* [Buildroot] [PATCH 2/2] config: Add defconfig for Freescale i.MX28 EVK
2015-03-18 18:06 [Buildroot] [PATCH 1/2] boot/uboot: add support for i.MX28 SD format Vincent Stehlé
@ 2015-03-18 18:06 ` Vincent Stehlé
2015-03-22 13:12 ` Arnout Vandecappelle
2015-03-18 19:53 ` [Buildroot] [PATCH 1/2] boot/uboot: add support for i.MX28 SD format Jörg Krause
2015-03-22 13:02 ` Arnout Vandecappelle
2 siblings, 1 reply; 5+ messages in thread
From: Vincent Stehlé @ 2015-03-18 18:06 UTC (permalink / raw)
To: buildroot
The i.MX28 Evaluation Kit (or EVK) is Freescale's evaluation board based on the
i.MX287 Applications Processor.
This defconfig is based on mainline u-boot and Linux kernel.
Also, we add an SD card creation script and documentation, shamelessly based on
the ones for i.MX5/6 by Luca Ceresoli.
Signed-off-by: Vincent Stehl? <vincent.stehle@freescale.com>
Cc: Luca Ceresoli <luca@lucaceresoli.net>
---
board/freescale/imx28evk/create-boot-sd.sh | 97 ++++++++++++++++++++++++++++++
board/freescale/imx28evk/readme.txt | 58 ++++++++++++++++++
configs/freescale_imx28evk_defconfig | 18 ++++++
3 files changed, 173 insertions(+)
create mode 100755 board/freescale/imx28evk/create-boot-sd.sh
create mode 100644 board/freescale/imx28evk/readme.txt
create mode 100644 configs/freescale_imx28evk_defconfig
diff --git a/board/freescale/imx28evk/create-boot-sd.sh b/board/freescale/imx28evk/create-boot-sd.sh
new file mode 100755
index 0000000..5e050cb
--- /dev/null
+++ b/board/freescale/imx28evk/create-boot-sd.sh
@@ -0,0 +1,97 @@
+#!/bin/sh
+
+set -u
+set -e
+
+PROGNAME=$(basename $0)
+
+usage()
+{
+ echo "Create an SD card that boots on an i.MX28 EVK board."
+ echo
+ echo "Note: all data on the the card will be completely deleted!"
+ echo "Use with care!"
+ echo "Superuser permissions may be required to write to the device."
+ echo
+ echo "Usage: ${PROGNAME} <sd_block_device>"
+ echo "Arguments:"
+ echo " <sd_block_device> The device to be written to"
+ echo
+ echo "Example: ${PROGNAME} /dev/mmcblk0"
+ echo
+}
+
+if [ $# -ne 1 ]; then
+ usage
+ exit 1
+fi
+
+if [ $(id -u) -ne 0 ]; then
+ echo "${PROGNAME} must be run as root"
+ exit 1
+fi
+
+DEV=${1}
+
+# The partition name prefix depends on the device name:
+# - /dev/sde -> /dev/sde1
+# - /dev/mmcblk0 -> /dev/mmcblk0p1
+if echo ${DEV}|grep -q mmcblk ; then
+ PART="p"
+else
+ PART=""
+fi
+
+PART1=${DEV}${PART}1
+PART2=${DEV}${PART}2
+PART3=${DEV}${PART}3
+
+# Unmount the partitions if mounted
+umount ${PART1} || true
+umount ${PART2} || true
+umount ${PART3} || true
+
+# First, clear the card
+dd if=/dev/zero of=${DEV} bs=1M count=20
+
+sync
+
+# Partition the card.
+# SD layout for i.MX28 boot:
+# - Special partition type 53 at sector 2048, containing an SD-SB-encapsulated u-boot
+# - FAT partition containing zImage
+# - ext2/3 partition formatted as ext2 or ext3, containing the root filesystem.
+sfdisk --force -u S ${DEV} <<EOF
+2048,2000,53
+4048,16000,b
+20048,,L
+EOF
+
+sync
+
+# Copy the bootloader@offset 2048
+# (We need to skip the partition table in the .sd, too.)
+dd if=output/images/u-boot.sd of=${DEV}1 bs=1M
+
+# Prepare a temp dir for mounting partitions
+TMPDIR=$(mktemp -d)
+
+# FAT partition: kernel
+mkfs.vfat ${PART2}
+mount ${PART2} ${TMPDIR}
+cp output/images/*Image ${TMPDIR}/
+cp output/images/*.dtb ${TMPDIR}/ || true
+sync
+umount ${TMPDIR}
+
+# ext2 partition: root filesystem
+mkfs.ext2 ${PART3}
+mount ${PART3} ${TMPDIR}
+tar -C ${TMPDIR}/ -xf output/images/rootfs.tar
+sync
+umount ${TMPDIR}
+
+# Cleanup
+rmdir ${TMPDIR}
+sync
+echo Done
diff --git a/board/freescale/imx28evk/readme.txt b/board/freescale/imx28evk/readme.txt
new file mode 100644
index 0000000..cbf6aae
--- /dev/null
+++ b/board/freescale/imx28evk/readme.txt
@@ -0,0 +1,58 @@
+**************************
+Freescale i.MX28 EVK board
+**************************
+
+This file documents the Buildroot support for the Freescale i.MX28 EVK board.
+
+Read the i.MX28 Evaluation Kit Quick Start Guide [1] for an introduction to the
+board.
+
+Build
+=====
+
+First, configure Buildroot for your i.MX28 EVK board:
+
+ make freescale_imx28evk_defconfig
+
+Build all components:
+
+ make
+
+You will find in ./output/images/ the following files:
+ - imx28-evk.dtb
+ - rootfs.tar
+ - u-boot.sd
+ - zImage
+
+Create a bootable SD card
+=========================
+
+To determine the device associated to the SD card have a look in the
+/proc/partitions file:
+
+ cat /proc/partitions
+
+Run the following script as root on your SD card. This will partition the card
+and copy the bootloader, kernel and root filesystem as needed.
+
+*** WARNING! The script will destroy all the card content. Use with care! ***
+
+ ./board/freescale/imx28evk/create-boot-sd.sh <your-sd-device>
+
+Boot the i.MX28 EVK board
+=========================
+
+To boot your newly created system (refer to the i.MX28 EVK Quick Start Guide
+[1] for guidance):
+- insert the SD card in the SD Card Socket 0 of the board;
+- verify that your i.MX28 EVK board jumpers and switches are set as mentioned
+ in the i.MX28 EVK Quick Start Guide [1];
+- connect an RS232 UART cable to the Debug UART Port and connect using a
+ terminal emulator at 115200 bps, 8n1;
+- power on the board.
+
+Enjoy!
+
+References
+==========
+[1] http://cache.freescale.com/files/32bit/doc/user_guide/EVK_imx28_QuickStart.pdf
diff --git a/configs/freescale_imx28evk_defconfig b/configs/freescale_imx28evk_defconfig
new file mode 100644
index 0000000..15cedeb
--- /dev/null
+++ b/configs/freescale_imx28evk_defconfig
@@ -0,0 +1,18 @@
+# architecture
+BR2_arm=y
+BR2_arm926t=y
+
+# system
+BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
+
+# kernel
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_DEFCONFIG="mxs"
+BR2_LINUX_KERNEL_ZIMAGE=y
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx28-evk"
+
+# bootloader
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BOARDNAME="mx28evk"
+BR2_TARGET_UBOOT_FORMAT_SD=y
--
2.1.4
^ permalink raw reply related [flat|nested] 5+ messages in thread* [Buildroot] [PATCH 2/2] config: Add defconfig for Freescale i.MX28 EVK
2015-03-18 18:06 ` [Buildroot] [PATCH 2/2] config: Add defconfig for Freescale i.MX28 EVK Vincent Stehlé
@ 2015-03-22 13:12 ` Arnout Vandecappelle
0 siblings, 0 replies; 5+ messages in thread
From: Arnout Vandecappelle @ 2015-03-22 13:12 UTC (permalink / raw)
To: buildroot
On 18/03/15 19:06, Vincent Stehl? wrote:
> The i.MX28 Evaluation Kit (or EVK) is Freescale's evaluation board based on the
> i.MX287 Applications Processor.
>
> This defconfig is based on mainline u-boot and Linux kernel.
>
> Also, we add an SD card creation script and documentation, shamelessly based on
> the ones for i.MX5/6 by Luca Ceresoli.
>
> Signed-off-by: Vincent Stehl? <vincent.stehle@freescale.com>
> Cc: Luca Ceresoli <luca@lucaceresoli.net>
> ---
[snip]
> diff --git a/configs/freescale_imx28evk_defconfig b/configs/freescale_imx28evk_defconfig
> new file mode 100644
> index 0000000..15cedeb
> --- /dev/null
> +++ b/configs/freescale_imx28evk_defconfig
> @@ -0,0 +1,18 @@
> +# architecture
> +BR2_arm=y
> +BR2_arm926t=y
> +
> +# system
> +BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
> +
> +# kernel
> +BR2_LINUX_KERNEL=y
> +BR2_LINUX_KERNEL_DEFCONFIG="mxs"
> +BR2_LINUX_KERNEL_ZIMAGE=y
> +BR2_LINUX_KERNEL_DTS_SUPPORT=y
> +BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx28-evk"
For reproducible builds, the kernel and bootloader versions should be fixed to
something that you tested.
I'll assume that that's 3.19.2 and 2015.01 and resubmit.
Regards,
Arnout
> +
> +# bootloader
> +BR2_TARGET_UBOOT=y
> +BR2_TARGET_UBOOT_BOARDNAME="mx28evk"
> +BR2_TARGET_UBOOT_FORMAT_SD=y
>
--
Arnout Vandecappelle arnout at mind be
Senior Embedded Software Architect +32-16-286500
Essensium/Mind http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint: 7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Buildroot] [PATCH 1/2] boot/uboot: add support for i.MX28 SD format
2015-03-18 18:06 [Buildroot] [PATCH 1/2] boot/uboot: add support for i.MX28 SD format Vincent Stehlé
2015-03-18 18:06 ` [Buildroot] [PATCH 2/2] config: Add defconfig for Freescale i.MX28 EVK Vincent Stehlé
@ 2015-03-18 19:53 ` Jörg Krause
2015-03-22 13:02 ` Arnout Vandecappelle
2 siblings, 0 replies; 5+ messages in thread
From: Jörg Krause @ 2015-03-18 19:53 UTC (permalink / raw)
To: buildroot
On Mi, 2015-03-18 at 19:06 +0100, Vincent Stehl? wrote:
> Allow to generate u-boot.sd, Freescale i.MX28 SB format with a header for
> booting from an SD card.
>
> U-boot includes an mxsboot tool to generate this format, starting from
> v2011.12.
>
> See u-boot doc/README.mxs.
>
> Signed-off-by: Vincent Stehl? <vincent.stehle@freescale.com>
> ---
> boot/uboot/Config.in | 12 ++++++++++++
> boot/uboot/uboot.mk | 5 +++++
> 2 files changed, 17 insertions(+)
>
> diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in
> index 03e6acc..cea993a 100644
> --- a/boot/uboot/Config.in
> +++ b/boot/uboot/Config.in
> @@ -117,6 +117,18 @@ config BR2_TARGET_UBOOT_FORMAT_SB
> depends on BR2_arm
> bool "u-boot.sb"
>
> +config BR2_TARGET_UBOOT_FORMAT_SD
> + depends on BR2_arm
> + bool "u-boot.sd"
> + help
> + This is Freescale i.MX28 SB format, with a header for booting from an
> + SD card.
> +
> + U-boot includes an mxsboot tool to generate this format, starting
> + from v2011.12.
> +
> + See doc/README.mxs.
> +
> config BR2_TARGET_UBOOT_FORMAT_CUSTOM
> bool "Custom (specify below)"
> help
> diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk
> index a9ba054..8fad5b4 100644
> --- a/boot/uboot/uboot.mk
> +++ b/boot/uboot/uboot.mk
> @@ -49,6 +49,9 @@ else ifeq ($(BR2_TARGET_UBOOT_FORMAT_SB),y)
> UBOOT_BIN = u-boot.sb
> UBOOT_MAKE_TARGET = $(UBOOT_BIN)
> UBOOT_DEPENDENCIES += host-elftosb
> +else ifeq ($(BR2_TARGET_UBOOT_FORMAT_SD),y)
> +UBOOT_BIN = u-boot.sd
> +UBOOT_MAKE_TARGET = u-boot.sb
> else ifeq ($(BR2_TARGET_UBOOT_FORMAT_CUSTOM),y)
> UBOOT_BIN = $(call qstrip,$(BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME))
> else
> @@ -116,6 +119,8 @@ define UBOOT_BUILD_CMDS
> $(TARGET_CONFIGURE_OPTS) \
> $(MAKE) -C $(@D) $(UBOOT_MAKE_OPTS) \
> $(UBOOT_MAKE_TARGET)
> + $(if $(BR2_TARGET_UBOOT_FORMAT_SD),
> + $(@D)/tools/mxsboot sd $(@D)/u-boot.sb $(@D)/u-boot.sd)
> endef
>
> define UBOOT_BUILD_OMAP_IFT
Happy to see Freescale patches here. Tested for a custom i.MX28 board.
Tested-by: J?rg Krause <joerg.krause@embedded.rocks>
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Buildroot] [PATCH 1/2] boot/uboot: add support for i.MX28 SD format
2015-03-18 18:06 [Buildroot] [PATCH 1/2] boot/uboot: add support for i.MX28 SD format Vincent Stehlé
2015-03-18 18:06 ` [Buildroot] [PATCH 2/2] config: Add defconfig for Freescale i.MX28 EVK Vincent Stehlé
2015-03-18 19:53 ` [Buildroot] [PATCH 1/2] boot/uboot: add support for i.MX28 SD format Jörg Krause
@ 2015-03-22 13:02 ` Arnout Vandecappelle
2 siblings, 0 replies; 5+ messages in thread
From: Arnout Vandecappelle @ 2015-03-22 13:02 UTC (permalink / raw)
To: buildroot
On 18/03/15 19:06, Vincent Stehl? wrote:
> Allow to generate u-boot.sd, Freescale i.MX28 SB format with a header for
> booting from an SD card.
>
> U-boot includes an mxsboot tool to generate this format, starting from
> v2011.12.
>
> See u-boot doc/README.mxs.
>
> Signed-off-by: Vincent Stehl? <vincent.stehle@freescale.com>
> ---
> boot/uboot/Config.in | 12 ++++++++++++
> boot/uboot/uboot.mk | 5 +++++
> 2 files changed, 17 insertions(+)
>
> diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in
> index 03e6acc..cea993a 100644
> --- a/boot/uboot/Config.in
> +++ b/boot/uboot/Config.in
> @@ -117,6 +117,18 @@ config BR2_TARGET_UBOOT_FORMAT_SB
> depends on BR2_arm
> bool "u-boot.sb"
>
> +config BR2_TARGET_UBOOT_FORMAT_SD
> + depends on BR2_arm
> + bool "u-boot.sd"
> + help
> + This is Freescale i.MX28 SB format, with a header for booting from an
Lines should wrap at 72 columns.
> + SD card.
> +
> + U-boot includes an mxsboot tool to generate this format, starting
> + from v2011.12.
U-Boot doesn't use v in its version specifiers.
> +
> + See doc/README.mxs.
Before 2013.07, it was called README.mx28_common
Before 2014.01, you needed elftosb to generate the BootStream image.
Unfortunately we can't automatically add that dependency because we can't detect
the U-Boot version. So, add this dependency unconditionally like is done for the
SB format.
> +
> config BR2_TARGET_UBOOT_FORMAT_CUSTOM
> bool "Custom (specify below)"
> help
> diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk
> index a9ba054..8fad5b4 100644
> --- a/boot/uboot/uboot.mk
> +++ b/boot/uboot/uboot.mk
> @@ -49,6 +49,9 @@ else ifeq ($(BR2_TARGET_UBOOT_FORMAT_SB),y)
> UBOOT_BIN = u-boot.sb
> UBOOT_MAKE_TARGET = $(UBOOT_BIN)
> UBOOT_DEPENDENCIES += host-elftosb
> +else ifeq ($(BR2_TARGET_UBOOT_FORMAT_SD),y)
> +UBOOT_BIN = u-boot.sd
> +UBOOT_MAKE_TARGET = u-boot.sb
Since sb and sd are visually so similar, I think it's worthwhile to add a small
comment here to say which is which. E.g.
# BootStream (.sb) file is built by U-Boot, we convert it to SD file
I'll send an updated series with these changes.
Regards,
Arnout
> else ifeq ($(BR2_TARGET_UBOOT_FORMAT_CUSTOM),y)
> UBOOT_BIN = $(call qstrip,$(BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME))
> else
> @@ -116,6 +119,8 @@ define UBOOT_BUILD_CMDS
> $(TARGET_CONFIGURE_OPTS) \
> $(MAKE) -C $(@D) $(UBOOT_MAKE_OPTS) \
> $(UBOOT_MAKE_TARGET)
> + $(if $(BR2_TARGET_UBOOT_FORMAT_SD),
> + $(@D)/tools/mxsboot sd $(@D)/u-boot.sb $(@D)/u-boot.sd)
> endef
>
> define UBOOT_BUILD_OMAP_IFT
>
--
Arnout Vandecappelle arnout at mind be
Senior Embedded Software Architect +32-16-286500
Essensium/Mind http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint: 7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
^ permalink raw reply [flat|nested] 5+ messages in thread