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mbox: workaround for missing ic-msg

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When a LD sends an ic-msg to SCFW - it happens that sometimes that SCFW
does not handle the request.
For the moment the problem is solved by sending a second vevif event
shortly after the initial request.

Signed-off-by: Maciej Meijer <maciej.meijer@nordicsemi.no>
This commit is contained in:
Maciej Meijer 2025-02-28 09:12:27 +01:00 • committed by Benjamin Cabé
commit 982abadd34
1 changed files with 8 additions and 0 deletions
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8
drivers/mbox/mbox_nrf_vevif_task_tx.c
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@ -5,12 +5,14 @@
#define DT_DRV_COMPAT nordic_nrf_vevif_task_tx
#include <zephyr/kernel.h>
#include <zephyr/devicetree.h>
#include <zephyr/drivers/mbox.h>
#include <haly/nrfy_vpr.h>
#define TASKS_IDX_MAX NRF_VPR_TASKS_TRIGGER_MAX
#define VEVIF_RETRIGGER_DELAY_USEC 12
struct mbox_vevif_task_tx_conf {
NRF_VPR_Type *vpr;
@ -39,6 +41,12 @@ static int vevif_task_tx_send(const struct device *dev, uint32_t id, const struc
nrfy_vpr_task_trigger(config->vpr, nrfy_vpr_trigger_task_get(id));
#ifdef CONFIG_SOC_NRF54H20
k_busy_wait(VEVIF_RETRIGGER_DELAY_USEC);
nrfy_vpr_task_trigger(config->vpr, nrfy_vpr_trigger_task_get(id));
#endif /* CONFIG_SOC_NRF54H20 */
return 0;
}