From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-ew0-f49.google.com ([209.85.215.49]) by canuck.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1QoXU8-0005zF-RG for barebox@lists.infradead.org; Wed, 03 Aug 2011 09:11:36 +0000 Received: by ewy3 with SMTP id 3so322853ewy.36 for ; Wed, 03 Aug 2011 02:11:26 -0700 (PDT) From: Antony Pavlov Date: Wed, 3 Aug 2011 13:10:55 +0400 Message-Id: <1312362661-31340-6-git-send-email-antonynpavlov@gmail.com> In-Reply-To: <1312362661-31340-1-git-send-email-antonynpavlov@gmail.com> References: <1312362661-31340-1-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 v9 06/12] MIPS: add Malta machine support to barebox To: barebox@lists.infradead.org The machine uses only big-endian mode. Only supported peripheral is serial port. The machine supports only MIPS32 CPUs. Signed-off-by: Antony Pavlov --- arch/mips/Kconfig | 22 ++++++++++++++ arch/mips/Makefile | 2 + arch/mips/mach-malta/Kconfig | 12 ++++++++ arch/mips/mach-malta/Makefile | 1 + arch/mips/mach-malta/include/mach/debug_ll.h | 40 ++++++++++++++++++++++++++ arch/mips/mach-malta/include/mach/hardware.h | 32 ++++++++++++++++++++ arch/mips/mach-malta/reset.c | 36 +++++++++++++++++++++++ 7 files changed, 145 insertions(+), 0 deletions(-) create mode 100644 arch/mips/mach-malta/Kconfig create mode 100644 arch/mips/mach-malta/Makefile create mode 100644 arch/mips/mach-malta/include/mach/debug_ll.h create mode 100644 arch/mips/mach-malta/include/mach/hardware.h create mode 100644 arch/mips/mach-malta/reset.c diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index b6d2c5e..a84d469 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -21,6 +21,28 @@ config GENERIC_LINKER_SCRIPT bool default y +menu "Machine selection" + +choice + prompt "System type" + default MACH_MIPS_MALTA + +config MACH_MIPS_MALTA + bool "MIPS Malta" + select CSRC_R4K_LIB + select DRIVER_SERIAL_NS16550 + select SYS_HAS_CPU_MIPS32_R1 + select SYS_HAS_CPU_MIPS32_R2 + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_BIG_ENDIAN + select HAS_DEBUG_LL + +endchoice + +source arch/mips/mach-malta/Kconfig + +endmenu + # # Endianess selection. Sufficiently obscure so many users don't know what to # answer,so we try hard to limit the available choices. Also the use of a diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 4cb5498..678c2b5 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -60,6 +60,8 @@ endif LDFLAGS_barebox += -nostdlib +machine-$(CONFIG_MACH_MIPS_MALTA) := malta + machdirs := $(patsubst %,arch/mips/mach-%/,$(machine-y)) ifeq ($(KBUILD_SRC),) diff --git a/arch/mips/mach-malta/Kconfig b/arch/mips/mach-malta/Kconfig new file mode 100644 index 0000000..6076a13 --- /dev/null +++ b/arch/mips/mach-malta/Kconfig @@ -0,0 +1,12 @@ +if MACH_MIPS_MALTA + +config ARCH_TEXT_BASE + hex + default 0xa0800000 + +choice + prompt "Board type" + +endchoice + +endif diff --git a/arch/mips/mach-malta/Makefile b/arch/mips/mach-malta/Makefile new file mode 100644 index 0000000..f3cc668 --- /dev/null +++ b/arch/mips/mach-malta/Makefile @@ -0,0 +1 @@ +obj-y += reset.o diff --git a/arch/mips/mach-malta/include/mach/debug_ll.h b/arch/mips/mach-malta/include/mach/debug_ll.h new file mode 100644 index 0000000..32d13c1 --- /dev/null +++ b/arch/mips/mach-malta/include/mach/debug_ll.h @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2011 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_H__ +#define __INCLUDE_ARCH_DEBUG_LL_H__ + +#include +#include + +#define rbr 0 +#define lsr 5 +#define LSR_THRE 0x20 /* Xmit holding register empty */ + +static __inline__ void putc(char ch) +{ + while (!(__raw_readb(DEBUG_LL_UART_ADDR + lsr) & LSR_THRE)); + __raw_writeb(ch, DEBUG_LL_UART_ADDR + rbr); +} + +#endif /* __INCLUDE_ARCH_DEBUG_LL_H__ */ diff --git a/arch/mips/mach-malta/include/mach/hardware.h b/arch/mips/mach-malta/include/mach/hardware.h new file mode 100644 index 0000000..f827cc3 --- /dev/null +++ b/arch/mips/mach-malta/include/mach/hardware.h @@ -0,0 +1,32 @@ +/* + * Copyright (C) 2011 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 + */ + +#ifndef __INCLUDE_ARCH_HARDWARE_H__ +#define __INCLUDE_ARCH_HARDWARE_H__ + +#define DEBUG_LL_UART_ADDR 0xb00003f8 + +/* + * Reset register. + */ +#define SOFTRES_REG 0xbf000500 +#define GORESET 0x42 + +#endif /* __INCLUDE_ARCH_HARDWARE_H__ */ diff --git a/arch/mips/mach-malta/reset.c b/arch/mips/mach-malta/reset.c new file mode 100644 index 0000000..2818e7c --- /dev/null +++ b/arch/mips/mach-malta/reset.c @@ -0,0 +1,36 @@ +/* + * Copyright (C) 2011 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 + * @brief Resetting an malta board + */ + +#include +#include +#include + +void __noreturn reset_cpu(ulong addr) +{ + __raw_writel(GORESET, (char *)SOFTRES_REG); + while (1); + /*NOTREACHED*/ +} +EXPORT_SYMBOL(reset_cpu); -- 1.7.5.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox