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* MIPS: BCM47xx: Really fix 128MB RAM problemHauke Mehrtens2010-08-051-8/+14
| | | | | | | | | | | | | | | | | | | The previous patch 4a86f2d27733f610e642649aca3e82e86fca9e22 (lmo) rsp. 84a6fcb368a080620d12fc4d79e07902dbee7335 (kernel.org) was wrong. The BCM47xx architecture maps the ram into a 128MB address space. It will be spaced there as often as goes into the 128MB. Detection tries to find the position where the same memory is found. When reading beyond 128MB the processor will throw an exception. If 128MB RAM is installed, it will not find a memory alias because it tries to read beyond the 128MB border. Now it just assumes 128MB installed ram if it can not find an alias. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1508/ Acked-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Nuke trailing blank linesRalf Baechle2010-02-271-1/+0
| | | | | | | Recent git versions now warn about those and they've always been a bit of an annoyance. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: BCM47xx: Fix 128MB RAM supportHauke Mehrtens2010-02-221-0/+8
| | | | | | | | | | | Ignoring the last page when ddr size is 128M. Cached accesses to last page is causing the processor to prefetch using address above 128M stepping out of the DDR address space. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/981/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Replace all usages of CL_SIZE by COMMAND_LINE_SIZEDmitri Vorobiev2009-12-171-5/+5
| | | | | | | | | | The MIPS-specific macro CL_SIZE is merely aliasing the macro COMMAND_LINE_SIZE. Other architectures use the latter; also, COMMAND_LINE_SIZE is documented in kernel-parameters.txt, so let's use it, and remove the alias. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Make local arrays with CL_SIZE static __initdataAtsushi Nemoto2009-11-131-1/+1
| | | | | | | | | | | | | Since commit 22242681cff52bfb7cba5d2a37b91802be7a4e4c ("MIPS: Extend COMMAND_LINE_SIZE"), CL_SIZE is 4096 and local array variables with this size will cause an build failure with default CONFIG_FRAME_WARN settings. Although current users of such array variables are all early bootstrap code and not likely to cause real stack overflow (thread_info corruption), it is preferable to to declare these arrays static with __initdata. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Add CFE support to BCM47XXAurelien Jarno2007-10-111-2/+111
| | | | | | | | | Add CFE support to the BCM47XX code. That includes querying CFE environment variables as well as using CFE to print messages before the serial port is initialized (early printk). Signed-off-by: Aurelien Jarno <aurel32@farad.aurel32.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Add support for BCM47XX CPUs.Aurelien Jarno2007-10-111-0/+49
Note that the BCM4710 does not support the wait instruction, this is not a mistake in the code. It originally comes from the OpenWrt patches. Cc: Michael Buesch <mb@bu3sch.de> Cc: Felix Fietkau <nbd@openwrt.org> Cc: Florian Schirmer <jolt@tuxbox.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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