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/* SPDX-License-Identifier: GPL-2.0-only */
#include <boardid.h>
#include <cbfs.h>
#include <console/console.h>
#include <gpio.h>
#include <soc/sdram.h>
#include <string.h>
#include <types.h>
static const char *sdram_configs[] = {
/* Samsung K4E6E304EB-EGCE */
[0] = "sdram-lpddr3-generic-4GB",
/* Hynix H9CCNNNBJTALAR */
[1] = "sdram-lpddr3-generic-4GB",
/* Samsung K4E8E324EB-EGCF */
[3] = "sdram-lpddr3-generic-2GB",
/* Micron MT52L256M32D1PF */
[4] = "sdram-lpddr3-generic-2GB",
/* Samsung K4E6E304EB-EGCE, duplicate to 0 */
[5] = "sdram-lpddr3-generic-4GB",
/* Micron MT52L512M32D2PF */
[6] = "sdram-lpddr3-generic-4GB",
};
static struct rk3399_sdram_params params;
enum dram_speeds {
dram_800MHz = 800,
dram_928MHz = 928,
};
static enum dram_speeds get_sdram_target_mhz(void)
{
if (CONFIG(BOARD_GOOGLE_BOB) && board_id() < 4)
return dram_800MHz;
return dram_928MHz;
}
const struct rk3399_sdram_params *get_sdram_config(void)
{
char config_file[64];
uint32_t ramcode;
ramcode = ram_code();
if (ramcode >= ARRAY_SIZE(sdram_configs) ||
!snprintf(config_file, sizeof(config_file), "%s-%d",
sdram_configs[ramcode], get_sdram_target_mhz()) ||
(cbfs_load(config_file, ¶ms, sizeof(params)) != sizeof(params)))
die("Cannot load SDRAM parameter file!");
return ¶ms;
}
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