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Davinci: watchdog reset separation across socs

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The earlier watchdog reset mechanism had a couple of limitations.  First, it
embedded a reference to "davinci_wdt_device" inside common code.  This
forced all derived platforms (da8xx and tnetv107x) to define such a device.
This also would have caused problems in including multiple socs in a single
build due to symbol redefinition.

With this patch, davinci_watchdog_reset() now takes the platform device as an
argument.  The davinci_soc_info struct has been extended to include a reset
function and a watchdog platform_device.  arch_reset() then uses these
elements to reset the system in a SoC specific fashion.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Tested-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Cyril Chemparathy
2010-05-01 18:38:28 -04:00
committed by Kevin Hilman
parent 5b3a05ca91
commit c78a5bc2e7
13 changed files with 25 additions and 7 deletions
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3
arch/arm/mach-davinci/common.c
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@@ -77,6 +77,9 @@ void __init davinci_common_init(struct davinci_soc_info *soc_info)
local_flush_tlb_all();
flush_cache_all();
if (!davinci_soc_info.reset)
davinci_soc_info.reset = davinci_watchdog_reset;
/*
* We want to check CPU revision early for cpu_is_xxxx() macros.
* IO space mapping must be initialized before we can do that.