Differential D5762

Add MULTIDELAY to allow multiple DELAY implementations
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Authored by andrew on Mar 27 2016, 8:35 PM.

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rS298854: Add a MULTIDELAY option to allow the ARM kernel to have multiple DELAY

Summary

This allows us to have multiple drivers supply a function for DELAY to
use. The platform code supplies an early version to be used before
devices have been enumerated. This used a delay value passed in from
the PLATFORM spec to decide how many times to loop for.

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rS FreeBSD src repository - subversion

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Buildable 3035
Build 3067: arc lint + arc unit

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andrew updated this revision to Diff 14658.Mar 27 2016, 8:35 PM

andrew retitled this revision from to Add MULTIDELAY to allow multiple DELAY implementations.

andrew updated this object.

andrew edited the test plan for this revision. (Show Details)

andrew added a reviewer: ARM.

Herald added a subscriber: imp. · View Herald TranscriptMar 27 2016, 8:35 PM

andrew added inline comments.Mar 27 2016, 8:43 PM

sys/arm/allwinner/allwinner_machdep.c
151	200 is a guess based on the gneric timer code. Someone should calibrate it.

Patch tested on A10, kernel compile and boots fine. Will test A20 later.
So now, how should I calibrate the value ?

Closed by commit rS298854: Add a MULTIDELAY option to allow the ARM kernel to have multiple DELAY (authored by andrew). · Explain WhyApr 30 2016, 5:27 PM

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Path

Size

sys/

arm/

allwinner/

allwinner_machdep.c

8 lines

26 lines

arm/

generic_timer.c

56 lines

22 lines

38 lines

broadcom/

bcm2835/

bcm2835_machdep.c

4 lines

conf/

1 line

1 line

1 line

freescale/

imx/

imx51_machdep.c

2 lines

imx53_machdep.c

2 lines

6 lines

include/

5 lines

37 lines

nvidia/

tegra124/

tegra124_machdep.c

2 lines

qemu/

2 lines

ti/

4 lines

conf/

1 line

Diff 14658

sys/arm/allwinner/allwinner_machdep.c

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sys/arm/allwinner/timer.c

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sys/arm/arm/generic_timer.c

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sys/arm/arm/machdep.c

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sys/arm/arm/platform.c

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sys/arm/broadcom/bcm2835/bcm2835_machdep.c

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sys/arm/conf/A10

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sys/arm/conf/A20

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sys/arm/conf/VIRT

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sys/arm/freescale/imx/imx51_machdep.c

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sys/arm/freescale/imx/imx53_machdep.c

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sys/arm/freescale/imx/imx6_machdep.c

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sys/arm/include/machdep.h

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sys/arm/include/platformvar.h

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sys/arm/nvidia/tegra124/tegra124_machdep.c

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sys/arm/qemu/virt_machdep.c

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sys/arm/ti/ti_machdep.c

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sys/conf/options.arm

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