From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by canuck.infradead.org with esmtps (Exim 4.72 #1 (Red Hat Linux)) id 1PwyD6-0003NS-99 for barebox@lists.infradead.org; Tue, 08 Mar 2011 14:48:35 +0000 Received: from octopus.hi.pengutronix.de ([2001:6f8:1178:2:215:17ff:fe12:23b0]) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1PwyD4-0007pJ-02 for barebox@lists.infradead.org; Tue, 08 Mar 2011 15:48:26 +0100 Received: from jbe by octopus.hi.pengutronix.de with local (Exim 4.69) (envelope-from ) id 1PwyD3-0003Fu-SO for barebox@lists.infradead.org; Tue, 08 Mar 2011 15:48:25 +0100 From: Juergen Beisert Date: Tue, 8 Mar 2011 15:48:21 +0100 Message-Id: <1299595704-11733-8-git-send-email-jbe@pengutronix.de> In-Reply-To: <1299595704-11733-1-git-send-email-jbe@pengutronix.de> References: <1299595704-11733-1-git-send-email-jbe@pengutronix.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 07/10] x86: Remove 'uboot' from file names To: barebox@lists.infradead.org Signed-off-by: Juergen Beisert --- arch/x86/boot/Makefile | 2 +- arch/x86/boot/boot_hdisk.S | 2 +- arch/x86/boot/prepare_barebox.c | 86 +++++++++++++++++++++++++++++++++++++++ arch/x86/boot/prepare_uboot.c | 86 --------------------------------------- 4 files changed, 88 insertions(+), 88 deletions(-) create mode 100644 arch/x86/boot/prepare_barebox.c delete mode 100644 arch/x86/boot/prepare_uboot.c diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index b92b475..83526b6 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -6,7 +6,7 @@ CPPFLAGS += -D__I386__ -fno-strict-aliasing -m32 -g -Os -march=i386 \ obj-$(CONFIG_X86_HDBOOT) += boot_main.o boot_hdisk.o -obj-$(CONFIG_X86_BIOS_BRINGUP) += prepare_uboot.o a20.o bioscall.o regs.o tty.o pmjump.o main_entry.o +obj-$(CONFIG_X86_BIOS_BRINGUP) += prepare_barebox.o a20.o bioscall.o regs.o tty.o pmjump.o main_entry.o obj-$(CONFIG_X86_VESA) += console_vesa.o obj-$(CONFIG_X86_VGA) += console_vga.o diff --git a/arch/x86/boot/boot_hdisk.S b/arch/x86/boot/boot_hdisk.S index fc4c4d5..9145ef1 100644 --- a/arch/x86/boot/boot_hdisk.S +++ b/arch/x86/boot/boot_hdisk.S @@ -168,7 +168,7 @@ output_message: .section .boot_data -notification_string: .asciz "UBOOT2 " +notification_string: .asciz "BAREBOX " chs_string: .asciz "CHS " jmp_string: .asciz "JMP " diff --git a/arch/x86/boot/prepare_barebox.c b/arch/x86/boot/prepare_barebox.c new file mode 100644 index 0000000..a68aced --- /dev/null +++ b/arch/x86/boot/prepare_barebox.c @@ -0,0 +1,86 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * Prepare the machine for transition to protected mode. + */ +#include +#include +#include +#include "boot.h" + +/* be aware of: */ +THIS_IS_REALMODE_CODE + +/* + * While we are in flat mode, we can't handle interrupts. But we can't + * switch them off for ever in the PIC, because we need them again while + * entering real mode code again and again.... + */ +static void __bootcode realmode_switch_hook(void) +{ + asm volatile("cli"); + outb(0x80, 0x70); /* Disable NMI */ + io_delay(); +} + +/* + * Reset IGNNE# if asserted in the FPU. + */ +static void __bootcode reset_coprocessor(void) +{ + outb(0, 0xf0); + io_delay(); + outb(0, 0xf1); + io_delay(); +} + +/** + * Setup and register the global descriptor table (GDT) + * + * @note This is for the first time only + */ +static void __bootcode setup_gdt(void) +{ + /* Xen HVM incorrectly stores a pointer to the gdt_ptr, instead + of the gdt_ptr contents. Thus, make it static so it will + stay in memory, at least long enough that we switch to the + proper kernel GDT. */ + static struct gdt_ptr __bootdata gdt_ptr; + + gdt_ptr.len = gdt_size - 1; + gdt_ptr.ptr = (uint32_t)&gdt + (ds() << 4); + + asm volatile("lgdtl %0" : : "m" (gdt_ptr)); +} + +static char a20_message[] __bootdata = "A20 gate not responding, unable to boot...\n"; + +/* + * Actual invocation sequence + */ +void __bootcode start_pre_uboot(void) +{ + /* Hook before leaving real mode, also disables interrupts */ + realmode_switch_hook(); + + /* Enable the A20 gate */ + if (enable_a20()) { + boot_puts(a20_message); + die(); + } + + /* Reset coprocessor (IGNNE#) */ + reset_coprocessor(); + + setup_gdt(); + /* Actual transition to protected mode... */ + protected_mode_jump(); +} diff --git a/arch/x86/boot/prepare_uboot.c b/arch/x86/boot/prepare_uboot.c deleted file mode 100644 index a68aced..0000000 --- a/arch/x86/boot/prepare_uboot.c +++ /dev/null @@ -1,86 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * Prepare the machine for transition to protected mode. - */ -#include -#include -#include -#include "boot.h" - -/* be aware of: */ -THIS_IS_REALMODE_CODE - -/* - * While we are in flat mode, we can't handle interrupts. But we can't - * switch them off for ever in the PIC, because we need them again while - * entering real mode code again and again.... - */ -static void __bootcode realmode_switch_hook(void) -{ - asm volatile("cli"); - outb(0x80, 0x70); /* Disable NMI */ - io_delay(); -} - -/* - * Reset IGNNE# if asserted in the FPU. - */ -static void __bootcode reset_coprocessor(void) -{ - outb(0, 0xf0); - io_delay(); - outb(0, 0xf1); - io_delay(); -} - -/** - * Setup and register the global descriptor table (GDT) - * - * @note This is for the first time only - */ -static void __bootcode setup_gdt(void) -{ - /* Xen HVM incorrectly stores a pointer to the gdt_ptr, instead - of the gdt_ptr contents. Thus, make it static so it will - stay in memory, at least long enough that we switch to the - proper kernel GDT. */ - static struct gdt_ptr __bootdata gdt_ptr; - - gdt_ptr.len = gdt_size - 1; - gdt_ptr.ptr = (uint32_t)&gdt + (ds() << 4); - - asm volatile("lgdtl %0" : : "m" (gdt_ptr)); -} - -static char a20_message[] __bootdata = "A20 gate not responding, unable to boot...\n"; - -/* - * Actual invocation sequence - */ -void __bootcode start_pre_uboot(void) -{ - /* Hook before leaving real mode, also disables interrupts */ - realmode_switch_hook(); - - /* Enable the A20 gate */ - if (enable_a20()) { - boot_puts(a20_message); - die(); - } - - /* Reset coprocessor (IGNNE#) */ - reset_coprocessor(); - - setup_gdt(); - /* Actual transition to protected mode... */ - protected_mode_jump(); -} -- 1.7.2.3 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox