Commit | Line | Data |
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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 | ||
59fb659b PW |
26 | #include "cm2xxx_3xxx.h" |
27 | #include "prm2xxx_3xxx.h" | |
90173882 FC |
28 | #ifdef CONFIG_BRIDGE_DVFS |
29 | #include <plat/omap-pm.h> | |
30 | #endif | |
31 | ||
32 | #include <plat/dsp.h> | |
33 | ||
90173882 FC |
34 | static struct platform_device *omap_dsp_pdev; |
35 | ||
36 | static 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 | |
c4d7e58f PW |
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, | |
90173882 FC |
49 | }; |
50 | ||
7f28427b TL |
51 | static phys_addr_t omap_dsp_phys_mempool_base; |
52 | ||
53 | void __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 | ||
71 | static phys_addr_t omap_dsp_get_mempool_base(void) | |
72 | { | |
73 | return omap_dsp_phys_mempool_base; | |
74 | } | |
75 | ||
90173882 FC |
76 | static 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; | |
28ee793e FC |
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); | |
90173882 FC |
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 | ||
106 | err_out: | |
107 | platform_device_put(pdev); | |
108 | return err; | |
109 | } | |
110 | module_init(omap_dsp_init); | |
111 | ||
112 | static void __exit omap_dsp_exit(void) | |
113 | { | |
114 | platform_device_unregister(omap_dsp_pdev); | |
115 | } | |
116 | module_exit(omap_dsp_exit); | |
117 | ||
118 | MODULE_AUTHOR("Hiroshi DOYU"); | |
119 | MODULE_DESCRIPTION("TI's OMAP DSP platform device registration"); | |
120 | MODULE_LICENSE("GPL"); |