187e3e06e8
Modify the board files to use the SoC-specific system restart functions. At this point it's possible to remove omap_prcm_restart() from mach-omap2/prcm.c. While removing the prototypes for the now-unused restart functions, clean up a few more obsolete prototypes in mach-omap2/clock.h. Signed-off-by: Paul Walmsley <paul@pwsan.com> Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
122 lines
3.1 KiB
C
122 lines
3.1 KiB
C
/*
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* linux/arch/arm/mach-omap2/prcm.c
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*
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* OMAP 24xx Power Reset and Clock Management (PRCM) functions
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*
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* Copyright (C) 2005 Nokia Corporation
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*
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* Written by Tony Lindgren <tony.lindgren@nokia.com>
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*
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* Copyright (C) 2007 Texas Instruments, Inc.
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* Rajendra Nayak <rnayak@ti.com>
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*
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* Some pieces of code Copyright (C) 2005 Texas Instruments, Inc.
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* Upgraded with OMAP4 support by Abhijit Pagare <abhijitpagare@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <linux/delay.h>
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#include <linux/export.h>
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#include "common.h"
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#include <plat/prcm.h>
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#include "soc.h"
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#include "clock.h"
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#include "clock2xxx.h"
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#include "cm2xxx_3xxx.h"
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#include "prm2xxx_3xxx.h"
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#include "prm44xx.h"
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#include "prminst44xx.h"
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#include "cminst44xx.h"
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#include "prm-regbits-24xx.h"
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#include "prm-regbits-44xx.h"
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#include "control.h"
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void __iomem *prm_base;
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void __iomem *cm_base;
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void __iomem *cm2_base;
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void __iomem *prcm_mpu_base;
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#define MAX_MODULE_ENABLE_WAIT 100000
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/**
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* omap2_cm_wait_idlest - wait for IDLEST bit to indicate module readiness
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* @reg: physical address of module IDLEST register
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* @mask: value to mask against to determine if the module is active
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* @idlest: idle state indicator (0 or 1) for the clock
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* @name: name of the clock (for printk)
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*
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* Returns 1 if the module indicated readiness in time, or 0 if it
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* failed to enable in roughly MAX_MODULE_ENABLE_WAIT microseconds.
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*
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* XXX This function is deprecated. It should be removed once the
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* hwmod conversion is complete.
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*/
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int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, u8 idlest,
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const char *name)
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{
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int i = 0;
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int ena = 0;
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if (idlest)
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ena = 0;
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else
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ena = mask;
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/* Wait for lock */
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omap_test_timeout(((__raw_readl(reg) & mask) == ena),
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MAX_MODULE_ENABLE_WAIT, i);
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if (i < MAX_MODULE_ENABLE_WAIT)
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pr_debug("cm: Module associated with clock %s ready after %d loops\n",
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name, i);
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else
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pr_err("cm: Module associated with clock %s didn't enable in %d tries\n",
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name, MAX_MODULE_ENABLE_WAIT);
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return (i < MAX_MODULE_ENABLE_WAIT) ? 1 : 0;
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};
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void __init omap2_set_globals_prcm(void __iomem *prm, void __iomem *cm,
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void __iomem *cm2, void __iomem *prcm_mpu)
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{
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prm_base = prm;
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cm_base = cm;
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cm2_base = cm2;
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prcm_mpu_base = prcm_mpu;
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if (cpu_is_omap44xx() || soc_is_omap54xx()) {
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omap_prm_base_init();
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omap_cm_base_init();
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}
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}
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/*
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* Stubbed functions so that common files continue to build when
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* custom builds are used
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* XXX These are temporary and should be removed at the earliest possible
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* opportunity
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*/
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int __weak omap4_cminst_wait_module_idle(u8 part, u16 inst, s16 cdoffs,
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u16 clkctrl_offs)
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{
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return 0;
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}
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void __weak omap4_cminst_module_enable(u8 mode, u8 part, u16 inst,
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s16 cdoffs, u16 clkctrl_offs)
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{
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}
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void __weak omap4_cminst_module_disable(u8 part, u16 inst, s16 cdoffs,
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u16 clkctrl_offs)
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{
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}
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