Date: Thu, 6 Sep 2018 23:08:38 +0300 From: Lev Serebryakov <lev@FreeBSD.org> To: Craig Leres <leres@freebsd.org>, gljennjohn@gmail.com Cc: freebsd-hackers@freebsd.org, Allan Jude <allanjude@freebsd.org>, Jung-uk Kim <jkim@FreeBSD.org> Subject: Re: Is here way to have 9600+ serial console and see boot0 message? Message-ID: <8a705b8c-5638-bc55-bdd2-809f8184821e@FreeBSD.org> In-Reply-To: <264c2f26-dda5-129c-5cab-513bb1cb4132@freebsd.org> References: <ac3fe50c-d9a0-96ba-28f0-84ffca8e4cd3@FreeBSD.org> <14cd401a-660c-1a3a-8d80-677a42727146@freebsd.org> <0bc33818-641c-07db-194b-66fd1eb30c55@FreeBSD.org> <36485aef-0fdd-bcb1-993e-e334a1cd81ab@FreeBSD.org> <f718fbf2-4433-f9be-7ce2-24a91f78c6cb@FreeBSD.org> <20180906191109.49f9d0ab@ernst.home> <7dd2224d-f109-c585-5ee9-a1cc2c09d20e@FreeBSD.org> <264c2f26-dda5-129c-5cab-513bb1cb4132@freebsd.org>
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On 06.09.2018 22:45, Craig Leres wrote:
>> Nope. If BOOT_BOOT0_COMCONSOLE_SPEED defined, it is used as-is. If it
>> is not defined it is derived from BOOT_COMCONSOLE_SPEED. So, defining it
>> to "0" should work. And disassembling boot0sio confirms it.
>>
>> .if !defined(BOOT_BOOT0_COMCONSOLE_SPEED)
>> BOOT_COMCONSOLE_SPEED?= 9600
>> .if ${BOOT_COMCONSOLE_SPEED} == 9600
>> BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3"
>> .elif ${BOOT_COMCONSOLE_SPEED} == 4800
>> BOOT_BOOT0_COMCONSOLE_SPEED= "6 << 5 + 3"
>> .elif ${BOOT_COMCONSOLE_SPEED} == 2400
>> BOOT_BOOT0_COMCONSOLE_SPEED= "5 << 5 + 3"
>> .elif ${BOOT_COMCONSOLE_SPEED} == 1200
>> BOOT_BOOT0_COMCONSOLE_SPEED= "4 << 5 + 3"
>> .elif ${BOOT_COMCONSOLE_SPEED} == 600
>> BOOT_BOOT0_COMCONSOLE_SPEED= "3 << 5 + 3"
>> .elif ${BOOT_COMCONSOLE_SPEED} == 300
>> BOOT_BOOT0_COMCONSOLE_SPEED= "2 << 5 + 3"
>> .elif ${BOOT_COMCONSOLE_SPEED} == 150
>> BOOT_BOOT0_COMCONSOLE_SPEED= "1 << 5 + 3"
>> .elif ${BOOT_COMCONSOLE_SPEED} == 110
>> BOOT_BOOT0_COMCONSOLE_SPEED= "0 << 5 + 3"
>> .else
>> BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3"
>> .endif
>> .endif
>
> Maybe I don't understand what you're saying but I don't think defining
> to "0" is the same as not defining.
It is exactly what I've said: defining it to "0" bypass all these
checks for permitted value.
--
// Lev Serebryakov
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