[Buildroot] [PATCH v2 1/3] configs/freescale_imx6qsabresd: rename imx6 to imx6q

[Buildroot] [PATCH v2 1/3] configs/freescale_imx6qsabresd: rename imx6 to imx6q

[Luca Ceresoli]

This defconfig is specific to the SABRESD board equipped with the iMX6Q SoC.
Rename it for clarity in order to avoid confusion with the upcoming
defconfig for the iMX6DL version.

Suggested by Gary Bisson.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Gilles Talis <gilles.talis@gmail.com>
Cc: Gary Bisson <bisson.gary@gmail.com>
Cc: Vincent Stehl? <vincent.stehle@freescale.com>

---

This patch is new in v3.
---
 .../{freescale_imx6sabresd_defconfig => freescale_imx6qsabresd_defconfig} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename configs/{freescale_imx6sabresd_defconfig => freescale_imx6qsabresd_defconfig} (100%)

diff --git a/configs/freescale_imx6sabresd_defconfig b/configs/freescale_imx6qsabresd_defconfig
similarity index 100%
rename from configs/freescale_imx6sabresd_defconfig
rename to configs/freescale_imx6qsabresd_defconfig
-- 
1.9.1

[Buildroot] [PATCH v2 2/3] configs/freescale_imx6dlsabresd: add defconfig for iMX6DL SabreSD

[Luca Ceresoli]

This is very similar to freescale_imx6qsabresd_defconfig, which supports the
i.MX6Q ("Quad", quad core CPU) version of the board, except it supports the
i.MX6DL (DualLite, dual core CPU) version.

The differences are in the U-boot configuration and the device tree file.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Gilles Talis <gilles.talis@gmail.com>
Cc: Gary Bisson <bisson.gary@gmail.com>
Cc: Vincent Stehl? <vincent.stehle@freescale.com>

---

Changes since v2: nothing.
Changes since v1: nothing.
---
 configs/freescale_imx6dlsabresd_defconfig | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 configs/freescale_imx6dlsabresd_defconfig

diff --git a/configs/freescale_imx6dlsabresd_defconfig b/configs/freescale_imx6dlsabresd_defconfig
new file mode 100644
index 0000000..4177e16
--- /dev/null
+++ b/configs/freescale_imx6dlsabresd_defconfig
@@ -0,0 +1,27 @@
+# architecture
+BR2_arm=y
+BR2_cortex_a9=y
+
+# system
+BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"
+
+# kernel
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="git://git.freescale.com/imx/linux-2.6-imx.git"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="rel_imx_3.10.17_1.0.0_ga"
+BR2_LINUX_KERNEL_DEFCONFIG="imx_v7"
+BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x10008000"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx6dl-sabresd"
+
+# filesystem
+BR2_TARGET_ROOTFS_EXT2=y
+
+# bootloader
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BOARDNAME="mx6dlsabresd"
+BR2_TARGET_UBOOT_FORMAT_IMX=y
+BR2_TARGET_UBOOT_CUSTOM_GIT=y
+BR2_TARGET_UBOOT_CUSTOM_REPO_URL="git://git.freescale.com/imx/uboot-imx.git"
+BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION="rel_imx_3.10.17_1.0.0_ga"
-- 
1.9.1

[Buildroot] [PATCH v2 3/3] freescale/imx6-sabresd: document how to create a bootable SD

[Luca Ceresoli]

Document how to create a bootable SD card for the two supported SABRESD cards:
i.MX6Q and i.MX6DL.

The SD card creation relies on an ad-hoc script.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Gilles Talis <gilles.talis@gmail.com>
Cc: Gary Bisson <bisson.gary@gmail.com>
Cc: Vincent Stehl? <vincent.stehle@freescale.com>

---

Changes since v2:
 - when initially wiping the SD, also wipe the ext2 partition to prevent it
   from being automounted just after partitioning on desktop systems;
 - readme.txt: rename freescale_imx6{,q}sabresd_defconfig to take into account
   the added patch that renames the defconfig.

Changes since v1:
 - properly handle SD/MMC devices that don't need the "p" prefix before
   the partition number (reported by Vincent Stehl?);
 - mention serial terminal parameters in readme.txt (suggested by Vincent
   Stehl?).
---
 board/freescale/imx6sabresd/create-boot-sd.sh | 95 +++++++++++++++++++++++++++
 board/freescale/imx6sabresd/readme.txt        | 67 +++++++++++++++++++
 2 files changed, 162 insertions(+)
 create mode 100755 board/freescale/imx6sabresd/create-boot-sd.sh
 create mode 100644 board/freescale/imx6sabresd/readme.txt

diff --git a/board/freescale/imx6sabresd/create-boot-sd.sh b/board/freescale/imx6sabresd/create-boot-sd.sh
new file mode 100755
index 0000000..9930b1e
--- /dev/null
+++ b/board/freescale/imx6sabresd/create-boot-sd.sh
@@ -0,0 +1,95 @@
+#!/bin/sh
+
+set -u
+set -e
+
+PROGNAME=$(basename $0)
+
+usage()
+{
+    echo "Create an SD card that boots on an i.MX6DL SABRESD board."
+    echo "It is supposed to work also for the i.MX6Q SABRESD board, but"
+    echo "it this is not tested."
+    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
+
+# Unmount the partitions if mounted
+umount ${PART1} || true
+umount ${PART2} || true
+
+# First, clear the card
+dd if=/dev/zero of=${DEV} bs=1M count=20
+
+sync
+
+# Partition the card.
+# SD layout for i.MX6 boot:
+# - Bootloader at offset 1024
+# - FAT partition starting at 1MB offset, containing uImage and *.dtb
+# - ext2/3 partition formatted as ext2 or ext3, containing the root filesystem.
+sfdisk ${DEV} <<EOF
+32,480,b
+512,,L
+EOF
+
+sync
+
+# Copy the bootloader@offset 1024
+dd if=output/images/u-boot.imx of=${DEV} obs=512 seek=2
+
+# Prepare a temp dir for mounting partitions
+TMPDIR=$(mktemp -d)
+
+# FAT partition: kernel and DTBs
+mkfs.vfat ${PART1}
+mount ${PART1} ${TMPDIR}
+cp output/images/uImage ${TMPDIR}/
+cp output/images/*.dtb  ${TMPDIR}/
+sync
+umount ${TMPDIR}
+
+# ext2 partition: root filesystem
+mkfs.ext2 ${PART2}
+mount ${PART2} ${TMPDIR}
+tar -C ${TMPDIR}/ -xf output/images/rootfs.tar
+sync
+umount ${TMPDIR}
+
+# Cleanup
+rmdir ${TMPDIR}
+sync
+echo Done
diff --git a/board/freescale/imx6sabresd/readme.txt b/board/freescale/imx6sabresd/readme.txt
new file mode 100644
index 0000000..583ef40
--- /dev/null
+++ b/board/freescale/imx6sabresd/readme.txt
@@ -0,0 +1,67 @@
+*******************************************************
+Freescale i.MX6Q and i.MX6DL SABRESD development boards
+*******************************************************
+
+This file documents the Buildroot support for the Freescale SABRE Board for
+Smart Devices Based on the i.MX 6 Series (SABRESD).
+
+Read the SABRESD Quick Start Guide for an introduction to the board:
+http://cache.freescale.com/files/32bit/doc/quick_start_guide/SABRESDB_IMX6_QSG.pdf
+
+Build
+=====
+
+First, configure Buildroot for your SABRESD board.
+For i.MX6Q:
+
+  make freescale_imx6qsabresd_defconfig
+
+For i.MX6DL:
+
+  make freescale_imx6dlsabresd_defconfig
+
+Build all components:
+
+  make
+
+You will find in ./output/images/ the following files:
+  - imx6dl-sabresd.dtb or imx6q-sabresd.dtb
+  - rootfs.ext2
+  - rootfs.tar
+  - u-boot.imx
+  - uImage
+
+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, DTBs and root filesystem as needed.
+
+*** WARNING! The script will destroy all the card content. Use with care! ***
+
+  ./board/freescale/imx6sabresd/create-boot-sd.sh <your-sd-device>
+
+Boot the SABRESD board
+======================
+
+To boot your newly created system (refer to the SABRESD Quick Start Guide for
+guidance):
+- insert the SD card in the SD3 slot of the board;
+- locate the BOOT dip switches (SW6), set dips 2 and 7 to ON, all others to OFF;
+- connect a Micro USB cable to Debug Port and connect using a terminal emulator
+  at 115200 bps, 8n1;
+- power on the board.
+
+Enjoy!
+
+References
+==========
+
+https://community.freescale.com/docs/DOC-95015
+https://community.freescale.com/docs/DOC-95017
+https://community.freescale.com/docs/DOC-99218
-- 
1.9.1

[Buildroot] [PATCH v2 1/3] configs/freescale_imx6qsabresd: rename imx6 to imx6q

[Luca Ceresoli]

Aargh! The subject for this patchset should contain [PATCH v3], not
[PATCH v2]. Sorry for the mess.

-- 
Luca