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From: "Matvejchikov Ilya" <matvejchikov@gmail.com>
To: linuxppc-embedded@ozlabs.org
Subject: cpm_setbrg problem
Date: Wed, 6 Jun 2007 16:30:14 +0400	[thread overview]
Message-ID: <8496f91a0706060530o57ebb3e4nf87ae4f566ea2e4e@mail.gmail.com> (raw)

Hi all!

There is a problem in cpm_setbrg (arch/powerpc/sysdev/cpm2_common.c
file) function. When rate 9600 all is OK, but with 115200 it doesn't
work properly. As I see it the following is incorrect:
          *bp = ((BRG_UART_CLK / rate) << 1) | CPM_BRG_EN;
it must be
          *bp = (((BRG_UART_CLK / rate) - 1) << 1) | CPM_BRG_EN;

Best regards,
Matvejchikov Ilya.

                 reply	other threads:[~2007-06-06 12:30 UTC|newest]

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