[deliverable/linux.git] / arch / arm / mach-omap2 / dsp.c

/*
 * 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 "control.h"
#include "cm2xxx_3xxx.h"
#include "prm2xxx_3xxx.h"
#ifdef CONFIG_BRIDGE_DVFS
#include <plat/omap-pm.h>
#endif

#include <linux/platform_data/dsp-omap.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,

	.set_bootaddr = omap_ctrl_write_dsp_boot_addr,
	.set_bootmode = omap_ctrl_write_dsp_boot_mode,
};

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");
Commit	Line	Data
90173882 FC	1	/*
	2	* TI's OMAP DSP platform device registration
	3	*
	4	* Copyright (C) 2005-2006 Texas Instruments, Inc.
	5	* Copyright (C) 2009 Nokia Corporation
	6	*
	7	* Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License version 2 as
	11	* published by the Free Software Foundation.
	12	*/
	13
59fb659b PW	14	/*
	15	* XXX The function pointers to the PRM/CM functions are incorrect and
	16	* should be removed. No device driver should be changing PRM/CM bits
	17	* directly; that's a layering violation -- those bits are the responsibility
	18	* of the OMAP PM core code.
	19	*/
	20
a1bcc1dc	21	#include <linux/module.h>
90173882	22	#include <linux/platform_device.h>
febe9e02 TL	23
	24	#include <asm/memblock.h>
	25
3d3635c4	26	#include "control.h"
59fb659b PW	27	#include "cm2xxx_3xxx.h"
59fb659b PW	28	#include "prm2xxx_3xxx.h"
90173882 FC	29	#ifdef CONFIG_BRIDGE_DVFS
	30	#include <plat/omap-pm.h>
	31	#endif
	32
2203747c	33	#include <linux/platform_data/dsp-omap.h>
90173882	34
90173882 FC	35	static struct platform_device *omap_dsp_pdev;
	36
	37	static struct omap_dsp_platform_data omap_dsp_pdata __initdata = {
	38	#ifdef CONFIG_BRIDGE_DVFS
	39	.dsp_set_min_opp = omap_pm_dsp_set_min_opp,
	40	.dsp_get_opp = omap_pm_dsp_get_opp,
	41	.cpu_set_freq = omap_pm_cpu_set_freq,
	42	.cpu_get_freq = omap_pm_cpu_get_freq,
	43	#endif
c4d7e58f PW	44	.dsp_prm_read = omap2_prm_read_mod_reg,
	45	.dsp_prm_write = omap2_prm_write_mod_reg,
	46	.dsp_prm_rmw_bits = omap2_prm_rmw_mod_reg_bits,
	47	.dsp_cm_read = omap2_cm_read_mod_reg,
	48	.dsp_cm_write = omap2_cm_write_mod_reg,
	49	.dsp_cm_rmw_bits = omap2_cm_rmw_mod_reg_bits,
3d3635c4 ORL	50
	51	.set_bootaddr = omap_ctrl_write_dsp_boot_addr,
	52	.set_bootmode = omap_ctrl_write_dsp_boot_mode,
90173882 FC	53	};
90173882 FC	54
7f28427b TL	55	static phys_addr_t omap_dsp_phys_mempool_base;
	56
	57	void __init omap_dsp_reserve_sdram_memblock(void)
	58	{
	59	phys_addr_t size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
	60	phys_addr_t paddr;
	61
	62	if (!size)
	63	return;
	64
	65	paddr = arm_memblock_steal(size, SZ_1M);
	66	if (!paddr) {
	67	pr_err("%s: failed to reserve %llx bytes\n",
	68	__func__, (unsigned long long)size);
	69	return;
	70	}
	71
	72	omap_dsp_phys_mempool_base = paddr;
	73	}
	74
	75	static phys_addr_t omap_dsp_get_mempool_base(void)
	76	{
	77	return omap_dsp_phys_mempool_base;
	78	}
	79
90173882 FC	80	static int __init omap_dsp_init(void)
	81	{
	82	struct platform_device *pdev;
	83	int err = -ENOMEM;
	84	struct omap_dsp_platform_data *pdata = &omap_dsp_pdata;
	85
	86	pdata->phys_mempool_base = omap_dsp_get_mempool_base();
	87
	88	if (pdata->phys_mempool_base) {
	89	pdata->phys_mempool_size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
28ee793e FC	90	pr_info("%s: %llx bytes @ %llx\n", __func__,
	91	(unsigned long long)pdata->phys_mempool_size,
	92	(unsigned long long)pdata->phys_mempool_base);
90173882 FC	93	}
	94
	95	pdev = platform_device_alloc("omap-dsp", -1);
	96	if (!pdev)
	97	goto err_out;
	98
	99	err = platform_device_add_data(pdev, pdata, sizeof(*pdata));
	100	if (err)
	101	goto err_out;
	102
	103	err = platform_device_add(pdev);
	104	if (err)
	105	goto err_out;
	106
	107	omap_dsp_pdev = pdev;
	108	return 0;
	109
	110	err_out:
	111	platform_device_put(pdev);
	112	return err;
	113	}
	114	module_init(omap_dsp_init);
	115
	116	static void __exit omap_dsp_exit(void)
	117	{
	118	platform_device_unregister(omap_dsp_pdev);
	119	}
	120	module_exit(omap_dsp_exit);
	121
	122	MODULE_AUTHOR("Hiroshi DOYU");
	123	MODULE_DESCRIPTION("TI's OMAP DSP platform device registration");
	124	MODULE_LICENSE("GPL");