drivers: timer: Add TI J721e DM TIMER support #61020
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drivers/timer/ti_j721e_dmtimer.c
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| unsigned int sys_clock_elapsed(void) | ||
| { | ||
| return 0; | ||
| } |
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@slpp95prashanth I don't think this can be empty.
Also missing sys_clock_set_timeout() implementation?
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@vaishnavachath
sys_clock_elapsed returns zero if TICKLESS_CAPABLE is disabled.
sys_clock_set_timeout() is required for TICKLESS_CAPABLE option. I tested the threads and time features seems to work. I thought of adding TICKLESS_CAPABLE once initial support is merged. Shall I add it after the soc, board, device tree, interrupt controller and timers PR are merged?
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This PR depends on the #60856. |
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The Kconfig, file and compatible names for dmtimer are chosen based on linux kernel. |
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@slpp95prashanth Please squash the TICKLESS support commit with the base commit. |
TI DM Timer is a dual mode timer, J721E R5 cores does not have arch timer for systick. Add DM Timer for systick timer support. Signed-off-by: Prashanth S <slpp95prashanth@yahoo.com>
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This pull request has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this pull request will automatically be closed in 14 days. Note, that you can always re-open a closed pull request at any time. |
In J721e, R5 cores does not have arch timer for
systick. Add DM Timer for systick timer support.
TRM for J721e https://www.ti.com/lit/zip/spruil1
File: spruil1c.pdf
TImer: section 12.10
BeagleBone AI_64 https://beagleboard.org/ai-64