From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/mach-omap2/dsp.c | 92 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 arch/arm/mach-omap2/dsp.c (limited to 'arch/arm/mach-omap2/dsp.c') diff --git a/arch/arm/mach-omap2/dsp.c b/arch/arm/mach-omap2/dsp.c new file mode 100644 index 00000000..911cd2e6 --- /dev/null +++ b/arch/arm/mach-omap2/dsp.c @@ -0,0 +1,92 @@ +/* + * TI's OMAP DSP platform device registration + * + * Copyright (C) 2005-2006 Texas Instruments, Inc. + * Copyright (C) 2009 Nokia Corporation + * + * Written by Hiroshi DOYU + * + * 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 +#include "cm2xxx_3xxx.h" +#include "prm2xxx_3xxx.h" +#ifdef CONFIG_BRIDGE_DVFS +#include +#endif + +#include + +extern phys_addr_t omap_dsp_get_mempool_base(void); + +static struct platform_device *omap_dsp_pdev; + +static struct omap_dsp_platform_data omap_dsp_pdata __initdata = { +#ifdef CONFIG_BRIDGE_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, +}; + +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: %x bytes @ %x\n", __func__, + pdata->phys_mempool_size, 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"); -- cgit v1.2.3