* Various fixes to make barebox's x86 support working again
@ 2011-01-07 8:35 Juergen Beisert
2011-01-07 8:35 ` [PATCH 01/10] x86: Remove not used expressions from the makefile Juergen Beisert
` (9 more replies)
0 siblings, 10 replies; 15+ messages in thread
From: Juergen Beisert @ 2011-01-07 8:35 UTC (permalink / raw)
To: barebox
The following changes since commit d4d7a192587bb25051dbc845aab45301d22e6ed3:
omap3: Define GFX_DIV values for OMAP34xx and OMAP36xx (2011-01-05 11:05:25 +0100)
are available in the git repository at:
git://git.pengutronix.de/git/jbe/for_barebox_next fix_x86_support
Juergen Beisert (10):
x86: Remove not used expressions from the makefile
x86: Use the generic linker script initializing
x86 ATA: Don't touch the size entry for the BIOS disk based device
x86 Generic platform: Fix some typos
x86 Generic platform: Fix disk drive name
x86 Generic platform: Fix prompt name
x86: Remove 'uboot' from file names
Change 'linux16' command to use getopt()
LINUX16: Add selection of the VESA video mode
LINUX16: Fix warning
arch/x86/Makefile | 11 ++--
arch/x86/boards/x86_generic/generic_pc.c | 6 +-
arch/x86/boot/Makefile | 2 +-
arch/x86/boot/boot_hdisk.S | 2 +-
.../boot/{prepare_uboot.c => prepare_barebox.c} | 0
arch/x86/configs/generic_defconfig | 2 +-
arch/x86/lib/barebox.lds.S | 2 +-
.../asm => mach-i386/include/mach}/barebox.lds.h | 14 -----
commands/linux16.c | 52 +++++++++++++++++---
drivers/ata/bios.c | 1 -
include/asm-generic/barebox.lds.h | 2 +-
scripts/setupmbr/setupmbr.c | 2 +-
12 files changed, 60 insertions(+), 36 deletions(-)
rename arch/x86/boot/{prepare_uboot.c => prepare_barebox.c} (100%)
rename arch/x86/{include/asm => mach-i386/include/mach}/barebox.lds.h (89%)
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 01/10] x86: Remove not used expressions from the makefile
2011-01-07 8:35 Various fixes to make barebox's x86 support working again Juergen Beisert
@ 2011-01-07 8:35 ` Juergen Beisert
2011-01-07 8:35 ` [PATCH 02/10] x86: Use the generic linker script initializing Juergen Beisert
` (8 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Juergen Beisert @ 2011-01-07 8:35 UTC (permalink / raw)
To: barebox
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
---
arch/x86/Makefile | 5 -----
1 files changed, 0 insertions(+), 5 deletions(-)
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 8ab40b6..e607b89 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -14,11 +14,6 @@ CPPFLAGS += -fdata-sections -ffunction-sections
LDFLAGS_uboot += -static --gc-sections
endif
-ifeq ($(incdir-y),)
-incdir-y := $(machine-y)
-endif
-INCDIR := arch-$(incdir-y)
-
all: $(KBUILD_IMAGE)
--
1.7.2.3
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* [PATCH 02/10] x86: Use the generic linker script initializing
2011-01-07 8:35 Various fixes to make barebox's x86 support working again Juergen Beisert
2011-01-07 8:35 ` [PATCH 01/10] x86: Remove not used expressions from the makefile Juergen Beisert
@ 2011-01-07 8:35 ` Juergen Beisert
2011-01-07 8:35 ` [PATCH 03/10] x86 ATA: Don't touch the size entry for the BIOS disk based device Juergen Beisert
` (7 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Juergen Beisert @ 2011-01-07 8:35 UTC (permalink / raw)
To: barebox
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
---
arch/x86/Makefile | 6 ++
arch/x86/include/asm/barebox.lds.h | 113 -------------------------
arch/x86/lib/barebox.lds.S | 2 +-
arch/x86/mach-i386/include/mach/barebox.lds.h | 99 ++++++++++++++++++++++
include/asm-generic/barebox.lds.h | 2 +-
scripts/setupmbr/setupmbr.c | 2 +-
6 files changed, 108 insertions(+), 116 deletions(-)
delete mode 100644 arch/x86/include/asm/barebox.lds.h
create mode 100644 arch/x86/mach-i386/include/mach/barebox.lds.h
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index e607b89..3b034c0 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -19,7 +19,13 @@ all: $(KBUILD_IMAGE)
+machdirs := $(patsubst %,arch/x86/mach-%/,$(machine-y))
+ifeq ($(KBUILD_SRC),)
+CPPFLAGS += $(patsubst %,-I%include,$(machdirs))
+else
+CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs))
+endif
ifneq ($(board-y),)
BOARD := arch/x86/boards/$(board-y)/
diff --git a/arch/x86/include/asm/barebox.lds.h b/arch/x86/include/asm/barebox.lds.h
deleted file mode 100644
index 6cbf15f..0000000
--- a/arch/x86/include/asm/barebox.lds.h
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright (C) 2009 Juergen Beisert, Pengutronix
- *
- * This program 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.
- *
- * 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 Adapt linker script content in accordance to Kconfig settings
- */
-
-#define INITCALLS \
- KEEP(*(.initcall.0)) \
- KEEP(*(.initcall.1)) \
- KEEP(*(.initcall.2)) \
- KEEP(*(.initcall.3)) \
- KEEP(*(.initcall.4)) \
- KEEP(*(.initcall.5)) \
- KEEP(*(.initcall.6)) \
- KEEP(*(.initcall.7))
-
-#define BAREBOX_CMDS KEEP(*(SORT_BY_NAME(.barebox_cmd*)))
-
-#define BAREBOX_SYMS KEEP(*(__usymtab))
-
-/**
- * Area in the MBR of the barebox basic boot code. This offset must be in
- * accordance to the 'indirect_sector_lba' label.
- */
-#define PATCH_AREA 400
-
-/**
- * Offset where to store the boot drive number (BIOS number, 1 byte)
- */
-#define PATCH_AREA_BOOT_DEV 16
-
-/**
- * Offset where to store information about the persistant environment storage
- * It points to an LBA number (8 bytes) and defines the first sector of this
- * storage on disk.
- */
-#define PATCH_AREA_PERS_START 20
-
-/**
- * Offset where to store information about the persistant environment storage
- * It points to a short number (2 bytes) and defines the sector count of this
- * storage on disk.
- */
-#define PATCH_AREA_PERS_SIZE 28
-
-/**
- * Offset where to store information about the persistant environment storage
- * drive number (BIOS number, 1 byte)
- */
-#define PATCH_AREA_PERS_DRIVE 30
-
-/**
- * Mark the persistant environment as not used
- */
-#define PATCH_AREA_PERS_SIZE_UNUSED 0x000
-
-/**
- * Mark a DAPS as unused/invalid
- */
-#define MARK_DAPS_INVALID 0x0000
-
-/**
- * Offset of the partition table in an MBR
- */
-#define OFFSET_OF_PARTITION_TABLE 446
-
-/**
- * Offset of the signature in an MBR
- */
-#define OFFSET_OF_SIGNATURE 510
-
-/**
- * Area where to store indirect sector to loop through. Keep this value
- * in accordance to the 'indirect_area' label. Note: .
- *
- * @attention These addresses are real mode ones (seg:offset)
- */
-#define INDIRECT_AREA 0x7A00
-#define INDIRECT_SEGMENT 0x0000
-
-/**
- * Area where to load sectors from disk to. They should start after the
- * MBR area and must be in accordance to the offset of the '.bootstrapping'
- * section in the linker file.
- *
- * @attention The address must be a multiple of 512.
- */
-#define LOAD_AREA 0x7e00
-#define LOAD_SEGMENT 0x0000
-
-/**
- * Size of one sector.
- */
-#define SECTOR_SIZE 512
diff --git a/arch/x86/lib/barebox.lds.S b/arch/x86/lib/barebox.lds.S
index 2917d2f..ca71369 100644
--- a/arch/x86/lib/barebox.lds.S
+++ b/arch/x86/lib/barebox.lds.S
@@ -20,7 +20,7 @@
*/
#undef i386
-#include <asm/barebox.lds.h>
+#include <asm-generic/barebox.lds.h>
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
OUTPUT_ARCH(i386)
diff --git a/arch/x86/mach-i386/include/mach/barebox.lds.h b/arch/x86/mach-i386/include/mach/barebox.lds.h
new file mode 100644
index 0000000..81c326e
--- /dev/null
+++ b/arch/x86/mach-i386/include/mach/barebox.lds.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2009 Juergen Beisert, Pengutronix
+ *
+ * This program 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.
+ *
+ * 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 Adapt linker script content in accordance to Kconfig settings
+ */
+
+/**
+ * Area in the MBR of the barebox basic boot code. This offset must be in
+ * accordance to the 'indirect_sector_lba' label.
+ */
+#define PATCH_AREA 400
+
+/**
+ * Offset where to store the boot drive number (BIOS number, 1 byte)
+ */
+#define PATCH_AREA_BOOT_DEV 16
+
+/**
+ * Offset where to store information about the persistant environment storage
+ * It points to an LBA number (8 bytes) and defines the first sector of this
+ * storage on disk.
+ */
+#define PATCH_AREA_PERS_START 20
+
+/**
+ * Offset where to store information about the persistant environment storage
+ * It points to a short number (2 bytes) and defines the sector count of this
+ * storage on disk.
+ */
+#define PATCH_AREA_PERS_SIZE 28
+
+/**
+ * Offset where to store information about the persistant environment storage
+ * drive number (BIOS number, 1 byte)
+ */
+#define PATCH_AREA_PERS_DRIVE 30
+
+/**
+ * Mark the persistant environment as not used
+ */
+#define PATCH_AREA_PERS_SIZE_UNUSED 0x000
+
+/**
+ * Mark a DAPS as unused/invalid
+ */
+#define MARK_DAPS_INVALID 0x0000
+
+/**
+ * Offset of the partition table in an MBR
+ */
+#define OFFSET_OF_PARTITION_TABLE 446
+
+/**
+ * Offset of the signature in an MBR
+ */
+#define OFFSET_OF_SIGNATURE 510
+
+/**
+ * Area where to store indirect sector to loop through. Keep this value
+ * in accordance to the 'indirect_area' label. Note: .
+ *
+ * @attention These addresses are real mode ones (seg:offset)
+ */
+#define INDIRECT_AREA 0x7A00
+#define INDIRECT_SEGMENT 0x0000
+
+/**
+ * Area where to load sectors from disk to. They should start after the
+ * MBR area and must be in accordance to the offset of the '.bootstrapping'
+ * section in the linker file.
+ *
+ * @attention The address must be a multiple of 512.
+ */
+#define LOAD_AREA 0x7e00
+#define LOAD_SEGMENT 0x0000
+
+/**
+ * Size of one sector.
+ */
+#define SECTOR_SIZE 512
diff --git a/include/asm-generic/barebox.lds.h b/include/asm-generic/barebox.lds.h
index fc141a4..2d1dc41 100644
--- a/include/asm-generic/barebox.lds.h
+++ b/include/asm-generic/barebox.lds.h
@@ -1,5 +1,5 @@
-#if defined CONFIG_ARCH_IMX25 || defined CONFIG_ARCH_IMX35 || defined CONFIG_ARCH_IMX51
+#if defined CONFIG_ARCH_IMX25 || defined CONFIG_ARCH_IMX35 || defined CONFIG_ARCH_IMX51 || defined CONFIG_X86
#include <mach/barebox.lds.h>
#endif
diff --git a/scripts/setupmbr/setupmbr.c b/scripts/setupmbr/setupmbr.c
index dd7f38c..74ede94 100644
--- a/scripts/setupmbr/setupmbr.c
+++ b/scripts/setupmbr/setupmbr.c
@@ -43,7 +43,7 @@
/* include the info from this barebox release */
#include "../../include/generated/utsrelease.h"
-#include "../../arch/x86/include/asm/barebox.lds.h"
+#include "../../arch/x86/mach-i386/include/mach/barebox.lds.h"
/** define to disable integrity tests and debug messages */
#define NDEBUG
--
1.7.2.3
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 03/10] x86 ATA: Don't touch the size entry for the BIOS disk based device
2011-01-07 8:35 Various fixes to make barebox's x86 support working again Juergen Beisert
2011-01-07 8:35 ` [PATCH 01/10] x86: Remove not used expressions from the makefile Juergen Beisert
2011-01-07 8:35 ` [PATCH 02/10] x86: Use the generic linker script initializing Juergen Beisert
@ 2011-01-07 8:35 ` Juergen Beisert
2011-01-07 8:35 ` [PATCH 04/10] x86 Generic platform: Fix some typos Juergen Beisert
` (6 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Juergen Beisert @ 2011-01-07 8:35 UTC (permalink / raw)
To: barebox
Only the platform sets this entry to setup the correct size or
signals the driver to guess the size of the attached disk.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
---
drivers/ata/bios.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/drivers/ata/bios.c b/drivers/ata/bios.c
index 51e2425..3f419cc 100644
--- a/drivers/ata/bios.c
+++ b/drivers/ata/bios.c
@@ -257,7 +257,6 @@ static int biosdisk_probe(struct device_d *dev)
strcpy(drive_dev->name, "biosdisk");
drive_dev->id = drive - 0x80;
- drive_dev->size = 1;
drive_dev->map_base = 0;
drive_dev->platform_data = p;
--
1.7.2.3
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 04/10] x86 Generic platform: Fix some typos
2011-01-07 8:35 Various fixes to make barebox's x86 support working again Juergen Beisert
` (2 preceding siblings ...)
2011-01-07 8:35 ` [PATCH 03/10] x86 ATA: Don't touch the size entry for the BIOS disk based device Juergen Beisert
@ 2011-01-07 8:35 ` Juergen Beisert
2011-01-07 8:35 ` [PATCH 05/10] x86 Generic platform: Fix disk drive name Juergen Beisert
` (5 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Juergen Beisert @ 2011-01-07 8:35 UTC (permalink / raw)
To: barebox
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
---
arch/x86/boards/x86_generic/generic_pc.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/boards/x86_generic/generic_pc.c b/arch/x86/boards/x86_generic/generic_pc.c
index b9c31aa..e156e0d 100644
--- a/arch/x86/boards/x86_generic/generic_pc.c
+++ b/arch/x86/boards/x86_generic/generic_pc.c
@@ -58,7 +58,7 @@ extern uint16_t pers_env_size;
extern uint8_t pers_env_drive;
/**
- * Persistant environment "not used" marker.
+ * Persistent environment "not used" marker.
* Note: Must be in accordance to the value the tool "setup_mbr" writes.
*/
#define PATCH_AREA_PERS_SIZE_UNUSED 0x000
@@ -80,7 +80,7 @@ static int devices_init(void)
DEVFS_PARTITION_FIXED, "env0");
printf("Partition: %d\n", rc);
} else
- printf("No persistant storage defined\n");
+ printf("No persistent storage defined\n");
return 0;
}
--
1.7.2.3
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 05/10] x86 Generic platform: Fix disk drive name
2011-01-07 8:35 Various fixes to make barebox's x86 support working again Juergen Beisert
` (3 preceding siblings ...)
2011-01-07 8:35 ` [PATCH 04/10] x86 Generic platform: Fix some typos Juergen Beisert
@ 2011-01-07 8:35 ` Juergen Beisert
2011-01-07 8:35 ` [PATCH 06/10] x86 Generic platform: Fix prompt name Juergen Beisert
` (4 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Juergen Beisert @ 2011-01-07 8:35 UTC (permalink / raw)
To: barebox
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
---
arch/x86/boards/x86_generic/generic_pc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/boards/x86_generic/generic_pc.c b/arch/x86/boards/x86_generic/generic_pc.c
index e156e0d..bfa94b9 100644
--- a/arch/x86/boards/x86_generic/generic_pc.c
+++ b/arch/x86/boards/x86_generic/generic_pc.c
@@ -74,7 +74,7 @@ static int devices_init(void)
register_device(&bios_disk_dev);
if (pers_env_size != PATCH_AREA_PERS_SIZE_UNUSED) {
- rc = devfs_add_partition("disk0", /* FIXME */
+ rc = devfs_add_partition("biosdisk0",
pers_env_storage * 512,
(unsigned)pers_env_size * 512,
DEVFS_PARTITION_FIXED, "env0");
--
1.7.2.3
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 06/10] x86 Generic platform: Fix prompt name
2011-01-07 8:35 Various fixes to make barebox's x86 support working again Juergen Beisert
` (4 preceding siblings ...)
2011-01-07 8:35 ` [PATCH 05/10] x86 Generic platform: Fix disk drive name Juergen Beisert
@ 2011-01-07 8:35 ` Juergen Beisert
2011-01-07 8:35 ` [PATCH 07/10] x86: Remove 'uboot' from file names Juergen Beisert
` (3 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Juergen Beisert @ 2011-01-07 8:35 UTC (permalink / raw)
To: barebox
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
---
arch/x86/configs/generic_defconfig | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/configs/generic_defconfig b/arch/x86/configs/generic_defconfig
index ee13e5c..57161f4 100644
--- a/arch/x86/configs/generic_defconfig
+++ b/arch/x86/configs/generic_defconfig
@@ -2,7 +2,7 @@ CONFIG_X86_HDBOOT=y
CONFIG_STACK_SIZE=0x7000
CONFIG_BROKEN=y
CONFIG_EXPERIMENTAL=y
-CONFIG_PROMPT="uboot:"
+CONFIG_PROMPT="barebox:"
CONFIG_LONGHELP=y
CONFIG_GLOB=y
CONFIG_CMDLINE_EDITING=y
--
1.7.2.3
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 07/10] x86: Remove 'uboot' from file names
2011-01-07 8:35 Various fixes to make barebox's x86 support working again Juergen Beisert
` (5 preceding siblings ...)
2011-01-07 8:35 ` [PATCH 06/10] x86 Generic platform: Fix prompt name Juergen Beisert
@ 2011-01-07 8:35 ` Juergen Beisert
2011-01-07 8:35 ` [PATCH 08/10] Change 'linux16' command to use getopt() Juergen Beisert
` (2 subsequent siblings)
9 siblings, 0 replies; 15+ messages in thread
From: Juergen Beisert @ 2011-01-07 8:35 UTC (permalink / raw)
To: barebox
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
---
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 <asm/segment.h>
+#include <asm/modes.h>
+#include <asm/io.h>
+#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 <asm/segment.h>
-#include <asm/modes.h>
-#include <asm/io.h>
-#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
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 08/10] Change 'linux16' command to use getopt()
2011-01-07 8:35 Various fixes to make barebox's x86 support working again Juergen Beisert
` (6 preceding siblings ...)
2011-01-07 8:35 ` [PATCH 07/10] x86: Remove 'uboot' from file names Juergen Beisert
@ 2011-01-07 8:35 ` Juergen Beisert
2011-01-07 8:35 ` [PATCH 09/10] LINUX16: Add selection of the VESA video mode Juergen Beisert
2011-01-07 8:35 ` [PATCH 10/10] LINUX16: Fix warning Juergen Beisert
9 siblings, 0 replies; 15+ messages in thread
From: Juergen Beisert @ 2011-01-07 8:35 UTC (permalink / raw)
To: barebox
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
---
commands/linux16.c | 16 ++++++++++++----
1 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/commands/linux16.c b/commands/linux16.c
index 5f412e2..87245d4 100644
--- a/commands/linux16.c
+++ b/commands/linux16.c
@@ -28,6 +28,7 @@
#include <environment.h>
#include <fs.h>
#include <errno.h>
+#include <getopt.h>
#include <malloc.h>
#include <asm/syslib.h>
@@ -153,18 +154,25 @@ struct linux_kernel_header {
static int do_linux16(struct command *cmdtp, int argc, char *argv[])
{
struct linux_kernel_header *lh = NULL;
- int rc;
+ int rc, opt;
unsigned setup_sects;
unsigned real_mode_size;
size_t image_size;
const char *cmdline = getenv("bootargs");
+ const char *kernel_file;
- if (argc < 2) {
- perror("linux16");
+ while((opt = getopt(argc, argv, "")) > 0) {
+ switch(opt) {
+ }
+ }
+
+ if (optind == argc) {
+ printf("No kernel filename given\n");
return 1;
}
+ kernel_file = argv[optind];
- lh = read_file(argv[1], &image_size);
+ lh = read_file(kernel_file, &image_size);
if (lh == NULL) {
printf("Cannot read file '%s'\n", argv[1]);
return 1;
--
1.7.2.3
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 09/10] LINUX16: Add selection of the VESA video mode
2011-01-07 8:35 Various fixes to make barebox's x86 support working again Juergen Beisert
` (7 preceding siblings ...)
2011-01-07 8:35 ` [PATCH 08/10] Change 'linux16' command to use getopt() Juergen Beisert
@ 2011-01-07 8:35 ` Juergen Beisert
2011-01-07 16:51 ` Jean-Christophe PLAGNIOL-VILLARD
2011-01-07 8:35 ` [PATCH 10/10] LINUX16: Fix warning Juergen Beisert
9 siblings, 1 reply; 15+ messages in thread
From: Juergen Beisert @ 2011-01-07 8:35 UTC (permalink / raw)
To: barebox
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
---
commands/linux16.c | 35 ++++++++++++++++++++++++++++++++---
1 files changed, 32 insertions(+), 3 deletions(-)
diff --git a/commands/linux16.c b/commands/linux16.c
index 87245d4..ba8db7c 100644
--- a/commands/linux16.c
+++ b/commands/linux16.c
@@ -141,6 +141,10 @@ struct linux_kernel_header {
#endif
} __attribute__ ((packed));
+/* This is -1. Keep this value in sync with the kernel */
+#define NORMAL_VGA 0xffff /* 80x25 mode */
+#define ASK_VGA 0xfffd /* ask for it at bootup */
+
/**
* Load an x86 Linux kernel bzImage and start it
* @param cmdtp FIXME
@@ -157,12 +161,24 @@ static int do_linux16(struct command *cmdtp, int argc, char *argv[])
int rc, opt;
unsigned setup_sects;
unsigned real_mode_size;
+ int vid_mode = NORMAL_VGA;
size_t image_size;
const char *cmdline = getenv("bootargs");
const char *kernel_file;
- while((opt = getopt(argc, argv, "")) > 0) {
+ while((opt = getopt(argc, argv, "v:")) > 0) {
switch(opt) {
+ case 'v':
+ vid_mode = simple_strtoul(optarg, NULL, 0);
+ if (vid_mode == 0) {
+ if (!strcmp(optarg, "ask"))
+ vid_mode = ASK_VGA;
+ else {
+ printf("Unknown video mode: %s\n", optarg);
+ return 1;
+ }
+ }
+ break;
}
}
@@ -227,6 +243,14 @@ static int do_linux16(struct command *cmdtp, int argc, char *argv[])
goto on_error;
}
+ /*
+ * The kernel does not check for the "vga=<val>" kernel command line
+ * parameter anymore. It expects this kind of information in the
+ * boot parameters instead.
+ */
+ if (vid_mode != NORMAL_VGA)
+ lh->vid_mode = vid_mode;
+
/* If SETUP_SECTS is not set, set it to the default. */
if (setup_sects == 0) {
printf("Fixing setup sector count\n");
@@ -297,8 +321,9 @@ on_error:
}
BAREBOX_CMD_HELP_START(linux16)
-BAREBOX_CMD_HELP_USAGE("linux16 <file>\n")
-BAREBOX_CMD_HELP_SHORT("Boot a kernel on x86 via real mode code.\n")
+BAREBOX_CMD_HELP_USAGE("linux16 <file> [-v <mode>]\n")
+BAREBOX_CMD_HELP_SHORT("Boot a kernel <file> on x86 via real mode code.\n")
+BAREBOX_CMD_HELP_OPT ("-v <mode>", "VESA video mode number or 'ask'\n")
BAREBOX_CMD_HELP_END
/**
@@ -307,6 +332,10 @@ BAREBOX_CMD_HELP_END
<p> Only kernel images in bzImage format are supported by now. See \ref
x86_boot_preparation for more info about how to use this command.</p>
+<p> For the video mode refer the Linux kernel documentation
+'Documentation/fb/vesafb.txt' for correct VESA mode numbers. If the keyword
+'ask' instead of a number is given, the starting kernel will ask for a number.
+
*/
BAREBOX_CMD_START(linux16)
--
1.7.2.3
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 10/10] LINUX16: Fix warning
2011-01-07 8:35 Various fixes to make barebox's x86 support working again Juergen Beisert
` (8 preceding siblings ...)
2011-01-07 8:35 ` [PATCH 09/10] LINUX16: Add selection of the VESA video mode Juergen Beisert
@ 2011-01-07 8:35 ` Juergen Beisert
9 siblings, 0 replies; 15+ messages in thread
From: Juergen Beisert @ 2011-01-07 8:35 UTC (permalink / raw)
To: barebox
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
---
commands/linux16.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/commands/linux16.c b/commands/linux16.c
index ba8db7c..6616dfd 100644
--- a/commands/linux16.c
+++ b/commands/linux16.c
@@ -260,7 +260,8 @@ static int do_linux16(struct command *cmdtp, int argc, char *argv[])
if (setup_sects >= 15) {
void *src = lh;
if (lh->kernel_version != 0)
- printf("Kernel version: '%s'\n", src + lh->kernel_version + DISK_SECTOR_SIZE);
+ printf("Kernel version: '%s'\n",
+ (char *)src + lh->kernel_version + DISK_SECTOR_SIZE);
}
/*
--
1.7.2.3
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^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 09/10] LINUX16: Add selection of the VESA video mode
2011-01-07 8:35 ` [PATCH 09/10] LINUX16: Add selection of the VESA video mode Juergen Beisert
@ 2011-01-07 16:51 ` Jean-Christophe PLAGNIOL-VILLARD
2011-01-13 15:22 ` Juergen Beisert
0 siblings, 1 reply; 15+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2011-01-07 16:51 UTC (permalink / raw)
To: Juergen Beisert; +Cc: barebox
> }
> }
>
> @@ -227,6 +243,14 @@ static int do_linux16(struct command *cmdtp, int argc, char *argv[])
> goto on_error;
> }
>
> + /*
> + * The kernel does not check for the "vga=<val>" kernel command line
> + * parameter anymore. It expects this kind of information in the
> + * boot parameters instead.
> + */
> + if (vid_mode != NORMAL_VGA)
> + lh->vid_mode = vid_mode;
> +
> /* If SETUP_SECTS is not set, set it to the default. */
> if (setup_sects == 0) {
> printf("Fixing setup sector count\n");
> @@ -297,8 +321,9 @@ on_error:
> }
>
> BAREBOX_CMD_HELP_START(linux16)
> -BAREBOX_CMD_HELP_USAGE("linux16 <file>\n")
> -BAREBOX_CMD_HELP_SHORT("Boot a kernel on x86 via real mode code.\n")
> +BAREBOX_CMD_HELP_USAGE("linux16 <file> [-v <mode>]\n")
> +BAREBOX_CMD_HELP_SHORT("Boot a kernel <file> on x86 via real mode code.\n")
> +BAREBOX_CMD_HELP_OPT ("-v <mode>", "VESA video mode number or 'ask'\n")
> BAREBOX_CMD_HELP_END
>
> /**
> @@ -307,6 +332,10 @@ BAREBOX_CMD_HELP_END
> <p> Only kernel images in bzImage format are supported by now. See \ref
> x86_boot_preparation for more info about how to use this command.</p>
>
> +<p> For the video mode refer the Linux kernel documentation
> +'Documentation/fb/vesafb.txt' for correct VESA mode numbers. If the keyword
> +'ask' instead of a number is given, the starting kernel will ask for a number.
missing </p>?
Best Regards,
J.
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^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 09/10] LINUX16: Add selection of the VESA video mode
2011-01-07 16:51 ` Jean-Christophe PLAGNIOL-VILLARD
@ 2011-01-13 15:22 ` Juergen Beisert
2011-01-13 15:25 ` Robert Schwebel
0 siblings, 1 reply; 15+ messages in thread
From: Juergen Beisert @ 2011-01-13 15:22 UTC (permalink / raw)
To: barebox
Jean-Christophe PLAGNIOL-VILLARD wrote:
> > }
> > }
> >
> > @@ -227,6 +243,14 @@ static int do_linux16(struct command *cmdtp, int
> > argc, char *argv[]) goto on_error;
> > }
> >
> > + /*
> > + * The kernel does not check for the "vga=<val>" kernel command line
> > + * parameter anymore. It expects this kind of information in the
> > + * boot parameters instead.
> > + */
> > + if (vid_mode != NORMAL_VGA)
> > + lh->vid_mode = vid_mode;
> > +
> > /* If SETUP_SECTS is not set, set it to the default. */
> > if (setup_sects == 0) {
> > printf("Fixing setup sector count\n");
> > @@ -297,8 +321,9 @@ on_error:
> > }
> >
> > BAREBOX_CMD_HELP_START(linux16)
> > -BAREBOX_CMD_HELP_USAGE("linux16 <file>\n")
> > -BAREBOX_CMD_HELP_SHORT("Boot a kernel on x86 via real mode code.\n")
> > +BAREBOX_CMD_HELP_USAGE("linux16 <file> [-v <mode>]\n")
> > +BAREBOX_CMD_HELP_SHORT("Boot a kernel <file> on x86 via real mode
> > code.\n") +BAREBOX_CMD_HELP_OPT ("-v <mode>", "VESA video mode number
> > or 'ask'\n") BAREBOX_CMD_HELP_END
> >
> > /**
> > @@ -307,6 +332,10 @@ BAREBOX_CMD_HELP_END
> > <p> Only kernel images in bzImage format are supported by now. See \ref
> > x86_boot_preparation for more info about how to use this command.</p>
> >
> > +<p> For the video mode refer the Linux kernel documentation
> > +'Documentation/fb/vesafb.txt' for correct VESA mode numbers. If the
> > keyword +'ask' instead of a number is given, the starting kernel will ask
> > for a number.
>
> missing </p>?
Hmm, do we really need the "</p>"?
jbe
--
Pengutronix e.K. | Juergen Beisert |
Linux Solutions for Science and Industry | Phone: +49-8766-939 228 |
Vertretung Sued/Muenchen, Germany | Fax: +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de/ |
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^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH 09/10] LINUX16: Add selection of the VESA video mode
2011-01-13 15:22 ` Juergen Beisert
@ 2011-01-13 15:25 ` Robert Schwebel
0 siblings, 0 replies; 15+ messages in thread
From: Robert Schwebel @ 2011-01-13 15:25 UTC (permalink / raw)
To: Juergen Beisert; +Cc: barebox
On Thu, Jan 13, 2011 at 04:22:20PM +0100, Juergen Beisert wrote:
> Hmm, do we really need the "</p>"?
<p>s should be closed with </p>.
rsc
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 09/10] LINUX16: Add selection of the VESA video mode
2011-03-08 14:48 [PATCH] Various fixes to make barebox's x86 support working again Juergen Beisert
@ 2011-03-08 14:48 ` Juergen Beisert
0 siblings, 0 replies; 15+ messages in thread
From: Juergen Beisert @ 2011-03-08 14:48 UTC (permalink / raw)
To: barebox
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
---
commands/linux16.c | 37 +++++++++++++++++++++++++++++++++----
1 files changed, 33 insertions(+), 4 deletions(-)
diff --git a/commands/linux16.c b/commands/linux16.c
index 87245d4..0cdb673 100644
--- a/commands/linux16.c
+++ b/commands/linux16.c
@@ -141,6 +141,10 @@ struct linux_kernel_header {
#endif
} __attribute__ ((packed));
+/* This is -1. Keep this value in sync with the kernel */
+#define NORMAL_VGA 0xffff /* 80x25 mode */
+#define ASK_VGA 0xfffd /* ask for it at bootup */
+
/**
* Load an x86 Linux kernel bzImage and start it
* @param cmdtp FIXME
@@ -157,12 +161,24 @@ static int do_linux16(struct command *cmdtp, int argc, char *argv[])
int rc, opt;
unsigned setup_sects;
unsigned real_mode_size;
+ int vid_mode = NORMAL_VGA;
size_t image_size;
const char *cmdline = getenv("bootargs");
const char *kernel_file;
- while((opt = getopt(argc, argv, "")) > 0) {
+ while((opt = getopt(argc, argv, "v:")) > 0) {
switch(opt) {
+ case 'v':
+ vid_mode = simple_strtoul(optarg, NULL, 0);
+ if (vid_mode == 0) {
+ if (!strcmp(optarg, "ask"))
+ vid_mode = ASK_VGA;
+ else {
+ printf("Unknown video mode: %s\n", optarg);
+ return 1;
+ }
+ }
+ break;
}
}
@@ -227,6 +243,14 @@ static int do_linux16(struct command *cmdtp, int argc, char *argv[])
goto on_error;
}
+ /*
+ * The kernel does not check for the "vga=<val>" kernel command line
+ * parameter anymore. It expects this kind of information in the
+ * boot parameters instead.
+ */
+ if (vid_mode != NORMAL_VGA)
+ lh->vid_mode = vid_mode;
+
/* If SETUP_SECTS is not set, set it to the default. */
if (setup_sects == 0) {
printf("Fixing setup sector count\n");
@@ -297,16 +321,21 @@ on_error:
}
BAREBOX_CMD_HELP_START(linux16)
-BAREBOX_CMD_HELP_USAGE("linux16 <file>\n")
-BAREBOX_CMD_HELP_SHORT("Boot a kernel on x86 via real mode code.\n")
+BAREBOX_CMD_HELP_USAGE("linux16 <file> [-v <mode>]\n")
+BAREBOX_CMD_HELP_SHORT("Boot a kernel <file> on x86 via real mode code.\n")
+BAREBOX_CMD_HELP_OPT ("-v <mode>", "VESA video mode number or 'ask'\n")
BAREBOX_CMD_HELP_END
/**
* @page linux16_command
-<p> Only kernel images in bzImage format are supported by now. See \ref
+<p>Only kernel images in bzImage format are supported by now. See \ref
x86_boot_preparation for more info about how to use this command.</p>
+<p>For the video mode refer the Linux kernel documentation
+'Documentation/fb/vesafb.txt' for correct VESA mode numbers. If the keyword
+'ask' instead of a number is given, the starting kernel will ask for a number.
+</p>
*/
BAREBOX_CMD_START(linux16)
--
1.7.2.3
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^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2011-03-08 14:48 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-01-07 8:35 Various fixes to make barebox's x86 support working again Juergen Beisert
2011-01-07 8:35 ` [PATCH 01/10] x86: Remove not used expressions from the makefile Juergen Beisert
2011-01-07 8:35 ` [PATCH 02/10] x86: Use the generic linker script initializing Juergen Beisert
2011-01-07 8:35 ` [PATCH 03/10] x86 ATA: Don't touch the size entry for the BIOS disk based device Juergen Beisert
2011-01-07 8:35 ` [PATCH 04/10] x86 Generic platform: Fix some typos Juergen Beisert
2011-01-07 8:35 ` [PATCH 05/10] x86 Generic platform: Fix disk drive name Juergen Beisert
2011-01-07 8:35 ` [PATCH 06/10] x86 Generic platform: Fix prompt name Juergen Beisert
2011-01-07 8:35 ` [PATCH 07/10] x86: Remove 'uboot' from file names Juergen Beisert
2011-01-07 8:35 ` [PATCH 08/10] Change 'linux16' command to use getopt() Juergen Beisert
2011-01-07 8:35 ` [PATCH 09/10] LINUX16: Add selection of the VESA video mode Juergen Beisert
2011-01-07 16:51 ` Jean-Christophe PLAGNIOL-VILLARD
2011-01-13 15:22 ` Juergen Beisert
2011-01-13 15:25 ` Robert Schwebel
2011-01-07 8:35 ` [PATCH 10/10] LINUX16: Fix warning Juergen Beisert
2011-03-08 14:48 [PATCH] Various fixes to make barebox's x86 support working again Juergen Beisert
2011-03-08 14:48 ` [PATCH 09/10] LINUX16: Add selection of the VESA video mode Juergen Beisert
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