linux-toradex.git/arch/arm/kernel/head-common.S, branch v3.9.2 Linux kernel for Apalis and Colibri modules arm/dt: Make __vet_atags also accept a dtb image 2011-05-11T13:12:32+00:00 Grant Likely grant.likely@secretlab.ca 2011-04-28T20:27:20+00:00 4c2896e88d976d0e5b2213c64cde885f5677fa2b The dtb is passed to the kernel via register r2, which is the same method that is used to pass an atags pointer. This patch modifies __vet_atags to not clear r2 when it encounters a dtb image. v2: fixed bugs pointed out by Nicolas Pitre Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> 
The dtb is passed to the kernel via register r2, which is the same
method that is used to pass an atags pointer.  This patch modifies
__vet_atags to not clear r2 when it encounters a dtb image.

v2: fixed bugs pointed out by Nicolas Pitre

Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
ARM: Defer lookup of machine_type to setup.c 2011-02-15T16:36:44+00:00 Russell King rmk+kernel@arm.linux.org.uk 2011-01-12T17:50:42+00:00 6fc31d54443bdc25a8166be15e3920a7e39d195d Since the debug macros no longer depend on the machine type information, the machine type lookup can be deferred to setup_arch() in setup.c which simplifies the code somewhat. We also move the __error_a functionality into setup.c for displaying a message when a bad machine ID is passed to the kernel via the LL debug code. We also log this into the kernel ring buffer which makes it possible to retrieve the message via a debugger. Original idea from Grant Likely. Acked-by: Grant Likely <grant.likely@secretlab.ca> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Since the debug macros no longer depend on the machine type information,
the machine type lookup can be deferred to setup_arch() in setup.c which
simplifies the code somewhat.

We also move the __error_a functionality into setup.c for displaying a
message when a bad machine ID is passed to the kernel via the LL debug
code.  We also log this into the kernel ring buffer which makes it
possible to retrieve the message via a debugger.

Original idea from Grant Likely.

Acked-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: fix missing branch in __error_a 2011-01-15T11:19:19+00:00 Russell King rmk+kernel@arm.linux.org.uk 2011-01-15T11:19:19+00:00 cb4d3eaebb96616085f5a46a7d7e004ddd955b09 When DEBUG_LL is not set, we don't want __error_a re-entering __lookup_machine_type - we want it to go to the error function. This used to be the case before we reorganized the layout for hotplug cpu, as we used to fall through to __error. With the changed layout, we need an explicit branch here instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
When DEBUG_LL is not set, we don't want __error_a re-entering
__lookup_machine_type - we want it to go to the error function.  This
used to be the case before we reorganized the layout for hotplug cpu,
as we used to fall through to __error.  With the changed layout, we
need an explicit branch here instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Merge branch 'hotplug' into devel 2010-10-18T21:34:47+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-10-18T21:34:47+00:00 a0a55682b83fd5f012afadcf415b030d7424ae68 Conflicts: arch/arm/kernel/head-common.S 
Conflicts:
	arch/arm/kernel/head-common.S
ARM: cleanup lookup_machine_type data and ensure these are placed in __HEAD 2010-10-08T09:07:34+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-10-04T16:45:25+00:00 80924ac595f3ca32ec0a80cc1217c7019d3519ff Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: hotplug cpu: move __error and __error_p to cpuinit section 2010-10-08T09:07:33+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-10-04T16:39:20+00:00 c083c6609b290a650894f846270a9233401adc22 __error and __error_p may be used by secondary CPUs, so these need to be in the cpuinit section. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
__error and __error_p may be used by secondary CPUs, so these
need to be in the cpuinit section.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: move __mmap_switched, C-API functions to init section 2010-10-08T09:07:33+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-10-04T15:29:35+00:00 17bb5e2c1706c7296eec96e97be0d760e59f282c Move these functions, which are only ever used during boot CPU initialization, to the init section. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Move these functions, which are only ever used during boot CPU
initialization, to the init section.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: cleanup boot cpu calling __mmap_switched 2010-10-08T09:07:32+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-10-04T15:22:34+00:00 a4ae41341fd39af6e25ec9861a6a4dc0c5c58b16 This allows us to relocate __mmap_switched and associated data away from the head section. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
This allows us to relocate __mmap_switched and associated data away
from the head section.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: hotplug cpu: Keep processor information, startup code & __lookup_processor_type 2010-10-08T09:07:32+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-10-01T14:37:05+00:00 5085f3ff458521045f7e43da62b8c30ea7df2e82 When hotplug CPU is enabled, we need to keep the list of supported CPUs, their setup functions, and __lookup_processor_type in place so that we can find and initialize secondary CPUs. Move these into the __CPUINIT section. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
When hotplug CPU is enabled, we need to keep the list of supported CPUs,
their setup functions, and __lookup_processor_type in place so that we
can find and initialize secondary CPUs.  Move these into the __CPUINIT
section.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: vmlinux.lds: Refer to start of .data using _sdata rather than _data 2010-10-08T09:02:24+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-10-01T13:12:22+00:00 842eab40b6920819fff5caeefdb709f07d3f8e23 Use _sdata as the start of the data section, rather than _data. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Use _sdata as the start of the data section, rather than _data.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>