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path: root/drivers/memory/mvebu-devbus.c
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* memory: remove MODULE_LICENSE in non-modulesNick Alcock2023-03-091-1/+0
| | | | | | | | | | | | | | | | | | Since commit 8b41fc4454e3 ("kbuild: create modules.builtin without Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations are used to identify modules. As a consequence, uses of the macro in non-modules will cause modprobe to misidentify their containing object file as a module when it is not (false positives), and modprobe might succeed rather than failing with a suitable error message. So remove it in the files in this commit, none of which can be built as modules. Signed-off-by: Nick Alcock <nick.alcock@oracle.com> Suggested-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com> Link: https://lore.kernel.org/r/20230308202117.426808-2-nick.alcock@oracle.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
* memory: mvebu-devbus: Fix missing clk_disable_unprepare in mvebu_devbus_probe()Gaosheng Cui2022-12-271-2/+1
| | | | | | | | | | | The clk_disable_unprepare() should be called in the error handling of devbus_get_timing_params() and of_platform_populate(), fix it by replacing devm_clk_get and clk_prepare_enable by devm_clk_get_enabled. Fixes: e81b6abebc87 ("memory: add a driver for atmel ram controllers") Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com> Link: https://lore.kernel.org/r/20221126044911.7226-1-cuigaosheng1@huawei.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
* memory: mvebu-devbus: Align with open parenthesisKrzysztof Kozlowski2020-07-271-7/+7
| | | | | | | The line continuation contained spaces but still failed to properly align with open parenthesis. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
* memory: mvebu-devbus: Add missing braces to all arms of if statementKrzysztof Kozlowski2020-07-271-3/+3
| | | | | | | Add missing braces to all arms of if statement to align with coding convention. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
* memory: mvebu-devbus: convert to devm_platform_ioremap_resourceYangtao Li2020-01-081-3/+1
| | | | | | | Use devm_platform_ioremap_resource() to simplify code. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 340Thomas Gleixner2019-06-051-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 15 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000437.052642892@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* memory: Convert to using %pOF instead of full_nameRob Herring2017-08-161-6/+6
| | | | | | | | | | | | | | | | Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Roger Quadros <rogerq@ti.com> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* memory: drop owner assignment from platform_driversWolfram Sang2014-10-201-1/+0
| | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* memory: mvebu-devbus: add a devbus, keep-config propertyThomas Petazzoni2014-04-291-9/+11
| | | | | | | | | | | | | | | | | | | | | | | | Currently, the mvebu-devbus Device Tree binding makes defining the timing parameters mandatory. However, in practice, when converting Orion5x platforms to the Device Tree, we may not necessarily have easy access to the hardware platforms to fetch those values which were not defined in old-style board files: all these platforms rely on the bootloader setting the timing parameters correctly. In order to facilitate the migration to the Device Tree of this platform, this commit relaxes the mvebu-devbus Device Tree binding by introducing a 'devbus,keep-config' boolean property, which, if defined, will ignore all timing parameters passed in the Device Tree, and simply rely on the timing values already defined by the bootloader. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Link: https://lkml.kernel.org/r/1398202002-28530-10-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* memory: mvebu-devbus: add Orion5x supportThomas Petazzoni2014-04-291-21/+86
| | | | | | | | | | | | | | | | | | | | This commit adds support for the Orion5x family of Marvell processors into the mvebu-devbus driver. It differs from the already supported Armada 370/XP by: * Having a single register (instead of two) for doing all the timing configuration. * Having a few less timing configuration parameters. For this reason, a separate compatible string "marvell,orion-devbus" is introduced. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Link: https://lkml.kernel.org/r/1398202002-28530-9-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* memory: mvebu-devbus: split functionsThomas Petazzoni2014-04-291-39/+51
| | | | | | | | | | | | | | | | | The mvebu-devbus driver currently only supports the Armada 370/XP family, but it can also cover the Orion5x family. However, the Orion5x family has a different organization of the registers. Therefore, in preparation to the introduction of Orion5x support, we separate into two functions the code that 1/ retrieves the timing parameters from the Device Tree and 2/ applies those timings parameters into the hardware registers. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Link: https://lkml.kernel.org/r/1398202002-28530-8-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* memory: mvebu-devbus: use _SHIFT suffixes instead of _BITThomas Petazzoni2014-04-291-18/+18
| | | | | | | | | | | | | As noted by Sebastian Hesselbarth, the definitions in mvebu-devbus.c are not bit definition, but rather shift values, so a _SHIFT prefix would make more sense. This commit therefore replaces the *_BIT definitions by *_SHIFT definitions. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Link: https://lkml.kernel.org/r/1398202002-28530-7-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* memory: mvebu-devbus: use ARMADA_ prefix in definesThomas Petazzoni2014-04-291-24/+24
| | | | | | | | | | | | | | The mvebu-devbus driver currently only supports the Armada 370/XP family, but it can also cover the Orion5x family. However, the Orion5x family has a different organization of the register. Therefore, in preparation to the introduction of Orion5x support, we rename the Armada 370/XP specific definitions to have an ARMADA_ prefix. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Link: https://lkml.kernel.org/r/1398202002-28530-6-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* memory: mvebu-devbus: fix the conversion of the bus widthThomas Petazzoni2014-04-171-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the Armada 370 and Armada XP datasheets, the part of the Device Bus register that configure the bus width should contain 0 for a 8 bits bus width, and 1 for a 16 bits bus width (other values are unsupported/reserved). However, the current conversion done in the driver to convert from a bus width in bits to the value expected by the register leads to setting the register to 1 for a 8 bits bus, and 2 for a 16 bits bus. This mistake was compensated by a mistake in the existing Device Tree files for Armada 370/XP platforms: they were declaring a 8 bits bus width, while the hardware in fact uses a 16 bits bus width. This commit fixes that by adjusting the conversion logic. This patch fixes a bug that was introduced in 3edad321b1bd2e6c8b5f38146c115c8982438f06 ('drivers: memory: Introduce Marvell EBU Device Bus driver'), which was merged in v3.11. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Link: https://lkml.kernel.org/r/1397489361-5833-2-git-send-email-thomas.petazzoni@free-electrons.com Fixes: 3edad321b1bd ('drivers: memory: Introduce Marvell EBU Device Bus driver') Cc: stable@vger.kernel.org # v3.11+ Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* memory: mvebu-devbus: Remove unused variableEzequiel Garcia2013-08-121-8/+0
| | | | | | | | | | | | | | This variable is not being used anywhere and it's only forgotten garbage that should have been removed in the previous commit: commit 9b6e4c0a58e24c28bd757c9365824a37e80b751c Author: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Date: Fri Jul 26 10:17:38 2013 -0300 memory: mvebu-devbus: Remove address decoding window workaround Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* memory: mvebu-devbus: Remove address decoding window workaroundEzequiel Garcia2013-08-061-62/+2
| | | | | | | | | | | | | Now that mbus device tree binding has been introduced, remove the address decoding window management from this driver. A suitable 'ranges' entry should be added to the devbus-compatible node in the device tree, as described by the mbus binding documentation. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Tested-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* drivers: memory: Introduce Marvell EBU Device Bus driverEzequiel Garcia2013-05-211-0/+340
Marvell EBU SoCs such as Armada 370/XP, Orion5x (88f5xxx) and Discovery (mv78xx0) supports a Device Bus controller to access several kinds of memories and I/O devices (NOR, NAND, SRAM, FPGA). This commit adds a driver to handle this controller. So far only Armada 370, Armada XP and Discovery SoCs are supported. The driver must be registered through a device tree node; as explained in the binding document. For each child node in the device tree, this driver will: * set timing parameters * register a child device * setup an address decoding window, using the mbus driver Keep in mind the address decoding window setup is only a temporary hack. This code will be removed from this devbus driver as soon as a proper device tree binding for the mbus driver is added. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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