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authorRob Herring <rob.herring@calxeda.com>2013-01-28 20:13:14 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-02-02 03:01:15 +0400
commit300586778d405f0a4d1f6dc51fcfb4fed567d020 (patch)
treef54593ff6668e89df990f2b4cbd2d55176ada437 /drivers/mailbox/Kconfig
parentb5964708532f4713e9cfb1b8b1a6ac8544fc66af (diff)
downloadlinux-300586778d405f0a4d1f6dc51fcfb4fed567d020.tar.xz
ARM / highbank: add support for pl320 IPC
The pl320 IPC allows for interprocessor communication between the highbank A9 and the EnergyCore Management Engine. The pl320 implements a straightforward mailbox protocol. Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/mailbox/Kconfig')
-rw-r--r--drivers/mailbox/Kconfig19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig
new file mode 100644
index 000000000000..9545c9f03809
--- /dev/null
+++ b/drivers/mailbox/Kconfig
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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.
+
+endif