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From: Fabio Estevam <festevam@denx.de>
To: Tudor Ambarus <tudor.ambarus@linaro.org>
Cc: michael@walle.cc, takahiro.kuwano@infineon.com,
	pratyush@kernel.org, linux-mtd@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, bacem.daassi@infineon.com,
	miquel.raynal@bootlin.com, richard@nod.at
Subject: Re: [PATCH v2 2/6] mtd: spi-nor: add erase die (chip) capability
Date: Thu, 02 Nov 2023 13:43:00 -0300	[thread overview]
Message-ID: <5c48f93a9dd9b2bdc1874dd4eebbf5bb@denx.de> (raw)
In-Reply-To: <e3901646-c918-426f-b219-e1670dc1e854@linaro.org>

Hi Tudor,

On 01/11/2023 14:27, Tudor Ambarus wrote:

> Thanks, Fabio. I can't tell what's happening and it's getting late 
> here.
> Die erase does not execute if either of the status register BP bits are
> set to 1 (some sectors are locked), but that shouldn't be the case I
> guess as you could erase the entire flash before. So maybe dump SR/FSR

Correct, I could erase the entire flash before.

> before and after the chip erase op. Other idea is to dump the 
> spi_mem_op

SR is the same before and after the chip erase operation.

I haven't dumped FSR as I didn't find an easy way to do it from the 
core.

> fields, after spi_nor_spimem_setup_op() is called, maybe I got 
> something
> wrong there, but on a short look it seems fine.
> 
> I'll re-read this tomorrow. Cheers,

Not sure if it helps to give some ideas, but there was an old submission
for die erase support:

http://www.infradead.org/pipermail/linux-mtd/2016-October/069960.html

http://www.infradead.org/pipermail/linux-mtd/2016-October/069961.html

http://www.infradead.org/pipermail/linux-mtd/2016-October/069959.html

Thanks for your help.

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  reply	other threads:[~2023-11-02 16:43 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-01 14:58 [PATCH v2 0/6] mtd: spi-nor: introduce die erase Tudor Ambarus
2023-11-01 14:58 ` [PATCH v2 1/6] mtd: spi-nor: use kernel sized types instead of c99 types Tudor Ambarus
2023-11-01 14:58 ` [PATCH v2 2/6] mtd: spi-nor: add erase die (chip) capability Tudor Ambarus
2023-11-01 16:04   ` Tudor Ambarus
2023-11-01 16:17     ` Fabio Estevam
2023-11-01 17:27       ` Tudor Ambarus
2023-11-02 16:43         ` Fabio Estevam [this message]
2023-11-02 17:36           ` Tudor Ambarus
2023-11-02 17:40             ` Fabio Estevam
2023-11-02 17:47               ` Tudor Ambarus
2023-11-02 17:54                 ` Tudor Ambarus
2023-11-02 17:59                   ` Tudor Ambarus
2023-11-02 18:01                     ` Fabio Estevam
2023-11-02 18:21                       ` Tudor Ambarus
2023-11-02 18:33                         ` Fabio Estevam
2023-11-02 18:46                           ` Tudor Ambarus
2023-11-02 18:56                             ` Tudor Ambarus
2023-11-02 21:42                               ` Fabio Estevam
2023-11-03 11:47                                 ` Tudor Ambarus
2023-11-03 12:30                                   ` Fabio Estevam
2023-11-03 12:53                                     ` Fabio Estevam
2023-11-03 13:26                                       ` Tudor Ambarus
2023-11-03 13:37                                         ` Fabio Estevam
2023-11-03 13:48                                           ` Tudor Ambarus
2023-11-03 14:16                                             ` Fabio Estevam
2023-11-03 14:37                                               ` Tudor Ambarus
2023-11-03 14:58                                                 ` Fabio Estevam
2023-11-06 14:24                                                   ` Tudor Ambarus
2023-11-06  9:34                                             ` Michael Walle
2023-11-06 14:23                                               ` Tudor Ambarus
2023-11-06 14:56                                                 ` Tudor Ambarus
2023-11-09  9:09                                                 ` Michael Walle
2023-11-15  7:06                                                   ` Tudor Ambarus
2023-11-08  8:06                             ` Takahiro Kuwano
2023-11-08  8:54                               ` Tudor Ambarus
2023-11-01 14:58 ` [PATCH v2 3/6] mtd: spi-nor: spansion: enable die erase for multi die flashes Tudor Ambarus
2023-11-01 14:58 ` [PATCH v2 4/6] mtd: spi-nor: micron-st: " Tudor Ambarus
2023-11-01 14:58 ` [PATCH v2 5/6] mtd: spi-nor: remove NO_CHIP_ERASE flag Tudor Ambarus
2023-11-01 14:58 ` [PATCH v2 6/6] mtd: spi-nor: micron-st: Add support for mt25qu01g Tudor Ambarus
2023-11-01 15:54 ` [PATCH v2 0/6] mtd: spi-nor: introduce die erase Fabio Estevam
2023-11-15  6:10 ` Re (subset): " Tudor Ambarus

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