Re: [PATCH 0/8 v4] ARM OMAP2+ GPMC: fixes and bus children

From: Tony Lindgren
Date: Thu Mar 05 2015 - 20:03:42 EST


* Robert ABEL <rabel@xxxxxxxxxxxxxxxxxxxxxxx> [150227 08:00]:
> These are the changes I proposed in these patch series: [1], [2], [3], [4]
> rebased to 3.19 as well as new changes for little bugs I noticed while
> preparing this patch series as well as changes introduced via comments.
>
> 1. DEBUG was undefined in source code --> remove offending lines
> 2. add capability to have busses as children of the GPMC and multiple
> devices on a bus. See [2] for an example DTS syntax.
> 3. debug output was unaligned --> align it
> 4. output for copy-pasting to DTS had erroneous timing outputs and
> made it hard to copy-paste --> correct timing values, add comments
> as DTS comments.
> 5. WAITMONITORINGTIME is expressed as GPMC_CLK cycles for all accesses.
> GPMCFCLKDIVIDER is used as a divider, so it must always be programmed.
> 6. GPMCFCLKDIVIDER is calculated according to WAITMONITORINGTIME for
> asynchronous accesses inside the driver --> asynchronous accesses now
> completely decoupled from gpmc,sync-clk-ps.
> 7. WAITMONITORINGTIME was being programmed/shown in GPMC_FCLK cycles instead
> of GPMC_CLK cycles --> add clock domain information where necessary.
> 8. Calculated values for WAITMONITORINGTIME and CLKACTIVATIONTIME that were
> outside the defined range would not raise an error.
> DEVICESIZE, ATTACHEDDEVICEPAGELENGTH, WAITMONITORINGTIME and
> CLKACTIVATIONTIME would not be marked as incorrect on DTS output.
> --> Fix all of these.

Thanks for fixing all these issues:

Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>


> [1]: https://lkml.org/lkml/2015/2/12/495
> [2]: https://lkml.org/lkml/2015/2/16/337
> [3]: https://lkml.org/lkml/2015/2/24/609
> [4]: https://lkml.org/lkml/2015/2/26/387
>
> Robert ABEL (9):
> ARM OMAP2+ GPMC: don't undef DEBUG
> ARM OMAP2+ GPMC: add bus children
> ARM OMAP2+ GPMC: fix debug output alignment
> ARM OMAP2+ GPMC: change get_gpmc_timing_reg output for DTS
> ARM OMAP2+ GPMC: always program GPMCFCLKDIVIDER
> ARM OMAP2+ GPMC: calculate GPMCFCLKDIVIDER based on WAITMONITORINGTIME
> ARM OMAP2+ GPMC: fix WAITMONITORINGTIME divider bug
> ARM OMAP2+ GPMC: fix programming/showing reserved timing parameters
>
> arch/arm/mach-omap2/gpmc-nand.c | 17 +-
> arch/arm/mach-omap2/gpmc-onenand.c | 4 +-
> arch/arm/mach-omap2/usb-tusb6010.c | 4 +-
> drivers/memory/Makefile | 2 +
> drivers/memory/omap-gpmc.c | 313 +++++++++++++++++++++++++++++--------
> include/linux/omap-gpmc.h | 2 +-
> 6 files changed, 265 insertions(+), 77 deletions(-)
>
> --
> 2.3.0
>
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