From owner-freebsd-arm@FreeBSD.ORG  Wed Oct  2 13:01:00 2013
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Date: Wed, 02 Oct 2013 22:00:51 +0900 (JST)
Message-Id: <20131002.220051.226805883.toshi@ruby.ocn.ne.jp>
To: freebsd-arm@freebsd.org
Subject: Re: BBB CPU clock (was: Re: FreeBSD on Cubieboard 2, UDOO and
 Galaxy Note 10.1 (Exynos).
From: SAITOU Toshihide <toshi@ruby.ocn.ne.jp>
In-Reply-To: <CAHNYxxNxvgC7u5LhDoBwrXnEYTFkLbF1jdiPyFjxVW8_1wTk4A@mail.gmail.com>
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I followed the steps you provided and my bbb (Rev A5A)
booted at 912 MHz.

    mw.l 0x44e00488 0x00000004
    mw.l 0x44e0042c 0x00039017
    mw.l 0x44e004a8 0x00000201
    mw.l 0x44e00488 0x00000007

    setenv serverip 192.168.0.1
    setenv bootfile boot/kernel/kernel.bin
    setenv loadaddr 0x80200000
    dhcp
    go 80200000

    (skip)

    am335x_prcm0: Clocks: System 24.0 MHz, CPU 912 MHz

    (skip)

    FreeBSD/arm (bbb) (ttyu0)

    login: 


I also measure voltage drop of C9, C11 and C12 and it seems
that the setting for the TPS75217D by u-boot are not effect.

    i2c mw 24 01 3f 1
    i2c mw 24 0b 72 1
    i2c mw 24 0f 18 1
    i2c mw 24 0b 72 1
    i2c mw 24 0f 18 1

    i2c md 24 0f 1
    000f: 11    .       <- 1.325 V (tps65217c.pdf, p. 56)

-- 
SAITOU Toshihide