From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 0/2] Add bootcount support to SPL
Date: Wed, 2 Oct 2013 11:07:41 -0400 [thread overview]
Message-ID: <20131002150741.GG15917@bill-the-cat> (raw)
In-Reply-To: <CAP9ODKp=W8ZaTFp0WCmUwRJX+MqTkPL3A9J9bapAhwPyyBRX0g@mail.gmail.com>
On Fri, Sep 27, 2013 at 10:20:52PM -0300, Otavio Salvador wrote:
> On Fri, Sep 27, 2013 at 4:26 PM, Tom Rini <trini@ti.com> wrote:
> > The following patches depend on the series I posted earlier that adds
> > environment support to SPL as well as the series that converts the
> > davinci bootcount driver to support am335x as well. The most obvious
> > issue to me as that as Scott pointed out with the last series, this
> > would be clearer Kconfig where we wouldn't need to introduce
> > CONFIG_SPL_BOOTCOUNT_SUPPORT and just re-use CONFIG_BOOTCOUNT_SUPPORT.
> > Other than that, I think things look good. It may be possible to
> > re-jigger bootcount drivers to allow counting for both SPL and full
> > U-Boot to happen, if that's strongly desired but the way I see this
> > being used is to fall-back to a failsafe full U-Boot to do what's needed
> > there.
>
> I think we need to count both; the SPL part solves the U-Boot failsafe
> but the full U-Boot is needed to failsafe the OS.
It's _possible_ we could split the counter up further, 16bit magic, 8
bit SPL count, 8 bit U-Boot count. But I'm not sure if it's useful.
Looking at Stefan's patch, we count in SPL, and use altbootcmd in full
U-Boot to know we have failure rather than just booting fully via
U-Boot.
--
Tom
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prev parent reply other threads:[~2013-10-02 15:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-27 19:26 [U-Boot] [PATCH 0/2] Add bootcount support to SPL Tom Rini
2013-09-27 19:26 ` [U-Boot] [PATCH 1/2] SPL: Add CONFIG_SPL_BOOTCOUNT_SUPPORT Tom Rini
2013-09-30 6:37 ` Stefan Roese
2013-10-02 13:14 ` Tom Rini
2013-09-27 19:26 ` [U-Boot] [PATCH 2/2] am335x: Switch to CONFIG_SPL_BOOTCOUNT_SUPPORT Tom Rini
2013-09-28 1:20 ` [U-Boot] [PATCH 0/2] Add bootcount support to SPL Otavio Salvador
2013-10-02 15:07 ` Tom Rini [this message]
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