Intel EMIF FPGA IP DTS / DTB error.

Hello,

Thanks for the link. Yes, also followed the Rocketboards procedure.

Following the suggested link above gave the same results as before.

Please see screen output below.

Thanks,

--barny

> embedded_command_shell.sh

------------------------------------------------

Intel FPGA Embedded Command Shell

Version 17.1 [Build 590]

------------------------------------------------

> sopc2dts -i ghrd_10as066n2.sopcinfo -o ghrd_10as066n2.dts \

-b ghrd_10as066n2_board_info.xml \

-b hps_a10_common_board_info.xml \

-b hps_a10_devkit_board_info.xml \

--bridge-removal all --clocks

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

Component emif_0 of class altera_emif is unknown

Component emif_0_arch of class altera_emif_arch_nf is unknown

Component emif_0_ecc_core of class altera_emif_ecc is unknown

Component emif_0_col_if of class altera_ip_col_if is unknown

Component emif_0_col_if_colmaster of class alt_mem_if_jtag_master is unknown

Component emif_0_cal_slave_component of class altera_emif_cal_slave_nf is unknown

> dtc -I dts -O dtb -o socfpga_arria10_socdk_sdmmc.dtb ghrd_10as066n2.dts

ERROR (phandle_references): Reference to non-existent node or label "emif_0_arch"

ERROR: Input tree has errors, aborting (use -f to force output)

Hi Sir,

For the design, it already consist of the DDR4 which is HPS DDR4. So, I believe the emif_0 that you added is the FPGA EMIF.

Is this FPGA EMIF will used by your HPS system? If it is not use, then you can just delete those component emif_0* from the DTS file.

Hello,

Thank you for the reply.

The project has two EMIFs:

HPS-EMIF 1GB: seen and used by Linux

FPGA-EMIF 2GB: not used by Linux, used by DMA engines for buffer.

- 2GB memory space needs to be allocated by Linux (Malloc(?)).

- h2f_axi_master (0xC000_0000) base address has < ~1GB range only to map

- Can use address spanner for SW checking of buffer states

Thanks,

Hi Sir,

So emif_0 is the FPGA or HPS EMIF? If it is FPGA EMIF then you can just open the DTS in editor and delete the emif_0 line from there.

Hello,

Thank you for the reply. Yes, emif_0 is FPGA EMIF.

If emif_0 is deleted, how will Linux see the resource? How can Linux allocate the 2GB space?

Thanks,

Hello,

Sorry, need to correct my earlier statement.

HPS system will have access to FPGA EMIF. This is for the Linux drivers to allocate FPGA EMIF memory space for the DMA engines and to check the contents of the data buffer.

Main Linux OS will still run from HPS EMIF.

Thank you.

looks like the system not recognize any driver for emif. But seem like you only need to access the FPGA EMIF from HPS as a flat memory, maybe you can try to modify the DTS to flat memory as below. See if you still can access the address from HPS.

// emif_0_ecc_core: unknown@0x100000040 {

// compatible = "unknown,unknown-16.1";

// reg = <0x00000001 0x00000040 0x40000000>;

// clocks = <&emif_0_arch 0>;

// }; //end unknown@0x100000040 (emif_0_ecc_core)

memory {

device_type = "memory";

reg = <0xc0000000 0x20000000>;

};