| /* $Id: head.S,v 1.4 2004/11/01 16:10:28 starvik Exp $ |
| * |
| * This used to be the rescue code but now that is handled by the |
| * RedBoot based RFL instead. Nothing to see here, move along. |
| */ |
| |
| #include <asm/arch/hwregs/reg_map_asm.h> |
| #include <asm/arch/hwregs/config_defs_asm.h> |
| |
| .text |
| |
| ;; Start clocks for used blocks. |
| move.d REG_ADDR(config, regi_config, rw_clk_ctrl), $r1 |
| move.d [$r1], $r0 |
| or.d REG_STATE(config, rw_clk_ctrl, cpu, yes) | \ |
| REG_STATE(config, rw_clk_ctrl, bif, yes) | \ |
| REG_STATE(config, rw_clk_ctrl, fix_io, yes), $r0 |
| move.d $r0, [$r1] |
| |
| ;; Copy 68KB NAND flash to Internal RAM (if NAND boot) |
| move.d 0x38004000, $r10 |
| move.d 0x8000, $r11 |
| move.d 0x11000, $r12 |
| move.d copy_complete, $r13 |
| and.d 0x000fffff, $r13 |
| or.d 0x38000000, $r13 |
| |
| #include "../../lib/nand_init.S" |
| |
| ;; No NAND found |
| move.d CONFIG_ETRAX_PTABLE_SECTOR, $r10 |
| jump $r10 ; Jump to decompresser |
| nop |
| |
| copy_complete: |
| move.d 0x38000000 + CONFIG_ETRAX_PTABLE_SECTOR, $r10 |
| jump $r10 ; Jump to decompresser |
| nop |