| ############################################################ | |
| # | |
| # Copyright Altera 2013 | |
| # All Rights Reserved | |
| # File: uboot.ds | |
| # | |
| ############################################################ | |
| # | |
| # This is an ARM DS5 debugger script that is intended to help folks run and | |
| # debug uboot. It loads the preloader (a.k.a. spl) into onchip ram, runs it | |
| # to setup DDR, then loads uboot, lets uboot run a bit to calculate relocation | |
| # offset, and finally reloads symbol table with calculated offset in the | |
| # relocated code. | |
| # | |
| # | |
| # load and run the preloader | |
| # | |
| source -v "$sdir/preloader.ds" | |
| # | |
| # now load unrelocated uboot into ddr | |
| # | |
| loadfile "$sdir/uboot-socfpga/u-boot" | |
| # set pc to start of uboot | |
| start | |
| # | |
| # set breakpoint at start of code that relocates uboot | |
| tbreak relocate_code | |
| cont | |
| wait 60s | |
| # | |
| # | |
| # now reload the symbol table with runtime calculated relocation offset. | |
| # register r8 is uboot's "global data" pointer. | |
| # | |
| symbol-file "$sdir/uboot-socfpga/u-boot" ((gd_t*)$r8)->reloc_off | |
| # | |
| # Now set a break in the board_init_r (from uboot). It must be a hardware | |
| # breakpoint because this is after relocation. | |
| # | |
| thbreak board_init_r | |
| cont | |
| wait 60s | |