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[Backport v3.7.99-ncs3-branch] nrf54h20 flpr fixes #2438

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[Backport v3.7.99-ncs3-branch] nrf54h20 flpr fixes #2438

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ab1f9aa
[nrf fromtree] drv: nordic_vpr_launcher: manage data cache
hubertmis Jan 16, 2025
73f7455
[nrf fromtree] dts: common: nordic: nrf54h20: Fix flpr bus-width
karstenkoenig Jan 14, 2025
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6 changes: 6 additions & 0 deletions drivers/misc/nordic_vpr_launcher/nordic_vpr_launcher.c
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@

#include <string.h>

#include <zephyr/cache.h>
#include <zephyr/devicetree.h>
#include <zephyr/init.h>
#include <zephyr/logging/log.h>
Expand Down Expand Up @@ -38,6 +39,11 @@ static int nordic_vpr_launcher_init(const struct device *dev)
LOG_DBG("Loading VPR (%p) from %p to %p (%zu bytes)", config->vpr,
(void *)config->src_addr, (void *)config->exec_addr, config->size);
memcpy((void *)config->exec_addr, (void *)config->src_addr, config->size);
#if defined(CONFIG_DCACHE)
LOG_DBG("Writing back cache with loaded VPR (from %p %zu bytes)",
(void *)config->exec_addr, config->size);
sys_cache_data_flush_range((void *)config->exec_addr, config->size);
#endif
}
#endif

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2 changes: 1 addition & 1 deletion dts/common/nordic/nrf54h20.dtsi
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Expand Up @@ -84,7 +84,7 @@
device_type = "cpu";
clock-frequency = <DT_FREQ_M(320)>;
riscv,isa = "rv32emc";
nordic,bus-width = <64>;
nordic,bus-width = <32>;

cpuflpr_vevif_rx: mailbox {
compatible = "nordic,nrf-vevif-task-rx";
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