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1 | /* |
1 | /* |
2 | * Copyright (C) 2006 Martin Decky |
2 | * Copyright (C) 2006 Martin Decky |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #include <arch/drivers/cuda.h> |
29 | #include <arch/drivers/cuda.h> |
30 | #include <arch/asm.h> |
30 | #include <arch/asm.h> |
- | 31 | #include <console/chardev.h> |
|
- | 32 | #include <console/console.h> |
|
31 | 33 | ||
32 | #define CUDA_PACKET 0x01 |
34 | #define CUDA_PACKET 0x01 |
33 | #define CUDA_POWERDOWN 0x0a |
35 | #define CUDA_POWERDOWN 0x0a |
34 | 36 | ||
35 | #define RS 0x200 |
37 | #define RS 0x200 |
36 | #define B (0 * RS) |
38 | #define B (0 * RS) |
37 | #define A (1 * RS) |
39 | #define A (1 * RS) |
38 | #define SR (10 * RS) |
40 | #define SR (10 * RS) |
39 | #define ACR (11 * RS) |
41 | #define ACR (11 * RS) |
40 | 42 | ||
41 | #define SR_OUT 0x10 |
43 | #define SR_OUT 0x10 |
42 | #define TACK 0x10 |
44 | #define TACK 0x10 |
43 | #define TIP 0x20 |
45 | #define TIP 0x20 |
44 | 46 | ||
45 | 47 | ||
46 | static volatile __u8 *cuda = (__u8 *) 0xf2000000; |
48 | static volatile __u8 *cuda = (__u8 *) 0xf2000000; |
47 | 49 | ||
48 | 50 | ||
49 | static void cuda_packet(const __u8 data) |
51 | static void cuda_packet(const __u8 data) |
50 | { |
52 | { |
51 | cuda[B] = cuda[B] | TIP; |
53 | cuda[B] = cuda[B] | TIP; |
52 | cuda[ACR] = cuda[ACR] | SR_OUT; |
54 | cuda[ACR] = cuda[ACR] | SR_OUT; |
53 | cuda[SR] = CUDA_PACKET; |
55 | cuda[SR] = CUDA_PACKET; |
54 | cuda[B] = cuda[B] & ~TIP; |
56 | cuda[B] = cuda[B] & ~TIP; |
55 | 57 | ||
56 | cuda[ACR] = cuda[ACR] | SR_OUT; |
58 | cuda[ACR] = cuda[ACR] | SR_OUT; |
57 | cuda[SR] = data; |
59 | cuda[SR] = data; |
58 | cuda[B] = cuda[B] | TACK; |
60 | cuda[B] = cuda[B] | TACK; |
59 | 61 | ||
60 | cuda[B] = cuda[B] | TIP; |
62 | cuda[B] = cuda[B] | TIP; |
61 | } |
63 | } |
62 | 64 | ||
63 | 65 | ||
64 | void cpu_halt(void) { |
66 | void cpu_halt(void) { |
65 | cuda_packet(CUDA_POWERDOWN); |
67 | cuda_packet(CUDA_POWERDOWN); |
66 | 68 | ||
67 | cpu_sleep(); |
69 | cpu_sleep(); |
68 | } |
70 | } |
69 | 71 |