^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Freescale Management Complex (MC) bus driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright 2019-2020 NXP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: German Rivera <German.Rivera@freescale.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define pr_fmt(fmt) "fsl-mc: " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/of_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/of_address.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/limits.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/bitops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/msi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/iommu.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include "fsl-mc-private.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * Default DMA mask for devices on a fsl-mc bus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define FSL_MC_DEFAULT_DMA_MASK (~0ULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static struct fsl_mc_version mc_version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * @root_mc_bus_dev: fsl-mc device representing the root DPRC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * @num_translation_ranges: number of entries in addr_translation_ranges
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * @translation_ranges: array of bus to system address translation ranges
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct fsl_mc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct fsl_mc_device *root_mc_bus_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) u8 num_translation_ranges;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct fsl_mc_addr_translation_range *translation_ranges;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) void *fsl_mc_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * struct fsl_mc_addr_translation_range - bus to system address translation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * @mc_region_type: Type of MC region for the range being translated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * @start_mc_offset: Start MC offset of the range being translated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * @end_mc_offset: MC offset of the first byte after the range (last MC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * offset of the range is end_mc_offset - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * @start_phys_addr: system physical address corresponding to start_mc_addr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct fsl_mc_addr_translation_range {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) enum dprc_region_type mc_region_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) u64 start_mc_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) u64 end_mc_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) phys_addr_t start_phys_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define FSL_MC_FAPR 0x28
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define MC_FAPR_PL BIT(18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define MC_FAPR_BMT BIT(17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static phys_addr_t mc_portal_base_phys_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * fsl_mc_bus_match - device to driver matching callback
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) * @dev: the fsl-mc device to match against
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) * @drv: the device driver to search for matching fsl-mc object type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) * structures
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) * Returns 1 on success, 0 otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static int fsl_mc_bus_match(struct device *dev, struct device_driver *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) const struct fsl_mc_device_id *id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(drv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) bool found = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /* When driver_override is set, only bind to the matching driver */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (mc_dev->driver_override) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) found = !strcmp(mc_dev->driver_override, mc_drv->driver.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) if (!mc_drv->match_id_table)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * If the object is not 'plugged' don't match.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * Only exception is the root DPRC, which is a special case.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) if ((mc_dev->obj_desc.state & FSL_MC_OBJ_STATE_PLUGGED) == 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) !fsl_mc_is_root_dprc(&mc_dev->dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) * Traverse the match_id table of the given driver, trying to find
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * a matching for the given device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) for (id = mc_drv->match_id_table; id->vendor != 0x0; id++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if (id->vendor == mc_dev->obj_desc.vendor &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) strcmp(id->obj_type, mc_dev->obj_desc.type) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) found = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) dev_dbg(dev, "%smatched\n", found ? "" : "not ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) return found;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * fsl_mc_bus_uevent - callback invoked when a device is added
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static int fsl_mc_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (add_uevent_var(env, "MODALIAS=fsl-mc:v%08Xd%s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) mc_dev->obj_desc.vendor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) mc_dev->obj_desc.type))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) static int fsl_mc_dma_configure(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) struct device *dma_dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) u32 input_id = mc_dev->icid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) while (dev_is_fsl_mc(dma_dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) dma_dev = dma_dev->parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) if (dev_of_node(dma_dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return of_dma_configure_id(dev, dma_dev->of_node, 0, &input_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) return acpi_dma_configure_id(dev, DEV_DMA_COHERENT, &input_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) return sprintf(buf, "fsl-mc:v%08Xd%s\n", mc_dev->obj_desc.vendor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) mc_dev->obj_desc.type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) static DEVICE_ATTR_RO(modalias);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static ssize_t driver_override_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) char *driver_override, *old = mc_dev->driver_override;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) char *cp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) if (WARN_ON(dev->bus != &fsl_mc_bus_type))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) if (count >= (PAGE_SIZE - 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) driver_override = kstrndup(buf, count, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) if (!driver_override)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) cp = strchr(driver_override, '\n');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) if (cp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) *cp = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (strlen(driver_override)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) mc_dev->driver_override = driver_override;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) kfree(driver_override);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) mc_dev->driver_override = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) kfree(old);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static ssize_t driver_override_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) return snprintf(buf, PAGE_SIZE, "%s\n", mc_dev->driver_override);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) static DEVICE_ATTR_RW(driver_override);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) static struct attribute *fsl_mc_dev_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) &dev_attr_modalias.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) &dev_attr_driver_override.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) ATTRIBUTE_GROUPS(fsl_mc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) struct bus_type fsl_mc_bus_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) .name = "fsl-mc",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) .match = fsl_mc_bus_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) .uevent = fsl_mc_bus_uevent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) .dma_configure = fsl_mc_dma_configure,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) .dev_groups = fsl_mc_dev_groups,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) EXPORT_SYMBOL_GPL(fsl_mc_bus_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) struct device_type fsl_mc_bus_dprc_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) .name = "fsl_mc_bus_dprc"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) EXPORT_SYMBOL_GPL(fsl_mc_bus_dprc_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct device_type fsl_mc_bus_dpni_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) .name = "fsl_mc_bus_dpni"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpni_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) struct device_type fsl_mc_bus_dpio_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) .name = "fsl_mc_bus_dpio"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpio_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) struct device_type fsl_mc_bus_dpsw_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) .name = "fsl_mc_bus_dpsw"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpsw_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) struct device_type fsl_mc_bus_dpbp_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) .name = "fsl_mc_bus_dpbp"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpbp_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) struct device_type fsl_mc_bus_dpcon_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) .name = "fsl_mc_bus_dpcon"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpcon_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) struct device_type fsl_mc_bus_dpmcp_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) .name = "fsl_mc_bus_dpmcp"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpmcp_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) struct device_type fsl_mc_bus_dpmac_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) .name = "fsl_mc_bus_dpmac"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpmac_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) struct device_type fsl_mc_bus_dprtc_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) .name = "fsl_mc_bus_dprtc"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) EXPORT_SYMBOL_GPL(fsl_mc_bus_dprtc_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) struct device_type fsl_mc_bus_dpseci_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) .name = "fsl_mc_bus_dpseci"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpseci_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) struct device_type fsl_mc_bus_dpdmux_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) .name = "fsl_mc_bus_dpdmux"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdmux_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) struct device_type fsl_mc_bus_dpdcei_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) .name = "fsl_mc_bus_dpdcei"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdcei_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) struct device_type fsl_mc_bus_dpaiop_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) .name = "fsl_mc_bus_dpaiop"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpaiop_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) struct device_type fsl_mc_bus_dpci_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) .name = "fsl_mc_bus_dpci"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpci_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) struct device_type fsl_mc_bus_dpdmai_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) .name = "fsl_mc_bus_dpdmai"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdmai_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) static struct device_type *fsl_mc_get_device_type(const char *type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) static const struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) struct device_type *dev_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) const char *type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) } dev_types[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) { &fsl_mc_bus_dprc_type, "dprc" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) { &fsl_mc_bus_dpni_type, "dpni" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) { &fsl_mc_bus_dpio_type, "dpio" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) { &fsl_mc_bus_dpsw_type, "dpsw" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) { &fsl_mc_bus_dpbp_type, "dpbp" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) { &fsl_mc_bus_dpcon_type, "dpcon" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) { &fsl_mc_bus_dpmcp_type, "dpmcp" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) { &fsl_mc_bus_dpmac_type, "dpmac" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) { &fsl_mc_bus_dprtc_type, "dprtc" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) { &fsl_mc_bus_dpseci_type, "dpseci" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) { &fsl_mc_bus_dpdmux_type, "dpdmux" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) { &fsl_mc_bus_dpdcei_type, "dpdcei" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) { &fsl_mc_bus_dpaiop_type, "dpaiop" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) { &fsl_mc_bus_dpci_type, "dpci" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) { &fsl_mc_bus_dpdmai_type, "dpdmai" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) { NULL, NULL }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) for (i = 0; dev_types[i].dev_type; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) if (!strcmp(dev_types[i].type, type))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) return dev_types[i].dev_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) static int fsl_mc_driver_probe(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) struct fsl_mc_driver *mc_drv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) mc_drv = to_fsl_mc_driver(dev->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) error = mc_drv->probe(mc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) if (error != -EPROBE_DEFER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) dev_err(dev, "%s failed: %d\n", __func__, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) static int fsl_mc_driver_remove(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(dev->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) error = mc_drv->remove(mc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) dev_err(dev, "%s failed: %d\n", __func__, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) static void fsl_mc_driver_shutdown(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(dev->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) mc_drv->shutdown(mc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) * __fsl_mc_driver_register - registers a child device driver with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) * MC bus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) * This function is implicitly invoked from the registration function of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) * fsl_mc device drivers, which is generated by the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) * module_fsl_mc_driver() macro.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) int __fsl_mc_driver_register(struct fsl_mc_driver *mc_driver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) struct module *owner)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) mc_driver->driver.owner = owner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) mc_driver->driver.bus = &fsl_mc_bus_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) if (mc_driver->probe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) mc_driver->driver.probe = fsl_mc_driver_probe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) if (mc_driver->remove)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) mc_driver->driver.remove = fsl_mc_driver_remove;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) if (mc_driver->shutdown)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) mc_driver->driver.shutdown = fsl_mc_driver_shutdown;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) error = driver_register(&mc_driver->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) pr_err("driver_register() failed for %s: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) mc_driver->driver.name, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) EXPORT_SYMBOL_GPL(__fsl_mc_driver_register);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) * fsl_mc_driver_unregister - unregisters a device driver from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) * MC bus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) void fsl_mc_driver_unregister(struct fsl_mc_driver *mc_driver)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) driver_unregister(&mc_driver->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) EXPORT_SYMBOL_GPL(fsl_mc_driver_unregister);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) * mc_get_version() - Retrieves the Management Complex firmware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) * version information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) * @mc_io: Pointer to opaque I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) * @mc_ver_info: Returned version information structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) static int mc_get_version(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) struct fsl_mc_version *mc_ver_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) struct dpmng_rsp_get_version *rsp_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) cmd.header = mc_encode_cmd_header(DPMNG_CMDID_GET_VERSION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) err = mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) /* retrieve response parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) rsp_params = (struct dpmng_rsp_get_version *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) mc_ver_info->revision = le32_to_cpu(rsp_params->revision);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) mc_ver_info->major = le32_to_cpu(rsp_params->version_major);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) mc_ver_info->minor = le32_to_cpu(rsp_params->version_minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) * fsl_mc_get_version - function to retrieve the MC f/w version information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) * Return: mc version when called after fsl-mc-bus probe; NULL otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) struct fsl_mc_version *fsl_mc_get_version(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) if (mc_version.major)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) return &mc_version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) EXPORT_SYMBOL_GPL(fsl_mc_get_version);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) * fsl_mc_get_root_dprc - function to traverse to the root dprc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) void fsl_mc_get_root_dprc(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) struct device **root_dprc_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) if (!dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) *root_dprc_dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) } else if (!dev_is_fsl_mc(dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) *root_dprc_dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) *root_dprc_dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) while (dev_is_fsl_mc((*root_dprc_dev)->parent))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) *root_dprc_dev = (*root_dprc_dev)->parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) static int get_dprc_attr(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) int container_id, struct dprc_attributes *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) u16 dprc_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) error = dprc_open(mc_io, 0, container_id, &dprc_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) dev_err(mc_io->dev, "dprc_open() failed: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) memset(attr, 0, sizeof(struct dprc_attributes));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) error = dprc_get_attributes(mc_io, 0, dprc_handle, attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) dev_err(mc_io->dev, "dprc_get_attributes() failed: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) goto common_cleanup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) common_cleanup:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) (void)dprc_close(mc_io, 0, dprc_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) static int get_dprc_icid(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) int container_id, u32 *icid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) struct dprc_attributes attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) error = get_dprc_attr(mc_io, container_id, &attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) if (error == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) *icid = attr.icid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) static int translate_mc_addr(struct fsl_mc_device *mc_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) enum dprc_region_type mc_region_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) u64 mc_offset, phys_addr_t *phys_addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) struct device *root_dprc_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) struct fsl_mc *mc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) fsl_mc_get_root_dprc(&mc_dev->dev, &root_dprc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) mc = dev_get_drvdata(root_dprc_dev->parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) if (mc->num_translation_ranges == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) * Do identity mapping:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) *phys_addr = mc_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) for (i = 0; i < mc->num_translation_ranges; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) struct fsl_mc_addr_translation_range *range =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) &mc->translation_ranges[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) if (mc_region_type == range->mc_region_type &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) mc_offset >= range->start_mc_offset &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) mc_offset < range->end_mc_offset) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) *phys_addr = range->start_phys_addr +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) (mc_offset - range->start_mc_offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) struct fsl_mc_device *mc_bus_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) struct resource *regions;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) struct fsl_mc_obj_desc *obj_desc = &mc_dev->obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) struct device *parent_dev = mc_dev->dev.parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) enum dprc_region_type mc_region_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) if (is_fsl_mc_bus_dprc(mc_dev) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) is_fsl_mc_bus_dpmcp(mc_dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) mc_region_type = DPRC_REGION_TYPE_MC_PORTAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) } else if (is_fsl_mc_bus_dpio(mc_dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) mc_region_type = DPRC_REGION_TYPE_QBMAN_PORTAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) * This function should not have been called for this MC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) * type, as this object type is not supposed to have MMIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) * regions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) regions = kmalloc_array(obj_desc->region_count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) sizeof(regions[0]), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) if (!regions)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) for (i = 0; i < obj_desc->region_count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) struct dprc_region_desc region_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) error = dprc_get_obj_region(mc_bus_dev->mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) mc_bus_dev->mc_handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) obj_desc->type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) obj_desc->id, i, ®ion_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) dev_err(parent_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) "dprc_get_obj_region() failed: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) goto error_cleanup_regions;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) * Older MC only returned region offset and no base address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) * If base address is in the region_desc use it otherwise
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) * revert to old mechanism
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) if (region_desc.base_address) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) regions[i].start = region_desc.base_address +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) region_desc.base_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) error = translate_mc_addr(mc_dev, mc_region_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) region_desc.base_offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) ®ions[i].start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) * Some versions of the MC firmware wrongly report
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) * 0 for register base address of the DPMCP associated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) * with child DPRC objects thus rendering them unusable.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) * This is particularly troublesome in ACPI boot
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) * scenarios where the legacy way of extracting this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) * base address from the device tree does not apply.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) * Given that DPMCPs share the same base address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) * workaround this by using the base address extracted
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) * from the root DPRC container.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) if (is_fsl_mc_bus_dprc(mc_dev) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) regions[i].start == region_desc.base_offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) regions[i].start += mc_portal_base_phys_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) dev_err(parent_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) "Invalid MC offset: %#x (for %s.%d\'s region %d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) region_desc.base_offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) obj_desc->type, obj_desc->id, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) goto error_cleanup_regions;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) regions[i].end = regions[i].start + region_desc.size - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) regions[i].name = "fsl-mc object MMIO region";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) regions[i].flags = region_desc.flags & IORESOURCE_BITS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) regions[i].flags |= IORESOURCE_MEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) mc_dev->regions = regions;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) error_cleanup_regions:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) kfree(regions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) * fsl_mc_is_root_dprc - function to check if a given device is a root dprc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) bool fsl_mc_is_root_dprc(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) struct device *root_dprc_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) fsl_mc_get_root_dprc(dev, &root_dprc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) if (!root_dprc_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) return dev == root_dprc_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) static void fsl_mc_device_release(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) kfree(mc_dev->regions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) if (is_fsl_mc_bus_dprc(mc_dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) kfree(to_fsl_mc_bus(mc_dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) kfree(mc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) * Add a newly discovered fsl-mc device to be visible in Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) int fsl_mc_device_add(struct fsl_mc_obj_desc *obj_desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) struct device *parent_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) struct fsl_mc_device **new_mc_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) struct fsl_mc_device *mc_dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) struct fsl_mc_bus *mc_bus = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) struct fsl_mc_device *parent_mc_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) if (dev_is_fsl_mc(parent_dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) parent_mc_dev = to_fsl_mc_device(parent_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) parent_mc_dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) if (strcmp(obj_desc->type, "dprc") == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) * Allocate an MC bus device object:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) mc_bus = kzalloc(sizeof(*mc_bus), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) if (!mc_bus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) mutex_init(&mc_bus->scan_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) mc_dev = &mc_bus->mc_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) * Allocate a regular fsl_mc_device object:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) mc_dev = kzalloc(sizeof(*mc_dev), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) if (!mc_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) mc_dev->obj_desc = *obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) mc_dev->mc_io = mc_io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) device_initialize(&mc_dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) mc_dev->dev.parent = parent_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) mc_dev->dev.bus = &fsl_mc_bus_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) mc_dev->dev.release = fsl_mc_device_release;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) mc_dev->dev.type = fsl_mc_get_device_type(obj_desc->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) if (!mc_dev->dev.type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) error = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) dev_err(parent_dev, "unknown device type %s\n", obj_desc->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) goto error_cleanup_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) dev_set_name(&mc_dev->dev, "%s.%d", obj_desc->type, obj_desc->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) if (strcmp(obj_desc->type, "dprc") == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) struct fsl_mc_io *mc_io2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) mc_dev->flags |= FSL_MC_IS_DPRC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) * To get the DPRC's ICID, we need to open the DPRC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) * in get_dprc_icid(). For child DPRCs, we do so using the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) * parent DPRC's MC portal instead of the child DPRC's MC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) * portal, in case the child DPRC is already opened with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) * its own portal (e.g., the DPRC used by AIOP).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) * NOTE: There cannot be more than one active open for a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) * given MC object, using the same MC portal.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) if (parent_mc_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) * device being added is a child DPRC device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) mc_io2 = parent_mc_dev->mc_io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) * device being added is the root DPRC device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) if (!mc_io) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) error = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) goto error_cleanup_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) mc_io2 = mc_io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) error = get_dprc_icid(mc_io2, obj_desc->id, &mc_dev->icid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) goto error_cleanup_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) * A non-DPRC object has to be a child of a DPRC, use the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) * parent's ICID and interrupt domain.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) mc_dev->icid = parent_mc_dev->icid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) mc_dev->dma_mask = FSL_MC_DEFAULT_DMA_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) mc_dev->dev.dma_mask = &mc_dev->dma_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) mc_dev->dev.coherent_dma_mask = mc_dev->dma_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) dev_set_msi_domain(&mc_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) dev_get_msi_domain(&parent_mc_dev->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) * Get MMIO regions for the device from the MC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) * NOTE: the root DPRC is a special case as its MMIO region is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) * obtained from the device tree
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) if (parent_mc_dev && obj_desc->region_count != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) error = fsl_mc_device_get_mmio_regions(mc_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) parent_mc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) goto error_cleanup_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) * The device-specific probe callback will get invoked by device_add()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) error = device_add(&mc_dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) dev_err(parent_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) "device_add() failed for device %s: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) dev_name(&mc_dev->dev), error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) goto error_cleanup_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) dev_dbg(parent_dev, "added %s\n", dev_name(&mc_dev->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) *new_mc_dev = mc_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) error_cleanup_dev:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) kfree(mc_dev->regions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) kfree(mc_bus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) kfree(mc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) EXPORT_SYMBOL_GPL(fsl_mc_device_add);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) * fsl_mc_device_remove - Remove an fsl-mc device from being visible to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) * Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) * @mc_dev: Pointer to an fsl-mc device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) void fsl_mc_device_remove(struct fsl_mc_device *mc_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) kfree(mc_dev->driver_override);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) mc_dev->driver_override = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) * The device-specific remove callback will get invoked by device_del()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) device_del(&mc_dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) put_device(&mc_dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) EXPORT_SYMBOL_GPL(fsl_mc_device_remove);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) struct fsl_mc_device *fsl_mc_get_endpoint(struct fsl_mc_device *mc_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) struct fsl_mc_device *mc_bus_dev, *endpoint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) struct fsl_mc_obj_desc endpoint_desc = {{ 0 }};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) struct dprc_endpoint endpoint1 = {{ 0 }};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) struct dprc_endpoint endpoint2 = {{ 0 }};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) int state, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) strcpy(endpoint1.type, mc_dev->obj_desc.type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) endpoint1.id = mc_dev->obj_desc.id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) err = dprc_get_connection(mc_bus_dev->mc_io, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) mc_bus_dev->mc_handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) &endpoint1, &endpoint2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) &state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) if (err == -ENOTCONN || state == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) return ERR_PTR(-ENOTCONN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) dev_err(&mc_bus_dev->dev, "dprc_get_connection() = %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) return ERR_PTR(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) strcpy(endpoint_desc.type, endpoint2.type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) endpoint_desc.id = endpoint2.id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) endpoint = fsl_mc_device_lookup(&endpoint_desc, mc_bus_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) return endpoint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) EXPORT_SYMBOL_GPL(fsl_mc_get_endpoint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) static int parse_mc_ranges(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) int *paddr_cells,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) int *mc_addr_cells,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) int *mc_size_cells,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) const __be32 **ranges_start)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) const __be32 *prop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) int range_tuple_cell_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) int ranges_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) int tuple_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) struct device_node *mc_node = dev->of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) *ranges_start = of_get_property(mc_node, "ranges", &ranges_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) if (!(*ranges_start) || !ranges_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) dev_warn(dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) "missing or empty ranges property for device tree node '%pOFn'\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) mc_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) *paddr_cells = of_n_addr_cells(mc_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) prop = of_get_property(mc_node, "#address-cells", NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) if (prop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) *mc_addr_cells = be32_to_cpup(prop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) *mc_addr_cells = *paddr_cells;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) prop = of_get_property(mc_node, "#size-cells", NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) if (prop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) *mc_size_cells = be32_to_cpup(prop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) *mc_size_cells = of_n_size_cells(mc_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) range_tuple_cell_count = *paddr_cells + *mc_addr_cells +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) *mc_size_cells;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) tuple_len = range_tuple_cell_count * sizeof(__be32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) if (ranges_len % tuple_len != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) dev_err(dev, "malformed ranges property '%pOFn'\n", mc_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) return ranges_len / tuple_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) static int get_mc_addr_translation_ranges(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) struct fsl_mc_addr_translation_range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) **ranges,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) u8 *num_ranges)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) int paddr_cells;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) int mc_addr_cells;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) int mc_size_cells;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) const __be32 *ranges_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) const __be32 *cell;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) ret = parse_mc_ranges(dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) &paddr_cells,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) &mc_addr_cells,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) &mc_size_cells,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) &ranges_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) *num_ranges = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) if (!ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) * Missing or empty ranges property ("ranges;") for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) * 'fsl,qoriq-mc' node. In this case, identity mapping
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) * will be used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) *ranges = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) *ranges = devm_kcalloc(dev, *num_ranges,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) sizeof(struct fsl_mc_addr_translation_range),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) if (!(*ranges))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) cell = ranges_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) for (i = 0; i < *num_ranges; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) struct fsl_mc_addr_translation_range *range = &(*ranges)[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) range->mc_region_type = of_read_number(cell, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) range->start_mc_offset = of_read_number(cell + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) mc_addr_cells - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) cell += mc_addr_cells;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) range->start_phys_addr = of_read_number(cell, paddr_cells);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) cell += paddr_cells;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) range->end_mc_offset = range->start_mc_offset +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) of_read_number(cell, mc_size_cells);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) cell += mc_size_cells;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) * fsl_mc_bus_probe - callback invoked when the root MC bus is being
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) * added
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) static int fsl_mc_bus_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) struct fsl_mc_obj_desc obj_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) struct fsl_mc *mc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) struct fsl_mc_device *mc_bus_dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) struct fsl_mc_io *mc_io = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) int container_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) phys_addr_t mc_portal_phys_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) u32 mc_portal_size, mc_stream_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) struct resource *plat_res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) mc = devm_kzalloc(&pdev->dev, sizeof(*mc), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) if (!mc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) platform_set_drvdata(pdev, mc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) plat_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) if (plat_res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) mc->fsl_mc_regs = devm_ioremap_resource(&pdev->dev, plat_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) if (IS_ERR(mc->fsl_mc_regs))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) return PTR_ERR(mc->fsl_mc_regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) if (mc->fsl_mc_regs && IS_ENABLED(CONFIG_ACPI) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) !dev_of_node(&pdev->dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) mc_stream_id = readl(mc->fsl_mc_regs + FSL_MC_FAPR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) * HW ORs the PL and BMT bit, places the result in bit 15 of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) * the StreamID and ORs in the ICID. Calculate it accordingly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) mc_stream_id = (mc_stream_id & 0xffff) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) ((mc_stream_id & (MC_FAPR_PL | MC_FAPR_BMT)) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) 0x4000 : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) error = acpi_dma_configure_id(&pdev->dev, DEV_DMA_COHERENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) &mc_stream_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) dev_warn(&pdev->dev, "failed to configure dma: %d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) * Get physical address of MC portal for the root DPRC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) plat_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) mc_portal_phys_addr = plat_res->start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) mc_portal_size = resource_size(plat_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) mc_portal_base_phys_addr = mc_portal_phys_addr & ~0x3ffffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) error = fsl_create_mc_io(&pdev->dev, mc_portal_phys_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) mc_portal_size, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) FSL_MC_IO_ATOMIC_CONTEXT_PORTAL, &mc_io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) error = mc_get_version(mc_io, 0, &mc_version);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) if (error != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) dev_err(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) "mc_get_version() failed with error %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) goto error_cleanup_mc_io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) dev_info(&pdev->dev, "MC firmware version: %u.%u.%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) mc_version.major, mc_version.minor, mc_version.revision);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) if (dev_of_node(&pdev->dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) error = get_mc_addr_translation_ranges(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) &mc->translation_ranges,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) &mc->num_translation_ranges);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) goto error_cleanup_mc_io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) error = dprc_get_container_id(mc_io, 0, &container_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) dev_err(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) "dprc_get_container_id() failed: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) goto error_cleanup_mc_io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) memset(&obj_desc, 0, sizeof(struct fsl_mc_obj_desc));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) error = dprc_get_api_version(mc_io, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) &obj_desc.ver_major,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) &obj_desc.ver_minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) goto error_cleanup_mc_io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) obj_desc.vendor = FSL_MC_VENDOR_FREESCALE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) strcpy(obj_desc.type, "dprc");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) obj_desc.id = container_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) obj_desc.irq_count = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) obj_desc.region_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) error = fsl_mc_device_add(&obj_desc, mc_io, &pdev->dev, &mc_bus_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) goto error_cleanup_mc_io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) mc->root_mc_bus_dev = mc_bus_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) mc_bus_dev->dev.fwnode = pdev->dev.fwnode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) error_cleanup_mc_io:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) fsl_destroy_mc_io(mc_io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) * fsl_mc_bus_remove - callback invoked when the root MC bus is being
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) * removed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) static int fsl_mc_bus_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) struct fsl_mc *mc = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) if (!fsl_mc_is_root_dprc(&mc->root_mc_bus_dev->dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) fsl_mc_device_remove(mc->root_mc_bus_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) fsl_destroy_mc_io(mc->root_mc_bus_dev->mc_io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) mc->root_mc_bus_dev->mc_io = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) static const struct of_device_id fsl_mc_bus_match_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) {.compatible = "fsl,qoriq-mc",},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) MODULE_DEVICE_TABLE(of, fsl_mc_bus_match_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) static const struct acpi_device_id fsl_mc_bus_acpi_match_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) {"NXP0008", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) MODULE_DEVICE_TABLE(acpi, fsl_mc_bus_acpi_match_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) static struct platform_driver fsl_mc_bus_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) .name = "fsl_mc_bus",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) .pm = NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) .of_match_table = fsl_mc_bus_match_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) .acpi_match_table = fsl_mc_bus_acpi_match_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) .probe = fsl_mc_bus_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) .remove = fsl_mc_bus_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) static int __init fsl_mc_bus_driver_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) error = bus_register(&fsl_mc_bus_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) pr_err("bus type registration failed: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) goto error_cleanup_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) error = platform_driver_register(&fsl_mc_bus_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) pr_err("platform_driver_register() failed: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) goto error_cleanup_bus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) error = dprc_driver_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) goto error_cleanup_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) error = fsl_mc_allocator_driver_init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) goto error_cleanup_dprc_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) error_cleanup_dprc_driver:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) dprc_driver_exit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) error_cleanup_driver:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) platform_driver_unregister(&fsl_mc_bus_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) error_cleanup_bus:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) bus_unregister(&fsl_mc_bus_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) error_cleanup_cache:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) postcore_initcall(fsl_mc_bus_driver_init);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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