/* * This file is part of the coreboot project. * * * 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 #include #include #include void variant_devtree_update(void) { uint32_t sku_id; struct device *emmc_host; struct device *ssd_host; config_t *cfg = config_of_soc(); emmc_host = pcidev_path_on_root(PCH_DEVFN_EMMC); ssd_host = pcidev_path_on_root(PCH_DEVFN_SATA); /* SKU ID 1/3/23/24 doesn't have a eMMC device, hence disable it. */ sku_id = google_chromeec_get_board_sku(); if (sku_id == 1 || sku_id == 3 || sku_id == 23 || sku_id == 24) { if (emmc_host == NULL) return; emmc_host->enabled = 0; cfg->ScsEmmcHs400Enabled = 0; } /* SKU ID 2/4/21/22 doesn't have a SSD device, hence disable it. */ if (sku_id == 2 || sku_id == 4 || sku_id == 21 || sku_id == 22) { if (ssd_host == NULL) return; ssd_host->enabled = 0; cfg->SataSalpSupport = 0; cfg->SataMode = 0; cfg->SataPortsEnable[1] = 0; cfg->SataPortsDevSlp[1] = 0; cfg->satapwroptimize = 0; } }