romstage.c File Reference

#include <string.h>
#include <soc/romstage.h>
#include <soc/gpio_apl.h>
#include <soc/meminit.h>
#include <fsp/api.h>
#include <FspmUpd.h>
#include <console/console.h>
#include <gpio.h>

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Functions
static uint8_t	get_memory_skuid (void)
void	mainboard_memory_init_params (FSPM_UPD *memupd)
void	mainboard_save_dimm_info (void)

Variables
static const uint8_t	memory_skuid_pads [] = { GPIO_214, GPIO_215 }
static const struct lpddr4_sku	skus []
static const struct lpddr4_cfg	lp4cfg
static const uint8_t	ch0_bit_swizzling []
static const uint8_t	ch1_bit_swizzling []
static const uint8_t	ch2_bit_swizzling []
static const uint8_t	ch3_bit_swizzling []

Function Documentation

get_memory_skuid()

static uint8_t get_memory_skuid ( void  )

static

Definition at line 88 of file romstage.c.

References ARRAY_SIZE, gpio_get(), and memory_skuid_pads.

Referenced by mainboard_memory_init_params(), and mainboard_save_dimm_info().

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mainboard_memory_init_params()

void mainboard_memory_init_params

(

FSPM_UPD *

memupd

)

Definition at line 99 of file romstage.c.

References ARRAY_SIZE, BIOS_DEBUG, BIOS_INFO, ch0_bit_swizzling, ch1_bit_swizzling, ch2_bit_swizzling, ch3_bit_swizzling, config, FSP_M_CONFIG, get_memory_skuid(), gpio_configure_pads(), gpio_table, memcpy(), and printk.

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mainboard_save_dimm_info()

void mainboard_save_dimm_info

(

void

)

Definition at line 192 of file romstage.c.

References get_memory_skuid(), lp4cfg, and save_lpddr4_dimm_info().

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Variable Documentation

ch0_bit_swizzling

const uint8_t ch0_bit_swizzling[]

static

Initial value:

= {
        0x0D, 0x0A, 0x08, 0x0B, 0x0C, 0x0F, 0x0E, 0x09,
        0x06, 0x00, 0x03, 0x04, 0x07, 0x01, 0x05, 0x02,
        0x1C, 0x1A, 0x19, 0x1B, 0x1D, 0x1F, 0x1E, 0x18,
        0x10, 0x17, 0x15, 0x16, 0x14, 0x12, 0x13, 0x11
}

Definition at line 53 of file romstage.c.

Referenced by mainboard_memory_init_params().

ch1_bit_swizzling

const uint8_t ch1_bit_swizzling[]

static

Initial value:

= {
        0x00, 0x07, 0x04, 0x05, 0x06, 0x02, 0x03, 0x01,
        0x08, 0x0F, 0x0D, 0x0B, 0x0A, 0x09, 0x0E, 0x0C,
        0x17, 0x11, 0x13, 0x12, 0x14, 0x15, 0x16, 0x10,
        0x1C, 0x1A, 0x1D, 0x1F, 0x18, 0x19, 0x1E, 0x1B
}

Definition at line 60 of file romstage.c.

Referenced by mainboard_memory_init_params().

ch2_bit_swizzling

const uint8_t ch2_bit_swizzling[]

static

Initial value:

= {
        0x0D, 0x08, 0x0B, 0x0E, 0x0C, 0x0F, 0x09, 0x0A,
        0x04, 0x07, 0x01, 0x06, 0x02, 0x03, 0x00, 0x05,
        0x18, 0x19, 0x1C, 0x1A, 0x1D, 0x1E, 0x1F, 0x1B,
        0x11, 0x13, 0x15, 0x10, 0x16, 0x12, 0x17, 0x14
}

Definition at line 67 of file romstage.c.

Referenced by mainboard_memory_init_params().

ch3_bit_swizzling

const uint8_t ch3_bit_swizzling[]

static

Initial value:

= {
        0x00, 0x05, 0x04, 0x07, 0x03, 0x02, 0x06, 0x01,
        0x0A, 0x0B, 0x08, 0x09, 0x0C, 0x0E, 0x0D, 0x0F,
        0x12, 0x16, 0x14, 0x13, 0x17, 0x11, 0x15, 0x10,
        0x19, 0x1F, 0x1D, 0x1B, 0x1E, 0x18, 0x1C, 0x1A
}

Definition at line 74 of file romstage.c.

Referenced by mainboard_memory_init_params().

lp4cfg

const struct lpddr4_cfg lp4cfg

static

Initial value:

= {
        .skus = skus,
        .num_skus = ARRAY_SIZE(skus),
}

Definition at line 18 of file romstage.c.

Referenced by mainboard_save_dimm_info().

memory_skuid_pads

const uint8_t memory_skuid_pads[] = { GPIO_214, GPIO_215 }

static

Definition at line 18 of file romstage.c.

Referenced by get_memory_skuid().

skus

const struct lpddr4_sku skus[]

static

Initial value:

= {
        
        [0] = {
                .speed = LP4_SPEED_2400,
                .ch0_rank_density = LP4_8Gb_DENSITY,
                .ch1_rank_density = 0,
                .ch0_dual_rank = 0,
                .ch1_dual_rank = 0,
                .part_num = "K4F8E304HB-MGCJ",
        },
        [1] = {
                .speed = LP4_SPEED_2400,
                .ch0_rank_density = LP4_8Gb_DENSITY,
                .ch1_rank_density = LP4_8Gb_DENSITY,
                .ch0_dual_rank = 0,
                .ch1_dual_rank = 0,
                .part_num = "K4F8E304HB-MGCJ",
        },
        [2] = {
                .speed = LP4_SPEED_2400,
                .ch0_rank_density = LP4_16Gb_DENSITY,
                .ch1_rank_density = LP4_16Gb_DENSITY,
                .ch0_dual_rank = 1,
                .ch1_dual_rank = 1,
                .part_num = "K4F6E304HB-MGCJ",
        },
}

Definition at line 18 of file romstage.c.