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[ARM] orion5x: Fix soft-reset for some platforms 

Some platforms, such as the DNS-323 rev C requires the soft reset line
to be toggled on and back off for the reset to work.

Note: The choice of 200ms delay comes from the 2.6.12 based vendor kernel.
It seems to be a -lot- though and I had my device working fine with much
smaller delays but better safe...

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
hifive-unleashed-5.1
Benjamin Herrenschmidt 2010-06-21 13:22:08 +10:00 committed by Nicolas Pitre
parent 6e2daa4942
commit 445f12dca8
1 changed files with 2 additions and 0 deletions
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2
arch/arm/mach-orion5x/include/mach/system.h
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@ -25,6 +25,8 @@ static inline void arch_reset(char mode, const char *cmd)
*/
orion5x_setbits(RSTOUTn_MASK, (1 << 2));
orion5x_setbits(CPU_SOFT_RESET, 1);
mdelay(200);
orion5x_clrbits(CPU_SOFT_RESET, 1);
}