imx8mq.c 3.4 KB

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  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * Interconnect framework driver for i.MX8MQ SoC
  4. *
  5. * Copyright (c) 2019-2020, NXP
  6. */
  7. #include <linux/module.h>
  8. #include <linux/platform_device.h>
  9. #include <linux/interconnect-provider.h>
  10. #include <dt-bindings/interconnect/imx8mq.h>
  11. #include "imx.h"
  12. static const struct imx_icc_node_adj_desc imx8mq_dram_adj = {
  13. .bw_mul = 1,
  14. .bw_div = 4,
  15. .phandle_name = "fsl,ddrc",
  16. };
  17. static const struct imx_icc_node_adj_desc imx8mq_noc_adj = {
  18. .bw_mul = 1,
  19. .bw_div = 4,
  20. .main_noc = true,
  21. };
  22. /*
  23. * Describe bus masters, slaves and connections between them
  24. *
  25. * This is a simplified subset of the bus diagram, there are several other
  26. * PL301 nics which are skipped/merged into PL301_MAIN
  27. */
  28. static struct imx_icc_node_desc nodes[] = {
  29. DEFINE_BUS_INTERCONNECT("NOC", IMX8MQ_ICN_NOC, &imx8mq_noc_adj,
  30. IMX8MQ_ICS_DRAM, IMX8MQ_ICN_MAIN),
  31. DEFINE_BUS_SLAVE("DRAM", IMX8MQ_ICS_DRAM, &imx8mq_dram_adj),
  32. DEFINE_BUS_SLAVE("OCRAM", IMX8MQ_ICS_OCRAM, NULL),
  33. DEFINE_BUS_MASTER("A53", IMX8MQ_ICM_A53, IMX8MQ_ICN_NOC),
  34. /* VPUMIX */
  35. DEFINE_BUS_MASTER("VPU", IMX8MQ_ICM_VPU, IMX8MQ_ICN_VIDEO),
  36. DEFINE_BUS_INTERCONNECT("PL301_VIDEO", IMX8MQ_ICN_VIDEO, NULL, IMX8MQ_ICN_NOC),
  37. /* GPUMIX */
  38. DEFINE_BUS_MASTER("GPU", IMX8MQ_ICM_GPU, IMX8MQ_ICN_GPU),
  39. DEFINE_BUS_INTERCONNECT("PL301_GPU", IMX8MQ_ICN_GPU, NULL, IMX8MQ_ICN_NOC),
  40. /* DISPMIX (only for DCSS) */
  41. DEFINE_BUS_MASTER("DC", IMX8MQ_ICM_DCSS, IMX8MQ_ICN_DCSS),
  42. DEFINE_BUS_INTERCONNECT("PL301_DC", IMX8MQ_ICN_DCSS, NULL, IMX8MQ_ICN_NOC),
  43. /* USBMIX */
  44. DEFINE_BUS_MASTER("USB1", IMX8MQ_ICM_USB1, IMX8MQ_ICN_USB),
  45. DEFINE_BUS_MASTER("USB2", IMX8MQ_ICM_USB2, IMX8MQ_ICN_USB),
  46. DEFINE_BUS_INTERCONNECT("PL301_USB", IMX8MQ_ICN_USB, NULL, IMX8MQ_ICN_NOC),
  47. /* PL301_DISPLAY (IPs other than DCSS, inside SUPERMIX) */
  48. DEFINE_BUS_MASTER("CSI1", IMX8MQ_ICM_CSI1, IMX8MQ_ICN_DISPLAY),
  49. DEFINE_BUS_MASTER("CSI2", IMX8MQ_ICM_CSI2, IMX8MQ_ICN_DISPLAY),
  50. DEFINE_BUS_MASTER("LCDIF", IMX8MQ_ICM_LCDIF, IMX8MQ_ICN_DISPLAY),
  51. DEFINE_BUS_INTERCONNECT("PL301_DISPLAY", IMX8MQ_ICN_DISPLAY, NULL, IMX8MQ_ICN_MAIN),
  52. /* AUDIO */
  53. DEFINE_BUS_MASTER("SDMA2", IMX8MQ_ICM_SDMA2, IMX8MQ_ICN_AUDIO),
  54. DEFINE_BUS_INTERCONNECT("PL301_AUDIO", IMX8MQ_ICN_AUDIO, NULL, IMX8MQ_ICN_DISPLAY),
  55. /* ENET */
  56. DEFINE_BUS_MASTER("ENET", IMX8MQ_ICM_ENET, IMX8MQ_ICN_ENET),
  57. DEFINE_BUS_INTERCONNECT("PL301_ENET", IMX8MQ_ICN_ENET, NULL, IMX8MQ_ICN_MAIN),
  58. /* OTHER */
  59. DEFINE_BUS_MASTER("SDMA1", IMX8MQ_ICM_SDMA1, IMX8MQ_ICN_MAIN),
  60. DEFINE_BUS_MASTER("NAND", IMX8MQ_ICM_NAND, IMX8MQ_ICN_MAIN),
  61. DEFINE_BUS_MASTER("USDHC1", IMX8MQ_ICM_USDHC1, IMX8MQ_ICN_MAIN),
  62. DEFINE_BUS_MASTER("USDHC2", IMX8MQ_ICM_USDHC2, IMX8MQ_ICN_MAIN),
  63. DEFINE_BUS_MASTER("PCIE1", IMX8MQ_ICM_PCIE1, IMX8MQ_ICN_MAIN),
  64. DEFINE_BUS_MASTER("PCIE2", IMX8MQ_ICM_PCIE2, IMX8MQ_ICN_MAIN),
  65. DEFINE_BUS_INTERCONNECT("PL301_MAIN", IMX8MQ_ICN_MAIN, NULL,
  66. IMX8MQ_ICN_NOC, IMX8MQ_ICS_OCRAM),
  67. };
  68. static int imx8mq_icc_probe(struct platform_device *pdev)
  69. {
  70. return imx_icc_register(pdev, nodes, ARRAY_SIZE(nodes));
  71. }
  72. static int imx8mq_icc_remove(struct platform_device *pdev)
  73. {
  74. return imx_icc_unregister(pdev);
  75. }
  76. static struct platform_driver imx8mq_icc_driver = {
  77. .probe = imx8mq_icc_probe,
  78. .remove = imx8mq_icc_remove,
  79. .driver = {
  80. .name = "imx8mq-interconnect",
  81. .sync_state = icc_sync_state,
  82. },
  83. };
  84. module_platform_driver(imx8mq_icc_driver);
  85. MODULE_ALIAS("platform:imx8mq-interconnect");
  86. MODULE_AUTHOR("Leonard Crestez <leonard.crestez@nxp.com>");
  87. MODULE_LICENSE("GPL v2");