diff options
Diffstat (limited to 'arch/m68knommu/platform/68328/head-ram.S')
-rw-r--r-- | arch/m68knommu/platform/68328/head-ram.S | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/arch/m68knommu/platform/68328/head-ram.S b/arch/m68knommu/platform/68328/head-ram.S deleted file mode 100644 index 7f1aeeacb219..000000000000 --- a/arch/m68knommu/platform/68328/head-ram.S +++ /dev/null | |||
@@ -1,141 +0,0 @@ | |||
1 | |||
2 | .global __main | ||
3 | .global __rom_start | ||
4 | |||
5 | .global _rambase | ||
6 | .global _ramstart | ||
7 | |||
8 | .global splash_bits | ||
9 | .global _start | ||
10 | .global _stext | ||
11 | .global _edata | ||
12 | |||
13 | #define DEBUG | ||
14 | #define ROM_OFFSET 0x10C00000 | ||
15 | #define STACK_GAURD 0x10 | ||
16 | |||
17 | .text | ||
18 | |||
19 | _start: | ||
20 | _stext: | ||
21 | movew #0x2700, %sr /* Exceptions off! */ | ||
22 | |||
23 | #if 0 | ||
24 | /* Init chip registers. uCsimm specific */ | ||
25 | moveb #0x00, 0xfffffb0b /* Watchdog off */ | ||
26 | moveb #0x10, 0xfffff000 /* SCR */ | ||
27 | |||
28 | movew #0x2400, 0xfffff200 /* PLLCR */ | ||
29 | movew #0x0123, 0xfffff202 /* PLLFSR */ | ||
30 | |||
31 | moveb #0x00, 0xfffff40b /* enable chip select */ | ||
32 | moveb #0x00, 0xfffff423 /* enable /DWE */ | ||
33 | moveb #0x08, 0xfffffd0d /* disable hardmap */ | ||
34 | moveb #0x07, 0xfffffd0e /* level 7 interrupt clear */ | ||
35 | |||
36 | movew #0x8600, 0xfffff100 /* FLASH at 0x10c00000 */ | ||
37 | movew #0x018b, 0xfffff110 /* 2Meg, enable, 0ws */ | ||
38 | |||
39 | movew #0x8f00, 0xfffffc00 /* DRAM configuration */ | ||
40 | movew #0x9667, 0xfffffc02 /* DRAM control */ | ||
41 | movew #0x0000, 0xfffff106 /* DRAM at 0x00000000 */ | ||
42 | movew #0x068f, 0xfffff116 /* 8Meg, enable, 0ws */ | ||
43 | |||
44 | moveb #0x40, 0xfffff300 /* IVR */ | ||
45 | movel #0x007FFFFF, %d0 /* IMR */ | ||
46 | movel %d0, 0xfffff304 | ||
47 | |||
48 | moveb 0xfffff42b, %d0 | ||
49 | andb #0xe0, %d0 | ||
50 | moveb %d0, 0xfffff42b | ||
51 | |||
52 | moveb #0x08, 0xfffff907 /* Ignore CTS */ | ||
53 | movew #0x010b, 0xfffff902 /* BAUD to 9600 */ | ||
54 | movew #0xe100, 0xfffff900 /* enable */ | ||
55 | #endif | ||
56 | |||
57 | movew #16384, %d0 /* PLL settle wait loop */ | ||
58 | L0: | ||
59 | subw #1, %d0 | ||
60 | bne L0 | ||
61 | #ifdef DEBUG | ||
62 | moveq #70, %d7 /* 'F' */ | ||
63 | moveb %d7,0xfffff907 /* No absolute addresses */ | ||
64 | pclp1: | ||
65 | movew 0xfffff906, %d7 | ||
66 | andw #0x2000, %d7 | ||
67 | beq pclp1 | ||
68 | #endif /* DEBUG */ | ||
69 | |||
70 | #ifdef DEBUG | ||
71 | moveq #82, %d7 /* 'R' */ | ||
72 | moveb %d7,0xfffff907 /* No absolute addresses */ | ||
73 | pclp3: | ||
74 | movew 0xfffff906, %d7 | ||
75 | andw #0x2000, %d7 | ||
76 | beq pclp3 | ||
77 | #endif /* DEBUG */ | ||
78 | moveal #0x007ffff0, %ssp | ||
79 | moveal #_sbss, %a0 | ||
80 | moveal #_ebss, %a1 | ||
81 | |||
82 | /* Copy 0 to %a0 until %a0 >= %a1 */ | ||
83 | L1: | ||
84 | movel #0, %a0@+ | ||
85 | cmpal %a0, %a1 | ||
86 | bhi L1 | ||
87 | |||
88 | #ifdef DEBUG | ||
89 | moveq #67, %d7 /* 'C' */ | ||
90 | jsr putc | ||
91 | #endif /* DEBUG */ | ||
92 | |||
93 | pea 0 | ||
94 | pea env | ||
95 | pea %sp@(4) | ||
96 | pea 0 | ||
97 | |||
98 | #ifdef DEBUG | ||
99 | moveq #70, %d7 /* 'F' */ | ||
100 | jsr putc | ||
101 | #endif /* DEBUG */ | ||
102 | |||
103 | lp: | ||
104 | jsr start_kernel | ||
105 | jmp lp | ||
106 | _exit: | ||
107 | |||
108 | jmp _exit | ||
109 | |||
110 | __main: | ||
111 | /* nothing */ | ||
112 | rts | ||
113 | |||
114 | #ifdef DEBUG | ||
115 | putc: | ||
116 | moveb %d7,0xfffff907 | ||
117 | pclp: | ||
118 | movew 0xfffff906, %d7 | ||
119 | andw #0x2000, %d7 | ||
120 | beq pclp | ||
121 | rts | ||
122 | #endif /* DEBUG */ | ||
123 | |||
124 | .data | ||
125 | |||
126 | /* | ||
127 | * Set up the usable of RAM stuff. Size of RAM is determined then | ||
128 | * an initial stack set up at the end. | ||
129 | */ | ||
130 | .align 4 | ||
131 | _ramvec: | ||
132 | .long 0 | ||
133 | _rambase: | ||
134 | .long 0 | ||
135 | _ramstart: | ||
136 | .long 0 | ||
137 | _ramend: | ||
138 | .long 0 | ||
139 | |||
140 | env: | ||
141 | .long 0 | ||