topic Re: Linux porting on imx6q sabresd in i.MX Processors

Linux porting on imx6q sabresd

chandrasekharma — Tue, 17 May 2016 08:46:20 GMT

Hi all,

I followed the below two links to port linux on imx6q sabresd board

1. uboot (u-boot.imx)

2. kernel (uImage)

u-boot on the i.MX6 sabre sd platform in a few commands

Linux on the i.MX6 sabre sd platform in a few commands

But I got some issues while building uboot.git and linux.git. I will share these issues with you, please help me if you get solution.

1. uboot issues

-> Unable to find u-boot configuration file for imx6 sabre sd board in u-boot.git source code mx6qsabresd_config

-> u-boot.bin generated successfully using different configuration file mx6q_sabresd_config but unable to find u-boot.imx

2. kernel issues

-> Unable to build using this configuration imx_v6_v7_defconfig

-> I changed configuration file to imx_v7_defconfig and kernel successfully build and uImage generated but unable to generate imx6q-sabresd.dtb

Finally I tried some thing which are working fine below as shown

1. sudo dd if=u-boot.bin of=/dev/sdc bs=1k seek=1 ; sync

Above command working fine and able to get u-boot prompt from my sabresd board platform but one message i painted with blue colour for your reference. So will you please guide me whether i am using correct configuration file or not in uboot level or Is this ok?

U-Boot 2009.08 (May 17 2016 - 12:29:51)

CPU: Freescale i.MX 6 family 0.2V at 792 MHz

Temperature: 23 C, calibration data 0x5914d67d

mx6q pll1: 792MHz

mx6q pll2: 528MHz

mx6q pll3: 480MHz

mx6q pll8: 50MHz

ipg clock : 66000000Hz

ipg per clock : 66000000Hz

uart clock : 80000000Hz

cspi clock : 60000000Hz

ahb clock : 132000000Hz

axi clock : 264000000Hz

emi_slow clock: 29333333Hz

ddr clock : 528000000Hz

usdhc1 clock : 200000000Hz

usdhc2 clock : 200000000Hz

usdhc3 clock : 200000000Hz

usdhc4 clock : 200000000Hz

nfc clock : 24000000Hz

Board: i.MX6Q-SABRESD: unknown-board Board: 0x63002 [POR ]

Boot Device: SD

I2C: ready

DRAM: 1 GB

MMC: FSL_USDHC: 0,FSL_USDHC: 1,FSL_USDHC: 2,FSL_USDHC: 3

*** Warning - bad CRC or MMC, using default environment

In: serial

Out: serial

Err: serial

Net: got MAC address from IIM: 00:04:9f:03:cd:0f

FEC0 [PRIME]

Hit any key to stop autoboot: 0

MX6Q SABRESD U-Boot >

2. Big problem how to partition sdcard for booting linux on sabresd imx6q board? Is there any script file?

So, hope you guys understand my issues.

Please help me and start discussion thanks in advance

Re: Linux porting on imx6q sabresd

igorpadykov — Tue, 17 May 2016 09:41:52 GMT

Hi chandrasekhar

if you are using U-Boot 2009.08, then suggest to use ltib REV L3.0.35_4.1.0 version :

Board Support Packages (38)

i.MX 6Quad, i.MX 6Dual, i.MX 6DualLite, i.MX 6Solo and i.MX 6Sololite Linux Binary Demo Files (REV L3.0.35_4.1.0)

http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/i.mx-applications-processors/i.mx-6-processors/i.mx6qp/sabre-board-for-smart-devices-reference-design-based-on-the-i.mx-6-series:RDIMX6SABREBRD?fpsp=1&tab=Design_Tools_Tab

One can follow Chapter 3 Building the Linux Platform, sect.8.2 Copying the Boot Loader Image

attached Linux Guide (it is included in BSP package)

U-Boot 2013 is used starting L3.10.17 linux kernel with device tree and

uses different build and programming options.

Best regards

igor

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Re: Linux porting on imx6q sabresd

chandrasekharma — Tue, 17 May 2016 12:24:45 GMT

Thank you Igor

But after completion of linux.git building I am still unable to see the imx6q-sabresd.dtb file under kernel 3.11.0

Re: Linux porting on imx6q sabresd

igorpadykov — Tue, 17 May 2016 13:31:50 GMT

kernel 3.11.0 is not officially supported, suggest to check

Re: Linux porting on imx6q sabresd

chandrasekharma — Thu, 19 May 2016 09:45:54 GMT

Here so many tags available suggest me one which i want to use.

v3.10

v3.10-rc1

v3.10-rc2

v3.10-rc3

v3.10-rc4

v3.10-rc5

v3.10-rc6

v3.10-rc7

Thanks in advance