meminit.c File Reference

#include <console/console.h>
#include <fsp/util.h>
#include <memory_info.h>
#include <soc/meminit.h>
#include <stddef.h>
#include <fsp/soc_binding.h>
#include <string.h>

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Data Structures
struct	speed_mapping
struct	fsp_speed_profiles

Functions
size_t	memory_in_system_in_mib (void)
static void	accumulate_channel_memory (int density, int dual_rank)
size_t	iohole_in_mib (void)
static void	set_lpddr4_defaults (FSP_M_CONFIG *cfg)
static const struct fsp_speed_profiles *	get_fsp_profile (void)
static int	validate_speed (int speed)
static int	fsp_memory_profile (int speed)
void	meminit_lpddr4 (FSP_M_CONFIG *cfg, int speed)
static void	enable_logical_chan0 (FSP_M_CONFIG *cfg, int rank_density, int dual_rank, const struct lpddr4_swizzle_cfg *scfg)
static void	enable_logical_chan1 (FSP_M_CONFIG *cfg, int rank_density, int dual_rank, const struct lpddr4_swizzle_cfg *scfg)
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)
uint8_t	fsp_memory_soc_version (void)

Variables
static size_t	memory_size_mib
static const struct speed_mapping	apl_mappings []
static const struct fsp_speed_profiles	apl_profile
static const struct speed_mapping	glk_mappings []
static const struct fsp_speed_profiles	glk_profile

Function Documentation

accumulate_channel_memory()

static void accumulate_channel_memory ( int  density, int  dual_rank  )

static

Definition at line 17 of file meminit.c.

References GiB, memory_size_mib, and MiB.

Referenced by meminit_lpddr4_enable_channel().

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enable_logical_chan0()

static void enable_logical_chan0 ( FSP_M_CONFIG *  cfg, int  rank_density, int  dual_rank, const struct lpddr4_swizzle_cfg *  scfg  )

static

Definition at line 184 of file meminit.c.

References DQ_BITS_PER_DQS, lpddr4_chan_swizzle_cfg::dqs, LP4_DQS0, LP4_DQS1, LP4_DQS2, LP4_DQS3, LP4_PHYS_CH0A, LP4_PHYS_CH0B, memcpy(), and lpddr4_swizzle_cfg::phys.

Referenced by meminit_lpddr4_enable_channel().

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enable_logical_chan1()

static void enable_logical_chan1 ( FSP_M_CONFIG *  cfg, int  rank_density, int  dual_rank, const struct lpddr4_swizzle_cfg *  scfg  )

static

Definition at line 229 of file meminit.c.

References DQ_BITS_PER_DQS, lpddr4_chan_swizzle_cfg::dqs, LP4_DQS0, LP4_DQS1, LP4_DQS2, LP4_DQS3, LP4_PHYS_CH1A, LP4_PHYS_CH1B, memcpy(), and lpddr4_swizzle_cfg::phys.

Referenced by meminit_lpddr4_enable_channel().

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fsp_memory_profile()

static int fsp_memory_profile ( int  speed )

static

Definition at line 160 of file meminit.c.

References speed_mapping::fsp_value, get_fsp_profile(), speed_mapping::logical, fsp_speed_profiles::mappings, and fsp_speed_profiles::num_mappings.

Referenced by meminit_lpddr4().

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fsp_memory_soc_version()

uint8_t fsp_memory_soc_version

(

void

)

Definition at line 353 of file meminit.c.

get_fsp_profile()

static const struct fsp_speed_profiles* get_fsp_profile ( void  )

static

Definition at line 136 of file meminit.c.

References apl_profile, CONFIG, and glk_profile.

Referenced by fsp_memory_profile(), and validate_speed().

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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.

set_lpddr4_defaults()

static void set_lpddr4_defaults ( FSP_M_CONFIG *  cfg )

static

Definition at line 41 of file meminit.c.

Referenced by meminit_lpddr4().

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validate_speed()

static int validate_speed ( int  speed )

static

Definition at line 144 of file meminit.c.

References BIOS_WARNING, get_fsp_profile(), speed_mapping::logical, LP4_SPEED_1600, fsp_speed_profiles::mappings, fsp_speed_profiles::num_mappings, and printk.

Referenced by meminit_lpddr4().

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Variable Documentation

apl_mappings

const struct speed_mapping apl_mappings[]

static

Initial value:

= {
        { .logical = LP4_SPEED_1600, .fsp_value = 0x9 },
        { .logical = LP4_SPEED_2133, .fsp_value = 0xa },
        { .logical = LP4_SPEED_2400, .fsp_value = 0xb },
}

Definition at line 41 of file meminit.c.

apl_profile

const struct fsp_speed_profiles apl_profile

static

Initial value:

= {
        .mappings = apl_mappings,
        .num_mappings = ARRAY_SIZE(apl_mappings),
}

Definition at line 41 of file meminit.c.

Referenced by get_fsp_profile().

glk_mappings

const struct speed_mapping glk_mappings[]

static

Initial value:

= {
        { .logical = LP4_SPEED_1600, .fsp_value = 0x4 },
        { .logical = LP4_SPEED_2133, .fsp_value = 0x6 },
        { .logical = LP4_SPEED_2400, .fsp_value = 0x7 },
}

Definition at line 41 of file meminit.c.

glk_profile

const struct fsp_speed_profiles glk_profile

static

Initial value:

= {
        .mappings = glk_mappings,
        .num_mappings = ARRAY_SIZE(glk_mappings),
}

Definition at line 41 of file meminit.c.

Referenced by get_fsp_profile().

memory_size_mib

size_t memory_size_mib

static

Definition at line 10 of file meminit.c.

Referenced by accumulate_channel_memory(), and memory_in_system_in_mib().