/* SPDX-License-Identifier: GPL-2.0-only */ /* This file is part of the coreboot project. */ #ifndef VARIANT_H #define VARIANT_H #include /* * RAM_ID[3:0] are on GPIO_SSUS[40:37] * RAM_ID Vendor Vendor_PN Freq Size Total_size channel * 0b0011 Hynix H5TC4G63AFR-PBA 1600MHZ 4Gb 2GB single-channel * 0b0100 Hynix H5TC4G63CFR-PBA 1600MHZ 4Gb 2GB single-channel * 0b0101 Samsung K4B4G1646Q-HYK0 1600MHZ 4Gb 2GB single-channel * 0b0110 Hynix H5TC4G63CFR-PBA 1600MHZ 4Gb 4GB dual-channel * 0b0111 Samsung K4B4G1646Q-HYK0 1600MHZ 4Gb 4GB dual-channel */ static const uint32_t dual_channel_config = (1 << 6) | (1 << 7); #define SPD_SIZE 256 #define GPIO_SSUS_37_PAD 57 #define GPIO_SSUS_38_PAD 50 #define GPIO_SSUS_39_PAD 58 #define GPIO_SSUS_40_PAD 52 #endif