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-rw-r--r--arch/cris/arch-v10/boot/compressed/head.S98
1 files changed, 49 insertions, 49 deletions
diff --git a/arch/cris/arch-v10/boot/compressed/head.S b/arch/cris/arch-v10/boot/compressed/head.S
index 610bdb237553..981fbae84959 100644
--- a/arch/cris/arch-v10/boot/compressed/head.S
+++ b/arch/cris/arch-v10/boot/compressed/head.S
@@ -15,77 +15,77 @@
15#define COMMAND_LINE_MAGIC 0x87109563 15#define COMMAND_LINE_MAGIC 0x87109563
16 16
17 ;; Exported symbols 17 ;; Exported symbols
18
19 .globl _input_data
20 18
21 19 .globl input_data
20
21
22 .text 22 .text
23 23
24 nop 24 nop
25 di 25 di
26 26
27;; We need to initialze DRAM registers before we start using the DRAM 27;; We need to initialze DRAM registers before we start using the DRAM
28 28
29 cmp.d RAM_INIT_MAGIC, r8 ; Already initialized? 29 cmp.d RAM_INIT_MAGIC, $r8 ; Already initialized?
30 beq dram_init_finished 30 beq dram_init_finished
31 nop 31 nop
32 32
33#include "../../lib/dram_init.S" 33#include "../../lib/dram_init.S"
34 34
35dram_init_finished: 35dram_init_finished:
36 36
37 ;; Initiate the PA and PB ports 37 ;; Initiate the PA and PB ports
38 38
39 move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, r0 39 move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, $r0
40 move.b r0, [R_PORT_PA_DATA] 40 move.b $r0, [R_PORT_PA_DATA]
41 41
42 move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, r0 42 move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, $r0
43 move.b r0, [R_PORT_PA_DIR] 43 move.b $r0, [R_PORT_PA_DIR]
44 44
45 move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, r0 45 move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, $r0
46 move.b r0, [R_PORT_PB_DATA] 46 move.b $r0, [R_PORT_PB_DATA]
47 47
48 move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, r0 48 move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, $r0
49 move.b r0, [R_PORT_PB_DIR] 49 move.b $r0, [R_PORT_PB_DIR]
50 50
51 ;; Setup the stack to a suitably high address. 51 ;; Setup the stack to a suitably high address.
52 ;; We assume 8 MB is the minimum DRAM in an eLinux 52 ;; We assume 8 MB is the minimum DRAM in an eLinux
53 ;; product and put the sp at the top for now. 53 ;; product and put the sp at the top for now.
54 54
55 move.d 0x40800000, sp 55 move.d 0x40800000, $sp
56 56
57 ;; Figure out where the compressed piggyback image is 57 ;; Figure out where the compressed piggyback image is
58 ;; in the flash (since we wont try to copy it to DRAM 58 ;; in the flash (since we wont try to copy it to DRAM
59 ;; before unpacking). It is at _edata, but in flash. 59 ;; before unpacking). It is at _edata, but in flash.
60 ;; Use (_edata - basse) as offset to the current PC. 60 ;; Use (_edata - basse) as offset to the current PC.
61 61
62basse: move.d pc, r5 62basse: move.d $pc, $r5
63 and.d 0x7fffffff, r5 ; strip any non-cache bit 63 and.d 0x7fffffff, $r5 ; strip any non-cache bit
64 subq 2, r5 ; compensate for the move.d pc instr 64 subq 2, $r5 ; compensate for the move.d $pc instr
65 move.d r5, r0 ; save for later - flash address of 'basse' 65 move.d $r5, $r0 ; save for later - flash address of 'basse'
66 add.d _edata, r5 66 add.d _edata, $r5
67 sub.d basse, r5 ; r5 = flash address of '_edata' 67 sub.d basse, $r5 ; $r5 = flash address of '_edata'
68 68
69 ;; Copy text+data to DRAM 69 ;; Copy text+data to DRAM
70 70
71 move.d basse, r1 ; destination 71 move.d basse, $r1 ; destination
72 move.d _edata, r2 ; end destination 72 move.d _edata, $r2 ; end destination
731: move.w [r0+], r3 731: move.w [$r0+], $r3
74 move.w r3, [r1+] 74 move.w $r3, [$r1+]
75 cmp.d r2, r1 75 cmp.d $r2, $r1
76 bcs 1b 76 bcs 1b
77 nop 77 nop
78 78
79 move.d r5, [_input_data] ; for the decompressor 79 move.d $r5, [input_data] ; for the decompressor
80 80
81 81
82 ;; Clear the decompressors BSS (between _edata and _end) 82 ;; Clear the decompressors BSS (between _edata and _end)
83 83
84 moveq 0, r0 84 moveq 0, $r0
85 move.d _edata, r1 85 move.d _edata, $r1
86 move.d _end, r2 86 move.d _end, $r2
871: move.w r0, [r1+] 871: move.w $r0, [$r1+]
88 cmp.d r2, r1 88 cmp.d $r2, $r1
89 bcs 1b 89 bcs 1b
90 nop 90 nop
91 91
@@ -94,16 +94,16 @@ basse: move.d pc, r5
94 move.d $r10, [$r12] 94 move.d $r10, [$r12]
95 move.d _cmd_line_addr, $r12 95 move.d _cmd_line_addr, $r12
96 move.d $r11, [$r12] 96 move.d $r11, [$r12]
97
98 ;; Do the decompression and save compressed size in _inptr
99 97
100 jsr _decompress_kernel 98 ;; Do the decompression and save compressed size in inptr
101 99
102 ;; Put start address of root partition in r9 so the kernel can use it 100 jsr decompress_kernel
101
102 ;; Put start address of root partition in $r9 so the kernel can use it
103 ;; when mounting from flash 103 ;; when mounting from flash
104 104
105 move.d [_input_data], r9 ; flash address of compressed kernel 105 move.d [input_data], $r9 ; flash address of compressed kernel
106 add.d [_inptr], r9 ; size of compressed kernel 106 add.d [inptr], $r9 ; size of compressed kernel
107 107
108 ;; Restore command line magic and address. 108 ;; Restore command line magic and address.
109 move.d _cmd_line_magic, $r10 109 move.d _cmd_line_magic, $r10
@@ -112,12 +112,12 @@ basse: move.d pc, r5
112 move.d [$r11], $r11 112 move.d [$r11], $r11
113 113
114 ;; Enter the decompressed kernel 114 ;; Enter the decompressed kernel
115 move.d RAM_INIT_MAGIC, r8 ; Tell kernel that DRAM is initialized 115 move.d RAM_INIT_MAGIC, $r8 ; Tell kernel that DRAM is initialized
116 jump 0x40004000 ; kernel is linked to this address 116 jump 0x40004000 ; kernel is linked to this address
117 117
118 .data 118 .data
119 119
120_input_data: 120input_data:
121 .dword 0 ; used by the decompressor 121 .dword 0 ; used by the decompressor
122_cmd_line_magic: 122_cmd_line_magic:
123 .dword 0 123 .dword 0