- 18 Apr, 2008 14 commits
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Paul Mackerras authored
64-bit powerpc processors can find the leftmost 1 bit in a 64-bit doubleword in one instruction, so use that rather than using the generic fls64(), which does two 32-bit fls() calls. Signed-off-by:Paul Mackerras <paulus@samba.org>
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Benjamin Herrenschmidt authored
This adds the low level irq tracing hooks to the powerpc architecture needed to enable full lockdep functionality. This is partly based on Johannes Berg's initial version. I removed the asm trampoline that isn't needed (thus improving performance) and modified all sorts of bits and pieces, reworking most of the assembly, etc... Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Christoph Hellwig authored
This adds stacktrace support for powerpc, which will be needed for lockdep. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Benjamin Herrenschmidt authored
This moves various definitions used all over the place to parse stack frames to ptrace.h so only one definition is needed. Signed-off-by:
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Benjamin Herrenschmidt authored
Lockdep found out that we can occasionally take the device-tree lock for reading from softirq time (from rtas_token called by the rtas real time clock code called by the NTP code), while we take it occasionally for writing without masking interrupts. The combination of those two can thus deadlock. While some of those cases of interrupt read lock could be fixed (such as caching the RTAS tokens) I figured that taking the lock for writing is so rare (device-tree modification) that we may as well penalize that case and allow reading from interrupts. Thus, this turns all the writers to take the lock with irqs masked to avoid the situation. Signed-off-by:
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Trent Piepho authored
A) It's not modified and so it can be made const. const is good. B) If one has a function that was given a const pci_bus pointer and you want to get a pointer to its pci_controller, you'll get a warning from gcc when you use pci_bus_to_host(). This is the right way to stop that warning. Signed-off-by:
Trent Piepho <tpiepho@freescale.com> Acked-by:
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Olof Johansson authored
Remove the __max_memory variable, as it is not referenced anywhere in the tree besides some code in arch/ppc. Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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Michael Ellerman authored
The xics code currently has a direct and lpar variant of xics_host_map, the only difference being which irq_chip they use. If we remember which irq_chip we're using we can combine these two routines. That also allows us to have a single irq_host_ops instead of two. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Acked-by:
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Michael Ellerman authored
pseries_mpic_init_IRQ() implements the same logic as the xics code did to find the i8259 cascade irq. Now that we've pulled that logic out into pseries_setup_i8259_cascade() we can use it in the mpic code. Signed-off-by:
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Michael Ellerman authored
Remove the xics references from xics_setup_8259_cascade(), and merge the good bits from the almost identical logic in pseries_mpic_init_IRQ(). Signed-off-by:
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Michael Ellerman authored
The code in xics.c to setup the i8259 cascaded irq handler is not really xics specific, so move it into setup.c - we will clean this up further in a subsequent patch. Signed-off-by:
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Alexander van Heukelum authored
Powerpc and ppc have some code in their bitops.h that is exactly the same as asm-generic/bitops/find.h. Include this header instead of the private implementation. Signed-off-by:
Alexander van Heukelum <heukelum@fastmail.fm> Signed-off-by:
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Paul Mackerras authored
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- 17 Apr, 2008 26 commits
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Anton Vorontsov authored
Currently USB Host isn't functional on the MPC8315E boards, for two reasons as described below. MPC8315 Reference Manual says: "The USB DR unit must have the same clock ratio as the encryption core unit, unless one of them has its clock disabled." The encryption core also drives I2C clock, so it is enabled and is equal to 01. That means USBDRCM should be 01 here. Plus, according to MPC8315E-RDB schematics, USB unit consumes CLK_IN clock from the 24.00MHz oscillator, which means we must adjust REFSEL bits as well. p.s. Idially we should rework whole 83xx/usb.c code, in two steps: 1. Move SCCR code to the U-Boot; 2. Implement fsl,usb-clock property in the device tree, so usb.c could decide what clock exactly to use on per-board basis. Though, today we're not in a hurry since there is just one 8315e board out there. Signed-off-by:
Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by:
Kumar Gala <galak@kernel.crashing.org>
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Haiying Wang authored
MPC8568E has 64K byte MURAM, so the size should be 0x10000, not 0xc000. Signed-off-by:
Haiying Wang <Haiying.Wang@freescale.com> Signed-off-by:
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Paul Gortmaker authored
As suggested by Timur Tabi, we match on the old compat node ID for one version and warn accordingly. If we don't do this, we plunge people who try to use an old DTB into silent boot death with no clear indication of what the problem is. This patch should be removed at the beginning of the 2.6.27 dev cycle. It is only meant to ease the transition in the short term. Signed-off-by:
Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by:
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Paul Gortmaker authored
Cleanups as suggested by Stephen Rothwell and Dale Farnsworth, which incudes marking a bunch of functions static and add a vendor prefix to the compat node check for uniqueness. Signed-off-by:
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Timur Tabi authored
The rheap allocation function, rh_alloc, could call kmalloc with GFP_KERNEL. This can sleep, which means you couldn't hold a spinlock while called rh_alloc. Change all kmalloc calls to use GFP_ATOMIC so that it won't sleep. This is safe because only small blocks are allocated. Signed-off-by:
Timur Tabi <timur@freescale.com> Signed-off-by:
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Kumar Gala authored
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Kumar Gala authored
* remove #cpus from mpc8544ds.dts (not used anywhere else) * remove memreserve from mpc8568mds.dts (not needed) Signed-off-by: -
Kumar Gala authored
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Kumar Gala authored
arch/powerpc/platforms/85xx/mpc85xx_ads.c: In function ‘init_ioports’: arch/powerpc/platforms/85xx/mpc85xx_ads.c:168: warning: initialization discards qualifiers from pointer target type Signed-off-by: -
Kumar Gala authored
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Paul Gortmaker authored
This adds in the device tree source for the SBC8641D, based largely on the mpc8641_hpcn.dts. The biggest differences are the lack of a complex IRQ mapping (since no Uli/i8259 cascade) and the different layout of devices on the localbus node. Signed-off-by:
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Paul Gortmaker authored
This adds a sample defconfig for the Wind River SBC8641D board, with SMP, PCI and NFS root enabled. Signed-off-by:
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Paul Gortmaker authored
This adds support for the Wind River SBC8641D board, based largely on the mpc86xx_hpcn support. The biggest difference is the lack of the Uli and the i8259 cascade, which simplifies things. Signed-off-by:
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Scott Wood authored
Signed-off-by:
Scott Wood <scottwood@freescale.com> Signed-off-by:
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Scott Wood authored
1. Detect (and bail out on) more conditions that violate the assumptions of the setup code -- we assume in such cases that the device tree is correct and reflects what the firmware did. 2. The inbound memory mask calculation was wrong. Signed-off-by:
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Scott Wood authored
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Anton Vorontsov authored
This is needed to probe nor and nand flashes on the localbus. Signed-off-by:
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Kumar Gala authored
global_dbcr0 needs to be a per cpu set of save areas instead of a single global on all processors. Also, we switch to using DBCR0_IDM to determine if the user space app is being debugged as its a more consistent way. In the future we should support features like hardware breakpoint and watchpoints which will have DBCR0_IDM set but not necessarily DBCR0_IC (single step). Signed-off-by: -
Scott Wood authored
The kconfig entry can go away once arch/ppc and references to the config in drivers are removed. Signed-off-by:
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Anton Vorontsov authored
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Anton Vorontsov authored
qe_get_brg_clk() will be used by the fsl_gtm routines. Signed-off-by:
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Anton Vorontsov authored
Headers should include prototypes they use, otherwise build will break if we use it without explicitly including io.h: CC arch/powerpc/sysdev/qe_lib/gtm.o In file included from include/asm/qe.h:20, from arch/powerpc/sysdev/qe_lib/gtm.c:18: include/asm/immap_qe.h: In function ‘immrbar_virt_to_phys’: include/asm/immap_qe.h:480: error: implicit declaration of function ‘virt_to_phys’ make[2]: *** [arch/powerpc/sysdev/qe_lib/gtm.o] Error 1 make[1]: *** [arch/powerpc/sysdev/qe_lib] Error 2 gtm.c needs qe.h (which includes immap_qe.h) to use qe_get_brg_clk(). Signed-off-by: -
Anton Vorontsov authored
qe_muram_offset is the reverse of the qe_muram_addr, will be used for the Freescale QE USB Host Controller driver. This patch also moves qe_muram_addr into the qe.h header, plus adds __iomem hints to use with sparse. Signed-off-by:
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Anton Vorontsov authored
Freescale UPM can be used to adjust localbus timings or to generate orbitrary, pre-programmed "patterns" on the external Localbus signals. This patch implements few routines so drivers could work with UPMs in safe and generic manner. So far there is just one user of these routines: Freescale UPM NAND driver. Signed-off-by:
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Anton Vorontsov authored
This is needed to support other localbus peripherals, such as NAND on FSL UPM. Signed-off-by:
David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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Anton Vorontsov authored
- get rid of `model = "UCC"' in the ucc nodes It isn't used anywhere, so remove it. If we'll ever need something like this, we'll use compatible property instead. - replace last occurrences of device-id with cell-index. Drivers are modified for backward compatibility's sake. Signed-off-by:
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