From: "Jongsung Kim" <neidhard.kim@lge.com>
To: "'Stephen Warren'" <swarren@wwwdotorg.org>
Cc: "'Russell King'" <linux@arm.linux.org.uk>,
"'Greg Kroah-Hartman'" <gregkh@linuxfoundation.org>,
<jslaby@suse.cz>, <linux-serial@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<linux-rpi-kernel@lists.infradead.org>,
<linux-arm-kernel@lists.infradead.org>
Subject: RE: [PATCH] ARM: PL011: add support for extended FIFO-size of PL011-r1p5
Date: Thu, 16 May 2013 22:26:41 +0900 [thread overview]
Message-ID: <02e901ce5239$013b2570$03b17050$@lge.com> (raw)
In-Reply-To: <5193164E.6050400@wwwdotorg.org>
Stephen Warren <swarren@wwwdotorg.org> :
>> All r1p5 have 32-byte FIFO depth and it's not configurable. From the
PL011
>> TRM:
>>
>> r1p4-r1p5 Contains the following differences in functionality:
>> * The receive and transmit FIFOs are increased to a depth of
32.
>> * The Revision field in the UARTPeriphID2 Register on page
3-24
>> bits [7:4] now reads back as 0x3.
>
> Well, that certainly isn't true in practice. I think we should revert
> this commit until we can determine what the problem is.
I asked to the ARM support about this. Waiting for reply..
WARNING: multiple messages have this Message-ID (diff)
From: "Jongsung Kim" <neidhard.kim@lge.com>
To: 'Stephen Warren' <swarren@wwwdotorg.org>
Cc: 'Russell King' <linux@arm.linux.org.uk>,
'Greg Kroah-Hartman' <gregkh@linuxfoundation.org>,
jslaby@suse.cz, linux-serial@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: RE: [PATCH] ARM: PL011: add support for extended FIFO-size of PL011-r1p5
Date: Thu, 16 May 2013 22:26:41 +0900 [thread overview]
Message-ID: <02e901ce5239$013b2570$03b17050$@lge.com> (raw)
In-Reply-To: <5193164E.6050400@wwwdotorg.org>
Stephen Warren <swarren@wwwdotorg.org> :
>> All r1p5 have 32-byte FIFO depth and it's not configurable. From the
PL011
>> TRM:
>>
>> r1p4-r1p5 Contains the following differences in functionality:
>> * The receive and transmit FIFOs are increased to a depth of
32.
>> * The Revision field in the UARTPeriphID2 Register on page
3-24
>> bits [7:4] now reads back as 0x3.
>
> Well, that certainly isn't true in practice. I think we should revert
> this commit until we can determine what the problem is.
I asked to the ARM support about this. Waiting for reply..
WARNING: multiple messages have this Message-ID (diff)
From: neidhard.kim@lge.com (Jongsung Kim)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: PL011: add support for extended FIFO-size of PL011-r1p5
Date: Thu, 16 May 2013 22:26:41 +0900 [thread overview]
Message-ID: <02e901ce5239$013b2570$03b17050$@lge.com> (raw)
In-Reply-To: <5193164E.6050400@wwwdotorg.org>
Stephen Warren <swarren@wwwdotorg.org> :
>> All r1p5 have 32-byte FIFO depth and it's not configurable. From the
PL011
>> TRM:
>>
>> r1p4-r1p5 Contains the following differences in functionality:
>> * The receive and transmit FIFOs are increased to a depth of
32.
>> * The Revision field in the UARTPeriphID2 Register on page
3-24
>> bits [7:4] now reads back as 0x3.
>
> Well, that certainly isn't true in practice. I think we should revert
> this commit until we can determine what the problem is.
I asked to the ARM support about this. Waiting for reply..
next prev parent reply other threads:[~2013-05-16 13:26 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-12 9:18 [PATCH] ARM: PL011: add support for extended FIFO-size of PL011-r1p5 Jongsung Kim
2013-04-12 9:18 ` Jongsung Kim
2013-04-19 12:58 ` Russell King - ARM Linux
2013-05-14 5:56 ` Stephen Warren
2013-05-14 5:56 ` Stephen Warren
2013-05-14 5:56 ` Stephen Warren
2013-05-14 7:15 ` Jongsung Kim
2013-05-14 7:15 ` Jongsung Kim
2013-05-14 7:15 ` Jongsung Kim
2013-05-14 21:03 ` Stephen Warren
2013-05-14 21:03 ` Stephen Warren
2013-05-14 22:50 ` Russell King - ARM Linux
2013-05-14 22:50 ` Russell King - ARM Linux
2013-05-15 1:00 ` Jongsung Kim
2013-05-15 1:00 ` Jongsung Kim
2013-05-15 1:00 ` Jongsung Kim
2013-05-15 4:59 ` Stephen Warren
2013-05-15 4:59 ` Stephen Warren
2013-05-15 9:37 ` Russell King - ARM Linux
2013-05-15 9:37 ` Russell King - ARM Linux
2013-05-16 13:26 ` Jongsung Kim [this message]
2013-05-16 13:26 ` Jongsung Kim
2013-05-16 13:26 ` Jongsung Kim
2013-05-21 1:39 ` Jongsung Kim
2013-05-21 1:39 ` Jongsung Kim
2013-05-21 1:39 ` Jongsung Kim
2013-05-21 2:12 ` Stephen Warren
2013-05-21 2:12 ` Stephen Warren
2013-05-21 6:02 ` [PATCH] ARM: bcm2835: override the HW UART periphid Jongsung Kim
2013-05-21 6:02 ` Jongsung Kim
2013-05-21 6:07 ` Jongsung Kim
2013-05-21 6:07 ` Jongsung Kim
2013-05-21 6:07 ` Jongsung Kim
2013-05-21 9:00 ` Gordon Hollingworth
2013-05-21 9:00 ` Gordon Hollingworth
2013-05-21 9:00 ` Gordon Hollingworth
2013-05-21 16:34 ` Stephen Warren
2013-05-21 16:34 ` Stephen Warren
2013-05-22 1:43 ` Stephen Warren
2013-05-22 1:43 ` Stephen Warren
2013-05-22 1:52 ` Jongsung Kim
2013-05-22 1:52 ` Jongsung Kim
2013-05-22 1:52 ` Jongsung Kim
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