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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 | ||
3d3635c4 | 26 | #include "control.h" |
59fb659b PW |
27 | #include "cm2xxx_3xxx.h" |
28 | #include "prm2xxx_3xxx.h" | |
ce9df0b0 | 29 | #ifdef CONFIG_TIDSPBRIDGE_DVFS |
1d5aef49 | 30 | #include "omap-pm.h" |
90173882 | 31 | #endif |
526570cb | 32 | #include "soc.h" |
90173882 | 33 | |
2203747c | 34 | #include <linux/platform_data/dsp-omap.h> |
90173882 | 35 | |
90173882 FC |
36 | static struct platform_device *omap_dsp_pdev; |
37 | ||
38 | static struct omap_dsp_platform_data omap_dsp_pdata __initdata = { | |
ce9df0b0 | 39 | #ifdef CONFIG_TIDSPBRIDGE_DVFS |
90173882 FC |
40 | .dsp_set_min_opp = omap_pm_dsp_set_min_opp, |
41 | .dsp_get_opp = omap_pm_dsp_get_opp, | |
42 | .cpu_set_freq = omap_pm_cpu_set_freq, | |
43 | .cpu_get_freq = omap_pm_cpu_get_freq, | |
44 | #endif | |
c4d7e58f PW |
45 | .dsp_prm_read = omap2_prm_read_mod_reg, |
46 | .dsp_prm_write = omap2_prm_write_mod_reg, | |
47 | .dsp_prm_rmw_bits = omap2_prm_rmw_mod_reg_bits, | |
48 | .dsp_cm_read = omap2_cm_read_mod_reg, | |
49 | .dsp_cm_write = omap2_cm_write_mod_reg, | |
50 | .dsp_cm_rmw_bits = omap2_cm_rmw_mod_reg_bits, | |
3d3635c4 ORL |
51 | |
52 | .set_bootaddr = omap_ctrl_write_dsp_boot_addr, | |
53 | .set_bootmode = omap_ctrl_write_dsp_boot_mode, | |
90173882 FC |
54 | }; |
55 | ||
7f28427b TL |
56 | static phys_addr_t omap_dsp_phys_mempool_base; |
57 | ||
58 | void __init omap_dsp_reserve_sdram_memblock(void) | |
59 | { | |
60 | phys_addr_t size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE; | |
61 | phys_addr_t paddr; | |
62 | ||
526570cb SA |
63 | if (!cpu_is_omap34xx()) |
64 | return; | |
65 | ||
7f28427b TL |
66 | if (!size) |
67 | return; | |
68 | ||
69 | paddr = arm_memblock_steal(size, SZ_1M); | |
70 | if (!paddr) { | |
71 | pr_err("%s: failed to reserve %llx bytes\n", | |
72 | __func__, (unsigned long long)size); | |
73 | return; | |
74 | } | |
75 | ||
76 | omap_dsp_phys_mempool_base = paddr; | |
77 | } | |
78 | ||
79 | static phys_addr_t omap_dsp_get_mempool_base(void) | |
80 | { | |
81 | return omap_dsp_phys_mempool_base; | |
82 | } | |
83 | ||
90173882 FC |
84 | static int __init omap_dsp_init(void) |
85 | { | |
86 | struct platform_device *pdev; | |
87 | int err = -ENOMEM; | |
88 | struct omap_dsp_platform_data *pdata = &omap_dsp_pdata; | |
89 | ||
526570cb SA |
90 | if (!cpu_is_omap34xx()) |
91 | return 0; | |
92 | ||
90173882 FC |
93 | pdata->phys_mempool_base = omap_dsp_get_mempool_base(); |
94 | ||
95 | if (pdata->phys_mempool_base) { | |
96 | pdata->phys_mempool_size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE; | |
28ee793e FC |
97 | pr_info("%s: %llx bytes @ %llx\n", __func__, |
98 | (unsigned long long)pdata->phys_mempool_size, | |
99 | (unsigned long long)pdata->phys_mempool_base); | |
90173882 FC |
100 | } |
101 | ||
102 | pdev = platform_device_alloc("omap-dsp", -1); | |
103 | if (!pdev) | |
104 | goto err_out; | |
105 | ||
106 | err = platform_device_add_data(pdev, pdata, sizeof(*pdata)); | |
107 | if (err) | |
108 | goto err_out; | |
109 | ||
110 | err = platform_device_add(pdev); | |
111 | if (err) | |
112 | goto err_out; | |
113 | ||
114 | omap_dsp_pdev = pdev; | |
115 | return 0; | |
116 | ||
117 | err_out: | |
118 | platform_device_put(pdev); | |
119 | return err; | |
120 | } | |
121 | module_init(omap_dsp_init); | |
122 | ||
123 | static void __exit omap_dsp_exit(void) | |
124 | { | |
526570cb SA |
125 | if (!cpu_is_omap34xx()) |
126 | return; | |
127 | ||
90173882 FC |
128 | platform_device_unregister(omap_dsp_pdev); |
129 | } | |
130 | module_exit(omap_dsp_exit); | |
131 | ||
132 | MODULE_AUTHOR("Hiroshi DOYU"); | |
133 | MODULE_DESCRIPTION("TI's OMAP DSP platform device registration"); | |
134 | MODULE_LICENSE("GPL"); |