diff options
| -rw-r--r-- | src/soc/mediatek/mt8183/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8183/dramc_param.c | 58 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8183/include/soc/dramc_param.h | 78 |
3 files changed, 137 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8183/Makefile.inc b/src/soc/mediatek/mt8183/Makefile.inc index d1171ef379..72a4d9cf62 100644 --- a/src/soc/mediatek/mt8183/Makefile.inc +++ b/src/soc/mediatek/mt8183/Makefile.inc @@ -27,6 +27,7 @@ verstage-y += ../common/wdt.c romstage-y += auxadc.c romstage-y += ../common/cbmem.c emi.c romstage-y += dramc_init_setting.c +romstage-y += dramc_param.c romstage-y += dramc_pi_basic_api.c romstage-y += dramc_pi_calibration_api.c romstage-y += memory.c diff --git a/src/soc/mediatek/mt8183/dramc_param.c b/src/soc/mediatek/mt8183/dramc_param.c new file mode 100644 index 0000000000..ef3c19159f --- /dev/null +++ b/src/soc/mediatek/mt8183/dramc_param.c @@ -0,0 +1,58 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2019 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <string.h> +#include "soc/dramc_param.h" + +struct dramc_param *get_dramc_param_from_blob(void *blob) +{ + return (struct dramc_param *)blob; +} + +int validate_dramc_param(const void *blob) +{ + const struct dramc_param *param = blob; + const struct dramc_param_header *hdr = ¶m->header; + + if (hdr->magic != DRAMC_PARAM_HEADER_MAGIC) + return DRAMC_ERR_INVALID_MAGIC; + + if (hdr->version != DRAMC_PARAM_HEADER_VERSION) + return DRAMC_ERR_INVALID_VERSION; + + if (hdr->size != sizeof(*param)) + return DRAMC_ERR_INVALID_SIZE; + + /* TODO(hungte) Verify and check hdr->checksum. */ + return DRAMC_SUCCESS; +} + +int is_valid_dramc_param(const void *blob) +{ + return validate_dramc_param(blob) == DRAMC_SUCCESS; +} + +int initialize_dramc_param(void *blob, u16 config) +{ + struct dramc_param *param = blob; + struct dramc_param_header *hdr = ¶m->header; + + memset(blob, 0, sizeof(*param)); + hdr->magic = DRAMC_PARAM_HEADER_MAGIC; + hdr->size = sizeof(*param); + hdr->version = DRAMC_PARAM_HEADER_VERSION; + hdr->config = config; + return 0; +} diff --git a/src/soc/mediatek/mt8183/include/soc/dramc_param.h b/src/soc/mediatek/mt8183/include/soc/dramc_param.h new file mode 100644 index 0000000000..c2df459c6f --- /dev/null +++ b/src/soc/mediatek/mt8183/include/soc/dramc_param.h @@ -0,0 +1,78 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2019 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef SOC_MEDIATEK_MT8183_DRAMC_PARAM_H +#define SOC_MEDIATEK_MT8183_DRAMC_PARAM_H + +#include <stdint.h> +#include <sys/types.h> + +#include "emi.h" + +enum { + DRAMC_PARAM_HEADER_MAGIC = 0x44524d4b, + DRAMC_PARAM_HEADER_VERSION = 1, +}; + +enum DRAMC_PARAM_STATUS_CODES { + DRAMC_SUCCESS = 0, + DRAMC_ERR_INVALID_MAGIC, + DRAMC_ERR_INVALID_VERSION, + DRAMC_ERR_INVALID_SIZE, + DRAMC_ERR_INVALID_CHECKSUM, + DRAMC_ERR_INVALID_FLAGS, + DRAMC_ERR_RECALIBRATE, + DRAMC_ERR_INIT_DRAM, + DRAMC_ERR_COMPLEX_RW_MEM_TEST, + DRAMC_ERR_1ST_COMPLEX_RW_MEM_TEST, + DRAMC_ERR_2ND_COMPLEX_RW_MEM_TEST, +}; + +/* Bit flags */ +enum DRAMC_PARAM_CONFIG { + DRAMC_CONFIG_EMCP = 0x0001, +}; + +enum DRAMC_PARAM_FLAGS { + DRAMC_FLAG_HAS_SAVED_DATA = 0x0001, +}; + +struct dramc_param_header { + u32 status; /* DRAMC_PARAM_STATUS_CODES */ + u32 magic; + u32 version; + u32 size; /* size of whole dramc_param */ + u16 config; /* DRAMC_PARAM_CONFIG */ + u16 flags; /* DRAMC_PARAM_FLAGS */ + u32 checksum; +}; + +struct dramc_param { + struct dramc_param_header header; + struct sdram_params freq_params[DRAM_DFS_SHUFFLE_MAX]; +}; + +struct dramc_param_ops { + struct dramc_param *param; + bool (*read_from_flash)(struct dramc_param *dparam); + bool (*write_to_flash)(const struct dramc_param *dparam); +}; + +struct dramc_param *get_dramc_param_from_blob(void *blob); +int validate_dramc_param(const void *blob); +int is_valid_dramc_param(const void *blob); +int initialize_dramc_param(void *blob, u16 config); + +#endif /* SOC_MEDIATEK_MT8183_DRAMC_PARAM_H */ |