root/drivers/dma/ti/k3-psil-am64.c
// SPDX-License-Identifier: GPL-2.0
/*
 *  Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com
 *  Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
 */

#include <linux/kernel.h>

#include "k3-psil-priv.h"

#define PSIL_PDMA_XY_TR(x)                                      \
        {                                                       \
                .thread_id = x,                                 \
                .ep_config = {                                  \
                        .ep_type = PSIL_EP_PDMA_XY,             \
                        .mapped_channel_id = -1,                \
                        .default_flow_id = -1,                  \
                },                                              \
        }

#define PSIL_PDMA_XY_PKT(x)                                     \
        {                                                       \
                .thread_id = x,                                 \
                .ep_config = {                                  \
                        .ep_type = PSIL_EP_PDMA_XY,             \
                        .mapped_channel_id = -1,                \
                        .default_flow_id = -1,                  \
                        .pkt_mode = 1,                          \
                },                                              \
        }

#define PSIL_ETHERNET(x, ch, flow_base, flow_cnt)               \
        {                                                       \
                .thread_id = x,                                 \
                .ep_config = {                                  \
                        .ep_type = PSIL_EP_NATIVE,              \
                        .pkt_mode = 1,                          \
                        .needs_epib = 1,                        \
                        .psd_size = 16,                         \
                        .mapped_channel_id = ch,                \
                        .flow_start = flow_base,                \
                        .flow_num = flow_cnt,                   \
                        .default_flow_id = flow_base,           \
                },                                              \
        }

#define PSIL_SAUL(x, ch, flow_base, flow_cnt, default_flow, tx) \
        {                                                       \
                .thread_id = x,                                 \
                .ep_config = {                                  \
                        .ep_type = PSIL_EP_NATIVE,              \
                        .pkt_mode = 1,                          \
                        .needs_epib = 1,                        \
                        .psd_size = 64,                         \
                        .mapped_channel_id = ch,                \
                        .flow_start = flow_base,                \
                        .flow_num = flow_cnt,                   \
                        .default_flow_id = default_flow,        \
                        .notdpkt = tx,                          \
                },                                              \
        }

/* PSI-L source thread IDs, used for RX (DMA_DEV_TO_MEM) */
static struct psil_ep am64_src_ep_map[] = {
        /* SAUL */
        PSIL_SAUL(0x4000, 17, 32, 8, 32, 0),
        PSIL_SAUL(0x4001, 18, 32, 8, 33, 0),
        PSIL_SAUL(0x4002, 19, 40, 8, 40, 0),
        PSIL_SAUL(0x4003, 20, 40, 8, 41, 0),
        /* ICSS_G0 */
        PSIL_ETHERNET(0x4100, 21, 48, 16),
        PSIL_ETHERNET(0x4101, 22, 64, 16),
        PSIL_ETHERNET(0x4102, 23, 80, 16),
        PSIL_ETHERNET(0x4103, 24, 96, 16),
        /* ICSS_G1 */
        PSIL_ETHERNET(0x4200, 25, 112, 16),
        PSIL_ETHERNET(0x4201, 26, 128, 16),
        PSIL_ETHERNET(0x4202, 27, 144, 16),
        PSIL_ETHERNET(0x4203, 28, 160, 16),
        /* PDMA_MAIN0 - SPI0-3 */
        PSIL_PDMA_XY_PKT(0x4300),
        PSIL_PDMA_XY_PKT(0x4301),
        PSIL_PDMA_XY_PKT(0x4302),
        PSIL_PDMA_XY_PKT(0x4303),
        PSIL_PDMA_XY_PKT(0x4304),
        PSIL_PDMA_XY_PKT(0x4305),
        PSIL_PDMA_XY_PKT(0x4306),
        PSIL_PDMA_XY_PKT(0x4307),
        PSIL_PDMA_XY_PKT(0x4308),
        PSIL_PDMA_XY_PKT(0x4309),
        PSIL_PDMA_XY_PKT(0x430a),
        PSIL_PDMA_XY_PKT(0x430b),
        PSIL_PDMA_XY_PKT(0x430c),
        PSIL_PDMA_XY_PKT(0x430d),
        PSIL_PDMA_XY_PKT(0x430e),
        PSIL_PDMA_XY_PKT(0x430f),
        /* PDMA_MAIN0 - USART0-1 */
        PSIL_PDMA_XY_PKT(0x4310),
        PSIL_PDMA_XY_PKT(0x4311),
        /* PDMA_MAIN1 - SPI4 */
        PSIL_PDMA_XY_PKT(0x4400),
        PSIL_PDMA_XY_PKT(0x4401),
        PSIL_PDMA_XY_PKT(0x4402),
        PSIL_PDMA_XY_PKT(0x4403),
        /* PDMA_MAIN1 - USART2-6 */
        PSIL_PDMA_XY_PKT(0x4404),
        PSIL_PDMA_XY_PKT(0x4405),
        PSIL_PDMA_XY_PKT(0x4406),
        PSIL_PDMA_XY_PKT(0x4407),
        PSIL_PDMA_XY_PKT(0x4408),
        /* PDMA_MAIN1 - ADCs */
        PSIL_PDMA_XY_TR(0x440f),
        PSIL_PDMA_XY_TR(0x4410),
        /* CPSW2 */
        PSIL_ETHERNET(0x4500, 16, 16, 16),
};

/* PSI-L destination thread IDs, used for TX (DMA_MEM_TO_DEV) */
static struct psil_ep am64_dst_ep_map[] = {
        /* SAUL */
        PSIL_SAUL(0xc000, 24, 80, 8, 80, 1),
        PSIL_SAUL(0xc001, 25, 88, 8, 88, 1),
        /* ICSS_G0 */
        PSIL_ETHERNET(0xc100, 26, 96, 1),
        PSIL_ETHERNET(0xc101, 27, 97, 1),
        PSIL_ETHERNET(0xc102, 28, 98, 1),
        PSIL_ETHERNET(0xc103, 29, 99, 1),
        PSIL_ETHERNET(0xc104, 30, 100, 1),
        PSIL_ETHERNET(0xc105, 31, 101, 1),
        PSIL_ETHERNET(0xc106, 32, 102, 1),
        PSIL_ETHERNET(0xc107, 33, 103, 1),
        /* ICSS_G1 */
        PSIL_ETHERNET(0xc200, 34, 104, 1),
        PSIL_ETHERNET(0xc201, 35, 105, 1),
        PSIL_ETHERNET(0xc202, 36, 106, 1),
        PSIL_ETHERNET(0xc203, 37, 107, 1),
        PSIL_ETHERNET(0xc204, 38, 108, 1),
        PSIL_ETHERNET(0xc205, 39, 109, 1),
        PSIL_ETHERNET(0xc206, 40, 110, 1),
        PSIL_ETHERNET(0xc207, 41, 111, 1),
        /* CPSW2 */
        PSIL_ETHERNET(0xc500, 16, 16, 8),
        PSIL_ETHERNET(0xc501, 17, 24, 8),
        PSIL_ETHERNET(0xc502, 18, 32, 8),
        PSIL_ETHERNET(0xc503, 19, 40, 8),
        PSIL_ETHERNET(0xc504, 20, 48, 8),
        PSIL_ETHERNET(0xc505, 21, 56, 8),
        PSIL_ETHERNET(0xc506, 22, 64, 8),
        PSIL_ETHERNET(0xc507, 23, 72, 8),
};

struct psil_ep_map am64_ep_map = {
        .name = "am64",
        .src = am64_src_ep_map,
        .src_count = ARRAY_SIZE(am64_src_ep_map),
        .dst = am64_dst_ep_map,
        .dst_count = ARRAY_SIZE(am64_dst_ep_map),
};