58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
|
|
* clock2430.c - OMAP2430-specific clock integration code
|
|
*
|
|
* Copyright (C) 2005-2008 Texas Instruments, Inc.
|
|
* Copyright (C) 2004-2010 Nokia Corporation
|
|
*
|
|
* Contacts:
|
|
* Richard Woodruff <r-woodruff2@ti.com>
|
|
* Paul Walmsley
|
|
*
|
|
* Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
|
|
* Gordon McNutt and RidgeRun, Inc.
|
|
*
|
|
* 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.
|
|
*/
|
|
#undef DEBUG
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/io.h>
|
|
|
|
#include "soc.h"
|
|
#include "iomap.h"
|
|
#include "clock.h"
|
|
#include "clock2xxx.h"
|
|
#include "cm2xxx.h"
|
|
#include "cm-regbits-24xx.h"
|
|
|
|
/**
|
|
* omap2430_clk_i2chs_find_idlest - return CM_IDLEST info for 2430 I2CHS
|
|
* @clk: struct clk * being enabled
|
|
* @idlest_reg: void __iomem ** to store CM_IDLEST reg address into
|
|
* @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into
|
|
* @idlest_val: pointer to a u8 to store the CM_IDLEST indicator
|
|
*
|
|
* OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the
|
|
* CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE. This custom function
|
|
* passes back the correct CM_IDLEST register address for I2CHS
|
|
* modules. No return value.
|
|
*/
|
|
static void omap2430_clk_i2chs_find_idlest(struct clk_hw_omap *clk,
|
|
void __iomem **idlest_reg,
|
|
u8 *idlest_bit,
|
|
u8 *idlest_val)
|
|
{
|
|
*idlest_reg = OMAP2430_CM_REGADDR(CORE_MOD, CM_IDLEST);
|
|
*idlest_bit = clk->enable_bit;
|
|
*idlest_val = OMAP24XX_CM_IDLEST_VAL;
|
|
}
|
|
|
|
/* 2430 I2CHS has non-standard IDLEST register */
|
|
const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait = {
|
|
.find_idlest = omap2430_clk_i2chs_find_idlest,
|
|
.find_companion = omap2_clk_dflt_find_companion,
|
|
};
|