Difference between revisions of "DESK-MX6-L/Deployment/Customizing the splash screen"
m (U0009 moved page AXEL Lite SOM/DESK-MX6-L/Deployment/Customizing the splash screen to DESK-MX6-L/Deployment/Customizing the splash screen: modifica gestione DESK come prodotto a se stante) |
(Minor updates for DESK-MX6-L release) |
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| − | !colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History | + | ! colspan="4" style="width:100%; text-align:left" ; border-bottom:solid 2px #ededed" |History |
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| − | !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Notes | + | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" |Notes |
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| − | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Oct 2020 | + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |Oct 2020 |
| − | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|New documentation layout | + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |New documentation layout |
| + | |- | ||
| + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |3.0.0 | ||
| + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |Feb 2022 | ||
| + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |3.0.0 DESK release | ||
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| − | <section begin=Body/> | + | <section begin="Body" /> |
==Customizing the splash screen== | ==Customizing the splash screen== | ||
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* loadsplash: comand for loading the BMP image from the storage device (e.g flash memory) to RAM. This command is automatically run by U-Boot at startup | * loadsplash: comand for loading the BMP image from the storage device (e.g flash memory) to RAM. This command is automatically run by U-Boot at startup | ||
* splashpos: image position (eg: splashpos=m,m, for centering the image) | * splashpos: image position (eg: splashpos=m,m, for centering the image) | ||
| + | Please note that loadsplash command will differ depends on used storage device. | ||
==== Splash image in NOR SPI flash ==== | ==== Splash image in NOR SPI flash ==== | ||
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mtdparts=mtdparts=gpmi-nand:2M(nand-SPL),6M(nand-uboot),1M(nand-env1),1M(nand-env2),1M(nand-fdt),1M(nand-spare),8M(nand-kernel),4M(nand-splash),-(nand-ubi) | mtdparts=mtdparts=gpmi-nand:2M(nand-SPL),6M(nand-uboot),1M(nand-env1),1M(nand-env2),1M(nand-fdt),1M(nand-spare),8M(nand-kernel),4M(nand-splash),-(nand-ubi) | ||
loadsplash=run nand_loadsplash | loadsplash=run nand_loadsplash | ||
| − | nand_loadsplash=nand read ${splashimage} nand-splash | + | nand_loadsplash=nand read ${splashimage} nand-splash ${splashsize} |
splashfile=splash_image.bmp | splashfile=splash_image.bmp | ||
splashimage=0x20000002 | splashimage=0x20000002 | ||
Revision as of 10:34, 25 February 2022
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| History | |||
|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Oct 2020 | New documentation layout | |
| 3.0.0 | Feb 2022 | 3.0.0 DESK release | |
Contents
Customizing the splash screen[edit | edit source]
Resources[edit | edit source]
For further details on splash screen support in U-Boot, please refer to:
Instructions[edit | edit source]
The following U-Boot environment variables are required:
- splashimage: RAM address where the BMP image is loaded. Please note that it must be a 32-bit aligned address with a 0x2 offset (eg: 0x20000002)
- loadsplash: comand for loading the BMP image from the storage device (e.g flash memory) to RAM. This command is automatically run by U-Boot at startup
- splashpos: image position (eg: splashpos=m,m, for centering the image)
Please note that loadsplash command will differ depends on used storage device.
Splash image in NOR SPI flash[edit | edit source]
U-Boot variables[edit | edit source]
loadsplash=run spi_loadsplash
spi_loadsplash=sf probe; sf read ${splashimage} 0xA00000 ${splashsize}
splashfile=splash_image.bmp
splashimage=0x20000002
splashpos=m,m
splashsize=0x400000
loadsplashfile=tftpboot ${loadaddr} axel/${splashfile}
spi_updatesplash=sf probe; sf erase 0xA00000 +${filesize}; sf write ${loadaddr} 0xA00000 ${filesize}
Commands[edit | edit source]
The following commands are used to store in NOR SPI flash a BMP image loaded via tftp:
run loadsplashfile run spi_updatesplash
Splash image in NAND flash[edit | edit source]
U-Boot variables[edit | edit source]
mtdparts=mtdparts=gpmi-nand:2M(nand-SPL),6M(nand-uboot),1M(nand-env1),1M(nand-env2),1M(nand-fdt),1M(nand-spare),8M(nand-kernel),4M(nand-splash),-(nand-ubi)
loadsplash=run nand_loadsplash
nand_loadsplash=nand read ${splashimage} nand-splash ${splashsize}
splashfile=splash_image.bmp
splashimage=0x20000002
splashpos=m,m
splashsize=0x400000
loadsplashfile=tftpboot ${loadaddr} axel/${splashfile}
nand_updatesplash=nand erase.part nand-splash; nand write ${loadaddr} nand-splash ${filesize}
Please note that the NAND mtd partition for the splash image (nand-splash) is defined using the mtdparts parameter, and then referenced by the nand {erase,read,write} commands.
Commands[edit | edit source]
The following commands are used to store in NAND flash a BMP image loaded via tftp:
run loadsplashfile run nand_updatesplash
Splash image in SD/eMMC[edit | edit source]
If an SD card or a eMMC device is used as boot device, the splashscreen image is directly loaded from the storage device.
U-Boot variables[edit | edit source]
In this example, the first partition - FAT format - is used directly reading the ${splashimage} BMP file.
loadsplash=run mmc_loadsplash
splashfile=splash_image.bmp
splashimage=0x20000002
mmc_loadsplash=fatload mmc ${mmcdev}:1 ${loadaddr} ${splashfile}; cp.b ${loadaddr} ${splashimage} ${filesize}
