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path: root/arch/arm/mach-davinci/sram.c
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2012-10-27ARM: davinci: add platform hook to fetch the SRAM poolMatt Porter
Adds sram_get_gen_pool() which allows platform code to get the machine's SRAM gen_pool. The gen_pool may be passed in platform data for driver genalloc use. Signed-off-by: Matt Porter <mporter@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2012-10-27ARM: davinci: sram: switch from iotable to ioremapped regionsBen Gardiner
The current davinci init sets up SRAM in iotables. There has been an observed failure to boot a da850 with 128K specified in the iotable. Make the davinci sram allocator do an ioremap of the region specified by the entries in davinci_soc_info before registering with gen_pool_add_virt(). Remove all iotable SRAM mappings and SRAM_VIRT. Regression tested suspend/resume on AM180x EVM. Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> Signed-off-by: Matt Porter <mporter@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2009-11-25DaVinci: remove unneeded #include'sSergei Shtylyov
There have accumulated quite a lot of them after the code reorganizations... In several cases I had to replace #include <linux/dma-mapping.h> which wasn't needed directly but happened to #include <linux/err.h> which was needed. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-08-26davinci: sram warning fixDavid Brownell
CC arch/arm/mach-davinci/sram.o arch/arm/mach-davinci/sram.c: In function 'sram_init': arch/arm/mach-davinci/sram.c:63: warning: comparison of distinct pointer types lacks a cast Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-05-28davinci: add SRAM allocatorDavid Brownell
Provide a generic SRAM allocator using genalloc, and vaguely modeled after what AVR32 uses. This builds on top of the static CPU mapping set up in the previous patch, and returns DMA mappings as requested (if possible). Compared to its OMAP cousin, there's no current support for (currently non-existent) DaVinci power management code running in SRAM; and this has ways to deallocate, instead of being allocate-only. The initial user of this should probably be the audio code, because EDMA from DDR is subject to various dropouts on at least DM355 and DM6446 chips. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>