| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20231012042834.6663-1-lukas.bulwahn@gmail.com>
Date: Thu, 12 Oct 2023 06:28:34 +0200
From: Lukas Bulwahn <lukas.bulwahn@...il.com>
To: Arnd Bergmann <arnd@...db.de>, Jean Delvare <jdelvare@...e.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Heiner Kallweit <hkallweit1@...il.com>
Cc: Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org,
kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: [PATCH] eeprom: remove doc and MAINTAINERS section after driver was removed
Commit 0113a99b8a75 ("eeprom: Remove deprecated legacy eeprom driver")
already removes the eeprom driver's code.
Remove also the eeprom driver's documentation and MAINTAINERS section.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@...il.com>
---
Greg, please pick this patch into your -next char and misc tree on top
of the commit above.
Documentation/misc-devices/eeprom.rst | 107 --------------------------
Documentation/misc-devices/index.rst | 1 -
MAINTAINERS | 6 --
3 files changed, 114 deletions(-)
delete mode 100644 Documentation/misc-devices/eeprom.rst
diff --git a/Documentation/misc-devices/eeprom.rst b/Documentation/misc-devices/eeprom.rst
deleted file mode 100644
index 008249675ccc..000000000000
--- a/Documentation/misc-devices/eeprom.rst
+++ /dev/null
@@ -1,107 +0,0 @@
-====================
-Kernel driver eeprom
-====================
-
-Supported chips:
-
- * Any EEPROM chip in the designated address range
-
- Prefix: 'eeprom'
-
- Addresses scanned: I2C 0x50 - 0x57
-
- Datasheets: Publicly available from:
-
- Atmel (www.atmel.com),
- Catalyst (www.catsemi.com),
- Fairchild (www.fairchildsemi.com),
- Microchip (www.microchip.com),
- Philips (www.semiconductor.philips.com),
- Rohm (www.rohm.com),
- ST (www.st.com),
- Xicor (www.xicor.com),
- and others.
-
- ========= ============= ============================================
- Chip Size (bits) Address
- ========= ============= ============================================
- 24C01 1K 0x50 (shadows at 0x51 - 0x57)
- 24C01A 1K 0x50 - 0x57 (Typical device on DIMMs)
- 24C02 2K 0x50 - 0x57
- 24C04 4K 0x50, 0x52, 0x54, 0x56
- (additional data at 0x51, 0x53, 0x55, 0x57)
- 24C08 8K 0x50, 0x54 (additional data at 0x51, 0x52,
- 0x53, 0x55, 0x56, 0x57)
- 24C16 16K 0x50 (additional data at 0x51 - 0x57)
- Sony 2K 0x57
-
- Atmel 34C02B 2K 0x50 - 0x57, SW write protect at 0x30-37
- Catalyst 34FC02 2K 0x50 - 0x57, SW write protect at 0x30-37
- Catalyst 34RC02 2K 0x50 - 0x57, SW write protect at 0x30-37
- Fairchild 34W02 2K 0x50 - 0x57, SW write protect at 0x30-37
- Microchip 24AA52 2K 0x50 - 0x57, SW write protect at 0x30-37
- ST M34C02 2K 0x50 - 0x57, SW write protect at 0x30-37
- ========= ============= ============================================
-
-
-Authors:
- - Frodo Looijaard <frodol@....nl>,
- - Philip Edelbrock <phil@...roedge.com>,
- - Jean Delvare <jdelvare@...e.de>,
- - Greg Kroah-Hartman <greg@...ah.com>,
- - IBM Corp.
-
-Description
------------
-
-This is a simple EEPROM module meant to enable reading the first 256 bytes
-of an EEPROM (on a SDRAM DIMM for example). However, it will access serial
-EEPROMs on any I2C adapter. The supported devices are generically called
-24Cxx, and are listed above; however the numbering for these
-industry-standard devices may vary by manufacturer.
-
-This module was a programming exercise to get used to the new project
-organization laid out by Frodo, but it should be at least completely
-effective for decoding the contents of EEPROMs on DIMMs.
-
-DIMMS will typically contain a 24C01A or 24C02, or the 34C02 variants.
-The other devices will not be found on a DIMM because they respond to more
-than one address.
-
-DDC Monitors may contain any device. Often a 24C01, which responds to all 8
-addresses, is found.
-
-Recent Sony Vaio laptops have an EEPROM at 0x57. We couldn't get the
-specification, so it is guess work and far from being complete.
-
-The Microchip 24AA52/24LCS52, ST M34C02, and others support an additional
-software write protect register at 0x30 - 0x37 (0x20 less than the memory
-location). The chip responds to "write quick" detection at this address but
-does not respond to byte reads. If this register is present, the lower 128
-bytes of the memory array are not write protected. Any byte data write to
-this address will write protect the memory array permanently, and the
-device will no longer respond at the 0x30-37 address. The eeprom driver
-does not support this register.
-
-Lacking functionality
----------------------
-
-* Full support for larger devices (24C04, 24C08, 24C16). These are not
- typically found on a PC. These devices will appear as separate devices at
- multiple addresses.
-
-* Support for really large devices (24C32, 24C64, 24C128, 24C256, 24C512).
- These devices require two-byte address fields and are not supported.
-
-* Enable Writing. Again, no technical reason why not, but making it easy
- to change the contents of the EEPROMs (on DIMMs anyway) also makes it easy
- to disable the DIMMs (potentially preventing the computer from booting)
- until the values are restored somehow.
-
-Use
----
-
-After inserting the module (and any other required SMBus/i2c modules), you
-should have some EEPROM directories in ``/sys/bus/i2c/devices/*`` of names such
-as "0-0050". Inside each of these is a series of files, the eeprom file
-contains the binary data from EEPROM.
diff --git a/Documentation/misc-devices/index.rst b/Documentation/misc-devices/index.rst
index ecc40fbbcfb8..7de16797987a 100644
--- a/Documentation/misc-devices/index.rst
+++ b/Documentation/misc-devices/index.rst
@@ -17,7 +17,6 @@ fit into other categories.
ad525x_dpot
apds990x
bh1770glc
- eeprom
c2port
dw-xdata-pcie
ibmvmc
diff --git a/MAINTAINERS b/MAINTAINERS
index ecdf3ab6f371..706769e04570 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12007,12 +12007,6 @@ F: drivers/leds/
F: include/dt-bindings/leds/
F: include/linux/leds.h
-LEGACY EEPROM DRIVER
-M: Jean Delvare <jdelvare@...e.com>
-S: Maintained
-F: Documentation/misc-devices/eeprom.rst
-F: drivers/misc/eeprom/eeprom.c
-
LEGO MINDSTORMS EV3
R: David Lechner <david@...hnology.com>
S: Maintained
--
2.17.1
Powered by blists - more mailing lists