From 3f70cb444b753761799c3c7991468885458be110 Mon Sep 17 00:00:00 2001 From: Judith Mendez Date: Fri, 23 May 2025 11:11:43 -0500 Subject: [PATCH] fix: PRU: Add warning for am62 variants not supporting PRU-SS The common/PRU-ICSS/Overview section describes am62 SoCs support PRU-SS, but failed to mention that automotive variants do not support this module, so add a warning for this and mention AM62 LP SK does not support PRU-SS. Signed-off-by: Judith Mendez --- source/common/PRU-ICSS/Overview.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/source/common/PRU-ICSS/Overview.rst b/source/common/PRU-ICSS/Overview.rst index de3c2543e..0a644dc73 100644 --- a/source/common/PRU-ICSS/Overview.rst +++ b/source/common/PRU-ICSS/Overview.rst @@ -46,6 +46,13 @@ MDIO signals are not pinned out) are not supported. Devices offering the PRU-SS capability include AM62x. +.. warning:: + + While am62 SoC supports PRU-SS, the automotive variants of this SoC do not and therefore + `AM62 LP SK `__ does not support PRU-SS. + PRU-SS is now disabled in u-boot source: :file:`arch/arm/mach-k3/am62x/am625_fdt.c` + and might not be explicitly disabled with `status = "disabled"` in Linux kernel DT. + | The PRU subsystem hardware can be used for two categories of applications: