/* * Maintainer : Steve Sakoman * * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by * Richard Woodruff * Syed Mohammed Khasim * Sunil Kumar * Shashi Ranjan * * (C) Copyright 2004-2008 * Texas Instruments, * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include "overo.h" /* * Routine: get_board_mem_timings * Description: If we use SPL then there is no x-loader nor config header * so we have to setup the DDR timings ourself on both banks. */ void get_board_mem_timings(struct board_sdrc_timings *timings) { timings->mr = MICRON_V_MR_165; switch (get_board_revision()) { case REVISION_0: /* Micron 1286MB/256MB, 1/2 banks of 128MB */ timings->mcfg = MICRON_V_MCFG_165(256 << 20); timings->ctrla = MICRON_V_ACTIMA_165; timings->ctrlb = MICRON_V_ACTIMB_165; timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; break; case REVISION_1: /* Micron 256MB/512MB, 1/2 banks of 256MB */ case REVISION_4: timings->mcfg = MICRON_V_MCFG_200(256 << 20); timings->ctrla = MICRON_V_ACTIMA_200; timings->ctrlb = MICRON_V_ACTIMB_200; timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; break; case REVISION_2: /* Hynix 256MB/512MB, 1/2 banks of 256MB */ timings->mcfg = HYNIX_V_MCFG_200(256 << 20); timings->ctrla = HYNIX_V_ACTIMA_200; timings->ctrlb = HYNIX_V_ACTIMB_200; timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; break; case REVISION_3: /* Micron 512MB/1024MB, 1/2 banks of 512MB */ timings->mcfg = MCFG(512 << 20, 15); timings->ctrla = MICRON_V_ACTIMA_200; timings->ctrlb = MICRON_V_ACTIMB_200; timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz; break; default: timings->mcfg = MICRON_V_MCFG_165(128 << 20); timings->ctrla = MICRON_V_ACTIMA_165; timings->ctrlb = MICRON_V_ACTIMB_165; timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; } }