From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.phytec.de ([217.6.246.34] helo=root.phytec.de) by casper.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1S4VEQ-0002sk-24 for barebox@lists.infradead.org; Mon, 05 Mar 2012 10:33:31 +0000 Received: from idefix.phytec.de (idefix.phytec.de [172.16.0.10]) by root.phytec.de (Postfix) with ESMTP id C0CE4BF0F0 for ; Sun, 4 Mar 2012 12:49:21 +0100 (CET) From: Jan Weitzel Date: Mon, 5 Mar 2012 11:33:26 +0100 Message-Id: <1330943606-2387-1-git-send-email-j.weitzel@phytec.de> 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] mach-omap: add HAS_DEBUG_LL To: barebox@lists.infradead.org Add support for debug_ll Signed-off-by: Jan Weitzel --- arch/arm/Kconfig | 1 + arch/arm/mach-omap/include/mach/debug_ll.h | 54 ++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+), 0 deletions(-) create mode 100644 arch/arm/mach-omap/include/mach/debug_ll.h diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 4c0ee58..67a1009 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -61,6 +61,7 @@ config ARCH_NOMADIK config ARCH_OMAP bool "TI OMAP" + select HAS_DEBUG_LL config ARCH_PXA bool "Intel/Marvell PXA based" diff --git a/arch/arm/mach-omap/include/mach/debug_ll.h b/arch/arm/mach-omap/include/mach/debug_ll.h new file mode 100644 index 0000000..be388d1 --- /dev/null +++ b/arch/arm/mach-omap/include/mach/debug_ll.h @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2011 + * Author: Jan Weitzel + * based on arch/arm/mach-versatile/include/mach/debug_ll.h + * + * barebox is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * barebox 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 barebox. If not, see . + */ + +#ifndef __MACH_DEBUG_LL_H__ +#define __MACH_DEBUG_LL_H__ + +#include + +#ifdef CONFIG_ARCH_OMAP3 +#include + +#ifdef CONFIG_OMAP3EVM_UART1 +#define UART_BASE OMAP_UART1_BASE +#else +#define UART_BASE OMAP_UART3_BASE +#endif + +#endif + +#ifdef CONFIG_ARCH_OMAP4 +#include +#define UART_BASE OMAP44XX_UART3_BASE +#endif + +#define LSR_THRE 0x20 /* Xmit holding register empty */ +#define LSR (5 << 2) +#define THR (0 << 2) + +static inline void putc(char c) +{ + /* Wait until there is space in the FIFO */ + while ((readb(UART_BASE + LSR) & LSR_THRE) == 0); + /* Send the character */ + writeb(c, UART_BASE + THR); + /* Wait to make sure it hits the line, in case we die too soon. */ + while ((readb(UART_BASE + LSR) & LSR_THRE) == 0); +} +#endif -- 1.7.0.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox