1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Keystone2: DDR3 initialization 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * (C) Copyright 2014-2015 5*4882a593Smuzhiyun * Texas Instruments Incorporated, <www.ti.com> 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <common.h> 11*4882a593Smuzhiyun #include "ddr3_cfg.h" 12*4882a593Smuzhiyun #include <asm/arch/ddr3.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun static struct pll_init_data ddr3_400 = DDR3_PLL_400; 15*4882a593Smuzhiyun static struct pll_init_data ddr3_333 = DDR3_PLL_333; 16*4882a593Smuzhiyun ddr3_init(void)17*4882a593Smuzhiyunu32 ddr3_init(void) 18*4882a593Smuzhiyun { 19*4882a593Smuzhiyun struct ddr3_spd_cb spd_cb; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun if (ddr3_get_dimm_params_from_spd(&spd_cb)) { 22*4882a593Smuzhiyun printf("Sorry, I don't know how to configure DDR3A.\n" 23*4882a593Smuzhiyun "Bye :(\n"); 24*4882a593Smuzhiyun for (;;) 25*4882a593Smuzhiyun ; 26*4882a593Smuzhiyun } 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun printf("Detected SO-DIMM [%s]\n", spd_cb.dimm_name); 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun printf("DDR3 speed %d\n", spd_cb.ddrspdclock); 31*4882a593Smuzhiyun if (spd_cb.ddrspdclock == 1600) 32*4882a593Smuzhiyun init_pll(&ddr3_400); 33*4882a593Smuzhiyun else 34*4882a593Smuzhiyun init_pll(&ddr3_333); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun /* Reset DDR3 PHY after PLL enabled */ 37*4882a593Smuzhiyun ddr3_reset_ddrphy(); 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun spd_cb.phy_cfg.zq0cr1 |= 0x10000; 40*4882a593Smuzhiyun spd_cb.phy_cfg.zq1cr1 |= 0x10000; 41*4882a593Smuzhiyun spd_cb.phy_cfg.zq2cr1 |= 0x10000; 42*4882a593Smuzhiyun ddr3_init_ddrphy(KS2_DDR3A_DDRPHYC, &spd_cb.phy_cfg); 43*4882a593Smuzhiyun ddr3_init_ddremif(KS2_DDR3A_EMIF_CTRL_BASE, &spd_cb.emif_cfg); 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun printf("DRAM: %d GiB\n", spd_cb.ddr_size_gbyte); 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun return (u32)spd_cb.ddr_size_gbyte; 48*4882a593Smuzhiyun } 49