Hi,
I have developed a cutom board with 66AK2G12ABYT100 and I am working on the porting of u-boot and kernel.
Before my board was finished, I have already built the u-boot and kernel using k2g-evm and k2g-ice evaluation board and in both case I am able to boot up Linux operating system correctly using Processor SDK Linux 06_01_00_08.
In order to execute the porting I am following the step described in Processor SDK Linux 06_03_00_106 chapter 6.3.1.2.1: "Creating an initial baseline by cloning and flattening TI EVM support". I am sure to execute these steps precisely but, when I do the u-boot build, several erros appears:
CC net/nfs.o CC net/ping.o CC net/tftp.o LD net/built-in.o CC examples/standalone/stubs.o LD examples/standalone/libstubs.o CC examples/standalone/hello_world.o LD examples/standalone/hello_world OBJCOPY examples/standalone/hello_world.srec OBJCOPY examples/standalone/hello_world.bin LDS u-boot.lds LD u-boot /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: arch/arm/cpu/armv7/built-in.o: in function `timer_init': /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../arch/arm/cpu/armv7/arch_timer.c:30: undefined reference to `get_external_clk' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: arch/arm/mach-keystone/built-in.o: in function `pll_freq_get': /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../arch/arm/mach-keystone/clock.c:304: undefined reference to `get_external_clk' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../arch/arm/mach-keystone/clock.c:308: undefined reference to `get_external_clk' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../arch/arm/mach-keystone/clock.c:312: undefined reference to `get_external_clk' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../arch/arm/mach-keystone/clock.c:316: undefined reference to `get_external_clk' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: arch/arm/mach-keystone/built-in.o:/home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../arch/arm/mach-keystone/clock.c:320: more undefined references to `get_external_clk' follow /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: arch/arm/mach-keystone/built-in.o: in function `bypass_main_pll': /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../arch/arm/mach-keystone/clock.c:57: undefined reference to `divn_val' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: arch/arm/mach-keystone/built-in.o: in function `do_mon_install': /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../arch/arm/mach-keystone/cmd_mon.c:26: undefined reference to `get_external_clk' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: board/hitachi/k2g_hpc/built-in.o: in function `dram_init': /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../board/hitachi/k2g_hpc/board.c:42: undefined reference to `ddr3_init' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: board/hitachi/k2g_hpc/built-in.o: in function `ft_board_setup': /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../board/hitachi/k2g_hpc/board.c:112: undefined reference to `ddr3_get_size' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: common/built-in.o: in function `fit_find_config_node': /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../common/common_fit.c:66: undefined reference to `board_fit_config_name_match' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: common/built-in.o:(.rodata.init_sequence_f+0x2c): undefined reference to `board_early_init_f' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: common/built-in.o:(.data.init_sequence_r+0x6c): undefined reference to `board_late_init' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: drivers/i2c/built-in.o: in function `_davinci_i2c_setspeed': /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../drivers/i2c/davinci_i2c.c:94: undefined reference to `get_external_clk' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-ld.bfd: /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc/../drivers/i2c/davinci_i2c.c:94: undefined reference to `get_external_clk' /home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/Makefile:1501: recipe for target 'u-boot' failed make[1]: *** [u-boot] Error 1 make[1]: Leaving directory '/home/rufolog/workspace/hpc/ti-processor-sdk-linux-rt-k2g-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/k2g_hpc' Makefile:148: recipe for target 'sub-make' failed make: *** [sub-make] Error 2
It seems the build process does not recognize the functions defined in header files in u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/arch/arm/mach-keystone/include/mach but looking in that directory all files are present and functions are defined.
Probably there is something not recognized/declared in Makefile, I am exploring in that direction. I hope you can help me.
Thanks
Graziano