mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-17 17:24:17 +08:00
657ebfadc1
clock34xx_data.c now contains data for the OMAP34xx family, the OMAP36xx family, and the OMAP3517 family, so rename it to clock3xxx_data.c. Rename clock34xx.c to clock3xxx.c, and move the chip family-specific clock functions to clock34xx.c, clock36xx.c, or clock3517.c, as appropriate. So now "clock3xxx.*" refers to the OMAP3 superset. The main goal here is to prepare to compile chip family-specific clock functions only for kernel builds that target that chip family. To get to that point, we also need to add CONFIG_SOC_* options for those other chip families; that will be done in future patches, planned for 2.6.35. OMAP4 is also affected by this. It duplicated the OMAP3 non-CORE DPLL clkops structure. The OMAP4 variant of this clkops structure has been removed, and since there was nothing else currently in clock44xx.c, it too has been removed -- it can always be added back later when there is some content for it. (The OMAP4 clock autogeneration scripts have been updated accordingly.) Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Benoît Cousson <b-cousson@ti.com> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Ranjith Lohithakshan <ranjithl@ti.com> Cc: Tony Lindgren <tony@atomide.com>
127 lines
4.1 KiB
C
127 lines
4.1 KiB
C
/*
|
|
* OMAP3-specific clock framework functions
|
|
*
|
|
* Copyright (C) 2007-2008 Texas Instruments, Inc.
|
|
* Copyright (C) 2007-2010 Nokia Corporation
|
|
*
|
|
* Paul Walmsley
|
|
* Jouni Högander
|
|
*
|
|
* Parts of this code are based on code written by
|
|
* Richard Woodruff, Tony Lindgren, Tuukka Tikkanen, Karthik Dasu,
|
|
* Russell King
|
|
*
|
|
* 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 <plat/clock.h>
|
|
|
|
#include "clock.h"
|
|
#include "clock34xx.h"
|
|
#include "cm.h"
|
|
#include "cm-regbits-34xx.h"
|
|
|
|
/**
|
|
* omap3430es2_clk_ssi_find_idlest - return CM_IDLEST info for SSI
|
|
* @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
|
|
*
|
|
* The OMAP3430ES2 SSI target CM_IDLEST bit is at a different shift
|
|
* from the CM_{I,F}CLKEN bit. Pass back the correct info via
|
|
* @idlest_reg and @idlest_bit. No return value.
|
|
*/
|
|
static void omap3430es2_clk_ssi_find_idlest(struct clk *clk,
|
|
void __iomem **idlest_reg,
|
|
u8 *idlest_bit,
|
|
u8 *idlest_val)
|
|
{
|
|
u32 r;
|
|
|
|
r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20);
|
|
*idlest_reg = (__force void __iomem *)r;
|
|
*idlest_bit = OMAP3430ES2_ST_SSI_IDLE_SHIFT;
|
|
*idlest_val = OMAP34XX_CM_IDLEST_VAL;
|
|
}
|
|
|
|
const struct clkops clkops_omap3430es2_ssi_wait = {
|
|
.enable = omap2_dflt_clk_enable,
|
|
.disable = omap2_dflt_clk_disable,
|
|
.find_idlest = omap3430es2_clk_ssi_find_idlest,
|
|
.find_companion = omap2_clk_dflt_find_companion,
|
|
};
|
|
|
|
/**
|
|
* omap3430es2_clk_dss_usbhost_find_idlest - CM_IDLEST info for DSS, USBHOST
|
|
* @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
|
|
*
|
|
* Some OMAP modules on OMAP3 ES2+ chips have both initiator and
|
|
* target IDLEST bits. For our purposes, we are concerned with the
|
|
* target IDLEST bits, which exist at a different bit position than
|
|
* the *CLKEN bit position for these modules (DSS and USBHOST) (The
|
|
* default find_idlest code assumes that they are at the same
|
|
* position.) No return value.
|
|
*/
|
|
static void omap3430es2_clk_dss_usbhost_find_idlest(struct clk *clk,
|
|
void __iomem **idlest_reg,
|
|
u8 *idlest_bit,
|
|
u8 *idlest_val)
|
|
{
|
|
u32 r;
|
|
|
|
r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20);
|
|
*idlest_reg = (__force void __iomem *)r;
|
|
/* USBHOST_IDLE has same shift */
|
|
*idlest_bit = OMAP3430ES2_ST_DSS_IDLE_SHIFT;
|
|
*idlest_val = OMAP34XX_CM_IDLEST_VAL;
|
|
}
|
|
|
|
const struct clkops clkops_omap3430es2_dss_usbhost_wait = {
|
|
.enable = omap2_dflt_clk_enable,
|
|
.disable = omap2_dflt_clk_disable,
|
|
.find_idlest = omap3430es2_clk_dss_usbhost_find_idlest,
|
|
.find_companion = omap2_clk_dflt_find_companion,
|
|
};
|
|
|
|
/**
|
|
* omap3430es2_clk_hsotgusb_find_idlest - return CM_IDLEST info for HSOTGUSB
|
|
* @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
|
|
*
|
|
* The OMAP3430ES2 HSOTGUSB target CM_IDLEST bit is at a different
|
|
* shift from the CM_{I,F}CLKEN bit. Pass back the correct info via
|
|
* @idlest_reg and @idlest_bit. No return value.
|
|
*/
|
|
static void omap3430es2_clk_hsotgusb_find_idlest(struct clk *clk,
|
|
void __iomem **idlest_reg,
|
|
u8 *idlest_bit,
|
|
u8 *idlest_val)
|
|
{
|
|
u32 r;
|
|
|
|
r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20);
|
|
*idlest_reg = (__force void __iomem *)r;
|
|
*idlest_bit = OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT;
|
|
*idlest_val = OMAP34XX_CM_IDLEST_VAL;
|
|
}
|
|
|
|
const struct clkops clkops_omap3430es2_hsotgusb_wait = {
|
|
.enable = omap2_dflt_clk_enable,
|
|
.disable = omap2_dflt_clk_disable,
|
|
.find_idlest = omap3430es2_clk_hsotgusb_find_idlest,
|
|
.find_companion = omap2_clk_dflt_find_companion,
|
|
};
|