| /* |
| * This file is part of the coreboot 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; 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 <stdint.h> |
| |
| #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; /* bits 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; |
| /* Latencies 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 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_wmm_behavior(void); |
| void prepare_training(ramctr_timing *ctrl); |
| void set_read_write_timings(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_snb(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size); |
| int try_init_dram_ddr3_ivb(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size); |
| |
| #endif |