| Mikael Starvik | 51533b6 | 2005-07-27 11:44:44 -0700 | [diff] [blame^] | 1 | /* $Id: head.S,v 1.4 2004/11/01 16:10:28 starvik Exp $ |
| 2 | * |
| 3 | * This used to be the rescue code but now that is handled by the |
| 4 | * RedBoot based RFL instead. Nothing to see here, move along. |
| 5 | */ |
| 6 | |
| 7 | #include <linux/config.h> |
| 8 | #include <asm/arch/hwregs/reg_map_asm.h> |
| 9 | #include <asm/arch/hwregs/config_defs_asm.h> |
| 10 | |
| 11 | .text |
| 12 | |
| 13 | ;; Start clocks for used blocks. |
| 14 | move.d REG_ADDR(config, regi_config, rw_clk_ctrl), $r1 |
| 15 | move.d [$r1], $r0 |
| 16 | or.d REG_STATE(config, rw_clk_ctrl, cpu, yes) | \ |
| 17 | REG_STATE(config, rw_clk_ctrl, bif, yes) | \ |
| 18 | REG_STATE(config, rw_clk_ctrl, fix_io, yes), $r0 |
| 19 | move.d $r0, [$r1] |
| 20 | |
| 21 | ;; Copy 68KB NAND flash to Internal RAM (if NAND boot) |
| 22 | move.d 0x38004000, $r10 |
| 23 | move.d 0x8000, $r11 |
| 24 | move.d 0x11000, $r12 |
| 25 | move.d copy_complete, $r13 |
| 26 | and.d 0x000fffff, $r13 |
| 27 | or.d 0x38000000, $r13 |
| 28 | |
| 29 | #include "../../lib/nand_init.S" |
| 30 | |
| 31 | ;; No NAND found |
| 32 | move.d CONFIG_ETRAX_PTABLE_SECTOR, $r10 |
| 33 | jump $r10 ; Jump to decompresser |
| 34 | nop |
| 35 | |
| 36 | copy_complete: |
| 37 | move.d 0x38000000 + CONFIG_ETRAX_PTABLE_SECTOR, $r10 |
| 38 | jump $r10 ; Jump to decompresser |
| 39 | nop |