diff --git a/boards/uniboard2b/designs/unb2b_minimal/unb2b_minimal.fpga.yaml b/boards/uniboard2b/designs/unb2b_minimal/unb2b_minimal.fpga.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..c3905a7398b64ae70f6e3e4518d3140c3d97b900
--- /dev/null
+++ b/boards/uniboard2b/designs/unb2b_minimal/unb2b_minimal.fpga.yaml
@@ -0,0 +1,48 @@
+schema_name : args
+schema_version: 1.0
+schema_type : fpga
+
+hdl_library_name: unb2b_minimal
+fpga_name : unb2b_minimal
+fpga_description: "unb2b_minimal system"
+
+peripherals:
+ - peripheral_name: unb2b_board/system
+ slave_port_names:
+ - pio_system_info
+ - peripheral_name: unb2b_board/rom_system
+ slave_port_names:
+ - rom_system_info
+ - peripheral_name: unb2b_board/ctrl
+ slave_port_names:
+ - pio_wdi
+ - peripheral_name: unb2b_board/wdi
+ slave_port_names:
+ - reg_wdi
+ - peripheral_name: eth/eth1g
+ slave_port_names:
+ - avs_eth_0_tse
+ - avs_eth_0_reg
+ - avs_eth_0_ram
+ - peripheral_name: ppsh/ppsh
+ slave_port_names:
+ - pio_pps
+ - peripheral_name: epcs/epcs
+ slave_port_names:
+ - reg_epcs
+ - reg_dpmm_ctrl
+ - reg_dpmm_data
+ - reg_mmdp_ctrl
+ - reg_mmdp_data
+ parameter_overrides:
+ - { name : g_sim_flash_model, value: FALSE }
+ - peripheral_name: remu/remu
+ slave_port_names:
+ - reg_remu
+ - peripheral_name: unb2b_board/sens
+ slave_port_names:
+ - reg_unb_sens
+ parameter_overrides:
+ - { name : g_sim, value: FALSE }
+ - { name : g_clk_freq, value: 125E6 }
+ - { name : g_temp_high, value: 85 }
diff --git a/boards/uniboard2b/libraries/unb2b_board/unb2b_board.peripheral.yaml b/boards/uniboard2b/libraries/unb2b_board/unb2b_board.peripheral.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..e86d093d5e6320cf51252e5468d965e3bb2c7e94
--- /dev/null
+++ b/boards/uniboard2b/libraries/unb2b_board/unb2b_board.peripheral.yaml
@@ -0,0 +1,159 @@
+schema_name : args
+schema_version: 1.0
+schema_type : peripheral
+
+hdl_library_name : unb2b_board
+hdl_library_description: " This is the description for the unb2b_board package "
+
+# <peripheral_group>_<peripheral_name>_<slave_name>_<slave_type>
+
+peripherals:
+ - peripheral_name: rom_system
+ slave_ports:
+ # rom_system_info
+ - slave_name : info
+ slave_type : REG
+ fields:
+ - - field_name : info
+ access_mode : RO
+ address_offset: 0x0
+ number_of_fields: 1024
+ field_description: |
+ "address place for rom_system_info"
+ slave_description: " rom_info "
+
+ peripheral_description: |
+ " settings for rom_system_info register "
+
+ - peripheral_name: system
+ slave_ports:
+ # reg_system_info
+ - slave_name : info
+ slave_type : REG
+ fields:
+ - - field_name : info
+ access_mode : RO
+ address_offset: 0x0
+ number_of_fields: 32
+ field_description: |
+ "address place for reg_system_info"
+ slave_description: " reg_info "
+
+ peripheral_description: |
+ " settings for reg_system_info register "
+
+ # peripheral, unb2b_board_wdi_reg
+ - peripheral_name: ctrl
+
+ slave_ports:
+ # actual hdl name: unb2b_board_wdi_reg
+ - slave_name : pio_wdi
+ slave_type : REG
+ fields:
+ - - field_name : nios_reset
+ width : 32
+ access_mode : WO
+ address_offset : 0x0
+ number_of_fields: 1
+ field_description: " Reset done by nios "
+
+ slave_description: "Reset register, for nios "
+
+ peripheral_description: " "
+
+ # peripheral, unb2b_board_wdi_reg
+ - peripheral_name: wdi
+
+ slave_ports:
+ # actual hdl name: unb2b_board_wdi_reg
+ - slave_name : wdi
+ slave_type : REG
+ fields:
+ - - field_name : reset_word
+ access_mode : WO
+ address_offset: 0x0
+ field_description: " Only the value 0xB007FAC7 'Boot factory' will result in a reset "
+
+ slave_description: "Reset register, if the right value is provided the factory image will be reloaded "
+
+ peripheral_description: " "
+
+ # periheral, unb2b_board_sens
+ - peripheral_name: sens
+
+ parameters:
+ - { name: g_sim, value: FALSE }
+ - { name: g_clk_freq, value: c_unb2b_board_mm_clk_freq_125M }
+ - { name: g_temp_high, value: 85 }
+
+ slave_ports:
+ # actual hdl name: reg_unb2b_sens
+ - slave_name : sens
+ slave_type : REG
+ fields:
+ - - field_name : sens_data
+ width : 8
+ access_mode : RO
+ address_offset: 0x0
+ number_of_fields: 4
+ field_description: |
+ " data array with sens data
+ 0x0 = fpga temperature in degrees (two's complement)
+ 0x1 = eth_temp temperature in degrees (two's complement)
+ 0x2 = hot_swap_v_sens
+ 0x3 = hot_swap_v_source"
+
+ - - field_name : sens_err
+ width : 1
+ access_mode : RO
+ address_offset: 0x10
+ radix : unsigned
+ field_description: ""
+
+ - - field_name : temp_high
+ width : 7
+ address_offset: 0x14
+ reset_value : g_temp_high
+ software_value: g_temp_high
+ field_description: ""
+
+ slave_description: " "
+
+ peripheral_description: |
+ "
+ +-----------------------------------------------------------------------------+
+ |31 (byte3) 24|23 (byte2) 16|15 (byte1) 8|7 (byte0) 0| wi |
+ |-----------------------------------------------------------------------|-----|
+ | xxx fpga_temp = sens_data[0][7:0]| 0 |
+ |-----------------------------------------------------------------------|-----|
+ | xxx eth_temp = sens_data[1][7:0]| 1 |
+ |-----------------------------------------------------------------------|-----|
+ | xxx hot_swap_v_sense = sens_data[2][7:0]| 2 |
+ |-----------------------------------------------------------------------|-----|
+ | xxx hot_swap_v_source = sens_data[3][7:0]| 3 |
+ |-----------------------------------------------------------------------|-----|
+ | xxx sens_err[0]| 4 |
+ |-----------------------------------------------------------------------|-----|
+ | xxx temp_high[6:0]| 5 |
+ +-----------------------------------------------------------------------------+
+ * The fpga_temp and eth_temp are in degrees (two's complement)
+ * The hot swap voltages depend on:
+ . From i2c_dev_ltc4260_pkg:
+ LTC4260_V_UNIT_SENSE = 0.0003 -- 0.3 mV over Rs for current sense
+ LTC4260_V_UNIT_SOURCE = 0.4 -- 400 mV supply voltage (e.g +48 V)
+ LTC4260_V_UNIT_ADIN = 0.01 -- 10 mV ADC
+
+ . From UniBoard unb_sensors.h:
+ SENS_HOT_SWAP_R_SENSE = 0.005 -- R sense on UniBoard is 5 mOhm (~= 10 mOhm // 10 mOhm)
+ SENS_HOT_SWAP_I_UNIT_SENSE = LTC4260_V_UNIT_SENSE / SENS_HOT_SWAP_R_SENSE
+ SENS_HOT_SWAP_V_UNIT_SOURCE = LTC4260_V_UNIT_SOURCE
+
+ ==>
+ Via all FN and BN:
+ 0 = FPGA temperature = TInt8(fpga_temp)
+ Only via BN3:
+ 1 = UniBoard ETH PHY temperature = TInt8(eth_temp)
+ 2 = UniBoard hot swap supply current = hot_swap_v_sense * SENS_HOT_SWAP_I_UNIT_SENSE
+ 3 = UniBoard hot swap supply voltage = hot_swap_v_source * SENS_HOT_SWAP_V_UNIT_SOURCE
+ 4 = I2C error status for BN3 sensors access only, 0 = ok"
+