Difference between revisions of "DESK-MX6-L/Deployment/Customizing the splash screen"
(Created page with "<section begin=History/> {| style="border-collapse:collapse; " !colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History |- !style="border-le...") |
(→U-Boot variables) |
||
| Line 38: | Line 38: | ||
<pre> | <pre> | ||
loadsplash=run spi_loadsplash | loadsplash=run spi_loadsplash | ||
| − | spi_loadsplash=sf probe; sf read ${splashimage} | + | spi_loadsplash=sf probe; sf read ${splashimage} 0xA00000 ${splashsize} |
splashfile=splash_image.bmp | splashfile=splash_image.bmp | ||
splashimage=0x20000002 | splashimage=0x20000002 | ||
| Line 44: | Line 44: | ||
splashsize=0x400000 | splashsize=0x400000 | ||
loadsplashfile=tftpboot ${loadaddr} axel/${splashfile} | loadsplashfile=tftpboot ${loadaddr} axel/${splashfile} | ||
| − | spi_updatesplash=sf probe; sf erase | + | spi_updatesplash=sf probe; sf erase 0xA00000 +${filesize}; sf write ${loadaddr} 0xA00000 ${filesize} |
</pre> | </pre> | ||
Revision as of 07:54, 12 October 2020
| HOME | SOMs | SBCs | ToloMEO Embedded Assistant |  GET A QUOTE
|
 ONLINE HELPDESK
|
| Roadmap | IoT Services | ML/AI services | Embedded Design Services |
| History | |||
|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Oct 2020 | New documentation layout | |
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)
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:8M(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
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
