meminit.h File Reference

#include <stddef.h>
#include <stdint.h>
#include <fsp/soc_binding.h>

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Data Structures
struct	lpddr4_chan_swizzle_cfg
struct	lpddr4_swizzle_cfg
struct	lpddr4_sku
struct	lpddr4_cfg

Enumerations
enum	{   LP4_PHYS_CH0A , LP4_PHYS_CH0B , LP4_PHYS_CH1A , LP4_PHYS_CH1B ,   LP4_NUM_PHYS_CHANNELS }
enum	{ LP4_LCH0 , LP4_LCH1 }
enum	{   LP4_DQS0 , LP4_DQS1 , LP4_DQS2 , LP4_DQS3 ,   LP4_NUM_BYTE_LANES , DQ_BITS_PER_DQS = 8 }
enum	{ LP4_SPEED_1600 = 1600 , LP4_SPEED_2133 = 2133 , LP4_SPEED_2400 = 2400 }
enum	{   LP4_4Gb_DENSITY = 4 , LP4_6Gb_DENSITY = 6 , LP4_8Gb_DENSITY = 8 , LP4_12Gb_DENSITY = 12 ,   LP4_16Gb_DENSITY = 16 }
enum	{ ODT_A_B_HIGH_LOW = 0 << 1 , ODT_A_B_HIGH_HIGH = 1 << 1 , nWR_24 = 1 << 5 }

Functions
void	meminit_lpddr4 (FSP_M_CONFIG *cfg, int speed)
void	meminit_lpddr4_enable_channel (FSP_M_CONFIG *cfg, int logical_chan, int rank_density_gb, int dual_rank, const struct lpddr4_swizzle_cfg *scfg)
void	meminit_lpddr4_by_sku (FSP_M_CONFIG *cfg, const struct lpddr4_cfg *lpcfg, size_t sku_id)
void	save_lpddr4_dimm_info (const struct lpddr4_cfg *lpcfg, size_t mem_sku)
void	save_lpddr4_dimm_info_part_num (const char *dram_part_num)
size_t	memory_in_system_in_mib (void)
size_t	iohole_in_mib (void)

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
LP4_PHYS_CH0A
LP4_PHYS_CH0B
LP4_PHYS_CH1A
LP4_PHYS_CH1B
LP4_NUM_PHYS_CHANNELS

Definition at line 17 of file meminit.h.

anonymous enum

anonymous enum

Enumerator
LP4_LCH0
LP4_LCH1

Definition at line 26 of file meminit.h.

anonymous enum

anonymous enum

Enumerator
LP4_DQS0
LP4_DQS1
LP4_DQS2
LP4_DQS3
LP4_NUM_BYTE_LANES
DQ_BITS_PER_DQS

Definition at line 36 of file meminit.h.

anonymous enum

anonymous enum

Enumerator
LP4_SPEED_1600
LP4_SPEED_2133
LP4_SPEED_2400

Definition at line 45 of file meminit.h.

anonymous enum

anonymous enum

Enumerator
LP4_4Gb_DENSITY
LP4_6Gb_DENSITY
LP4_8Gb_DENSITY
LP4_12Gb_DENSITY
LP4_16Gb_DENSITY

Definition at line 53 of file meminit.h.

anonymous enum

anonymous enum

Enumerator
ODT_A_B_HIGH_LOW
ODT_A_B_HIGH_HIGH
nWR_24

Definition at line 70 of file meminit.h.

Function Documentation

iohole_in_mib()

size_t iohole_in_mib

(

void

)

Definition at line 36 of file meminit.c.

References GiB, and MiB.

meminit_lpddr4()

void meminit_lpddr4	(	FSP_M_CONFIG *	cfg,
		int	speed
	)

Definition at line 174 of file meminit.c.

References BIOS_INFO, fsp_memory_profile(), printk, set_lpddr4_defaults(), and validate_speed().

Referenced by meminit_lpddr4_by_sku().

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meminit_lpddr4_by_sku()

void meminit_lpddr4_by_sku	(	FSP_M_CONFIG *	cfg,
		const struct lpddr4_cfg *	lpcfg,
		size_t	sku_id
	)

Definition at line 315 of file meminit.c.

References BIOS_ERR, BIOS_INFO, LP4_LCH0, LP4_LCH1, meminit_lpddr4(), meminit_lpddr4_enable_channel(), lpddr4_cfg::num_skus, printk, sku, sku_id(), lpddr4_cfg::skus, and lpddr4_cfg::swizzle_config.

Referenced by mainboard_memory_init_params().

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meminit_lpddr4_enable_channel()

void meminit_lpddr4_enable_channel	(	FSP_M_CONFIG *	cfg,
		int	logical_chan,
		int	rank_density_gb,
		int	dual_rank,
		const struct lpddr4_swizzle_cfg *	scfg
	)

Definition at line 274 of file meminit.c.

References accumulate_channel_memory(), BIOS_ERR, enable_logical_chan0(), enable_logical_chan1(), LP4_12Gb_DENSITY, LP4_16Gb_DENSITY, LP4_4Gb_DENSITY, LP4_6Gb_DENSITY, LP4_8Gb_DENSITY, LP4_LCH0, LP4_LCH1, and printk.

Referenced by meminit_lpddr4_by_sku().

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memory_in_system_in_mib()

size_t memory_in_system_in_mib

(

void

)

Definition at line 12 of file meminit.c.

References memory_size_mib.

save_lpddr4_dimm_info()

void save_lpddr4_dimm_info	(	const struct lpddr4_cfg *	lpcfg,
		size_t	mem_sku
	)

Definition at line 93 of file meminit_util_apl.c.

References BIOS_ERR, lp4cfg, NULL, lpddr4_cfg::num_skus, lpddr4_sku::part_num, printk, save_lpddr4_dimm_info_part_num(), and lpddr4_cfg::skus.

Referenced by mainboard_save_dimm_info(), and save_dimm_info_by_sku_config().

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save_lpddr4_dimm_info_part_num()

void save_lpddr4_dimm_info_part_num

(

const char *

dram_part_num

)

Definition at line 17 of file meminit_util_apl.c.

References ARRAY_SIZE, BIOS_DEBUG, BIOS_ERR, cbmem_add(), CBMEM_ID_MEMINFO, memory_info::dimm, memory_info::dimm_cnt, dimm_info_fill(), fsp_find_extension_hob_by_guid(), FSP_SMBIOS_MEMORY_INFO_GUID, memset(), NULL, printk, smbios_memory_info_guid, SPD_SAVE_OFFSET_SERIAL, and strlen().

Referenced by mainboard_save_dimm_info(), and save_lpddr4_dimm_info().

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