1a9068479SHao Zhang /* 2a9068479SHao Zhang * Keystone2: DDR3 initialization 3a9068479SHao Zhang * 4*d9a76e77SVitaly Andrianov * (C) Copyright 2014-2015 5a9068479SHao Zhang * Texas Instruments Incorporated, <www.ti.com> 6a9068479SHao Zhang * 7a9068479SHao Zhang * SPDX-License-Identifier: GPL-2.0+ 8a9068479SHao Zhang */ 9a9068479SHao Zhang 10a9068479SHao Zhang #include <common.h> 11a9068479SHao Zhang #include "ddr3_cfg.h" 12a9068479SHao Zhang #include <asm/arch/ddr3.h> 13a9068479SHao Zhang 14a9068479SHao Zhang static struct pll_init_data ddr3_400 = DDR3_PLL_400; 15*d9a76e77SVitaly Andrianov static struct pll_init_data ddr3_333 = DDR3_PLL_333; 16a9068479SHao Zhang ddr3_init(void)1766c98a0cSVitaly Andrianovu32 ddr3_init(void) 18a9068479SHao Zhang { 19*d9a76e77SVitaly Andrianov struct ddr3_spd_cb spd_cb; 20a9068479SHao Zhang 21*d9a76e77SVitaly Andrianov if (ddr3_get_dimm_params_from_spd(&spd_cb)) { 22*d9a76e77SVitaly Andrianov printf("Sorry, I don't know how to configure DDR3A.\n" 23*d9a76e77SVitaly Andrianov "Bye :(\n"); 24*d9a76e77SVitaly Andrianov for (;;) 25*d9a76e77SVitaly Andrianov ; 26*d9a76e77SVitaly Andrianov } 27*d9a76e77SVitaly Andrianov 28*d9a76e77SVitaly Andrianov printf("Detected SO-DIMM [%s]\n", spd_cb.dimm_name); 29*d9a76e77SVitaly Andrianov 30*d9a76e77SVitaly Andrianov printf("DDR3 speed %d\n", spd_cb.ddrspdclock); 31*d9a76e77SVitaly Andrianov if (spd_cb.ddrspdclock == 1600) 32a9068479SHao Zhang init_pll(&ddr3_400); 33*d9a76e77SVitaly Andrianov else 34*d9a76e77SVitaly Andrianov init_pll(&ddr3_333); 35a9068479SHao Zhang 36a9068479SHao Zhang /* Reset DDR3 PHY after PLL enabled */ 37a9068479SHao Zhang ddr3_reset_ddrphy(); 38a9068479SHao Zhang 39*d9a76e77SVitaly Andrianov spd_cb.phy_cfg.zq0cr1 |= 0x10000; 40*d9a76e77SVitaly Andrianov spd_cb.phy_cfg.zq1cr1 |= 0x10000; 41*d9a76e77SVitaly Andrianov spd_cb.phy_cfg.zq2cr1 |= 0x10000; 42*d9a76e77SVitaly Andrianov ddr3_init_ddrphy(KS2_DDR3A_DDRPHYC, &spd_cb.phy_cfg); 43*d9a76e77SVitaly Andrianov ddr3_init_ddremif(KS2_DDR3A_EMIF_CTRL_BASE, &spd_cb.emif_cfg); 44a9068479SHao Zhang 45*d9a76e77SVitaly Andrianov printf("DRAM: %d GiB\n", spd_cb.ddr_size_gbyte); 46*d9a76e77SVitaly Andrianov 47*d9a76e77SVitaly Andrianov return (u32)spd_cb.ddr_size_gbyte; 48a9068479SHao Zhang } 49