From: thomas.petazzoni@free-electrons.com (Thomas Petazzoni)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC v1 5/5] ARM: mvebu: add board init for Armada 1500
Date: Sat, 17 Aug 2013 17:38:02 +0200 [thread overview]
Message-ID: <20130817173802.71da1d14@skate> (raw)
In-Reply-To: <1376682098-10580-6-git-send-email-sebastian.hesselbarth@gmail.com>
Dear Sebastian Hesselbarth,
On Fri, 16 Aug 2013 21:41:38 +0200, Sebastian Hesselbarth wrote:
> I am not so sure about the .map_io but I didn't yet fully understand
> the mapping requirement. Anyway, it is required for iomap and friends
> to work and basically remaps physical register addressed onto the same
> virtual addresses.
You should normally be able to completely avoid the ->map_io() hook. If
you leave it set to NULL, it will automatically call
debug_ll_io_init(), which will setup the virt->phys mapping needed by
DEBUG_LL stuff. All the other mappings will be created dynamically with
ioremap().
The static mapping covering all registers is really no longer needed.
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
WARNING: multiple messages have this Message-ID (diff)
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>,
Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>,
Gregory Clement <gregory.clement@free-electrons.com>,
Arnd Bergmann <arnd@arndb.de>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC v1 5/5] ARM: mvebu: add board init for Armada 1500
Date: Sat, 17 Aug 2013 17:38:02 +0200 [thread overview]
Message-ID: <20130817173802.71da1d14@skate> (raw)
In-Reply-To: <1376682098-10580-6-git-send-email-sebastian.hesselbarth@gmail.com>
Dear Sebastian Hesselbarth,
On Fri, 16 Aug 2013 21:41:38 +0200, Sebastian Hesselbarth wrote:
> I am not so sure about the .map_io but I didn't yet fully understand
> the mapping requirement. Anyway, it is required for iomap and friends
> to work and basically remaps physical register addressed onto the same
> virtual addresses.
You should normally be able to completely avoid the ->map_io() hook. If
you leave it set to NULL, it will automatically call
debug_ll_io_init(), which will setup the virt->phys mapping needed by
DEBUG_LL stuff. All the other mappings will be created dynamically with
ioremap().
The static mapping covering all registers is really no longer needed.
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2013-08-17 15:38 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-16 19:41 [RFC v1 0/5] ARM: Initial support for Marvell Armada 1500 Sebastian Hesselbarth
2013-08-16 19:41 ` Sebastian Hesselbarth
2013-08-16 19:41 ` [RFC v1 1/5] irqchip: add Armada 1500 APB interrupt controller Sebastian Hesselbarth
2013-08-17 13:24 ` Sebastian Hesselbarth
2013-08-17 13:24 ` Sebastian Hesselbarth
2013-08-16 19:41 ` [RFC v1 2/5] ARM: mvebu: add Armada 1500 to defconfig Sebastian Hesselbarth
2013-08-16 19:41 ` [RFC v1 3/5] ARM: mvebu: add Armada 150 uart to lowlevel debug Sebastian Hesselbarth
2013-08-16 20:39 ` Jason Cooper
2013-08-16 20:39 ` Jason Cooper
2013-08-17 19:01 ` Arnd Bergmann
2013-08-17 19:01 ` Arnd Bergmann
2013-08-16 19:41 ` [RFC v1 4/5] ARM: mvebu: add Armada 1500 and Sony NSZ-GS7 device tree files Sebastian Hesselbarth
2013-08-16 19:50 ` Jason Cooper
2013-08-16 19:50 ` Jason Cooper
2013-08-16 19:54 ` Sebastian Hesselbarth
2013-08-16 19:54 ` Sebastian Hesselbarth
2013-08-16 20:22 ` Jason Cooper
2013-08-16 20:22 ` Jason Cooper
2013-08-17 19:28 ` Arnd Bergmann
2013-08-17 19:28 ` Arnd Bergmann
2013-08-18 23:11 ` Sebastian Hesselbarth
2013-08-18 23:11 ` Sebastian Hesselbarth
2013-08-19 8:46 ` Arnd Bergmann
2013-08-19 8:46 ` Arnd Bergmann
2013-08-16 19:41 ` [RFC v1 5/5] ARM: mvebu: add board init for Armada 1500 Sebastian Hesselbarth
2013-08-16 20:48 ` Jason Cooper
2013-08-16 20:48 ` Jason Cooper
2013-08-17 13:01 ` Sebastian Hesselbarth
2013-08-17 13:01 ` Sebastian Hesselbarth
2013-08-17 19:08 ` Arnd Bergmann
2013-08-17 19:08 ` Arnd Bergmann
2013-08-17 19:13 ` Arnd Bergmann
2013-08-17 19:13 ` Arnd Bergmann
2013-08-18 23:01 ` Sebastian Hesselbarth
2013-08-18 23:01 ` Sebastian Hesselbarth
2013-08-19 7:44 ` Arnd Bergmann
2013-08-19 7:44 ` Arnd Bergmann
2013-08-19 14:52 ` Sebastian Hesselbarth
2013-08-19 14:52 ` Sebastian Hesselbarth
2013-08-19 17:47 ` Arnd Bergmann
2013-08-19 17:47 ` Arnd Bergmann
2013-08-17 15:38 ` Thomas Petazzoni [this message]
2013-08-17 15:38 ` Thomas Petazzoni
2013-08-17 19:12 ` Arnd Bergmann
2013-08-17 19:12 ` Arnd Bergmann
2013-08-18 23:02 ` Sebastian Hesselbarth
2013-08-18 23:02 ` Sebastian Hesselbarth
2013-08-19 7:58 ` Arnd Bergmann
2013-08-19 7:58 ` Arnd Bergmann
2013-08-17 19:32 ` [RFC v1 0/5] ARM: Initial support for Marvell " Arnd Bergmann
2013-08-17 19:32 ` Arnd Bergmann
2013-08-18 23:21 ` Sebastian Hesselbarth
2013-08-18 23:21 ` Sebastian Hesselbarth
2013-08-19 8:03 ` Arnd Bergmann
2013-08-19 8:03 ` Arnd Bergmann
2013-08-18 16:34 ` Thomas Petazzoni
2013-08-18 16:34 ` Thomas Petazzoni
2013-08-27 14:19 ` Thomas Petazzoni
2013-08-27 14:19 ` Thomas Petazzoni
2013-08-27 16:45 ` Sebastian Hesselbarth
2013-08-27 16:45 ` Sebastian Hesselbarth
2013-08-27 16:51 ` Thomas Petazzoni
2013-08-27 16:51 ` Thomas Petazzoni
2013-08-27 19:38 ` Arnd Bergmann
2013-08-27 19:38 ` Arnd Bergmann
2013-08-28 0:14 ` [PATCH RFC v2 0/6] " Sebastian Hesselbarth
2013-08-28 0:14 ` Sebastian Hesselbarth
2013-08-28 0:14 ` [PATCH RFC v2 1/6] irqchip: add DesignWare APB ICTL interrupt controller Sebastian Hesselbarth
2013-08-28 0:14 ` Sebastian Hesselbarth
2013-08-28 0:14 ` Sebastian Hesselbarth
2013-08-28 0:14 ` [PATCH RFC v2 2/6] ARM: add Marvell Berlin SoC familiy to Marvell doc Sebastian Hesselbarth
2013-08-28 0:14 ` Sebastian Hesselbarth
2013-08-28 0:14 ` [PATCH RFC v2 3/6] ARM: add Marvell Berlin and Armada 1500 to multi_v7_defconfig Sebastian Hesselbarth
2013-08-28 0:14 ` Sebastian Hesselbarth
2013-08-28 0:14 ` [PATCH RFC v2 4/6] ARM: add Marvell Berlin UART0 lowlevel debug Sebastian Hesselbarth
2013-08-28 0:14 ` Sebastian Hesselbarth
2013-08-28 0:14 ` [PATCH RFC v2 5/6] ARM: add Armada 1500 and Sony NSZ-GS7 device tree files Sebastian Hesselbarth
2013-08-28 0:14 ` Sebastian Hesselbarth
2013-08-28 0:14 ` Sebastian Hesselbarth
2013-08-28 12:14 ` Jason Cooper
2013-08-28 12:14 ` Jason Cooper
2013-08-28 12:23 ` Sebastian Hesselbarth
2013-08-28 12:23 ` Sebastian Hesselbarth
2013-08-28 0:14 ` [PATCH RFC v2 6/6] ARM: add initial support for Marvell Berlin SoCs Sebastian Hesselbarth
2013-08-28 0:14 ` Sebastian Hesselbarth
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