| /* |
| * Copyright 2013 Google Inc. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but without any warranty; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| .arm |
| .global boot_arm_linux_jump |
| .type boot_arm_linux_jump, function |
| boot_arm_linux_jump: |
| /* Entered with R0 = &fdt, R1 = entry */ |
| |
| /* Linux ABI expects SVC mode (0x13) with IRQ(7) and FIQ(6) disabled */ |
| msr cpsr_cxf, #0xd3 |
| |
| /* CAREFUL: Stack pointer (SVC banked) will be invalid from here on! */ |
| mov r3, r1 /* save entry pointer */ |
| mov r1, #-1 /* R1 = 0xffffffff (Invalid Machine Type) */ |
| mov r2, r0 /* R2 = &fdt */ |
| eor r0, r0 /* R0 = 0 (ABI-mandated for some odd reason) */ |
| mov pc, r3 /* jump to entry pointer */ |
