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| | * | | | sh: fix watchdog timer for sh7780/sh7785Valentin R Sitsikov2009-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Valentin Sitdikov <valentin.sitdikov@siemens.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | sh: mac address through private data for sh_eth on ecovec24Magnus Damm2009-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the ecovec24 board code to pass the mac address to the sh_eth driver using platform data. Also, remove the static clock to allow Runtime PM. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | sh: add hwblk_id to sh_eth on ecovec24Magnus Damm2009-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add HWBLK_ETHER to the sh_eth platform device to allow Runtime PM of the ethernet hardware. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | Merge branch 'sh/stable-updates'Paul Mundt2009-10-26
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| | * | | | | sh: fix kexec by removing check for old kexec-toolsMagnus Damm2009-10-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This unbreaks kexec support. Without this fix all cases of kexec fails since __pa() does not behave like PHYSADDR(). The downside is that we also kill the code blocking users running old kexec-tools. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | Merge branch 'sh/stable-updates'Paul Mundt2009-10-25
| | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/sh/kernel/dwarf.c
| | * \ \ \ \ \ Merge branch 'sh/sdhi-mfd'Paul Mundt2009-10-25
| | |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/sh/boards/mach-ecovec24/setup.c arch/sh/boards/mach-kfr2r09/setup.c
| | | * | | | | | sh: mach-ecevec24: Add SDHI supportKuninori Morimoto2009-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | | | sh: SDHI platform data to the kfr2r09 boardMagnus Damm2009-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add SD Card support to the kfr2r09 board using the sh_mobile_sdhi driver hooked up to SDHI0 and yc304. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | | | sh: SDHI platform data to the SE7724 boardMagnus Damm2009-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add SD Card support to the se7724 board using the sh_mobile_sdhi driver hooked up to SDHI0 and CN7. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | | | sh: SDHI platform data to the AP325RXA boardMagnus Damm2009-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the AP325 board to use sh_mobile_sdhi for the SD Card connected to CN3 instead of mmc_spi. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | | | sh: SDHI platform data to the Migo-R boardMagnus Damm2009-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the Migo-R board to use sh_mobile_sdhi for the SD Card connected to CN9 instead of mmc_spi. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | sh: Add dma-mapping support for dma_alloc/free_coherent() overrides.Paul Mundt2009-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This moves the current dma_alloc/free_coherent() calls to a generic variant and plugs them in for the nommu default. Other variants can override the defaults in the dma mapping ops directly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | sh: Convert to asm-generic/dma-mapping-common.hPaul Mundt2009-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This converts the old DMA mapping support to the new generic dma-mapping-common.h abstraction. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | sh: Fix up cacheflush routine symbol exports.Paul Mundt2009-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes up flush_dcache_page() references by modules with run-time cache disabling. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | sh: Fix up uninitialized variable warning in dwarf unwinder.Paul Mundt2009-10-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | sh: Fix up smp_mb__xxx() memory barriers for SH-4A SMP.Paul Mundt2009-10-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the past these were simply wrapping to barrier() which was sufficient on SH SMP platforms predating SH-4A. Unfortunately due to ll/sc semantics an explicit synco is needed in these cases, which is sorted for us by just switching these over to smp_mb(). smp_mb() also has the benefit of being wrapped to barrier() in the UP and non-SH4A cases, so old behaviour is maintained for those parts. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | sh: Disable SCIF2 on the SH-X3 proto CPU.Paul Mundt2009-10-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SCIF2 and the FPU exceptions happen to share vector numbers, one in EXPEVT and the other in INTEVT. This is a violation of the interface and should have never made it in to silicon. On top of that, the demux hack that was added for special dispatch is rather error prone, and introduces more problems than it solves. Kill all of it off, and just refuse to deal with SCIF2 outright. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | sh: Convert to asm-generic/irqflags.h.Paul Mundt2009-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This simplifies the irqflags support by switching over to the asm-generic version. The necessary support functions are brought out-of-line for both SHcompact and SHmedia instruction sets. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | sh: Kill off legacy UBC wakeup cruft.Paul Mundt2009-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This code was added for some ancient SH-4 solution engines with peculiar boot ROMs that did silly things to the UBC MSTP bits. None of these have been in the wild for years, and these days the clock framework wraps up the MSTP bits, meaning that the UBC code is one of the few interfaces that is stomping MSTP bits underneath the clock framework. At this point the risks far outweigh any benefit this code provided, so just kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | Merge branch 'sh/stable-updates'Paul Mundt2009-10-16
| | |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/sh/Kconfig
| | * | | | | | | | sh: Support SCHED_MC for SH-X3 multi-cores.Paul Mundt2009-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables SCHED_MC support for SH-X3 multi-cores. Presently this is just a simple wrapper around the possible map, but this allows for tying in support for some of the more exotic NUMA clusters where we can actually do something with the topology. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | sh: Fix up IRQ re-enabling for the need_resched() case.Paul Mundt2009-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the case where need_resched() is set in between the cpu_idle() and pm_idle() calls we were missing an else case for just re-enabling local IRQs and bailing out. This was noticed by the irqs_disabled() warning, even though IRQs were being re-enabled elsewhere. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | sh: Make check_pgt_cache() more aggressive while idling.Paul Mundt2009-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This follows the x86 change and moves check_pgt_cache() up under the !need_resched() tight loop, rather than simply calling in to it when exiting idle. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | sh: Idle loop chainsawing for SMP-based light sleep.Paul Mundt2009-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This does a bit of chainsawing of the idle loop code to get light sleep working on SMP. Previously this was forcing secondary CPUs in to sleep mode with them not coming back if they didn't have their own local timers. Given that we use clockevents broadcasting by default, the CPU managing the clockevents can't have IRQs disabled before entering its sleep state. This unfortunately leaves us with the age-old need_resched() race in between local_irq_enable() and cpu_sleep(), but at present this is unavoidable. After some more experimentation it may be possible to layer on SR.BL bit manipulation over top of this scheme to inhibit the race condition, but given the current potential for missing wakeups, this is left as a future exercise. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | sh: Force boot CPU in to light sleep mode for SH-X3 SMP.Paul Mundt2009-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All of the secondary CPUs are forced in to light sleep mode, but we were missing the same initialization for the boot CPU. This resulted in inconsistent sleep modes depending on which CPU we were on, confusing the idle loop when not polling. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | Merge branch 'sh/stable-updates'Paul Mundt2009-10-16
| | |\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/sh/mm/cache-sh4.c
| | * | | | | | | | | sh: Count NMIs in irq_cpustat_t.Paul Mundt2009-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This plugs in support for NMI counting per-CPU via irq_cpustat_t. Modelled after the x86 implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | sh: TS_RESTORE_SIGMASK conversion.Paul Mundt2009-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace TIF_RESTORE_SIGMASK with TS_RESTORE_SIGMASK and define our own set_restore_sigmask() function. This saves the costly SMP-safe set_bit operation, which we do not need for the sigmask flag since TIF_SIGPENDING always has to be set too. Based on the x86 and powerpc change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | Merge branch 'sh/stable-updates'Paul Mundt2009-10-14
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| | * | | | | | | | | | sh: Only invalidate the I-cache range for secondary CPUs stack_start.Paul Mundt2009-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Secondary CPUs already take care of the D-cache bits through the common cache initialization path, and the only thing that is necessary after twiddling around with stack_start is ensuring that the I-cache changes are visible (particularly since this tends to be the only part lacking coherency). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | | sh: Provide CALLER_ADDRx definitions even when ftrace is disabled.Paul Mundt2009-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Despite being located in the ftrace header, the CALLER_ADDRx definitions are used by generic code. As such, we have to provide it generically, and given that there is no real dependence on ftrace in the first place, the definitions can just be moved out. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | | sh: ftrace: Make code modification NMI safe.Paul Mundt2009-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This cribs the x86 implementation of ftrace_nmi_enter() and friends to make ftrace_modify_code() NMI safe, particularly on SMP configurations. For additional notes on the problems involved, see the comment below ftrace_call_replace(). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | | sh: Don't profile return_address().Paul Mundt2009-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds return_address.c to the -pg exclusion list, as this is the building block for CALLER_ADDRx we do not want to profile this. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | | sh: Tidy up the dwarf module helpers.Paul Mundt2009-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables us to build the dwarf unwinder both with modules enabled and disabled in addition to reducing code size in the latter case. The helpers are also consolidated, and modified to resemble the BUG module helpers. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | | sh: Generalize CALLER_ADDRx support.Paul Mundt2009-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This splits out the unwinder implementation and adds a new return_address() abstraction modelled after the ARM code. The DWARF unwinder is tied in to this, returning NULL otherwise in the case of being unable to support arbitrary depths. This enables us to get correct behaviour with the unwinder enabled, as well as disabling the arbitrary depth support when frame pointers are enabled, as arbitrary depths with __builtin_return_address() are not supported regardless. With this abstraction it's also possible to layer on a simplified implementation with frame pointers in the event that the unwinder isn't enabled, although this is left as a future exercise. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | | Merge branch 'sh/stable-updates'Paul Mundt2009-10-12
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| | * \ \ \ \ \ \ \ \ \ \ Merge branch 'sh/stable-updates'Paul Mundt2009-10-12
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| | * \ \ \ \ \ \ \ \ \ \ \ Merge branch 'sh/ftrace' of git://github.com/mfleming/linux-2.6Paul Mundt2009-10-12
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| | | * | | | | | | | | | | | sh: tracing: Use the DWARF unwinder for CALLER_ADDRxMatt Fleming2009-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The major reason for implementing the DWARF unwinder in the first place was so that we could stop using __builtin_return_address(n), which doesn't work on SH for n > 0. Signed-off-by: Matt Fleming <matt@console-pimps.org>
| | * | | | | | | | | | | | | Merge branch 'sh/dwarf-unwinder'Paul Mundt2009-10-11
| | |\ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/sh/kernel/dwarf.c
| | | * \ \ \ \ \ \ \ \ \ \ \ \ Merge branch 'sh/dwarf-unwinder' of git://github.com/mfleming/linux-2.6 into ↵Paul Mundt2009-10-11
| | | |\ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sh/dwarf-unwinder
| | | | * | | | | | | | | | | | | sh: Remove any reference to recursive functions from commentsMatt Fleming2009-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Originally, dwarf_unwind_stack() was a recursive function and it seems that some of the old comments were never updated. Signed-off-by: Matt Fleming <matt@console-pimps.org>
| | | | * | | | | | | | | | | | | sh: Fix memory leak in dwarf_unwind_stack()Matt Fleming2009-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we broke out of the while (1) loop because the return address of "frame" was zero, then "frame" needs to be free'd before we return. Signed-off-by: Matt Fleming <matt@console-pimps.org>
| | | | * | | | | | | | | | | | | sh: Teach the DWARF unwinder about modulesMatt Fleming2009-10-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass a module's .eh_frame section to the DWARF unwinder at module load time so that the section's FDEs and CIEs can be registered with the DWARF unwinder. This allows us to unwind the stack through module code when generating backtraces. Signed-off-by: Matt Fleming <matt@console-pimps.org>
| | * | | | | | | | | | | | | | | sh: Reinstate ILSEL -> IRL intc mappings for SH-X3 proto CPU.Paul Mundt2009-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the multi-evt conversion for the SH-X3 proto CPU, IRLs were dropped down to a single unique masking source, which ended up blowing up on ILSEL-based IRQs which have special semantics that otherwise confuse the intc code. While this does result in intc spewing about not having a unique masking source, we don't really care. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | | | | | | | sh: Shut up CONFIG_32BIT=n compiler warnings.Paul Mundt2009-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | | | | | | | sh: Fold fixed-PMB support into dynamic PMB supportMatt Fleming2009-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The initialisation process differs for CONFIG_PMB and for CONFIG_PMB_FIXED. For CONFIG_PMB_FIXED we need to register the PMB entries that were allocated by the bootloader. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | | | | | | | sh: Fix the offset from P1SEG/P2SEG where we map RAMMatt Fleming2009-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to map the gap between 0x00000000 and __MEMORY_START in the PMB, as well as RAM. With this change my 7785LCR board can switch to 32bit MMU mode at runtime. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | | | | | | | | | sh: Remap physical memory into P1 and P2 in pmb_init()Matt Fleming2009-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eventually we'll have complete control over what physical memory gets mapped where and we can probably do other interesting things. For now though, when the MMU is in 32-bit mode, we map physical memory into the P1 and P2 virtual address ranges with the same semantics as they have in 29-bit mode. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-21 18:35:23 -0400