diff options
| author | Michal Simek <michal.simek@xilinx.com> | 2019-01-21 16:29:07 +0100 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2019-02-14 14:31:09 +0100 |
| commit | 829e8c73dd75eb49c00a6916963ec7b0b1a771c5 (patch) | |
| tree | 65ed0e35b28810f8778ffa6bc63f1b433ec11520 /board/xilinx/common/board.c | |
| parent | 9755e3db8b1223699954146dfb171df75ec89ab3 (diff) | |
xilinx: common: Add support for DM_I2C zynq_board_read_rom_ethaddr()
It is much easier to point to eeprom which stores information like MAC
address directly via DT. eeprom which contains this information is
pointed by /chosen/xlnx,eeprom parameter.
For example:
chosen {
bootargs = "earlycon";
stdout-path = "serial0:115200n8";
+ xlnx,eeprom = &eeprom;
};
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'board/xilinx/common/board.c')
| -rw-r--r-- | board/xilinx/common/board.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c index 7e813d8564..b14f530c72 100644 --- a/board/xilinx/common/board.c +++ b/board/xilinx/common/board.c @@ -8,6 +8,7 @@ #include <dm/uclass.h> #include <i2c.h> +#if !defined(CONFIG_DM_I2C) int zynq_board_read_rom_ethaddr(unsigned char *ethaddr) { #if defined(CONFIG_ZYNQ_GEM_EEPROM_ADDR) && \ @@ -23,3 +24,34 @@ int zynq_board_read_rom_ethaddr(unsigned char *ethaddr) return 0; } + +#else +int zynq_board_read_rom_ethaddr(unsigned char *ethaddr) +{ + int ret = -EINVAL; + +#if defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET) + struct udevice *dev; + ofnode eeprom; + + eeprom = ofnode_get_chosen_node("xlnx,eeprom"); + if (!ofnode_valid(eeprom)) + return -ENODEV; + + debug("%s: Path to EEPROM %s\n", __func__, + ofnode_get_chosen_prop("xlnx,eeprom")); + + ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev); + if (ret) + return ret; + + ret = dm_i2c_read(dev, CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET, ethaddr, 6); + if (ret) + debug("%s: I2C EEPROM MAC address read failed\n", __func__); + else + debug("%s: I2C EEPROM MAC %pM\n", __func__, ethaddr); +#endif + + return ret; +} +#endif |