From: Fedor Ross <[email protected]> > On 11/27/25 6:50 PM, Fedor Ross wrote: >> For silicon revision A1, the USB instance number for USB1 is 3 and for >> USB2 it is 4. This changed for revision B0 where the USB instance number >> for USB1 is 0 and for USB2 it is 1, which is the intended instance >> number. Select the correct numbering according to the selected revision >> in the defconfig. The config for the B0 revision is IMX95 and for A1 it >> is IMX95_A0. >> >> This patch is based on the information provided by: >> "AN14750 Migration Guide from i.MX 95 A1 to B0; Rev. 1.0" . >> >> Signed-off-by: Fedor Ross <[email protected]> >> --- >> arch/arm/mach-imx/imx9/scmi/soc.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/arch/arm/mach-imx/imx9/scmi/soc.c >> b/arch/arm/mach-imx/imx9/scmi/soc.c >> index dbaa19a9e6e..354df7d88a4 100644 >> --- a/arch/arm/mach-imx/imx9/scmi/soc.c >> +++ b/arch/arm/mach-imx/imx9/scmi/soc.c >> @@ -921,7 +921,7 @@ enum boot_device get_boot_device(void) >> break; >> case BT_DEV_TYPE_USB: >> boot_dev = boot_instance + USB_BOOT; >> - if (IS_ENABLED(CONFIG_IMX95)) >> + if (IS_ENABLED(CONFIG_IMX95_A0)) > > It seems this can also be made even more generic: > > -if (IS_ENABLED(CONFIG_IMX95)) > +if (is_imx95() && (soc_rev() < CHIP_REV_2_0))
Yes, that's better. Thank you. Considering that the support for IMX95_A0 might be dropped sooner or later, it also seems to be more future-proof. Best regards, Fedor
