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3e062b07 VB |
1 | /* |
2 | * TI DaVinci clock definitions | |
3 | * | |
c5b736d0 KH |
4 | * Copyright (C) 2006-2007 Texas Instruments. |
5 | * Copyright (C) 2008-2009 Deep Root Systems, LLC | |
3e062b07 VB |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #ifndef __ARCH_ARM_DAVINCI_CLOCK_H | |
13 | #define __ARCH_ARM_DAVINCI_CLOCK_H | |
14 | ||
c5b736d0 KH |
15 | /* PLL/Reset register offsets */ |
16 | #define PLLCTL 0x100 | |
17 | #define PLLCTL_PLLEN BIT(0) | |
d6a61563 SN |
18 | #define PLLCTL_PLLPWRDN BIT(1) |
19 | #define PLLCTL_PLLRST BIT(3) | |
20 | #define PLLCTL_PLLDIS BIT(4) | |
21 | #define PLLCTL_PLLENSRC BIT(5) | |
c5b736d0 KH |
22 | #define PLLCTL_CLKMODE BIT(8) |
23 | ||
24 | #define PLLM 0x110 | |
25 | #define PLLM_PLLM_MASK 0xff | |
26 | ||
27 | #define PREDIV 0x114 | |
28 | #define PLLDIV1 0x118 | |
29 | #define PLLDIV2 0x11c | |
30 | #define PLLDIV3 0x120 | |
31 | #define POSTDIV 0x128 | |
32 | #define BPDIV 0x12c | |
33 | #define PLLCMD 0x138 | |
34 | #define PLLSTAT 0x13c | |
35 | #define PLLALNCTL 0x140 | |
36 | #define PLLDCHANGE 0x144 | |
37 | #define PLLCKEN 0x148 | |
38 | #define PLLCKSTAT 0x14c | |
39 | #define PLLSYSTAT 0x150 | |
40 | #define PLLDIV4 0x160 | |
41 | #define PLLDIV5 0x164 | |
42 | #define PLLDIV6 0x168 | |
43 | #define PLLDIV7 0x16c | |
44 | #define PLLDIV8 0x170 | |
45 | #define PLLDIV9 0x174 | |
46 | #define PLLDIV_EN BIT(15) | |
47 | #define PLLDIV_RATIO_MASK 0x1f | |
48 | ||
9a219a9e SN |
49 | /* |
50 | * OMAP-L138 system reference guide recommends a wait for 4 OSCIN/CLKIN | |
51 | * cycles to ensure that the PLLC has switched to bypass mode. Delay of 1us | |
52 | * ensures we are good for all > 4MHz OSCIN/CLKIN inputs. Typically the input | |
53 | * is ~25MHz. Units are micro seconds. | |
54 | */ | |
55 | #define PLL_BYPASS_TIME 1 | |
56 | /* From OMAP-L138 datasheet table 6-4. Units are micro seconds */ | |
57 | #define PLL_RESET_TIME 1 | |
58 | /* | |
59 | * From OMAP-L138 datasheet table 6-4; assuming prediv = 1, sqrt(pllm) = 4 | |
60 | * Units are micro seconds. | |
61 | */ | |
62 | #define PLL_LOCK_TIME 20 | |
63 | ||
e2da3aaa | 64 | #endif |