diff options
Diffstat (limited to 'arch/arm/kernel/head-common.S')
-rw-r--r-- | arch/arm/kernel/head-common.S | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S index 8f57515bbdb0..c84b57d27d07 100644 --- a/arch/arm/kernel/head-common.S +++ b/arch/arm/kernel/head-common.S | |||
@@ -25,83 +25,6 @@ | |||
25 | * machine ID for example). | 25 | * machine ID for example). |
26 | */ | 26 | */ |
27 | __HEAD | 27 | __HEAD |
28 | __error_a: | ||
29 | #ifdef CONFIG_DEBUG_LL | ||
30 | mov r4, r1 @ preserve machine ID | ||
31 | adr r0, str_a1 | ||
32 | bl printascii | ||
33 | mov r0, r4 | ||
34 | bl printhex8 | ||
35 | adr r0, str_a2 | ||
36 | bl printascii | ||
37 | adr r3, __lookup_machine_type_data | ||
38 | ldmia r3, {r4, r5, r6} @ get machine desc list | ||
39 | sub r4, r3, r4 @ get offset between virt&phys | ||
40 | add r5, r5, r4 @ convert virt addresses to | ||
41 | add r6, r6, r4 @ physical address space | ||
42 | 1: ldr r0, [r5, #MACHINFO_TYPE] @ get machine type | ||
43 | bl printhex8 | ||
44 | mov r0, #'\t' | ||
45 | bl printch | ||
46 | ldr r0, [r5, #MACHINFO_NAME] @ get machine name | ||
47 | add r0, r0, r4 | ||
48 | bl printascii | ||
49 | mov r0, #'\n' | ||
50 | bl printch | ||
51 | add r5, r5, #SIZEOF_MACHINE_DESC @ next machine_desc | ||
52 | cmp r5, r6 | ||
53 | blo 1b | ||
54 | adr r0, str_a3 | ||
55 | bl printascii | ||
56 | b __error | ||
57 | ENDPROC(__error_a) | ||
58 | |||
59 | str_a1: .asciz "\nError: unrecognized/unsupported machine ID (r1 = 0x" | ||
60 | str_a2: .asciz ").\n\nAvailable machine support:\n\nID (hex)\tNAME\n" | ||
61 | str_a3: .asciz "\nPlease check your kernel config and/or bootloader.\n" | ||
62 | .align | ||
63 | #else | ||
64 | b __error | ||
65 | #endif | ||
66 | |||
67 | /* | ||
68 | * Lookup machine architecture in the linker-build list of architectures. | ||
69 | * Note that we can't use the absolute addresses for the __arch_info | ||
70 | * lists since we aren't running with the MMU on (and therefore, we are | ||
71 | * not in the correct address space). We have to calculate the offset. | ||
72 | * | ||
73 | * r1 = machine architecture number | ||
74 | * Returns: | ||
75 | * r3, r4, r6 corrupted | ||
76 | * r5 = mach_info pointer in physical address space | ||
77 | */ | ||
78 | __lookup_machine_type: | ||
79 | adr r3, __lookup_machine_type_data | ||
80 | ldmia r3, {r4, r5, r6} | ||
81 | sub r3, r3, r4 @ get offset between virt&phys | ||
82 | add r5, r5, r3 @ convert virt addresses to | ||
83 | add r6, r6, r3 @ physical address space | ||
84 | 1: ldr r3, [r5, #MACHINFO_TYPE] @ get machine type | ||
85 | teq r3, r1 @ matches loader number? | ||
86 | beq 2f @ found | ||
87 | add r5, r5, #SIZEOF_MACHINE_DESC @ next machine_desc | ||
88 | cmp r5, r6 | ||
89 | blo 1b | ||
90 | mov r5, #0 @ unknown machine | ||
91 | 2: mov pc, lr | ||
92 | ENDPROC(__lookup_machine_type) | ||
93 | |||
94 | /* | ||
95 | * Look in arch/arm/kernel/arch.[ch] for information about the | ||
96 | * __arch_info structures. | ||
97 | */ | ||
98 | .align 2 | ||
99 | .type __lookup_machine_type_data, %object | ||
100 | __lookup_machine_type_data: | ||
101 | .long . | ||
102 | .long __arch_info_begin | ||
103 | .long __arch_info_end | ||
104 | .size __lookup_machine_type_data, . - __lookup_machine_type_data | ||
105 | 28 | ||
106 | /* Determine validity of the r2 atags pointer. The heuristic requires | 29 | /* Determine validity of the r2 atags pointer. The heuristic requires |
107 | * that the pointer be aligned, in the first 16k of physical RAM and | 30 | * that the pointer be aligned, in the first 16k of physical RAM and |
@@ -109,8 +32,6 @@ __lookup_machine_type_data: | |||
109 | * of this function may be more lenient with the physical address and | 32 | * of this function may be more lenient with the physical address and |
110 | * may also be able to move the ATAGS block if necessary. | 33 | * may also be able to move the ATAGS block if necessary. |
111 | * | 34 | * |
112 | * r8 = machinfo | ||
113 | * | ||
114 | * Returns: | 35 | * Returns: |
115 | * r2 either valid atags pointer, or zero | 36 | * r2 either valid atags pointer, or zero |
116 | * r5, r6 corrupted | 37 | * r5, r6 corrupted |
@@ -185,17 +106,6 @@ __mmap_switched_data: | |||
185 | .size __mmap_switched_data, . - __mmap_switched_data | 106 | .size __mmap_switched_data, . - __mmap_switched_data |
186 | 107 | ||
187 | /* | 108 | /* |
188 | * This provides a C-API version of __lookup_machine_type | ||
189 | */ | ||
190 | ENTRY(lookup_machine_type) | ||
191 | stmfd sp!, {r4 - r6, lr} | ||
192 | mov r1, r0 | ||
193 | bl __lookup_machine_type | ||
194 | mov r0, r5 | ||
195 | ldmfd sp!, {r4 - r6, pc} | ||
196 | ENDPROC(lookup_machine_type) | ||
197 | |||
198 | /* | ||
199 | * This provides a C-API version of __lookup_processor_type | 109 | * This provides a C-API version of __lookup_processor_type |
200 | */ | 110 | */ |
201 | ENTRY(lookup_processor_type) | 111 | ENTRY(lookup_processor_type) |