# # DSP Bridge Driver Support # menuconfig TIDSPBRIDGE tristate "DSP Bridge driver" depends on ARCH_OMAP3 select OMAP_MBOX_FWK help DSP/BIOS Bridge is designed for platforms that contain a GPP and one or more attached DSPs. The GPP is considered the master or "host" processor, and the attached DSPs are processing resources that can be utilized by applications and drivers running on the GPP. This driver depends on OMAP Mailbox (OMAP_MBOX_FWK). config BRIDGE_DVFS bool "Enable Bridge Dynamic Voltage and Frequency Scaling (DVFS)" depends on TIDSPBRIDGE && OMAP_PM_SRF && CPU_FREQ default n help DVFS allows DSP Bridge to initiate the operating point change to scale the chip voltage and frequency in order to match the performance and power consumption to the current processing requirements. config BRIDGE_MEMPOOL_SIZE hex "Physical memory pool size (Byte)" depends on TIDSPBRIDGE default 0x600000 help Allocate specified size of memory at booting time to avoid allocation failure under heavy memory fragmentation after some use time. config BRIDGE_DEBUG bool "DSP Bridge Debug Support" depends on TIDSPBRIDGE help Say Y to enable Bridge debugging capabilities config BRIDGE_RECOVERY bool "DSP Recovery Support" depends on TIDSPBRIDGE help In case of DSP fatal error, BRIDGE driver will try to recover itself. config BRIDGE_CACHE_LINE_CHECK bool "Check buffers to be 128 byte aligned" depends on TIDSPBRIDGE default n help When the DSP processes data, the DSP cache controller loads 128-Byte chunks (lines) from SDRAM and writes the data back in 128-Byte chunks. If a DMM buffer does not start and end on a 128-Byte boundary, the data preceding the start address (SA) from the 128-Byte boundary to the SA and the data at addresses trailing the end address (EA) from the EA to the next 128-Byte boundary will be loaded and written back as well. This can lead to heap corruption. Say Y, to enforce the check for 128 byte alignment, buffers failing this check will be rejected. config BRIDGE_WDT3 bool "Enable WDT3 interruptions" depends on TIDSPBRIDGE default n help WTD3 is managed by DSP and once it is enabled, DSP side bridge is in charge of refreshing the timer before overflow, if the DSP hangs MPU will caught the interrupt and try to recover DSP. config WDT_TIMEOUT int "DSP watchdog timer timeout (in secs)" depends on BRIDGE_WDT3 default 5 help Watchdog timer timeout value, after that time if the watchdog timer counter is not reset the wdt overflow interrupt will be triggered comment "Bridge Notifications" depends on TIDSPBRIDGE config BRIDGE_NTFY_PWRERR bool "Notify DSP Power Error" depends on TIDSPBRIDGE help Enable notifications to registered clients on the event of power errror trying to suspend bridge driver. Say Y, to signal this event as a fatal error, this will require a bridge restart to recover.