* Re: [yocto] Raspberry PI enabling MMC1
2020-11-17 8:08 ` [yocto] " Khem Raj
@ 2020-11-18 0:29 ` chuck kamas
2020-11-18 0:29 ` chuck kamas
` (3 subsequent siblings)
4 siblings, 0 replies; 14+ messages in thread
From: chuck kamas @ 2020-11-18 0:29 UTC (permalink / raw)
To: Khem Raj; +Cc: Yocto-mailing-list
[-- Attachment #1: Type: text/plain, Size: 2059 bytes --]
Raj,
Thanks for taking the time to respond. I thought of that too. My custom
Yocto build has the line to turn on the sdio in it:
> dtoverlay=sdio,poll_once=off
I have attached the entire file: config.txt.yocto
However, the Rasbian image does not have any mention of the dtoverlay
for the sdio. Curious. See config.txt attached.
Thanks for the help!
Chuck
On 11/17/20 12:08 AM, Khem Raj wrote:
> On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
> lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
> wrote:
>> Hi all,
>>
>>
>> I have been spinning my wheels for two days trying to discover how to
>> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
>> on the CM3 and it inits the MMC1 and its pins just fine. I can
>> read/write to my SD card from it etc. However, when I build yocto it
>> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
>> I have tried changing the device tree as described here:
>>
>> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
>>
>> That compiles and add the .dtbo to my build, but still the GPIOS are not
>> set to MMC1 mode.
>>
>>> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
>>> Pinmux settings per pin
>>> Format: pin (name): mux_owner gpio_owner hog?
>>> ....
>>>
>>> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>
>>> .....
>>>
>> I have looked at:
>>
>> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
>>
>>
>> Any ideas of where to look next to turn on the sdio would be appreciated!
>>
>>
> what does /boot/config.txt look like on raspbian and yocto built images
>
>> Chuck
>>
>>
>>
>>
>>
[-- Attachment #2: config.txt.yocto --]
[-- Type: text/plain, Size: 36441 bytes --]
dtdebug=1
################################################################################
## Raspberry Pi Configuration Settings
##
## Revision 16, 2013/06/22
##
## Details taken from the eLinux wiki
## For up-to-date information please refer to wiki page.
##
## Wiki Location : http://elinux.org/RPiconfig
##
##
## Description:
## Details of each setting are described with each section that begins with
## a double hashed comment ('##')
## It is up to the user to remove the single hashed comment ('#') from each
## option they want to enable, and to set the specific value of that option.
##
## Overclock settings will be disabled at runtime if the SoC reaches temp_limit
##
################################################################################
################################################################################
## Standard Definition Video Settings
################################################################################
## sdtv_mode
## defines the TV standard for composite output
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal NTSC (Default)
## 1 Japanese version of NTSC - no pedestal
## 2 Normal PAL
## 3 Brazilian version of PAL - 525/60 rather than 625/50, different
## subcarrier
##
#sdtv_mode=0
## sdtv_aspect
## defines the aspect ratio for composite output
##
## Value Description
## -------------------------------------------------------------------------
## 1 4:3 (Default)
## 2 14:9
## 3 16:9
##
#sdtv_aspect=1
## sdtv_disable_colourburst
## Disables colour burst on composite output. The picture will be
## monochrome, but possibly sharper
##
## Value Description
## -------------------------------------------------------------------------
## 0 Colour burst is enabled (Default)
## 1 Colour burst is disabled
##
#sdtv_disable_colourburst=1
################################################################################
## High Definition Video Settings
################################################################################
## hdmi_safe
## Use "safe mode" settings to try to boot with maximum hdmi compatibility.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Enabled (this does: hdmi_force_hotplug=1,
## hdmi_ignore_edid=0xa5000080,
## config_hdmi_boost=4, hdmi_group=2,
## hdmi_mode=4, disable_overscan=0,
## overscan_left=24, overscan_right=24,
## overscan_top=24, overscan_bottom=24)
##
#hdmi_safe=1
## hdmi_force_hotplug
## Pretends HDMI hotplug signal is asserted so it appears a HDMI display
## is attached
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Use HDMI mode even if no HDMI monitor is detected
##
#hdmi_force_hotplug=1
## hdmi_ignore_hotplug
## Pretends HDMI hotplug signal is not asserted so it appears a HDMI
## display is not attached
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Use composite mode even if HDMI monitor is detected
##
#hdmi_ignore_hotplug=1
## hdmi_drive
## chooses between HDMI and DVI modes
##
## Value Description
## -------------------------------------------------------------------------
## 1 Normal DVI mode (No sound)
## 2 Normal HDMI mode (Sound will be sent if supported and enabled)
##
#hdmi_drive=2
## hdmi_ignore_edid
## Enables the ignoring of EDID/display data
##
#hdmi_ignore_edid=0xa5000080
## hdmi_edid_file
## Read the EDID data from the edid.dat file instead of from the attached
## device
##
## Value Description
## -------------------------------------------------------------------------
## 0 Read EDID data from attached device (Default)
## 1 Read EDID data from edid.txt file
##
#hdmi_edid_file=1
## hdmi_ignore_edid_audio
## Pretends all audio formats are unsupported by display. This means ALSA
## will default to analogue.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend all audio formats are unsupported
##
#hdmi_ignore_edid_audio=1
## hdmi_force_edid_audio
## Pretends all audio formats are supported by display, allowing
## passthrough of DTS/AC3 even when not reported as supported.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend all audio formats are supported
##
#hdmi_force_edid_audio=1
## hdmi_force_edid_3d
## Pretends all CEA modes support 3D even when edid doesn't indicate
## support for them.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend 3D mode is supported
##
#hdmi_force_edid_3d=1
## avoid_edid_fuzzy_match
## Avoid fuzzy matching of modes described in edid.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use fuzzy matching (Default)
## 1 Avoid fuzzy matching
##
#avoid_edid_fuzzy_match=1
## hdmi_pixel_encoding
## Force the pixel encoding mode.
## By default it will use the mode requested from edid so shouldn't
## need changing.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 RGB limited (16-235)
## 2 RGB full ( 0-255)
## 3 YCbCr limited (16-235)
## 4 YCbCr limited ( 0-255)
##
#hdmi_pixel_encoding=1
## hdmi_group
## Defines the HDMI type
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use the preferred group reported by the edid (Default)
## 1 CEA
## 2 DMT
##
#hdmi_group=1
## hdmi_mode
## defines screen resolution in CEA or DMT format
##
## H means 16:9 variant (of a normally 4:3 mode).
## 2x means pixel doubled (i.e. higher clock rate, with each pixel repeated
## twice)
## 4x means pixel quadrupled (i.e. higher clock rate, with each pixel
## repeated four times)
## reduced blanking means fewer bytes are used for blanking within the data
## stream (i.e. lower clock rate, with fewer wasted bytes)
##
## Value hdmi_group=CEA hdmi_group=DMT
## -------------------------------------------------------------------------
## 1 VGA 640x350 85Hz
## 2 480p 60Hz 640x400 85Hz
## 3 480p 60Hz H 720x400 85Hz
## 4 720p 60Hz 640x480 60Hz
## 5 1080i 60Hz 640x480 72Hz
## 6 480i 60Hz 640x480 75Hz
## 7 480i 60Hz H 640x480 85Hz
## 8 240p 60Hz 800x600 56Hz
## 9 240p 60Hz H 800x600 60Hz
## 10 480i 60Hz 4x 800x600 72Hz
## 11 480i 60Hz 4x H 800x600 75Hz
## 12 240p 60Hz 4x 800x600 85Hz
## 13 240p 60Hz 4x H 800x600 120Hz
## 14 480p 60Hz 2x 848x480 60Hz
## 15 480p 60Hz 2x H 1024x768 43Hz DO NOT USE
## 16 1080p 60Hz 1024x768 60Hz
## 17 576p 50Hz 1024x768 70Hz
## 18 576p 50Hz H 1024x768 75Hz
## 19 720p 50Hz 1024x768 85Hz
## 20 1080i 50Hz 1024x768 120Hz
## 21 576i 50Hz 1152x864 75Hz
## 22 576i 50Hz H 1280x768 reduced blanking
## 23 288p 50Hz 1280x768 60Hz
## 24 288p 50Hz H 1280x768 75Hz
## 25 576i 50Hz 4x 1280x768 85Hz
## 26 576i 50Hz 4x H 1280x768 120Hz reduced blanking
## 27 288p 50Hz 4x 1280x800 reduced blanking
## 28 288p 50Hz 4x H 1280x800 60Hz
## 29 576p 50Hz 2x 1280x800 75Hz
## 30 576p 50Hz 2x H 1280x800 85Hz
## 31 1080p 50Hz 1280x800 120Hz reduced blanking
## 32 1080p 24Hz 1280x960 60Hz
## 33 1080p 25Hz 1280x960 85Hz
## 34 1080p 30Hz 1280x960 120Hz reduced blanking
## 35 480p 60Hz 4x 1280x1024 60Hz
## 36 480p 60Hz 4x H 1280x1024 75Hz
## 37 576p 50Hz 4x 1280x1024 85Hz
## 38 576p 50Hz 4x H 1280x1024 120Hz reduced blanking
## 39 1080i 50Hz reduced blanking 1360x768 60Hz
## 40 1080i 100Hz 1360x768 120Hz reduced blanking
## 41 720p 100Hz 1400x1050 reduced blanking
## 42 576p 100Hz 1400x1050 60Hz
## 43 576p 100Hz H 1400x1050 75Hz
## 44 576i 100Hz 1400x1050 85Hz
## 45 576i 100Hz H 1400x1050 120Hz reduced blanking
## 46 1080i 120Hz 1440x900 reduced blanking
## 47 720p 120Hz 1440x900 60Hz
## 48 480p 120Hz 1440x900 75Hz
## 49 480p 120Hz H 1440x900 85Hz
## 50 480i 120Hz 1440x900 120Hz reduced blanking
## 51 480i 120Hz H 1600x1200 60Hz
## 52 576p 200Hz 1600x1200 65Hz
## 53 576p 200Hz H 1600x1200 70Hz
## 54 576i 200Hz 1600x1200 75Hz
## 55 576i 200Hz H 1600x1200 85Hz
## 56 480p 240Hz 1600x1200 120Hz reduced blanking
## 57 480p 240Hz H 1680x1050 reduced blanking
## 58 480i 240Hz 1680x1050 60Hz
## 59 480i 240Hz H 1680x1050 75Hz
## 60 1680x1050 85Hz
## 61 1680x1050 120Hz reduced blanking
## 62 1792x1344 60Hz
## 63 1792x1344 75Hz
## 64 1792x1344 120Hz reduced blanking
## 65 1856x1392 60Hz
## 66 1856x1392 75Hz
## 67 1856x1392 120Hz reduced blanking
## 68 1920x1200 reduced blanking
## 69 1920x1200 60Hz
## 70 1920x1200 75Hz
## 71 1920x1200 85Hz
## 72 1920x1200 120Hz reduced blanking
## 73 1920x1440 60Hz
## 74 1920x1440 75Hz
## 75 1920x1440 120Hz reduced blanking
## 76 2560x1600 reduced blanking
## 77 2560x1600 60Hz
## 78 2560x1600 75Hz
## 79 2560x1600 85Hz
## 80 2560x1600 120Hz reduced blanking
## 81 1366x768 60Hz
## 82 1080p 60Hz
## 83 1600x900 reduced blanking
## 84 2048x1152 reduced blanking
## 85 720p 60Hz
## 86 1366x768 reduced blanking
##
#hdmi_mode=1
## config_hdmi_boost
## configure the signal strength of the HDMI interface.
##
## Value Description
## -------------------------------------------------------------------------
## 0 (Default)
## 1
## 2
## 3
## 4 Try if you have interference issues with HDMI
## 5
## 6
## 7 Maximum
##
#config_hdmi_boost=0
## hdmi_ignore_cec_init
## Doesn't sent initial active source message. Avoids bringing
## (CEC enabled) TV out of standby and channel switch when rebooting.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal behaviour (Default)
## 1 Doesn't sent initial active source message
##
#hdmi_ignore_cec_init=1
## hdmi_ignore_cec
## Pretends CEC is not supported at all by TV.
## No CEC functions will be supported.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal behaviour (Default)
## 1 Pretend CEC is not supported by TV
##
#hdmi_ignore_cec=1
################################################################################
## Overscan Video Settings
################################################################################
## overscan_left
## Number of pixels to skip on left
##
#overscan_left=0
## overscan_right
## Number of pixels to skip on right
##
#overscan_right=0
## overscan_top
## Number of pixels to skip on top
##
#overscan_top=0
## overscan_bottom
## Number of pixels to skip on bottom
##
#overscan_bottom=0
## disable_overscan
## Set to 1 to disable overscan
##
## Value Description
## -------------------------------------------------------------------------
## 0 Overscan Enabled (Default)
## 1 Overscan Disabled
##
disable_overscan=1
################################################################################
## Framebuffer Video Settings
################################################################################
## framebuffer_width
## Console framebuffer width in pixels. Default is display width minus
## overscan.
##
#framebuffer_width=0
## framebuffer_height
## Console framebuffer height in pixels. Default is display height minus
## overscan.
##
#framebuffer_height=0
## framebuffer_depth
## Console framebuffer depth in bits per pixel.
##
## Value Description
## -------------------------------------------------------------------------
## 8 Valid, but default RGB palette makes an unreadable screen
## 16 (Default)
## 24 Looks better but has corruption issues as of 2012/06/15
## 32 Has no corruption issues but needs framebuffer_ignore_alpha=1
## and shows the wrong colors as of 2012/06/15
##
#framebuffer_depth=16
## framebuffer_ignore_alpha
## Set to 1 to disable alpha channel. Helps with 32bit.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable Alpha Channel (Default)
## 1 Disable Alpha Channel
##
#framebuffer_ignore_alpha=0
################################################################################
## General Video Settings
################################################################################
## display_rotate
## Rotate the display clockwise or flip the display.
## The 90 and 270 degrees rotation options require additional memory on GPU,
## so won't work with the 16M GPU split.
##
## Value Description
## -------------------------------------------------------------------------
## 0 0 degrees (Default)
## 1 90 degrees
## 2 180 degrees
## 3 270 degrees
## 0x10000 Horizontal flip
## 0x20000 Vertical flip
##
#display_rotate=0
## dispmanx_offline
## Set to "1" to enable offline compositing
##
## Default 0
##
#dispmanx_offline=0
################################################################################
## Licensed Codecs
##
## Hardware decoding of additional codecs can be enabled by purchasing a
## license that is locked to the CPU serial number of your Raspberry Pi.
##
## Up to 8 licenses per CODEC can be specified as a comma seperated list.
##
################################################################################
## decode_MPG2
## License key to allow hardware MPEG-2 decoding.
##
#decode_MPG2=0x12345678
## decode_WVC1
## License key to allow hardware VC-1 decoding.
##
#decode_WVC1=0x12345678
################################################################################
## Camera Settings
################################################################################
## start_x
## Set to "1" to enable the camera module.
##
## Enabling the camera requires gpu_mem option to be specified with a value
## of at least 128.
##
## Default 0
##
#start_x=0
## disable_camera_led
## Turn off the red camera led when recording video or taking a still
## picture.
##
## Value Description
## -------------------------------------------------------------------------
## 0 LED enabled (Default)
## 1 LED disabled
##
#disable_camera_led=1
################################################################################
## Test Settings
################################################################################
## test_mode
## Enable test sound/image during boot for manufacturing test.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disable Test Mod (Default)
## 1 Enable Test Mode
##
#test_mode=0
################################################################################
## Memory Settings
################################################################################
## disable_l2cache
## Disable arm access to GPU's L2 cache. Needs corresponding L2 disabled
## kernel.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable L2 Cache (Default)
## 1 Disable L2 cache
##
#disable_l2cache=0
## gpu_mem
## GPU memory allocation in MB for all board revisions.
##
## Default 64
##
#gpu_mem=128
## gpu_mem_256
## GPU memory allocation in MB for 256MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_256=192
## gpu_mem_512
## GPU memory allocation in MB for 512MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_512=448
## gpu_mem_1024
## GPU memory allocation in MB for 1024MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_1024=944
## disable_pvt
## Disable adjusting the refresh rate of RAM every 500ms
## (measuring RAM temparature).
##
#disable_pvt=1
################################################################################
## CMA - Dynamic Memory Split
##
## CMA enables dynamic management of the ARM and GPU memory split at runtime.
##
## The following options need to be in cmdline.txt for CMA to work:
## coherent_pool=6M smsc95xx.turbo_mode=N
##
################################################################################
## cma_lwm
## When GPU has less than cma_lwm (low water mark) memory available it
## will request some from ARM.
##
#cma_lwm=16
## cma_hwm
## When GPU has more than cma_hwm (high water mark) memory available it
## will release some to ARM.
##
#cma_hwm=32
################################################################################
## Boot Option Settings
################################################################################
## disable_commandline_tags
## Stop start.elf from filling in ATAGS (memory from 0x100) before
## launching kernel
##
#disable_commandline_tags=0
## cmdline (string)
## Command line parameters. Can be used instead of cmdline.txt file
##
#cmdline=""
## kernel (string)
## Alternative name to use when loading kernel.
##
#kernel=""
## kernel_address
## Address to load kernel.img file at
##
#kernel_address=0x00000000
## kernel_old
## Support loading old kernels
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Load kernel at address 0x00000000
##
#kernel_old=1
## ramfsfile (string)
## ramfs file to load
##
#ramfsfile=""
## ramfsaddr
## Address to load ramfs file at
##
#ramfsaddr=0x00000000
## initramfs (string address)
## ramfs file and address to load it at (it's like ramfsfile+ramfsaddr in
## one option).
##
## NOTE: this option uses different syntax than all other options - you
## should not use "=" character here.
##
#initramfs initramf.gz 0x00800000
## device_tree_address
## Address to load device_tree at
##
#device_tree_address=0x00000000
## init_uart_baud
## Initial uart baud rate.
##
## Default 115200
##
#init_uart_baud=115200
## init_uart_clock
## Initial uart clock.
##
## Default 3000000 (3MHz)
##
#init_uart_clock=3000000
## init_emmc_clock
## Initial emmc clock, increasing this can speedup your SD-card.
##
## Default 100000000 (100mhz)
##
#init_emmc_clock=100000000
## boot_delay
## Wait for a given number of seconds in start.elf before loading
## kernel.img.
##
## delay = (1000 * boot_delay) + boot_delay_ms
##
## Default 1
##
boot_delay=0
## boot_delay_ms
## Wait for a given number of milliseconds in start.elf before loading
## kernel.img.
##
## delay = (1000 * boot_delay) + boot_delay_ms
##
## Default 0
##
boot_delay_ms=0
## avoid_safe_mode
## Adding a jumper between pins 5 & 6 of P1 enables a recovery Safe Mode.
## If pins 5 & 6 are used for connecting to external devices (e.g. GPIO),
## then this setting can be used to ensure Safe Mode is not triggered.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Respect Safe Mode input (Default)
## 1 Ignore Safe Mode input
##
#avoid_safe_mode=1
## disable_splash
## Avoids the rainbow splash screen on boot.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Splash screen enabled (Default)
## 1 Splash screen disabled
##
disable_splash=1
################################################################################
## Overclocking Settings
##
## ARM, SDRAM and GPU each have their own PLLs and can have unrelated
## frequencies.
##
## The GPU core, h264, v3d and isp share a PLL, so need to have related
## frequencies.
## pll_freq = floor(2400 / (2 * core_freq)) * (2 * core_freq)
## gpu_freq = pll_freq / [even number]
##
## The effective gpu_freq is automatically rounded to nearest even integer, so
## asking for core_freq = 500 and gpu_freq = 300 will result in divisor of
## 2000/300 = 6.666 => 6 and so 333.33MHz.
##
##
## Standard Profiles:
## arm_freq core_freq sdram_freq over_voltage
## -------------------------------------------------------------------------
## None 700 250 400 0
## Modest 800 300 400 0
## Medium 900 333 450 2
## High 950 450 450 6
## Turbo 1000 500 500 6
##
################################################################################
## force_turbo
## Control the kernel "ondemand" governor. It has no effect if no overclock
## settings are specified.
## May set warrany bit.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable dynamic clocks and voltage for the ARM core, GPU core and
## SDRAM (Default).
## Overclocking of h264_freq, v3d_freq and isp_freq is ignored.
## 1 Disable dynamic clocks and voltage for the ARM core, GPU core
## and SDRAM.
## Overclocking of h264_freq, v3d_freq and isp_freq is allowed.
##
#force_turbo=0
## initial_turbo
## Enables turbo mode from boot for the given value in seconds (up to 60)
## or until cpufreq sets a frequency. Can help with sdcard corruption if
## overclocked.
##
## Default 0
##
#initial_turbo=0
## temp_limit
## Overheat protection. Sets clocks and voltages to default when the SoC
## reaches this Celsius value.
## Setting this higher than default voids warranty.
##
## Default 85
##
#temp_limit=85
## arm_freq
## Frequency of ARM in MHz.
##
## Default 700.
##
#arm_freq=700
## arm_freq_min
## Minimum frequency of ARM in MHz (used for dynamic clocking).
##
## Default 700.
##
#arm_freq_min=700
## gpu_freq
## Sets core_freq, h264_freq, isp_freq, v3d_freq together.
##
## Default 250.
##
#gpu_freq=250
## core_freq
## Frequency of GPU processor core in MHz. It has an impact on ARM
## performance since it drives L2 cache.
##
## Default 250.
##
#core_freq=250
## core_freq_min
## Minimum frequency of GPU processor core in MHz (used for dynamic
## clocking). It has an impact on ARM performance since it drives L2 cache.
##
## Default 250.
##
#core_freq_min=250
## h264_freq
## Frequency of hardware video block in MHz.
##
## Default 250.
##
#h264_freq=250
## isp_freq
## Frequency of image sensor pipeline block in MHz.
##
## Default 250.
##
#isp_freq=250
## v3d_freq
## Frequency of 3D block in MHz.
##
## Default 250.
##
#v3d_freq=250
## sdram_freq
## Frequency of SDRAM in MHz.
##
## Default 400.
##
#sdram_freq=400
## sdram_freq_min
## Minimum frequency of SDRAM in MHz (used for dynamic clocking).
##
## Default 400.
##
#sdram_freq_min=400
## avoid_pwm_pll
## Don't dedicate a pll to PWM audio. This will reduce analogue audio
## quality slightly. The spare PLL allows the core_freq to be set
## independently from the rest of the gpu allowing more control over
## overclocking.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Linked core_freq (Default)
## 1 Unlinked core_freq
##
#avoid_pwm_pll=1
################################################################################
## Voltage Settings
################################################################################
## current_limit_override
## Disables SMPS current limit protection. Can help if you are currently
## hitting a reboot failure when overclocking too high.
## May set warrany bit.
##
#current_limit_override=0x5A000020
## over_voltage
## ARM/GPU core voltage adjust.
## May set warrany bit.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V (requires force_turbo=1 or current_limit_override)
## 8 1.4 V (requires force_turbo=1 or current_limit_override)
##
#over_voltage=0
## over_voltage_min
## Minimum ARM/GPU core voltage adjust (used for dynamic clocking).
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V (requires force_turbo=1)
## 8 1.4 V (requires force_turbo=1)
##
#over_voltage_min=0
## over_voltage_sdram
## Sets over_voltage_sdram_c, over_voltage_sdram_i, over_voltage_sdram_p
## together
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram=0
## over_voltage_sdram_c
## SDRAM controller voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_c=0
## over_voltage_sdram_i
## SDRAM I/O voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_i=0
## over_voltage_sdram_p
## SDRAM phy voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_p=0
################################################################################
## USB Power
################################################################################
## max_usb_current
## When set to 1, change the output current limit (for all 4 USB
## ports combined) from 600mA to double that, 1200mA.
##
## This option is not available for Model A/B boards.
##
## Default 0.
##
#max_usb_current=0
################################################################################
## Base Device Tree Parameters
################################################################################
## audio
## Enable the onboard ALSA audio
##
## Default off.
##
#dtparam=audio=off
## i2c_arm
## Enable the ARM's i2c interface
##
## Default off.
##
#dtparam=i2c_arm=off
## i2c_vc
## Enable the i2c interface
##
## Usually reserved for the VideoCore processor
##
## Default off.
##
#dtparam=i2c_vc=off
## i2c_arm_baudrate
## Set the baudrate of the ARM's i2c interface
##
## Default 100000.
##
#dtparam=i2c_arm_baudrate=100000
## i2c_vc_baudrate
## Set the baudrate of the VideoCore i2c interface
##
## Default 100000.
##
#dtparam=i2c_vc_baudrate=100000
## i2s
## Set to "on" to enable the i2s interface
##
## Default off.
##
#dtparam=i2s=off
## spi
## Set to "on" to enable the spi interfaces
##
## Default off.
##
#dtparam=spi=off
## random
## Set to "on" to enable the hardware random
##
## Default off.
##
#dtparam=random=off
## uart0
## Set to "off" to disable uart0
##
## Default on.
##
#dtparam=uart0=on
## watchdog
## Set to "on" to enable the hardware watchdog
##
## Default off.
##
#dtparam=watchdog=off
## act_led_trigger
## Choose which activity the LED tracks.
##
## Use "heartbeat" for a nice load indicator.
##
## Default mmc.
##
#dtparam=act_led_trigger=mmc
## act_led_activelow
## Set to "on" to invert the sense of the LED
##
## Default off.
##
#dtparam=act_led_activelow=off
## act_led_gpio
## Set which GPIO to use for the activity LED
##
## In case you want to connect it to an external device
##
## Default 16 on a non-Plus board, 47 on a Plus or Pi 2.
##
#dtparam=act_led_gpio=47
## pwr_led_trigger
## Choose which activity the LED tracks.
##
## Use "heartbeat" for a nice load indicator.
##
## Not available on Model A/B boards.
##
## Default mmc.
##
#dtparam=pwr_led_trigger=mmc
## pwr_led_activelow
## Set to "on" to invert the sense of the LED
##
## Not available on Model A/B boards.
##
## Default off.
##
#dtparam=pwr_led_activelow=off
## pwr_led_gpio
## Set which GPIO to use for the PWR LED
##
## In case you want to connect it to an external device
##
## Not available on Model A/B boards.
##
## Default 35.
##
#dtparam=pwr_led_gpio=35
# Enable I2C
dtparam=i2c1=on
dtparam=i2c_arm=on
# Enable UART
enable_uart=1
# Enable VC4 Graphics
dtoverlay=vc4-kms-v3d
# Raspberry Pi PWM for LED
dtoverlay=pwm-2chan,pin=12,func=4
# Gumstix DTB setup
dtoverlay=devicetree-rpi_cm-EMPTY
dtoverlay=sdio,poll_once=off
[-- Attachment #3: config.txt --]
[-- Type: text/plain, Size: 1784 bytes --]
# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
[all]
#dtoverlay=vc4-fkms-v3d
^ permalink raw reply [flat|nested] 14+ messages in thread* Re: [yocto] Raspberry PI enabling MMC1
2020-11-17 8:08 ` [yocto] " Khem Raj
2020-11-18 0:29 ` chuck kamas
@ 2020-11-18 0:29 ` chuck kamas
2020-11-18 0:29 ` chuck kamas
` (2 subsequent siblings)
4 siblings, 0 replies; 14+ messages in thread
From: chuck kamas @ 2020-11-18 0:29 UTC (permalink / raw)
To: Khem Raj; +Cc: Yocto-mailing-list
[-- Attachment #1: Type: text/plain, Size: 2053 bytes --]
Raj,
Thanks for taking the time to respond. I thought of that too. My custom
Yocto build has the line to turn on the sdio in it:
> dtoverlay=sdio,poll_once=off
I have attached the entire file: config.txt.yocto
However, the Rasbian image does not have any mention of the dtoverlay
for the sdio. Curious. See config.txt attached.
Thanks for the help!
Chuck
On 11/17/20 12:08 AM, Khem Raj wrote:
> On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
> lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
> wrote:
>> Hi all,
>>
>>
>> I have been spinning my wheels for two days trying to discover how to
>> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
>> on the CM3 and it inits the MMC1 and its pins just fine. I can
>> read/write to my SD card from it etc. However, when I build yocto it
>> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
>> I have tried changing the device tree as described here:
>>
>> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
>>
>> That compiles and add the .dtbo to my build, but still the GPIOS are not
>> set to MMC1 mode.
>>
>>> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
>>> Pinmux settings per pin
>>> Format: pin (name): mux_owner gpio_owner hog?
>>> ....
>>>
>>> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>
>>> .....
>>>
>> I have looked at:
>>
>> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
>>
>>
>> Any ideas of where to look next to turn on the sdio would be appreciated!
>>
>>
> what does /boot/config.txt look like on raspbian and yocto built images
>
>> Chuck
>>
>>
>>
>>
>>
[-- Attachment #2: config.txt.yocto --]
[-- Type: text/plain, Size: 36441 bytes --]
dtdebug=1
################################################################################
## Raspberry Pi Configuration Settings
##
## Revision 16, 2013/06/22
##
## Details taken from the eLinux wiki
## For up-to-date information please refer to wiki page.
##
## Wiki Location : http://elinux.org/RPiconfig
##
##
## Description:
## Details of each setting are described with each section that begins with
## a double hashed comment ('##')
## It is up to the user to remove the single hashed comment ('#') from each
## option they want to enable, and to set the specific value of that option.
##
## Overclock settings will be disabled at runtime if the SoC reaches temp_limit
##
################################################################################
################################################################################
## Standard Definition Video Settings
################################################################################
## sdtv_mode
## defines the TV standard for composite output
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal NTSC (Default)
## 1 Japanese version of NTSC - no pedestal
## 2 Normal PAL
## 3 Brazilian version of PAL - 525/60 rather than 625/50, different
## subcarrier
##
#sdtv_mode=0
## sdtv_aspect
## defines the aspect ratio for composite output
##
## Value Description
## -------------------------------------------------------------------------
## 1 4:3 (Default)
## 2 14:9
## 3 16:9
##
#sdtv_aspect=1
## sdtv_disable_colourburst
## Disables colour burst on composite output. The picture will be
## monochrome, but possibly sharper
##
## Value Description
## -------------------------------------------------------------------------
## 0 Colour burst is enabled (Default)
## 1 Colour burst is disabled
##
#sdtv_disable_colourburst=1
################################################################################
## High Definition Video Settings
################################################################################
## hdmi_safe
## Use "safe mode" settings to try to boot with maximum hdmi compatibility.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Enabled (this does: hdmi_force_hotplug=1,
## hdmi_ignore_edid=0xa5000080,
## config_hdmi_boost=4, hdmi_group=2,
## hdmi_mode=4, disable_overscan=0,
## overscan_left=24, overscan_right=24,
## overscan_top=24, overscan_bottom=24)
##
#hdmi_safe=1
## hdmi_force_hotplug
## Pretends HDMI hotplug signal is asserted so it appears a HDMI display
## is attached
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Use HDMI mode even if no HDMI monitor is detected
##
#hdmi_force_hotplug=1
## hdmi_ignore_hotplug
## Pretends HDMI hotplug signal is not asserted so it appears a HDMI
## display is not attached
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Use composite mode even if HDMI monitor is detected
##
#hdmi_ignore_hotplug=1
## hdmi_drive
## chooses between HDMI and DVI modes
##
## Value Description
## -------------------------------------------------------------------------
## 1 Normal DVI mode (No sound)
## 2 Normal HDMI mode (Sound will be sent if supported and enabled)
##
#hdmi_drive=2
## hdmi_ignore_edid
## Enables the ignoring of EDID/display data
##
#hdmi_ignore_edid=0xa5000080
## hdmi_edid_file
## Read the EDID data from the edid.dat file instead of from the attached
## device
##
## Value Description
## -------------------------------------------------------------------------
## 0 Read EDID data from attached device (Default)
## 1 Read EDID data from edid.txt file
##
#hdmi_edid_file=1
## hdmi_ignore_edid_audio
## Pretends all audio formats are unsupported by display. This means ALSA
## will default to analogue.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend all audio formats are unsupported
##
#hdmi_ignore_edid_audio=1
## hdmi_force_edid_audio
## Pretends all audio formats are supported by display, allowing
## passthrough of DTS/AC3 even when not reported as supported.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend all audio formats are supported
##
#hdmi_force_edid_audio=1
## hdmi_force_edid_3d
## Pretends all CEA modes support 3D even when edid doesn't indicate
## support for them.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend 3D mode is supported
##
#hdmi_force_edid_3d=1
## avoid_edid_fuzzy_match
## Avoid fuzzy matching of modes described in edid.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use fuzzy matching (Default)
## 1 Avoid fuzzy matching
##
#avoid_edid_fuzzy_match=1
## hdmi_pixel_encoding
## Force the pixel encoding mode.
## By default it will use the mode requested from edid so shouldn't
## need changing.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 RGB limited (16-235)
## 2 RGB full ( 0-255)
## 3 YCbCr limited (16-235)
## 4 YCbCr limited ( 0-255)
##
#hdmi_pixel_encoding=1
## hdmi_group
## Defines the HDMI type
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use the preferred group reported by the edid (Default)
## 1 CEA
## 2 DMT
##
#hdmi_group=1
## hdmi_mode
## defines screen resolution in CEA or DMT format
##
## H means 16:9 variant (of a normally 4:3 mode).
## 2x means pixel doubled (i.e. higher clock rate, with each pixel repeated
## twice)
## 4x means pixel quadrupled (i.e. higher clock rate, with each pixel
## repeated four times)
## reduced blanking means fewer bytes are used for blanking within the data
## stream (i.e. lower clock rate, with fewer wasted bytes)
##
## Value hdmi_group=CEA hdmi_group=DMT
## -------------------------------------------------------------------------
## 1 VGA 640x350 85Hz
## 2 480p 60Hz 640x400 85Hz
## 3 480p 60Hz H 720x400 85Hz
## 4 720p 60Hz 640x480 60Hz
## 5 1080i 60Hz 640x480 72Hz
## 6 480i 60Hz 640x480 75Hz
## 7 480i 60Hz H 640x480 85Hz
## 8 240p 60Hz 800x600 56Hz
## 9 240p 60Hz H 800x600 60Hz
## 10 480i 60Hz 4x 800x600 72Hz
## 11 480i 60Hz 4x H 800x600 75Hz
## 12 240p 60Hz 4x 800x600 85Hz
## 13 240p 60Hz 4x H 800x600 120Hz
## 14 480p 60Hz 2x 848x480 60Hz
## 15 480p 60Hz 2x H 1024x768 43Hz DO NOT USE
## 16 1080p 60Hz 1024x768 60Hz
## 17 576p 50Hz 1024x768 70Hz
## 18 576p 50Hz H 1024x768 75Hz
## 19 720p 50Hz 1024x768 85Hz
## 20 1080i 50Hz 1024x768 120Hz
## 21 576i 50Hz 1152x864 75Hz
## 22 576i 50Hz H 1280x768 reduced blanking
## 23 288p 50Hz 1280x768 60Hz
## 24 288p 50Hz H 1280x768 75Hz
## 25 576i 50Hz 4x 1280x768 85Hz
## 26 576i 50Hz 4x H 1280x768 120Hz reduced blanking
## 27 288p 50Hz 4x 1280x800 reduced blanking
## 28 288p 50Hz 4x H 1280x800 60Hz
## 29 576p 50Hz 2x 1280x800 75Hz
## 30 576p 50Hz 2x H 1280x800 85Hz
## 31 1080p 50Hz 1280x800 120Hz reduced blanking
## 32 1080p 24Hz 1280x960 60Hz
## 33 1080p 25Hz 1280x960 85Hz
## 34 1080p 30Hz 1280x960 120Hz reduced blanking
## 35 480p 60Hz 4x 1280x1024 60Hz
## 36 480p 60Hz 4x H 1280x1024 75Hz
## 37 576p 50Hz 4x 1280x1024 85Hz
## 38 576p 50Hz 4x H 1280x1024 120Hz reduced blanking
## 39 1080i 50Hz reduced blanking 1360x768 60Hz
## 40 1080i 100Hz 1360x768 120Hz reduced blanking
## 41 720p 100Hz 1400x1050 reduced blanking
## 42 576p 100Hz 1400x1050 60Hz
## 43 576p 100Hz H 1400x1050 75Hz
## 44 576i 100Hz 1400x1050 85Hz
## 45 576i 100Hz H 1400x1050 120Hz reduced blanking
## 46 1080i 120Hz 1440x900 reduced blanking
## 47 720p 120Hz 1440x900 60Hz
## 48 480p 120Hz 1440x900 75Hz
## 49 480p 120Hz H 1440x900 85Hz
## 50 480i 120Hz 1440x900 120Hz reduced blanking
## 51 480i 120Hz H 1600x1200 60Hz
## 52 576p 200Hz 1600x1200 65Hz
## 53 576p 200Hz H 1600x1200 70Hz
## 54 576i 200Hz 1600x1200 75Hz
## 55 576i 200Hz H 1600x1200 85Hz
## 56 480p 240Hz 1600x1200 120Hz reduced blanking
## 57 480p 240Hz H 1680x1050 reduced blanking
## 58 480i 240Hz 1680x1050 60Hz
## 59 480i 240Hz H 1680x1050 75Hz
## 60 1680x1050 85Hz
## 61 1680x1050 120Hz reduced blanking
## 62 1792x1344 60Hz
## 63 1792x1344 75Hz
## 64 1792x1344 120Hz reduced blanking
## 65 1856x1392 60Hz
## 66 1856x1392 75Hz
## 67 1856x1392 120Hz reduced blanking
## 68 1920x1200 reduced blanking
## 69 1920x1200 60Hz
## 70 1920x1200 75Hz
## 71 1920x1200 85Hz
## 72 1920x1200 120Hz reduced blanking
## 73 1920x1440 60Hz
## 74 1920x1440 75Hz
## 75 1920x1440 120Hz reduced blanking
## 76 2560x1600 reduced blanking
## 77 2560x1600 60Hz
## 78 2560x1600 75Hz
## 79 2560x1600 85Hz
## 80 2560x1600 120Hz reduced blanking
## 81 1366x768 60Hz
## 82 1080p 60Hz
## 83 1600x900 reduced blanking
## 84 2048x1152 reduced blanking
## 85 720p 60Hz
## 86 1366x768 reduced blanking
##
#hdmi_mode=1
## config_hdmi_boost
## configure the signal strength of the HDMI interface.
##
## Value Description
## -------------------------------------------------------------------------
## 0 (Default)
## 1
## 2
## 3
## 4 Try if you have interference issues with HDMI
## 5
## 6
## 7 Maximum
##
#config_hdmi_boost=0
## hdmi_ignore_cec_init
## Doesn't sent initial active source message. Avoids bringing
## (CEC enabled) TV out of standby and channel switch when rebooting.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal behaviour (Default)
## 1 Doesn't sent initial active source message
##
#hdmi_ignore_cec_init=1
## hdmi_ignore_cec
## Pretends CEC is not supported at all by TV.
## No CEC functions will be supported.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal behaviour (Default)
## 1 Pretend CEC is not supported by TV
##
#hdmi_ignore_cec=1
################################################################################
## Overscan Video Settings
################################################################################
## overscan_left
## Number of pixels to skip on left
##
#overscan_left=0
## overscan_right
## Number of pixels to skip on right
##
#overscan_right=0
## overscan_top
## Number of pixels to skip on top
##
#overscan_top=0
## overscan_bottom
## Number of pixels to skip on bottom
##
#overscan_bottom=0
## disable_overscan
## Set to 1 to disable overscan
##
## Value Description
## -------------------------------------------------------------------------
## 0 Overscan Enabled (Default)
## 1 Overscan Disabled
##
disable_overscan=1
################################################################################
## Framebuffer Video Settings
################################################################################
## framebuffer_width
## Console framebuffer width in pixels. Default is display width minus
## overscan.
##
#framebuffer_width=0
## framebuffer_height
## Console framebuffer height in pixels. Default is display height minus
## overscan.
##
#framebuffer_height=0
## framebuffer_depth
## Console framebuffer depth in bits per pixel.
##
## Value Description
## -------------------------------------------------------------------------
## 8 Valid, but default RGB palette makes an unreadable screen
## 16 (Default)
## 24 Looks better but has corruption issues as of 2012/06/15
## 32 Has no corruption issues but needs framebuffer_ignore_alpha=1
## and shows the wrong colors as of 2012/06/15
##
#framebuffer_depth=16
## framebuffer_ignore_alpha
## Set to 1 to disable alpha channel. Helps with 32bit.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable Alpha Channel (Default)
## 1 Disable Alpha Channel
##
#framebuffer_ignore_alpha=0
################################################################################
## General Video Settings
################################################################################
## display_rotate
## Rotate the display clockwise or flip the display.
## The 90 and 270 degrees rotation options require additional memory on GPU,
## so won't work with the 16M GPU split.
##
## Value Description
## -------------------------------------------------------------------------
## 0 0 degrees (Default)
## 1 90 degrees
## 2 180 degrees
## 3 270 degrees
## 0x10000 Horizontal flip
## 0x20000 Vertical flip
##
#display_rotate=0
## dispmanx_offline
## Set to "1" to enable offline compositing
##
## Default 0
##
#dispmanx_offline=0
################################################################################
## Licensed Codecs
##
## Hardware decoding of additional codecs can be enabled by purchasing a
## license that is locked to the CPU serial number of your Raspberry Pi.
##
## Up to 8 licenses per CODEC can be specified as a comma seperated list.
##
################################################################################
## decode_MPG2
## License key to allow hardware MPEG-2 decoding.
##
#decode_MPG2=0x12345678
## decode_WVC1
## License key to allow hardware VC-1 decoding.
##
#decode_WVC1=0x12345678
################################################################################
## Camera Settings
################################################################################
## start_x
## Set to "1" to enable the camera module.
##
## Enabling the camera requires gpu_mem option to be specified with a value
## of at least 128.
##
## Default 0
##
#start_x=0
## disable_camera_led
## Turn off the red camera led when recording video or taking a still
## picture.
##
## Value Description
## -------------------------------------------------------------------------
## 0 LED enabled (Default)
## 1 LED disabled
##
#disable_camera_led=1
################################################################################
## Test Settings
################################################################################
## test_mode
## Enable test sound/image during boot for manufacturing test.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disable Test Mod (Default)
## 1 Enable Test Mode
##
#test_mode=0
################################################################################
## Memory Settings
################################################################################
## disable_l2cache
## Disable arm access to GPU's L2 cache. Needs corresponding L2 disabled
## kernel.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable L2 Cache (Default)
## 1 Disable L2 cache
##
#disable_l2cache=0
## gpu_mem
## GPU memory allocation in MB for all board revisions.
##
## Default 64
##
#gpu_mem=128
## gpu_mem_256
## GPU memory allocation in MB for 256MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_256=192
## gpu_mem_512
## GPU memory allocation in MB for 512MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_512=448
## gpu_mem_1024
## GPU memory allocation in MB for 1024MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_1024=944
## disable_pvt
## Disable adjusting the refresh rate of RAM every 500ms
## (measuring RAM temparature).
##
#disable_pvt=1
################################################################################
## CMA - Dynamic Memory Split
##
## CMA enables dynamic management of the ARM and GPU memory split at runtime.
##
## The following options need to be in cmdline.txt for CMA to work:
## coherent_pool=6M smsc95xx.turbo_mode=N
##
################################################################################
## cma_lwm
## When GPU has less than cma_lwm (low water mark) memory available it
## will request some from ARM.
##
#cma_lwm=16
## cma_hwm
## When GPU has more than cma_hwm (high water mark) memory available it
## will release some to ARM.
##
#cma_hwm=32
################################################################################
## Boot Option Settings
################################################################################
## disable_commandline_tags
## Stop start.elf from filling in ATAGS (memory from 0x100) before
## launching kernel
##
#disable_commandline_tags=0
## cmdline (string)
## Command line parameters. Can be used instead of cmdline.txt file
##
#cmdline=""
## kernel (string)
## Alternative name to use when loading kernel.
##
#kernel=""
## kernel_address
## Address to load kernel.img file at
##
#kernel_address=0x00000000
## kernel_old
## Support loading old kernels
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Load kernel at address 0x00000000
##
#kernel_old=1
## ramfsfile (string)
## ramfs file to load
##
#ramfsfile=""
## ramfsaddr
## Address to load ramfs file at
##
#ramfsaddr=0x00000000
## initramfs (string address)
## ramfs file and address to load it at (it's like ramfsfile+ramfsaddr in
## one option).
##
## NOTE: this option uses different syntax than all other options - you
## should not use "=" character here.
##
#initramfs initramf.gz 0x00800000
## device_tree_address
## Address to load device_tree at
##
#device_tree_address=0x00000000
## init_uart_baud
## Initial uart baud rate.
##
## Default 115200
##
#init_uart_baud=115200
## init_uart_clock
## Initial uart clock.
##
## Default 3000000 (3MHz)
##
#init_uart_clock=3000000
## init_emmc_clock
## Initial emmc clock, increasing this can speedup your SD-card.
##
## Default 100000000 (100mhz)
##
#init_emmc_clock=100000000
## boot_delay
## Wait for a given number of seconds in start.elf before loading
## kernel.img.
##
## delay = (1000 * boot_delay) + boot_delay_ms
##
## Default 1
##
boot_delay=0
## boot_delay_ms
## Wait for a given number of milliseconds in start.elf before loading
## kernel.img.
##
## delay = (1000 * boot_delay) + boot_delay_ms
##
## Default 0
##
boot_delay_ms=0
## avoid_safe_mode
## Adding a jumper between pins 5 & 6 of P1 enables a recovery Safe Mode.
## If pins 5 & 6 are used for connecting to external devices (e.g. GPIO),
## then this setting can be used to ensure Safe Mode is not triggered.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Respect Safe Mode input (Default)
## 1 Ignore Safe Mode input
##
#avoid_safe_mode=1
## disable_splash
## Avoids the rainbow splash screen on boot.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Splash screen enabled (Default)
## 1 Splash screen disabled
##
disable_splash=1
################################################################################
## Overclocking Settings
##
## ARM, SDRAM and GPU each have their own PLLs and can have unrelated
## frequencies.
##
## The GPU core, h264, v3d and isp share a PLL, so need to have related
## frequencies.
## pll_freq = floor(2400 / (2 * core_freq)) * (2 * core_freq)
## gpu_freq = pll_freq / [even number]
##
## The effective gpu_freq is automatically rounded to nearest even integer, so
## asking for core_freq = 500 and gpu_freq = 300 will result in divisor of
## 2000/300 = 6.666 => 6 and so 333.33MHz.
##
##
## Standard Profiles:
## arm_freq core_freq sdram_freq over_voltage
## -------------------------------------------------------------------------
## None 700 250 400 0
## Modest 800 300 400 0
## Medium 900 333 450 2
## High 950 450 450 6
## Turbo 1000 500 500 6
##
################################################################################
## force_turbo
## Control the kernel "ondemand" governor. It has no effect if no overclock
## settings are specified.
## May set warrany bit.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable dynamic clocks and voltage for the ARM core, GPU core and
## SDRAM (Default).
## Overclocking of h264_freq, v3d_freq and isp_freq is ignored.
## 1 Disable dynamic clocks and voltage for the ARM core, GPU core
## and SDRAM.
## Overclocking of h264_freq, v3d_freq and isp_freq is allowed.
##
#force_turbo=0
## initial_turbo
## Enables turbo mode from boot for the given value in seconds (up to 60)
## or until cpufreq sets a frequency. Can help with sdcard corruption if
## overclocked.
##
## Default 0
##
#initial_turbo=0
## temp_limit
## Overheat protection. Sets clocks and voltages to default when the SoC
## reaches this Celsius value.
## Setting this higher than default voids warranty.
##
## Default 85
##
#temp_limit=85
## arm_freq
## Frequency of ARM in MHz.
##
## Default 700.
##
#arm_freq=700
## arm_freq_min
## Minimum frequency of ARM in MHz (used for dynamic clocking).
##
## Default 700.
##
#arm_freq_min=700
## gpu_freq
## Sets core_freq, h264_freq, isp_freq, v3d_freq together.
##
## Default 250.
##
#gpu_freq=250
## core_freq
## Frequency of GPU processor core in MHz. It has an impact on ARM
## performance since it drives L2 cache.
##
## Default 250.
##
#core_freq=250
## core_freq_min
## Minimum frequency of GPU processor core in MHz (used for dynamic
## clocking). It has an impact on ARM performance since it drives L2 cache.
##
## Default 250.
##
#core_freq_min=250
## h264_freq
## Frequency of hardware video block in MHz.
##
## Default 250.
##
#h264_freq=250
## isp_freq
## Frequency of image sensor pipeline block in MHz.
##
## Default 250.
##
#isp_freq=250
## v3d_freq
## Frequency of 3D block in MHz.
##
## Default 250.
##
#v3d_freq=250
## sdram_freq
## Frequency of SDRAM in MHz.
##
## Default 400.
##
#sdram_freq=400
## sdram_freq_min
## Minimum frequency of SDRAM in MHz (used for dynamic clocking).
##
## Default 400.
##
#sdram_freq_min=400
## avoid_pwm_pll
## Don't dedicate a pll to PWM audio. This will reduce analogue audio
## quality slightly. The spare PLL allows the core_freq to be set
## independently from the rest of the gpu allowing more control over
## overclocking.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Linked core_freq (Default)
## 1 Unlinked core_freq
##
#avoid_pwm_pll=1
################################################################################
## Voltage Settings
################################################################################
## current_limit_override
## Disables SMPS current limit protection. Can help if you are currently
## hitting a reboot failure when overclocking too high.
## May set warrany bit.
##
#current_limit_override=0x5A000020
## over_voltage
## ARM/GPU core voltage adjust.
## May set warrany bit.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V (requires force_turbo=1 or current_limit_override)
## 8 1.4 V (requires force_turbo=1 or current_limit_override)
##
#over_voltage=0
## over_voltage_min
## Minimum ARM/GPU core voltage adjust (used for dynamic clocking).
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V (requires force_turbo=1)
## 8 1.4 V (requires force_turbo=1)
##
#over_voltage_min=0
## over_voltage_sdram
## Sets over_voltage_sdram_c, over_voltage_sdram_i, over_voltage_sdram_p
## together
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram=0
## over_voltage_sdram_c
## SDRAM controller voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_c=0
## over_voltage_sdram_i
## SDRAM I/O voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_i=0
## over_voltage_sdram_p
## SDRAM phy voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_p=0
################################################################################
## USB Power
################################################################################
## max_usb_current
## When set to 1, change the output current limit (for all 4 USB
## ports combined) from 600mA to double that, 1200mA.
##
## This option is not available for Model A/B boards.
##
## Default 0.
##
#max_usb_current=0
################################################################################
## Base Device Tree Parameters
################################################################################
## audio
## Enable the onboard ALSA audio
##
## Default off.
##
#dtparam=audio=off
## i2c_arm
## Enable the ARM's i2c interface
##
## Default off.
##
#dtparam=i2c_arm=off
## i2c_vc
## Enable the i2c interface
##
## Usually reserved for the VideoCore processor
##
## Default off.
##
#dtparam=i2c_vc=off
## i2c_arm_baudrate
## Set the baudrate of the ARM's i2c interface
##
## Default 100000.
##
#dtparam=i2c_arm_baudrate=100000
## i2c_vc_baudrate
## Set the baudrate of the VideoCore i2c interface
##
## Default 100000.
##
#dtparam=i2c_vc_baudrate=100000
## i2s
## Set to "on" to enable the i2s interface
##
## Default off.
##
#dtparam=i2s=off
## spi
## Set to "on" to enable the spi interfaces
##
## Default off.
##
#dtparam=spi=off
## random
## Set to "on" to enable the hardware random
##
## Default off.
##
#dtparam=random=off
## uart0
## Set to "off" to disable uart0
##
## Default on.
##
#dtparam=uart0=on
## watchdog
## Set to "on" to enable the hardware watchdog
##
## Default off.
##
#dtparam=watchdog=off
## act_led_trigger
## Choose which activity the LED tracks.
##
## Use "heartbeat" for a nice load indicator.
##
## Default mmc.
##
#dtparam=act_led_trigger=mmc
## act_led_activelow
## Set to "on" to invert the sense of the LED
##
## Default off.
##
#dtparam=act_led_activelow=off
## act_led_gpio
## Set which GPIO to use for the activity LED
##
## In case you want to connect it to an external device
##
## Default 16 on a non-Plus board, 47 on a Plus or Pi 2.
##
#dtparam=act_led_gpio=47
## pwr_led_trigger
## Choose which activity the LED tracks.
##
## Use "heartbeat" for a nice load indicator.
##
## Not available on Model A/B boards.
##
## Default mmc.
##
#dtparam=pwr_led_trigger=mmc
## pwr_led_activelow
## Set to "on" to invert the sense of the LED
##
## Not available on Model A/B boards.
##
## Default off.
##
#dtparam=pwr_led_activelow=off
## pwr_led_gpio
## Set which GPIO to use for the PWR LED
##
## In case you want to connect it to an external device
##
## Not available on Model A/B boards.
##
## Default 35.
##
#dtparam=pwr_led_gpio=35
# Enable I2C
dtparam=i2c1=on
dtparam=i2c_arm=on
# Enable UART
enable_uart=1
# Enable VC4 Graphics
dtoverlay=vc4-kms-v3d
# Raspberry Pi PWM for LED
dtoverlay=pwm-2chan,pin=12,func=4
# Gumstix DTB setup
dtoverlay=devicetree-rpi_cm-EMPTY
dtoverlay=sdio,poll_once=off
[-- Attachment #3: config.txt --]
[-- Type: text/plain, Size: 1784 bytes --]
# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
[all]
#dtoverlay=vc4-fkms-v3d
^ permalink raw reply [flat|nested] 14+ messages in thread* Re: [yocto] Raspberry PI enabling MMC1
2020-11-17 8:08 ` [yocto] " Khem Raj
2020-11-18 0:29 ` chuck kamas
2020-11-18 0:29 ` chuck kamas
@ 2020-11-18 0:29 ` chuck kamas
2020-11-18 0:29 ` chuck kamas
[not found] ` <16488BC657DA2093.23836@lists.yoctoproject.org>
4 siblings, 0 replies; 14+ messages in thread
From: chuck kamas @ 2020-11-18 0:29 UTC (permalink / raw)
To: Khem Raj; +Cc: Yocto-mailing-list
[-- Attachment #1: Type: text/plain, Size: 2053 bytes --]
Raj,
Thanks for taking the time to respond. I thought of that too. My custom
Yocto build has the line to turn on the sdio in it:
> dtoverlay=sdio,poll_once=off
I have attached the entire file: config.txt.yocto
However, the Rasbian image does not have any mention of the dtoverlay
for the sdio. Curious. See config.txt attached.
Thanks for the help!
Chuck
On 11/17/20 12:08 AM, Khem Raj wrote:
> On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
> lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
> wrote:
>> Hi all,
>>
>>
>> I have been spinning my wheels for two days trying to discover how to
>> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
>> on the CM3 and it inits the MMC1 and its pins just fine. I can
>> read/write to my SD card from it etc. However, when I build yocto it
>> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
>> I have tried changing the device tree as described here:
>>
>> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
>>
>> That compiles and add the .dtbo to my build, but still the GPIOS are not
>> set to MMC1 mode.
>>
>>> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
>>> Pinmux settings per pin
>>> Format: pin (name): mux_owner gpio_owner hog?
>>> ....
>>>
>>> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>
>>> .....
>>>
>> I have looked at:
>>
>> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
>>
>>
>> Any ideas of where to look next to turn on the sdio would be appreciated!
>>
>>
> what does /boot/config.txt look like on raspbian and yocto built images
>
>> Chuck
>>
>>
>>
>>
>>
[-- Attachment #2: config.txt.yocto --]
[-- Type: text/plain, Size: 36441 bytes --]
dtdebug=1
################################################################################
## Raspberry Pi Configuration Settings
##
## Revision 16, 2013/06/22
##
## Details taken from the eLinux wiki
## For up-to-date information please refer to wiki page.
##
## Wiki Location : http://elinux.org/RPiconfig
##
##
## Description:
## Details of each setting are described with each section that begins with
## a double hashed comment ('##')
## It is up to the user to remove the single hashed comment ('#') from each
## option they want to enable, and to set the specific value of that option.
##
## Overclock settings will be disabled at runtime if the SoC reaches temp_limit
##
################################################################################
################################################################################
## Standard Definition Video Settings
################################################################################
## sdtv_mode
## defines the TV standard for composite output
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal NTSC (Default)
## 1 Japanese version of NTSC - no pedestal
## 2 Normal PAL
## 3 Brazilian version of PAL - 525/60 rather than 625/50, different
## subcarrier
##
#sdtv_mode=0
## sdtv_aspect
## defines the aspect ratio for composite output
##
## Value Description
## -------------------------------------------------------------------------
## 1 4:3 (Default)
## 2 14:9
## 3 16:9
##
#sdtv_aspect=1
## sdtv_disable_colourburst
## Disables colour burst on composite output. The picture will be
## monochrome, but possibly sharper
##
## Value Description
## -------------------------------------------------------------------------
## 0 Colour burst is enabled (Default)
## 1 Colour burst is disabled
##
#sdtv_disable_colourburst=1
################################################################################
## High Definition Video Settings
################################################################################
## hdmi_safe
## Use "safe mode" settings to try to boot with maximum hdmi compatibility.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Enabled (this does: hdmi_force_hotplug=1,
## hdmi_ignore_edid=0xa5000080,
## config_hdmi_boost=4, hdmi_group=2,
## hdmi_mode=4, disable_overscan=0,
## overscan_left=24, overscan_right=24,
## overscan_top=24, overscan_bottom=24)
##
#hdmi_safe=1
## hdmi_force_hotplug
## Pretends HDMI hotplug signal is asserted so it appears a HDMI display
## is attached
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Use HDMI mode even if no HDMI monitor is detected
##
#hdmi_force_hotplug=1
## hdmi_ignore_hotplug
## Pretends HDMI hotplug signal is not asserted so it appears a HDMI
## display is not attached
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Use composite mode even if HDMI monitor is detected
##
#hdmi_ignore_hotplug=1
## hdmi_drive
## chooses between HDMI and DVI modes
##
## Value Description
## -------------------------------------------------------------------------
## 1 Normal DVI mode (No sound)
## 2 Normal HDMI mode (Sound will be sent if supported and enabled)
##
#hdmi_drive=2
## hdmi_ignore_edid
## Enables the ignoring of EDID/display data
##
#hdmi_ignore_edid=0xa5000080
## hdmi_edid_file
## Read the EDID data from the edid.dat file instead of from the attached
## device
##
## Value Description
## -------------------------------------------------------------------------
## 0 Read EDID data from attached device (Default)
## 1 Read EDID data from edid.txt file
##
#hdmi_edid_file=1
## hdmi_ignore_edid_audio
## Pretends all audio formats are unsupported by display. This means ALSA
## will default to analogue.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend all audio formats are unsupported
##
#hdmi_ignore_edid_audio=1
## hdmi_force_edid_audio
## Pretends all audio formats are supported by display, allowing
## passthrough of DTS/AC3 even when not reported as supported.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend all audio formats are supported
##
#hdmi_force_edid_audio=1
## hdmi_force_edid_3d
## Pretends all CEA modes support 3D even when edid doesn't indicate
## support for them.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend 3D mode is supported
##
#hdmi_force_edid_3d=1
## avoid_edid_fuzzy_match
## Avoid fuzzy matching of modes described in edid.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use fuzzy matching (Default)
## 1 Avoid fuzzy matching
##
#avoid_edid_fuzzy_match=1
## hdmi_pixel_encoding
## Force the pixel encoding mode.
## By default it will use the mode requested from edid so shouldn't
## need changing.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 RGB limited (16-235)
## 2 RGB full ( 0-255)
## 3 YCbCr limited (16-235)
## 4 YCbCr limited ( 0-255)
##
#hdmi_pixel_encoding=1
## hdmi_group
## Defines the HDMI type
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use the preferred group reported by the edid (Default)
## 1 CEA
## 2 DMT
##
#hdmi_group=1
## hdmi_mode
## defines screen resolution in CEA or DMT format
##
## H means 16:9 variant (of a normally 4:3 mode).
## 2x means pixel doubled (i.e. higher clock rate, with each pixel repeated
## twice)
## 4x means pixel quadrupled (i.e. higher clock rate, with each pixel
## repeated four times)
## reduced blanking means fewer bytes are used for blanking within the data
## stream (i.e. lower clock rate, with fewer wasted bytes)
##
## Value hdmi_group=CEA hdmi_group=DMT
## -------------------------------------------------------------------------
## 1 VGA 640x350 85Hz
## 2 480p 60Hz 640x400 85Hz
## 3 480p 60Hz H 720x400 85Hz
## 4 720p 60Hz 640x480 60Hz
## 5 1080i 60Hz 640x480 72Hz
## 6 480i 60Hz 640x480 75Hz
## 7 480i 60Hz H 640x480 85Hz
## 8 240p 60Hz 800x600 56Hz
## 9 240p 60Hz H 800x600 60Hz
## 10 480i 60Hz 4x 800x600 72Hz
## 11 480i 60Hz 4x H 800x600 75Hz
## 12 240p 60Hz 4x 800x600 85Hz
## 13 240p 60Hz 4x H 800x600 120Hz
## 14 480p 60Hz 2x 848x480 60Hz
## 15 480p 60Hz 2x H 1024x768 43Hz DO NOT USE
## 16 1080p 60Hz 1024x768 60Hz
## 17 576p 50Hz 1024x768 70Hz
## 18 576p 50Hz H 1024x768 75Hz
## 19 720p 50Hz 1024x768 85Hz
## 20 1080i 50Hz 1024x768 120Hz
## 21 576i 50Hz 1152x864 75Hz
## 22 576i 50Hz H 1280x768 reduced blanking
## 23 288p 50Hz 1280x768 60Hz
## 24 288p 50Hz H 1280x768 75Hz
## 25 576i 50Hz 4x 1280x768 85Hz
## 26 576i 50Hz 4x H 1280x768 120Hz reduced blanking
## 27 288p 50Hz 4x 1280x800 reduced blanking
## 28 288p 50Hz 4x H 1280x800 60Hz
## 29 576p 50Hz 2x 1280x800 75Hz
## 30 576p 50Hz 2x H 1280x800 85Hz
## 31 1080p 50Hz 1280x800 120Hz reduced blanking
## 32 1080p 24Hz 1280x960 60Hz
## 33 1080p 25Hz 1280x960 85Hz
## 34 1080p 30Hz 1280x960 120Hz reduced blanking
## 35 480p 60Hz 4x 1280x1024 60Hz
## 36 480p 60Hz 4x H 1280x1024 75Hz
## 37 576p 50Hz 4x 1280x1024 85Hz
## 38 576p 50Hz 4x H 1280x1024 120Hz reduced blanking
## 39 1080i 50Hz reduced blanking 1360x768 60Hz
## 40 1080i 100Hz 1360x768 120Hz reduced blanking
## 41 720p 100Hz 1400x1050 reduced blanking
## 42 576p 100Hz 1400x1050 60Hz
## 43 576p 100Hz H 1400x1050 75Hz
## 44 576i 100Hz 1400x1050 85Hz
## 45 576i 100Hz H 1400x1050 120Hz reduced blanking
## 46 1080i 120Hz 1440x900 reduced blanking
## 47 720p 120Hz 1440x900 60Hz
## 48 480p 120Hz 1440x900 75Hz
## 49 480p 120Hz H 1440x900 85Hz
## 50 480i 120Hz 1440x900 120Hz reduced blanking
## 51 480i 120Hz H 1600x1200 60Hz
## 52 576p 200Hz 1600x1200 65Hz
## 53 576p 200Hz H 1600x1200 70Hz
## 54 576i 200Hz 1600x1200 75Hz
## 55 576i 200Hz H 1600x1200 85Hz
## 56 480p 240Hz 1600x1200 120Hz reduced blanking
## 57 480p 240Hz H 1680x1050 reduced blanking
## 58 480i 240Hz 1680x1050 60Hz
## 59 480i 240Hz H 1680x1050 75Hz
## 60 1680x1050 85Hz
## 61 1680x1050 120Hz reduced blanking
## 62 1792x1344 60Hz
## 63 1792x1344 75Hz
## 64 1792x1344 120Hz reduced blanking
## 65 1856x1392 60Hz
## 66 1856x1392 75Hz
## 67 1856x1392 120Hz reduced blanking
## 68 1920x1200 reduced blanking
## 69 1920x1200 60Hz
## 70 1920x1200 75Hz
## 71 1920x1200 85Hz
## 72 1920x1200 120Hz reduced blanking
## 73 1920x1440 60Hz
## 74 1920x1440 75Hz
## 75 1920x1440 120Hz reduced blanking
## 76 2560x1600 reduced blanking
## 77 2560x1600 60Hz
## 78 2560x1600 75Hz
## 79 2560x1600 85Hz
## 80 2560x1600 120Hz reduced blanking
## 81 1366x768 60Hz
## 82 1080p 60Hz
## 83 1600x900 reduced blanking
## 84 2048x1152 reduced blanking
## 85 720p 60Hz
## 86 1366x768 reduced blanking
##
#hdmi_mode=1
## config_hdmi_boost
## configure the signal strength of the HDMI interface.
##
## Value Description
## -------------------------------------------------------------------------
## 0 (Default)
## 1
## 2
## 3
## 4 Try if you have interference issues with HDMI
## 5
## 6
## 7 Maximum
##
#config_hdmi_boost=0
## hdmi_ignore_cec_init
## Doesn't sent initial active source message. Avoids bringing
## (CEC enabled) TV out of standby and channel switch when rebooting.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal behaviour (Default)
## 1 Doesn't sent initial active source message
##
#hdmi_ignore_cec_init=1
## hdmi_ignore_cec
## Pretends CEC is not supported at all by TV.
## No CEC functions will be supported.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal behaviour (Default)
## 1 Pretend CEC is not supported by TV
##
#hdmi_ignore_cec=1
################################################################################
## Overscan Video Settings
################################################################################
## overscan_left
## Number of pixels to skip on left
##
#overscan_left=0
## overscan_right
## Number of pixels to skip on right
##
#overscan_right=0
## overscan_top
## Number of pixels to skip on top
##
#overscan_top=0
## overscan_bottom
## Number of pixels to skip on bottom
##
#overscan_bottom=0
## disable_overscan
## Set to 1 to disable overscan
##
## Value Description
## -------------------------------------------------------------------------
## 0 Overscan Enabled (Default)
## 1 Overscan Disabled
##
disable_overscan=1
################################################################################
## Framebuffer Video Settings
################################################################################
## framebuffer_width
## Console framebuffer width in pixels. Default is display width minus
## overscan.
##
#framebuffer_width=0
## framebuffer_height
## Console framebuffer height in pixels. Default is display height minus
## overscan.
##
#framebuffer_height=0
## framebuffer_depth
## Console framebuffer depth in bits per pixel.
##
## Value Description
## -------------------------------------------------------------------------
## 8 Valid, but default RGB palette makes an unreadable screen
## 16 (Default)
## 24 Looks better but has corruption issues as of 2012/06/15
## 32 Has no corruption issues but needs framebuffer_ignore_alpha=1
## and shows the wrong colors as of 2012/06/15
##
#framebuffer_depth=16
## framebuffer_ignore_alpha
## Set to 1 to disable alpha channel. Helps with 32bit.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable Alpha Channel (Default)
## 1 Disable Alpha Channel
##
#framebuffer_ignore_alpha=0
################################################################################
## General Video Settings
################################################################################
## display_rotate
## Rotate the display clockwise or flip the display.
## The 90 and 270 degrees rotation options require additional memory on GPU,
## so won't work with the 16M GPU split.
##
## Value Description
## -------------------------------------------------------------------------
## 0 0 degrees (Default)
## 1 90 degrees
## 2 180 degrees
## 3 270 degrees
## 0x10000 Horizontal flip
## 0x20000 Vertical flip
##
#display_rotate=0
## dispmanx_offline
## Set to "1" to enable offline compositing
##
## Default 0
##
#dispmanx_offline=0
################################################################################
## Licensed Codecs
##
## Hardware decoding of additional codecs can be enabled by purchasing a
## license that is locked to the CPU serial number of your Raspberry Pi.
##
## Up to 8 licenses per CODEC can be specified as a comma seperated list.
##
################################################################################
## decode_MPG2
## License key to allow hardware MPEG-2 decoding.
##
#decode_MPG2=0x12345678
## decode_WVC1
## License key to allow hardware VC-1 decoding.
##
#decode_WVC1=0x12345678
################################################################################
## Camera Settings
################################################################################
## start_x
## Set to "1" to enable the camera module.
##
## Enabling the camera requires gpu_mem option to be specified with a value
## of at least 128.
##
## Default 0
##
#start_x=0
## disable_camera_led
## Turn off the red camera led when recording video or taking a still
## picture.
##
## Value Description
## -------------------------------------------------------------------------
## 0 LED enabled (Default)
## 1 LED disabled
##
#disable_camera_led=1
################################################################################
## Test Settings
################################################################################
## test_mode
## Enable test sound/image during boot for manufacturing test.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disable Test Mod (Default)
## 1 Enable Test Mode
##
#test_mode=0
################################################################################
## Memory Settings
################################################################################
## disable_l2cache
## Disable arm access to GPU's L2 cache. Needs corresponding L2 disabled
## kernel.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable L2 Cache (Default)
## 1 Disable L2 cache
##
#disable_l2cache=0
## gpu_mem
## GPU memory allocation in MB for all board revisions.
##
## Default 64
##
#gpu_mem=128
## gpu_mem_256
## GPU memory allocation in MB for 256MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_256=192
## gpu_mem_512
## GPU memory allocation in MB for 512MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_512=448
## gpu_mem_1024
## GPU memory allocation in MB for 1024MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_1024=944
## disable_pvt
## Disable adjusting the refresh rate of RAM every 500ms
## (measuring RAM temparature).
##
#disable_pvt=1
################################################################################
## CMA - Dynamic Memory Split
##
## CMA enables dynamic management of the ARM and GPU memory split at runtime.
##
## The following options need to be in cmdline.txt for CMA to work:
## coherent_pool=6M smsc95xx.turbo_mode=N
##
################################################################################
## cma_lwm
## When GPU has less than cma_lwm (low water mark) memory available it
## will request some from ARM.
##
#cma_lwm=16
## cma_hwm
## When GPU has more than cma_hwm (high water mark) memory available it
## will release some to ARM.
##
#cma_hwm=32
################################################################################
## Boot Option Settings
################################################################################
## disable_commandline_tags
## Stop start.elf from filling in ATAGS (memory from 0x100) before
## launching kernel
##
#disable_commandline_tags=0
## cmdline (string)
## Command line parameters. Can be used instead of cmdline.txt file
##
#cmdline=""
## kernel (string)
## Alternative name to use when loading kernel.
##
#kernel=""
## kernel_address
## Address to load kernel.img file at
##
#kernel_address=0x00000000
## kernel_old
## Support loading old kernels
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Load kernel at address 0x00000000
##
#kernel_old=1
## ramfsfile (string)
## ramfs file to load
##
#ramfsfile=""
## ramfsaddr
## Address to load ramfs file at
##
#ramfsaddr=0x00000000
## initramfs (string address)
## ramfs file and address to load it at (it's like ramfsfile+ramfsaddr in
## one option).
##
## NOTE: this option uses different syntax than all other options - you
## should not use "=" character here.
##
#initramfs initramf.gz 0x00800000
## device_tree_address
## Address to load device_tree at
##
#device_tree_address=0x00000000
## init_uart_baud
## Initial uart baud rate.
##
## Default 115200
##
#init_uart_baud=115200
## init_uart_clock
## Initial uart clock.
##
## Default 3000000 (3MHz)
##
#init_uart_clock=3000000
## init_emmc_clock
## Initial emmc clock, increasing this can speedup your SD-card.
##
## Default 100000000 (100mhz)
##
#init_emmc_clock=100000000
## boot_delay
## Wait for a given number of seconds in start.elf before loading
## kernel.img.
##
## delay = (1000 * boot_delay) + boot_delay_ms
##
## Default 1
##
boot_delay=0
## boot_delay_ms
## Wait for a given number of milliseconds in start.elf before loading
## kernel.img.
##
## delay = (1000 * boot_delay) + boot_delay_ms
##
## Default 0
##
boot_delay_ms=0
## avoid_safe_mode
## Adding a jumper between pins 5 & 6 of P1 enables a recovery Safe Mode.
## If pins 5 & 6 are used for connecting to external devices (e.g. GPIO),
## then this setting can be used to ensure Safe Mode is not triggered.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Respect Safe Mode input (Default)
## 1 Ignore Safe Mode input
##
#avoid_safe_mode=1
## disable_splash
## Avoids the rainbow splash screen on boot.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Splash screen enabled (Default)
## 1 Splash screen disabled
##
disable_splash=1
################################################################################
## Overclocking Settings
##
## ARM, SDRAM and GPU each have their own PLLs and can have unrelated
## frequencies.
##
## The GPU core, h264, v3d and isp share a PLL, so need to have related
## frequencies.
## pll_freq = floor(2400 / (2 * core_freq)) * (2 * core_freq)
## gpu_freq = pll_freq / [even number]
##
## The effective gpu_freq is automatically rounded to nearest even integer, so
## asking for core_freq = 500 and gpu_freq = 300 will result in divisor of
## 2000/300 = 6.666 => 6 and so 333.33MHz.
##
##
## Standard Profiles:
## arm_freq core_freq sdram_freq over_voltage
## -------------------------------------------------------------------------
## None 700 250 400 0
## Modest 800 300 400 0
## Medium 900 333 450 2
## High 950 450 450 6
## Turbo 1000 500 500 6
##
################################################################################
## force_turbo
## Control the kernel "ondemand" governor. It has no effect if no overclock
## settings are specified.
## May set warrany bit.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable dynamic clocks and voltage for the ARM core, GPU core and
## SDRAM (Default).
## Overclocking of h264_freq, v3d_freq and isp_freq is ignored.
## 1 Disable dynamic clocks and voltage for the ARM core, GPU core
## and SDRAM.
## Overclocking of h264_freq, v3d_freq and isp_freq is allowed.
##
#force_turbo=0
## initial_turbo
## Enables turbo mode from boot for the given value in seconds (up to 60)
## or until cpufreq sets a frequency. Can help with sdcard corruption if
## overclocked.
##
## Default 0
##
#initial_turbo=0
## temp_limit
## Overheat protection. Sets clocks and voltages to default when the SoC
## reaches this Celsius value.
## Setting this higher than default voids warranty.
##
## Default 85
##
#temp_limit=85
## arm_freq
## Frequency of ARM in MHz.
##
## Default 700.
##
#arm_freq=700
## arm_freq_min
## Minimum frequency of ARM in MHz (used for dynamic clocking).
##
## Default 700.
##
#arm_freq_min=700
## gpu_freq
## Sets core_freq, h264_freq, isp_freq, v3d_freq together.
##
## Default 250.
##
#gpu_freq=250
## core_freq
## Frequency of GPU processor core in MHz. It has an impact on ARM
## performance since it drives L2 cache.
##
## Default 250.
##
#core_freq=250
## core_freq_min
## Minimum frequency of GPU processor core in MHz (used for dynamic
## clocking). It has an impact on ARM performance since it drives L2 cache.
##
## Default 250.
##
#core_freq_min=250
## h264_freq
## Frequency of hardware video block in MHz.
##
## Default 250.
##
#h264_freq=250
## isp_freq
## Frequency of image sensor pipeline block in MHz.
##
## Default 250.
##
#isp_freq=250
## v3d_freq
## Frequency of 3D block in MHz.
##
## Default 250.
##
#v3d_freq=250
## sdram_freq
## Frequency of SDRAM in MHz.
##
## Default 400.
##
#sdram_freq=400
## sdram_freq_min
## Minimum frequency of SDRAM in MHz (used for dynamic clocking).
##
## Default 400.
##
#sdram_freq_min=400
## avoid_pwm_pll
## Don't dedicate a pll to PWM audio. This will reduce analogue audio
## quality slightly. The spare PLL allows the core_freq to be set
## independently from the rest of the gpu allowing more control over
## overclocking.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Linked core_freq (Default)
## 1 Unlinked core_freq
##
#avoid_pwm_pll=1
################################################################################
## Voltage Settings
################################################################################
## current_limit_override
## Disables SMPS current limit protection. Can help if you are currently
## hitting a reboot failure when overclocking too high.
## May set warrany bit.
##
#current_limit_override=0x5A000020
## over_voltage
## ARM/GPU core voltage adjust.
## May set warrany bit.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V (requires force_turbo=1 or current_limit_override)
## 8 1.4 V (requires force_turbo=1 or current_limit_override)
##
#over_voltage=0
## over_voltage_min
## Minimum ARM/GPU core voltage adjust (used for dynamic clocking).
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V (requires force_turbo=1)
## 8 1.4 V (requires force_turbo=1)
##
#over_voltage_min=0
## over_voltage_sdram
## Sets over_voltage_sdram_c, over_voltage_sdram_i, over_voltage_sdram_p
## together
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram=0
## over_voltage_sdram_c
## SDRAM controller voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_c=0
## over_voltage_sdram_i
## SDRAM I/O voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_i=0
## over_voltage_sdram_p
## SDRAM phy voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_p=0
################################################################################
## USB Power
################################################################################
## max_usb_current
## When set to 1, change the output current limit (for all 4 USB
## ports combined) from 600mA to double that, 1200mA.
##
## This option is not available for Model A/B boards.
##
## Default 0.
##
#max_usb_current=0
################################################################################
## Base Device Tree Parameters
################################################################################
## audio
## Enable the onboard ALSA audio
##
## Default off.
##
#dtparam=audio=off
## i2c_arm
## Enable the ARM's i2c interface
##
## Default off.
##
#dtparam=i2c_arm=off
## i2c_vc
## Enable the i2c interface
##
## Usually reserved for the VideoCore processor
##
## Default off.
##
#dtparam=i2c_vc=off
## i2c_arm_baudrate
## Set the baudrate of the ARM's i2c interface
##
## Default 100000.
##
#dtparam=i2c_arm_baudrate=100000
## i2c_vc_baudrate
## Set the baudrate of the VideoCore i2c interface
##
## Default 100000.
##
#dtparam=i2c_vc_baudrate=100000
## i2s
## Set to "on" to enable the i2s interface
##
## Default off.
##
#dtparam=i2s=off
## spi
## Set to "on" to enable the spi interfaces
##
## Default off.
##
#dtparam=spi=off
## random
## Set to "on" to enable the hardware random
##
## Default off.
##
#dtparam=random=off
## uart0
## Set to "off" to disable uart0
##
## Default on.
##
#dtparam=uart0=on
## watchdog
## Set to "on" to enable the hardware watchdog
##
## Default off.
##
#dtparam=watchdog=off
## act_led_trigger
## Choose which activity the LED tracks.
##
## Use "heartbeat" for a nice load indicator.
##
## Default mmc.
##
#dtparam=act_led_trigger=mmc
## act_led_activelow
## Set to "on" to invert the sense of the LED
##
## Default off.
##
#dtparam=act_led_activelow=off
## act_led_gpio
## Set which GPIO to use for the activity LED
##
## In case you want to connect it to an external device
##
## Default 16 on a non-Plus board, 47 on a Plus or Pi 2.
##
#dtparam=act_led_gpio=47
## pwr_led_trigger
## Choose which activity the LED tracks.
##
## Use "heartbeat" for a nice load indicator.
##
## Not available on Model A/B boards.
##
## Default mmc.
##
#dtparam=pwr_led_trigger=mmc
## pwr_led_activelow
## Set to "on" to invert the sense of the LED
##
## Not available on Model A/B boards.
##
## Default off.
##
#dtparam=pwr_led_activelow=off
## pwr_led_gpio
## Set which GPIO to use for the PWR LED
##
## In case you want to connect it to an external device
##
## Not available on Model A/B boards.
##
## Default 35.
##
#dtparam=pwr_led_gpio=35
# Enable I2C
dtparam=i2c1=on
dtparam=i2c_arm=on
# Enable UART
enable_uart=1
# Enable VC4 Graphics
dtoverlay=vc4-kms-v3d
# Raspberry Pi PWM for LED
dtoverlay=pwm-2chan,pin=12,func=4
# Gumstix DTB setup
dtoverlay=devicetree-rpi_cm-EMPTY
dtoverlay=sdio,poll_once=off
[-- Attachment #3: config.txt --]
[-- Type: text/plain, Size: 1784 bytes --]
# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
[all]
#dtoverlay=vc4-fkms-v3d
^ permalink raw reply [flat|nested] 14+ messages in thread* Re: [yocto] Raspberry PI enabling MMC1
2020-11-17 8:08 ` [yocto] " Khem Raj
` (2 preceding siblings ...)
2020-11-18 0:29 ` chuck kamas
@ 2020-11-18 0:29 ` chuck kamas
2020-11-20 17:52 ` Khem Raj
[not found] ` <16488BC657DA2093.23836@lists.yoctoproject.org>
4 siblings, 1 reply; 14+ messages in thread
From: chuck kamas @ 2020-11-18 0:29 UTC (permalink / raw)
To: Khem Raj; +Cc: Yocto-mailing-list
[-- Attachment #1: Type: text/plain, Size: 2047 bytes --]
Raj,
Thanks for taking the time to respond. I thought of that too. My custom
Yocto build has the line to turn on the sdio in it:
> dtoverlay=sdio,poll_once=off
I have attached the entire file: config.txt.yocto
However, the Rasbian image does not have any mention of the dtoverlay
for the sdio. Curious. See config.txt attached.
Thanks for the help!
Chuck
On 11/17/20 12:08 AM, Khem Raj wrote:
> On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
> lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
> wrote:
>> Hi all,
>>
>>
>> I have been spinning my wheels for two days trying to discover how to
>> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
>> on the CM3 and it inits the MMC1 and its pins just fine. I can
>> read/write to my SD card from it etc. However, when I build yocto it
>> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
>> I have tried changing the device tree as described here:
>>
>> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
>>
>> That compiles and add the .dtbo to my build, but still the GPIOS are not
>> set to MMC1 mode.
>>
>>> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
>>> Pinmux settings per pin
>>> Format: pin (name): mux_owner gpio_owner hog?
>>> ....
>>>
>>> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>
>>> .....
>>>
>> I have looked at:
>>
>> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
>>
>>
>> Any ideas of where to look next to turn on the sdio would be appreciated!
>>
>>
> what does /boot/config.txt look like on raspbian and yocto built images
>
>> Chuck
>>
>>
>>
>>
>>
[-- Attachment #2: config.txt.yocto --]
[-- Type: text/plain, Size: 36441 bytes --]
dtdebug=1
################################################################################
## Raspberry Pi Configuration Settings
##
## Revision 16, 2013/06/22
##
## Details taken from the eLinux wiki
## For up-to-date information please refer to wiki page.
##
## Wiki Location : http://elinux.org/RPiconfig
##
##
## Description:
## Details of each setting are described with each section that begins with
## a double hashed comment ('##')
## It is up to the user to remove the single hashed comment ('#') from each
## option they want to enable, and to set the specific value of that option.
##
## Overclock settings will be disabled at runtime if the SoC reaches temp_limit
##
################################################################################
################################################################################
## Standard Definition Video Settings
################################################################################
## sdtv_mode
## defines the TV standard for composite output
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal NTSC (Default)
## 1 Japanese version of NTSC - no pedestal
## 2 Normal PAL
## 3 Brazilian version of PAL - 525/60 rather than 625/50, different
## subcarrier
##
#sdtv_mode=0
## sdtv_aspect
## defines the aspect ratio for composite output
##
## Value Description
## -------------------------------------------------------------------------
## 1 4:3 (Default)
## 2 14:9
## 3 16:9
##
#sdtv_aspect=1
## sdtv_disable_colourburst
## Disables colour burst on composite output. The picture will be
## monochrome, but possibly sharper
##
## Value Description
## -------------------------------------------------------------------------
## 0 Colour burst is enabled (Default)
## 1 Colour burst is disabled
##
#sdtv_disable_colourburst=1
################################################################################
## High Definition Video Settings
################################################################################
## hdmi_safe
## Use "safe mode" settings to try to boot with maximum hdmi compatibility.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Enabled (this does: hdmi_force_hotplug=1,
## hdmi_ignore_edid=0xa5000080,
## config_hdmi_boost=4, hdmi_group=2,
## hdmi_mode=4, disable_overscan=0,
## overscan_left=24, overscan_right=24,
## overscan_top=24, overscan_bottom=24)
##
#hdmi_safe=1
## hdmi_force_hotplug
## Pretends HDMI hotplug signal is asserted so it appears a HDMI display
## is attached
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Use HDMI mode even if no HDMI monitor is detected
##
#hdmi_force_hotplug=1
## hdmi_ignore_hotplug
## Pretends HDMI hotplug signal is not asserted so it appears a HDMI
## display is not attached
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Use composite mode even if HDMI monitor is detected
##
#hdmi_ignore_hotplug=1
## hdmi_drive
## chooses between HDMI and DVI modes
##
## Value Description
## -------------------------------------------------------------------------
## 1 Normal DVI mode (No sound)
## 2 Normal HDMI mode (Sound will be sent if supported and enabled)
##
#hdmi_drive=2
## hdmi_ignore_edid
## Enables the ignoring of EDID/display data
##
#hdmi_ignore_edid=0xa5000080
## hdmi_edid_file
## Read the EDID data from the edid.dat file instead of from the attached
## device
##
## Value Description
## -------------------------------------------------------------------------
## 0 Read EDID data from attached device (Default)
## 1 Read EDID data from edid.txt file
##
#hdmi_edid_file=1
## hdmi_ignore_edid_audio
## Pretends all audio formats are unsupported by display. This means ALSA
## will default to analogue.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend all audio formats are unsupported
##
#hdmi_ignore_edid_audio=1
## hdmi_force_edid_audio
## Pretends all audio formats are supported by display, allowing
## passthrough of DTS/AC3 even when not reported as supported.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend all audio formats are supported
##
#hdmi_force_edid_audio=1
## hdmi_force_edid_3d
## Pretends all CEA modes support 3D even when edid doesn't indicate
## support for them.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 Pretend 3D mode is supported
##
#hdmi_force_edid_3d=1
## avoid_edid_fuzzy_match
## Avoid fuzzy matching of modes described in edid.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use fuzzy matching (Default)
## 1 Avoid fuzzy matching
##
#avoid_edid_fuzzy_match=1
## hdmi_pixel_encoding
## Force the pixel encoding mode.
## By default it will use the mode requested from edid so shouldn't
## need changing.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use EDID provided values (Default)
## 1 RGB limited (16-235)
## 2 RGB full ( 0-255)
## 3 YCbCr limited (16-235)
## 4 YCbCr limited ( 0-255)
##
#hdmi_pixel_encoding=1
## hdmi_group
## Defines the HDMI type
##
## Value Description
## -------------------------------------------------------------------------
## 0 Use the preferred group reported by the edid (Default)
## 1 CEA
## 2 DMT
##
#hdmi_group=1
## hdmi_mode
## defines screen resolution in CEA or DMT format
##
## H means 16:9 variant (of a normally 4:3 mode).
## 2x means pixel doubled (i.e. higher clock rate, with each pixel repeated
## twice)
## 4x means pixel quadrupled (i.e. higher clock rate, with each pixel
## repeated four times)
## reduced blanking means fewer bytes are used for blanking within the data
## stream (i.e. lower clock rate, with fewer wasted bytes)
##
## Value hdmi_group=CEA hdmi_group=DMT
## -------------------------------------------------------------------------
## 1 VGA 640x350 85Hz
## 2 480p 60Hz 640x400 85Hz
## 3 480p 60Hz H 720x400 85Hz
## 4 720p 60Hz 640x480 60Hz
## 5 1080i 60Hz 640x480 72Hz
## 6 480i 60Hz 640x480 75Hz
## 7 480i 60Hz H 640x480 85Hz
## 8 240p 60Hz 800x600 56Hz
## 9 240p 60Hz H 800x600 60Hz
## 10 480i 60Hz 4x 800x600 72Hz
## 11 480i 60Hz 4x H 800x600 75Hz
## 12 240p 60Hz 4x 800x600 85Hz
## 13 240p 60Hz 4x H 800x600 120Hz
## 14 480p 60Hz 2x 848x480 60Hz
## 15 480p 60Hz 2x H 1024x768 43Hz DO NOT USE
## 16 1080p 60Hz 1024x768 60Hz
## 17 576p 50Hz 1024x768 70Hz
## 18 576p 50Hz H 1024x768 75Hz
## 19 720p 50Hz 1024x768 85Hz
## 20 1080i 50Hz 1024x768 120Hz
## 21 576i 50Hz 1152x864 75Hz
## 22 576i 50Hz H 1280x768 reduced blanking
## 23 288p 50Hz 1280x768 60Hz
## 24 288p 50Hz H 1280x768 75Hz
## 25 576i 50Hz 4x 1280x768 85Hz
## 26 576i 50Hz 4x H 1280x768 120Hz reduced blanking
## 27 288p 50Hz 4x 1280x800 reduced blanking
## 28 288p 50Hz 4x H 1280x800 60Hz
## 29 576p 50Hz 2x 1280x800 75Hz
## 30 576p 50Hz 2x H 1280x800 85Hz
## 31 1080p 50Hz 1280x800 120Hz reduced blanking
## 32 1080p 24Hz 1280x960 60Hz
## 33 1080p 25Hz 1280x960 85Hz
## 34 1080p 30Hz 1280x960 120Hz reduced blanking
## 35 480p 60Hz 4x 1280x1024 60Hz
## 36 480p 60Hz 4x H 1280x1024 75Hz
## 37 576p 50Hz 4x 1280x1024 85Hz
## 38 576p 50Hz 4x H 1280x1024 120Hz reduced blanking
## 39 1080i 50Hz reduced blanking 1360x768 60Hz
## 40 1080i 100Hz 1360x768 120Hz reduced blanking
## 41 720p 100Hz 1400x1050 reduced blanking
## 42 576p 100Hz 1400x1050 60Hz
## 43 576p 100Hz H 1400x1050 75Hz
## 44 576i 100Hz 1400x1050 85Hz
## 45 576i 100Hz H 1400x1050 120Hz reduced blanking
## 46 1080i 120Hz 1440x900 reduced blanking
## 47 720p 120Hz 1440x900 60Hz
## 48 480p 120Hz 1440x900 75Hz
## 49 480p 120Hz H 1440x900 85Hz
## 50 480i 120Hz 1440x900 120Hz reduced blanking
## 51 480i 120Hz H 1600x1200 60Hz
## 52 576p 200Hz 1600x1200 65Hz
## 53 576p 200Hz H 1600x1200 70Hz
## 54 576i 200Hz 1600x1200 75Hz
## 55 576i 200Hz H 1600x1200 85Hz
## 56 480p 240Hz 1600x1200 120Hz reduced blanking
## 57 480p 240Hz H 1680x1050 reduced blanking
## 58 480i 240Hz 1680x1050 60Hz
## 59 480i 240Hz H 1680x1050 75Hz
## 60 1680x1050 85Hz
## 61 1680x1050 120Hz reduced blanking
## 62 1792x1344 60Hz
## 63 1792x1344 75Hz
## 64 1792x1344 120Hz reduced blanking
## 65 1856x1392 60Hz
## 66 1856x1392 75Hz
## 67 1856x1392 120Hz reduced blanking
## 68 1920x1200 reduced blanking
## 69 1920x1200 60Hz
## 70 1920x1200 75Hz
## 71 1920x1200 85Hz
## 72 1920x1200 120Hz reduced blanking
## 73 1920x1440 60Hz
## 74 1920x1440 75Hz
## 75 1920x1440 120Hz reduced blanking
## 76 2560x1600 reduced blanking
## 77 2560x1600 60Hz
## 78 2560x1600 75Hz
## 79 2560x1600 85Hz
## 80 2560x1600 120Hz reduced blanking
## 81 1366x768 60Hz
## 82 1080p 60Hz
## 83 1600x900 reduced blanking
## 84 2048x1152 reduced blanking
## 85 720p 60Hz
## 86 1366x768 reduced blanking
##
#hdmi_mode=1
## config_hdmi_boost
## configure the signal strength of the HDMI interface.
##
## Value Description
## -------------------------------------------------------------------------
## 0 (Default)
## 1
## 2
## 3
## 4 Try if you have interference issues with HDMI
## 5
## 6
## 7 Maximum
##
#config_hdmi_boost=0
## hdmi_ignore_cec_init
## Doesn't sent initial active source message. Avoids bringing
## (CEC enabled) TV out of standby and channel switch when rebooting.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal behaviour (Default)
## 1 Doesn't sent initial active source message
##
#hdmi_ignore_cec_init=1
## hdmi_ignore_cec
## Pretends CEC is not supported at all by TV.
## No CEC functions will be supported.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Normal behaviour (Default)
## 1 Pretend CEC is not supported by TV
##
#hdmi_ignore_cec=1
################################################################################
## Overscan Video Settings
################################################################################
## overscan_left
## Number of pixels to skip on left
##
#overscan_left=0
## overscan_right
## Number of pixels to skip on right
##
#overscan_right=0
## overscan_top
## Number of pixels to skip on top
##
#overscan_top=0
## overscan_bottom
## Number of pixels to skip on bottom
##
#overscan_bottom=0
## disable_overscan
## Set to 1 to disable overscan
##
## Value Description
## -------------------------------------------------------------------------
## 0 Overscan Enabled (Default)
## 1 Overscan Disabled
##
disable_overscan=1
################################################################################
## Framebuffer Video Settings
################################################################################
## framebuffer_width
## Console framebuffer width in pixels. Default is display width minus
## overscan.
##
#framebuffer_width=0
## framebuffer_height
## Console framebuffer height in pixels. Default is display height minus
## overscan.
##
#framebuffer_height=0
## framebuffer_depth
## Console framebuffer depth in bits per pixel.
##
## Value Description
## -------------------------------------------------------------------------
## 8 Valid, but default RGB palette makes an unreadable screen
## 16 (Default)
## 24 Looks better but has corruption issues as of 2012/06/15
## 32 Has no corruption issues but needs framebuffer_ignore_alpha=1
## and shows the wrong colors as of 2012/06/15
##
#framebuffer_depth=16
## framebuffer_ignore_alpha
## Set to 1 to disable alpha channel. Helps with 32bit.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable Alpha Channel (Default)
## 1 Disable Alpha Channel
##
#framebuffer_ignore_alpha=0
################################################################################
## General Video Settings
################################################################################
## display_rotate
## Rotate the display clockwise or flip the display.
## The 90 and 270 degrees rotation options require additional memory on GPU,
## so won't work with the 16M GPU split.
##
## Value Description
## -------------------------------------------------------------------------
## 0 0 degrees (Default)
## 1 90 degrees
## 2 180 degrees
## 3 270 degrees
## 0x10000 Horizontal flip
## 0x20000 Vertical flip
##
#display_rotate=0
## dispmanx_offline
## Set to "1" to enable offline compositing
##
## Default 0
##
#dispmanx_offline=0
################################################################################
## Licensed Codecs
##
## Hardware decoding of additional codecs can be enabled by purchasing a
## license that is locked to the CPU serial number of your Raspberry Pi.
##
## Up to 8 licenses per CODEC can be specified as a comma seperated list.
##
################################################################################
## decode_MPG2
## License key to allow hardware MPEG-2 decoding.
##
#decode_MPG2=0x12345678
## decode_WVC1
## License key to allow hardware VC-1 decoding.
##
#decode_WVC1=0x12345678
################################################################################
## Camera Settings
################################################################################
## start_x
## Set to "1" to enable the camera module.
##
## Enabling the camera requires gpu_mem option to be specified with a value
## of at least 128.
##
## Default 0
##
#start_x=0
## disable_camera_led
## Turn off the red camera led when recording video or taking a still
## picture.
##
## Value Description
## -------------------------------------------------------------------------
## 0 LED enabled (Default)
## 1 LED disabled
##
#disable_camera_led=1
################################################################################
## Test Settings
################################################################################
## test_mode
## Enable test sound/image during boot for manufacturing test.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disable Test Mod (Default)
## 1 Enable Test Mode
##
#test_mode=0
################################################################################
## Memory Settings
################################################################################
## disable_l2cache
## Disable arm access to GPU's L2 cache. Needs corresponding L2 disabled
## kernel.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable L2 Cache (Default)
## 1 Disable L2 cache
##
#disable_l2cache=0
## gpu_mem
## GPU memory allocation in MB for all board revisions.
##
## Default 64
##
#gpu_mem=128
## gpu_mem_256
## GPU memory allocation in MB for 256MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_256=192
## gpu_mem_512
## GPU memory allocation in MB for 512MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_512=448
## gpu_mem_1024
## GPU memory allocation in MB for 1024MB board revision.
## This option overrides gpu_mem.
##
#gpu_mem_1024=944
## disable_pvt
## Disable adjusting the refresh rate of RAM every 500ms
## (measuring RAM temparature).
##
#disable_pvt=1
################################################################################
## CMA - Dynamic Memory Split
##
## CMA enables dynamic management of the ARM and GPU memory split at runtime.
##
## The following options need to be in cmdline.txt for CMA to work:
## coherent_pool=6M smsc95xx.turbo_mode=N
##
################################################################################
## cma_lwm
## When GPU has less than cma_lwm (low water mark) memory available it
## will request some from ARM.
##
#cma_lwm=16
## cma_hwm
## When GPU has more than cma_hwm (high water mark) memory available it
## will release some to ARM.
##
#cma_hwm=32
################################################################################
## Boot Option Settings
################################################################################
## disable_commandline_tags
## Stop start.elf from filling in ATAGS (memory from 0x100) before
## launching kernel
##
#disable_commandline_tags=0
## cmdline (string)
## Command line parameters. Can be used instead of cmdline.txt file
##
#cmdline=""
## kernel (string)
## Alternative name to use when loading kernel.
##
#kernel=""
## kernel_address
## Address to load kernel.img file at
##
#kernel_address=0x00000000
## kernel_old
## Support loading old kernels
##
## Value Description
## -------------------------------------------------------------------------
## 0 Disabled (Default)
## 1 Load kernel at address 0x00000000
##
#kernel_old=1
## ramfsfile (string)
## ramfs file to load
##
#ramfsfile=""
## ramfsaddr
## Address to load ramfs file at
##
#ramfsaddr=0x00000000
## initramfs (string address)
## ramfs file and address to load it at (it's like ramfsfile+ramfsaddr in
## one option).
##
## NOTE: this option uses different syntax than all other options - you
## should not use "=" character here.
##
#initramfs initramf.gz 0x00800000
## device_tree_address
## Address to load device_tree at
##
#device_tree_address=0x00000000
## init_uart_baud
## Initial uart baud rate.
##
## Default 115200
##
#init_uart_baud=115200
## init_uart_clock
## Initial uart clock.
##
## Default 3000000 (3MHz)
##
#init_uart_clock=3000000
## init_emmc_clock
## Initial emmc clock, increasing this can speedup your SD-card.
##
## Default 100000000 (100mhz)
##
#init_emmc_clock=100000000
## boot_delay
## Wait for a given number of seconds in start.elf before loading
## kernel.img.
##
## delay = (1000 * boot_delay) + boot_delay_ms
##
## Default 1
##
boot_delay=0
## boot_delay_ms
## Wait for a given number of milliseconds in start.elf before loading
## kernel.img.
##
## delay = (1000 * boot_delay) + boot_delay_ms
##
## Default 0
##
boot_delay_ms=0
## avoid_safe_mode
## Adding a jumper between pins 5 & 6 of P1 enables a recovery Safe Mode.
## If pins 5 & 6 are used for connecting to external devices (e.g. GPIO),
## then this setting can be used to ensure Safe Mode is not triggered.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Respect Safe Mode input (Default)
## 1 Ignore Safe Mode input
##
#avoid_safe_mode=1
## disable_splash
## Avoids the rainbow splash screen on boot.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Splash screen enabled (Default)
## 1 Splash screen disabled
##
disable_splash=1
################################################################################
## Overclocking Settings
##
## ARM, SDRAM and GPU each have their own PLLs and can have unrelated
## frequencies.
##
## The GPU core, h264, v3d and isp share a PLL, so need to have related
## frequencies.
## pll_freq = floor(2400 / (2 * core_freq)) * (2 * core_freq)
## gpu_freq = pll_freq / [even number]
##
## The effective gpu_freq is automatically rounded to nearest even integer, so
## asking for core_freq = 500 and gpu_freq = 300 will result in divisor of
## 2000/300 = 6.666 => 6 and so 333.33MHz.
##
##
## Standard Profiles:
## arm_freq core_freq sdram_freq over_voltage
## -------------------------------------------------------------------------
## None 700 250 400 0
## Modest 800 300 400 0
## Medium 900 333 450 2
## High 950 450 450 6
## Turbo 1000 500 500 6
##
################################################################################
## force_turbo
## Control the kernel "ondemand" governor. It has no effect if no overclock
## settings are specified.
## May set warrany bit.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Enable dynamic clocks and voltage for the ARM core, GPU core and
## SDRAM (Default).
## Overclocking of h264_freq, v3d_freq and isp_freq is ignored.
## 1 Disable dynamic clocks and voltage for the ARM core, GPU core
## and SDRAM.
## Overclocking of h264_freq, v3d_freq and isp_freq is allowed.
##
#force_turbo=0
## initial_turbo
## Enables turbo mode from boot for the given value in seconds (up to 60)
## or until cpufreq sets a frequency. Can help with sdcard corruption if
## overclocked.
##
## Default 0
##
#initial_turbo=0
## temp_limit
## Overheat protection. Sets clocks and voltages to default when the SoC
## reaches this Celsius value.
## Setting this higher than default voids warranty.
##
## Default 85
##
#temp_limit=85
## arm_freq
## Frequency of ARM in MHz.
##
## Default 700.
##
#arm_freq=700
## arm_freq_min
## Minimum frequency of ARM in MHz (used for dynamic clocking).
##
## Default 700.
##
#arm_freq_min=700
## gpu_freq
## Sets core_freq, h264_freq, isp_freq, v3d_freq together.
##
## Default 250.
##
#gpu_freq=250
## core_freq
## Frequency of GPU processor core in MHz. It has an impact on ARM
## performance since it drives L2 cache.
##
## Default 250.
##
#core_freq=250
## core_freq_min
## Minimum frequency of GPU processor core in MHz (used for dynamic
## clocking). It has an impact on ARM performance since it drives L2 cache.
##
## Default 250.
##
#core_freq_min=250
## h264_freq
## Frequency of hardware video block in MHz.
##
## Default 250.
##
#h264_freq=250
## isp_freq
## Frequency of image sensor pipeline block in MHz.
##
## Default 250.
##
#isp_freq=250
## v3d_freq
## Frequency of 3D block in MHz.
##
## Default 250.
##
#v3d_freq=250
## sdram_freq
## Frequency of SDRAM in MHz.
##
## Default 400.
##
#sdram_freq=400
## sdram_freq_min
## Minimum frequency of SDRAM in MHz (used for dynamic clocking).
##
## Default 400.
##
#sdram_freq_min=400
## avoid_pwm_pll
## Don't dedicate a pll to PWM audio. This will reduce analogue audio
## quality slightly. The spare PLL allows the core_freq to be set
## independently from the rest of the gpu allowing more control over
## overclocking.
##
## Value Description
## -------------------------------------------------------------------------
## 0 Linked core_freq (Default)
## 1 Unlinked core_freq
##
#avoid_pwm_pll=1
################################################################################
## Voltage Settings
################################################################################
## current_limit_override
## Disables SMPS current limit protection. Can help if you are currently
## hitting a reboot failure when overclocking too high.
## May set warrany bit.
##
#current_limit_override=0x5A000020
## over_voltage
## ARM/GPU core voltage adjust.
## May set warrany bit.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V (requires force_turbo=1 or current_limit_override)
## 8 1.4 V (requires force_turbo=1 or current_limit_override)
##
#over_voltage=0
## over_voltage_min
## Minimum ARM/GPU core voltage adjust (used for dynamic clocking).
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V (requires force_turbo=1)
## 8 1.4 V (requires force_turbo=1)
##
#over_voltage_min=0
## over_voltage_sdram
## Sets over_voltage_sdram_c, over_voltage_sdram_i, over_voltage_sdram_p
## together
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram=0
## over_voltage_sdram_c
## SDRAM controller voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_c=0
## over_voltage_sdram_i
## SDRAM I/O voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_i=0
## over_voltage_sdram_p
## SDRAM phy voltage adjust.
##
## Value Description
## -------------------------------------------------------------------------
## -16 0.8 V
## -15 0.825 V
## -14 0.85 V
## -13 0.875 V
## -12 0.9 V
## -11 0.925 V
## -10 0.95 V
## -9 0.975 V
## -8 1.0 V
## -7 1.025 V
## -6 1.05 V
## -5 1.075 V
## -4 1.1 V
## -3 1.125 V
## -2 1.15 V
## -1 1.175 V
## 0 1.2 V (Default)
## 1 1.225 V
## 2 1.25 V
## 3 1.275 V
## 4 1.3 V
## 5 1.325 V
## 6 1.35 V
## 7 1.375 V
## 8 1.4 V
##
#over_voltage_sdram_p=0
################################################################################
## USB Power
################################################################################
## max_usb_current
## When set to 1, change the output current limit (for all 4 USB
## ports combined) from 600mA to double that, 1200mA.
##
## This option is not available for Model A/B boards.
##
## Default 0.
##
#max_usb_current=0
################################################################################
## Base Device Tree Parameters
################################################################################
## audio
## Enable the onboard ALSA audio
##
## Default off.
##
#dtparam=audio=off
## i2c_arm
## Enable the ARM's i2c interface
##
## Default off.
##
#dtparam=i2c_arm=off
## i2c_vc
## Enable the i2c interface
##
## Usually reserved for the VideoCore processor
##
## Default off.
##
#dtparam=i2c_vc=off
## i2c_arm_baudrate
## Set the baudrate of the ARM's i2c interface
##
## Default 100000.
##
#dtparam=i2c_arm_baudrate=100000
## i2c_vc_baudrate
## Set the baudrate of the VideoCore i2c interface
##
## Default 100000.
##
#dtparam=i2c_vc_baudrate=100000
## i2s
## Set to "on" to enable the i2s interface
##
## Default off.
##
#dtparam=i2s=off
## spi
## Set to "on" to enable the spi interfaces
##
## Default off.
##
#dtparam=spi=off
## random
## Set to "on" to enable the hardware random
##
## Default off.
##
#dtparam=random=off
## uart0
## Set to "off" to disable uart0
##
## Default on.
##
#dtparam=uart0=on
## watchdog
## Set to "on" to enable the hardware watchdog
##
## Default off.
##
#dtparam=watchdog=off
## act_led_trigger
## Choose which activity the LED tracks.
##
## Use "heartbeat" for a nice load indicator.
##
## Default mmc.
##
#dtparam=act_led_trigger=mmc
## act_led_activelow
## Set to "on" to invert the sense of the LED
##
## Default off.
##
#dtparam=act_led_activelow=off
## act_led_gpio
## Set which GPIO to use for the activity LED
##
## In case you want to connect it to an external device
##
## Default 16 on a non-Plus board, 47 on a Plus or Pi 2.
##
#dtparam=act_led_gpio=47
## pwr_led_trigger
## Choose which activity the LED tracks.
##
## Use "heartbeat" for a nice load indicator.
##
## Not available on Model A/B boards.
##
## Default mmc.
##
#dtparam=pwr_led_trigger=mmc
## pwr_led_activelow
## Set to "on" to invert the sense of the LED
##
## Not available on Model A/B boards.
##
## Default off.
##
#dtparam=pwr_led_activelow=off
## pwr_led_gpio
## Set which GPIO to use for the PWR LED
##
## In case you want to connect it to an external device
##
## Not available on Model A/B boards.
##
## Default 35.
##
#dtparam=pwr_led_gpio=35
# Enable I2C
dtparam=i2c1=on
dtparam=i2c_arm=on
# Enable UART
enable_uart=1
# Enable VC4 Graphics
dtoverlay=vc4-kms-v3d
# Raspberry Pi PWM for LED
dtoverlay=pwm-2chan,pin=12,func=4
# Gumstix DTB setup
dtoverlay=devicetree-rpi_cm-EMPTY
dtoverlay=sdio,poll_once=off
[-- Attachment #3: config.txt --]
[-- Type: text/plain, Size: 1784 bytes --]
# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
[all]
#dtoverlay=vc4-fkms-v3d
^ permalink raw reply [flat|nested] 14+ messages in thread* Re: [yocto] Raspberry PI enabling MMC1
2020-11-18 0:29 ` chuck kamas
@ 2020-11-20 17:52 ` Khem Raj
0 siblings, 0 replies; 14+ messages in thread
From: Khem Raj @ 2020-11-20 17:52 UTC (permalink / raw)
To: Chuck Kamas; +Cc: Yocto-mailing-list
Can you also post the content list of /boot/overlays directory on raspbian
On Tue, Nov 17, 2020 at 4:29 PM Chuck Kamas <chuckkamas@yahoo.com> wrote:
>
> Raj,
>
>
> Thanks for taking the time to respond. I thought of that too. My custom
> Yocto build has the line to turn on the sdio in it:
>
> > dtoverlay=sdio,poll_once=off
>
> I have attached the entire file: config.txt.yocto
>
> However, the Rasbian image does not have any mention of the dtoverlay
> for the sdio. Curious. See config.txt attached.
>
>
> Thanks for the help!
>
> Chuck
>
>
> On 11/17/20 12:08 AM, Khem Raj wrote:
> > On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
> > lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
> > wrote:
> >> Hi all,
> >>
> >>
> >> I have been spinning my wheels for two days trying to discover how to
> >> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
> >> on the CM3 and it inits the MMC1 and its pins just fine. I can
> >> read/write to my SD card from it etc. However, when I build yocto it
> >> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
> >> I have tried changing the device tree as described here:
> >>
> >> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
> >>
> >> That compiles and add the .dtbo to my build, but still the GPIOS are not
> >> set to MMC1 mode.
> >>
> >>> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
> >>> Pinmux settings per pin
> >>> Format: pin (name): mux_owner gpio_owner hog?
> >>> ....
> >>>
> >>> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> >>> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> >>> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> >>> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> >>> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> >>> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> >>>
> >>> .....
> >>>
> >> I have looked at:
> >>
> >> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
> >>
> >>
> >> Any ideas of where to look next to turn on the sdio would be appreciated!
> >>
> >>
> > what does /boot/config.txt look like on raspbian and yocto built images
> >
> >> Chuck
> >>
> >>
> >>
> >>
> >>
^ permalink raw reply [flat|nested] 14+ messages in thread
[parent not found: <16488BC657DA2093.23836@lists.yoctoproject.org>]
* Re: [yocto] Raspberry PI enabling MMC1
[not found] ` <16488BC657DA2093.23836@lists.yoctoproject.org>
@ 2020-11-19 3:59 ` chuck kamas
2020-11-19 3:59 ` chuck kamas
[not found] ` <1648CCC040C7B594.8629@lists.yoctoproject.org>
2 siblings, 0 replies; 14+ messages in thread
From: chuck kamas @ 2020-11-19 3:59 UTC (permalink / raw)
To: yocto
[-- Attachment #1: Type: text/plain, Size: 3010 bytes --]
Raj,
I found out how to debug the boot process of the PI from:
https://github.com/raspberrypi/documentation/blob/master/hardware/raspberrypi/bootmodes/README.md
by turning on the boot code debug.
sed -i -e "s/BOOT_UART=0/BOOT_UART=1/" bootcode.bin
I found out that the sdio overlay does not exist!
> MESS:00:00:07.868162:0: dtdebug: Failed to open overlay file
> 'overlays/sdio.dtbo'
> MESS:00:00:07.874093:0: Failed to load overlay 'sdio'
> MESS:00:00:07.878881:0: brfs: File read: /mfs/sd/overlays/sdio.dtbo
> MESS:00:00:07.891322:0: brfs: File read: /mfs/sd/cmdline.txt
>
So what am I missing on how to turn on the sdio on GPIO22-27? Is it not
an overlay and instead a driver/other code/linux config that needs to be
set?
Chuck
On 11/17/20 4:29 PM, chuck kamas via lists.yoctoproject.org wrote:
> Raj,
>
>
> Thanks for taking the time to respond. I thought of that too. My
> custom Yocto build has the line to turn on the sdio in it:
>
>> dtoverlay=sdio,poll_once=off
>
> I have attached the entire file: config.txt.yocto
>
> However, the Rasbian image does not have any mention of the dtoverlay
> for the sdio. Curious. See config.txt attached.
>
>
> Thanks for the help!
>
> Chuck
>
>
> On 11/17/20 12:08 AM, Khem Raj wrote:
>> On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
>> lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
>> wrote:
>>> Hi all,
>>>
>>>
>>> I have been spinning my wheels for two days trying to discover how to
>>> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
>>> on the CM3 and it inits the MMC1 and its pins just fine. I can
>>> read/write to my SD card from it etc. However, when I build yocto it
>>> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
>>> I have tried changing the device tree as described here:
>>>
>>> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
>>>
>>>
>>> That compiles and add the .dtbo to my build, but still the GPIOS are
>>> not
>>> set to MMC1 mode.
>>>
>>>> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
>>>> Pinmux settings per pin
>>>> Format: pin (name): mux_owner gpio_owner hog?
>>>> ....
>>>>
>>>> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>
>>>> .....
>>>>
>>> I have looked at:
>>>
>>> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
>>>
>>>
>>>
>>> Any ideas of where to look next to turn on the sdio would be
>>> appreciated!
>>>
>>>
>> what does /boot/config.txt look like on raspbian and yocto built images
>>
>>> Chuck
>>>
>>>
>>>
>>>
>>>
>
>
>
>
>
>
[-- Attachment #2: Type: text/html, Size: 5661 bytes --]
^ permalink raw reply [flat|nested] 14+ messages in thread* Re: [yocto] Raspberry PI enabling MMC1
[not found] ` <16488BC657DA2093.23836@lists.yoctoproject.org>
2020-11-19 3:59 ` chuck kamas
@ 2020-11-19 3:59 ` chuck kamas
[not found] ` <1648CCC040C7B594.8629@lists.yoctoproject.org>
2 siblings, 0 replies; 14+ messages in thread
From: chuck kamas @ 2020-11-19 3:59 UTC (permalink / raw)
To: yocto
[-- Attachment #1.1: Type: text/plain, Size: 3016 bytes --]
Raj,
I found out how to debug the boot process of the PI from:
https://github.com/raspberrypi/documentation/blob/master/hardware/raspberrypi/bootmodes/README.md
by turning on the boot code debug.
sed -i -e "s/BOOT_UART=0/BOOT_UART=1/" bootcode.bin
I found out that the sdio overlay does not exist!
> MESS:00:00:07.868162:0: dtdebug: Failed to open overlay file
> 'overlays/sdio.dtbo'
> MESS:00:00:07.874093:0: Failed to load overlay 'sdio'
> MESS:00:00:07.878881:0: brfs: File read: /mfs/sd/overlays/sdio.dtbo
> MESS:00:00:07.891322:0: brfs: File read: /mfs/sd/cmdline.txt
>
So what am I missing on how to turn on the sdio on GPIO22-27? Is it not
an overlay and instead a driver/other code/linux config that needs to be
set?
Chuck
On 11/17/20 4:29 PM, chuck kamas via lists.yoctoproject.org wrote:
> Raj,
>
>
> Thanks for taking the time to respond. I thought of that too. My
> custom Yocto build has the line to turn on the sdio in it:
>
>> dtoverlay=sdio,poll_once=off
>
> I have attached the entire file: config.txt.yocto
>
> However, the Rasbian image does not have any mention of the dtoverlay
> for the sdio. Curious. See config.txt attached.
>
>
> Thanks for the help!
>
> Chuck
>
>
> On 11/17/20 12:08 AM, Khem Raj wrote:
>> On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
>> lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
>> wrote:
>>> Hi all,
>>>
>>>
>>> I have been spinning my wheels for two days trying to discover how to
>>> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
>>> on the CM3 and it inits the MMC1 and its pins just fine. I can
>>> read/write to my SD card from it etc. However, when I build yocto it
>>> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
>>> I have tried changing the device tree as described here:
>>>
>>> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
>>>
>>>
>>> That compiles and add the .dtbo to my build, but still the GPIOS are
>>> not
>>> set to MMC1 mode.
>>>
>>>> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
>>>> Pinmux settings per pin
>>>> Format: pin (name): mux_owner gpio_owner hog?
>>>> ....
>>>>
>>>> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>
>>>> .....
>>>>
>>> I have looked at:
>>>
>>> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
>>>
>>>
>>>
>>> Any ideas of where to look next to turn on the sdio would be
>>> appreciated!
>>>
>>>
>> what does /boot/config.txt look like on raspbian and yocto built images
>>
>>> Chuck
>>>
>>>
>>>
>>>
>>>
>
>
>
>
>
>
[-- Attachment #1.2: Type: text/html, Size: 5510 bytes --]
^ permalink raw reply [flat|nested] 14+ messages in thread[parent not found: <1648CCC040C7B594.8629@lists.yoctoproject.org>]
* Re: [yocto] Raspberry PI enabling MMC1
[not found] ` <1648CCC040C7B594.8629@lists.yoctoproject.org>
@ 2020-11-19 4:32 ` chuck kamas
2020-11-19 4:32 ` chuck kamas
1 sibling, 0 replies; 14+ messages in thread
From: chuck kamas @ 2020-11-19 4:32 UTC (permalink / raw)
To: yocto
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Making some progress here!
I added a compiled version of the attached device tree and now the mmc1
shows up in my yocto image! Yes! Now I need to find out the secret magic
in that tree that I need to add...
Chuck
On 11/18/20 7:59 PM, chuck kamas via lists.yoctoproject.org wrote:
>
> Raj,
>
>
> I found out how to debug the boot process of the PI from:
>
> https://github.com/raspberrypi/documentation/blob/master/hardware/raspberrypi/bootmodes/README.md
>
> by turning on the boot code debug.
>
> sed -i -e "s/BOOT_UART=0/BOOT_UART=1/" bootcode.bin
>
>
> I found out that the sdio overlay does not exist!
>
>> MESS:00:00:07.868162:0: dtdebug: Failed to open overlay file
>> 'overlays/sdio.dtbo'
>> MESS:00:00:07.874093:0: Failed to load overlay 'sdio'
>> MESS:00:00:07.878881:0: brfs: File read: /mfs/sd/overlays/sdio.dtbo
>> MESS:00:00:07.891322:0: brfs: File read: /mfs/sd/cmdline.txt
>>
>
> So what am I missing on how to turn on the sdio on GPIO22-27? Is it
> not an overlay and instead a driver/other code/linux config that needs
> to be set?
>
>
> Chuck
>
>
> On 11/17/20 4:29 PM, chuck kamas via lists.yoctoproject.org wrote:
>> Raj,
>>
>>
>> Thanks for taking the time to respond. I thought of that too. My
>> custom Yocto build has the line to turn on the sdio in it:
>>
>>> dtoverlay=sdio,poll_once=off
>>
>> I have attached the entire file: config.txt.yocto
>>
>> However, the Rasbian image does not have any mention of the dtoverlay
>> for the sdio. Curious. See config.txt attached.
>>
>>
>> Thanks for the help!
>>
>> Chuck
>>
>>
>> On 11/17/20 12:08 AM, Khem Raj wrote:
>>> On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
>>> lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
>>> wrote:
>>>> Hi all,
>>>>
>>>>
>>>> I have been spinning my wheels for two days trying to discover how to
>>>> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
>>>> on the CM3 and it inits the MMC1 and its pins just fine. I can
>>>> read/write to my SD card from it etc. However, when I build yocto it
>>>> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
>>>> I have tried changing the device tree as described here:
>>>>
>>>> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
>>>>
>>>>
>>>> That compiles and add the .dtbo to my build, but still the GPIOS
>>>> are not
>>>> set to MMC1 mode.
>>>>
>>>>> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
>>>>> Pinmux settings per pin
>>>>> Format: pin (name): mux_owner gpio_owner hog?
>>>>> ....
>>>>>
>>>>> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>>
>>>>> .....
>>>>>
>>>> I have looked at:
>>>>
>>>> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
>>>>
>>>>
>>>>
>>>> Any ideas of where to look next to turn on the sdio would be
>>>> appreciated!
>>>>
>>>>
>>> what does /boot/config.txt look like on raspbian and yocto built images
>>>
>>>> Chuck
>>>>
>>>>
>>>>
>>>>
>>>>
>>
>>
>>
>>
>
>
>
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^ permalink raw reply [flat|nested] 14+ messages in thread* Re: [yocto] Raspberry PI enabling MMC1
[not found] ` <1648CCC040C7B594.8629@lists.yoctoproject.org>
2020-11-19 4:32 ` chuck kamas
@ 2020-11-19 4:32 ` chuck kamas
2020-11-20 12:22 ` Erik Boto
2020-11-20 12:22 ` Erik Boto
1 sibling, 2 replies; 14+ messages in thread
From: chuck kamas @ 2020-11-19 4:32 UTC (permalink / raw)
To: yocto
[-- Attachment #1.1: Type: text/plain, Size: 3439 bytes --]
Making some progress here!
I added a compiled version of the attached device tree and now the mmc1
shows up in my yocto image! Yes! Now I need to find out the secret magic
in that tree that I need to add...
Chuck
On 11/18/20 7:59 PM, chuck kamas via lists.yoctoproject.org wrote:
>
> Raj,
>
>
> I found out how to debug the boot process of the PI from:
>
> https://github.com/raspberrypi/documentation/blob/master/hardware/raspberrypi/bootmodes/README.md
>
> by turning on the boot code debug.
>
> sed -i -e "s/BOOT_UART=0/BOOT_UART=1/" bootcode.bin
>
>
> I found out that the sdio overlay does not exist!
>
>> MESS:00:00:07.868162:0: dtdebug: Failed to open overlay file
>> 'overlays/sdio.dtbo'
>> MESS:00:00:07.874093:0: Failed to load overlay 'sdio'
>> MESS:00:00:07.878881:0: brfs: File read: /mfs/sd/overlays/sdio.dtbo
>> MESS:00:00:07.891322:0: brfs: File read: /mfs/sd/cmdline.txt
>>
>
> So what am I missing on how to turn on the sdio on GPIO22-27? Is it
> not an overlay and instead a driver/other code/linux config that needs
> to be set?
>
>
> Chuck
>
>
> On 11/17/20 4:29 PM, chuck kamas via lists.yoctoproject.org wrote:
>> Raj,
>>
>>
>> Thanks for taking the time to respond. I thought of that too. My
>> custom Yocto build has the line to turn on the sdio in it:
>>
>>> dtoverlay=sdio,poll_once=off
>>
>> I have attached the entire file: config.txt.yocto
>>
>> However, the Rasbian image does not have any mention of the dtoverlay
>> for the sdio. Curious. See config.txt attached.
>>
>>
>> Thanks for the help!
>>
>> Chuck
>>
>>
>> On 11/17/20 12:08 AM, Khem Raj wrote:
>>> On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
>>> lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
>>> wrote:
>>>> Hi all,
>>>>
>>>>
>>>> I have been spinning my wheels for two days trying to discover how to
>>>> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
>>>> on the CM3 and it inits the MMC1 and its pins just fine. I can
>>>> read/write to my SD card from it etc. However, when I build yocto it
>>>> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
>>>> I have tried changing the device tree as described here:
>>>>
>>>> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
>>>>
>>>>
>>>> That compiles and add the .dtbo to my build, but still the GPIOS
>>>> are not
>>>> set to MMC1 mode.
>>>>
>>>>> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
>>>>> Pinmux settings per pin
>>>>> Format: pin (name): mux_owner gpio_owner hog?
>>>>> ....
>>>>>
>>>>> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>>>>
>>>>> .....
>>>>>
>>>> I have looked at:
>>>>
>>>> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
>>>>
>>>>
>>>>
>>>> Any ideas of where to look next to turn on the sdio would be
>>>> appreciated!
>>>>
>>>>
>>> what does /boot/config.txt look like on raspbian and yocto built images
>>>
>>>> Chuck
>>>>
>>>>
>>>>
>>>>
>>>>
>>
>>
>>
>>
>
>
>
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^ permalink raw reply [flat|nested] 14+ messages in thread* Re: [yocto] Raspberry PI enabling MMC1
2020-11-19 4:32 ` chuck kamas
@ 2020-11-20 12:22 ` Erik Boto
2020-12-02 0:50 ` chuck kamas
2020-11-20 12:22 ` Erik Boto
1 sibling, 1 reply; 14+ messages in thread
From: Erik Boto @ 2020-11-20 12:22 UTC (permalink / raw)
To: chuckkamas; +Cc: yocto
[-- Attachment #1: Type: text/plain, Size: 3663 bytes --]
On Thu, Nov 19, 2020 at 7:21 PM chuck kamas via lists.yoctoproject.org
<chuckkamas=yahoo.com@lists.yoctoproject.org> wrote:
>
> Making some progress here!
>
>
> I added a compiled version of the attached device tree and now the mmc1 shows up in my yocto image! Yes! Now I need to find out the secret magic in that tree that I need to add...
If I'm not mistaken that should be done by appending
RPI_KERNEL_DEVICETREE_OVERLAYS. If you don't have your own custom
machine configuration where this could be added, try adding the
following to local.conf:
RPI_KERNEL_DEVICETREE_OVERLAYS_append = " overlays/sdio.dtbo "
Cheers,
Erik
>
>
> Chuck
>
>
> On 11/18/20 7:59 PM, chuck kamas via lists.yoctoproject.org wrote:
>
> Raj,
>
>
> I found out how to debug the boot process of the PI from:
>
> https://github.com/raspberrypi/documentation/blob/master/hardware/raspberrypi/bootmodes/README.md
>
> by turning on the boot code debug.
>
> sed -i -e "s/BOOT_UART=0/BOOT_UART=1/" bootcode.bin
>
>
> I found out that the sdio overlay does not exist!
>
> MESS:00:00:07.868162:0: dtdebug: Failed to open overlay file 'overlays/sdio.dtbo'
> MESS:00:00:07.874093:0: Failed to load overlay 'sdio'
> MESS:00:00:07.878881:0: brfs: File read: /mfs/sd/overlays/sdio.dtbo
> MESS:00:00:07.891322:0: brfs: File read: /mfs/sd/cmdline.txt
>
>
> So what am I missing on how to turn on the sdio on GPIO22-27? Is it not an overlay and instead a driver/other code/linux config that needs to be set?
>
>
> Chuck
>
>
> On 11/17/20 4:29 PM, chuck kamas via lists.yoctoproject.org wrote:
>
> Raj,
>
>
> Thanks for taking the time to respond. I thought of that too. My custom Yocto build has the line to turn on the sdio in it:
>
> dtoverlay=sdio,poll_once=off
>
>
> I have attached the entire file: config.txt.yocto
>
> However, the Rasbian image does not have any mention of the dtoverlay for the sdio. Curious. See config.txt attached.
>
>
> Thanks for the help!
>
> Chuck
>
>
> On 11/17/20 12:08 AM, Khem Raj wrote:
>
> On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
> lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
> wrote:
>
> Hi all,
>
>
> I have been spinning my wheels for two days trying to discover how to
> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
> on the CM3 and it inits the MMC1 and its pins just fine. I can
> read/write to my SD card from it etc. However, when I build yocto it
> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
> I have tried changing the device tree as described here:
>
> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
>
> That compiles and add the .dtbo to my build, but still the GPIOS are not
> set to MMC1 mode.
>
> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
> Pinmux settings per pin
> Format: pin (name): mux_owner gpio_owner hog?
> ....
>
> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>
> .....
>
> I have looked at:
>
> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
>
>
> Any ideas of where to look next to turn on the sdio would be appreciated!
>
>
> what does /boot/config.txt look like on raspbian and yocto built images
>
> Chuck
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [yocto] Raspberry PI enabling MMC1
2020-11-20 12:22 ` Erik Boto
@ 2020-12-02 0:50 ` chuck kamas
0 siblings, 0 replies; 14+ messages in thread
From: chuck kamas @ 2020-12-02 0:50 UTC (permalink / raw)
To: yocto
[-- Attachment #1: Type: text/plain, Size: 4098 bytes --]
Thank you all. That is good information to know! However, I already had
a custom machine config that I was able to drop the overlay into. Once I
had the correct overlay enabling the sdio, the SD card works!
Thanks again for all of your help.
On 11/20/20 4:22 AM, Erik Boto wrote:
> On Thu, Nov 19, 2020 at 7:21 PM chuck kamas via lists.yoctoproject.org
> <chuckkamas=yahoo.com@lists.yoctoproject.org> wrote:
>> Making some progress here!
>>
>>
>> I added a compiled version of the attached device tree and now the mmc1 shows up in my yocto image! Yes! Now I need to find out the secret magic in that tree that I need to add...
> If I'm not mistaken that should be done by appending
> RPI_KERNEL_DEVICETREE_OVERLAYS. If you don't have your own custom
> machine configuration where this could be added, try adding the
> following to local.conf:
>
> RPI_KERNEL_DEVICETREE_OVERLAYS_append = " overlays/sdio.dtbo "
>
> Cheers,
> Erik
>>
>> Chuck
>>
>>
>> On 11/18/20 7:59 PM, chuck kamas via lists.yoctoproject.org wrote:
>>
>> Raj,
>>
>>
>> I found out how to debug the boot process of the PI from:
>>
>> https://github.com/raspberrypi/documentation/blob/master/hardware/raspberrypi/bootmodes/README.md
>>
>> by turning on the boot code debug.
>>
>> sed -i -e "s/BOOT_UART=0/BOOT_UART=1/" bootcode.bin
>>
>>
>> I found out that the sdio overlay does not exist!
>>
>> MESS:00:00:07.868162:0: dtdebug: Failed to open overlay file 'overlays/sdio.dtbo'
>> MESS:00:00:07.874093:0: Failed to load overlay 'sdio'
>> MESS:00:00:07.878881:0: brfs: File read: /mfs/sd/overlays/sdio.dtbo
>> MESS:00:00:07.891322:0: brfs: File read: /mfs/sd/cmdline.txt
>>
>>
>> So what am I missing on how to turn on the sdio on GPIO22-27? Is it not an overlay and instead a driver/other code/linux config that needs to be set?
>>
>>
>> Chuck
>>
>>
>> On 11/17/20 4:29 PM, chuck kamas via lists.yoctoproject.org wrote:
>>
>> Raj,
>>
>>
>> Thanks for taking the time to respond. I thought of that too. My custom Yocto build has the line to turn on the sdio in it:
>>
>> dtoverlay=sdio,poll_once=off
>>
>>
>> I have attached the entire file: config.txt.yocto
>>
>> However, the Rasbian image does not have any mention of the dtoverlay for the sdio. Curious. See config.txt attached.
>>
>>
>> Thanks for the help!
>>
>> Chuck
>>
>>
>> On 11/17/20 12:08 AM, Khem Raj wrote:
>>
>> On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
>> lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
>> wrote:
>>
>> Hi all,
>>
>>
>> I have been spinning my wheels for two days trying to discover how to
>> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
>> on the CM3 and it inits the MMC1 and its pins just fine. I can
>> read/write to my SD card from it etc. However, when I build yocto it
>> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
>> I have tried changing the device tree as described here:
>>
>> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
>>
>> That compiles and add the .dtbo to my build, but still the GPIOS are not
>> set to MMC1 mode.
>>
>> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
>> Pinmux settings per pin
>> Format: pin (name): mux_owner gpio_owner hog?
>> ....
>>
>> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>>
>> .....
>>
>> I have looked at:
>>
>> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
>>
>>
>> Any ideas of where to look next to turn on the sdio would be appreciated!
>>
>>
>> what does /boot/config.txt look like on raspbian and yocto built images
>>
>> Chuck
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [yocto] Raspberry PI enabling MMC1
2020-11-19 4:32 ` chuck kamas
2020-11-20 12:22 ` Erik Boto
@ 2020-11-20 12:22 ` Erik Boto
1 sibling, 0 replies; 14+ messages in thread
From: Erik Boto @ 2020-11-20 12:22 UTC (permalink / raw)
To: chuckkamas; +Cc: yocto
On Thu, Nov 19, 2020 at 7:21 PM chuck kamas via lists.yoctoproject.org
<chuckkamas=yahoo.com@lists.yoctoproject.org> wrote:
>
> Making some progress here!
>
>
> I added a compiled version of the attached device tree and now the mmc1 shows up in my yocto image! Yes! Now I need to find out the secret magic in that tree that I need to add...
If I'm not mistaken that should be done by appending
RPI_KERNEL_DEVICETREE_OVERLAYS. If you don't have your own custom
machine configuration where this could be added, try adding the
following to local.conf:
RPI_KERNEL_DEVICETREE_OVERLAYS_append = " overlays/sdio.dtbo "
Cheers,
Erik
>
>
> Chuck
>
>
> On 11/18/20 7:59 PM, chuck kamas via lists.yoctoproject.org wrote:
>
> Raj,
>
>
> I found out how to debug the boot process of the PI from:
>
> https://github.com/raspberrypi/documentation/blob/master/hardware/raspberrypi/bootmodes/README.md
>
> by turning on the boot code debug.
>
> sed -i -e "s/BOOT_UART=0/BOOT_UART=1/" bootcode.bin
>
>
> I found out that the sdio overlay does not exist!
>
> MESS:00:00:07.868162:0: dtdebug: Failed to open overlay file 'overlays/sdio.dtbo'
> MESS:00:00:07.874093:0: Failed to load overlay 'sdio'
> MESS:00:00:07.878881:0: brfs: File read: /mfs/sd/overlays/sdio.dtbo
> MESS:00:00:07.891322:0: brfs: File read: /mfs/sd/cmdline.txt
>
>
> So what am I missing on how to turn on the sdio on GPIO22-27? Is it not an overlay and instead a driver/other code/linux config that needs to be set?
>
>
> Chuck
>
>
> On 11/17/20 4:29 PM, chuck kamas via lists.yoctoproject.org wrote:
>
> Raj,
>
>
> Thanks for taking the time to respond. I thought of that too. My custom Yocto build has the line to turn on the sdio in it:
>
> dtoverlay=sdio,poll_once=off
>
>
> I have attached the entire file: config.txt.yocto
>
> However, the Rasbian image does not have any mention of the dtoverlay for the sdio. Curious. See config.txt attached.
>
>
> Thanks for the help!
>
> Chuck
>
>
> On 11/17/20 12:08 AM, Khem Raj wrote:
>
> On Mon, Nov 16, 2020 at 11:43 PM chuck kamas via
> lists.yoctoproject.org <chuckkamas=yahoo.com@lists.yoctoproject.org>
> wrote:
>
> Hi all,
>
>
> I have been spinning my wheels for two days trying to discover how to
> enable MMC1 on a CM3. This is the one on GPIO22-27. I can boot Rasbian
> on the CM3 and it inits the MMC1 and its pins just fine. I can
> read/write to my SD card from it etc. However, when I build yocto it
> leaves the GPIOS22-27 in gpio mode and does not set them to MMC1 mode.
> I have tried changing the device tree as described here:
>
> https://stackoverflow.com/questions/44702426/how-to-setup-an-own-device-tree-for-a-raspberrypi-in-yocto
>
> That compiles and add the .dtbo to my build, but still the GPIOS are not
> set to MMC1 mode.
>
> cat /sys/kernel/debug/pinctrl/*gpio*/pinmux-pins
> Pinmux settings per pin
> Format: pin (name): mux_owner gpio_owner hog?
> ....
>
> pin 22 (gpio22): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> pin 23 (gpio23): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> pin 24 (gpio24): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> pin 25 (gpio25): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> pin 26 (gpio26): (MUX UNCLAIMED) (GPIO UNCLAIMED)
> pin 27 (gpio27): (MUX UNCLAIMED) (GPIO UNCLAIMED)
>
> .....
>
> I have looked at:
>
> https://ralimtek.com/raspberry%20pi/electronics/software/raspberry_pi_secondary_sd_card/
>
>
> Any ideas of where to look next to turn on the sdio would be appreciated!
>
>
> what does /boot/config.txt look like on raspbian and yocto built images
>
> Chuck
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
^ permalink raw reply [flat|nested] 14+ messages in thread