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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __NORTHBRIDGE_INTEL_GM45_GM45_H__
#define __NORTHBRIDGE_INTEL_GM45_GM45_H__
#include <southbridge/intel/i82801ix/i82801ix.h>
#ifndef __ACPI__
#include <stdint.h>
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... ?
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 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;
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_mhz;
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,
};
#endif
/* 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) */
#ifndef __ACPI__
#define DEFAULT_MCHBAR ((u8 *)0xfed14000)
#define DEFAULT_DMIBAR ((u8 *)0xfed18000)
#else
#define DEFAULT_MCHBAR 0xfed14000
#define DEFAULT_DMIBAR 0xfed18000
#endif
#define DEFAULT_EPBAR 0xfed19000
#define DEFAULT_HECIBAR ((u8 *)0xfed1a000)
#define IOMMU_BASE1 0xfed90000
#define IOMMU_BASE2 0xfed91000
#define IOMMU_BASE3 0xfed92000
#define IOMMU_BASE4 0xfed93000
/*
* 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
*/
#define MCHBAR8(x) *((volatile u8 *)(DEFAULT_MCHBAR + x))
#define MCHBAR16(x) *((volatile u16 *)(DEFAULT_MCHBAR + x))
#define MCHBAR32(x) *((volatile u32 *)(DEFAULT_MCHBAR + x))
#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)
/* 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)
/* 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 DMIBAR8(x) *((volatile u8 *)(DEFAULT_DMIBAR + x))
#define DMIBAR16(x) *((volatile u16 *)(DEFAULT_DMIBAR + x))
#define DMIBAR32(x) *((volatile u32 *)(DEFAULT_DMIBAR + x))
#define DMIVC0RCTL 0x14
#define DMIVC1RCTL 0x20
#define DMIVC1RSTS 0x26
#define DMIESD 0x44
#define DMILE1D 0x50
#define DMILE1A 0x58
#define DMILE2D 0x60
#define DMILE2A 0x68
/*
* EPBAR
*/
#define EPBAR8(x) *((volatile u8 *)(DEFAULT_EPBAR + x))
#define EPBAR16(x) *((volatile u16 *)(DEFAULT_EPBAR + x))
#define EPBAR32(x) *((volatile u32 *)(DEFAULT_EPBAR + x))
#define EPESD 0x44
#define EPLE1D 0x50
#define EPLE1A 0x58
#define EPLE2D 0x60
#ifndef __ACPI__
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(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);
int decode_pcie_bar(u32 *const base, u32 *const len);
#include <device/device.h>
struct acpi_rsdp;
unsigned long northbridge_write_acpi_tables(const struct device *device, unsigned long start,
struct acpi_rsdp *rsdp);
#endif /* !__ACPI__ */
#endif /* __NORTHBRIDGE_INTEL_GM45_GM45_H__ */