u-boot/drivers/dma/ti/k3-psil.c

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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com
* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
*/
#include <linux/kernel.h>
#include <linux/err.h>
#include "k3-psil-priv.h"
static const struct psil_ep_map *soc_ep_map;
struct psil_endpoint_config *psil_get_ep_config(u32 thread_id)
{
int i;
if (!soc_ep_map) {
if (IS_ENABLED(CONFIG_SOC_K3_AM6))
soc_ep_map = &am654_ep_map;
else if (IS_ENABLED(CONFIG_SOC_K3_J721E))
soc_ep_map = &j721e_ep_map;
}
if (thread_id & K3_PSIL_DST_THREAD_ID_OFFSET && soc_ep_map->dst) {
/* check in destination thread map */
for (i = 0; i < soc_ep_map->dst_count; i++) {
if (soc_ep_map->dst[i].thread_id == thread_id)
return &soc_ep_map->dst[i].ep_config;
}
}
thread_id &= ~K3_PSIL_DST_THREAD_ID_OFFSET;
if (soc_ep_map->src) {
for (i = 0; i < soc_ep_map->src_count; i++) {
if (soc_ep_map->src[i].thread_id == thread_id)
return &soc_ep_map->src[i].ep_config;
}
}
return ERR_PTR(-ENOENT);
}