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Message-Id: <20220619164935.1492823-1-mail@conchuod.ie>
Date: Sun, 19 Jun 2022 17:49:30 +0100
From: Conor Dooley <mail@...chuod.ie>
To: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Conor Dooley <conor.dooley@...rochip.com>,
Philipp Zabel <p.zabel@...gutronix.de>,
Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Daire McNamara <daire.mcnamara@...rochip.com>,
linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-riscv@...ts.infradead.org
Subject: [RFC 0/6] PolarFire SoC Reset controller
From: Conor Dooley <conor.dooley@...rochip.com>
Hi Stephen (& Philipp),
I gave the aux bus approach to the clock->reset driver combo a go.
Could you take a quick look and lmk if it meets your expectations
for that approach? There weren't too many aux bus drivers to "take
inspiration from" so I implemented this based on drivers/peci/cpu.c
If it all looks sane at first glance, I'll tidy things up a little
and submit.
@Geert the prior "RFC" you said you saw issues with the ethernet?
I implemented the reset stuff for the macs and it looks to be to
be working fine - but I did not do any meaninful testing with
CONFIG_PM=y.
Thanks,
Conor.
(Since it's just the clk -> reset aux bus interface I care about
here, I left the net/dt maintainers off the CC.)*
Conor Dooley (6):
dt-bindings: clk: microchip: mpfs: add reset controller support
dt-bindings: net: cdns,macb: document polarfire soc's macb
clk: microchip: mpfs: add reset controller
reset: add polarfire soc reset support
net: macb: add polarfire soc reset support
riscv: dts: microchip: add mpfs specific macb reset support
.../bindings/clock/microchip,mpfs.yaml | 17 +-
.../devicetree/bindings/net/cdns,macb.yaml | 1 +
arch/riscv/boot/dts/microchip/mpfs.dtsi | 7 +-
drivers/clk/microchip/Kconfig | 1 +
drivers/clk/microchip/clk-mpfs.c | 118 +++++++++++--
drivers/net/ethernet/cadence/macb_main.c | 25 ++-
drivers/reset/Kconfig | 9 +
drivers/reset/Makefile | 2 +-
drivers/reset/reset-mpfs.c | 155 ++++++++++++++++++
include/soc/microchip/mpfs.h | 8 +
10 files changed, 320 insertions(+), 23 deletions(-)
create mode 100644 drivers/reset/reset-mpfs.c
base-commit: b13baccc3850ca8b8cccbf8ed9912dbaa0fdf7f3
--
2.36.1
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