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