mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-08 14:14:32 +00:00
aa3c7912cb
Detect eMMC or SD card boot on Odroid-C4/N2 and Khadas VIM3(l) boards and report proper MMC device for the environment loading code. This allows to automatically load and store environment variables on the FAT partition or RAW offset of the MMC device without the need to use different configurations on eMMC and SD card. To use this feature with environment stored on FAT partition, one has to specify an empty device part (i.e. ":1" for the first partition) in CONFIG_ENV_FAT_DEVICE_AND_PART to let the code to set the device to the value returned by mmc_get_env_dev() function. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2020 BayLibre, SAS
|
|
* Author: Neil Armstrong <narmstrong@baylibre.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <env.h>
|
|
#include <init.h>
|
|
#include <net.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/boot.h>
|
|
#include <asm/arch/sm.h>
|
|
#include <asm/arch/eth.h>
|
|
#include <asm/arch/boot.h>
|
|
|
|
#define EFUSE_MAC_OFFSET 20
|
|
#define EFUSE_MAC_SIZE 12
|
|
#define MAC_ADDR_LEN 6
|
|
|
|
int mmc_get_env_dev(void)
|
|
{
|
|
if (meson_get_boot_device() == BOOT_DEVICE_EMMC)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
int misc_init_r(void)
|
|
{
|
|
u8 mac_addr[MAC_ADDR_LEN];
|
|
char efuse_mac_addr[EFUSE_MAC_SIZE], tmp[3];
|
|
ssize_t len;
|
|
|
|
if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG) &&
|
|
meson_get_soc_rev(tmp, sizeof(tmp)) > 0)
|
|
env_set("soc_rev", tmp);
|
|
|
|
meson_eth_init(PHY_INTERFACE_MODE_RGMII, 0);
|
|
|
|
if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
|
|
len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
|
|
efuse_mac_addr, EFUSE_MAC_SIZE);
|
|
if (len != EFUSE_MAC_SIZE)
|
|
return 0;
|
|
|
|
/* MAC is stored in ASCII format, 1bytes = 2characters */
|
|
for (int i = 0; i < 6; i++) {
|
|
tmp[0] = efuse_mac_addr[i * 2];
|
|
tmp[1] = efuse_mac_addr[i * 2 + 1];
|
|
tmp[2] = '\0';
|
|
mac_addr[i] = simple_strtoul(tmp, NULL, 16);
|
|
}
|
|
|
|
if (is_valid_ethaddr(mac_addr))
|
|
eth_env_set_enetaddr("ethaddr", mac_addr);
|
|
else
|
|
meson_generate_serial_ethaddr();
|
|
}
|
|
|
|
return 0;
|
|
}
|