1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+ 2a9068479SHao Zhang /* 3a9068479SHao Zhang * Keystone2: DDR3 initialization 4a9068479SHao Zhang * 5d9a76e77SVitaly Andrianov * (C) Copyright 2014-2015 6a9068479SHao Zhang * Texas Instruments Incorporated, <www.ti.com> 7a9068479SHao Zhang */ 8a9068479SHao Zhang 9a9068479SHao Zhang #include <common.h> 10a9068479SHao Zhang #include "ddr3_cfg.h" 11a9068479SHao Zhang #include <asm/arch/ddr3.h> 12a9068479SHao Zhang 13a9068479SHao Zhang static struct pll_init_data ddr3_400 = DDR3_PLL_400; 14d9a76e77SVitaly Andrianov static struct pll_init_data ddr3_333 = DDR3_PLL_333; 15a9068479SHao Zhang ddr3_init(void)1666c98a0cSVitaly Andrianovu32 ddr3_init(void) 17a9068479SHao Zhang { 18d9a76e77SVitaly Andrianov struct ddr3_spd_cb spd_cb; 19a9068479SHao Zhang 20d9a76e77SVitaly Andrianov if (ddr3_get_dimm_params_from_spd(&spd_cb)) { 21d9a76e77SVitaly Andrianov printf("Sorry, I don't know how to configure DDR3A.\n" 22d9a76e77SVitaly Andrianov "Bye :(\n"); 23d9a76e77SVitaly Andrianov for (;;) 24d9a76e77SVitaly Andrianov ; 25d9a76e77SVitaly Andrianov } 26d9a76e77SVitaly Andrianov 27d9a76e77SVitaly Andrianov printf("Detected SO-DIMM [%s]\n", spd_cb.dimm_name); 28d9a76e77SVitaly Andrianov 29d9a76e77SVitaly Andrianov printf("DDR3 speed %d\n", spd_cb.ddrspdclock); 30d9a76e77SVitaly Andrianov if (spd_cb.ddrspdclock == 1600) 31a9068479SHao Zhang init_pll(&ddr3_400); 32d9a76e77SVitaly Andrianov else 33d9a76e77SVitaly Andrianov init_pll(&ddr3_333); 34a9068479SHao Zhang 35a9068479SHao Zhang /* Reset DDR3 PHY after PLL enabled */ 36a9068479SHao Zhang ddr3_reset_ddrphy(); 37a9068479SHao Zhang 38d9a76e77SVitaly Andrianov spd_cb.phy_cfg.zq0cr1 |= 0x10000; 39d9a76e77SVitaly Andrianov spd_cb.phy_cfg.zq1cr1 |= 0x10000; 40d9a76e77SVitaly Andrianov spd_cb.phy_cfg.zq2cr1 |= 0x10000; 41d9a76e77SVitaly Andrianov ddr3_init_ddrphy(KS2_DDR3A_DDRPHYC, &spd_cb.phy_cfg); 42d9a76e77SVitaly Andrianov ddr3_init_ddremif(KS2_DDR3A_EMIF_CTRL_BASE, &spd_cb.emif_cfg); 43a9068479SHao Zhang 44d9a76e77SVitaly Andrianov printf("DRAM: %d GiB\n", spd_cb.ddr_size_gbyte); 45d9a76e77SVitaly Andrianov 46d9a76e77SVitaly Andrianov return (u32)spd_cb.ddr_size_gbyte; 47a9068479SHao Zhang } 48