3  * Freescale Management Complex (MC) bus driver
11 #define pr_fmt(fmt) "fsl-mc: " fmt
25 #include "fsl-mc-private.h"
28  * Default DMA mask for devices on a fsl-mc bus
35  * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device
36  * @root_mc_bus_dev: fsl-mc device representing the root DPRC
50  * @mc_region_type: Type of MC region for the range being translated
51  * @start_mc_offset: Start MC offset of the range being translated
52  * @end_mc_offset: MC offset of the first byte after the range (last MC
69  * @dev: the fsl-mc device to match against
70  * @drv: the device driver to search for matching fsl-mc object type
124 	if (add_uevent_var(env, "MODALIAS=fsl-mc:v%08Xd%s",  in fsl_mc_bus_uevent()
152 	return sprintf(buf, "fsl-mc:v%08Xd%s\n", mc_dev->obj_desc.vendor,  in modalias_show()
209 	.name = "fsl-mc",
367  * MC bus
403  * MC bus
433 	/* send command to mc*/  in mc_get_version()
448  * fsl_mc_get_version - function to retrieve the MC f/w version information
450  * Return:	mc version when called after fsl-mc-bus probe; NULL otherwise.
524 	struct fsl_mc *mc;  in translate_mc_addr()  local
527 	mc = dev_get_drvdata(root_dprc_dev->parent);  in translate_mc_addr()
529 	if (mc->num_translation_ranges == 0) {  in translate_mc_addr()
537 	for (i = 0; i < mc->num_translation_ranges; i++) {  in translate_mc_addr()
539 			&mc->translation_ranges[i];  in translate_mc_addr()
570 		 * This function should not have been called for this MC object  in fsl_mc_device_get_mmio_regions()
596 		 * Older MC only returned region offset and no base address  in fsl_mc_device_get_mmio_regions()
610 				"Invalid MC offset: %#x (for %s.%d\'s region %d)\n",  in fsl_mc_device_get_mmio_regions()
617 		regions[i].name = "fsl-mc object MMIO region";  in fsl_mc_device_get_mmio_regions()
656  * Add a newly discovered fsl-mc device to be visible in Linux
675 		 * Allocate an MC bus device object:  in fsl_mc_device_add()
714 		 * parent DPRC's MC portal instead of the child DPRC's MC  in fsl_mc_device_add()
719 		 * given MC object, using the same MC portal.  in fsl_mc_device_add()
755 	 * Get MMIO regions for the device from the MC:  in fsl_mc_device_add()
793  * fsl_mc_device_remove - Remove an fsl-mc device from being visible to
796  * @mc_dev: Pointer to an fsl-mc device
915 		 * 'fsl,qoriq-mc' node. In this case, identity mapping  in get_mc_addr_translation_ranges()
948  * fsl_mc_bus_probe - callback invoked when the root MC bus is being
955 	struct fsl_mc *mc;  in fsl_mc_bus_probe()  local
963 	mc = devm_kzalloc(&pdev->dev, sizeof(*mc), GFP_KERNEL);  in fsl_mc_bus_probe()
964 	if (!mc)  in fsl_mc_bus_probe()
967 	platform_set_drvdata(pdev, mc);  in fsl_mc_bus_probe()
971 		mc->fsl_mc_regs = devm_ioremap_resource(&pdev->dev, plat_res);  in fsl_mc_bus_probe()
973 	if (mc->fsl_mc_regs && IS_ENABLED(CONFIG_ACPI) &&  in fsl_mc_bus_probe()
975 		mc_stream_id = readl(mc->fsl_mc_regs + FSL_MC_FAPR);  in fsl_mc_bus_probe()
991 	 * Get physical address of MC portal for the root DPRC:  in fsl_mc_bus_probe()
1009 	dev_info(&pdev->dev, "MC firmware version: %u.%u.%u\n",  in fsl_mc_bus_probe()
1014 						&mc->translation_ranges,  in fsl_mc_bus_probe()
1015 						&mc->num_translation_ranges);  in fsl_mc_bus_probe()
1044 	mc->root_mc_bus_dev = mc_bus_dev;  in fsl_mc_bus_probe()
1054  * fsl_mc_bus_remove - callback invoked when the root MC bus is being
1059 	struct fsl_mc *mc = platform_get_drvdata(pdev);  in fsl_mc_bus_remove()  local
1061 	if (!fsl_mc_is_root_dprc(&mc->root_mc_bus_dev->dev))  in fsl_mc_bus_remove()
1064 	fsl_mc_device_remove(mc->root_mc_bus_dev);  in fsl_mc_bus_remove()
1066 	fsl_destroy_mc_io(mc->root_mc_bus_dev->mc_io);  in fsl_mc_bus_remove()
1067 	mc->root_mc_bus_dev->mc_io = NULL;  in fsl_mc_bus_remove()
1073 	{.compatible = "fsl,qoriq-mc",},