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From: Tudor Ambarus <tudor.ambarus@linaro.org>
To: linux-aspeed@lists.ozlabs.org
Subject: [PATCH 4/9] mtd: devices: add AT24 eeprom support
Date: Mon, 01 Jul 2024 16:14:24 -0000	[thread overview]
Message-ID: <07b701a9-7b52-45b7-8dba-1c25d77cbf15@linaro.org> (raw)
In-Reply-To: <20240701-b4-v6-10-topic-usbc-tcpci-v1-4-3fd5f4a193cc@pengutronix.de>



On 7/1/24 2:53 PM, Marco Felsch wrote:
> EEPROMs can become quite large nowadays (>=64K). Exposing such devices
> as single device isn't always sufficient. There may be partitions which
> require different access permissions. Also write access always need to
> to verify the offset.
> 
> Port the current misc/eeprom/at24.c driver to the MTD framework since
> EEPROMs are memory-technology devices and the framework already supports

I was under the impression that MTD devices are tightly coupled by erase
blocks. But then we see MTD_NO_ERASE, so what are MTD devices after all?

> partitioning. This allow using of-paritions like we do for SPI-NOR
> devices already:

  reply	other threads:[~2024-07-01 16:14 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-01 14:15 [PATCH 0/9] AT24 EEPROM MTD Support Marco Felsch
2024-07-01 14:14 ` [PATCH 1/9] mtd: core: add nvmem_write support Marco Felsch
2024-07-01 14:14 ` [PATCH 7/9] MIPS: configs: convert to MTD_EEPROM_AT24 Marco Felsch
2024-07-01 14:15 ` [PATCH 3/9] mtd: add support to handle EEPROM devices Marco Felsch
2024-07-01 14:15 ` [PATCH 9/9] eeprom: at24: remove deprecated Kconfig symbol Marco Felsch
2024-07-02  8:57   ` Bartosz Golaszewski
2024-07-02  9:16     ` Marco Felsch
2024-07-01 14:15 ` [PATCH 8/9] LoongArch: convert to MTD_EEPROM_AT24 Marco Felsch
2024-07-01 14:15 ` [PATCH 5/9] ARM: defconfig: " Marco Felsch
2024-07-10 12:56   ` Arnd Bergmann
2024-07-10 13:00     ` Bartosz Golaszewski
2024-07-10 14:06       ` Arnd Bergmann
2024-07-01 14:15 ` [PATCH 6/9] powerpc: " Marco Felsch
2024-07-01 14:15 ` [PATCH 2/9] mtd: add mtd_is_master helper Marco Felsch
2024-07-01 16:14   ` Sergei Shtylyov
2024-07-02  8:39     ` Marco Felsch
2024-07-01 14:15 ` [PATCH 4/9] mtd: devices: add AT24 eeprom support Marco Felsch
2024-07-01 16:14   ` Tudor Ambarus [this message]
2024-07-02 13:42     ` Pratyush Yadav
2024-07-02 13:56       ` Maxime Ripard
2024-07-02 14:15         ` Pratyush Yadav
2024-07-02 14:34           ` Maxime Ripard
2024-07-08  7:05             ` Miquel Raynal
2024-07-09  9:24               ` Marco Felsch
2024-07-09  9:43                 ` Miquel Raynal
2024-07-09 10:39                   ` Marco Felsch
2024-07-17  8:20                     ` Miquel Raynal
2024-07-18  9:20                       ` Marco Felsch
2024-08-23 15:37                         ` Miquel Raynal
2024-08-23 16:24 ` [PATCH 0/9] AT24 EEPROM MTD Support Andy Shevchenko
2024-08-26  7:51   ` Marco Felsch
2024-08-26 10:32     ` Andy Shevchenko

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