diff options
Diffstat (limited to 'arch/arm/boards/zii-common/board.c')
| -rw-r--r-- | arch/arm/boards/zii-common/board.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/boards/zii-common/board.c b/arch/arm/boards/zii-common/board.c index 20ec64d2d4..9a9564e6d1 100644 --- a/arch/arm/boards/zii-common/board.c +++ b/arch/arm/boards/zii-common/board.c @@ -16,6 +16,64 @@ #include <globalvar.h> #include <init.h> #include <fs.h> +#include <net.h> +#include <linux/nvmem-consumer.h> + +static int rdu_eth_register_ethaddr(struct device_node *np) +{ + u8 mac[ETH_ALEN]; + u8 *data; + int i; + + data = nvmem_cell_get_and_read(np, "mac-address", ETH_ALEN); + if (IS_ERR(data)) + return PTR_ERR(data); + /* + * EEPROM stores MAC address in reverse (to what we expect it + * to be) byte order. + */ + for (i = 0; i < ETH_ALEN; i++) + mac[i] = data[ETH_ALEN - i - 1]; + + free(data); + + of_eth_register_ethaddr(np, mac); + + return 0; +} + +static int rdu_ethernet_init(void) +{ + static const char * const aliases[] = { "ethernet0", "ethernet1" }; + struct device_node *np, *root; + int i, ret; + + if (!of_machine_is_compatible("zii,imx6q-zii-rdu2") && + !of_machine_is_compatible("zii,imx6qp-zii-rdu2") && + !of_machine_is_compatible("zii,imx8mq-ultra")) + return 0; + + root = of_get_root_node(); + + for (i = 0; i < ARRAY_SIZE(aliases); i++) { + const char *alias = aliases[i]; + + np = of_find_node_by_alias(root, alias); + if (!np) { + pr_warn("Failed to find %s\n", alias); + continue; + } + + ret = rdu_eth_register_ethaddr(np); + if (ret) { + pr_warn("Failed to register MAC for %s\n", alias); + continue; + } + } + + return 0; +} +late_initcall(rdu_ethernet_init); static int rdu_networkconfig(void) { |