From: Arnab Basu <arnab.basu@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/8] ARM: PSCI: Alow arch specific DT patching
Date: Thu, 28 Aug 2014 16:21:08 +0530 [thread overview]
Message-ID: <53FF099C.5080005@freescale.com> (raw)
In-Reply-To: <20140828101043.GF14650@leverpostej>
Hi Mark
On 08/28/2014 03:40 PM, Mark Rutland wrote:
> Hi Arnab,
>
> On Wed, Aug 27, 2014 at 09:29:55PM +0100, Arnab Basu wrote:
>> Both ARMv7 and ARMv8 need to patch the device tree but the kind
>> of patching done is different. This creates a function that can be
>> defined by each architecture to handle the differences
>
> I have no problem with the patch, but what is it that we need to do
> differently for ARMv7 and ARMv8?
>
In ARMv7 there does not seem to be any code around to set
"enable-method" to "spin-table". I guess it is assumed that DTs already
come with this set.
For ARMv8 we would like to assume that "enable-method" is missing from
the cpu node and will be set either to "spin-table" or "psci" by the
boot loader.
So the difference is, for ARMv7 the "enable-method" is only modified in
case of PSCI, whereas for ARMv8 it is always modified.
Thanks
Arnab
> Mark.
>
next prev parent reply other threads:[~2014-08-28 10:51 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-27 20:29 [U-Boot] [PATCH 0/8] PSCI v0.2 framework for ARMv8 Arnab Basu
2014-08-27 20:29 ` [U-Boot] [PATCH 1/8] ARM: PSCI: Update psci.h for psci v0.2 Arnab Basu
2014-11-08 7:43 ` Albert ARIBAUD
2014-11-08 8:11 ` [U-Boot] [PATCH 1/8] ARM: PSCI: Update psci.h for psci v0.2 -- CORRECTION Albert ARIBAUD
2014-08-27 20:29 ` [U-Boot] [PATCH 2/8] ARM: PSCI: Alow arch specific DT patching Arnab Basu
2014-08-28 10:10 ` Mark Rutland
2014-08-28 10:51 ` Arnab Basu [this message]
2014-08-28 12:47 ` Mark Rutland
2014-08-27 20:29 ` [U-Boot] [PATCH 3/8] ARMv8/fsl-lsch3: Refactor spin-table code Arnab Basu
2014-10-26 21:06 ` Albert ARIBAUD
2014-10-27 4:51 ` arnab.basu at freescale.com
2014-08-27 20:29 ` [U-Boot] [PATCH 4/8] ARMv8: PSCI: Add linker section to hold PSCI code Arnab Basu
2014-09-18 9:12 ` Albert ARIBAUD
2014-09-18 15:28 ` Marc Zyngier
2014-09-19 16:04 ` Albert ARIBAUD
2014-10-11 11:27 ` Albert ARIBAUD
2014-10-11 16:04 ` Marc Zyngier
2014-08-27 20:29 ` [U-Boot] [PATCH 5/8] ARMv8: PCSI: Add generic ARMv8 " Arnab Basu
2014-08-28 11:37 ` Mark Rutland
2014-08-27 20:29 ` [U-Boot] [PATCH 6/8] ARMv8: PSCI: Fixup the device tree for PSCI v0.2 Arnab Basu
2014-08-28 12:44 ` Mark Rutland
2014-08-29 14:03 ` Arnab Basu
2014-09-01 18:43 ` Mark Rutland
2014-09-02 11:17 ` Mark Rutland
2014-09-02 15:21 ` Stuart Yoder
2014-09-03 15:25 ` Mark Rutland
2014-08-27 20:30 ` [U-Boot] [PATCH 7/8] ARMv8: PSCI: Setup ARMv8 PSCI Arnab Basu
2014-08-27 20:30 ` [U-Boot] [PATCH 8/8] ARMv8: PSCI: Enable SMC Arnab Basu
2014-09-18 9:18 ` Albert ARIBAUD
2014-09-18 15:50 ` arnab.basu at freescale.com
2014-08-27 20:43 ` [U-Boot] [PATCH 0/8] PSCI v0.2 framework for ARMv8 Arnab Basu
2014-11-26 12:52 ` Jan Kiszka
2014-12-03 17:25 ` Mark Rutland
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