buildroot to build toolchain on Linux

Hi nvs,

The .config is not related to ptf. The ptf is used to create a header file for hardware address.

When you run,

make ARCH=nios2nommu CROSS_COMPILE=nios2-linux-uclibc- hwselect SYSPTF=your_system.ptf

it will ask you some questions, like these. And you should make selections.

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no emulation specific options.

RUNNING hwselect

--- Please select which CPU you wish to build the kernel against:

(1) cpu_0 - Class: altera_nios2 Type: f Version: 5.1

Selection: 1

--- Please select a device to upload the kernel to:

(1) cfi_flash_0

Class: altera_avalon_cfi_flash

Size: 8388608 bytes

Selection: 1

--- Please select a device to execute kernel from:

(1) ddr_sdram_0

Class: ddr_sdram_component

Size: 67108864 bytes

(2) onchip_memory_0

Class: altera_avalon_onchip_memory2

Size: 8192 bytes

Selection: 1

--- Summary using

PTF: /home/jack/prog/v1.ptf

CPU: cpu_0

Device to upload to: cfi_flash_0

Program memory to execute from: ddr_sdram_0

--- Settings written to /home/jack/linux-2.6.15.3/arch/nios2nommu/hardware.mk[/b]

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You will always need a cfi memory for the hwselect perl script, even when you use EPCS. Just add a dummy cfi flash to a copy of your real ptf and make the hwselect happy. It is for hwselect only. You dont need it for hardware.

That&#39;s what required for hwselect,

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You should start with a mininal system with only nios2 cpu core,dram,timer,jtag/serial console and a cfi flash, (which can be dummy and removed later). Note, the interrupt vector (ie, execption vector) should be in uClinux program memory.[/b]

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You need a full featured timer.