linux/drivers/mfd/intel-m10-bmc-core.c
Ilpo Järvinen bcababfc60 mfd: intel-m10-bmc: Prefix register defines with M10BMC_N3000
Prefix the M10BMC defines register defines with M10BMC_N3000 to make it
more obvious these are related to some board type. All current
non-N3000 board types have the same layout so they'll be reused. The
less generic makes it more obvious they're not meant for the
generic/interface agnostic code.

Reviewed-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230116100845.6153-8-ilpo.jarvinen@linux.intel.com
2023-01-27 10:37:51 +00:00

123 lines
3.2 KiB
C

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