tree f672c586e15f1d7564ff0656072671eb2752ea7f
parent e43a1c1e9da1ce1adac08bececb31b3dbcfe68e9
author Ahmad Fatoum <a.fatoum@pengutronix.de> 1705682503 +0100
committer Ahmad Fatoum <a.fatoum@pengutronix.de> 1706027108 +0100

fix(imx8mp): uncondtionally enable only the USB power domain

The i.MX8MP exists in multiple SKUs, some of which lack the NPU or VPU.
Yet, we unconditionally enable NPU and VPU power domains in upstream
TF-A, causing it to hang on such SoCs, unless patched.

Enabling all power domains is an idiosyncrasy of the i.MX8MP support,
which we don't have on i.MX8MQ, i.MX8MM or i.MX8MN. Therefore let's drop
unconditional powering on of all power domains.

As only exception, we will keep enabling the USB power domains. These
are enabled in the BootROM if booting over SDPS and boot firmware may
expect them to be enabled for non-SDPS recovery too. As USB is
available unconditionally on the current i.MX8MP variants, this is
deemed acceptable and reduces the chance of breaking existing systems.

Fixes: a775ef25c312 ("plat: imx8mp: Add the basic support for i.MX8MP")
Change-Id: Idc6e8f770d240f4d929dffa91f9ccf8c476c6c12
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>