2 * TI's OMAP DSP platform device registration
4 * Copyright (C) 2005-2006 Texas Instruments, Inc.
5 * Copyright (C) 2009 Nokia Corporation
7 * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
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.
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.
21 #include <linux/module.h>
22 #include <linux/platform_device.h>
24 #include <asm/memblock.h>
26 #include "cm2xxx_3xxx.h"
27 #include "prm2xxx_3xxx.h"
28 #ifdef CONFIG_BRIDGE_DVFS
29 #include <plat/omap-pm.h>
34 static struct platform_device
*omap_dsp_pdev
;
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
,
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
,
51 static phys_addr_t omap_dsp_phys_mempool_base
;
53 void __init
omap_dsp_reserve_sdram_memblock(void)
55 phys_addr_t size
= CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE
;
61 paddr
= arm_memblock_steal(size
, SZ_1M
);
63 pr_err("%s: failed to reserve %llx bytes\n",
64 __func__
, (unsigned long long)size
);
68 omap_dsp_phys_mempool_base
= paddr
;
71 static phys_addr_t
omap_dsp_get_mempool_base(void)
73 return omap_dsp_phys_mempool_base
;
76 static int __init
omap_dsp_init(void)
78 struct platform_device
*pdev
;
80 struct omap_dsp_platform_data
*pdata
= &omap_dsp_pdata
;
82 pdata
->phys_mempool_base
= omap_dsp_get_mempool_base();
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
);
91 pdev
= platform_device_alloc("omap-dsp", -1);
95 err
= platform_device_add_data(pdev
, pdata
, sizeof(*pdata
));
99 err
= platform_device_add(pdev
);
103 omap_dsp_pdev
= pdev
;
107 platform_device_put(pdev
);
110 module_init(omap_dsp_init
);
112 static void __exit
omap_dsp_exit(void)
114 platform_device_unregister(omap_dsp_pdev
);
116 module_exit(omap_dsp_exit
);
118 MODULE_AUTHOR("Hiroshi DOYU");
119 MODULE_DESCRIPTION("TI's OMAP DSP platform device registration");
120 MODULE_LICENSE("GPL");