/* * Timing and Organization details of the Elpida parts used in OMAP5 * EVM * * (C) Copyright 2010 * Texas Instruments, * * Aneesh V * Sricharan R * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include #include /* * This file provides details of the LPDDR2 SDRAM parts used on OMAP5 * EVM. Since the parts used and geometry are identical for * evm for a given OMAP5 revision, this information is kept * here instead of being in board directory. However the key functions * exported are weakly linked so that they can be over-ridden in the board * directory if there is a OMAP5 board in the future that uses a different * memory device or geometry. * * For any new board with different memory devices over-ride one or more * of the following functions as per the CONFIG flags you intend to enable: * - emif_get_reg_dump() * - emif_get_dmm_regs() * - emif_get_device_details() * - emif_get_device_timings() */ #ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS const struct emif_regs emif_regs_elpida_532_mhz_2cs = { .sdram_config_init = 0x80800EBA, .sdram_config = 0x808022BA, .ref_ctrl = 0x0000081A, .sdram_tim1 = 0x772F6873, .sdram_tim2 = 0x304a129a, .sdram_tim3 = 0x02f7e45f, .read_idle_ctrl = 0x00050000, .zq_config = 0x000b3215, .temp_alert_config = 0x08000a05, .emif_ddr_phy_ctlr_1_init = 0x0E28420d, .emif_ddr_phy_ctlr_1 = 0x0E28420d, .emif_ddr_ext_phy_ctrl_1 = 0x04020080, .emif_ddr_ext_phy_ctrl_2 = 0x28C518A3, .emif_ddr_ext_phy_ctrl_3 = 0x518A3146, .emif_ddr_ext_phy_ctrl_4 = 0x0014628C, .emif_ddr_ext_phy_ctrl_5 = 0x04010040 }; const struct emif_regs emif_regs_elpida_266_mhz_2cs = { .sdram_config_init = 0x80800EBA, .sdram_config = 0x808022BA, .ref_ctrl = 0x0000040D, .sdram_tim1 = 0x2A86B419, .sdram_tim2 = 0x1025094A, .sdram_tim3 = 0x026BA22F, .read_idle_ctrl = 0x00050000, .zq_config = 0x000b3215, .temp_alert_config = 0x08000a05, .emif_ddr_phy_ctlr_1_init = 0x0E28420d, .emif_ddr_phy_ctlr_1 = 0x0E28420d, .emif_ddr_ext_phy_ctrl_1 = 0x04020080, .emif_ddr_ext_phy_ctrl_2 = 0x0A414829, .emif_ddr_ext_phy_ctrl_3 = 0x14829052, .emif_ddr_ext_phy_ctrl_4 = 0x000520A4, .emif_ddr_ext_phy_ctrl_5 = 0x04010040 }; const struct dmm_lisa_map_regs lisa_map_4G_x_2_x_2 = { .dmm_lisa_map_0 = 0x0, .dmm_lisa_map_1 = 0, .dmm_lisa_map_2 = 0, .dmm_lisa_map_3 = 0x80740300 }; const u32 ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG] = { 0x01004010, 0x00001004, 0x04010040, 0x01004010, 0x00001004, 0x00000000, 0x00000000, 0x00000000, 0x80080080, 0x00800800, 0x08102040, 0x00000001, 0x540A8150, 0xA81502a0, 0x002A0540, 0x00000000, 0x00000000, 0x00000000, 0x00000077 }; static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs) { *regs = &emif_regs_elpida_532_mhz_2cs; } void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs) __attribute__((weak, alias("emif_get_reg_dump_sdp"))); static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs **dmm_lisa_regs) { *dmm_lisa_regs = &lisa_map_4G_x_2_x_2; } void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs) __attribute__((weak, alias("emif_get_dmm_regs_sdp"))); #else static const struct lpddr2_device_details elpida_4G_S4_details = { .type = LPDDR2_TYPE_S4, .density = LPDDR2_DENSITY_4Gb, .io_width = LPDDR2_IO_WIDTH_32, .manufacturer = LPDDR2_MANUFACTURER_ELPIDA }; static void emif_get_device_details_sdp(u32 emif_nr, struct lpddr2_device_details *cs0_device_details, struct lpddr2_device_details *cs1_device_details) { /* EMIF1 & EMIF2 have identical configuration */ *cs0_device_details = elpida_4G_S4_details; *cs1_device_details = elpida_4G_S4_details; } void emif_get_device_details(u32 emif_nr, struct lpddr2_device_details *cs0_device_details, struct lpddr2_device_details *cs1_device_details) __attribute__((weak, alias("emif_get_device_details_sdp"))); #endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */ #ifndef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS static const struct lpddr2_ac_timings timings_jedec_532_mhz = { .max_freq = 532000000, .RL = 8, .tRPab = 21, .tRCD = 18, .tWR = 15, .tRASmin = 42, .tRRD = 10, .tWTRx2 = 15, .tXSR = 140, .tXPx2 = 15, .tRFCab = 130, .tRTPx2 = 15, .tCKE = 3, .tCKESR = 15, .tZQCS = 90, .tZQCL = 360, .tZQINIT = 1000, .tDQSCKMAXx2 = 11, .tRASmax = 70, .tFAW = 50 }; static const struct lpddr2_min_tck min_tck_elpida = { .tRL = 3, .tRP_AB = 3, .tRCD = 3, .tWR = 3, .tRAS_MIN = 3, .tRRD = 2, .tWTR = 2, .tXP = 2, .tRTP = 2, .tCKE = 3, .tCKESR = 3, .tFAW = 8 }; static const struct lpddr2_ac_timings *elpida_ac_timings[MAX_NUM_SPEEDBINS] = { &timings_jedec_532_mhz }; static const struct lpddr2_device_timings elpida_4G_S4_timings = { .ac_timings = elpida_ac_timings, .min_tck = &min_tck_elpida, }; void emif_get_device_timings_sdp(u32 emif_nr, const struct lpddr2_device_timings **cs0_device_timings, const struct lpddr2_device_timings **cs1_device_timings) { /* Identical devices on EMIF1 & EMIF2 */ *cs0_device_timings = &elpida_4G_S4_timings; *cs1_device_timings = &elpida_4G_S4_timings; } void emif_get_device_timings(u32 emif_nr, const struct lpddr2_device_timings **cs0_device_timings, const struct lpddr2_device_timings **cs1_device_timings) __attribute__((weak, alias("emif_get_device_timings_sdp"))); #endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */