diff options
Diffstat (limited to 'src/northbridge/intel/x4x/raminit.h')
| -rw-r--r-- | src/northbridge/intel/x4x/raminit.h | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/src/northbridge/intel/x4x/raminit.h b/src/northbridge/intel/x4x/raminit.h new file mode 100644 index 0000000000..ca58b1f5c0 --- /dev/null +++ b/src/northbridge/intel/x4x/raminit.h @@ -0,0 +1,247 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __X4X_RAMINIT_H__ +#define __X4X_RAMINIT_H__ + +#include <stdint.h> + +#define NOP_CMD 0x2 +#define PRECHARGE_CMD 0x4 +#define MRS_CMD 0x6 +#define EMRS_CMD 0x8 +#define EMRS1_CMD (EMRS_CMD | 0x10) +#define EMRS2_CMD (EMRS_CMD | 0x20) +#define EMRS3_CMD (EMRS_CMD | 0x30) +#define ZQCAL_CMD 0xa +#define CBR_CMD 0xc +#define NORMALOP_CMD 0xe + +#define TOTAL_CHANNELS 2 +#define TOTAL_DIMMS 4 +#define TOTAL_BYTELANES 8 +#define DIMMS_PER_CHANNEL (TOTAL_DIMMS / TOTAL_CHANNELS) +#define RAW_CARD_UNPOPULATED 0xff +#define RAW_CARD_POPULATED 0 + +#define DIMM_IS_POPULATED(dimms, idx) (dimms[idx].card_type != RAW_CARD_UNPOPULATED) +#define IF_DIMM_POPULATED(dimms, idx) if (dimms[idx].card_type != RAW_CARD_UNPOPULATED) +#define ONLY_DIMMA_IS_POPULATED(dimms, ch) ( \ + (DIMM_IS_POPULATED(dimms, (ch == 0) ? 0 : 2) && \ + !DIMM_IS_POPULATED(dimms, (ch == 0) ? 1 : 3))) +#define ONLY_DIMMB_IS_POPULATED(dimms, ch) ( \ + (DIMM_IS_POPULATED(dimms, (ch == 0) ? 1 : 3) && \ + !DIMM_IS_POPULATED(dimms, (ch == 0) ? 0 : 2))) +#define BOTH_DIMMS_ARE_POPULATED(dimms, ch) ( \ + (DIMM_IS_POPULATED(dimms, (ch == 0) ? 0 : 2) && \ + (DIMM_IS_POPULATED(dimms, (ch == 0) ? 1 : 3)))) +#define FOR_EACH_DIMM(idx) \ + for (idx = 0; idx < TOTAL_DIMMS; ++idx) +#define FOR_EACH_POPULATED_DIMM(dimms, idx) \ + FOR_EACH_DIMM(idx) IF_DIMM_POPULATED(dimms, idx) +#define FOR_EACH_DIMM_IN_CHANNEL(ch, idx) \ + for (idx = (ch) << 1; idx < ((ch) << 1) + DIMMS_PER_CHANNEL; ++idx) +#define FOR_EACH_POPULATED_DIMM_IN_CHANNEL(dimms, ch, idx) \ + FOR_EACH_DIMM_IN_CHANNEL(ch, idx) IF_DIMM_POPULATED(dimms, idx) +#define CHANNEL_IS_POPULATED(dimms, idx) \ + ((dimms[idx<<1].card_type != RAW_CARD_UNPOPULATED) \ + || (dimms[(idx<<1) + 1].card_type != RAW_CARD_UNPOPULATED)) +#define CHANNEL_IS_CARDF(dimms, idx) \ + ((dimms[idx<<1].card_type == 0xf) \ + || (dimms[(idx<<1) + 1].card_type == 0xf)) +#define IF_CHANNEL_POPULATED(dimms, idx) \ + if ((dimms[idx<<1].card_type != RAW_CARD_UNPOPULATED) \ + || (dimms[(idx<<1) + 1].card_type != RAW_CARD_UNPOPULATED)) +#define FOR_EACH_CHANNEL(idx) \ + for (idx = 0; idx < TOTAL_CHANNELS; ++idx) +#define FOR_EACH_POPULATED_CHANNEL(dimms, idx) \ + FOR_EACH_CHANNEL(idx) IF_CHANNEL_POPULATED(dimms, idx) + +#define RANKS_PER_CHANNEL 4 +#define RANK_IS_POPULATED(dimms, ch, r) \ + (((dimms[ch<<1].card_type != RAW_CARD_UNPOPULATED) && ((r) < dimms[ch<<1].ranks)) || \ + ((dimms[(ch<<1) + 1].card_type != RAW_CARD_UNPOPULATED) && ((r) >= 2) && ((r) < (dimms[(ch<<1) + 1].ranks + 2)))) +#define IF_RANK_POPULATED(dimms, ch, r) \ + if (((dimms[ch<<1].card_type != RAW_CARD_UNPOPULATED) \ + && ((r) < dimms[ch<<1].ranks)) \ + || ((dimms[(ch<<1) + 1].card_type != RAW_CARD_UNPOPULATED) \ + && ((r) >= 2) && ((r) < (dimms[(ch<<1) + 1].ranks + 2)))) +#define FOR_EACH_RANK_IN_CHANNEL(r) \ + for (r = 0; r < RANKS_PER_CHANNEL; ++r) +#define FOR_EACH_POPULATED_RANK_IN_CHANNEL(dimms, ch, r) \ + FOR_EACH_RANK_IN_CHANNEL(r) IF_RANK_POPULATED(dimms, ch, r) +#define FOR_EACH_RANK(ch, r) \ + FOR_EACH_CHANNEL(ch) FOR_EACH_RANK_IN_CHANNEL(r) +#define FOR_EACH_POPULATED_RANK(dimms, ch, r) \ + FOR_EACH_RANK(ch, r) IF_RANK_POPULATED(dimms, ch, r) +#define FOR_EACH_BYTELANE(l) \ + for (l = 0; l < TOTAL_BYTELANES; l++) +#define FOR_EACH_POPULATED_CHANNEL_AND_BYTELANE(dimms, ch, l) \ + FOR_EACH_POPULATED_CHANNEL (dimms, ch) FOR_EACH_BYTELANE(l) + +#define DDR3_MAX_CAS 18 + +enum fsb_clock { + FSB_CLOCK_800MHz = 0, + FSB_CLOCK_1066MHz = 1, + FSB_CLOCK_1333MHz = 2, +}; + +enum mem_clock { + MEM_CLOCK_400MHz = 0, + MEM_CLOCK_533MHz = 1, + MEM_CLOCK_667MHz = 2, + MEM_CLOCK_800MHz = 3, + MEM_CLOCK_1066MHz = 4, + MEM_CLOCK_1333MHz = 5, +}; + +enum ddr { + DDR2 = 2, + DDR3 = 3, +}; + +enum ddrxspd { + DDR2SPD = 0x8, + DDR3SPD = 0xb, +}; + +enum chip_width { /* as in DDR3 spd */ + CHIP_WIDTH_x4 = 0, + CHIP_WIDTH_x8 = 1, + CHIP_WIDTH_x16 = 2, + CHIP_WIDTH_x32 = 3, +}; + +enum chip_cap { /* as in DDR3 spd */ + CHIP_CAP_256M = 0, + CHIP_CAP_512M = 1, + CHIP_CAP_1G = 2, + CHIP_CAP_2G = 3, + CHIP_CAP_4G = 4, + CHIP_CAP_8G = 5, + CHIP_CAP_16G = 6, +}; + +struct dll_setting { + u8 tap; + u8 pi; + u8 db_en; + u8 db_sel; + u8 clk_delay; + u8 coarse; +}; + +struct rt_dqs_setting { + u8 tap; + u8 pi; +}; + +enum n_banks { + N_BANKS_4 = 0, + N_BANKS_8 = 1, +}; + +struct timings { + unsigned int CAS; + unsigned int tclk; + enum fsb_clock fsb_clk; + enum mem_clock mem_clk; + unsigned int tRAS; + unsigned int tRP; + unsigned int tRCD; + unsigned int tWR; + unsigned int tRFC; + unsigned int tWTR; + unsigned int tRRD; + unsigned int tRTP; +}; + +struct dimminfo { + unsigned int card_type; /* 0xff: unpopulated, 0xa - 0xf: raw card type A - F */ + enum chip_width width; + unsigned int page_size; /* of whole DIMM in Bytes (4096 or 8192) */ + enum n_banks n_banks; + unsigned int ranks; + unsigned int rows; + unsigned int cols; + u16 spd_crc; + u8 mirrored; +}; + +struct rcven_timings { + u8 min_common_coarse; + u8 coarse_offset[TOTAL_BYTELANES]; + u8 medium[TOTAL_BYTELANES]; + u8 tap[TOTAL_BYTELANES]; + u8 pi[TOTAL_BYTELANES]; +}; + +/* The setup is up to two DIMMs per channel */ +struct sysinfo { + int boot_path; + enum fsb_clock max_fsb; + + int dimm_config[2]; + int spd_type; + int channel_capacity[2]; + struct timings selected_timings; + struct dimminfo dimms[4]; + u8 spd_map[4]; + struct rcven_timings rcven_t[TOTAL_CHANNELS]; + /* + * The rt_dqs delay register for rank 0 seems to be used + * for all other ranks on the channel, so only save that + */ + struct rt_dqs_setting rt_dqs[TOTAL_CHANNELS][TOTAL_BYTELANES]; + struct dll_setting dqs_settings[TOTAL_CHANNELS][TOTAL_BYTELANES]; + struct dll_setting dq_settings[TOTAL_CHANNELS][TOTAL_BYTELANES]; + u8 nmode; + u8 stacked_mode; +}; + +enum ddr2_signals { + CLKSET0 = 0, + CTRL0, + CLKSET1, + CMD, + CTRL1, + CTRL2, + CTRL3, +}; + +void sdram_initialize(int boot_path, const u8 *spd_map); +void do_raminit(struct sysinfo *, int fast_boot); +void rcven(struct sysinfo *s); +u32 fsb_to_mhz(u32 speed); +u32 ddr_to_mhz(u32 speed); +u32 test_address(int channel, int rank); +void dqsset(u8 ch, u8 lane, const struct dll_setting *setting); +void dqset(u8 ch, u8 lane, const struct dll_setting *setting); +void rt_set_dqs(u8 channel, u8 lane, u8 rank, struct rt_dqs_setting *dqs_setting); +int do_write_training(struct sysinfo *s); +int do_read_training(struct sysinfo *s); +void search_write_leveling(struct sysinfo *s); +void send_jedec_cmd(const struct sysinfo *s, u8 r, u8 ch, u8 cmd, u32 val); + +extern const struct dll_setting default_ddr2_667_ctrl[7]; +extern const struct dll_setting default_ddr2_800_ctrl[7]; +extern const struct dll_setting default_ddr3_800_ctrl[2][7]; +extern const struct dll_setting default_ddr3_1067_ctrl[2][7]; +extern const struct dll_setting default_ddr3_1333_ctrl[2][7]; +extern const struct dll_setting default_ddr2_667_dqs[TOTAL_BYTELANES]; +extern const struct dll_setting default_ddr2_800_dqs[TOTAL_BYTELANES]; +extern const struct dll_setting default_ddr3_800_dqs[2][TOTAL_BYTELANES]; +extern const struct dll_setting default_ddr3_1067_dqs[2][TOTAL_BYTELANES]; +extern const struct dll_setting default_ddr3_1333_dqs[2][TOTAL_BYTELANES]; +extern const struct dll_setting default_ddr2_667_dq[TOTAL_BYTELANES]; +extern const struct dll_setting default_ddr2_800_dq[TOTAL_BYTELANES]; +extern const struct dll_setting default_ddr3_800_dq[2][TOTAL_BYTELANES]; +extern const struct dll_setting default_ddr3_1067_dq[2][TOTAL_BYTELANES]; +extern const struct dll_setting default_ddr3_1333_dq[2][TOTAL_BYTELANES]; +extern const u8 ddr3_emrs1_rtt_nom_config[16][4]; +extern const u8 post_jedec_tab[3][4][2]; +extern const u32 ddr3_c2_tab[2][3][6][2]; +extern const u8 ddr3_c2_x264[3][6]; +extern const u16 ddr3_c2_x23c[3][6]; + +#endif /* __X4X_RAMINIT_H__ */ |