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DESK-MX8M-L/Deployment/Customizing the splash screen

2,329 bytes removed, 14:26, 17 February 2022
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* 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 ====
 
''TBD: replace commands with SOC's one''
 
===== U-Boot variables =====
 
<pre>
loadsplash=run spi_loadsplash
spi_loadsplash=sf probe; sf read ${splashimage} 0x800000 ${splashsize}
splashfile=splash_image.bmp
splashimage=0x20000002
splashpos=m,m
splashsize=0x400000
loadsplashfile=tftpboot ${loadaddr} axel/${splashfile}
spi_updatesplash=sf probe; sf erase 0x800000 +${filesize}; sf write ${loadaddr} 0x800000 ${filesize}
</pre>
 
===== Commands =====
 
The following commands are used to store in NOR SPI flash a BMP image loaded via tftp:
 
<pre>
run loadsplashfile
run spi_updatesplash
</pre>
 
==== Splash image in NAND flash ====
 
''TBD: replace commands with SOC's one''
 
===== U-Boot variables =====
 
<pre>
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}
</pre>
 
Please note that the NAND mtd partition for the splash image ('''nand-splash''') is defined using the <code>mtdparts</code> parameter, and then referenced by the nand {erase,read,write} commands.
 
===== Commands =====
 
The following commands are used to store in NAND flash a BMP image loaded via tftp:
 
<pre>
run loadsplashfile
run nand_updatesplash
</pre>
 
==== Splash image in eMMC ====
 
''TBD: replace commands with SOC's one''
===== U-Boot variables =====
mmc_loadsplash=ext4load mmc ${mmcdev}:1 ${loadaddr} ${splashfile}; cp.b ${loadaddr} ${splashimage} ${filesize}
splashfile=splash_image.bmp
splashimage=0x20000002splashpos=m,msplashsize=0x4000000x50000000
</pre>
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[[Category:ORCAMITO 8M Mini]]
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