arch/arm/mach-omap2/vp3xxx_data.c

Source file repositories/reference/linux-study-clean/arch/arm/mach-omap2/vp3xxx_data.c

File Facts

System
Linux kernel
Corpus path
arch/arm/mach-omap2/vp3xxx_data.c
Extension
.c
Size
2617 bytes
Lines
87
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * OMAP3 Voltage Processor (VP) data
 *
 * Copyright (C) 2007, 2010 Texas Instruments, Inc.
 * Rajendra Nayak <rnayak@ti.com>
 * Lesly A M <x0080970@ti.com>
 * Thara Gopinath <thara@ti.com>
 *
 * Copyright (C) 2008, 2011 Nokia Corporation
 * Kalle Jokiniemi
 * Paul Walmsley
 */

#include <linux/io.h>
#include <linux/err.h>
#include <linux/init.h>

#include "common.h"

#include "prm-regbits-34xx.h"
#include "voltage.h"

#include "vp.h"
#include "prm2xxx_3xxx.h"

static const struct omap_vp_ops omap3_vp_ops = {
	.check_txdone = omap_prm_vp_check_txdone,
	.clear_txdone = omap_prm_vp_clear_txdone,
};

/*
 * VP data common to 34xx/36xx chips
 * XXX This stuff presumably belongs in the vp3xxx.c or vp.c file.
 */
static const struct omap_vp_common omap3_vp_common = {
	.vpconfig_erroroffset_mask = OMAP3430_ERROROFFSET_MASK,
	.vpconfig_errorgain_mask = OMAP3430_ERRORGAIN_MASK,
	.vpconfig_initvoltage_mask = OMAP3430_INITVOLTAGE_MASK,
	.vpconfig_timeouten = OMAP3430_TIMEOUTEN_MASK,
	.vpconfig_initvdd = OMAP3430_INITVDD_MASK,
	.vpconfig_forceupdate = OMAP3430_FORCEUPDATE_MASK,
	.vpconfig_vpenable = OMAP3430_VPENABLE_MASK,
	.vstepmin_smpswaittimemin_shift = OMAP3430_SMPSWAITTIMEMIN_SHIFT,
	.vstepmax_smpswaittimemax_shift = OMAP3430_SMPSWAITTIMEMAX_SHIFT,
	.vstepmin_stepmin_shift = OMAP3430_VSTEPMIN_SHIFT,
	.vstepmax_stepmax_shift = OMAP3430_VSTEPMAX_SHIFT,
	.vlimitto_vddmin_shift = OMAP3430_VDDMIN_SHIFT,
	.vlimitto_vddmax_shift = OMAP3430_VDDMAX_SHIFT,
	.vlimitto_timeout_shift = OMAP3430_TIMEOUT_SHIFT,
	.vpvoltage_mask = OMAP3430_VPVOLTAGE_MASK,

	.ops = &omap3_vp_ops,
};

struct omap_vp_instance omap3_vp_mpu = {
	.id = OMAP3_VP_VDD_MPU_ID,
	.common = &omap3_vp_common,
	.vpconfig = OMAP3_PRM_VP1_CONFIG_OFFSET,
	.vstepmin = OMAP3_PRM_VP1_VSTEPMIN_OFFSET,
	.vstepmax = OMAP3_PRM_VP1_VSTEPMAX_OFFSET,
	.vlimitto = OMAP3_PRM_VP1_VLIMITTO_OFFSET,
	.vstatus = OMAP3_PRM_VP1_STATUS_OFFSET,
	.voltage = OMAP3_PRM_VP1_VOLTAGE_OFFSET,
};

struct omap_vp_instance omap3_vp_core = {
	.id = OMAP3_VP_VDD_CORE_ID,
	.common = &omap3_vp_common,
	.vpconfig = OMAP3_PRM_VP2_CONFIG_OFFSET,
	.vstepmin = OMAP3_PRM_VP2_VSTEPMIN_OFFSET,
	.vstepmax = OMAP3_PRM_VP2_VSTEPMAX_OFFSET,
	.vlimitto = OMAP3_PRM_VP2_VLIMITTO_OFFSET,
	.vstatus = OMAP3_PRM_VP2_STATUS_OFFSET,
	.voltage = OMAP3_PRM_VP2_VOLTAGE_OFFSET,
};

struct omap_vp_param omap3_mpu_vp_data = {
	.vddmin			= OMAP3430_VP1_VLIMITTO_VDDMIN,
	.vddmax			= OMAP3430_VP1_VLIMITTO_VDDMAX,
};

struct omap_vp_param omap3_core_vp_data = {
	.vddmin			= OMAP3430_VP2_VLIMITTO_VDDMIN,
	.vddmax			= OMAP3430_VP2_VLIMITTO_VDDMAX,
};

Annotation

Implementation Notes