62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
||
|
|
/*
|
||
|
|
* TI DaVinci clock definitions
|
||
|
|
*
|
||
|
|
* Copyright (C) 2006-2007 Texas Instruments.
|
||
|
|
* Copyright (C) 2008-2009 Deep Root Systems, LLC
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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
|