From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: bootm + devicetree + much memory
Date: Fri, 10 Jan 2014 12:05:51 +0100 [thread overview]
Message-ID: <1389351959-20448-1-git-send-email-s.hauer@pengutronix.de> (raw)
Current bootm implementation on ARM has the problem with systems with
much memory. The devicetree is allocated with malloc(). On some systems
the malloc area is outside of the kernels lowmem, so the kernel can't
access the devicetree anymore. The complexity of the current code
makes it hard to solve, so this series contains several patches to
make the bootm code simpler before the actual problem is solved.
Sascha
----------------------------------------------------------------
Sascha Hauer (8):
list: add list_first_entry_or_null()
bootm: introduce bootm_load_os helper
ARM: bootm: move os loading to do_bootm_linux
bootm: introduce bootm_load_initrd helper
bootm: introduce bootm_load_devicetree helper
ARM: bootm: locate zImage higher into RAM
ARM: bootm: determine RAM start in separate function
ARM: bootm: pass free memory to __do_bootm_linux
arch/arm/lib/bootm.c | 164 ++++++++++++++++++++++++-------------
arch/blackfin/lib/blackfin_linux.c | 6 +-
arch/nios2/lib/bootm.c | 6 +-
arch/ppc/lib/ppclinux.c | 6 +-
common/bootm.c | 150 +++++++++++++++++++++++++++++++--
include/boot.h | 5 ++
include/linux/list.h | 11 +++
7 files changed, 278 insertions(+), 70 deletions(-)
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next reply other threads:[~2014-01-10 11:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-10 11:05 Sascha Hauer [this message]
2014-01-10 11:05 ` [PATCH 1/8] list: add list_first_entry_or_null() Sascha Hauer
2014-01-10 11:05 ` [PATCH 2/8] bootm: introduce bootm_load_os helper Sascha Hauer
2014-01-10 11:05 ` [PATCH 3/8] ARM: bootm: move os loading to do_bootm_linux Sascha Hauer
2014-01-10 11:05 ` [PATCH 4/8] bootm: introduce bootm_load_initrd helper Sascha Hauer
2014-01-10 11:05 ` [PATCH 5/8] bootm: introduce bootm_load_devicetree helper Sascha Hauer
2014-01-10 11:05 ` [PATCH 6/8] ARM: bootm: locate zImage higher into RAM Sascha Hauer
2014-01-10 11:05 ` [PATCH 7/8] ARM: bootm: determine RAM start in separate function Sascha Hauer
2014-01-10 11:05 ` [PATCH 8/8] ARM: bootm: pass free memory to __do_bootm_linux Sascha Hauer
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