ipmi_ocp_romstage.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#include <console/console.h>
#include <drivers/ipmi/ipmi_kcs.h>
 
#include "ipmi_ocp.h"
 
enum cb_err ipmi_set_post_start(const int port)
{
        int ret;
        struct ipmi_rsp rsp;
 
        ret = ipmi_kcs_message(port, IPMI_NETFN_OEM, 0x0,
                                 IPMI_BMC_SET_POST_START, NULL, 0, (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;
        }
        if (ret != sizeof(rsp)) {
                printk(BIOS_ERR, "IPMI: %s response truncated\n", __func__);
                return CB_ERR;
        }
 
        printk(BIOS_DEBUG, "IPMI BMC POST is started\n");
        return CB_SUCCESS;
}
 
enum cb_err ipmi_set_cmos_clear(void)
{
        int ret;
 
        struct ipmi_oem_rsp {
                struct ipmi_rsp resp;
                struct boot_order data;
        } __packed;
 
        struct ipmi_oem_rsp rsp;
        struct boot_order req;
 
        /* IPMI OEM get bios boot order command to check if the valid bit and
           the CMOS clear bit are both set from the response BootMode byte. */
        ret = ipmi_kcs_message(CONFIG_BMC_KCS_BASE, IPMI_NETFN_OEM, 0x0,
                        IPMI_OEM_GET_BIOS_BOOT_ORDER,
                        NULL, 0,
                        (unsigned char *) &rsp, sizeof(rsp));
 
        if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) {
                printk(BIOS_ERR, "IPMI: %s command failed (read ret=%d resp=0x%x)\n",
                        __func__, ret, rsp.resp.completion_code);
                return CB_ERR;
        }
 
        if (!IS_CMOS_AND_VALID_BIT(rsp.data.boot_mode)) {
                req = rsp.data;
                SET_CMOS_AND_VALID_BIT(req.boot_mode);
                ret = ipmi_kcs_message(CONFIG_BMC_KCS_BASE, IPMI_NETFN_OEM, 0x0,
                                IPMI_OEM_SET_BIOS_BOOT_ORDER,
                                (const unsigned char *) &req, sizeof(req),
                                (unsigned char *) &rsp, sizeof(rsp));
 
                if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) {
                        printk(BIOS_ERR, "IPMI: %s command failed (sent ret=%d resp=0x%x)\n",
                                __func__, ret, rsp.resp.completion_code);
                        return CB_ERR;
                }
 
                printk(BIOS_INFO, "IPMI CMOS clear requested because CMOS data is invalid.\n");
 
                return CB_SUCCESS;
        }
 
        return CB_SUCCESS;
}