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imx6sabresd: boot to /init in mfgtools mode

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Buildroot supplies a nice /init wrapper script to use when booting from a
ramdisk.

We add a patch to u-boot to tell the kernel to boot into /init (instead of
/linuxrc) on i.MX6, when booting in mfgtools mode. This way we can boot a
buildroot system entirely through USB.

Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com
[Luca: rebase on top of iMX6DL patches and patch iMX6DL defconfig as well]
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
[Luca: build- and run-tested on i.MX6DL SABRESD]
Tested-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Gary Bisson <bisson.gary@gmail.com>
Cc: Thomas De Schampheleire <patrickdepinguin+buildroot@gmail.com>
Cc: Gilles Talis <gilles.talis@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Vincent Stehlé 2014-09-19 16:12:52 +02:00 committed by Thomas Petazzoni
parent 7aff66f5b5
commit 8bc74c5258
3 changed files with 38 additions and 0 deletions
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36
board/freescale/imx6sabresd/uboot-0001-mx6qsabre_common-boot-Linux-to-init-in-mfgtools-mode.patch Normal file
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@ -0,0 +1,36 @@
From 4a7cd7c5b165317dccf45cfc235da3e14bc339e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vincent=20Stehl=C3=A9?= <vincent.stehle@freescale.com>
Date: Tue, 12 Aug 2014 10:17:31 +0200
Subject: [PATCH] mx6qsabre_common: boot Linux to /init in mfgtools mode
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Buildroot supplies a nice /init wrapper script to use when booting from a
ramdisk.
This patch tells u-boot to tell the kernel to boot into /init (instead of
/linuxrc) on i.MX6, when booting in mfgtools mode. This way we can boot a
buildroot system entirely through USB.
Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com>
---
include/configs/mx6qsabre_common.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/configs/mx6qsabre_common.h b/include/configs/mx6qsabre_common.h
index 69ff0df..ec7b665 100644
--- a/include/configs/mx6qsabre_common.h
+++ b/include/configs/mx6qsabre_common.h
@@ -129,7 +129,7 @@
#define CONFIG_MFG_ENV_SETTINGS \
"mfgtool_args=setenv bootargs console=" CONFIG_CONSOLE_DEV ",115200 " \
- "rdinit=/linuxrc " \
+ "rdinit=/init " \
"g_mass_storage.stall=0 g_mass_storage.removable=1 " \
"g_mass_storage.idVendor=0x066F g_mass_storage.idProduct=0x37FF "\
"g_mass_storage.iSerialNumber=\"\" "\
--
2.0.1

1
configs/freescale_imx6dlsabresd_defconfig
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@ -25,3 +25,4 @@ 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"
BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR="board/freescale/imx6sabresd"

1
configs/freescale_imx6qsabresd_defconfig
View File

@ -25,3 +25,4 @@ 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"
BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR="board/freescale/imx6sabresd"