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p2371-2180: Pass Ethernet MAC to the kernel

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Pass the ethernet MAC address to the kernel upon boot. This passes both
the local-mac-address property (as passed to U-Boot from cboot) and the
currently set MAC address via the mac-address property. The latter will
only be set if it is different from the address that was already passed
via the local-mac-address property.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Thierry Reding 2019-04-15 11:32:33 +02:00 committed by Tom Warren
parent 74a50ac2a4
commit a930a72742
2 changed files with 51 additions and 0 deletions
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50
board/nvidia/p2371-2180/p2371-2180.c
View File

@ -5,9 +5,12 @@
*/
#include <common.h>
#include <environment.h>
#include <i2c.h>
#include <linux/libfdt.h>
#include <asm/arch/gpio.h>
#include <asm/arch/pinmux.h>
#include <asm/arch-tegra/cboot.h>
#include "../p2571/max77620_init.h"
#include "pinmux-config-p2371-2180.h"
@ -94,3 +97,50 @@ int tegra_pcie_board_init(void)
return 0;
}
#endif /* PCI */
static void ft_mac_address_setup(void *fdt)
{
const void *cboot_fdt = (const void *)cboot_boot_x0;
uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
const char *path;
int offset, err;
err = cboot_get_ethaddr(cboot_fdt, local_mac);
if (err < 0)
memset(local_mac, 0, ETH_ALEN);
path = fdt_get_alias(fdt, "ethernet");
if (!path)
return;
debug("ethernet alias found: %s\n", path);
offset = fdt_path_offset(fdt, path);
if (offset < 0) {
printf("ethernet alias points to absent node %s\n", path);
return;
}
if (is_valid_ethaddr(local_mac)) {
err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
ETH_ALEN);
if (!err)
debug("Local MAC address set: %pM\n", local_mac);
}
if (eth_env_get_enetaddr("ethaddr", mac)) {
if (memcmp(local_mac, mac, ETH_ALEN) != 0) {
err = fdt_setprop(fdt, offset, "mac-address", mac,
ETH_ALEN);
if (!err)
debug("MAC address set: %pM\n", mac);
}
}
}
int ft_board_setup(void *fdt, bd_t *bd)
{
ft_mac_address_setup(fdt);
return 0;
}

1
configs/p2371-2180_defconfig
View File

@ -5,6 +5,7 @@ CONFIG_NR_DRAM_BANKS=2
CONFIG_TEGRA210=y
CONFIG_TARGET_P2371_2180=y
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_OF_BOARD_SETUP=y
CONFIG_CONSOLE_MUX=y
CONFIG_SYS_STDIO_DEREGISTER=y
CONFIG_SYS_PROMPT="Tegra210 (P2371-2180) # "