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path: root/include/sbi_utils/timer
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2021-09-26lib: sbi: Add timer frequency to struct sbi_timer_deviceAnup Patel
Generic mdelay() and udelay() functions can be provided by the sbi_timer framework if timer frequency is available in the timer instance provided by the platform support or timer driver. This patch adds timer frequency (timer_freq) member in the struct sbi_timer_device for above purpose. Signed-off-by: Anup Patel <[email protected]> Reviewed-by: Bin Meng <[email protected]> Reviewed-by: Xiang W <[email protected]>
2021-08-14lib: utils/timer: Simplify MTIMER synchronizationAnup Patel
We simplify MTIMER synchronization as follows: 1) Detect MTIMER devices with unique (or non-shared) MTIME register at boot-time 2) Select first MTIMER device with no associated HART as our reference MTIMER device 3) Only synchronize MTIMER devices with unique (or non-shared) MTIME register using reference MTIMER device 4) Directly update the MTIME register at time of synchronization because MTIME is a read/write register. Signed-off-by: Anup Patel <[email protected]> Reviewed-by: Atish Patra <[email protected]>
2021-08-14lib: utils/timer: Allow separate base addresses for MTIME and MTIMECMPAnup Patel
We extend the ACLINT library to support separate base addresses for MTIME and MTIMECMP registers. Signed-off-by: Anup Patel <[email protected]> Reviewed-by: Atish Patra <[email protected]>
2021-06-24lib: utils/timer: Add ACLINT MTIMER libraryAnup Patel
We add common ACLINT MTIMER library similar to the CLINT library so that OpenSBI platforms can use it. Signed-off-by: Anup Patel <[email protected]> Reviewed-by: Bin Meng <[email protected]> Reviewed-by: Xiang W <[email protected]>
2021-04-28lib: sbi: Simplify timer platform operationsAnup Patel
Instead of having timer_value(), timer_event_start(), and timer_event_stop() callbacks in platform operations, it will be much simpler for timer driver to directly register these operations as device to the sbi_timer implementation. Signed-off-by: Anup Patel <[email protected]> Reviewed-by: Alistair Francis <[email protected]>
2020-05-01lib: utils: Add simple FDT timer frameworkAnup Patel
We add simple timer framework which will select and use timer driver based on details in FDT passed by previous booting stage. Signed-off-by: Anup Patel <[email protected]> Reviewed-by: Atish Patra <[email protected]>