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mb/prodrive/hermes: Drop EEPROM address function parameters 

Only one EEPROM is used to store the board settings, and its I2C address
is constant. Thus, there's no need to pass its address as a parameter.

In addition, reduce the scope of the `I2C_ADDR_EEPROM` definition, since
using it outside of eeprom.c would bypass the API's abstraction layer.

Change-Id: I958304e6ed6df05af923139d44ff4fd1de204738
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46565
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
This commit is contained in:
Angel Pons 2020-12-17 11:51:36 +01:00 committed by Hung-Te Lin
parent 707e03d8b9
commit f651022df3
4 changed files with 12 additions and 14 deletions
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11
src/mainboard/prodrive/hermes/eeprom.c
View File

@ -6,15 +6,17 @@
#include <soc/intel/common/block/smbus/smbuslib.h>
#include "variants/baseboard/include/eeprom.h"
#define I2C_ADDR_EEPROM 0x57
/*
* Check Signature in EEPROM (M24C32-FMN6TP)
* If signature is there we assume that that the content is valid
*/
int check_signature(u8 addr, const size_t offset, const uint64_t signature)
int check_signature(const size_t offset, const uint64_t signature)
{
u8 blob[8] = {0};
if (!read_write_config(addr, blob, offset, 0, ARRAY_SIZE(blob))) {
if (!read_write_config(blob, offset, 0, ARRAY_SIZE(blob))) {
/* Check signature */
if (*(uint64_t *)blob == signature) {
printk(BIOS_DEBUG, "CFG EEPROM: Signature valid.\n");
@ -27,8 +29,7 @@ int check_signature(u8 addr, const size_t offset, const uint64_t signature)
}
/* Read data from offset and write it to offset in UPD */
bool read_write_config(u8 addr, void *blob, size_t read_offset, size_t write_offset,
size_t size)
bool read_write_config(void *blob, size_t read_offset, size_t write_offset, size_t size)
{
int ret = 0;
@ -42,7 +43,7 @@ bool read_write_config(u8 addr, void *blob, size_t read_offset, size_t write_off
for (size_t i = 0; i < size; i = i + 2) {
u8 tmp[2] = {0};
ret = do_smbus_process_call(SMBUS_IO_BASE, addr, 0,
ret = do_smbus_process_call(SMBUS_IO_BASE, I2C_ADDR_EEPROM, 0,
swab16(read_offset + i), (uint16_t *)&tmp[0]);
if (ret < 0)
break;

4
src/mainboard/prodrive/hermes/ramstage.c
View File

@ -19,13 +19,13 @@ void mainboard_silicon_init_params(FSPS_UPD *supd)
params->SataLedEnable = 1;
/* Overwrite params */
if (!check_signature(I2C_ADDR_EEPROM, EEPROM_OFFSET_FSP_SIGNATURE, FSP_UPD_SIGNATURE))
if (!check_signature(EEPROM_OFFSET_FSP_SIGNATURE, FSP_UPD_SIGNATURE))
return;
for (u8 i = 0; i <= ARRAY_SIZE(parmas_list); i++) {
if (ARRAY_SIZE(parmas_list) == 0)
break;
read_write_config(I2C_ADDR_EEPROM, params, EEPROM_OFFSET_FSP_CONFIG +
read_write_config(params, EEPROM_OFFSET_FSP_CONFIG +
parmas_list[i].offset,
EEPROM_OFFSET_FSP_CONFIG + parmas_list[i].offset,
parmas_list[i].size);

4
src/mainboard/prodrive/hermes/romstage.c
View File

@ -19,11 +19,11 @@ void mainboard_memory_init_params(FSPM_UPD *memupd)
cannonlake_memcfg_init(&memupd->FspmConfig, variant_memcfg_config());
/* Overwrite memupd */
if (!check_signature(I2C_ADDR_EEPROM, EEPROM_OFFSET_FSP_SIGNATURE, FSP_UPD_SIGNATURE))
if (!check_signature(EEPROM_OFFSET_FSP_SIGNATURE, FSP_UPD_SIGNATURE))
return;
for (size_t i = 0; i < ARRAY_SIZE(parmas_list); i++) {
read_write_config(I2C_ADDR_EEPROM, memupd, EEPROM_OFFSET_FSP_CONFIG +
read_write_config(memupd, EEPROM_OFFSET_FSP_CONFIG +
parmas_list[i].offset,
EEPROM_OFFSET_FSP_CONFIG + parmas_list[i].offset,
parmas_list[i].size);

7
src/mainboard/prodrive/hermes/variants/baseboard/include/eeprom.h
View File

@ -2,8 +2,6 @@
#include <soc/ramstage.h>
#define I2C_ADDR_EEPROM 0x57
#if ENV_ROMSTAGE
#define FSP_UPD_SIGNATURE FSPM_UPD_SIGNATURE
#define EEPROM_OFFSET_FSP_SIGNATURE 0
@ -25,6 +23,5 @@ typedef struct {
size_t size;
} fsp_params;
bool read_write_config(u8 addr, void *blob, size_t read_offset, size_t write_offset,
size_t size);
int check_signature(u8 addr, const size_t offset, const uint64_t signature);
bool read_write_config(void *blob, size_t read_offset, size_t write_offset, size_t size);
int check_signature(const size_t offset, const uint64_t signature);