[U-Boot] [PATCH 6/8] arm, davinci, am1808: add lowlevel functions for booting from NOR

[Heiko Schocher]

Hello Christian,

Christian Riesch wrote:
> Heiko,
> I am looking forward to see these patches in mainline u-boot. My
> custom board also directly boots from NOR, so I think there is a lot I
> can re-use for my board.

Thats the goal ;-)

> I have one question, please see below:
[...]
>> +void am1808_lpc_transition(unsigned char pscnum, unsigned char module,
>> +               unsigned char domain, unsigned char state)
>> +{
[...]
>> +       /* Wait for transition to complete */
>> +       while (readl(&reg->ptstat) & (0x00000001 << domain))
>> +               ;
>> +
>> +       /* Wait and verify the state */
>> +       while ((readl(mdstat) & 0x1F) != state)
>> +               ;
>> +}
> 
> There is some similar code in arch/arm/cpu/arm926ejs/davinci/psc.c. Is
> there any reason why you don't use this code or adapt it for your
> needs?

No, there is no reason, just missed it! I try the functions in
arch/arm/cpu/arm926ejs/davinci/psc.c and if they work, I remove the
am1808_lpc_transition function.

Thanks!

bye,
Heiko
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