diff options
author | Stefan Roese <sr@denx.de> | 2010-04-27 18:13:34 -0400 |
---|---|---|
committer | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2010-05-05 12:51:54 -0400 |
commit | a32fe93daf9c6b6ffbab1d9b9e2a8e4c335bda5c (patch) | |
tree | 66a68d8817ba3c86f1f38ee2cd1b5f92a9d56076 /Documentation | |
parent | 101c192e1163c1c7e8d29748108b582929975038 (diff) |
powerpc/4xx: Add optional "reset_type" property to control reboot via dts
By setting "reset_type" to one of the following values, the default
software reset mechanism may be overidden. Here the possible values of
"reset_type":
1 - PPC4xx core reset
2 - PPC4xx chip reset
3 - PPC4xx system reset (default)
This will be used by a new PPC440SPe board port, which needs a "chip
reset" instead of the default "system reset" to be asserted.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/powerpc/dts-bindings/4xx/reboot.txt | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/powerpc/dts-bindings/4xx/reboot.txt b/Documentation/powerpc/dts-bindings/4xx/reboot.txt new file mode 100644 index 000000000000..d7217260589c --- /dev/null +++ b/Documentation/powerpc/dts-bindings/4xx/reboot.txt | |||
@@ -0,0 +1,18 @@ | |||
1 | Reboot property to control system reboot on PPC4xx systems: | ||
2 | |||
3 | By setting "reset_type" to one of the following values, the default | ||
4 | software reset mechanism may be overidden. Here the possible values of | ||
5 | "reset_type": | ||
6 | |||
7 | 1 - PPC4xx core reset | ||
8 | 2 - PPC4xx chip reset | ||
9 | 3 - PPC4xx system reset (default) | ||
10 | |||
11 | Example: | ||
12 | |||
13 | cpu@0 { | ||
14 | device_type = "cpu"; | ||
15 | model = "PowerPC,440SPe"; | ||
16 | ... | ||
17 | reset-type = <2>; /* Use chip-reset */ | ||
18 | }; | ||