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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
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
21#include <linux/module.h>
22#include <linux/platform_device.h>
23
24#include <asm/memblock.h>
25
26#include "cm2xxx_3xxx.h"
27#include "prm2xxx_3xxx.h"
28#ifdef CONFIG_BRIDGE_DVFS
29#include <plat/omap-pm.h>
30#endif
31
32#include <plat/dsp.h>
33
34static struct platform_device *omap_dsp_pdev;
35
36static struct omap_dsp_platform_data omap_dsp_pdata __initdata = {
37#ifdef CONFIG_BRIDGE_DVFS
38 .dsp_set_min_opp = omap_pm_dsp_set_min_opp,
39 .dsp_get_opp = omap_pm_dsp_get_opp,
40 .cpu_set_freq = omap_pm_cpu_set_freq,
41 .cpu_get_freq = omap_pm_cpu_get_freq,
42#endif
43 .dsp_prm_read = omap2_prm_read_mod_reg,
44 .dsp_prm_write = omap2_prm_write_mod_reg,
45 .dsp_prm_rmw_bits = omap2_prm_rmw_mod_reg_bits,
46 .dsp_cm_read = omap2_cm_read_mod_reg,
47 .dsp_cm_write = omap2_cm_write_mod_reg,
48 .dsp_cm_rmw_bits = omap2_cm_rmw_mod_reg_bits,
49};
50
51static phys_addr_t omap_dsp_phys_mempool_base;
52
53void __init omap_dsp_reserve_sdram_memblock(void)
54{
55 phys_addr_t size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
56 phys_addr_t paddr;
57
58 if (!size)
59 return;
60
61 paddr = arm_memblock_steal(size, SZ_1M);
62 if (!paddr) {
63 pr_err("%s: failed to reserve %llx bytes\n",
64 __func__, (unsigned long long)size);
65 return;
66 }
67
68 omap_dsp_phys_mempool_base = paddr;
69}
70
71static phys_addr_t omap_dsp_get_mempool_base(void)
72{
73 return omap_dsp_phys_mempool_base;
74}
75
76static int __init omap_dsp_init(void)
77{
78 struct platform_device *pdev;
79 int err = -ENOMEM;
80 struct omap_dsp_platform_data *pdata = &omap_dsp_pdata;
81
82 pdata->phys_mempool_base = omap_dsp_get_mempool_base();
83
84 if (pdata->phys_mempool_base) {
85 pdata->phys_mempool_size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
86 pr_info("%s: %llx bytes @ %llx\n", __func__,
87 (unsigned long long)pdata->phys_mempool_size,
88 (unsigned long long)pdata->phys_mempool_base);
89 }
90
91 pdev = platform_device_alloc("omap-dsp", -1);
92 if (!pdev)
93 goto err_out;
94
95 err = platform_device_add_data(pdev, pdata, sizeof(*pdata));
96 if (err)
97 goto err_out;
98
99 err = platform_device_add(pdev);
100 if (err)
101 goto err_out;
102
103 omap_dsp_pdev = pdev;
104 return 0;
105
106err_out:
107 platform_device_put(pdev);
108 return err;
109}
110module_init(omap_dsp_init);
111
112static void __exit omap_dsp_exit(void)
113{
114 platform_device_unregister(omap_dsp_pdev);
115}
116module_exit(omap_dsp_exit);
117
118MODULE_AUTHOR("Hiroshi DOYU");
119MODULE_DESCRIPTION("TI's OMAP DSP platform device registration");
120MODULE_LICENSE("GPL");
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
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
21#include <linux/platform_device.h>
22#include "cm2xxx_3xxx.h"
23#include "prm2xxx_3xxx.h"
24#ifdef CONFIG_BRIDGE_DVFS
25#include <plat/omap-pm.h>
26#endif
27
28#include <plat/dsp.h>
29
30extern phys_addr_t omap_dsp_get_mempool_base(void);
31
32static struct platform_device *omap_dsp_pdev;
33
34static struct omap_dsp_platform_data omap_dsp_pdata __initdata = {
35#ifdef CONFIG_BRIDGE_DVFS
36 .dsp_set_min_opp = omap_pm_dsp_set_min_opp,
37 .dsp_get_opp = omap_pm_dsp_get_opp,
38 .cpu_set_freq = omap_pm_cpu_set_freq,
39 .cpu_get_freq = omap_pm_cpu_get_freq,
40#endif
41 .dsp_prm_read = omap2_prm_read_mod_reg,
42 .dsp_prm_write = omap2_prm_write_mod_reg,
43 .dsp_prm_rmw_bits = omap2_prm_rmw_mod_reg_bits,
44 .dsp_cm_read = omap2_cm_read_mod_reg,
45 .dsp_cm_write = omap2_cm_write_mod_reg,
46 .dsp_cm_rmw_bits = omap2_cm_rmw_mod_reg_bits,
47};
48
49static int __init omap_dsp_init(void)
50{
51 struct platform_device *pdev;
52 int err = -ENOMEM;
53 struct omap_dsp_platform_data *pdata = &omap_dsp_pdata;
54
55 pdata->phys_mempool_base = omap_dsp_get_mempool_base();
56
57 if (pdata->phys_mempool_base) {
58 pdata->phys_mempool_size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
59 pr_info("%s: %x bytes @ %x\n", __func__,
60 pdata->phys_mempool_size, pdata->phys_mempool_base);
61 }
62
63 pdev = platform_device_alloc("omap-dsp", -1);
64 if (!pdev)
65 goto err_out;
66
67 err = platform_device_add_data(pdev, pdata, sizeof(*pdata));
68 if (err)
69 goto err_out;
70
71 err = platform_device_add(pdev);
72 if (err)
73 goto err_out;
74
75 omap_dsp_pdev = pdev;
76 return 0;
77
78err_out:
79 platform_device_put(pdev);
80 return err;
81}
82module_init(omap_dsp_init);
83
84static void __exit omap_dsp_exit(void)
85{
86 platform_device_unregister(omap_dsp_pdev);
87}
88module_exit(omap_dsp_exit);
89
90MODULE_AUTHOR("Hiroshi DOYU");
91MODULE_DESCRIPTION("TI's OMAP DSP platform device registration");
92MODULE_LICENSE("GPL");