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compulab: eeprom: add support for obtaining product name

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Introduce cl_eeprom_get_product_name() for obtaining product name
from the eeprom.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
This commit is contained in:
Nikita Kiryanov 2015-09-06 11:48:37 +03:00 committed by Stefano Babic
parent e93e809f2f
commit 53af877fd2
2 changed files with 36 additions and 0 deletions
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30
board/compulab/common/eeprom.c
View File

@ -9,6 +9,7 @@
#include <common.h>
#include <i2c.h>
#include "eeprom.h"
#ifndef CONFIG_SYS_I2C_EEPROM_ADDR
# define CONFIG_SYS_I2C_EEPROM_ADDR 0x50
@ -25,6 +26,8 @@
#define BOARD_REV_OFFSET 0
#define BOARD_REV_OFFSET_LEGACY 6
#define BOARD_REV_SIZE 2
#define PRODUCT_NAME_OFFSET 128
#define PRODUCT_NAME_SIZE 16
#define MAC_ADDR_OFFSET 4
#define MAC_ADDR_OFFSET_LEGACY 0
@ -151,3 +154,30 @@ u32 cl_eeprom_get_board_rev(uint eeprom_bus)
return board_rev;
};
/*
* Routine: cl_eeprom_get_board_rev
* Description: read system revision from eeprom
*
* @buf: buffer to store the product name
* @eeprom_bus: i2c bus num of the eeprom
*
* @return: 0 on success, < 0 on failure
*/
int cl_eeprom_get_product_name(uchar *buf, uint eeprom_bus)
{
int err;
if (buf == NULL)
return -EINVAL;
err = cl_eeprom_setup(eeprom_bus);
if (err)
return err;
err = cl_eeprom_read(PRODUCT_NAME_OFFSET, buf, PRODUCT_NAME_SIZE);
if (!err) /* Protect ourselves from invalid data (unterminated str) */
buf[PRODUCT_NAME_SIZE - 1] = '\0';
return err;
}

6
board/compulab/common/eeprom.h
View File

@ -9,10 +9,12 @@
#ifndef _EEPROM_
#define _EEPROM_
#include <errno.h>
#ifdef CONFIG_SYS_I2C
int cl_eeprom_read_mac_addr(uchar *buf, uint eeprom_bus);
u32 cl_eeprom_get_board_rev(uint eeprom_bus);
int cl_eeprom_get_product_name(uchar *buf, uint eeprom_bus);
#else
static inline int cl_eeprom_read_mac_addr(uchar *buf, uint eeprom_bus)
{
@ -22,6 +24,10 @@ static inline u32 cl_eeprom_get_board_rev(uint eeprom_bus)
{
return 0;
}
static inline int cl_eeprom_get_product_name(uchar *buf, uint eeprom_bus)
{
return -ENOSYS;
}
#endif
#endif