beagleboard/kernel

mmcblk1 does not appear for new beaglebone black board

Closed this issue · 5 comments

awadhesh39 commented

I have some new beagle bone black boards where I cannot find /dev/mmcblk1 only /dev/mmcblk0 is appearing for SD Card. I am using kernel version 3.8 and u-boot version v2013.07. Also I found at u-boot prompt command fatls mmc 1 shows invalid mmc or bad device.

After searching I found in recent board emmc driver is updated for that reason old emmc code of kernel and u-boot cannot initialise emmc and also found that in kernel version 4+ fixes are there.

I want to know is there any patches or fixes in old kernel version 3.18 and u-boot v2013 so that I can fix this issue without replacing my whole kernel and u-boot code.

RobertCNelson commented

@awadhesh39 this is a known issue on really old 3.8.13 based kernels.. Fixed on 3.8.13-bone80

https://gist.github.com/RobertCNelson/39faf80ddc9fcefae74dce2c6ca2eb45

Regards,

awadhesh39 commented

Thanks for your reply..

I have tried to run steps as provided above getting error:
....
.....
CC credential-cache.o
In file included from http.c:1:0:
http.h:6:23: fatal error: curl/curl.h: No such file or directory
#include <curl/curl.h>
^
compilation terminated.
make: *** [http.o] Error 1
make: *** Waiting for unfinished jobs....
In file included from http-walker.c:4:0:
http.h:6:23: fatal error: curl/curl.h: No such file or directory
#include <curl/curl.h>
^
......
........................................................................
I have kernel version "3.8.13-00745-g6e0b32d-dirty" [uname -r] hence I replaced it by

sed -i -e 's:3.8.13-bone86:3.8.13-00745-g6e0b32d-dirty:g' recipe.sh

I need some more clarifications:

  1. Is this procedure applicable version kernel: 3.8.13-00745-g6e0b32d-dirty?
  2. Where to run all these commands in kernel source folder?
RobertCNelson commented

@awadhesh39:

curl/curl.h : install the package on your linux distribution that provides that..

3.8.13-00745-g6e0b32d-dirty = is not MY release, first go figure out where you built that from, then add the two patches manually..

https://raw.githubusercontent.com/RobertCNelson/bb-kernel/am33x-v3.8/patches/emmc/0001-mmc-core-Update-the-ext-csd.rev-check-for-eMMC5.1.patch
https://raw.githubusercontent.com/RobertCNelson/bb-kernel/am33x-v3.8/patches/emmc/0002-mmc-Allow-forward-compatibility-for-eMMC.patch

I provide support for only MY releases, which the yakbuild script can build..

Regards,

RobertCNelson commented

PS, this repo is deprecated:

https://github.com/beagleboard/kernel/blob/master/README.md

This repo is now deprecated
Please see https://github.com/beagleboard/linux for the latest official kernels.

awadhesh39 commented

Thanks for your reply...
It is working now for new eMMc.