diff options
Diffstat (limited to 'roms/u-boot/drivers/dma/ti/k3-psil.c')
| -rw-r--r-- | roms/u-boot/drivers/dma/ti/k3-psil.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/dma/ti/k3-psil.c b/roms/u-boot/drivers/dma/ti/k3-psil.c new file mode 100644 index 000000000..e82f80754 --- /dev/null +++ b/roms/u-boot/drivers/dma/ti/k3-psil.c @@ -0,0 +1,44 @@ +// 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; + else if (IS_ENABLED(CONFIG_SOC_K3_AM642)) + soc_ep_map = &am64_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); +} |