diff options
Diffstat (limited to 'src/soc/mediatek/mt8183/dramc_param.c')
| -rw-r--r-- | src/soc/mediatek/mt8183/dramc_param.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8183/dramc_param.c b/src/soc/mediatek/mt8183/dramc_param.c new file mode 100644 index 000000000000..ef3c19159ff2 --- /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; +} |