| Furquan Shaikh | 8c8c377 | 2014-02-19 11:35:30 -0800 | [diff] [blame] | 1 | /* |
| Furquan Shaikh | 8c8c377 | 2014-02-19 11:35:30 -0800 | [diff] [blame] | 2 | * |
| 3 | * Copyright (C) 2008 Advanced Micro Devices, Inc. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 26 | * SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <arch/asm.h> |
| Julius Werner | bf33b03 | 2020-02-14 12:42:01 -0800 | [diff] [blame] | 30 | #include <arch/lib_helpers.h> |
| Furquan Shaikh | 8c8c377 | 2014-02-19 11:35:30 -0800 | [diff] [blame] | 31 | |
| 32 | /* |
| 33 | * Our entry point |
| 34 | */ |
| 35 | ENTRY(_entry) |
| Julius Werner | bf33b03 | 2020-02-14 12:42:01 -0800 | [diff] [blame] | 36 | /* Initialize SCTLR to intended state (icache and stack-alignment on) */ |
| 37 | ldr w1, =(SCTLR_RES1 | SCTLR_I | SCTLR_SA) |
| 38 | msr sctlr_el2, x1 |
| Furquan Shaikh | 8c8c377 | 2014-02-19 11:35:30 -0800 | [diff] [blame] | 39 | |
| 40 | /* Save off the location of the coreboot tables */ |
| 41 | ldr x1, 1f |
| 42 | str x0, [x1] |
| 43 | |
| Furquan Shaikh | 8c8c377 | 2014-02-19 11:35:30 -0800 | [diff] [blame] | 44 | /* Setup new stack */ |
| 45 | ldr x1, 2f |
| Furquan Shaikh | 02efc94 | 2014-08-27 21:40:23 -0700 | [diff] [blame] | 46 | mov sp, x1 |
| Furquan Shaikh | 8c8c377 | 2014-02-19 11:35:30 -0800 | [diff] [blame] | 47 | |
| 48 | /* Let's rock. */ |
| 49 | bl start_main |
| 50 | |
| Furquan Shaikh | 8c8c377 | 2014-02-19 11:35:30 -0800 | [diff] [blame] | 51 | ret |
| 52 | ENDPROC(_entry) |
| 53 | |
| 54 | .align 4 |
| 55 | 1: |
| 56 | .quad cb_header_ptr |
| 57 | 2: |
| Yi Chou | 32ea2ab | 2023-11-18 12:12:01 +0800 | [diff] [blame^] | 58 | .quad _estack |