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menuconfig MAILBOX
bool "Mailbox Hardware Support"
help
Mailbox is a framework to control hardware communication between
on-chip processors through queued messages and interrupt driven
signals. Say Y if your platform supports hardware mailboxes.
if MAILBOX
config PL320_MBOX
bool "ARM PL320 Mailbox"
depends on ARM_AMBA
help
An implementation of the ARM PL320 Interprocessor Communication
Mailbox (IPCM), tailored for the Calxeda Highbank. It is used to
send short messages between Highbank's A9 cores and the EnergyCore
Management Engine, primarily for cpufreq. Say Y here if you want
to use the PL320 IPCM support.
config OMAP_MBOX
tristate
help
This option is selected by any OMAP architecture specific mailbox
driver such as CONFIG_OMAP1_MBOX or CONFIG_OMAP2PLUS_MBOX. This
enables the common OMAP mailbox framework code.
config OMAP1_MBOX
tristate "OMAP1 Mailbox framework support"
depends on ARCH_OMAP1
select OMAP_MBOX
help
Mailbox implementation for OMAP chips with hardware for
interprocessor communication involving DSP in OMAP1. Say Y here
if you want to use OMAP1 Mailbox framework support.
config OMAP2PLUS_MBOX
tristate "OMAP2+ Mailbox framework support"
depends on ARCH_OMAP2PLUS
select OMAP_MBOX
help
Mailbox implementation for OMAP family chips with hardware for
interprocessor communication involving DSP, IVA1.0 and IVA2 in
OMAP2/3; or IPU, IVA HD and DSP in OMAP4/5. Say Y here if you
want to use OMAP2+ Mailbox framework support.
config OMAP_MBOX_KFIFO_SIZE
int "Mailbox kfifo default buffer size (bytes)"
depends on OMAP2PLUS_MBOX || OMAP1_MBOX
default 256
help
Specify the default size of mailbox's kfifo buffers (bytes).
This can also be changed at runtime (via the mbox_kfifo_size
module parameter).
endif
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