]> git.dujemihanovic.xyz Git - u-boot.git/commit
arm64: zynqmp: Add 'silabs, skip-recall' to all si570 clk nodes
authorSaeed Nowshadi <saeed.nowshadi@amd.com>
Thu, 25 Jan 2024 08:07:58 +0000 (09:07 +0100)
committerMichal Simek <michal.simek@amd.com>
Mon, 12 Feb 2024 08:28:32 +0000 (09:28 +0100)
commitcbd87dae91b41db4685b18a53739bd8cd54e79f5
treee4031af5d8138adca5d779dbec8cd6e71f028158
parent98f7bf5da4c1669f07ab3b6a5eca03a3930df004
arm64: zynqmp: Add 'silabs, skip-recall' to all si570 clk nodes

Without 'silabs,skip-recall' property, the driver on System Controller
re-calibrates the output clock frequency at probe() time based on the NVRAM
setting.  This re-calibration causes a glitch on the output clock.  At
power-on, Versal is also booting and expecting a glitch-free clock for
its correct operation.  System Controller should skip the re-calibration
step to prevent any clock instability for Versal.

Signed-off-by: Saeed Nowshadi <saeed.nowshadi@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/bbb2322c94503f0e6b369c60312b7546500fad95.1706170068.git.michal.simek@amd.com
arch/arm/dts/zynqmp-e-a2197-00-revA.dts