c869c75c16
The mailbox hardware (in OMAP) uses a queued mailbox interrupt
mechanism that provides a communication channel between processors
through a set of registers and their associated interrupt signals
by sending and receiving messages.
The OMAP mailbox framework/driver code is moved to be under
drivers/mailbox, in preparation for adapting to a common mailbox
driver framework. This allows the build for OMAP mailbox to be
enabled (it was disabled during the multi-platform support).
As part of the migration from plat and mach code:
- Kconfig symbols have been renamed to build OMAP1 or OMAP2+ drivers.
- mailbox.h under plat-omap/plat/include has been split into a public
and private header files. The public header has only the API related
functions and types.
- The module name mailbox.ko from plat-omap is changed to
omap-mailbox.ko
- The module name mailbox_mach.ko from mach-omapX is changed as
mailbox_omap1.ko for OMAP1
mailbox_omap2.ko for OMAP2+
Cc: Tony Lindgren <tony@atomide.com>
[gregkh@linuxfoundation.org: ack for staging part]
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Omar Ramirez Luna <omar.ramirez@copitl.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
54 lines
1.8 KiB
Plaintext
54 lines
1.8 KiB
Plaintext
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
|