sdram_configs.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <boardid.h>
#include <cbfs.h>
#include <console/console.h>
#include <soc/dramc_param.h>
 
/* Reference: go/asurada-id */
static const char *const sdram_configs[] = {
        /* Group 0x0: eMCP 4GB dual rank (with exceptions). */
        [0x00] = "sdram-lpddr4x-MT29VZZZBD9DQKPR-046-6GB",  /* 6GB */
        [0x01] = "sdram-lpddr4x-MT29VZZZAD8GQFSL-046-4GB",  /* single rank */
        [0x02] = "sdram-lpddr4x-KMDP6001DA-B425-4GB",
        [0x03] = "sdram-lpddr4x-KMDV6001DA-B620-4GB",
        [0x04] = "sdram-lpddr4x-EMCP-2RANK-4GB",
        [0x05] = "sdram-lpddr4x-EMCP-2RANK-4GB",
        [0x06] = "sdram-lpddr4x-EMCP-2RANK-4GB",
        [0x07] = "sdram-lpddr4x-EMCP-2RANK-4GB",
        [0x08] = "sdram-lpddr4x-EMCP-2RANK-4GB",
        [0x09] = "sdram-lpddr4x-EMCP-2RANK-4GB",
        [0x0a] = "sdram-lpddr4x-EMCP-2RANK-4GB",
        [0x0b] = "sdram-lpddr4x-EMCP-2RANK-4GB",
 
        /* Group 0x1, 0x2, 0x3 are reserved for eMCP. */
 
        /* Group 0x4: discrete 4GB single rank. */
        [0x40] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
        [0x41] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
        [0x42] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
        [0x43] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
        [0x44] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
        [0x45] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
        [0x46] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
        [0x47] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
        [0x48] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
        [0x49] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
        [0x4a] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
        [0x4b] = "sdram-lpddr4x-DISCRETE-1RANK-4GB",
 
        /* Group 0x5: discrete 4GB dual rank. */
        [0x50] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
        [0x51] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
        [0x52] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
        [0x53] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
        [0x54] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
        [0x55] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
        [0x56] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
        [0x57] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
        [0x58] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
        [0x59] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
        [0x5a] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
        [0x5b] = "sdram-lpddr4x-DISCRETE-2RANK-4GB",
 
        /* Group 0x6: discrete 8GB dual rank, normal mode */
        [0x60] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
        [0x61] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
        [0x62] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
        [0x63] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
        [0x64] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
        [0x65] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
        [0x66] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
        [0x67] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
        [0x68] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
        [0x69] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
        [0x6a] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
        [0x6b] = "sdram-lpddr4x-DISCRETE-2RANK-8GB",
 
        /* Group 0x7: discrete 8GB dual rank, byte mode. */
        [0x70] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
        [0x71] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
        [0x72] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
        [0x73] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
        [0x74] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
        [0x75] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
        [0x76] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
        [0x77] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
        [0x78] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
        [0x79] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
        [0x7a] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
        [0x7b] = "sdram-lpddr4x-DISCRETE-2RANK-8GB-BYTE-MODE",
};
 
static struct sdram_info params;
 
const struct sdram_info *get_sdram_config(void)
{
        uint32_t ramcode = ram_code();
 
        if (ramcode >= ARRAY_SIZE(sdram_configs) ||
            cbfs_load(sdram_configs[ramcode], &params, sizeof(params)) != sizeof(params))
                die("Cannot load SDRAM parameter file for RAM code: %#x", ramcode);
 
        return &params;
}