[PATCH 00/16] mtd: spi-nor: aspeed: AST2600 support and extensions

From: "Cédric Le Goater" <clg@kaod.org>
To: linux-mtd@lists.infradead.org,
	Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: "Mark Rutland" <mark.rutland@arm.com>,
	"Vignesh Raghavendra" <vigneshr@ti.com>,
	linux-aspeed@lists.ozlabs.org, "Andrew Jeffery" <andrew@aj.id.au>,
	"Richard Weinberger" <richard@nod.at>,
	"Marek Vasut" <marek.vasut@gmail.com>,
	"Joel Stanley" <joel@jms.id.au>,
	"Miquel Raynal" <miquel.raynal@bootlin.com>,
	"Brian Norris" <computersforpeace@gmail.com>,
	"David Woodhouse" <dwmw2@infradead.org>,
	linux-arm-kernel@lists.infradead.org,
	"Cédric Le Goater" <clg@kaod.org>
Subject: [PATCH 00/16] mtd: spi-nor: aspeed: AST2600 support and extensions
Date: Fri,  4 Oct 2019 13:59:03 +0200	[thread overview]
Message-ID: <20191004115919.20788-1-clg@kaod.org> (raw)

Hello,

This series first extends the support for the Aspeed AST2500 and
AST2400 SMC driver. It adds Dual Data support and read training giving
the best read settings for a given chip. Support for the new AST2600
SoC is added at the end.

I understand that a new spi_mem framework exists and I do have an
experimental driver using it. But unfortunately, it is difficult to
integrate the read training. The Aspeed constraints are not compatible
and i haven't had the time to extend the current framework.

This patchset has been in use for some time in the OpenBMC kernel on
these systems :

 * OpenPOWER Palmetto (AST2400)
 * Evaluation board (AST2500) 
 * OpenPOWER Witherspoon (AST2500)
 * OpenPOWER Romulus (AST2500)
 * OpenPOWER Zaius (AST2500)
   and many others

and it is now in use on these boards with the new SoC :

 * Evaluation board (AST2600) 
 * Tacoma board (AST2600) 

Thanks,

C.

Alexander Soldatov (1):
  mtd: spi-nor: fix options for mx66l51235f

Cédric Le Goater (15):
  mtd: spi-nor: aspeed: Use command mode for reads
  mtd: spi-nor: aspeed: Add support for SPI dual IO read mode
  mtd: spi-nor: aspeed: Link controller with the ahb clock
  mtd: spi-nor: aspeed: Add read training
  mtd: spi-nor: aspeed: Limit the maximum SPI frequency
  mtd: spi-nor: aspeed: Add support for the 4B opcodes
  mtd: spi-nor: Add support for w25q512jv
  mtd: spi-nor: aspeed: Introduce a field for the AHB physical address
  mtd: spi-nor: aspeed: Introduce segment operations
  dt-bindings: mtd: aspeed-smc: Add new comptatible for AST2600
  mtd: spi-nor: aspeed: Add initial support for the AST2600
  mtd: spi-nor: aspeed: Check for disabled segments on the AST2600
  mtd: spi-nor: aspeed: Introduce training operations per platform
  mtd: spi-nor: aspeed: Introduce a HCLK mask for training
  mtd: spi-nor: aspeed: Add read training support for the AST2600

 drivers/mtd/spi-nor/aspeed-smc.c              | 593 ++++++++++++++++--
 drivers/mtd/spi-nor/spi-nor.c                 |   5 +-
 .../devicetree/bindings/mtd/aspeed-smc.txt    |   2 +
 3 files changed, 551 insertions(+), 49 deletions(-)

-- 
2.21.0

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