1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Interconnect framework driver for i.MX8MN SoC
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (c) 2019-2020, NXP
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <linux/module.h>
9*4882a593Smuzhiyun #include <linux/platform_device.h>
10*4882a593Smuzhiyun #include <dt-bindings/interconnect/imx8mn.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include "imx.h"
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun static const struct imx_icc_node_adj_desc imx8mn_dram_adj = {
15*4882a593Smuzhiyun .bw_mul = 1,
16*4882a593Smuzhiyun .bw_div = 4,
17*4882a593Smuzhiyun .phandle_name = "fsl,ddrc",
18*4882a593Smuzhiyun };
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun static const struct imx_icc_node_adj_desc imx8mn_noc_adj = {
21*4882a593Smuzhiyun .bw_mul = 1,
22*4882a593Smuzhiyun .bw_div = 4,
23*4882a593Smuzhiyun .main_noc = true,
24*4882a593Smuzhiyun };
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun /*
27*4882a593Smuzhiyun * Describe bus masters, slaves and connections between them
28*4882a593Smuzhiyun *
29*4882a593Smuzhiyun * This is a simplified subset of the bus diagram, there are several other
30*4882a593Smuzhiyun * PL301 nics which are skipped/merged into PL301_MAIN
31*4882a593Smuzhiyun */
32*4882a593Smuzhiyun static struct imx_icc_node_desc nodes[] = {
33*4882a593Smuzhiyun DEFINE_BUS_INTERCONNECT("NOC", IMX8MN_ICN_NOC, &imx8mn_noc_adj,
34*4882a593Smuzhiyun IMX8MN_ICS_DRAM, IMX8MN_ICN_MAIN),
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun DEFINE_BUS_SLAVE("DRAM", IMX8MN_ICS_DRAM, &imx8mn_dram_adj),
37*4882a593Smuzhiyun DEFINE_BUS_SLAVE("OCRAM", IMX8MN_ICS_OCRAM, NULL),
38*4882a593Smuzhiyun DEFINE_BUS_MASTER("A53", IMX8MN_ICM_A53, IMX8MN_ICN_NOC),
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun /* GPUMIX */
41*4882a593Smuzhiyun DEFINE_BUS_MASTER("GPU", IMX8MN_ICM_GPU, IMX8MN_ICN_GPU),
42*4882a593Smuzhiyun DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MN_ICN_GPU, NULL, IMX8MN_ICN_NOC),
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun /* DISPLAYMIX */
45*4882a593Smuzhiyun DEFINE_BUS_MASTER("CSI1", IMX8MN_ICM_CSI1, IMX8MN_ICN_MIPI),
46*4882a593Smuzhiyun DEFINE_BUS_MASTER("CSI2", IMX8MN_ICM_CSI2, IMX8MN_ICN_MIPI),
47*4882a593Smuzhiyun DEFINE_BUS_MASTER("ISI", IMX8MN_ICM_ISI, IMX8MN_ICN_MIPI),
48*4882a593Smuzhiyun DEFINE_BUS_MASTER("LCDIF", IMX8MN_ICM_LCDIF, IMX8MN_ICN_MIPI),
49*4882a593Smuzhiyun DEFINE_BUS_INTERCONNECT("PL301_MIPI", IMX8MN_ICN_MIPI, NULL, IMX8MN_ICN_NOC),
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun /* USB goes straight to NOC */
52*4882a593Smuzhiyun DEFINE_BUS_MASTER("USB", IMX8MN_ICM_USB, IMX8MN_ICN_NOC),
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun /* Audio */
55*4882a593Smuzhiyun DEFINE_BUS_MASTER("SDMA2", IMX8MN_ICM_SDMA2, IMX8MN_ICN_AUDIO),
56*4882a593Smuzhiyun DEFINE_BUS_MASTER("SDMA3", IMX8MN_ICM_SDMA3, IMX8MN_ICN_AUDIO),
57*4882a593Smuzhiyun DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MN_ICN_AUDIO, NULL, IMX8MN_ICN_MAIN),
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun /* Ethernet */
60*4882a593Smuzhiyun DEFINE_BUS_MASTER("ENET", IMX8MN_ICM_ENET, IMX8MN_ICN_ENET),
61*4882a593Smuzhiyun DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MN_ICN_ENET, NULL, IMX8MN_ICN_MAIN),
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun /* Other */
64*4882a593Smuzhiyun DEFINE_BUS_MASTER("SDMA1", IMX8MN_ICM_SDMA1, IMX8MN_ICN_MAIN),
65*4882a593Smuzhiyun DEFINE_BUS_MASTER("NAND", IMX8MN_ICM_NAND, IMX8MN_ICN_MAIN),
66*4882a593Smuzhiyun DEFINE_BUS_MASTER("USDHC1", IMX8MN_ICM_USDHC1, IMX8MN_ICN_MAIN),
67*4882a593Smuzhiyun DEFINE_BUS_MASTER("USDHC2", IMX8MN_ICM_USDHC2, IMX8MN_ICN_MAIN),
68*4882a593Smuzhiyun DEFINE_BUS_MASTER("USDHC3", IMX8MN_ICM_USDHC3, IMX8MN_ICN_MAIN),
69*4882a593Smuzhiyun DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MN_ICN_MAIN, NULL,
70*4882a593Smuzhiyun IMX8MN_ICN_NOC, IMX8MN_ICS_OCRAM),
71*4882a593Smuzhiyun };
72*4882a593Smuzhiyun
imx8mn_icc_probe(struct platform_device * pdev)73*4882a593Smuzhiyun static int imx8mn_icc_probe(struct platform_device *pdev)
74*4882a593Smuzhiyun {
75*4882a593Smuzhiyun return imx_icc_register(pdev, nodes, ARRAY_SIZE(nodes));
76*4882a593Smuzhiyun }
77*4882a593Smuzhiyun
imx8mn_icc_remove(struct platform_device * pdev)78*4882a593Smuzhiyun static int imx8mn_icc_remove(struct platform_device *pdev)
79*4882a593Smuzhiyun {
80*4882a593Smuzhiyun return imx_icc_unregister(pdev);
81*4882a593Smuzhiyun }
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun static struct platform_driver imx8mn_icc_driver = {
84*4882a593Smuzhiyun .probe = imx8mn_icc_probe,
85*4882a593Smuzhiyun .remove = imx8mn_icc_remove,
86*4882a593Smuzhiyun .driver = {
87*4882a593Smuzhiyun .name = "imx8mn-interconnect",
88*4882a593Smuzhiyun },
89*4882a593Smuzhiyun };
90*4882a593Smuzhiyun
91*4882a593Smuzhiyun module_platform_driver(imx8mn_icc_driver);
92*4882a593Smuzhiyun MODULE_ALIAS("platform:imx8mn-interconnect");
93*4882a593Smuzhiyun MODULE_AUTHOR("Leonard Crestez <leonard.crestez@nxp.com>");
94*4882a593Smuzhiyun MODULE_LICENSE("GPL v2");
95