From: Timur Tabi <b04825@freescale.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>,
Li Yang-R58472 <r58472@freescale.com>
Subject: Re: [PATCH 1/2] powerpc/85xx: fix problem that prevents PHYS_64BIT from configurable
Date: Fri, 17 Feb 2012 17:01:09 -0600 [thread overview]
Message-ID: <4F3EDC35.5070904@freescale.com> (raw)
In-Reply-To: <1329513033.3980.1.camel@pasglop>
So I noticed something else. PHYS_64BIT is not defined in
mpc85xx_smp_defconfig. This means that if we want to build a 36-bit
kernel, we need to have "select PHYS_64BIT" in the Kconfig for that board.
This is what we have today for the P1022DS.
However, that select statement also means that we can't build a 32-bit
kernel. This is a problem for mpc85xx_defconfig, because that defconfig
includes support for the MPC8540ADS. The 8540 has an e500v1 core which
doesn't support MAS7 (i.e. no 36-bit physical addresses).
So any patch that removes "select PHYS_64BIT" from an mpc85xx_defconfig
board must also turn on that option in the defconfig. The patches from me
and Leo don't do that.
--
Timur Tabi
Linux kernel developer at Freescale
next prev parent reply other threads:[~2012-02-17 23:01 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-16 12:10 [PATCH 1/2] powerpc/85xx: fix problem that prevents PHYS_64BIT from configurable Li Yang
2012-02-16 12:10 ` [PATCH 2/2] powerpc/85xx: add a 36-bit corenet default config Li Yang
2012-02-16 15:56 ` [PATCH 1/2] powerpc/85xx: fix problem that prevents PHYS_64BIT from configurable Tabi Timur-B04825
2012-02-16 15:57 ` Tabi Timur-B04825
2012-02-17 1:27 ` Kumar Gala
2012-02-17 4:32 ` Li Yang-R58472
2012-02-17 8:43 ` Benjamin Herrenschmidt
2012-02-17 16:22 ` Tabi Timur-B04825
2012-02-17 21:10 ` Benjamin Herrenschmidt
2012-02-17 21:17 ` Timur Tabi
2012-02-17 23:01 ` Timur Tabi [this message]
2012-02-18 0:56 ` Scott Wood
2012-02-18 2:19 ` Benjamin Herrenschmidt
2012-02-20 20:30 ` Scott Wood
2012-02-17 8:42 ` Benjamin Herrenschmidt
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