aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/dsp.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-omap2/dsp.c')
-rw-r--r--arch/arm/mach-omap2/dsp.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/dsp.c b/arch/arm/mach-omap2/dsp.c
new file mode 100644
index 000000000000..6feeeae6c21b
--- /dev/null
+++ b/arch/arm/mach-omap2/dsp.c
@@ -0,0 +1,85 @@
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#include <linux/platform_device.h>
15#include "prm.h"
16#include "cm.h"
17#ifdef CONFIG_BRIDGE_DVFS
18#include <plat/omap-pm.h>
19#endif
20
21#include <plat/dsp.h>
22
23extern phys_addr_t omap_dsp_get_mempool_base(void);
24
25static struct platform_device *omap_dsp_pdev;
26
27static struct omap_dsp_platform_data omap_dsp_pdata __initdata = {
28#ifdef CONFIG_BRIDGE_DVFS
29 .dsp_set_min_opp = omap_pm_dsp_set_min_opp,
30 .dsp_get_opp = omap_pm_dsp_get_opp,
31 .cpu_set_freq = omap_pm_cpu_set_freq,
32 .cpu_get_freq = omap_pm_cpu_get_freq,
33#endif
34 .dsp_prm_read = prm_read_mod_reg,
35 .dsp_prm_write = prm_write_mod_reg,
36 .dsp_prm_rmw_bits = prm_rmw_mod_reg_bits,
37 .dsp_cm_read = cm_read_mod_reg,
38 .dsp_cm_write = cm_write_mod_reg,
39 .dsp_cm_rmw_bits = cm_rmw_mod_reg_bits,
40};
41
42static int __init omap_dsp_init(void)
43{
44 struct platform_device *pdev;
45 int err = -ENOMEM;
46 struct omap_dsp_platform_data *pdata = &omap_dsp_pdata;
47
48 pdata->phys_mempool_base = omap_dsp_get_mempool_base();
49
50 if (pdata->phys_mempool_base) {
51 pdata->phys_mempool_size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
52 pr_info("%s: %x bytes @ %x\n", __func__,
53 pdata->phys_mempool_size, pdata->phys_mempool_base);
54 }
55
56 pdev = platform_device_alloc("omap-dsp", -1);
57 if (!pdev)
58 goto err_out;
59
60 err = platform_device_add_data(pdev, pdata, sizeof(*pdata));
61 if (err)
62 goto err_out;
63
64 err = platform_device_add(pdev);
65 if (err)
66 goto err_out;
67
68 omap_dsp_pdev = pdev;
69 return 0;
70
71err_out:
72 platform_device_put(pdev);
73 return err;
74}
75module_init(omap_dsp_init);
76
77static void __exit omap_dsp_exit(void)
78{
79 platform_device_unregister(omap_dsp_pdev);
80}
81module_exit(omap_dsp_exit);
82
83MODULE_AUTHOR("Hiroshi DOYU");
84MODULE_DESCRIPTION("TI's OMAP DSP platform device registration");
85MODULE_LICENSE("GPL");