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// SPDX-License-Identifier: GPL-2.0
/*
* Interconnect framework driver for i.MX8MM SoC
*
* Copyright (c) 2019, BayLibre
* Copyright (c) 2019-2020, NXP
* Author: Alexandre Bailon <abailon@baylibre.com>
* Author: Leonard Crestez <leonard.crestez@nxp.com>
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <dt-bindings/interconnect/imx8mm.h>
#include "imx.h"
static const struct imx_icc_node_adj_desc imx8mm_dram_adj = {
.bw_mul = 1,
.bw_div = 16,
.phandle_name = "fsl,ddrc",
};
static const struct imx_icc_node_adj_desc imx8mm_noc_adj = {
.bw_mul = 1,
.bw_div = 16,
.main_noc = true,
};
/*
* Describe bus masters, slaves and connections between them
*
* This is a simplified subset of the bus diagram, there are several other
* PL301 nics which are skipped/merged into PL301_MAIN
*/
static struct imx_icc_node_desc nodes[] = {
DEFINE_BUS_INTERCONNECT("NOC", IMX8MM_ICN_NOC, &imx8mm_noc_adj,
IMX8MM_ICS_DRAM, IMX8MM_ICN_MAIN),
DEFINE_BUS_SLAVE("DRAM", IMX8MM_ICS_DRAM, &imx8mm_dram_adj),
DEFINE_BUS_SLAVE("OCRAM", IMX8MM_ICS_OCRAM, NULL),
DEFINE_BUS_MASTER("A53", IMX8MM_ICM_A53, IMX8MM_ICN_NOC),
/* VPUMIX */
DEFINE_BUS_MASTER("VPU H1", IMX8MM_ICM_VPU_H1, IMX8MM_ICN_VIDEO),
DEFINE_BUS_MASTER("VPU G1", IMX8MM_ICM_VPU_G1, IMX8MM_ICN_VIDEO),
DEFINE_BUS_MASTER("VPU G2", IMX8MM_ICM_VPU_G2, IMX8MM_ICN_VIDEO),
DEFINE_BUS_INTERCONNECT("PL301_VIDEO", IMX8MM_ICN_VIDEO, NULL, IMX8MM_ICN_NOC),
/* GPUMIX */
DEFINE_BUS_MASTER("GPU 2D", IMX8MM_ICM_GPU2D, IMX8MM_ICN_GPU),
DEFINE_BUS_MASTER("GPU 3D", IMX8MM_ICM_GPU3D, IMX8MM_ICN_GPU),
DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MM_ICN_GPU, NULL, IMX8MM_ICN_NOC),
/* DISPLAYMIX */
DEFINE_BUS_MASTER("CSI", IMX8MM_ICM_CSI, IMX8MM_ICN_MIPI),
DEFINE_BUS_MASTER("LCDIF", IMX8MM_ICM_LCDIF, IMX8MM_ICN_MIPI),
DEFINE_BUS_INTERCONNECT("PL301_MIPI", IMX8MM_ICN_MIPI, NULL, IMX8MM_ICN_NOC),
/* HSIO */
DEFINE_BUS_MASTER("USB1", IMX8MM_ICM_USB1, IMX8MM_ICN_HSIO),
DEFINE_BUS_MASTER("USB2", IMX8MM_ICM_USB2, IMX8MM_ICN_HSIO),
DEFINE_BUS_MASTER("PCIE", IMX8MM_ICM_PCIE, IMX8MM_ICN_HSIO),
DEFINE_BUS_INTERCONNECT("PL301_HSIO", IMX8MM_ICN_HSIO, NULL, IMX8MM_ICN_NOC),
/* Audio */
DEFINE_BUS_MASTER("SDMA2", IMX8MM_ICM_SDMA2, IMX8MM_ICN_AUDIO),
DEFINE_BUS_MASTER("SDMA3", IMX8MM_ICM_SDMA3, IMX8MM_ICN_AUDIO),
DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MM_ICN_AUDIO, NULL, IMX8MM_ICN_MAIN),
/* Ethernet */
DEFINE_BUS_MASTER("ENET", IMX8MM_ICM_ENET, IMX8MM_ICN_ENET),
DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MM_ICN_ENET, NULL, IMX8MM_ICN_MAIN),
/* Other */
DEFINE_BUS_MASTER("SDMA1", IMX8MM_ICM_SDMA1, IMX8MM_ICN_MAIN),
DEFINE_BUS_MASTER("NAND", IMX8MM_ICM_NAND, IMX8MM_ICN_MAIN),
DEFINE_BUS_MASTER("USDHC1", IMX8MM_ICM_USDHC1, IMX8MM_ICN_MAIN),
DEFINE_BUS_MASTER("USDHC2", IMX8MM_ICM_USDHC2, IMX8MM_ICN_MAIN),
DEFINE_BUS_MASTER("USDHC3", IMX8MM_ICM_USDHC3, IMX8MM_ICN_MAIN),
DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MM_ICN_MAIN, NULL,
IMX8MM_ICN_NOC, IMX8MM_ICS_OCRAM),
};
static int imx8mm_icc_probe(struct platform_device *pdev)
{
return imx_icc_register(pdev, nodes, ARRAY_SIZE(nodes), NULL);
}
static int imx8mm_icc_remove(struct platform_device *pdev)
{
imx_icc_unregister(pdev);
return 0;
}
static struct platform_driver imx8mm_icc_driver = {
.probe = imx8mm_icc_probe,
.remove = imx8mm_icc_remove,
.driver = {
.name = "imx8mm-interconnect",
},
};
module_platform_driver(imx8mm_icc_driver);
MODULE_AUTHOR("Alexandre Bailon <abailon@baylibre.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:imx8mm-interconnect");
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