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2014-09-08arm64: defconfig: increase NR_CPUS default to 64Robert Richter
Raising the current maximum limit to 64. This is needed for Cavium's Thunder systems that will have at least 48 cores per die. The change keeps the current memory footprint in cpu mask structures. It does not break existing code. Setting the maximum to 64 cpus still boots systems with less cpus. Mark's Juno happily booted with a NR_CPUS=64 kernel. Tested on our Thunder system with 48 cores. We could see interrupts to all cores. Cc: Radha Mohan Chintakuntla <rchintakuntla@cavium.com> Cc: Mark Rutland <mark.rutland@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Robert Richter <rrichter@cavium.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: eBPF JIT compilerZi Shen Lim
The JIT compiler emits A64 instructions. It supports eBPF only. Legacy BPF is supported thanks to conversion by BPF core. JIT is enabled in the same way as for other architectures: echo 1 > /proc/sys/net/core/bpf_jit_enable Or for additional compiler output: echo 2 > /proc/sys/net/core/bpf_jit_enable See Documentation/networking/filter.txt for more information. The implementation passes all 57 tests in lib/test_bpf.c on ARMv8 Foundation Model :) Also tested by Will on Juno platform. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_logical_shifted_reg()Zi Shen Lim
Introduce function to generate logical (shifted register) instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_data3()Zi Shen Lim
Introduce function to generate data-processing (3 source) instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_data2()Zi Shen Lim
Introduce function to generate data-processing (2 source) instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_data1()Zi Shen Lim
Introduce function to generate data-processing (1 source) instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_add_sub_shifted_reg()Zi Shen Lim
Introduce function to generate add/subtract (shifted register) instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_movewide()Zi Shen Lim
Introduce function to generate move wide (immediate) instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_bitfield()Zi Shen Lim
Introduce function to generate bitfield instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_add_sub_imm()Zi Shen Lim
Introduce function to generate add/subtract (immediate) instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_load_store_pair()Zi Shen Lim
Introduce function to generate load/store pair instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_load_store_reg()Zi Shen Lim
Introduce function to generate load/store (register offset) instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_cond_branch_imm()Zi Shen Lim
Introduce function to generate conditional branch (immediate) instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_branch_reg()Zi Shen Lim
Introduce function to generate unconditional branch (register) instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: introduce aarch64_insn_gen_comp_branch_imm()Zi Shen Lim
Introduce function to generate compare & branch (immediate) instructions. Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: LLVMLinux: Use global stack pointer in return_address()Behan Webster
The global register current_stack_pointer holds the current stack pointer. This change supports being able to compile the kernel with both gcc and clang. Author: Mark Charlebois <charlebm@gmail.com> Signed-off-by: Mark Charlebois <charlebm@gmail.com> Signed-off-by: Behan Webster <behanw@converseincode.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: LLVMLinux: Use global stack register variable for aarch64Mark Charlebois
To support both Clang and GCC, use the global stack register variable vs a local register variable. Author: Mark Charlebois <charlebm@gmail.com> Signed-off-by: Mark Charlebois <charlebm@gmail.com> Signed-off-by: Behan Webster <behanw@converseincode.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: LLVMLinux: Use current_stack_pointer in kernel/traps.cBehan Webster
Use the global current_stack_pointer to get the value of the stack pointer. This change supports being able to compile the kernel with both gcc and clang. Signed-off-by: Behan Webster <behanw@converseincode.com> Signed-off-by: Mark Charlebois <charlebm@gmail.com> Reviewed-by: Olof Johansson <olof@lixom.net> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: LLVMLinux: Calculate current_thread_info from current_stack_pointerBehan Webster
Use the global current_stack_pointer to get the value of the stack pointer. This change supports being able to compile the kernel with both gcc and clang. Signed-off-by: Behan Webster <behanw@converseincode.com> Signed-off-by: Mark Charlebois <charlebm@gmail.com> Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de> Reviewed-by: Olof Johansson <olof@lixom.net> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: LLVMLinux: Use current_stack_pointer in save_stack_trace_tskBehan Webster
Use the global current_stack_pointer to get the value of the stack pointer. This change supports being able to compile the kernel with both gcc and clang. Signed-off-by: Behan Webster <behanw@converseincode.com> Signed-off-by: Mark Charlebois <charlebm@gmail.com> Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de> Reviewed-by: Olof Johansson <olof@lixom.net> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: LLVMLinux: Add current_stack_pointer() for arm64Behan Webster
Define a global named register for current_stack_pointer. The use of this new variable guarantees that both gcc and clang can access this register in C code. Signed-off-by: Behan Webster <behanw@converseincode.com> Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de> Reviewed-by: Mark Charlebois <charlebm@gmail.com> Reviewed-by: Olof Johansson <olof@lixom.net> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: Add CONFIG_DEBUG_SET_MODULE_RONX supportLaura Abbott
In a similar fashion to other architecture, add the infrastructure and Kconfig to enable DEBUG_SET_MODULE_RONX support. When enabled, module ranges will be marked read-only/no-execute as appropriate. Signed-off-by: Laura Abbott <lauraa@codeaurora.org> [will: fixed off-by-one in module end check] Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: Introduce {set,clear}_pte_bitLaura Abbott
It's useful to be able to change individual bits in ptes at times. Introduce functions for this and update existing pte_mk* functions to use these primatives. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Laura Abbott <lauraa@codeaurora.org> [will: added missing inline keyword for new header functions] Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: convert part of soft_restart() to assemblyArun Chandran
The current soft_restart() and setup_restart implementations incorrectly assume that compiler will not spill/fill values to/from stack. However this assumption seems to be wrong, revealed by the disassembly of the currently existing code (v3.16) built with Linaro GCC 4.9-2014.05. ffffffc000085224 <soft_restart>: ffffffc000085224: a9be7bfd stp x29, x30, [sp,#-32]! ffffffc000085228: 910003fd mov x29, sp ffffffc00008522c: f9000fa0 str x0, [x29,#24] ffffffc000085230: 94003d21 bl ffffffc0000946b4 <setup_mm_for_reboot> ffffffc000085234: 94003b33 bl ffffffc000093f00 <flush_cache_all> ffffffc000085238: 94003dfa bl ffffffc000094a20 <cpu_cache_off> ffffffc00008523c: 94003b31 bl ffffffc000093f00 <flush_cache_all> ffffffc000085240: b0003321 adrp x1, ffffffc0006ea000 <reset_devices> ffffffc000085244: f9400fa0 ldr x0, [x29,#24] ----> spilled addr ffffffc000085248: f942fc22 ldr x2, [x1,#1528] ----> global memstart_addr ffffffc00008524c: f0000061 adrp x1, ffffffc000094000 <__inval_cache_range+0x40> ffffffc000085250: 91290021 add x1, x1, #0xa40 ffffffc000085254: 8b010041 add x1, x2, x1 ffffffc000085258: d2c00802 mov x2, #0x4000000000 // #274877906944 ffffffc00008525c: 8b020021 add x1, x1, x2 ffffffc000085260: d63f0020 blr x1 ... Here the compiler generates memory accesses after the cache is disabled, loading stale values for the spilled value and global variable. As we cannot control when the compiler will access memory we must rewrite the functions in assembly to stash values we need in registers prior to disabling the cache, avoiding the use of memory. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Arun Chandran <achandran@mvista.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64/efi: efistub: don't abort if base of DRAM is occupiedArd Biesheuvel
If we cannot relocate the kernel Image to its preferred offset of base of DRAM plus TEXT_OFFSET, instead relocate it to the lowest available 2 MB boundary plus TEXT_OFFSET. We may lose a bit of memory at the low end, but we can still proceed normally otherwise. Acked-by: Mark Salter <msalter@redhat.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Leif Lindholm <leif.lindholm@linaro.org> Tested-by: Leif Lindholm <leif.lindholm@linaro.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64/efi: efistub: cover entire static mem footprint in PE/COFF .textArd Biesheuvel
The static memory footprint of a kernel Image at boot is larger than the Image file itself. Things like .bss data and initial page tables are allocated statically but populated dynamically so their content is not contained in the Image file. However, if EFI (or GRUB) has loaded the Image at precisely the desired offset of base of DRAM + TEXT_OFFSET, the Image will be booted in place, and we have to make sure that the allocation done by the PE/COFF loader is large enough. Fix this by growing the PE/COFF .text section to cover the entire static memory footprint. The part of the section that is not covered by the payload will be zero initialised by the PE/COFF loader. Acked-by: Mark Salter <msalter@redhat.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Leif Lindholm <leif.lindholm@linaro.org> Tested-by: Leif Lindholm <leif.lindholm@linaro.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: spin-table: handle unmapped cpu-release-addrsMark Rutland
In certain cases the cpu-release-addr of a CPU may not fall in the linear mapping (e.g. when the kernel is loaded above this address due to the presence of other images in memory). This is problematic for the spin-table code as it assumes that it can trivially convert a cpu-release-addr to a valid VA in the linear map. This patch modifies the spin-table code to use a temporary cached mapping to write to a given cpu-release-addr, enabling us to support addresses regardless of whether they are covered by the linear mapping. Acked-by: Leif Lindholm <leif.lindholm@linaro.org> Tested-by: Leif Lindholm <leif.lindholm@linaro.org> Tested-by: Mark Salter <msalter@redhat.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> [ardb: added (__force void *) cast] Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: don't flag non-aliasing VIPT I-caches as aliasingArd Biesheuvel
VIPT caches are non-aliasing if the index is derived from address bits that are always equal between VA and PA. Classifying these as aliasing results in unnecessary flushing which may hurt performance. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-08arm64: add helper functions to read I-cache attributesArd Biesheuvel
This adds helper functions and #defines to <asm/cachetype.h> to read the line size and the number of sets from the level 1 instruction cache. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-09-06Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "A smattering of bug fixes across most architectures" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: powerpc/kvm/cma: Fix panic introduces by signed shift operation KVM: s390/mm: Fix guest storage key corruption in ptep_set_access_flags KVM: s390/mm: Fix storage key corruption during swapping arm/arm64: KVM: Complete WFI/WFE instructions ARM/ARM64: KVM: Nuke Hyp-mode tlbs before enabling MMU KVM: s390/mm: try a cow on read only pages for key ops KVM: s390: Fix user triggerable bug in dead code
2014-09-06Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Kevin Hilman: "Another round of fixes from arm-soc land, which are mostly DT fixes for: - OMAP: handful of DT fixes devices on newly supported hardware - davinci: fix 2nd EDMA channel - ux500: extend previous pinctrl fix to another board - at91: clock registration fixes, compatibility string precision And one more fix for event cleanup in drivers/bus/arm-ccn" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: bus: arm-ccn: Move event cleanup routine ARM: at91/dt: rm9200: fix usb clock definition ARM: at91: rm9200: fix clock registration ARM: at91/dt: sam9g20: set at91sam9g20 pllb driver ARM: dts: dra7-evm: Add vtt regulator support ARM: dts: dra7-evm: Fix spi1 mux documentation ARM: dts: am43x-epos-evm: Disable QSPI to prevent conflict with GPMC-NAND ARM: OMAP2+: gpmc: Don't complain if wait pin is used without r/w monitoring ARM: dts: am43xx-epos-evm: Don't use read/write wait monitoring ARM: dts: am437x-gp-evm: Don't use read/write wait monitoring ARM: dts: am437x-gp-evm: Use BCH16 ECC scheme instead of BCH8 ARM: dts: am43x-epos-evm: Use BCH16 ECC scheme instead of BCH8 ARM: dts: am4372: fix USB regs size ARM: dts: am437x-gp: switch i2c0 to 100KHz ARM: dts: dra7-evm: Fix 8th NAND partition's name ARM: dts: dra7-evm: Fix i2c3 pinmux and frequency ARM: ux500: disable msp2 node on Snowball ARM: edma: Fix configuration parsing for SoCs with multiple eDMA3 CC ARM: dts: set 'ti,set-rate-parent' for dpll4_m5x2 clock
2014-09-05Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixesKevin Hilman
Merge "at91: fixes for 3.17 #1" from Nicols Ferre: First AT91 fixes batch for 3.17: - compatibility string precision - clock registration and USB DT fix for at91rm9200 * tag 'at91-fixes' of git://github.com/at91linux/linux-at91: ARM: at91/dt: rm9200: fix usb clock definition ARM: at91: rm9200: fix clock registration ARM: at91/dt: sam9g20: set at91sam9g20 pllb driver Signed-off-by: Kevin Hilman <khilman@linaro.org>
2014-09-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull m68k updates from Geert Uytterhoeven: "Wire up new syscalls getrandom and memfd_create" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Wire up memfd_create m68k: Wire up getrandom
2014-09-05ARM: at91/dt: rm9200: fix usb clock definitionAlexandre Belloni
The atmel,clk-divisors property is taking 4 divisors, if less are provided, the clock registration will fail. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-09-05ARM: at91: rm9200: fix clock registrationAlexandre Belloni
Actually register clocks from device tree when using the common clock framework. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> [nicolas.ferre@atmel.com: add at91 to function name] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-09-05ARM: at91/dt: sam9g20: set at91sam9g20 pllb driverGaël PORTAY
The at91sam9g20 SOC uses its own pllb implementation which is different from the one inherited from at91sam9260 SOC. Signed-off-by: Gaël PORTAY <gael.portay@gmail.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-09-05Merge tag 'omap-fixes-against-v3.17-rc3' of ↵Kevin Hilman
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Merge "omap fixes against v3.17-rc3" from Tony Lindgren: Few fixes for omaps mostly for various devices to get them working properly on the new am437x and dra7 hardware for several devices such as I2C, NAND, DDR3 and USB. There's also a clock fix for omap3. And also included are two minor cosmetic fixes that are not stictly fixes for the new hardware support added recently to downgrade a GPMC warning into a debug statement, and fix the confusing comments for dra7-evm spi1 mux. Note that these are all .dts changes except for a GPMC change. * tag 'omap-fixes-against-v3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (255 commits) ARM: dts: dra7-evm: Add vtt regulator support ARM: dts: dra7-evm: Fix spi1 mux documentation ARM: dts: am43x-epos-evm: Disable QSPI to prevent conflict with GPMC-NAND ARM: OMAP2+: gpmc: Don't complain if wait pin is used without r/w monitoring ARM: dts: am43xx-epos-evm: Don't use read/write wait monitoring ARM: dts: am437x-gp-evm: Don't use read/write wait monitoring ARM: dts: am437x-gp-evm: Use BCH16 ECC scheme instead of BCH8 ARM: dts: am43x-epos-evm: Use BCH16 ECC scheme instead of BCH8 ARM: dts: am4372: fix USB regs size ARM: dts: am437x-gp: switch i2c0 to 100KHz ARM: dts: dra7-evm: Fix 8th NAND partition's name ARM: dts: dra7-evm: Fix i2c3 pinmux and frequency Linux 3.17-rc3 ... Signed-off-by: Kevin Hilman <khilman@linaro.org>
2014-09-04Merge tag 'davinci-fixes-for-v3.17-rc4' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes This patch fixes setup of second EDMA channel controller on DA850. * tag 'davinci-fixes-for-v3.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: ARM: edma: Fix configuration parsing for SoCs with multiple eDMA3 CC
2014-09-04ARM: dts: dra7-evm: Add vtt regulator supportLokesh Vutla
DRA7 evm REV G and later boards uses a vtt regulator for DDR3 termination and this is controlled by gpio7_11. This gpio is configured in boot loader. gpio7_11, which is only available only on Pad A22, in previous boards, is connected only to an unused pad on expansion connector EXP_P3 and is safe to be muxed as GPIO on all DRA7-evm versions (without a need to spin off another dts file). Since gpio7_11 is used to control VTT and should not be reset or kept in idle state during boot up else VTT will be disconnected and DDR gets corrupted. So, as part of this change, mark gpio7 as no-reset and no-idle on init. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04ARM: dts: dra7-evm: Fix spi1 mux documentationNishanth Menon
While auditing the various pin ctrl configurations using the following command: grep PIN_ arch/arm/boot/dts/dra7-evm.dts|(while read line; do v=`echo "$line" | sed -e "s/\s\s*/|/g" | cut -d '|' -f1 | cut -d 'x' -f2|tr [a-z] [A-Z]`; HEX=`echo "obase=16;ibase=16;4A003400+$v"| bc`; echo "$HEX ===> $line"; done) against DRA75x/74x NDA TRM revision S(SPRUHI2S August 2014), documentation errors were found for spi1 pinctrl. Fix the same. Fixes: 6e58b8f1daaf1af ("ARM: dts: DRA7: Add the dts files for dra7 SoC and dra7-evm board") Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04ARM: dts: am43x-epos-evm: Disable QSPI to prevent conflict with GPMC-NANDRoger Quadros
Both QSPI and GPMC-NAND share the same Pin (A8) from the SoC for Chip Select functionality. So both can't be enabled simultaneously. Disable QSPI node to prevent the pin conflict as well as be similar to 3.12 release. CC: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Pekon Gupta <pekon@pek-sem.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04ARM: OMAP2+: gpmc: Don't complain if wait pin is used without r/w monitoringRoger Quadros
For NAND read & write wait pin monitoring must be kept disabled as the wait pin is only used to indicate NAND device ready status and not to extend each read/write cycle. So don't print a warning if wait pin is specified while read/write monitoring is not in the device tree. Sanity check wait pin number irrespective if read/write monitoring is set or not. Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Pekon Gupta <pekon@pek-sem.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04ARM: dts: am43xx-epos-evm: Don't use read/write wait monitoringRoger Quadros
NAND uses wait pin only to indicate device readiness after a block/page operation. It is not use to extend individual read/write cycle and so read/write wait pin monitoring must be disabled for NAND. Add gpmc wait pin information as the NAND uses wait pin 0 for device ready indication. Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Pekon Gupta <pekon@pek-sem.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04ARM: dts: am437x-gp-evm: Don't use read/write wait monitoringRoger Quadros
NAND uses wait pin only to indicate device readiness after a block/page operation. It is not use to extend individual read/write cycle and so read/write wait pin monitoring must be disabled for NAND. This patch also gets rid of the below warning when NAND is accessed for the first time. omap_l3_noc 44000000.ocp: L3 application error: target 13 mod:1 (unclearable) Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Pekon Gupta <pekon@pek-sem.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04ARM: dts: am437x-gp-evm: Use BCH16 ECC scheme instead of BCH8Roger Quadros
am437x-gp-evm uses a NAND chip with page size 4096 bytes and spare area of 225 bytes per page. For such a setup it is preferrable to use BCH16 ECC scheme over BCH8. This also makes it compatible with ROM code ECC scheme so we can boot with NAND after flashing from kernel. Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Pekon Gupta <pekon@pek-sem.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-04ARM: dts: am43x-epos-evm: Use BCH16 ECC scheme instead of BCH8Roger Quadros
am43x-epos-evm uses a NAND chip with page size 4096 bytes and spare area of 225 bytes per page. For such a setup it is preferrable to use BCH16 ECC scheme over BCH8. This also makes it compatible with ROM code ECC scheme so we can boot with NAND after flashing from kernel. Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Pekon Gupta <pekon@pek-sem.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-03ARM: dts: am4372: fix USB regs sizeFelipe Balbi
Size should be 64KiB instead of 92KiB. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-03ARM: dts: am437x-gp: switch i2c0 to 100KHzNishanth Menon
On the GP EVM, the ambient light sensor is limited to 100KHz on the I2C bus. So use 100kHz for I2C on the GP EVM due to this limitation on the ambient light sensor. Reported-by: Aparna Balasubramanian <aparnab@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-03Merge branch 'for-v3.17-rc/ti-clk-dt' of github.com:t-kristo/linux-pm into ↵Tony Lindgren
fixes-rc3
2014-09-03ARM: dts: dra7-evm: Fix 8th NAND partition's nameRoger Quadros
The 8th NAND partition should be named "NAND.u-boot-env.backup1" instead of "NAND.u-boot-env". This is to be consistent with other TI boards as well as u-boot. CC: Pekon Gupta <pekon@pek-sem.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>