- 12 Mar, 2016 11 commits
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Hou Zhiqiang authored
Starting with commit <8947e396> ("Documentation: dt: mtd: replace "nor-jedec" binding with "jedec, spi-nor"") we have "jedec,spi-nor" binding indicating support for JEDEC identification. Use it for all flashes that are supposed to support READ ID op according to the datasheets. Signed-off-by:
Hou Zhiqiang <Zhiqiang.Hou@freescale.com> Signed-off-by:
Scott Wood <oss@buserror.net>
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Zhao Qiang authored
Signed-off-by:
Zhao Qiang <qiang.zhao@nxp.com> Signed-off-by:
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Christophe Leroy authored
PAGE_EXEC is required for inittext, otherwise CONFIG_DEBUG_PAGEALLOC ends up with an Oops [ 0.000000] Inode-cache hash table entries: 8192 (order: 1, 32768 bytes) [ 0.000000] Sorting __ex_table... [ 0.000000] bootmem::free_all_bootmem_core nid=0 start=0 end=2000 [ 0.000000] Unable to handle kernel paging request for instruction fetch [ 0.000000] Faulting instruction address: 0xc045b970 [ 0.000000] Oops: Kernel access of bad area, sig: 11 [#1] [ 0.000000] PREEMPT DEBUG_PAGEALLOC CMPC885 [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.18.25-local-dirty #1673 [ 0.000000] task: c04d83d0 ti: c04f8000 task.ti: c04f8000 [ 0.000000] NIP: c045b970 LR: c045b970 CTR: 0000000a [ 0.000000] REGS: c04f9ea0 TRAP: 0400 Not tainted (3.18.25-local-dirty) [ 0.000000] MSR: 08001032 <ME,IR,DR,RI> CR: 39955d35 XER: a000ff40 [ 0.000000] GPR00: c045b970 c04f9f50 c04d83d0 00000000 ffffffff c04dcdf4 00000048 c04f6b10 GPR08: c04f6ab0 00000001 c0563488 c04f6ab0 c04f8000 00000000 00000000 b6db6db7 GPR16: 00003474 00000180 00002000 c7fec000 00000000 000003ff 00000176 c0415014 GPR24: c0471018 c0414ee8 c05304e8 c03aeaac c0510000 c0471018 c0471010 00000000 [ 0.000000] NIP [c045b970] free_all_bootmem+0x164/0x228 [ 0.000000] LR [c045b970] free_all_bootmem+0x164/0x228 [ 0.000000] Call Trace: [ 0.000000] [c04f9f50] [c045b970] free_all_bootmem+0x164/0x228 (unreliable) [ 0.000000] [c04f9fa0] [c0454044] mem_init+0x3c/0xd0 [ 0.000000] [c04f9fb0] [c045080c] start_kernel+0x1f4/0x390 [ 0.000000] [c04f9ff0] [c0002214] start_here+0x38/0x98 [ 0.000000] Instruction dump: [ 0.000000] 2f150000 7f968840 72a90001 3ad60001 56b5f87e 419a0028 419e0024 41a20018 [ 0.000000] 807cc20c 38800000 7c638214 4bffd2f5 <3a940001> 3a100024 4bffffc8 7e368b78 [ 0.000000] ---[ end trace dc8fa200cb88537f ]--- Signed-off-by:
Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by:
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Igal Liberman authored
This patch adds pcsphy node to FManV3 device tree. Signed-off-by:
Igal Liberman <igal.liberman@freescale.com> Signed-off-by:
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Igal Liberman authored
Describe the PHY topology for all configurations supported by each board Based on prior work by Andy Fleming <afleming@freescale.com> Signed-off-by:
Shruti Kanetkar <Shruti@freescale.com> Signed-off-by:
Emil Medve <Emilian.Medve@Freescale.com> Signed-off-by:
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Alessio Igor Bogani authored
Signed-off-by:
Alessio Igor Bogani <alessio.bogani@elettra.eu> Signed-off-by:
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Alessio Igor Bogani authored
Avoid duplication of the interrupt-parent, migrate to 4 interrupt-cells and set the right clock-frequency for pcie (100 Mhz). Signed-off-by:
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Alessio Igor Bogani authored
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Alessio Igor Bogani authored
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Alessio Igor Bogani authored
This patch show how defconfigs appear if the kconfig fragment approach is used. Signed-off-by:
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Alessio Igor Bogani authored
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- 11 Mar, 2016 19 commits
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Christophe Leroy authored
Remove one instruction in mulhdu Signed-off-by:
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Christophe Leroy authored
Inlining of _dcache_range() functions has shown that the compiler does the same thing a bit better with one insn less Signed-off-by:
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Christophe Leroy authored
This simplification helps the compiler. We now have only one test instead of two, so it reduces the number of branches. Signed-off-by:
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Christophe Leroy authored
flush/clean/invalidate _dcache_range() functions are all very similar and are quite short. They are mainly used in __dma_sync() perf_event locate them in the top 3 consumming functions during heavy ethernet activity They are good candidate for inlining, as __dma_sync() does almost nothing but calling them Signed-off-by:
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Christophe Leroy authored
clear_pages() is never used expect by clear_page, and PPC32 is the only architecture (still) having this function. Neither PPC64 nor any other architecture has it. This patch removes clear_pages() and moves clear_page() function inline (same as PPC64) as it only is a few isns Signed-off-by:
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Christophe Leroy authored
This patch adds inline functions to use dcbz, dcbi, dcbf, dcbst from C functions Signed-off-by:
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Christophe Leroy authored
On PPC8xx, flushing instruction cache is performed by writing in register SPRN_IC_CST. This registers suffers CPU6 ERRATA. The patch rewrites the fonction in C so that CPU6 ERRATA will be handled transparently Signed-off-by:
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Christophe Leroy authored
There is no real need to have set_context() in assembly. Now that we have mtspr() handling CPU6 ERRATA directly, we can rewrite set_context() in C language for easier maintenance. Signed-off-by:
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Christophe Leroy authored
CPU6 ERRATA is now handled directly in mtspr(), so we can use the standard set_dec() fonction in all cases. Signed-off-by:
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Christophe Leroy authored
MPC8xx has an ERRATA on the use of mtspr() for some registers This patch includes the ERRATA handling directly into mtspr() macro so that mtspr() users don't need to bother about that errata Signed-off-by:
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Christophe Leroy authored
Add missing SPRN defines into reg_8xx.h Some of them are defined in mmu-8xx.h, so we include mmu-8xx.h in reg_8xx.h, for that we remove references to PAGE_SHIFT in mmu-8xx.h to have it self sufficient, as includers of reg_8xx.h don't all include asm/page.h Signed-off-by:
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Christophe Leroy authored
ioremap_base is not initialised and is nowhere used so remove it Signed-off-by:
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Christophe Leroy authored
Commit 77116849 ("[POWERPC] Remove unused machine call outs") removed the call to setup_io_mappings(), so remove the associated progress line message Signed-off-by:
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Christophe Leroy authored
x_mapped_by_bats() and x_mapped_by_tlbcam() serve the same kind of purpose, and are never defined at the same time. So rename them x_block_mapped() and define them in the relevant places Signed-off-by:
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Christophe Leroy authored
The fixmap related functions try to map kernel pages that are already mapped through Large TLBs. pte_offset_kernel() has to return NULL for LTLBs, otherwise the caller will try to access level 2 table which doesn't exist Signed-off-by:
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Christophe Leroy authored
Now we have a 8xx specific .c file for that so put it in there as other powerpc variants do Signed-off-by:
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Christophe Leroy authored
Now the noltlbs kernel parameter is also applicable to PPC8xx Signed-off-by:
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Christophe Leroy authored
On a live running system (VoIP gateway for Air Trafic Control), over a 10 minutes period (with 277s idle), we get 87 millions DTLB misses and approximatly 35 secondes are spent in DTLB handler. This represents 5.8% of the overall time and even 10.8% of the non-idle time. Among those 87 millions DTLB misses, 15% are on user addresses and 85% are on kernel addresses. And within the kernel addresses, 93% are on addresses from the linear address space and only 7% are on addresses from the virtual address space. MPC8xx has no BATs but it has 8Mb page size. This patch implements mapping of kernel RAM using 8Mb pages, on the same model as what is done on the 40x. In 4k pages mode, each PGD entry maps a 4Mb area: we map every two entries to the same 8Mb physical page. In each second entry, we add 4Mb to the page physical address to ease life of the FixupDAR routine. This is just ignored by HW. In 16k pages mode, each PGD entry maps a 64Mb area: each PGD entry will point to the first page of the area. The DTLB handler adds the 3 bits from EPN to map the correct page. With this patch applied, we now get only 13 millions TLB misses during the 10 minutes period. The idle time has increased to 313s and the overall time spent in DTLB miss handler is 6.3s, which represents 1% of the overall time and 2.2% of non-idle time. Signed-off-by:
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Christophe Leroy authored
We are spending between 40 and 160 cycles with a mean of 65 cycles in the DTLB handling routine (measured with mftbl) so make it more simple althought it adds one instruction. With this modification, we get three registers available at all time, which will help with following patch. Signed-off-by:
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- 09 Mar, 2016 10 commits
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Xuelin Shi authored
add the missing RAID Engine device node for p5040. otherwise, the device can not be detected. Signed-off-by:
Xuelin Shi <xuelin.shi@nxp.com> Signed-off-by:
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Christophe Leroy authored
csum_partial is often called for small fixed length packets for which it is suboptimal to use the generic csum_partial() function. For instance, in my configuration, I got: * One place calling it with constant len 4 * Seven places calling it with constant len 8 * Three places calling it with constant len 14 * One place calling it with constant len 20 * One place calling it with constant len 24 * One place calling it with constant len 32 This patch renames csum_partial() to __csum_partial() and implements csum_partial() as a wrapper inline function which * uses csum_add() for small 16bits multiple constant length * uses ip_fast_csum() for other 32bits multiple constant * uses __csum_partial() in all other cases Signed-off-by:
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Raghav Dogra authored
Modify platform driver suspend/resume to syscore suspend/resume. This is because p1022ds needs to use localbus when entering the PCIE resume. Signed-off-by:
Raghav Dogra <raghav.dogra@nxp.com> [scottwood: dropped makefile churn] Signed-off-by:
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Christophe Leroy authored
When CONFIG_DEBUG_PAGEALLOC is activated, the initial TLB mapping gets flushed to track accesses to wrong areas. Therefore, kernel addresses will also generate ITLB misses. Signed-off-by:
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Christophe Leroy authored
The MPC885 reference manual says that SDCR shall have value 0x40, but most exemples set SDCR to 0x1 With 0x1 in SDCR, we observe TX underruns on SCC when using it in QMC mode. According the NXP technical support, this is a copy/paste error from MPC860 reference manual, 0x40 being the only value supported by the MPC885 HW. Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
This patch disables deprecated IDE subsystem in mpc8610_hpcd_defconfig (no IDE host drivers are selected in this config so there is no valid reason to enable IDE subsystem itself). Signed-off-by:
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
This patch disables deprecated IDE subsystem in stx_gp3_defconfig (no IDE host drivers are selected in this config so there is no valid reason to enable IDE subsystem itself). Cc: Scott Wood <oss@buserror.net> Cc: Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
This patch disables deprecated IDE subsystem in ksi8560_defconfig (no IDE host drivers are selected in this config so there is no valid reason to enable IDE subsystem itself). Cc: Scott Wood <oss@buserror.net> Cc: Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
This patch disables deprecated IDE subsystem in mpc834x_itx_defconfig (no IDE host drivers are selected in this config so there is no valid reason to enable IDE subsystem itself). Cc: Scott Wood <oss@buserror.net> Cc: Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Saurabh Sengar authored
cpm_muram_alloc_common is called twice and both the times spin_lock_irqsave is held. Using GFP_KERNEL can sleep in spin_lock_irqsave context and cause deadlock Signed-off-by:
Saurabh Sengar <saurabh.truth@gmail.com> Signed-off-by:
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