u-boot.git/arch/arm/lib/cache.c, branch v2015.01

ARM: Implement non-cached memory support

2014-12-18T20:19:21Z

Implement an API that can be used by drivers to allocate memory from a pool that is mapped uncached. This is useful if drivers would otherwise need to do extensive cache maintenance (or explicitly maintaining the cache isn't safe). The API is protected using the new CONFIG_SYS_NONCACHED_MEMORY setting. Boards can set this to the size to be used for the non-cached area. The area will typically be right below the malloc() area, but architectures should take care of aligning the beginning and end of the area to honor any mapping restrictions. Architectures must also ensure that mappings established for this area do not overlap with the malloc() area (which should remain cached for improved performance). While the API is currently only implemented for ARM v7, it should be generic enough to allow other architectures to implement it as well. Signed-off-by: Thierry Reding Signed-off-by: Simon Glass Signed-off-by: Tom Warren

ARM: remove CONFIG_ARM1136 defines

2014-11-20T16:28:25Z

CONFIG_CPU_ARM1136 was introduced into Kconfig by commit 2e07c249a67e (kconfig: arm: introduce symbol for ARM CPUs). This commit removes all the defines of CONFIG_ARM1136 and replaces the only reference in arch/arm/lib/cache.c with CONFIG_CPU_ARM1136. Signed-off-by: Masahiro Yamada

ARM: remove CONFIG_ARM926EJS defines

2014-11-20T16:28:25Z

CONFIG_CPU_ARM926EJS was introduced into Kconfig by commit 2e07c249a67e (kconfig: arm: introduce symbol for ARM CPUs). This commit removes all the defines of CONFIG_ARM926EJS and replaces the only reference in arch/arm/lib/cache.c with CONFIG_CPU_ARM926EJS. Signed-off-by: Masahiro Yamada

ARM: cache_v7: use __weak

2014-07-04T17:57:22Z

This is not only more readable but also prevents a warning about a missing prototype. The prototypes which are actually missing are added. cc: Albert Aribaud Signed-off-by: Jeroen Hofstee Reviewed-by: Tom Rini

arm1136: move cache code from start.S to cache.c

2014-05-15T14:24:26Z

arch/arm/cpu/arm1136/start.S contain a cache flushing function. Remove the function and move its code into arch/arm/lib/cache.c. Signed-off-by: Albert ARIBAUD

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38Z

Signed-off-by: Wolfgang Denk [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini

arm: Remove OMAP2420H4 and all omap24xx support

2013-06-10T12:43:19Z

The omap2420H4 was the only mainline omap24xx board. Prior to being fixed by Jon Hunter in time for v2013.04 it had been functionally broken for a very long time. Remove this board as there's not been interest in it in U-Boot for quite a long time. Signed-off-by: Tom Rini

arm: do not force d-cache enable on all boards

2011-09-04T09:36:16Z

c2dd0d45540397704de9b13287417d21049d34c6 added dcache_enable() to board_init_r(). This enables d-cache for all ARM boards. As a result some of the arm boards that are not cache-ready are broken. Revert this change and allow platform code to take the decision on d-cache enabling. Also add some documentation for cache usage in ARM. Signed-off-by: Aneesh V

arm: minor fixes for cache and mmu handling

2011-07-04T08:55:25Z

1. make sure that page table setup is not done multiple times 2. flush_dcache_all() is more appropriate while disabling cache than a range flush on the entire memory(flush_cache()) Provide a default implementation for flush_dcache_all() for backward compatibility and to avoid build issues. Signed-off-by: Aneesh V

armv7: integrate cache maintenance support

2011-07-04T08:55:25Z

- Enable I-cache on bootup - Enable MMU and D-cache immediately after relocation - Do necessary initialization before enabling d-cache and MMU - Changes to cleanup_before_linux() - Make changes according to the new framework Signed-off-by: Aneesh V