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>
23 #include "cm2xxx_3xxx.h"
24 #include "prm2xxx_3xxx.h"
25 #ifdef CONFIG_BRIDGE_DVFS
26 #include <plat/omap-pm.h>
31 static struct platform_device *omap_dsp_pdev;
33 static struct omap_dsp_platform_data omap_dsp_pdata __initdata = {
34 #ifdef CONFIG_BRIDGE_DVFS
35 .dsp_set_min_opp = omap_pm_dsp_set_min_opp,
36 .dsp_get_opp = omap_pm_dsp_get_opp,
37 .cpu_set_freq = omap_pm_cpu_set_freq,
38 .cpu_get_freq = omap_pm_cpu_get_freq,
40 .dsp_prm_read = omap2_prm_read_mod_reg,
41 .dsp_prm_write = omap2_prm_write_mod_reg,
42 .dsp_prm_rmw_bits = omap2_prm_rmw_mod_reg_bits,
43 .dsp_cm_read = omap2_cm_read_mod_reg,
44 .dsp_cm_write = omap2_cm_write_mod_reg,
45 .dsp_cm_rmw_bits = omap2_cm_rmw_mod_reg_bits,
48 static phys_addr_t omap_dsp_phys_mempool_base;
50 void __init omap_dsp_reserve_sdram_memblock(void)
52 phys_addr_t size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
58 paddr = arm_memblock_steal(size, SZ_1M);
60 pr_err("%s: failed to reserve %llx bytes\n",
61 __func__, (unsigned long long)size);
65 omap_dsp_phys_mempool_base = paddr;
68 static phys_addr_t omap_dsp_get_mempool_base(void)
70 return omap_dsp_phys_mempool_base;
73 static int __init omap_dsp_init(void)
75 struct platform_device *pdev;
77 struct omap_dsp_platform_data *pdata = &omap_dsp_pdata;
79 pdata->phys_mempool_base = omap_dsp_get_mempool_base();
81 if (pdata->phys_mempool_base) {
82 pdata->phys_mempool_size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
83 pr_info("%s: %llx bytes @ %llx\n", __func__,
84 (unsigned long long)pdata->phys_mempool_size,
85 (unsigned long long)pdata->phys_mempool_base);
88 pdev = platform_device_alloc("omap-dsp", -1);
92 err = platform_device_add_data(pdev, pdata, sizeof(*pdata));
96 err = platform_device_add(pdev);
100 omap_dsp_pdev = pdev;
104 platform_device_put(pdev);
107 module_init(omap_dsp_init);
109 static void __exit omap_dsp_exit(void)
111 platform_device_unregister(omap_dsp_pdev);
113 module_exit(omap_dsp_exit);
115 MODULE_AUTHOR("Hiroshi DOYU");
116 MODULE_DESCRIPTION("TI's OMAP DSP platform device registration");
117 MODULE_LICENSE("GPL");