diff options
Diffstat (limited to 'utils/hwstub/stub/jz4760b/target.c')
-rw-r--r-- | utils/hwstub/stub/jz4760b/target.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/utils/hwstub/stub/jz4760b/target.c b/utils/hwstub/stub/jz4760b/target.c new file mode 100644 index 0000000000..1678bfeba7 --- /dev/null +++ b/utils/hwstub/stub/jz4760b/target.c | |||
@@ -0,0 +1,84 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * | ||
9 | * Copyright (C) 2014 by Marcin Bukat | ||
10 | * | ||
11 | * This program is free software; you can redistribute it and/or | ||
12 | * modify it under the terms of the GNU General Public License | ||
13 | * as published by the Free Software Foundation; either version 2 | ||
14 | * of the License, or (at your option) any later version. | ||
15 | * | ||
16 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
17 | * KIND, either express or implied. | ||
18 | * | ||
19 | ****************************************************************************/ | ||
20 | #include "stddef.h" | ||
21 | #include "target.h" | ||
22 | #include "system.h" | ||
23 | #include "logf.h" | ||
24 | #include "jz4760b.h" | ||
25 | |||
26 | #define PIN_BL (4 * 32 + 1) | ||
27 | |||
28 | struct hwstub_target_desc_t __attribute__((aligned(2))) target_descriptor = | ||
29 | { | ||
30 | sizeof(struct hwstub_target_desc_t), | ||
31 | HWSTUB_DT_TARGET, | ||
32 | HWSTUB_TARGET_JZ, | ||
33 | "JZ4760(B)" | ||
34 | }; | ||
35 | |||
36 | static struct hwstub_jz_desc_t jz_descriptor = | ||
37 | { | ||
38 | sizeof(struct hwstub_jz_desc_t), | ||
39 | HWSTUB_DT_JZ, | ||
40 | 0x4760, | ||
41 | 'B' | ||
42 | }; | ||
43 | |||
44 | |||
45 | void target_udelay(int us) | ||
46 | { | ||
47 | /* use OS timer running at 3MHz */ | ||
48 | uint32_t end = REG_OST_OSTCNTL + 3 * us; | ||
49 | while(REG_OST_OSTCNTL < end) {} | ||
50 | } | ||
51 | |||
52 | void ost_init(void) | ||
53 | { | ||
54 | /* Init OS Timer: don't compare, use EXTCLK (12MHz) and set prescaler to 4 | ||
55 | * so that it increases at 3MHz */ | ||
56 | REG_TCU_TECR = TECR_OST; /* disable OST */ | ||
57 | REG_OST_OSTCSR = OSTCSR_CNT_MD | OSTCSR_PRESCALE4 | OSTCSR_EXT_EN; | ||
58 | REG_OST_OSTCNTL = 0; | ||
59 | REG_TCU_TESR = TESR_OST; /* enable OST */ | ||
60 | } | ||
61 | |||
62 | void target_mdelay(int ms) | ||
63 | { | ||
64 | return target_udelay(ms * 1000); | ||
65 | } | ||
66 | |||
67 | void target_init(void) | ||
68 | { | ||
69 | ost_init(); | ||
70 | } | ||
71 | |||
72 | void target_get_desc(int desc, void **buffer) | ||
73 | { | ||
74 | if(desc == HWSTUB_DT_JZ) | ||
75 | *buffer = &jz_descriptor; | ||
76 | else | ||
77 | *buffer = NULL; | ||
78 | } | ||
79 | |||
80 | void target_get_config_desc(void *buffer, int *size) | ||
81 | { | ||
82 | (void) buffer; | ||
83 | (void) size; | ||
84 | } | ||