summaryrefslogtreecommitdiff
path: root/arch/powerpc/platforms/52xx/efika.c
AgeCommit message (Collapse)AuthorFilesLines
2024-03-03powerpc: Stop using of_rootChristophe Leroy1-1/+3
Replace all usages of of_root by of_find_node_by_path("/") Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20231214103152.12269-5-mpe@ellerman.id.au
2023-03-16powerpc: Make generic_calibrate_decr() the defaultChristophe Leroy1-1/+0
ppc_md.calibrate_decr() is a mandatory item. Its nullity is never checked so it must be non null on all platforms. Most platforms define generic_calibrate_decr() as their ppc_md.calibrate_decr(). Have time_init() call generic_calibrate_decr() when ppc_md.calibrate_decr() is NULL, and remove default assignment from all machines. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/6cb9865d916231c38401ba34ad1a98c249fae135.1676711562.git.christophe.leroy@csgroup.eu
2023-02-13powerpc/rtas: arch-wide function token lookup conversionsNathan Lynch1-2/+2
With the tokens for all implemented RTAS functions now available via rtas_function_token(), which is optimal and safe for arbitrary contexts, there is no need to use rtas_token() or cache its result. Most conversions are trivial, but a few are worth describing in more detail: * Error injection token comparisons for lockdown purposes are consolidated into a simple predicate: token_is_restricted_errinjct(). * A couple of special cases in block_rtas_call() do not use rtas_token() but perform string comparisons against names in the function table. These are converted to compare against token values instead, which is logically equivalent but less expensive. * The lookup for the ibm,os-term token can be deferred until needed, instead of caching it at boot to avoid device tree traversal during panic. * Since rtas_function_token() accesses a read-only data structure without taking any locks, xmon's lookup of set-indicator can be performed as needed instead of cached at startup. Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20230125-b4-powerpc-rtas-queue-v3-20-26929c8cce78@linux.ibm.com
2022-05-08powerpc: Remove asm/prom.h from all files that don't need itChristophe Leroy1-1/+0
Several files include asm/prom.h for no reason. Clean it up. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> [mpe: Drop change to prom_parse.c as reported by lkp@intel.com] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/7c9b8fda63dcf63e1b28f43e7ebdb95182cbc286.1646767214.git.christophe.leroy@csgroup.eu
2021-02-08powerpc/52xx/efika: Move PHB discoveryOliver O'Halloran1-2/+1
Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201103043523.916109-5-oohall@gmail.com
2020-04-01powerpc/32: drop unused ISA_DMA_THRESHOLDMike Rapoport1-1/+0
The ISA_DMA_THRESHOLD variable is set by several platforms but never referenced. Remove it. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20191125092033.20014-1-rppt@kernel.org
2018-12-22powerpc: Use of_node_name_eq for node name comparisonsRob Herring1-4/+2
Convert string compares of DT node names to use of_node_name_eq helper instead. This removes direct access to the node name pointer. A couple of open coded iterating thru the child node names are converted to use for_each_child_of_node() instead. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-23powerpc: Convert to using %pOF instead of full_nameRob Herring1-4/+4
Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Anatolij Gustschin <agust@denx.de> Cc: Scott Wood <oss@buserror.net> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: linuxppc-dev@lists.ozlabs.org Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-21powerpc: Move 32-bit probe() machine to later in the boot processBenjamin Herrenschmidt1-2/+1
This converts all the 32-bit platforms to use the expanded device-tree which is a pretty mechanical change. Unlike 64-bit, the 32-bit kernel didn't rely on platform initializations to setup the MMU since it sets it up entirely before probe_machine() so the move has comparatively less consequences though it's a bigger patch. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-11-03powerpc: Convert power off logic to pm_power_offAlexander Graf1-1/+2
The generic Linux framework to power off the machine is a function pointer called pm_power_off. The trick about this pointer is that device drivers can potentially implement it rather than board files. Today on powerpc we set pm_power_off to invoke our generic full machine power off logic which then calls ppc_md.power_off to invoke machine specific power off. However, when we want to add a power off GPIO via the "gpio-poweroff" driver, this card house falls apart. That driver only registers itself if pm_power_off is NULL to ensure it doesn't override board specific logic. However, since we always set pm_power_off to the generic power off logic (which will just not power off the machine if no ppc_md.power_off call is implemented), we can't implement power off via the generic GPIO power off driver. To fix this up, let's get rid of the ppc_md.power_off logic and just always use pm_power_off as was intended. Then individual drivers such as the GPIO power off driver can implement power off logic via that function pointer. With this patch set applied and a few patches on top of QEMU that implement a power off GPIO on the virt e500 machine, I can successfully turn off my virtual machine after halt. Signed-off-by: Alexander Graf <agraf@suse.de> [mpe: Squash into one patch and update changelog based on cover letter] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-08-09lib/scatterlist: make ARCH_HAS_SG_CHAIN an actual KconfigLaura Abbott1-0/+1
Rather than have architectures #define ARCH_HAS_SG_CHAIN in an architecture specific scatterlist.h, make it a proper Kconfig option and use that instead. At same time, remove the header files are are now mostly useless and just include asm-generic/scatterlist.h. [sfr@canb.auug.org.au: powerpc files now need asm/dma.h] Signed-off-by: Laura Abbott <lauraa@codeaurora.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> [x86] Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [powerpc] Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-30of/fdt: update of_get_flat_dt_prop in prep for libfdtRob Herring1-2/+2
Make of_get_flat_dt_prop arguments compatible with libfdt fdt_getprop call in preparation to convert FDT code to use libfdt. Make the return value const and the property length ptr type an int. Signed-off-by: Rob Herring <robh@kernel.org> Tested-by: Michal Simek <michal.simek@xilinx.com> Tested-by: Grant Likely <grant.likely@linaro.org> Tested-by: Stephen Chivers <schivers@csc.com>
2010-09-08powerpc/5200: efika.c: Add of_node_put to avoid memory leakJulia Lawall1-3/+6
This function is implemented as though the function of_get_next_child does not increment the reference count of its result, but actually it does. Thus the patch adds of_node_put in error handling code and drops a call to of_node_get. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ local idexpression x; expression E1; position p1,p2; @@ x@p1 = of_get_next_child(...); ... when != x = E1 of_node_get@p2(x) @script:python@ p1 << r.p1; p2 << r.p2; @@ cocci.print_main("call",p1) cocci.print_secs("get",p2) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-12-12kbuild: move utsrelease.h to include/generatedSam Ravnborg1-1/+1
Fix up all users of utsrelease.h Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2009-05-21powerpc/pci: Clean up direct access to sysdata by 52xx platformsKumar Gala1-2/+2
We shouldn't directly access sysdata to get the pci_controller. Instead use pci_bus_to_host() for this purpose. In the future we might have sysdata be a device_node to match ppc64 and unify the code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-01-27[POWERPC] Add common clock setting routine mpc52xx_psc_set_clkdiv()Grant Likely1-0/+3
PSC drivers should not access the CDM registers directly. Instead provide a common routine for setting the PSC clock parameters with the required locking. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-10-12Merge branch 'for-2.6.24' of git://git.secretlab.ca/git/linux-2.6-mpc52xx ↵Paul Mackerras1-18/+1
into for-2.6.24
2007-10-11[POWERPC] Platforms shouldn't mess with ROOT_DEVGrant Likely1-9/+0
There is no good reason for board platform code to mess with the ROOT_DEV. Remove it from all in-tree platforms except powermac. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-10[POWERPC] MPC52xx: Trim includes on mpc5200 platform support codeGrant Likely1-18/+1
Drop unnecessary includes for MPC5200 based boards Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Sylvain Munaut <tnt@246tnt.com>
2007-08-17[POWERPC] efika rtas_pci_ops: Use named structure member initializersNathan Lynch1-2/+2
Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-10[POWERPC] 52xx: sparse fixesDomen Puncer1-2/+2
sparse caught these static functions / __iomem annotations under arch/powerpc/platform/52xx/ Signed-off-by: Domen Puncer <domen.puncer@telargo.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-06-29[POWERPC] Merge ppc32 and ppc64 pcibios_alloc_controller() prototypesKumar Gala1-2/+1
Make the ppc32 pcibios_alloc_controller take a device node to match the ppc64 prototypes and have it set arch_data. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-06-29[POWERPC] Use global_number in ppc32 pci_controllerKumar Gala1-2/+2
Make the pci_controller struct use global_number for the PHB domain number instead of index to match what ppc64 does and reuse its pci_domain_nr code. Introduced a pci-common.c to handle shared code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-06-29[POWERPC] fix building without PCIArnd Bergmann1-0/+2
Some code looks can be configured to be built without PCI support, but does not work properly. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-05-07[POWERPC] mpc52xx suspend to deep-sleepDomen Puncer1-0/+15
Implement deep-sleep on MPC52xx. SDRAM is put into self-refresh with help of SRAM code (alternatives would be code in FLASH, I-cache). Interrupt code must also not be in SDRAM, so put it in I-cache. MPC52xx core is static, so contents will remain intact even with clocks turned off. Signed-off-by: Domen Puncer <domen.puncer@telargo.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-30Revert "[POWERPC] Autodetect serial console on efika"Paul Mackerras1-26/+0
This reverts commit 9414715a7bbb45450015e9bc2676d85d919d08d4, at Olaf Hering's request: > Paul, please discard this patch. The optional graphics card may have > also device_type 'serial' if it is in VGA mode. > I will send an updated patch later.
2007-04-24[POWERPC] Rename last get_property callsStephen Rothwell1-2/+2
These got added recently. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-12[POWERPC] Rename get_property to of_get_property: arch/powerpcStephen Rothwell1-8/+7
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-12[POWERPC] Autodetect serial console on efikaOlaf Hering1-0/+26
Efika boards have to be booted with console=ttyPSC0 unless there is a graphics card plugged in. Detect if the firmware stdout is the serial connector. Signed-off-by: Olaf Hering <olaf@aepfle.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13[POWERPC] Small cleanup of EFIKA platformSylvain Munaut1-0/+243
The efika platform used three files efika-pci.c efika-setup.c and a 2 line efika.h to link the two. The total of code in those is really not much and therefore, I think they're better merged in a single file. There is absolutely _no_code_change_ at all, just merged the files. Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-08 19:48:08 +0300