projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 500856eb RJ |
1 | /* |
| 2 | * (C) Copyright 2007 Semihalf | |
| 3 | * | |
| 4 | * Written by: Rafal Jaworowski <raj@semihalf.com> | |
| 5 | * | |
| 1a459660 | 6 | * SPDX-License-Identifier: GPL-2.0+ |
| 500856eb RJ |
7 | */ |
| 8 | ||
| 9 | #if defined(CONFIG_PPC) | |
| 10 | ||
| 11 | .text | |
| 500856eb RJ |
12 | .globl _start |
| 13 | _start: | |
| b84d7d8f RJ |
14 | lis %r11, search_hint@ha |
| 15 | addi %r11, %r11, search_hint@l | |
| 16 | stw %r1, 0(%r11) | |
| 500856eb RJ |
17 | b main |
| 18 | ||
| 19 | ||
| 20 | .globl syscall | |
| 21 | syscall: | |
| 22 | lis %r11, syscall_ptr@ha | |
| 23 | addi %r11, %r11, syscall_ptr@l | |
| 24 | lwz %r11, 0(%r11) | |
| 25 | mtctr %r11 | |
| 26 | bctr | |
| 7fb6c4f9 RJ |
27 | |
| 28 | #elif defined(CONFIG_ARM) | |
| 29 | ||
| 30 | .text | |
| 31 | .globl _start | |
| 32 | _start: | |
| 33 | ldr ip, =search_hint | |
| 34 | str sp, [ip] | |
| 35 | b main | |
| 36 | ||
| 37 | ||
| 38 | .globl syscall | |
| 39 | syscall: | |
| 40 | ldr ip, =syscall_ptr | |
| 41 | ldr pc, [ip] | |
| 42 | ||
| 7c604231 SG |
43 | #elif defined(CONFIG_MIPS) |
| 44 | .text | |
| 45 | .globl __start | |
| 46 | .ent __start | |
| 47 | __start: | |
| 48 | sw $sp, search_hint | |
| 49 | b main | |
| 50 | .end __start | |
| 51 | ||
| 52 | .globl syscall | |
| 53 | .ent syscall | |
| 54 | syscall: | |
| 55 | sw $ra, return_addr | |
| 56 | lw $t9, syscall_ptr | |
| 57 | jalr $t9 | |
| 58 | nop | |
| 59 | lw $ra, return_addr | |
| 60 | jr $ra | |
| 61 | nop | |
| 62 | .end syscall | |
| 63 | ||
| 64 | return_addr: | |
| 65 | .align 4 | |
| 66 | .long 0 | |
| b84d7d8f RJ |
67 | #else |
| 68 | #error No support for this arch! | |
| 69 | #endif | |
| 500856eb RJ |
70 | |
| 71 | .globl syscall_ptr | |
| 72 | syscall_ptr: | |
| 73 | .align 4 | |
| 74 | .long 0 | |
| b84d7d8f RJ |
75 | |
| 76 | .globl search_hint | |
| 77 | search_hint: | |
| 78 | .long 0 |