Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Minimal MMU linux hangs on DE1 board

Hi all, when trying to build my first MMU linux on a DE1 board system hangs just after nios2-terminal with: nios2-terminal: connected to hardware target using JTAG UART on cable nios2-term...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Now i am done with uncompressing. But before booting the kernel after uncompressing system hangs while flushing the data cache. Below is the assembly code being used to flush dcache.

movia r1, NIOS2_DCACHE_SIZE

movui r2, NIOS2_DCACHE_LINE_SIZE

1: flushd 0(r1)

sub r1, r1, r2

call debug_print

bgt r1, r0, 1b

NIOS2_DCACHE_SIZE = 2k

NIOS2_DCACHE_LINE_SIZE = 32

I am not able to figure out . Please help.

Thanks

Tejeshwar