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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-12 14:27:24 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-12 14:27:24 -0800 |
commit | 09cea96caa59fabab3030c53bd698b9b568d959a (patch) | |
tree | a991cdc0c887fdcda37f4b751ee98d3db9559f4e /Documentation/powerpc | |
parent | 6eb7365db6f3a4a9d8d9922bb0b800f9cbaad641 (diff) | |
parent | e090aa80321b64c3b793f3b047e31ecf1af9538d (diff) | |
download | kernel_samsung_tuna-09cea96caa59fabab3030c53bd698b9b568d959a.zip kernel_samsung_tuna-09cea96caa59fabab3030c53bd698b9b568d959a.tar.gz kernel_samsung_tuna-09cea96caa59fabab3030c53bd698b9b568d959a.tar.bz2 |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (151 commits)
powerpc: Fix usage of 64-bit instruction in 32-bit altivec code
MAINTAINERS: Add PowerPC patterns
powerpc/pseries: Track previous CPPR values to correctly EOI interrupts
powerpc/pseries: Correct pseries/dlpar.c build break without CONFIG_SMP
powerpc: Make "intspec" pointers in irq_host->xlate() const
powerpc/8xx: DTLB Miss cleanup
powerpc/8xx: Remove DIRTY pte handling in DTLB Error.
powerpc/8xx: Start using dcbX instructions in various copy routines
powerpc/8xx: Restore _PAGE_WRITETHRU
powerpc/8xx: Add missing Guarded setting in DTLB Error.
powerpc/8xx: Fixup DAR from buggy dcbX instructions.
powerpc/8xx: Tag DAR with 0x00f0 to catch buggy instructions.
powerpc/8xx: Update TLB asm so it behaves as linux mm expects.
powerpc/8xx: Invalidate non present TLBs
powerpc/pseries: Serialize cpu hotplug operations during deactivate Vs deallocate
pseries/pseries: Add code to online/offline CPUs of a DLPAR node
powerpc: stop_this_cpu: remove the cpu from the online map.
powerpc/pseries: Add kernel based CPU DLPAR handling
sysfs/cpu: Add probe/release files
powerpc/pseries: Kernel DLPAR Infrastructure
...
Diffstat (limited to 'Documentation/powerpc')
-rw-r--r-- | Documentation/powerpc/dts-bindings/fsl/board.txt | 4 | ||||
-rw-r--r-- | Documentation/powerpc/dts-bindings/fsl/mpc5200.txt | 17 |
2 files changed, 20 insertions, 1 deletions
diff --git a/Documentation/powerpc/dts-bindings/fsl/board.txt b/Documentation/powerpc/dts-bindings/fsl/board.txt index e8b5bc2..39e9415 100644 --- a/Documentation/powerpc/dts-bindings/fsl/board.txt +++ b/Documentation/powerpc/dts-bindings/fsl/board.txt @@ -20,12 +20,16 @@ Required properities: - compatible : should be "fsl,fpga-pixis". - reg : should contain the address and the length of the FPPGA register set. +- interrupt-parent: should specify phandle for the interrupt controller. +- interrupts : should specify event (wakeup) IRQ. Example (MPC8610HPCD): board-control@e8000000 { compatible = "fsl,fpga-pixis"; reg = <0xe8000000 32>; + interrupt-parent = <&mpic>; + interrupts = <8 8>; }; * Freescale BCSR GPIO banks diff --git a/Documentation/powerpc/dts-bindings/fsl/mpc5200.txt b/Documentation/powerpc/dts-bindings/fsl/mpc5200.txt index cabc780..5c6602d 100644 --- a/Documentation/powerpc/dts-bindings/fsl/mpc5200.txt +++ b/Documentation/powerpc/dts-bindings/fsl/mpc5200.txt @@ -103,7 +103,22 @@ fsl,mpc5200-gpt nodes --------------------- On the mpc5200 and 5200b, GPT0 has a watchdog timer function. If the board design supports the internal wdt, then the device node for GPT0 should -include the empty property 'fsl,has-wdt'. +include the empty property 'fsl,has-wdt'. Note that this does not activate +the watchdog. The timer will function as a GPT if the timer api is used, and +it will function as watchdog if the watchdog device is used. The watchdog +mode has priority over the gpt mode, i.e. if the watchdog is activated, any +gpt api call to this timer will fail with -EBUSY. + +If you add the property + fsl,wdt-on-boot = <n>; +GPT0 will be marked as in-use watchdog, i.e. blocking every gpt access to it. +If n>0, the watchdog is started with a timeout of n seconds. If n=0, the +configuration of the watchdog is not touched. This is useful in two cases: +- just mark GPT0 as watchdog, blocking gpt accesses, and configure it later; +- do not touch a configuration assigned by the boot loader which supervises + the boot process itself. + +The watchdog will respect the CONFIG_WATCHDOG_NOWAYOUT option. An mpc5200-gpt can be used as a single line GPIO controller. To do so, add the following properties to the gpt node: |