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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Place in devicetree.cb:
*
* chip drivers/ipmi/ocp # OCP specific IPMI porting
device pnp ca2.1 on end
* end
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pnp.h>
#include <string.h>
#include <intelblocks/cpulib.h>
#include <arch/cpu.h>
#include "chip.h"
#include "drivers/ipmi/ipmi_kcs.h"
#include "ipmi_ocp.h"
static int ipmi_set_processor_information_param1(struct device *dev)
{
int ret;
struct ipmi_processor_info_param1_req req1 = {0};
struct ipmi_rsp rsp;
int mfid = CONFIG_IPMI_OCP_MANU_ID;
memcpy(&req1.data.manufacturer_id, &mfid, 3);
printk(BIOS_DEBUG, "IPMI BMC manufacturer id: %02x%02x%02x\n",
req1.data.manufacturer_id[2], req1.data.manufacturer_id[1],
req1.data.manufacturer_id[0]);
req1.data.index = 0;
req1.data.parameter_selector = 1;
/* Get processor name. */
fill_processor_name(req1.product_name);
printk(BIOS_DEBUG, "IPMI BMC CPU NAME: %s.\n", req1.product_name);
ret = ipmi_kcs_message(dev->path.pnp.port, IPMI_NETFN_OEM_COMMON, 0,
IPMI_BMC_SET_PROCESSOR_INFORMATION, (u8 *) &req1,
sizeof(req1), (u8 *) &rsp, sizeof(rsp));
if (ret < sizeof(struct ipmi_rsp) || rsp.completion_code) {
printk(BIOS_ERR, "IPMI BMC: %s command failed (ret=%d rsp=0x%x)\n",
__func__, ret, rsp.completion_code);
return CB_ERR;
}
return CB_SUCCESS;
}
static int ipmi_set_processor_information_param2(struct device *dev)
{
int ret;
struct ipmi_processor_info_param2_req req2 = {0};
struct ipmi_rsp rsp;
uint8_t stepping_id;
int mfid = CONFIG_IPMI_OCP_MANU_ID;
unsigned int core_count, thread_count;
struct cpuinfo_x86 c;
memcpy(&req2.data.manufacturer_id, &mfid, 3);
printk(BIOS_DEBUG, "IPMI BMC manufacturer id: %02x%02x%02x\n",
req2.data.manufacturer_id[2], req2.data.manufacturer_id[1],
req2.data.manufacturer_id[0]);
req2.data.index = 0;
req2.data.parameter_selector = 2;
/* Get core number and thread number. */
cpu_read_topology(&core_count, &thread_count);
req2.core_number = core_count;
req2.thread_number = thread_count;
printk(BIOS_DEBUG, "IPMI BMC CPU has %u cores, %u threads enabled.\n",
req2.core_number, req2.thread_number);
/* Get processor frequency. */
req2.processor_freq = 100 * cpu_get_max_ratio();
printk(BIOS_DEBUG, "IPMI BMC CPU frequency is %u MHz.\n",
req2.processor_freq);
/* Get revision. */
get_fms(&c, cpuid_eax(1));
stepping_id = c.x86_mask;
printk(BIOS_DEBUG, "IPMI BMC CPU stepping id is %x.\n", stepping_id);
switch (stepping_id) {
/* TBD */
case 0x0a:
req2.revision[0] = 'A';
req2.revision[1] = '0';
break;
default:
req2.revision[0] = 'X';
req2.revision[1] = 'X';
}
ret = ipmi_kcs_message(dev->path.pnp.port, IPMI_NETFN_OEM_COMMON, 0,
IPMI_BMC_SET_PROCESSOR_INFORMATION, (u8 *) &req2,
sizeof(req2), (u8 *) &rsp, sizeof(rsp));
if (ret < sizeof(struct ipmi_rsp) || rsp.completion_code) {
printk(BIOS_ERR, "IPMI: %s command failed (ret=%d rsp=0x%x)\n",
__func__, ret, rsp.completion_code);
return CB_ERR;
}
return CB_SUCCESS;
}
static void ipmi_set_processor_information(struct device *dev)
{
if (ipmi_set_processor_information_param1(dev))
printk(BIOS_ERR, "IPMI BMC set param 1 processor info failed\n");
if (ipmi_set_processor_information_param2(dev))
printk(BIOS_ERR, "IPMI BMC set param 2 processor info failed\n");
}
static void ipmi_ocp_init(struct device *dev)
{
/* Add OCP specific IPMI command */
}
static void ipmi_ocp_final(struct device *dev)
{
/* Add OCP specific IPMI command */
/* Send processor information */
ipmi_set_processor_information(dev);
}
static void ipmi_set_resources(struct device *dev)
{
struct resource *res;
for (res = dev->resource_list; res; res = res->next) {
if (!(res->flags & IORESOURCE_ASSIGNED))
continue;
res->flags |= IORESOURCE_STORED;
report_resource_stored(dev, res, "");
}
}
static void ipmi_read_resources(struct device *dev)
{
struct resource *res = new_resource(dev, 0);
res->base = dev->path.pnp.port;
res->size = 2;
res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
}
static struct device_operations ops = {
.read_resources = ipmi_read_resources,
.set_resources = ipmi_set_resources,
.init = ipmi_ocp_init,
.final = ipmi_ocp_final,
};
static void enable_dev(struct device *dev)
{
if (dev->path.type != DEVICE_PATH_PNP)
printk(BIOS_ERR, "%s: Unsupported device type\n",
dev_path(dev));
else if (dev->path.pnp.port & 1)
printk(BIOS_ERR, "%s: Base address needs to be aligned to 2\n",
dev_path(dev));
else
dev->ops = &ops;
}
struct chip_operations drivers_ipmi_ocp_ops = {
CHIP_NAME("IPMI OCP")
.enable_dev = enable_dev,
};
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