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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Fabio Estevam <festevam@gmail.com>
Cc: Barebox List <barebox@lists.infradead.org>
Subject: Re: i.MX7 support
Date: Thu, 19 Jan 2017 13:38:49 +0100	[thread overview]
Message-ID: <20170119123849.dcyozsblhb45upde@pengutronix.de> (raw)
In-Reply-To: <CAOMZO5D4jSGrYPhsu=bk2wM_Dvzg-0zKC_JQTuyZpb7N-iqFtA@mail.gmail.com>

Hi Fabio,

On Thu, Jan 19, 2017 at 09:54:57AM -0200, Fabio Estevam wrote:
> On Thu, Jan 19, 2017 at 7:14 AM, Sascha Hauer <s.hauer@pengutronix.de> wrote:
> 
> > Ok, found it. The i.MX7 has two iomux controllers, the regular one and
> > the LPSR iomux controller. In the warp7 and other dts files the LPSR
> > pins are attached to the regular controller, not the LPSR controller.
> > I just sent out a series fixing this, you are on Cc.
> > With U-Boot this problem does not occur since U-Boot uses it's own code
> > to correctly configure the iomux_lpsr controller which is then not
> > touched again from Linux.
> > With this fix reset works in barebox and also reboot under Linux.
> 
> Thanks for the fix!

I have one issue with starting the kernel on i.MX7. The architected
timer does not work. In U-Boot I found arch/arm/imx-common/syscounter.c
in which the system counter is initialized. I just copied the code and
it works, but I wonder what I am doing here. I can't find any
documentation in the Reference Manual and also the 8MHz tick rate for
the architected timer seems to fall from the sky. Do you have any
additional documentation?

Sascha

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  reply	other threads:[~2017-01-19 12:41 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-16 10:50 Sascha Hauer
2017-01-16 10:50 ` [PATCH 01/23] imx-usb-loader: let constant data be const Sascha Hauer
2017-01-16 10:50 ` [PATCH 02/23] imx-usb-loader: this table is used internally only, so keep it static Sascha Hauer
2017-01-16 11:29   ` Juergen Borleis
2017-01-16 10:50 ` [PATCH 03/23] imx-usb-loader: add i.MX7S support Sascha Hauer
2017-01-16 10:50 ` [PATCH 04/23] ARM: Makefile: format fix Sascha Hauer
2017-01-16 10:50 ` [PATCH 05/23] i2c: i.MX: Enable clock Sascha Hauer
2017-01-16 10:50 ` [PATCH 06/23] mci: imx-esdhc: " Sascha Hauer
2017-01-16 10:50 ` [PATCH 07/23] serial: i.MX: " Sascha Hauer
2017-01-16 10:50 ` [PATCH 08/23] usb: imx: Make usb-misc multi instance safe Sascha Hauer
2017-01-16 10:50 ` [PATCH 09/23] usb: imx: Add usbmisc support for i.MX7 Sascha Hauer
2017-01-16 10:50 ` [PATCH 10/23] usb: imx: Add clock support Sascha Hauer
2017-01-16 10:50 ` [PATCH 11/23] phy: usb-nop-xceiv: " Sascha Hauer
2017-01-16 10:50 ` [PATCH 12/23] of: partitions: force "partitions" subnode Sascha Hauer
2017-01-16 10:50 ` [PATCH 13/23] mci: Allow to partition eMMC boot partitions Sascha Hauer
2017-01-16 10:50 ` [PATCH 14/23] mci: imx-esdhci: remove wrong write protection test Sascha Hauer
2017-01-16 10:51 ` [PATCH 15/23] ARM: i.MX: Add i.MX7 base architecture support Sascha Hauer
2017-01-16 10:51 ` [PATCH 16/23] clk: i.MX: pllv3: Add support for the i.MX7 enet pll Sascha Hauer
2017-01-16 10:51 ` [PATCH 17/23] clk: imx: Add clk-cpu support Sascha Hauer
2017-01-16 10:51 ` [PATCH 18/23] clk: i.MX: Add clock support for i.MX7 Sascha Hauer
2017-01-16 10:51 ` [PATCH 19/23] clk: i.MX7: Add missing USB clocks Sascha Hauer
2017-01-16 10:51 ` [PATCH 20/23] ARM: i.MX: gpt: Add i.MX7 support Sascha Hauer
2017-01-16 11:35   ` Juergen Borleis
2017-01-16 10:51 ` [PATCH 21/23] pinmmux: i.MX: add pin mux support for i.MX7 Sascha Hauer
2017-01-16 10:51 ` [PATCH 22/23] serial: i.MX: add i.MX7 support Sascha Hauer
2017-01-16 10:51 ` [PATCH 23/23] ARM: i.MX: Add WaRP7 board support Sascha Hauer
2017-01-16 10:58 ` i.MX7 support Fabio Estevam
2017-01-16 12:58   ` Sascha Hauer
2017-01-17 12:07     ` Fabio Estevam
2017-01-18  7:07       ` Sascha Hauer
2017-01-18  9:36         ` Fabio Estevam
2017-01-19  9:14           ` Sascha Hauer
2017-01-19 11:54             ` Fabio Estevam
2017-01-19 12:38               ` Sascha Hauer [this message]
2017-01-19 17:32                 ` Fabio Estevam
2017-01-16 11:02 ` Belisko Marek
2017-01-16 11:38   ` Robert Schwebel
2017-01-16 11:51     ` Belisko Marek

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