From: w.sang@pengutronix.de (Wolfram Sang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 05/15] ARM: mxs: Add low-level debug UART support
Date: Mon, 20 Dec 2010 12:50:59 +0100 [thread overview]
Message-ID: <20101220115059.GA8885@pengutronix.de> (raw)
In-Reply-To: <1292679575-2635-4-git-send-email-shawn.guo@freescale.com>
Hi Shawn,
I discovered this weekend that the DUART is just an amba-pl011 which
is already supported in mainline. So we should use the existing
infrastructure here.
On Sat, Dec 18, 2010 at 09:39:29PM +0800, Shawn Guo wrote:
> - DEBUG_LL support, which is incompatible with multi-soc MXS image
> because of different DUART base address on MX23 and MX28
We should be able to use the AMBA identification signature to distinguish at
runtime, no?
> - uncompress message support
>
> Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
> arch/arm/mach-mxs/include/mach/debug-macro.S | 52 ++++++++++++++++++
We should use asm/hardware/debug-pl01x.S, like the other users:
wsa at katana:~/Kernel/linux-2.6/arch/arm$ g debug-pl01x
include/asm/hardware/debug-pl01x.S:1:/* arch/arm/include/asm/hardware/debug-pl01x.S
mach-cns3xxx/include/mach/debug-macro.S:19:#include <asm/hardware/debug-pl01x.S>
mach-ep93xx/include/mach/debug-macro.S:21:#include <asm/hardware/debug-pl01x.S>
mach-integrator/include/mach/debug-macro.S:20:#include <asm/hardware/debug-pl01x.S>
mach-nomadik/include/mach/debug-macro.S:20:#include <asm/hardware/debug-pl01x.S>
mach-realview/include/mach/debug-macro.S:42:#include <asm/hardware/debug-pl01x.S>
mach-u300/include/mach/debug-macro.S:21:#include <asm/hardware/debug-pl01x.S>
mach-ux500/include/mach/debug-macro.S:26:#include <asm/hardware/debug-pl01x.S>
mach-versatile/include/mach/debug-macro.S:21:#include <asm/hardware/debug-pl01x.S>
mach-vexpress/include/mach/debug-macro.S:21:#include <asm/hardware/debug-pl01x.S>
> arch/arm/mach-mxs/include/mach/uncompress.h | 76 ++++++++++++++++++++++++++
Auto-detection could be used here, too?
Kind regards,
Wolfram
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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next prev parent reply other threads:[~2010-12-20 11:50 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-18 13:39 [PATCH v7 00/15] ARM: mxs: Add initial support for MX23 and MX28 Shawn Guo
2010-12-18 13:39 ` [PATCH v7 03/15] ARM: mxs: Add reset routines Shawn Guo
2010-12-18 13:39 ` [PATCH v7 04/15] ARM: mxs: Add interrupt support Shawn Guo
2010-12-18 13:39 ` [PATCH v7 05/15] ARM: mxs: Add low-level debug UART support Shawn Guo
2010-12-20 11:50 ` Wolfram Sang [this message]
2010-12-20 13:22 ` Shawn Guo
2010-12-20 13:55 ` Wolfram Sang
2010-12-20 14:25 ` Shawn Guo
2010-12-20 14:35 ` Wolfram Sang
2010-12-18 13:39 ` [PATCH v7 06/15] ARM: mxs: Add timer support Shawn Guo
2010-12-18 13:39 ` [PATCH v7 07/15] ARM: mxs: Add gpio support Shawn Guo
2010-12-18 13:39 ` [PATCH v7 08/15] ARM: mxs: Add iomux support Shawn Guo
2010-12-20 9:44 ` Uwe Kleine-König
2010-12-18 13:39 ` [PATCH v7 09/15] ARM: mxs: Add clock support Shawn Guo
2010-12-18 13:39 ` [PATCH v7 13/15] ARM: mxs: Add initial mx23evk support Shawn Guo
2010-12-20 9:48 ` Uwe Kleine-König
2010-12-20 10:17 ` Shawn Guo
2010-12-18 13:39 ` [PATCH v7 14/15] ARM: mxs: Add initial mx28evk support Shawn Guo
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