-11  7:26 ` [RFC 0/5] MIPS: add XBurst processor family support Sascha Hauer

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