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/*
* OMAP gcxxx device initialization
*
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
*
* 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.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/gccore.h>
#include <linux/opp.h>
#include <plat/omap_hwmod.h>
#include <plat/omap_device.h>
#include <plat/omap_gcx.h>
#include <plat/omap-pm.h>
#include "prcm44xx.h"
#include "cminst44xx.h"
#include "cm2_44xx.h"
#include "cm-regbits-44xx.h"
#include "dvfs.h"
static int gcxxx_scale_dev(struct device *dev, unsigned long val);
static int gcxxx_set_l3_bw(struct device *dev, unsigned long val);
static struct omap_gcx_platform_data omap_gcxxx = {
.was_context_lost = omap_pm_was_context_lost,
.scale_dev = gcxxx_scale_dev,
.set_bw = gcxxx_set_l3_bw,
};
struct omap_device_pm_latency omap_gcxxx_latency[] = {
{
.deactivate_func = omap_device_idle_hwmods,
.activate_func = omap_device_enable_hwmods,
.flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
}
};
static int gcxxx_scale_dev(struct device *dev, unsigned long val)
{
return omap_device_scale(dev, dev, val);
}
static int gcxxx_set_l3_bw(struct device *dev, unsigned long val)
{
return omap_pm_set_min_bus_tput(dev, OCP_INITIATOR_AGENT, val);
}
int __init gcxxx_init(void)
{
int retval = 0;
struct omap_hwmod *oh;
struct omap_device *od;
const char *oh_name = "bb2d";
const char *dev_name = "gccore";
if (!cpu_is_omap447x())
return retval;
/*
* Hwmod lookup will fail in case our platform doesn't support the
* hardware spinlock module, so it is safe to run this initcall
* on all omaps
*/
oh = omap_hwmod_lookup(oh_name);
if (oh == NULL)
return -EINVAL;
omap_gcxxx.regbase = omap_hwmod_get_mpu_rt_va(oh);
od = omap_device_build(dev_name, 0, oh, &omap_gcxxx,
sizeof(omap_gcxxx), omap_gcxxx_latency,
ARRAY_SIZE(omap_gcxxx_latency), false);
if (IS_ERR(od)) {
pr_err("Can't build omap_device for %s:%s\n", dev_name,
oh_name);
retval = PTR_ERR(od);
}
return retval;
}
arch_initcall(gcxxx_init);
MODULE_AUTHOR("David Sin");
MODULE_DESCRIPTION("omap gcxxx: omap device registration");
MODULE_LICENSE("GPL v2");
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