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2011-06-24ARM: pm: pxa: move cpu_suspend into C codeRussell King1-52/+6
We don't need a veneer for cpu_suspend, it can be called directly from C code now. Move it into the PXA CPU suspend functions, along with the accumulator register saving/restoring. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-24ARM: pm: convert cpu_suspend() to a normal functionRussell King1-3/+10
cpu_suspend() has a weird calling method which makes it only possible to call from assembly code: it returns with a modified stack pointer to finish the suspend, but on resume, it 'returns' via a provided pointer. We can make cpu_suspend() appear to be a normal function merely by swapping the resume pointer argument and the link register. Do so, and update all callers to take account of this more traditional behaviour. Acked-by: Frank Hofmann <frank.hofmann@tomtom.com> Tested-by: Kevin Hilman <khilman@ti.com> Acked-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-24ARM: pm: move sa1100 to use proper suspend func arg0Russell King1-4/+4
In the previous commit, we introduced an official way to supply an argument to the suspend function. Convert the sa1100 suspend code to use this method. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-22ARM: pm: convert PXA to generic suspend/resume supportRussell King1-176/+15
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-06Merge branch 'devel-stable' into develRussell King1-1/+1
Conflicts: arch/arm/mach-pxa/clock.c arch/arm/mach-pxa/clock.h
2011-01-03ARM: pxa: fix page table corruption on resumeAric D. Blumer1-2/+2
Before this patch, the following error would sometimes occur after a resume on pxa3xx: /path/to/mm/memory.c:144: bad pmd 8040542e. The problem was that a temporary page table mapping was being improperly restored. The PXA3xx resume code creates a temporary mapping of resume_turn_on_mmu to avoid a prefetch abort. The pxa3xx_resume_after_mmu code requires that the r1 register holding the address of this mapping not be modified, however, resume_turn_on_mmu does modify it. It is mostly correct in that r1 receives the base table address, but it may also get other bits in 13:0. This results in pxa3xx_resume_after_mmu restoring the original mapping to the wrong place, corrupting memory and leaving the temporary mapping in place. Signed-off-by: Matt Reimer <mreimer@sdgsystems.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-12-16ARM: pxa: Access SMEMC via virtual addressesMarek Vasut1-1/+1
This is important because on PXA3xx, the physical mapping of SMEMC registers differs from the one on PXA2xx. In order to get PCMCIA working on both PXA2xx and PXA320, the PCMCIA driver was adjusted accordingly as well. Also, various places in the kernel had to be patched to use __raw_read/__raw_write. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-08-05[ARM] pxa: removing dead XSCALE_CACHE_ERRATAChristoph Egger1-7/+0
XSCALE_CACHE_ERRATA doesn't exist in Kconfig, therefore removing all references for it from the source code. Signed-off-by: Christoph Egger <siccegge@cs.fau.de> Cc: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-03-09[ARM] pxa: separate definitions from pxa-regs.h and remove it finallyEric Miao1-1/+0
The remaining registers are separated into: - <mach/regs-ost.h> - <mach/regs-rtc.h> - <mach/regs-intc.h> and then we can remove pxa-regs.h completely. Instead of #include this file, let's: 1. include the specific <mach/regs-*.h> with care (if that's absolutely necessary) 2. define the registers in the driver, make cleanly defined API to expose the register access to external with sufficient reason Signed-off-by: Eric Miao <eric.miao@marvell.com>
2008-08-07[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King1-3/+3
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07[ARM] Remove asm/hardware.h, use asm/arch/hardware.h insteadRussell King1-1/+1
Remove includes of asm/hardware.h in addition to asm/arch/hardware.h. Then, since asm/hardware.h only exists to include asm/arch/hardware.h, update everything to directly include asm/arch/hardware.h and remove asm/hardware.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-02-04[ARM] pxa: add preliminary suspend/resume code for pxa3xxeric miao1-0/+102
1. clear RDH bit after resuming back from D3, otherwise, the multi function pins will retain the low power state 2. save/restore essential system registers Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-01-26[ARM] pxa: omit PXA25x or PXA27x standby/sleep code as appropriateRussell King1-2/+6
There's no point building standby/sleep code for processors which aren't configured. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-01-26[ARM] pxa: move memory controller registers into pxa2xx-regs.hRussell King1-0/+1
PXA3 has a different memory controller from PXA2 platforms. Avoid clashing definitions by moving the PXA2 definitions to pxa2xx-regs.h Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-01-20[ARM] pxa: don't rely on r2 being preserved over a function callRussell King1-4/+2
r2 is not guaranteed to be preserved over a function call, so relying on it to store the link register over the call to sleep_phys_sp() is unreliable. Store the link register on the stack instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-20[ARM] 4489/1: pxa: split pxa_cpu_suspend to processor specific onesEric Miao1-39/+73
1. split pxa_cpu_suspend to pxa25x_cpu_suspend and pxa27x_cpu_suspend and make pxa25x_cpu_pm_enter() and pxa27x_cpu_pm_enter() to invoke the corresponding _suspend functions, thus remove all those ugly #ifdef .. #endif out of sleep.S 2. move the declarations of those suspend functions to pm.h note: this is not a clean enough solution until all the pxa25x and pxa27x specific part is further removed out of sleep.S, sleep.S is supposed to contain generic code only Signed-off-by: eric miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel1-1/+0
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-25[ARM] Remove MODE_(SVC|IRQ|FIQ|USR) and DEFAULT_FIQRussell King1-1/+1
DEFAULT_FIQ was entirely unused. MODE_* are just redefinitions of *_MODE. Use *_MODE instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-28[ARM] 2787/2: PXA27x low power modes supportTodd Poynor1-2/+5
Patch from Todd Poynor Add symbols for PXA2xx PWRMODE register M field that selects low-power mode, replace unadorned constants. Honor power mode parameter of pxa_cpu_suspend(mode), no longer force to 3 (sleep). Full Deep Sleep low-power mode support for PXA27x is pending generic PM interfaces to select more than 2 suspend-to-RAM-style power modes, but this is expected soon. This can be hardcoded in the meantime by replacing the pxa_cpu_suspend() parameter value. From David Burrage and Todd Poynor. Try #2 removes one of the register copies and moves the code to save the pxa_cpu_suspend parameter to immediately surround the call that requires the parameter value be preserved. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-04-25[PATCH] ARM: 2650/1: PXA27x sleep - workaround Errata 39 & 50 (Patch 2667)Jeff Lackey1-6/+50
Patch from Jeff Lackey This patch updates arch/arm/mach-pxa/sleep.S to support the PXA270 CPU. It works around Errata 39 & 50 from the Intel(R) PXA27x Processor Family Specification Update. Signed-off-by: Jeff Lackey Signed-off-by: Russell King
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+194
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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