mirrors/u-boot
1
0
Fork 0
mirror of https://source.denx.de/u-boot/u-boot.git synced 2025-12-19 16:31:27 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

board: phytec: phycore-imx93: Add VOLT_LOW_DRIVE frequency fixup

Browse Source 
For phyCORE-i.MX93 SoMs with i.MX93 parts running in VOLT_LOW_DRIVE mode
(SoCs with speed grade fuse set to 900 MHz) reduce usdhc clocks from 400
MHz to 266 MHz. Do this in board code since global imx9 board_fix_fdt()
is not used in case of phycore-imx93 board since commit d3b9b7996889
("board: phytec: imx93: Add eeprom-based hardware introspection").

While at it, add a note to ft_board_setup() function to inform that
fixup for Linux device-tree is taken care by ft_system_setup() in imx9
global arch/arm/mach-imx/imx9/soc.c implementation.

Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
This commit is contained in:
Primoz Fiser 2025-08-07 15:13:54 +02:00 committed by Fabio Estevam
parent 442e752854
commit b6e2cfca1a
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
board/phytec/phycore_imx93/phycore-imx93.c
View File

@ -79,6 +79,10 @@ int board_fix_fdt(void *blob)
emmc_fixup(blob, &data);
/* Update dtb clocks for low drive mode */
if (is_voltage_mode(VOLT_LOW_DRIVE))
low_drive_freq_update(blob);
return 0;
}
@ -86,5 +90,10 @@ int ft_board_setup(void *blob, struct bd_info *bd)
{
emmc_fixup(blob, NULL);
/**
* NOTE: VOLT_LOW_DRIVE fixup is done by the ft_system_setup()
* in arch/arm/mach-imx/imx9/soc.c for Linux device-tree.
*/
return 0;
}