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/* SPDX-License-Identifier: GPL-2.0-only */
#include <arch/io.h>
#include <console/console.h>
#include <device/pnp.h>
#include <delay.h>
#include <timer.h>
#include "ipmi_kcs.h"
#include "chip.h"
static int ipmi_get_bmc_self_test_result(const struct device *dev,
struct ipmi_selftest_rsp *rsp)
{
int ret;
ret = ipmi_kcs_message(dev->path.pnp.port, IPMI_NETFN_APPLICATION, 0,
IPMI_BMC_GET_SELFTEST_RESULTS, NULL, 0, (u8 *)rsp,
sizeof(*rsp));
if (ret < sizeof(struct ipmi_rsp) || rsp->resp.completion_code) {
printk(BIOS_ERR, "IPMI: %s command failed (ret=%d resp=0x%x)\n",
__func__, ret, rsp->resp.completion_code);
return 1;
}
if (ret != sizeof(*rsp)) {
printk(BIOS_ERR, "IPMI: %s response truncated\n", __func__);
return 1;
}
return 0;
}
enum cb_err ipmi_kcs_premem_init(const u16 port, const u16 device)
{
const struct drivers_ipmi_config *conf = NULL;
struct ipmi_selftest_rsp selftestrsp = {0};
uint8_t retry_count;
const struct device *dev;
/* Find IPMI PNP device from devicetree in romstage */
dev = dev_find_slot_pnp(port, device);
if (!dev) {
printk(BIOS_ERR, "IPMI: Cannot find PNP device port: %x, device %x\n",
port, device);
return CB_ERR;
}
if (!dev->enabled) {
printk(BIOS_ERR, "IPMI: device is not enabled\n");
return CB_ERR;
}
printk(BIOS_DEBUG, "IPMI: romstage PNP KCS 0x%x\n", dev->path.pnp.port);
if (dev->chip_info)
conf = dev->chip_info;
if (conf && conf->wait_for_bmc && conf->bmc_boot_timeout) {
struct stopwatch sw;
stopwatch_init_msecs_expire(&sw, conf->bmc_boot_timeout * 1000);
printk(BIOS_DEBUG, "IPMI: Waiting for BMC...\n");
while (!stopwatch_expired(&sw)) {
if (inb(dev->path.pnp.port) != 0xff)
break;
mdelay(100);
}
if (stopwatch_expired(&sw)) {
printk(BIOS_INFO, "IPMI: Waiting for BMC timed out\n");
return CB_ERR;
}
}
printk(BIOS_INFO, "Get BMC self test result...");
if (conf && conf->bmc_boot_timeout) {
for (retry_count = 0; retry_count < conf->bmc_boot_timeout; retry_count++) {
if (!ipmi_get_bmc_self_test_result(dev, &selftestrsp))
break;
mdelay(1000);
}
} else {
/* At least run once */
ipmi_get_bmc_self_test_result(dev, &selftestrsp);
}
int ret = CB_ERR;
switch (selftestrsp.result) {
case IPMI_APP_SELFTEST_NO_ERROR: /* 0x55 */
printk(BIOS_DEBUG, "No Error\n");
ret = CB_SUCCESS;
break;
case IPMI_APP_SELFTEST_NOT_IMPLEMENTED: /* 0x56 */
printk(BIOS_DEBUG, "Function Not Implemented\n");
ret = CB_SUCCESS;
break;
case IPMI_APP_SELFTEST_ERROR: /* 0x57 */
printk(BIOS_ERR, "Corrupted or inaccessible data or device\n");
break;
case IPMI_APP_SELFTEST_FATAL_HW_ERROR: /* 0x58 */
printk(BIOS_ERR, "Fatal Hardware Error\n");
break;
case IPMI_APP_SELFTEST_RESERVED: /* 0xFF */
printk(BIOS_DEBUG, "Reserved\n");
ret = CB_SUCCESS;
break;
default: /* Other Device Specific Hardware Error */
printk(BIOS_ERR, "Device Specific Error 0x%x 0x%x\n", selftestrsp.result,
selftestrsp.param);
break;
}
return ret;
}
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