/* * This file is part of the coreboot project. * * Copyright (C) 2014 Damien Zammit * Copyright (C) 2014 Vladimir Serbinenko * Copyright (C) 2016 Patrick Rudolph * * 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; version 2 of the License. * * 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. */ #ifndef RAMINIT_COMMON_H #define RAMINIT_COMMON_H #include #define BASEFREQ 133 #define tDLLK 512 #define IS_SANDY_CPU(x) ((x & 0xffff0) == 0x206a0) #define IS_SANDY_CPU_C(x) ((x & 0xf) == 4) #define IS_SANDY_CPU_D0(x) ((x & 0xf) == 5) #define IS_SANDY_CPU_D1(x) ((x & 0xf) == 6) #define IS_SANDY_CPU_D2(x) ((x & 0xf) == 7) #define IS_IVY_CPU(x) ((x & 0xffff0) == 0x306a0) #define IS_IVY_CPU_C(x) ((x & 0xf) == 4) #define IS_IVY_CPU_K(x) ((x & 0xf) == 5) #define IS_IVY_CPU_D(x) ((x & 0xf) == 6) #define IS_IVY_CPU_E(x) ((x & 0xf) >= 8) #define NUM_CHANNELS 2 #define NUM_SLOTRANKS 4 #define NUM_SLOTS 2 #define NUM_LANES 8 /* FIXME: Vendor BIOS uses 64 but our algorithms are less performant and even 1 seems to be enough in practice. */ #define NUM_PATTERNS 4 typedef struct odtmap_st { u16 rttwr; u16 rttnom; } odtmap; typedef struct dimm_info_st { dimm_attr dimm[NUM_CHANNELS][NUM_SLOTS]; } dimm_info; struct ram_rank_timings { /* ROUNDT_LAT register. One byte per slotrank. */ u8 roundtrip_latency; /* IO_LATENCY register. One nibble per slotrank. */ u8 io_latency; /* Phase interpolator coding for command and control. */ int pi_coding; struct ram_lane_timings { /* lane register offset 0x10. */ u16 timA; /* bits 0 - 5, bits 16 - 18 */ u8 rising; /* bits 8 - 14 */ u8 falling; /* bits 20 - 26. */ /* lane register offset 0x20. */ int timC; /* bit 0 - 5, 19. */ u16 timB; /* bits 8 - 13, 15 - 17. */ } lanes[NUM_LANES]; }; struct ramctr_timing_st; typedef struct ramctr_timing_st { u16 spd_crc[NUM_CHANNELS][NUM_SLOTS]; int sandybridge; /* DDR base_freq = 100 Mhz / 133 Mhz */ u8 base_freq; u16 cas_supported; /* tLatencies are in units of ns, scaled by x256 */ u32 tCK; u32 tAA; u32 tWR; u32 tRCD; u32 tRRD; u32 tRP; u32 tRAS; u32 tRFC; u32 tWTR; u32 tRTP; u32 tFAW; u32 tCWL; u32 tCMD; /* Latencies in terms of clock cycles * They are saved separately as they are needed for DRAM MRS commands */ u8 CAS; /* CAS read latency */ u8 CWL; /* CAS write latency */ u32 tREFI; u32 tMOD; u32 tXSOffset; u32 tWLO; u32 tCKE; u32 tXPDLL; u32 tXP; u32 tAONPD; /* Bits [0..11] of PM_DLL_CONFIG: Master DLL wakeup delay timer. */ u16 mdll_wake_delay; u8 rankmap[NUM_CHANNELS]; int ref_card_offset[NUM_CHANNELS]; u32 mad_dimm[NUM_CHANNELS]; int channel_size_mb[NUM_CHANNELS]; u32 cmd_stretch[NUM_CHANNELS]; int pi_code_offset; int pi_coding_threshold; int edge_offset[3]; int timC_offset[3]; int extended_temperature_range; int auto_self_refresh; int rank_mirror[NUM_CHANNELS][NUM_SLOTRANKS]; struct ram_rank_timings timings[NUM_CHANNELS][NUM_SLOTRANKS]; dimm_info info; } ramctr_timing; #define HOST_BRIDGE PCI_DEV(0, 0, 0) #define SOUTHBRIDGE PCI_DEV(0, 0x1f, 0) #define FOR_ALL_LANES for (lane = 0; lane < NUM_LANES; lane++) #define FOR_ALL_CHANNELS for (channel = 0; channel < NUM_CHANNELS; channel++) #define FOR_ALL_POPULATED_RANKS for (slotrank = 0; slotrank < NUM_SLOTRANKS; slotrank++) if (ctrl->rankmap[channel] & (1 << slotrank)) #define FOR_ALL_POPULATED_CHANNELS for (channel = 0; channel < NUM_CHANNELS; channel++) if (ctrl->rankmap[channel]) #define MAX_EDGE_TIMING 71 #define MAX_TIMC 127 #define MAX_TIMB 511 #define MAX_TIMA 127 #define MAX_CAS 18 #define MIN_CAS 4 #define MAKE_ERR ((channel<<16)|(slotrank<<8)|1) #define GET_ERR_CHANNEL(x) (x>>16) u8 get_CWL(u32 tCK); void dram_mrscommands(ramctr_timing *ctrl); void program_timings(ramctr_timing *ctrl, int channel); void dram_find_common_params(ramctr_timing *ctrl); void dram_xover(ramctr_timing *ctrl); void dram_timing_regs(ramctr_timing *ctrl); void dram_dimm_mapping(ramctr_timing *ctrl); void dram_dimm_set_mapping(ramctr_timing *ctrl); void dram_zones(ramctr_timing *ctrl, int training); unsigned int get_mem_min_tck(void); void dram_memorymap(ramctr_timing *ctrl, int me_uma_size); void dram_jedecreset(ramctr_timing *ctrl); int read_training(ramctr_timing *ctrl); int write_training(ramctr_timing *ctrl); int command_training(ramctr_timing *ctrl); int discover_edges(ramctr_timing *ctrl); int discover_edges_write(ramctr_timing *ctrl); int discover_timC_write(ramctr_timing *ctrl); void normalize_training(ramctr_timing *ctrl); void write_controller_mr(ramctr_timing *ctrl); int channel_test(ramctr_timing *ctrl); void set_scrambling_seed(ramctr_timing *ctrl); void set_4f8c(void); void prepare_training(ramctr_timing *ctrl); void set_4008c(ramctr_timing *ctrl); void set_normal_operation(ramctr_timing *ctrl); void final_registers(ramctr_timing *ctrl); void restore_timings(ramctr_timing *ctrl); int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size); int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size); #endif