lwn.git/arch/arm/mach-davinci/sleep.S, branch docs-fixes

ARM: davinci: Replace HTTP links with HTTPS ones

2020-07-21T14:51:33+00:00

Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov [nsekhar@ti.com: drop obsolete hawkboard.org URL completeley fixup subject line prefix] Signed-off-by: Sekhar Nori

ARM: davinci: fix sleep.S build error on ARMv4

2019-07-23T17:12:53+00:00

When building a multiplatform kernel that includes armv4 support, the default target CPU does not support the blx instruction, which leads to a build failure: arch/arm/mach-davinci/sleep.S: Assembler messages: arch/arm/mach-davinci/sleep.S:56: Error: selected processor does not support `blx ip' in ARM mode Add a .arch statement in the sources to make this file build. Link: https://lore.kernel.org/r/20190722145211.1154785-1-arnd@arndb.de Acked-by: Sekhar Nori Signed-off-by: Arnd Bergmann Signed-off-by: Olof Johansson

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333

2019-06-05T15:37:06+00:00

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 version 2 as published by the free software foundation 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 write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 136 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.384967451@linutronix.de Signed-off-by: Greg Kroah-Hartman

ARM: davinci: make headers more local

2015-12-01T20:52:51+00:00

Some header files are never included outside of a mach-davinci directory and do not need to be made visible in include/mach, so let's just move them all down one level. Signed-off-by: Arnd Bergmann Acked-by: Sekhar Nori

ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+

2014-07-18T11:29:04+00:00

ARMv6 and greater introduced a new instruction ("bx") which can be used to return from function calls. Recent CPUs perform better when the "bx lr" instruction is used rather than the "mov pc, lr" instruction, and this sequence is strongly recommended to be used by the ARM architecture manual (section A.4.1.1). We provide a new macro "ret" with all its variants for the condition code which will resolve to the appropriate instruction. Rather than doing this piecemeal, and miss some instances, change all the "mov pc" instances to use the new macro, with the exception of the "movs" instruction and the kprobes code. This allows us to detect the "mov pc, lr" case and fix it up - and also gives us the possibility of deploying this for other registers depending on the CPU selection. Reported-by: Will Deacon Tested-by: Stephen Warren # Tegra Jetson TK1 Tested-by: Robert Jarzmik # mioa701_bootresume.S Tested-by: Andrew Lunn # Kirkwood Tested-by: Shawn Guo Tested-by: Tony Lindgren # OMAPs Tested-by: Gregory CLEMENT # Armada XP, 375, 385 Acked-by: Sekhar Nori # DaVinci Acked-by: Christoffer Dall # kvm/hyp Acked-by: Haojian Zhuang # PXA3xx Acked-by: Stefano Stabellini # Xen Tested-by: Uwe Kleine-König # ARMv7M Tested-by: Simon Horman # Shmobile Signed-off-by: Russell King

Merge branch 'mach_memory_h' of git://git.linaro.org/people/nico/linux into devel-stable

2011-10-18T12:40:54+00:00

ARM: mach-davinci: remove mach/memory.h

2011-10-13T16:49:47+00:00

Move some DDR2 related defines into a private beforehand. Signed-off-by: Nicolas Pitre

ARM: davinci: fix cache flush build error

2011-09-07T11:52:12+00:00

The TNET variant of DaVinci compiles some code that it shares with other DaVinci variants, however it has a V6 CPU rather than an ARM926T, thus the hardcoded call to arm926_flush_kern_cache_all() in sleep.S will obviously fail, and we need to build with the v6_flush_kern_cache_all() call instead. This was triggered by manually altering the DaVinci config to build the TNET version. Cc: Dave Martin Cc: Arnd Bergmann Signed-off-by: Linus Walleij Signed-off-by: Sekhar Nori Cc: stable@kernel.org

davinci: add power management support

2010-02-04T21:29:55+00:00

This patch adds core power management (suspend-to-RAM) support for DaVinci SoCs. The code depends on the the "deepsleep" feature to suspend the SoC and saves power by gating the input clock. The wakeup can be based on an external event as supported by the SoC. Assembly code (in sleep.S) is added to aid gating DDR2 clocks. Code doing this work should not be accessing DDR2. The assembly code is relocated to SRAM by the code in pm.c The support has been validated on DA850/OMAP-L138 only though the code is (hopefully) generic enough that other SoCs supporting deepsleep feature simply requires SoC specific code to start using this driver. Note that all the device drivers don't support suspend/resume still and are being worked on. Signed-off-by: Sekhar Nori Signed-off-by: Kevin Hilman