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It turns out that the code which enables specific LDN is somewhat buggy.

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Instead of enable the device the device gets disabled. However after some time the serial line gets back, most likely some "enable resources" might fix it. 
I'm attaching patch which somewhat fixes the problem and changes the function to look same in all superio code. Some boards even did not convert the dev->enabled to 0,1 values. 


Signed-off-by: Rudolf Marek <r.marek@assembler.cz> 
Acked-by: Peter Stuge <peter@stuge.se>




git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6373 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Rudolf Marek
2011-02-19 14:51:31 +00:00
parent b8cdd9b450
commit 0c8e664713
20 changed files with 20 additions and 35 deletions
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2
src/superio/intel/i3100/superio.c
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@@ -78,7 +78,7 @@ static void i3100_pnp_enable(device_t dev)
{
pnp_enter_ext_func_mode(dev);
pnp_set_logical_device(dev);
pnp_set_enable(dev, dev->enabled);
pnp_set_enable(dev, !!dev->enabled);
pnp_exit_ext_func_mode(dev);
}