Add support for on board eeprom with programmed MAC for using in u-boot to have uniq address for every board. Most of the time uniq MAC address is on a label on the board. If address is not programmed use these command to program it.
On zcu102: ZynqMP> mm.b 0 00000000: 00 ? 00 00000001: a0 ? 0a 00000002: 35 ? 35 00000003: 02 ? 02 00000004: 00 ? ef 00000005: 00 ? 67 00000006: 00 ? q i2c dev 5 i2c write 0 54 20 6 i2c md 54 20
Signed-off-by: Michal Simek michal.simek@xilinx.com ---
board/xilinx/zynqmp/zynqmp.c | 17 +++++++++++++++++ include/configs/xilinx_zynqmp_zcu102.h | 6 ++++++ 2 files changed, 23 insertions(+)
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c index 132d724fbdf8..4623cd49e9c7 100644 --- a/board/xilinx/zynqmp/zynqmp.c +++ b/board/xilinx/zynqmp/zynqmp.c @@ -15,6 +15,7 @@ #include <asm/io.h> #include <usb.h> #include <dwc3-uboot.h> +#include <i2c.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -50,6 +51,22 @@ int board_early_init_r(void) return 0; }
+int zynq_board_read_rom_ethaddr(unsigned char *ethaddr) +{ +#if defined(CONFIG_ZYNQ_GEM_EEPROM_ADDR) && \ + defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET) && \ + defined(CONFIG_ZYNQ_EEPROM_BUS) + i2c_set_bus_num(CONFIG_ZYNQ_EEPROM_BUS); + + if (eeprom_read(CONFIG_ZYNQ_GEM_EEPROM_ADDR, + CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET, + ethaddr, 6)) + printf("I2C EEPROM MAC address read failed\n"); +#endif + + return 0; +} + #if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE) /* * fdt_get_reg - Fill buffer by information from DT diff --git a/include/configs/xilinx_zynqmp_zcu102.h b/include/configs/xilinx_zynqmp_zcu102.h index 30db2e453246..81079fe7d8b2 100644 --- a/include/configs/xilinx_zynqmp_zcu102.h +++ b/include/configs/xilinx_zynqmp_zcu102.h @@ -48,6 +48,12 @@
#define CONFIG_IDENT_STRING " Xilinx ZynqMP ZCU102"
+#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1 +#define CONFIG_CMD_EEPROM +#define CONFIG_ZYNQ_EEPROM_BUS 5 +#define CONFIG_ZYNQ_GEM_EEPROM_ADDR 0x54 +#define CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET 0x20 + #define CONFIG_KERNEL_FDT_OFST_SIZE \ "kernel_offset=0x180000\0" \ "fdt_offset=0x100000\0" \