linux-kernel - [PATCH v3 0/4] arm: aspeed: Add eSPI support

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Message-ID: <20210826061623.6352-1-chiawei_wang@aspeedtech.com>
Date:   Thu, 26 Aug 2021 14:16:19 +0800
From:   Chia-Wei Wang <chiawei_wang@...eedtech.com>
To:     <joel@....id.au>, <robh+dt@...nel.org>, <andrew@...id.au>,
        <linux-aspeed@...ts.ozlabs.org>, <openbmc@...ts.ozlabs.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH v3 0/4] arm: aspeed: Add eSPI support

This patch series add the driver support for the eSPI controller
of Aspeed 5/6th generation SoCs. This controller is a slave device
communicating with a master over Enhanced Serial Peripheral Interface (eSPI).
It supports all of the 4 eSPI channels, namely peripheral, virtual wire,
out-of-band, and flash, and operates at max frequency of 66MHz.

v3:
 - remove the redundant patch "clk: aspeed: Add eSPI reset bit"
 - fix missing header inclusion reported by test bot
 - fix dt-bindings error reported by yamllint

v2:
 - remove irqchip implementation
 - merge per-channel drivers into single one to avoid the racing issue
   among eSPI handshake process and driver probing.

Chia-Wei Wang (4):
  dt-bindings: aspeed: Add eSPI controller
  MAINTAINER: Add ASPEED eSPI driver entry
  soc: aspeed: Add eSPI driver
  ARM: dts: aspeed: Add eSPI node

 .../devicetree/bindings/soc/aspeed/espi.yaml  | 157 +++++
 MAINTAINERS                                   |   9 +
 arch/arm/boot/dts/aspeed-g6.dtsi              |  17 +
 drivers/soc/aspeed/Kconfig                    |  11 +
 drivers/soc/aspeed/Makefile                   |   1 +
 drivers/soc/aspeed/aspeed-espi-ctrl.c         | 205 ++++++
 drivers/soc/aspeed/aspeed-espi-ctrl.h         | 304 +++++++++
 drivers/soc/aspeed/aspeed-espi-flash.h        | 380 +++++++++++
 drivers/soc/aspeed/aspeed-espi-ioc.h          | 153 +++++
 drivers/soc/aspeed/aspeed-espi-oob.h          | 611 ++++++++++++++++++
 drivers/soc/aspeed/aspeed-espi-perif.h        | 539 +++++++++++++++
 drivers/soc/aspeed/aspeed-espi-vw.h           | 142 ++++
 12 files changed, 2529 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/aspeed/espi.yaml
 create mode 100644 drivers/soc/aspeed/aspeed-espi-ctrl.c
 create mode 100644 drivers/soc/aspeed/aspeed-espi-ctrl.h
 create mode 100644 drivers/soc/aspeed/aspeed-espi-flash.h
 create mode 100644 drivers/soc/aspeed/aspeed-espi-ioc.h
 create mode 100644 drivers/soc/aspeed/aspeed-espi-oob.h
 create mode 100644 drivers/soc/aspeed/aspeed-espi-perif.h
 create mode 100644 drivers/soc/aspeed/aspeed-espi-vw.h

-- 
2.17.1