diff options
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/dsp.c | 85 | ||||
| -rw-r--r-- | arch/arm/plat-omap/common.c | 2 | ||||
| -rw-r--r-- | arch/arm/plat-omap/devices.c | 30 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/dsp.h | 31 |
5 files changed, 152 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 88d3a1e..58288a4 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -102,6 +102,10 @@ obj-y += $(iommu-m) $(iommu-y) i2c-omap-$(CONFIG_I2C_OMAP) := i2c.o obj-y += $(i2c-omap-m) $(i2c-omap-y) +ifneq ($(CONFIG_TIDSPBRIDGE),) +obj-y += dsp.o +endif + # Specific board support obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o obj-$(CONFIG_MACH_OMAP_H4) += board-h4.o diff --git a/arch/arm/mach-omap2/dsp.c b/arch/arm/mach-omap2/dsp.c new file mode 100644 index 0000000..6feeeae --- /dev/null +++ b/arch/arm/mach-omap2/dsp.c @@ -0,0 +1,85 @@ +/* + * 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. + */ + +#include <linux/platform_device.h> +#include "prm.h" +#include "cm.h" +#ifdef CONFIG_BRIDGE_DVFS +#include <plat/omap-pm.h> +#endif + +#include <plat/dsp.h> + +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 = prm_read_mod_reg, + .dsp_prm_write = prm_write_mod_reg, + .dsp_prm_rmw_bits = prm_rmw_mod_reg_bits, + .dsp_cm_read = cm_read_mod_reg, + .dsp_cm_write = cm_write_mod_reg, + .dsp_cm_rmw_bits = 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"); diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index 3008e71..57205a4 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -37,6 +37,7 @@ #include <plat/fpga.h> #include <plat/serial.h> #include <plat/vram.h> +#include <plat/dsp.h> #include <plat/clock.h> @@ -87,6 +88,7 @@ void __init omap_reserve(void) { omapfb_reserve_sdram_memblock(); omap_vram_reserve_sdram_memblock(); + omap_dsp_reserve_sdram_memblock(); } /* diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c index d1920be..4c8f9b9 100644 --- a/arch/arm/plat-omap/devices.c +++ b/arch/arm/plat-omap/devices.c @@ -15,6 +15,7 @@ #include <linux/platform_device.h> #include <linux/io.h> #include <linux/slab.h> +#include <linux/memblock.h> #include <mach/hardware.h> #include <asm/mach-types.h> @@ -272,6 +273,35 @@ static void omap_init_wdt(void) static inline void omap_init_wdt(void) {} #endif +#if defined(CONFIG_TIDSPBRIDGE) || defined(CONFIG_TIDSPBRIDGE_MODULE) + +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 = __memblock_alloc_base(size, SZ_1M, MEMBLOCK_REAL_LIMIT); + if (!paddr) { + pr_err("%s: failed to reserve %x bytes\n", + __func__, size); + return; + } + + omap_dsp_phys_mempool_base = paddr; +} + +phys_addr_t omap_dsp_get_mempool_base(void) +{ + return omap_dsp_phys_mempool_base; +} +EXPORT_SYMBOL(omap_dsp_get_mempool_base); +#endif + /* * This gets called after board-specific INIT_MACHINE, and initializes most * on-chip peripherals accessible on this board (except for few like USB): diff --git a/arch/arm/plat-omap/include/plat/dsp.h b/arch/arm/plat-omap/include/plat/dsp.h new file mode 100644 index 0000000..9c604b3 --- /dev/null +++ b/arch/arm/plat-omap/include/plat/dsp.h @@ -0,0 +1,31 @@ +#ifndef __OMAP_DSP_H__ +#define __OMAP_DSP_H__ + +#include <linux/types.h> + +struct omap_dsp_platform_data { + void (*dsp_set_min_opp) (u8 opp_id); + u8 (*dsp_get_opp) (void); + void (*cpu_set_freq) (unsigned long f); + unsigned long (*cpu_get_freq) (void); + unsigned long mpu_speed[6]; + + /* functions to write and read PRCM registers */ + void (*dsp_prm_write)(u32, s16 , u16); + u32 (*dsp_prm_read)(s16 , u16); + u32 (*dsp_prm_rmw_bits)(u32, u32, s16, s16); + void (*dsp_cm_write)(u32, s16 , u16); + u32 (*dsp_cm_read)(s16 , u16); + u32 (*dsp_cm_rmw_bits)(u32, u32, s16, s16); + + phys_addr_t phys_mempool_base; + phys_addr_t phys_mempool_size; +}; + +#if defined(CONFIG_TIDSPBRIDGE) || defined(CONFIG_TIDSPBRIDGE_MODULE) +extern void omap_dsp_reserve_sdram_memblock(void); +#else +static inline void omap_dsp_reserve_sdram_memblock(void) { } +#endif + +#endif |
