soc/mediatek/mt8183: Add the shared 'dramc_param' module
The dramc_param module simplifies the communication between coreboot and MTK DRAM full calibration blob, and is shared by both implementations to ensure the same format of parameters. BUG=b:139099592 BRANCH=none TEST=emerge-kukui coreboot Change-Id: I4cfd634da1855a76706aab0b050197251e2ed4dd Signed-off-by: Yu-Ping Wu <yupingso@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35775 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
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@ -27,6 +27,7 @@ verstage-y += ../common/wdt.c
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romstage-y += auxadc.c
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romstage-y += ../common/cbmem.c emi.c
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romstage-y += dramc_init_setting.c
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romstage-y += dramc_param.c
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romstage-y += dramc_pi_basic_api.c
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romstage-y += dramc_pi_calibration_api.c
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romstage-y += memory.c
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@ -0,0 +1,58 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright 2019 MediaTek Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <string.h>
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#include "soc/dramc_param.h"
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struct dramc_param *get_dramc_param_from_blob(void *blob)
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{
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return (struct dramc_param *)blob;
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}
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int validate_dramc_param(const void *blob)
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{
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const struct dramc_param *param = blob;
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const struct dramc_param_header *hdr = ¶m->header;
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if (hdr->magic != DRAMC_PARAM_HEADER_MAGIC)
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return DRAMC_ERR_INVALID_MAGIC;
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if (hdr->version != DRAMC_PARAM_HEADER_VERSION)
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return DRAMC_ERR_INVALID_VERSION;
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if (hdr->size != sizeof(*param))
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return DRAMC_ERR_INVALID_SIZE;
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/* TODO(hungte) Verify and check hdr->checksum. */
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return DRAMC_SUCCESS;
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}
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int is_valid_dramc_param(const void *blob)
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{
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return validate_dramc_param(blob) == DRAMC_SUCCESS;
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}
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int initialize_dramc_param(void *blob, u16 config)
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{
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struct dramc_param *param = blob;
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struct dramc_param_header *hdr = ¶m->header;
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memset(blob, 0, sizeof(*param));
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hdr->magic = DRAMC_PARAM_HEADER_MAGIC;
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hdr->size = sizeof(*param);
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hdr->version = DRAMC_PARAM_HEADER_VERSION;
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hdr->config = config;
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return 0;
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}
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@ -0,0 +1,78 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright 2019 MediaTek Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef SOC_MEDIATEK_MT8183_DRAMC_PARAM_H
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#define SOC_MEDIATEK_MT8183_DRAMC_PARAM_H
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#include <stdint.h>
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#include <sys/types.h>
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#include "emi.h"
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enum {
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DRAMC_PARAM_HEADER_MAGIC = 0x44524d4b,
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DRAMC_PARAM_HEADER_VERSION = 1,
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};
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enum DRAMC_PARAM_STATUS_CODES {
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DRAMC_SUCCESS = 0,
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DRAMC_ERR_INVALID_MAGIC,
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DRAMC_ERR_INVALID_VERSION,
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DRAMC_ERR_INVALID_SIZE,
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DRAMC_ERR_INVALID_CHECKSUM,
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DRAMC_ERR_INVALID_FLAGS,
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DRAMC_ERR_RECALIBRATE,
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DRAMC_ERR_INIT_DRAM,
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DRAMC_ERR_COMPLEX_RW_MEM_TEST,
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DRAMC_ERR_1ST_COMPLEX_RW_MEM_TEST,
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DRAMC_ERR_2ND_COMPLEX_RW_MEM_TEST,
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};
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/* Bit flags */
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enum DRAMC_PARAM_CONFIG {
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DRAMC_CONFIG_EMCP = 0x0001,
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};
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enum DRAMC_PARAM_FLAGS {
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DRAMC_FLAG_HAS_SAVED_DATA = 0x0001,
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};
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struct dramc_param_header {
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u32 status; /* DRAMC_PARAM_STATUS_CODES */
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u32 magic;
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u32 version;
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u32 size; /* size of whole dramc_param */
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u16 config; /* DRAMC_PARAM_CONFIG */
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u16 flags; /* DRAMC_PARAM_FLAGS */
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u32 checksum;
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};
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struct dramc_param {
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struct dramc_param_header header;
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struct sdram_params freq_params[DRAM_DFS_SHUFFLE_MAX];
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};
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struct dramc_param_ops {
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struct dramc_param *param;
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bool (*read_from_flash)(struct dramc_param *dparam);
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bool (*write_to_flash)(const struct dramc_param *dparam);
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};
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struct dramc_param *get_dramc_param_from_blob(void *blob);
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int validate_dramc_param(const void *blob);
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int is_valid_dramc_param(const void *blob);
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int initialize_dramc_param(void *blob, u16 config);
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#endif /* SOC_MEDIATEK_MT8183_DRAMC_PARAM_H */
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