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board: atmel: Create board/$(VENDOR)/common folder

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Create board/$(VENDOR)/common folder to accommodate the common code
shared by other atmel boards, now put the code to set ethernet mac
address from eeprom, which uses the i2c eeprom driver.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Wenyou Yang 2017-09-01 16:26:16 +08:00 committed by Tom Rini
parent 08318317af
commit d9b23e26f0
4 changed files with 61 additions and 0 deletions
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2
arch/arm/mach-at91/include/mach/at91_common.h
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@ -36,4 +36,6 @@ void matrix_init(void);
void redirect_int_from_saic_to_aic(void);
void configure_2nd_sram_as_l2_cache(void);
int at91_set_ethaddr(int offset);
#endif /* AT91_COMMON_H */

11
board/atmel/common/Makefile Normal file
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@ -0,0 +1,11 @@
#
# Copyright (C) 2017 Microchip
# Wenyou Yang <wenyou.yang@microchip.com>
#
# SPDX-License-Identifier: GPL-2.0+
#
obj-y += board.o
ifndef CONFIG_SPL_BUILD
obj-$(CONFIG_I2C_EEPROM) += mac_eeprom.o
endif

12
board/atmel/common/board.c Normal file
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@ -0,0 +1,12 @@
/*
* Copyright (C) 2017 Microchip
* Wenyou Yang <wenyou.yang@microchip.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
void dummy(void)
{
}

36
board/atmel/common/mac_eeprom.c Normal file
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@ -0,0 +1,36 @@
/*
* Copyright (C) 2017 Microchip
* Wenyou Yang <wenyou.yang@microchip.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <i2c_eeprom.h>
#include <netdev.h>
int at91_set_ethaddr(int offset)
{
const int ETH_ADDR_LEN = 6;
unsigned char ethaddr[ETH_ADDR_LEN];
const char *ETHADDR_NAME = "ethaddr";
struct udevice *dev;
int ret;
if (env_get(ETHADDR_NAME))
return 0;
ret = uclass_first_device_err(UCLASS_I2C_EEPROM, &dev);
if (ret)
return ret;
ret = i2c_eeprom_read(dev, offset, ethaddr, 6);
if (ret)
return ret;
if (is_valid_ethaddr(ethaddr))
eth_env_set_enetaddr(ETHADDR_NAME, ethaddr);
return 0;
}