| /* |
| * TI DaVinci clock definitions |
| * |
| * Copyright (C) 2006-2007 Texas Instruments. |
| * Copyright (C) 2008-2009 Deep Root Systems, LLC |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef __ARCH_ARM_DAVINCI_CLOCK_H |
| #define __ARCH_ARM_DAVINCI_CLOCK_H |
| |
| /* PLL/Reset register offsets */ |
| #define PLLCTL 0x100 |
| #define PLLCTL_PLLEN BIT(0) |
| #define PLLCTL_PLLPWRDN BIT(1) |
| #define PLLCTL_PLLRST BIT(3) |
| #define PLLCTL_PLLDIS BIT(4) |
| #define PLLCTL_PLLENSRC BIT(5) |
| #define PLLCTL_CLKMODE BIT(8) |
| |
| #define PLLM 0x110 |
| #define PLLM_PLLM_MASK 0xff |
| |
| #define PREDIV 0x114 |
| #define PLLDIV1 0x118 |
| #define PLLDIV2 0x11c |
| #define PLLDIV3 0x120 |
| #define POSTDIV 0x128 |
| #define BPDIV 0x12c |
| #define PLLCMD 0x138 |
| #define PLLSTAT 0x13c |
| #define PLLALNCTL 0x140 |
| #define PLLDCHANGE 0x144 |
| #define PLLCKEN 0x148 |
| #define PLLCKSTAT 0x14c |
| #define PLLSYSTAT 0x150 |
| #define PLLDIV4 0x160 |
| #define PLLDIV5 0x164 |
| #define PLLDIV6 0x168 |
| #define PLLDIV7 0x16c |
| #define PLLDIV8 0x170 |
| #define PLLDIV9 0x174 |
| #define PLLDIV_EN BIT(15) |
| #define PLLDIV_RATIO_MASK 0x1f |
| |
| /* |
| * OMAP-L138 system reference guide recommends a wait for 4 OSCIN/CLKIN |
| * cycles to ensure that the PLLC has switched to bypass mode. Delay of 1us |
| * ensures we are good for all > 4MHz OSCIN/CLKIN inputs. Typically the input |
| * is ~25MHz. Units are micro seconds. |
| */ |
| #define PLL_BYPASS_TIME 1 |
| /* From OMAP-L138 datasheet table 6-4. Units are micro seconds */ |
| #define PLL_RESET_TIME 1 |
| /* |
| * From OMAP-L138 datasheet table 6-4; assuming prediv = 1, sqrt(pllm) = 4 |
| * Units are micro seconds. |
| */ |
| #define PLL_LOCK_TIME 20 |
| |
| #endif |
