linux-dev/arch/arm/mach-mxs, branch master

ARM: rework endianess selection

2022-04-08T15:20:54Z

Choosing big-endian vs little-endian kernels in Kconfig has not worked correctly since the introduction of CONFIG_ARCH_MULTIPLATFORM a long time ago. The problems is that CONFIG_BIG_ENDIAN depends on ARCH_SUPPORTS_BIG_ENDIAN, which can set by any one platform in the config, but would actually have to be supported by all of them. This was mostly ok for ARMv6/ARMv7 builds, since these are BE8 and tend to just work aside from problems in nonportable device drivers. For ARMv4/v5 machines, CONFIG_BIG_ENDIAN and CONFIG_ARCH_MULTIPLATFORM were never set together, so this was disabled on all those machines except for IXP4xx. As IXP4xx can now become part of ARCH_MULTIPLATFORM, it seems better to formalize this logic: all ARMv4/v5 platforms get an explicit dependency on being either big-endian (ixp4xx) or little-endian (the rest). We may want to fix ixp4xx in the future to support both, but it does not work in LE mode at the moment. For the ARMv6/v7 platforms, there are two ways this could be handled a) allow both modes only for platforms selecting 'ARCH_SUPPORTS_BIG_ENDIAN' today, but only LE mode for the others, given that these were added intentionally at some point. b) allow both modes everwhere, given that it was already possible to build that way by e.g. selecting ARCH_VIRT, and that the list is not an accurate reflection of which platforms may or may not work. Out of these, I picked b) because it seemed slighly more logical to me. Signed-off-by: Arnd Bergmann

ARM: mxs: Add serial number support for i.MX23, i.MX28 SoCs

2020-11-30T09:31:29Z

i.MX23 and i.MX28 SoCs unique identifiers are factory-programmed in On-Chip OTP memory. i.MX28's 64-bit unique id is in HW_OCOTP_OPS2:HW_OCOTP_OPS3 (see MCIMX28 Ref. Man., sec. 20.4.22-23). i.MX23 provides 32-bit long unique id in HW_OCOTP_OPS3. Though not clearly documented, there is a clue in sec. 35.9.3. The unique id is reported in /sys/devices/soc0/serial_number and in /proc/cpuinfo Signed-off-by: Ivan Zaentsev Suggested-by: Evgeny Boger Signed-off-by: Shawn Guo

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55Z

Based on 2 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 version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159

2019-05-30T18:26:37Z

Based on 1 normalized pattern(s): the code contained herein is licensed under the gnu general public license you may obtain a copy of the gnu general public license version 2 or later at the following locations http www opensource org licenses gpl license html http www gnu org copyleft gpl html extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 161 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.383790741@linutronix.de Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157

2019-05-30T18:26:37Z

Based on 3 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 either version 2 of the license or at your option any later version 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 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 either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] 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 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 either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46Z

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

ARM: mxs: constify platform_suspend_ops

2017-09-20T14:21:08Z

platform_suspend_ops are not supposed to change at runtime. Functions suspend_set_ops working with const platform_suspend_ops. So mark the non-const structs as const. Signed-off-by: Arvind Yadav Signed-off-by: Shawn Guo

ARM: mxs: add support for I2SE Duckbill 2 boards

2017-04-10T13:25:50Z

The Duckbill devices are small, pen-drive sized boards based on NXP's i.MX28 SoC. While the initial variants (Duckbill series) were equipped with a micro SD card slot only, the latest generation (Duckbill 2 series) have an additional internal eMMC onboard. To distinguish between both generations, a new device tree compatible string was introduced. To get the MAC address fixup applied, we need to check for this new string here, too. Signed-off-by: Michael Heimpold Signed-off-by: Shawn Guo

ARM: mxs: remove obsolete startup code for TX28

2016-08-09T06:01:41Z

The power and reset handling of the FEC ethernet driver is sufficient to get the ethernet PHY on the TX28 into a usable state. Remove the code that does the PHY initialization on startup. Signed-off-by: Lothar Waßmann Reviewed-by: Fabio Estevam Signed-off-by: Shawn Guo

Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2016-08-01T22:21:13Z

Pull ARM SoC cleanups from Olof Johansson: "The cleanup branch keeps going down in size as we've completed a lot of the major legacy platform removals and conversions. A handful of changes this time around, some of the themes or larger sets are: - A bunch of i.MX cleanups around platform detection, init call cleanups - Misc fixes of missing/implicit includes - Removal of ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB" * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (40 commits) ARM: mps2: fix typo ARM: s3c64xx: avoid warning about 'struct device_node' bus: mvebu-mbus: make mvebu_mbus_syscore_ops static bus: mvebu-mbus: fix __iomem on register pointers ARM: tegra: Remove board_init_funcs array ARM: iop: Fix indentation ARM: imx: remove cpu_is_mx*() ARM: imx: remove last call to cpu_is_mx5* ARM: imx: rework mx27_pm_init() call ARM: imx: deconstruct mx3_idle ARM: imx: deconstruct mxc_rnga initialization ARM: imx: remove cpu_is_mx1 check ARM: i.MX: Do not explicitly call l2x0_of_init() ARM: i.MX: system.c: Tweak prefetch settings for performance ARM: i.MX: system.c: Replace magic numbers ARM: i.MX: system.c: Remove redundant errata 752271 code ARM: i.MX: system.c: Convert goto to if statement ARM: Kirkwood: fix kirkwood_pm_init() declaration/type ARM: Kirkwood: make kirkwood_disable_mbus_error_propagation() static ARM: orion5x: make orion5x_legacy_handle_irq static ...