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* [POWERPC] Copy over headers from arch/ppc to arch/powerpc that we needKumar Gala2007-08-22
| | | | | | | | | | | To build arch/powerpc without including asm-ppc/ we need these files in asm-powerpc/ Moved some headers under arch/powerpc/platforms if they were only used by platform or driver files and fixed up the source file includes to match the new locations Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Remove old includes from arch/ppcKumar Gala2007-08-22
| | | | | | | | | | | | | | | | | Remove includes of files that existed in arch/ppc that we dont need in arch/powerpc anymore. The following includes were removed: <asm/amigappc.h> <asm/bootinfo.h> <asm/ppcboot.h> <asm/ppc_sys.h> <asm/residual.h> <asm/m8260_pci.h> This also caused platforms/embedded6xx/mpc7448_hpc2.h to no longer be needed and thus removed. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Exception numbers are not relevant to iSeriesStephen Rothwell2007-08-22
| | | | | | | so remove them from the macros. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Split out iSeries specific exception macrosStephen Rothwell2007-08-22
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Move the iSeries exception vectorsStephen Rothwell2007-08-22
| | | | | | | out of head_64.S and into platforms/iseries/exception.S Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Move the exception macros into a header fileStephen Rothwell2007-08-22
| | | | | | | | | | | | | | | | | | It makes head_64.S a bit more readable and will allow us to move the iSeries exceptions elsewhere. This also removes the last line of the comment: * The following macros define the code that appears as * the prologue to each of the exception handlers. They * are split into two parts to allow a single kernel binary * to be used for pSeries and iSeries. * LOL. One day... - paulus Anything is possible. :-) Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Move iSeries startup code out of head_64.SStephen Rothwell2007-08-22
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Rework SMP timebase handoff for pasemiOlof Johansson2007-08-22
| | | | | | | | | | | | | Rework timebase handoff to play nice with configurations with more than 2 cores, as well as with CPU hotplug. Previous scheme just pushed out the current timebase from the giving core to all cores without caring if they wanted it or not, nor checking if they'd taken it. The taking side didn't make sure the giving side had provided a value yet either. In other words, it was completely broken. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Add PowerQUICC II (82xx with CPM) cuboot supportScott Wood2007-08-22
| | | | | | | | | | | | This allows booting on legacy, non-device-tree aware versions of U-boot. It also fixes up the hardware to match the PCI and chipselect information in the device tree, as u-boot is inconsistent in setting these up correctly (or at all). Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Add 8xx cuboot supportScott Wood2007-08-22
| | | | | | | | This allows booting on legacy, non-device-tree aware versions of U-boot. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Move linker symbols into ops.hScott Wood2007-08-22
| | | | | | | | Most of these were previously used by numerous C files and redeclared in each one. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Add CPM serial driverScott Wood2007-08-22
| | | | | | | | | | | This serial port is used on all 8xx, many 82xx, and some 85xx chips. The driver requires that the port has already been set up by the firmware and/or platform code. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Declare udelay() in ops.hScott Wood2007-08-22
| | | | | | | Declarations in various users are removed. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: serial_console_init() fixesScott Wood2007-08-22
| | | | | | | | | | | | | | 1. Search the entire compatible list for serial devices. The serial code previously did a simple strcmp on the compatible node; this fails when the match string is not the first compatible listed. Use dt_is_compatible() instead. 2. Don't call serial_edit_cmdline if getc isn't defined. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Add TARGET_HAS_ETHn tests to ppcboot.hScott Wood2007-08-22
| | | | | | | | | | | | | | U-boots more recent than when ppcboot.h was forked allow the board config file to enable additional ethernet ports explicitly, rather than using a hardcoded list of targets. This allows bootwrapper platform files to do the same. Fortunately, nothing after the ethernet addresses is of interest to cuboot platforms, so the inevitable mismatches won't be too catastrophic. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Add 16-bit I/O, sync(), eieio(), and barrier()Scott Wood2007-08-22
| | | | | | | | Also, include types.h from io.h, so callers don't have to. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Add dt_is_compatible()Scott Wood2007-08-22
| | | | | | | | | This can be used rather than doing a simple strcmp, which will fail to handle multiple compatible entries. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: dt_xlate_range() bugfixesScott Wood2007-08-22
| | | | | | | | | | | | | | | 1. The check whether ranges fits in the buffer was using elements rather than bytes. 2. Empty ranges were not properly treated as transparent, and missing ranges were treated as transparent. 3. The loop terminated when translating from the root rather than to. Once bug #2 was fixed, it failed due to a missing ranges in the root node. 4. In decoding the ranges property, the #size-cells used was that of the parent, not the child. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Set timebase_period_ns from dt_fixup_cpu_clocksScott Wood2007-08-22
| | | | | | | | This lets udelay() work properly on platforms which use dt_fixup_cpu_clocks. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Update .gitignoreScott Wood2007-08-22
| | | | | | | | | All cuImage types are ignored, as well as preprocessed .lds files, and the forthcoming zImage.bin files and embedded planet board images. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Whitespace cleanup in arch/powerpcScott Wood2007-08-22
| | | | | Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] iSeries: Clean up lparmap messStephen Rothwell2007-08-22
| | | | | | | | | | We need to have xLparMap in head_64.S so that it is at a fixed address (because the linker will not resolve (address & 0xffffffff) for us). But the assembler miscalculates the KERNEL_VSID() expressions. So put the confusing expressions into asm-offsets.c. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Advertise correct IDE mode on Pegasos2Olaf Hering2007-08-22
| | | | | | | | | | | | | | The built-in IDE controller is configured in legacy mode, but the PCI registers advertise native mode. Force the PCI class into legacy mode. This allows pata_via to access two drives. The Pegasos specific irq enforcement in the via82cxxx driver must stay because there is apparently no generic way to setup irq per channel. Tested on Pegasos2 with firmware version 20040810, and two IDE disks. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Bamboo zImage wrapperJosh Boyer2007-08-20
| | | | | | | | Add a bootwrapper for the AMCC 440EP Bamboo Eval board. This also adds a common fixup_clock function for all 440EP(x) chips. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
* [POWERPC] Bamboo board supportJosh Boyer2007-08-20
| | | | | | | Add support for the AMCC Bamboo board Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
* [POWERPC] Bamboo DTSJosh Boyer2007-08-20
| | | | | | AMCC Bamboo board DTS Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* [POWERPC] Fix 40x buildJosh Boyer2007-08-20
| | | | | | | Remove inclusion of __res on 40x. We don't need it in arch/powerpc Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
* [POWERPC] 40x decrementer fixesJosh Boyer2007-08-20
| | | | | | | | Allow generic_calibrate_decr to work for 40x platforms. Given that the hardware behavior is identical, this also changes the set_dec function to reload the PIT on 40x to match the behavior 44x currently has. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* [POWERPC] 40x MMUJosh Boyer2007-08-20
| | | | | | | Add MMU definitions for 40x platforms. Also fixes two warnings in 40x_mmu.c. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
* [POWERPC] 4xx bootwrapper reworksJosh Boyer2007-08-20
| | | | | | | | Make the fixup_memsize function common for all of 4xx as several chips share the same SDRAM controller. Also add functions to reset 40x chips and quiesce the ethernet. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* [POWERPC] Rename 44x bootwrapperJosh Boyer2007-08-20
| | | | | | | | Rename the 44x.c wrapper file to 4xx.c. This will allow us to add common functions in a single file that can be shared across all of 4xx. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
* [POWERPC] 4xx Kconfig cleanupJosh Boyer2007-08-20
| | | | | | | | Remove some leftover cruft in the 40x Kconfig file. Also make sure we select WANT_DEVICE_TREE for 40x. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
* [POWERPC] Rename 4xx paths to 40xJosh Boyer2007-08-20
| | | | | | | | 4xx is a bit of a misnomer for certain things, as they really apply to PowerPC 40x only. Rename some of the files to clean this up. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
* [POWERPC] Remove some duplicate declarations from pmac.hStephen Rothwell2007-08-16
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix i2c device string formatGuennadi Liakhovetski2007-08-16
| | | | | | | | Use strlcpy() to guarantee strings in i2c device type and driver_name fields are 0-terminated. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix section mismatch in pasemi/iommu.cStephen Rothwell2007-08-16
| | | | | | | | | | These functions are only called by __init functions. WARNING: vmlinux.o(.text+0x56aa0): Section mismatch: reference to .init.text:.lmb_alloc (between '.iob_init' and '.iommu_init_early_pasemi') Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix section mismatches in udbg_adb.cStephen Rothwell2007-08-16
| | | | | | | | | | | The functions are only called from __init functions. WARNING: vmlinux.o(.text+0x45ed0): Section mismatch: reference to .init.text:.btext_find_display (between '.udbg_adb_init_early' and '.udbg_adb_init') WARNING: vmlinux.o(.text+0x45f9c): Section mismatch: reference to .init.text:.btext_find_display (between '.udbg_adb_init' and '.udbg_adb_getc_poll') WARNING: vmlinux.o(.text+0x46000): Section mismatch: reference to .init.text:.find_via_pmu (between '.udbg_adb_init' and '.udbg_adb_getc_poll') Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix section mismatch in dart_iommu.cStephen Rothwell2007-08-16
| | | | | | | | | These functions are only called from __init functions. WARNING: vmlinux.o(.text+0x398f4): Section mismatch: reference to .init.text:.lmb_alloc (between '.iommu_init_early_dart' and '.pci_dma_bus_setup_dart') Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix section mismatch in crash_dump.cStephen Rothwell2007-08-16
| | | | | | | WARNING: vmlinux.o(.text+0x23258): Section mismatch: reference to .init.text:.lmb_reserve (between '.reserve_kdump_trampoline' and '.restore_processor_state') Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Improve robustness of the UIC cascade handlerDavid Gibson2007-08-16
| | | | | | | | | | | | | | | | At present the cascade interrupt handler for the UIC (interrupt controller on 4xx embedded chips) will misbehave badly if it is called spuriously - that is if the handler is invoked when no interrupts are asserted in the child UIC. Although spurious interrupts shouldn't happen, it's good to behave robustly if they do. This patch does so by checking for and ignoring spurious interrupts. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix irq flow handler for 4xx UICDavid Gibson2007-08-16
| | | | | | | | | | | | | | | | | | | | | | | | | At present the driver for the UIC (the embedded interrupt controller in 4xx chips) uses the handle_level_irq() flow handler. It turns out this does not correctly handle level triggered interrupts on the UIC. Specifically, acknowledging an irq on the UIC (i.e. clearing the relevant bit in UIC_SR) will have no effect for a level interrupt which is still asserted by the external device, even if the irq is already masked. Therefore, unlike handle_level_irq() we must ack the interrupt after invoking the ISR (which should cause the device to stop asserting the irq) instead of acking it when we mask it, before the ISR. This patch implements this change, in a new handle_uic_irq(), a customised irq flow handler for the UIC. For edge triggered interrupts, handle_uic_irq() still uses the old flow - we must ack edge triggered interrupt before the ISR not after, or we could miss a second event which occurred between invoking the ISR and acking the irq. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix setting of irq trigger type in UIC driverDavid Gibson2007-08-16
| | | | | | | | | | | | | | | The UIC (interrupt controller in 4xx embedded CPUs) driver currently missets the IRQ_lEVEL flag in desc->status, due to a thinko. This patch fixes the bug. Currently this is only a cosmetic problem (affects the output in /proc/interrupts), however subsequent patches will use the IRQ_LEVEL flag to affect flow handling. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Tidy up CONFIG_PPC_MM_SLICES codeStephen Rothwell2007-08-16
| | | | | | | This removes some of the #ifdefs from .c files. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix non HUGETLB_PAGE build warningStephen Rothwell2007-08-16
| | | | | | | | arch/powerpc/mm/mmu_context_64.c: In function 'init_new_context': arch/powerpc/mm/mmu_context_64.c:31: warning: unused variable 'new_context' Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Handle alignment faults on new FP load/store instructionsPaul Mackerras2007-08-16
| | | | | | | | | | | | | | | | | | | | | | | | | This adds code to handle alignment traps generated by the following new floating-point load/store instructions, by emulating the instruction in the kernel (as is done for other instructions that generate alignment traps): lfiwax load floating-point as integer word algebraic indexed stfiwx store floating-point as integer word indexed lfdp load floating-point double pair lfdpx load floating-point double pair indexed stfdp store floating-point double pair stfdpx store floating-point double pair indexed All these except stfiwx are new in POWER6. lfdp/lfdpx/stfdp/stfdpx load and store 16 bytes of memory into an even/odd FP register pair. In little-endian mode each 8-byte value is byte-reversed separately (i.e. not as a 16-byte unit). lfiwax/stfiwx load or store the lower 4 bytes of a floating-point register from/to memory; lfiwax sets the upper 4 bytes of the FP register to the sign extension of the value loaded. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] pseries: Remove dead EEH video codeLinas Vepstas2007-08-16
| | | | | | | | | | | | | | | Remove dead code, and a misleading comment about EEH checking for video devices. The removed code is a left-over from the olden days where there was concern over how video devices worked in Linux. We are never going to go that way again, so kill this. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/eeh.c | 17 ----------------- 1 file changed, 17 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove gratuitous reads from powermac pci config space methodsNathan Lynch2007-08-16
| | | | | | | | | | | | | | | | | The powermac pci configuration space write methods read the written location immediately after the write is performed, presumably in order to flush the write. However, configuration space writes are not allowed to be posted, making these reads gratuitous. Furthermore, this behavior potentially causes us to violate the PCI PM spec when changing between e.g. D0 and D3 states, because a delay of up to 10ms may be required before the OS accesses configuration space after the write which initiates the transition. Remove the unnecessary reads from macrisc_write_config, u3_ht_write_config, and u4_pcie_write_config. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove gratuitous reads from pasemi pci config space methodsNathan Lynch2007-08-16
| | | | | | | | | | | | | | | | | The pasemi pci configuration space write method reads the written location immediately after the write is performed, presumably in order to flush the write. However, configuration space writes are not allowed to be posted, making these reads gratuitous. Furthermore, this behavior potentially causes us to violate the PCI PM spec when changing between e.g. D0 and D3 states, because a delay of up to 10ms may be required before the OS accesses configuration space after the write which initiates the transition. Remove the unnecessary reads from pa_pxp_write_config. Signed-off-by: Nathan Lynch <ntl@pobox.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] tsi108_direct_pci_ops: Use named structure member initializersNathan Lynch2007-08-16
| | | | | Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] indirect_pci_ops: Use named structure member initializersNathan Lynch2007-08-16
| | | | | Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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