/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef __NORTHBRIDGE_INTEL_GM45_GM45_H__ #define __NORTHBRIDGE_INTEL_GM45_GM45_H__ #include typedef enum { FSB_CLOCK_1067MHz = 0, FSB_CLOCK_800MHz = 1, FSB_CLOCK_667MHz = 2, } fsb_clock_t; typedef enum { /* Steppings below B1 were pre-production, conversion stepping A1 is a newer GL40 with support for 800 MT/s on FSB/DDR. We'll support B1, B2, B3, and conversion stepping A1. */ STEPPING_A0 = 0, STEPPING_A1 = 1, STEPPING_A2 = 2, STEPPING_A3 = 3, STEPPING_B0 = 4, STEPPING_B1 = 5, STEPPING_B2 = 6, STEPPING_B3 = 7, STEPPING_CONVERSION_A1 = 9, } stepping_t; typedef enum { GMCH_GM45 = 0, GMCH_GM47, GMCH_GM49, GMCH_GE45, GMCH_GL40, GMCH_GL43, GMCH_GS40, GMCH_GS45, GMCH_PM45, GMCH_UNKNOWN } gmch_gfx_t; typedef enum { MEM_CLOCK_533MHz = 0, MEM_CLOCK_400MHz = 1, MEM_CLOCK_333MHz = 2, MEM_CLOCK_1067MT = 0, MEM_CLOCK_800MT = 1, MEM_CLOCK_667MT = 2, } mem_clock_t; typedef enum { DDR1 = 1, DDR2 = 2, DDR3 = 3, } ddr_t; typedef enum { CHANNEL_MODE_SINGLE, CHANNEL_MODE_DUAL_ASYNC, CHANNEL_MODE_DUAL_INTERLEAVED, } channel_mode_t; typedef enum { /* as in DDR3 spd */ CHIP_WIDTH_x4 = 0, CHIP_WIDTH_x8 = 1, CHIP_WIDTH_x16 = 2, CHIP_WIDTH_x32 = 3, } chip_width_t; typedef enum { /* 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, } chip_capacity_t; typedef enum { /* as in DDR2 spd */ REFRESH_15_625 = 0, REFRESH_3_9 = 1, REFRESH_7_8 = 2, REFRESH_31_25 = 3, REFRESH_62_5 = 4, REFRESH_125 = 5, } refresh_rate_t; typedef struct { unsigned int CAS; fsb_clock_t fsb_clock; mem_clock_t mem_clock; channel_mode_t channel_mode; unsigned int tRAS; unsigned int tRP; unsigned int tRCD; unsigned int tRFC; unsigned int tWR; unsigned int tRD; unsigned int tRRD; unsigned int tFAW; unsigned int tWL; } timings_t; typedef struct { unsigned int card_type; /* 0x0: unpopulated, 0xa - 0xf: raw card type A - F */ chip_width_t chip_width; chip_capacity_t chip_capacity; refresh_rate_t refresh; unsigned int page_size; /* of whole DIMM in Bytes (4096 or 8192) */ unsigned int banks; unsigned int ranks; unsigned int rank_capacity_mb; /* per rank in Megabytes */ } dimminfo_t; /* The setup is one DIMM per channel, so there's no need to find a common timing setup between multiple chips (but chip and controller still need to be coordinated */ typedef struct { stepping_t stepping; int txt_enabled; int cores; gmch_gfx_t gfx_type; int max_ddr2_mt; int max_ddr3_mt; fsb_clock_t max_fsb; int max_fsb_mhz; int max_render_mhz; int enable_igd; int enable_peg; u16 ggc; /* to be filled in romstage main: */ int spd_type; timings_t selected_timings; dimminfo_t dimms[2]; u8 spd_map[4]; int gs45_low_power_mode; /* low power mode of GMCH_GS45 */ int sff; /* small form factor option (soldered down DIMM) */ } sysinfo_t; #define TOTAL_CHANNELS 2 #define CHANNEL_IS_POPULATED(dimms, idx) (dimms[idx].card_type != 0) #define CHANNEL_IS_CARDF(dimms, idx) (dimms[idx].card_type == 0xf) #define IF_CHANNEL_POPULATED(dimms, idx) if (dimms[idx].card_type != 0) #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 /* Only two may be populated */ #define IF_RANK_POPULATED(dimms, ch, r) \ if (dimms[ch].card_type && ((r) < dimms[ch].ranks)) #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 DDR3_MAX_CAS 18 enum { VCO_2666 = 4, VCO_3200 = 0, VCO_4000 = 1, VCO_5333 = 2, }; /* Offsets of read/write training results in CMOS. They will be restored upon S3 resumes. */ #define CMOS_READ_TRAINING 0x80 /* 16 bytes */ #define CMOS_WRITE_TRAINING 0x90 /* 16 bytes (could be reduced to 10 bytes) */ #include "memmap.h" /* * D0:F0 */ #define D0F0_EPBAR_LO 0x40 #define D0F0_EPBAR_HI 0x44 #define D0F0_MCHBAR_LO 0x48 #define D0F0_MCHBAR_HI 0x4c #define D0F0_GGC 0x52 #define D0F0_DEVEN 0x54 #define D0F0_PCIEXBAR_LO 0x60 #define D0F0_PCIEXBAR_HI 0x64 #define D0F0_DMIBAR_LO 0x68 #define D0F0_DMIBAR_HI 0x6c #define D0F0_PMBASE 0x78 #define D0F0_PAM(x) (0x90 + (x)) /* 0-6 */ #define D0F0_REMAPBASE 0x98 #define D0F0_REMAPLIMIT 0x9a #define D0F0_SMRAM 0x9d #define D0F0_ESMRAMC 0x9e #define D0F0_TOM 0xa0 #define D0F0_TOUUD 0xa2 #define D0F0_TOLUD 0xb0 #define D0F0_SKPD 0xdc /* Scratchpad Data */ #define D0F0_CAPID0 0xe0 /* * D1:F0 PEG */ #define PEG_CAP 0xa2 #define SLOTCAP 0xb4 #define PEGLC 0xec #define D1F0_VCCAP 0x104 #define D1F0_VC0RCTL 0x114 /* * Graphics frequencies */ #define GCFGC_PCIDEV PCI_DEV(0, 2, 0) #define GCFGC_OFFSET 0xf0 #define GCFGC_CR_SHIFT 0 #define GCFGC_CR_MASK (0xf << GCFGC_CR_SHIFT) #define GCFGC_CS_SHIFT 8 #define GCFGC_CS_MASK (0xf << GCFGC_CS_SHIFT) #define GCFGC_CD_SHIFT 12 #define GCFGC_CD_MASK (0x1 << GCFGC_CD_SHIFT) #define GCFGC_UPDATE_SHIFT 5 #define GCFGC_UPDATE (0x1 << GCFGC_UPDATE_SHIFT) /* * MCHBAR */ #include #define HPLLVCO_MCHBAR 0x0c0f #define PMSTS_MCHBAR 0x0f14 /* Self refresh channel status */ #define PMSTS_WARM_RESET (1 << 1) #define PMSTS_BOTH_SELFREFRESH (1 << 0) #define CLKCFG_MCHBAR 0x0c00 #define CLKCFG_FSBCLK_SHIFT 0 #define CLKCFG_FSBCLK_MASK (7 << CLKCFG_FSBCLK_SHIFT) #define CLKCFG_MEMCLK_SHIFT 4 #define CLKCFG_MEMCLK_MASK (7 << CLKCFG_MEMCLK_SHIFT) #define CLKCFG_UPDATE (1 << 12) #define SSKPD_MCHBAR 0x0c1c #define SSKPD_CLK_SHIFT 0 #define SSKPD_CLK_MASK (7 << SSKPD_CLK_SHIFT) #define DCC_MCHBAR 0x200 #define DCC_NO_CHANXOR (1 << 10) #define DCC_INTERLEAVED (1 << 1) #define DCC_CMD_SHIFT 16 #define DCC_CMD_MASK (7 << DCC_CMD_SHIFT) #define DCC_CMD_NOP (1 << DCC_CMD_SHIFT) #define DCC_CMD_ABP (2 << DCC_CMD_SHIFT) /* For mode register mr0: */ #define DCC_SET_MREG (3 << DCC_CMD_SHIFT) /* For extended mode registers mr1 to mr3: */ #define DCC_SET_EREG (4 << DCC_CMD_SHIFT) #define DCC_SET_EREG_SHIFT 21 #define DCC_SET_EREG_MASK (DCC_CMD_MASK | (3 << DCC_SET_EREG_SHIFT)) #define DCC_SET_EREGx(x) ((DCC_SET_EREG | \ (((x) - 1) << DCC_SET_EREG_SHIFT)) & \ DCC_SET_EREG_MASK) #define DCC_CMD_CBR (6 << DCC_CMD_SHIFT) /* Per channel DRAM Row Attribute registers (32-bit) */ #define CxDRA_MCHBAR(x) (0x1208 + ((x) * 0x0100)) #define CxDRA_PAGESIZE_SHIFT(r) ((r) * 4) /* Per rank r */ #define CxDRA_PAGESIZE_MASKr(r) (0x7 << CxDRA_PAGESIZE_SHIFT(r)) #define CxDRA_PAGESIZE_MASK 0x0000ffff #define CxDRA_PAGESIZE(r, p) /* for log2(dimm page size in bytes) p */ \ ((((p) - 10) << CxDRA_PAGESIZE_SHIFT(r)) & CxDRA_PAGESIZE_MASKr(r)) #define CxDRA_BANKS_SHIFT(r) (((r) * 3) + 16) #define CxDRA_BANKS_MASKr(r) (0x3 << CxDRA_BANKS_SHIFT(r)) #define CxDRA_BANKS_MASK 0x07ff0000 #define CxDRA_BANKS(r, b) /* for number of banks b */ \ (((b) << (CxDRA_BANKS_SHIFT(r) - 3)) & CxDRA_BANKS_MASKr(r)) /* * Per channel DRAM Row Boundary registers (32-bit) * Every two ranks share one register and must be programmed at the same time. * All registers (4 ranks per channel) have to be set. */ #define CxDRBy_MCHBAR(x, r) (0x1200 + ((x) * 0x0100) + (((r) / 2) * 4)) #define CxDRBy_BOUND_SHIFT(r) (((r) % 2) * 16) #define CxDRBy_BOUND_MASK(r) (0x1fc << CxDRBy_BOUND_SHIFT(r)) #define CxDRBy_BOUND_MB(r, b) /* for boundary in MB b */ \ ((((b) >> 5) << CxDRBy_BOUND_SHIFT(r)) & CxDRBy_BOUND_MASK(r)) #define CxDRC0_MCHBAR(x) (0x1230 + ((x) * 0x0100)) #define CxDRC0_RANKEN0 (1 << 24) /* Rank Enable */ #define CxDRC0_RANKEN1 (1 << 25) #define CxDRC0_RANKEN2 (1 << 26) #define CxDRC0_RANKEN3 (1 << 27) #define CxDRC0_RANKEN(r) (1 << (24 + (r))) #define CxDRC0_RANKEN_MASK (0xf << 24) #define CxDRC0_RMS_SHIFT 8 /* Refresh Mode Select */ #define CxDRC0_RMS_MASK (7 << CxDRC0_RMS_SHIFT) #define CxDRC0_RMS_78US (2 << CxDRC0_RMS_SHIFT) #define CxDRC0_RMS_39US (3 << CxDRC0_RMS_SHIFT) #define CxDRC1_MCHBAR(x) (0x1234 + ((x) * 0x0100)) #define CxDRC1_SSDS_SHIFT 24 #define CxDRC1_SSDS_MASK (0xff << CxDRC1_SSDS_SHIFT) #define CxDRC1_DS (0x91 << CxDRC1_SSDS_SHIFT) #define CxDRC1_SS (0xb1 << CxDRC1_SSDS_SHIFT) #define CxDRC1_NOTPOP(r) (1 << (16 + (r))) /* Write 1 for Not Populated */ #define CxDRC1_NOTPOP_MASK (0xf << 16) #define CxDRC1_MUSTWR (3 << 11) #define CxDRC2_MCHBAR(x) (0x1238 + ((x) * 0x0100)) #define CxDRC2_NOTPOP(r) (1 << (24 + (r))) /* Write 1 for Not Populated */ #define CxDRC2_NOTPOP_MASK (0xf << 24) #define CxDRC2_MUSTWR (1 << 12) #define CxDRC2_CLK1067MT (1 << 0) /* DRAM Timing registers (32-bit each) */ #define CxDRT0_MCHBAR(x) (0x1210 + ((x) * 0x0100)) #define CxDRT0_BtB_WtP_SHIFT 26 #define CxDRT0_BtB_WtP_MASK (0x1f << CxDRT0_BtB_WtP_SHIFT) #define CxDRT0_BtB_WtR_SHIFT 20 #define CxDRT0_BtB_WtR_MASK (0x1f << CxDRT0_BtB_WtR_SHIFT) #define CxDRT1_MCHBAR(x) (0x1214 + ((x) * 0x0100)) #define CxDRT2_MCHBAR(x) (0x1218 + ((x) * 0x0100)) #define CxDRT3_MCHBAR(x) (0x121c + ((x) * 0x0100)) #define CxDRT4_MCHBAR(x) (0x1220 + ((x) * 0x0100)) #define CxDRT5_MCHBAR(x) (0x1224 + ((x) * 0x0100)) #define CxDRT6_MCHBAR(x) (0x1228 + ((x) * 0x0100)) /* Clock disable registers (32-bit each) */ #define CxDCLKDIS_MCHBAR(x) (0x120c + ((x) * 0x0100)) #define CxDCLKDIS_MASK 3 #define CxDCLKDIS_ENABLE 3 /* Always enable both clock pairs. */ /* On-Die-Termination registers (2x 32-bit per channel) */ #define CxODT_HIGH(x) (0x124c + ((x) * 0x0100)) #define CxODT_LOW(x) (0x1248 + ((x) * 0x0100)) /* Write Training registers. */ #define CxWRTy_MCHBAR(ch, s) (0x1470 + ((ch) * 0x0100) + ((3 - (s)) * 4)) #define CxGTEW(x) (0x1270 + ((x) * 0x100)) #define CxGTC(x) (0x1274 + ((x) * 0x100)) #define CxDTPEW(x) (0x1278 + ((x) * 0x100)) #define CxDTAEW(x) (0x1280 + ((x) * 0x100)) #define CxDTC(x) (0x1288 + ((x) * 0x100)) /* * DMIBAR */ #define DMIVCECH 0x000 /* 32bit */ #define DMIPVCCAP1 0x004 /* 32bit */ #define DMIVC0RCAP 0x010 /* 32bit */ #define DMIVC0RCTL 0x014 /* 32bit */ #define DMIVC0RSTS 0x01a /* 16bit */ #define VC0NP (1 << 1) #define DMIVC1RCAP 0x01c /* 32bit */ #define DMIVC1RCTL 0x020 /* 32bit */ #define DMIVC1RSTS 0x026 /* 16bit */ #define VC1NP (1 << 1) #define DMIESD 0x044 /* 32bit */ #define DMILE1D 0x050 /* 32bit */ #define DMILE1A 0x058 /* 64bit */ #define DMILE2D 0x060 /* 32bit */ #define DMILE2A 0x068 /* 64bit */ #define DMILCAP 0x084 /* 32bit */ #define DMILCTL 0x088 /* 16bit */ #define DMILSTS 0x08a /* 16bit */ /* * EPBAR */ #define EPPVCCAP1 0x004 /* 32bit */ #define EPPVCCTL 0x00c /* 32bit */ #define EPVC0RCAP 0x010 /* 32bit */ #define EPVC0RCTL 0x014 /* 32bit */ #define EPVC0RSTS 0x01a /* 16bit */ #define EPVC1RCAP 0x01c /* 32bit */ #define EPVC1RCTL 0x020 /* 32bit */ #define EPVC1RSTS 0x026 /* 16bit */ #define EPVC1MTS 0x028 /* 32bit */ #define EPVC1ITC 0x02c /* 32bit */ #define EPVC1IST 0x038 /* 64bit */ #define EPESD 0x044 /* 32bit */ #define EPLE1D 0x050 /* 32bit */ #define EPLE1A 0x058 /* 64bit */ #define EPLE2D 0x060 /* 32bit */ #define EPLE2A 0x068 /* 64bit */ #define EP_PORTARB(x) (0x100 + 4 * (x)) /* 256bit */ void gm45_early_init(void); void gm45_early_reset(void); void enter_raminit_or_reset(void); void get_gmch_info(sysinfo_t *); void raminit(sysinfo_t *, int s3resume); void raminit_thermal(const sysinfo_t *); void init_igd(const sysinfo_t *const); void init_pm(const sysinfo_t *, int do_freq_scaling_cfg); void igd_compute_ggc(sysinfo_t *const sysinfo); int raminit_read_vco_index(void); u32 raminit_get_rank_addr(unsigned int channel, unsigned int rank); void raminit_rcomp_calibration(stepping_t stepping); void raminit_reset_readwrite_pointers(void); void raminit_receive_enable_calibration(int ddr_type, const timings_t *, const dimminfo_t *); void raminit_write_training(const mem_clock_t, const dimminfo_t *, int s3resume); void raminit_read_training(const dimminfo_t *, int s3resume); void gm45_late_init(stepping_t); u32 decode_igd_memory_size(u32 gms); u32 decode_igd_gtt_size(u32 gsm); u32 decode_tseg_size(u8 esmramc); void init_iommu(void); /* romstage mainboard hookups */ void mb_setup_superio(void); /* optional */ void get_mb_spd_addrmap(u8 spd_addrmap[4]); void mb_pre_raminit_setup(sysinfo_t *); /* optional */ void mb_post_raminit_setup(void); /* optional */ struct blc_pwm_t { char ascii_string[13]; int pwm_freq; /* In Hz */ }; int get_blc_values(const struct blc_pwm_t **entries); u16 get_blc_pwm_freq_value(const char *edid_ascii_string); #include struct acpi_rsdp; unsigned long northbridge_write_acpi_tables(const struct device *device, unsigned long start, struct acpi_rsdp *rsdp); #endif /* __NORTHBRIDGE_INTEL_GM45_GM45_H__ */