123 lines
3.2 KiB
C
123 lines
3.2 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Intel MAX 10 Board Management Controller chip - common code
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*
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* Copyright (C) 2018-2020 Intel Corporation. All rights reserved.
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*/
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#include <linux/bitfield.h>
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#include <linux/device.h>
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#include <linux/dev_printk.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/intel-m10-bmc.h>
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#include <linux/module.h>
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static ssize_t bmc_version_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct intel_m10bmc *ddata = dev_get_drvdata(dev);
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unsigned int val;
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int ret;
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ret = m10bmc_sys_read(ddata, ddata->info->csr_map->build_version, &val);
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if (ret)
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return ret;
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return sprintf(buf, "0x%x\n", val);
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}
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static DEVICE_ATTR_RO(bmc_version);
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static ssize_t bmcfw_version_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct intel_m10bmc *ddata = dev_get_drvdata(dev);
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unsigned int val;
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int ret;
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ret = m10bmc_sys_read(ddata, ddata->info->csr_map->fw_version, &val);
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if (ret)
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return ret;
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return sprintf(buf, "0x%x\n", val);
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}
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static DEVICE_ATTR_RO(bmcfw_version);
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static ssize_t mac_address_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct intel_m10bmc *ddata = dev_get_drvdata(dev);
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unsigned int macaddr_low, macaddr_high;
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int ret;
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ret = m10bmc_sys_read(ddata, ddata->info->csr_map->mac_low, &macaddr_low);
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if (ret)
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return ret;
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ret = m10bmc_sys_read(ddata, ddata->info->csr_map->mac_high, &macaddr_high);
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if (ret)
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return ret;
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return sysfs_emit(buf, "%02x:%02x:%02x:%02x:%02x:%02x\n",
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(u8)FIELD_GET(M10BMC_N3000_MAC_BYTE1, macaddr_low),
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(u8)FIELD_GET(M10BMC_N3000_MAC_BYTE2, macaddr_low),
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(u8)FIELD_GET(M10BMC_N3000_MAC_BYTE3, macaddr_low),
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(u8)FIELD_GET(M10BMC_N3000_MAC_BYTE4, macaddr_low),
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(u8)FIELD_GET(M10BMC_N3000_MAC_BYTE5, macaddr_high),
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(u8)FIELD_GET(M10BMC_N3000_MAC_BYTE6, macaddr_high));
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}
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static DEVICE_ATTR_RO(mac_address);
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static ssize_t mac_count_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct intel_m10bmc *ddata = dev_get_drvdata(dev);
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unsigned int macaddr_high;
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int ret;
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ret = m10bmc_sys_read(ddata, ddata->info->csr_map->mac_high, &macaddr_high);
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if (ret)
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return ret;
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return sysfs_emit(buf, "%u\n", (u8)FIELD_GET(M10BMC_N3000_MAC_COUNT, macaddr_high));
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}
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static DEVICE_ATTR_RO(mac_count);
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static struct attribute *m10bmc_attrs[] = {
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&dev_attr_bmc_version.attr,
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&dev_attr_bmcfw_version.attr,
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&dev_attr_mac_address.attr,
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&dev_attr_mac_count.attr,
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NULL,
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};
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static const struct attribute_group m10bmc_group = {
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.attrs = m10bmc_attrs,
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};
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const struct attribute_group *m10bmc_dev_groups[] = {
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&m10bmc_group,
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NULL,
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};
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EXPORT_SYMBOL_GPL(m10bmc_dev_groups);
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int m10bmc_dev_init(struct intel_m10bmc *m10bmc, const struct intel_m10bmc_platform_info *info)
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{
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int ret;
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m10bmc->info = info;
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dev_set_drvdata(m10bmc->dev, m10bmc);
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ret = devm_mfd_add_devices(m10bmc->dev, PLATFORM_DEVID_AUTO,
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info->cells, info->n_cells,
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NULL, 0, NULL);
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if (ret)
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dev_err(m10bmc->dev, "Failed to register sub-devices: %d\n", ret);
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return ret;
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}
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EXPORT_SYMBOL_GPL(m10bmc_dev_init);
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MODULE_DESCRIPTION("Intel MAX 10 BMC core driver");
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MODULE_AUTHOR("Intel Corporation");
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MODULE_LICENSE("GPL v2");
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