mirror of
https://github.com/torvalds/linux
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124 lines
3 KiB
C
124 lines
3 KiB
C
/*
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* TI's OMAP DSP platform device registration
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*
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* Copyright (C) 2005-2006 Texas Instruments, Inc.
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* Copyright (C) 2009 Nokia Corporation
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*
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* Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/*
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* XXX The function pointers to the PRM/CM functions are incorrect and
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* should be removed. No device driver should be changing PRM/CM bits
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* directly; that's a layering violation -- those bits are the responsibility
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* of the OMAP PM core code.
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*/
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <asm/memblock.h>
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#include "control.h"
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#include "cm2xxx_3xxx.h"
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#include "prm2xxx_3xxx.h"
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#ifdef CONFIG_BRIDGE_DVFS
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#include <plat/omap-pm.h>
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#endif
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#include <plat/dsp.h>
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static struct platform_device *omap_dsp_pdev;
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static struct omap_dsp_platform_data omap_dsp_pdata __initdata = {
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#ifdef CONFIG_BRIDGE_DVFS
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.dsp_set_min_opp = omap_pm_dsp_set_min_opp,
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.dsp_get_opp = omap_pm_dsp_get_opp,
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.cpu_set_freq = omap_pm_cpu_set_freq,
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.cpu_get_freq = omap_pm_cpu_get_freq,
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#endif
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.dsp_prm_read = omap2_prm_read_mod_reg,
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.dsp_prm_write = omap2_prm_write_mod_reg,
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.dsp_prm_rmw_bits = omap2_prm_rmw_mod_reg_bits,
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.dsp_cm_read = omap2_cm_read_mod_reg,
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.dsp_cm_write = omap2_cm_write_mod_reg,
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.dsp_cm_rmw_bits = omap2_cm_rmw_mod_reg_bits,
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.set_bootaddr = omap_ctrl_write_dsp_boot_addr,
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.set_bootmode = omap_ctrl_write_dsp_boot_mode,
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};
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static phys_addr_t omap_dsp_phys_mempool_base;
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void __init omap_dsp_reserve_sdram_memblock(void)
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{
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phys_addr_t size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
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phys_addr_t paddr;
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if (!size)
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return;
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paddr = arm_memblock_steal(size, SZ_1M);
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if (!paddr) {
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pr_err("%s: failed to reserve %llx bytes\n",
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__func__, (unsigned long long)size);
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return;
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}
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omap_dsp_phys_mempool_base = paddr;
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}
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static phys_addr_t omap_dsp_get_mempool_base(void)
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{
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return omap_dsp_phys_mempool_base;
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}
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static int __init omap_dsp_init(void)
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{
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struct platform_device *pdev;
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int err = -ENOMEM;
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struct omap_dsp_platform_data *pdata = &omap_dsp_pdata;
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pdata->phys_mempool_base = omap_dsp_get_mempool_base();
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if (pdata->phys_mempool_base) {
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pdata->phys_mempool_size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
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pr_info("%s: %llx bytes @ %llx\n", __func__,
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(unsigned long long)pdata->phys_mempool_size,
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(unsigned long long)pdata->phys_mempool_base);
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}
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pdev = platform_device_alloc("omap-dsp", -1);
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if (!pdev)
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goto err_out;
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err = platform_device_add_data(pdev, pdata, sizeof(*pdata));
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if (err)
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goto err_out;
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err = platform_device_add(pdev);
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if (err)
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goto err_out;
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omap_dsp_pdev = pdev;
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return 0;
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err_out:
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platform_device_put(pdev);
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return err;
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}
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module_init(omap_dsp_init);
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static void __exit omap_dsp_exit(void)
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{
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platform_device_unregister(omap_dsp_pdev);
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}
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module_exit(omap_dsp_exit);
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MODULE_AUTHOR("Hiroshi DOYU");
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MODULE_DESCRIPTION("TI's OMAP DSP platform device registration");
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MODULE_LICENSE("GPL");
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