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path: root/arch/arm/mach-omap2/sdrc.c
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2009-05-28OMAP2/3: PM: push core PM code from linux-omapKevin Hilman
This patch is to sync the core linux-omap PM code with mainline. This code has evolved and been used for a while the linux-omap tree, but the attempt here is to finally get this into mainline. Following this will be a series of patches from the 'PM branch' of the linux-omap tree to add full PM hardware support from the linux-omap tree. Much of this PM core code was written by Jouni Hogander with significant contributions from Paul Walmsley as well as many others from Nokia, Texas Instruments and linux-omap community. Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-05-12OMAP3 SDRC: initialize SDRC_POWER at bootPaul Walmsley
Initialize SDRC_POWER to a known-good setting when the kernel boots. Necessary since some bootloaders don't initialize SDRC_POWER properly. Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-02-08[ARM] OMAP2 SDRC: add SDRAM timing parameter infrastructurePaul Walmsley
For a given SDRAM clock rate, SDRAM chips require memory controllers to use a specific set of timing minimums and maximums to transfer data reliably. These parameters can be different for different memory chips and can also potentially vary by board. This patch adds the infrastructure for board-*.c files to pass this timing data to the SDRAM controller init function. The timing data is specified in an 'omap_sdrc_params' structure, in terms of SDRC controller register values. An array of these structs, one per SDRC target clock rate, is passed by the board-*.c file to omap2_init_common_hw(). This patch does not define the values for different memory chips, nor does it use the values for anything; those will come in subsequent patches. linux-omap source commit is bc84ecfc795c2d1c5cda8da4127cf972f488a696. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08[ARM] OMAP2 SDRC: separate common OMAP2/3 code from OMAP2xxx codePaul Walmsley
Separate SDRC code common to OMAP2/3 from mach-omap2/sdrc2xxx.c to mach-omap2/sdrc.c. Rename the OMAP2xxx-specific functions to use an 'omap2xxx' prefix rather than an 'omap2' prefix, and use "sdrc" in the function names rather than "memory." Mark several functions as static that should not be used outside the sdrc2xxx.c file. linux-omap source commit is bf1612b9d8d29379558500cd5de9ae0367c41fc4. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>