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/*
* Copyright (C) 2016 ISEE 2007 SL - http://www.isee.biz
*
* EEPROM support source file for IGEP0046 board
*
* Author: Jose Miguel Sanchez Sanabria <jsanabria@iseebcn.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <i2c.h>
#include <asm/arch/sys_proto.h>
int eeprom_write_setup (uint16_t s_addr, const char* data, u32 size)
{
u32 i;
u32 remain = size % 32;
u32 blocks = size / 32;
for (i=0; i < blocks; i++){
if(i2c_write(CONFIG_SYS_I2C_EEPROM_ADDR, s_addr + (i*32), 2, (uint8_t*) data + (i*32), 32)){
return -1;
}
mdelay(10);
}
if(remain > 0){
if(i2c_write(CONFIG_SYS_I2C_EEPROM_ADDR, s_addr + (i*32), 2, (uint8_t*) data + (i*32), remain))
return -1;
else
mdelay(10);
}
return 0;
}
int eeprom_read_setup (uint16_t s_addr, char* data, u32 size)
{
u32 i;
u32 remain = size % 32;
u32 blocks = size / 32;
for (i=0; i < blocks; i++){
if(i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, s_addr + (i*32), 2, (uint8_t*) data + (i*32), 32)){
return -1;
}
}
if(remain > 0)
if(i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, s_addr + (i*32), 2, (uint8_t*) data + (i*32), remain))
return -1;
return 0;
}
int check_eeprom (void)
{
i2c_set_bus_num(CONFIG_SYS_I2C_EEPROM_BUS);
/* Check if baseboard eeprom is available */
if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
printf("Could not probe the EEPROM at 0x%x\n",
CONFIG_SYS_I2C_EEPROM_ADDR);
return -1;
}
return 0;
}
unsigned int parse_char(char c)
{
if ('0' <= c && c <= '9') return c - '0';
if ('a' <= c && c <= 'f') return 10 + c - 'a';
if ('A' <= c && c <= 'F') return 10 + c - 'A';
return 0;
}
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