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/*
* TI's OMAP DSP platform device registration
*
* Copyright (C) 2005-2006 Texas Instruments, Inc.
* Copyright (C) 2009 Nokia Corporation
*
* Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.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.
*/
/*
* XXX The function pointers to the PRM/CM functions are incorrect and
* should be removed. No device driver should be changing PRM/CM bits
* directly; that's a layering violation -- those bits are the responsibility
* of the OMAP PM core code.
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <asm/memblock.h>
#include "cm2xxx_3xxx.h"
#include "prm2xxx_3xxx.h"
#ifdef CONFIG_BRIDGE_DVFS
#include <plat/omap-pm.h>
#endif
#include <plat/dsp.h>
static struct platform_device *omap_dsp_pdev;
static struct omap_dsp_platform_data omap_dsp_pdata __initdata = {
#ifdef CONFIG_BRIDGE_DVFS
.dsp_set_min_opp = omap_pm_dsp_set_min_opp,
.dsp_get_opp = omap_pm_dsp_get_opp,
.cpu_set_freq = omap_pm_cpu_set_freq,
.cpu_get_freq = omap_pm_cpu_get_freq,
#endif
.dsp_prm_read = omap2_prm_read_mod_reg,
.dsp_prm_write = omap2_prm_write_mod_reg,
.dsp_prm_rmw_bits = omap2_prm_rmw_mod_reg_bits,
.dsp_cm_read = omap2_cm_read_mod_reg,
.dsp_cm_write = omap2_cm_write_mod_reg,
.dsp_cm_rmw_bits = omap2_cm_rmw_mod_reg_bits,
};
static phys_addr_t omap_dsp_phys_mempool_base;
void __init omap_dsp_reserve_sdram_memblock(void)
{
phys_addr_t size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
phys_addr_t paddr;
if (!size)
return;
paddr = arm_memblock_steal(size, SZ_1M);
if (!paddr) {
pr_err("%s: failed to reserve %llx bytes\n",
__func__, (unsigned long long)size);
return;
}
omap_dsp_phys_mempool_base = paddr;
}
static phys_addr_t omap_dsp_get_mempool_base(void)
{
return omap_dsp_phys_mempool_base;
}
static int __init omap_dsp_init(void)
{
struct platform_device *pdev;
int err = -ENOMEM;
struct omap_dsp_platform_data *pdata = &omap_dsp_pdata;
pdata->phys_mempool_base = omap_dsp_get_mempool_base();
if (pdata->phys_mempool_base) {
pdata->phys_mempool_size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
pr_info("%s: %llx bytes @ %llx\n", __func__,
(unsigned long long)pdata->phys_mempool_size,
(unsigned long long)pdata->phys_mempool_base);
}
pdev = platform_device_alloc("omap-dsp", -1);
if (!pdev)
goto err_out;
err = platform_device_add_data(pdev, pdata, sizeof(*pdata));
if (err)
goto err_out;
err = platform_device_add(pdev);
if (err)
goto err_out;
omap_dsp_pdev = pdev;
return 0;
err_out:
platform_device_put(pdev);
return err;
}
module_init(omap_dsp_init);
static void __exit omap_dsp_exit(void)
{
platform_device_unregister(omap_dsp_pdev);
}
module_exit(omap_dsp_exit);
MODULE_AUTHOR("Hiroshi DOYU");
MODULE_DESCRIPTION("TI's OMAP DSP platform device registration");
MODULE_LICENSE("GPL");
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