diff options
| author | Thierry Reding <treding@nvidia.com> | 2019-04-15 11:32:34 +0200 |
|---|---|---|
| committer | Tom Warren <twarren@nvidia.com> | 2019-06-05 09:16:35 -0700 |
| commit | 8317189737a93753f634e0f14d984226b7a2da4c (patch) | |
| tree | b07d0beb64833b9bf153697371c40bd48f4cc2a2 /board/nvidia | |
| parent | a930a727423c6559ccf0b35c833669ad491a3db5 (diff) | |
p2771-0000: Pass Ethernet MAC to the kernel
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>
Diffstat (limited to 'board/nvidia')
| -rw-r--r-- | board/nvidia/p2771-0000/p2771-0000.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/board/nvidia/p2771-0000/p2771-0000.c b/board/nvidia/p2771-0000/p2771-0000.c index 6f88010c18..fe22067f65 100644 --- a/board/nvidia/p2771-0000/p2771-0000.c +++ b/board/nvidia/p2771-0000/p2771-0000.c @@ -4,7 +4,10 @@ */ #include <common.h> +#include <environment.h> #include <i2c.h> +#include <linux/libfdt.h> +#include <asm/arch-tegra/cboot.h> #include "../p2571/max77620_init.h" void pin_mux_mmc(void) @@ -52,3 +55,43 @@ int tegra_pcie_board_init(void) return 0; } #endif + +int ft_board_setup(void *fdt, bd_t *bd) +{ + 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 0; + + debug("ethernet alias found: %s\n", path); + + offset = fdt_path_offset(fdt, path); + if (offset < 0) + return 0; + + 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); + } + } + + return 0; +} |