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2011-03-10OMAP3: PM: Use ARMv7 supported instructions instead of legacy CP15 onesSantosh Shilimkar
On ARMv7 dsb, dmb instructions are supported and can be used directly instead of their cp15 equivalnet. Also remove the opcodes for smc and use the available instruction directly in OMAP3 low power asm code Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-10msm: scm: Check for interruption immediatelyStephen Boyd
When we're interrupted on the secure side, we should just issue another smc instruction again instead of replaying the arguments to smc. Fix it. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-03-10msm: scm: Fix improper register assignmentStephen Boyd
Assign the registers used in the inline assembly immediately before the inline assembly block. This ensures the compiler doesn't optimize away dead register assignments when it shouldn't. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-03-10msm: scm: Mark inline asm as volatileStephen Boyd
We don't want the compiler to remove these asm statements or reorder them in any way. Mark them as volatile to be sure. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-03-10omap: Fix H4 init_irq to not call h4_init_flashTony Lindgren
There should be no reason to call h4_init_flash this early. It causes problems as things are not yet initialized. Tested-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-03-10ARM: 6781/1: Thumb-2: Work around buggy Thumb-2 short branch relocations in gasDave Martin
Various binutils versions can resolve Thumb-2 branches to locally-defined, preemptible global symbols as short-range "b.n" branch instructions. This is a problem, because there's no guarantee the final destination of the symbol, or any candidate locations for a trampoline, are within range of the branch. For this reason, the kernel does not support fixing up the R_ARM_THM_JUMP11 (102) relocation in modules at all, and it makes little sense to add support. The symptom is that the kernel fails with an "unsupported relocation" error when loading some modules. Until fixed tools are available, passing -fno-optimize-sibling-calls to gcc should prevent gcc generating code which hits this problem, at the cost of a bit of extra runtime stack usage in some cases. The problem is described in more detail at: https://bugs.launchpad.net/binutils-linaro/+bug/725126 Only Thumb-2 kernels are affected. This patch adds a new CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11 config option which adds -fno-optimize-sibling-calls to CFLAGS_MODULE when building a Thumb-2 kernel. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-10ARM: 6747/1: P2V: Thumb2 supportNicolas Pitre
Adding Thumb2 support to the runtime patching of the virt_to_phys and phys_to_virt opcodes. Tested both the 8-bit and the 16-bit fixups, using different placements in memory to exercize all code paths. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Reviewed-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-10ARM: 6798/1: aout-core: zero thread debug registers in a.out core dumpWill Deacon
The removal of the single-step emulation from ptrace on ARM means that thread_struct no longer has software breakpoint fields in its debug member. This patch fixes the a.out core dump code so that the debug registers are zeroed rather than trying to copy from non-existent fields. Cc: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Bryan Wu <bryan.wu@canonical.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-10Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into ↵Russell King
devel-stable
2011-03-10arm: imx: Zero entire imxdma structureIlia Mirkin
The semantic match that finds the problem: // <smpl> @@ type T; identifier x; @@ T *x; ... * memset(x, ..., ... * sizeof(x) * ...); // </smpl> Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-03-10mx51 enchance the sd/mmc HW timing compatibility on mx51 boards.Richard Zhu
Some cards have the CRC errors in read on mx51 BBG board. Configure the eSDHC pad configurations to level up the compatibility to fix this issue. Signed-off-by: Richard Zhu <Hong-Xing.Zhu@freescale.com> Tested-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-03-10omap2/3: dmtimer: Enable autoidleTero Kristo
This saves some power. OMAP4 version should check for GPT module ID, as autoidle is only supported on a subset of these. Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-03-10OMAP2+: clockdomain: add flag that will block autodeps from being added for ↵Paul Walmsley
a clockdomain Add a new clockdomain flag, CLKDM_NO_AUTODEPS, which, when marked on a clockdomain, will prevent "autodeps" from being associated with the clockdomain. ("Autodeps" are sleep dependencies and wakeup dependencies from/to processor modules that are automatically added to a clockdomain when it is in hardware-supervised idle mode. They are deprecated -- a relic from the old CDP trees -- but are still in use for OMAP3.) Also, prevent the hwmod code from adding or removing initiator dependencies for clockdomains with this flag set. This patch should allow others to test which clockdomains actually still need autodeps. Thanks to Kevin Hilman <khilman@ti.com> for noting that the original version should also modify the hwmod code. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@ti.com>
2011-03-10OMAP2+: hwmod: add API to handle autoidle modeKishon Vijay Abraham I
Create a new API that forms a wrapper to _set_module_autoidle() to modify the AUTOIDLE bit. This API is intended to be used by drivers that requires direct manipulation of the AUTOIDLE bits in SYSCONFIG register. McBSP driver requires autoidle bit to be enabled/disabled while using sidetone feature. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com> [paul@pwsan.com: restrict the hwmod states that the autoidle bit can be changed in; changed function name; dropped "int" from "unsigned int long"] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-03-10OMAP2+: hwmod: allow board files to prevent devices from being reset upon initPaul Walmsley
Some boards can't tolerate IP blocks being reset when they are initialized. Michael Büsch cites a case with the Nokia N810: http://www.spinics.net/lists/linux-omap/msg47277.html To allow such boards to continue working normally, allow board file maintainers to mark IP blocks to prevent them from being reset upon init. This is done via a hwmod function, omap_hwmod_no_setup_reset(). Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Michael Buesch <mb@bu3sch.de>
2011-03-10OMAP2+: hwmod: use status bit info for reset lineomar ramirez
On OMAP2 and OMAP3 the reset ctrl shift doesn't match the status bit, as it does on OMAP4, when handling the reset lines. This patch adds a new member in the reset info structure, so now it can be added as part of hwmod data, and checked accordingly for OMAP2 or 3; otherwise, there could be cases when the shift masks doesn't match both of the registers, and a successful reset might throw an error message or vice versa. Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com> [paul@pwsan.com: added a warning if st_shift used on OMAP4; renamed 'r' variable; improved some documentation] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-03-10OMAP2+: hwmod: fix a documentation bug with HWMOD_NO_OCP_AUTOIDLEPaul Walmsley
The documented name of the HWMOD_NO_OCP_AUTOIDLE flag was incorrect; fix it. Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-03-10OMAP2+: hwmod: Fix what _init_clock returnsRajendra Nayak
_init_clock always returns 0 and does not propogate the error (in case of failure) back to the caller, causing _init_clocks to fail silently. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Acked-by: Benoît Cousson <b-cousson@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-03-10omap: hwmod: add syss reset done flags to omap2, omap3 hwmodsAvinash.H.M
Some of the omap2, omap3 peripherals support software reset. This can be done through the softreset bit in sysconfig register. The reset status can be checked through resetdone bit of sysstatus register. syss_has_reset_status is added to the hwmod database of peripherals which have resetdone bit in sysstatus register. Cc: Rajendra Nayak <rnayak@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Kevin Hilman <khilman@ti.com> Reviewed-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Avinash.H.M <avinashhm@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-03-10OMAP2+: hwmod: fix incorrect computation of autoidle_maskTarun Kanti DebBarma
Autoidle is a single bit, TIOCP_CFG[0], setting on OMAP1/2/3/4 platforms. In _set_module_autoidle() I am seeing 0x3 value where the mask is computed. This should be 0x1. v2: (1) Modified the subject. (2) Modified the description with further specific information. Baseline: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git Tested Info: Boot tested on OMAP 1/2/3/4. Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Acked-by: Rajendra Nayak <rnayak@ti.com> Acked-by: Benoit Cousson <b-cousson@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-03-10OMAP3: hwmod data: Remove masters port links for interconnects.Benoit Cousson
Master ports from interconnect are generating some annoying circular references that become tricky to handle if we have to dynamically remove some IP on some variant platforms. Since they are not used for the moment, and since we can still build that relation using the reverse relation (slave port from the IP toward master port of the interconnect), let remove them for the moment like it is done on OMAP4. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Sanjeev Premi <premi@ti.com>
2011-03-10ARM: mxs/mx28evk: add framebuffer deviceShawn Guo
Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-03-10ARM: mx28: set proper parent for lcdif clockShawn Guo
Most likely, the LCD panel on mx28 platform will require a pixel clock higher than ref_xtal_clk (24 MHz), so the patch initializes the parent of lcdif clock as ref_pix_clk. Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-03-10ARM: 6796/1: Footbridge: Fix I/O mappings for NOMMU modeStepan Moskovchenko
Use the correct I/O address definitions for Footbridge peripherals when the kernel is compiled without MMU support. Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-10OMAP3: hwmod data: Fix incorrect SmartReflex -> L4 CORE interconnect linksBenoit Cousson
Commit d34427267186827dfd62bd8cf726601fffb22534 ("OMAP3: PM: Adding smartreflex hwmod data") added data that claims that the L4 CORE has two slave interfaces that originate from the SmartReflex modules, omap3_l4_core__sr1 and omap3_l4_core__sr2. But as those two data structure records show, it's L4 CORE that has a master port towards SR1 and SR2. Move the incorrect data from slaves list to master list. Based on a path by Paul Walmsley <paul@pwsan.com> https://patchwork.kernel.org/patch/623171/ That is based on a patch by Benoît Cousson <b-cousson@ti.com>: https://patchwork.kernel.org/patch/590561/ Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Benoît Cousson <b-cousson@ti.com> Cc: Sanjeev Premi <premi@ti.com> Cc: Thara Gopinath <thara@ti.com>
2011-03-10ARM: 6797/1: hw_breakpoint: Fix newlines in WARNingsStephen Boyd
These warnings are missing newlines and spaces causing confusing looking output when they trigger. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-09OMAP: clock: fix compile warningFelipe Balbi
if building kernels without OMAP2 support, we will see a warning such as: arch/arm/mach-omap2/io.c: In function 'omap2_init_common_infrastructure': arch/arm/mach-omap2/io.c:389:3: warning: statement with no effect arch/arm/mach-omap2/io.c:391:3: warning: statement with no effect Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-03-09OMAP2+: smartreflex: remove SR debug directory in omap_sr_remove()Anand S Sawant
omap_sr_probe() creates the smartreflex debug directory and its underlying nvalue debug directory. These directories are removed in omap_sr_remove(). Basic smartreflex functionality tested on OMAP3630 Zoom3 & OMAP4430 SDP Signed-off-by: Anand S Sawant <sawant@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09ARM: omap3: Thumb-2 compatibility for sleep34xx.SDave Martin
* Build unconditionally as ARM for correct interoperation with OMAP firmware. * Fix an out-of-range ADR when building for ARM. * Remove deprecated PC-relative stores. * Add the required ENDPROC() directive for each ENTRY(). * .align before data words. * Handle non-interworking return from v7_flush_dcache_all. Signed-off-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09ARM: omap3: Thumb-2 compatibility for sram34xx.SDave Martin
* Build unconditionally as ARM for correct interoperation with OMAP firmware. * Remove deprecated PC-relative stores * Add the required ENDPROC() directive for each ENTRY(). * .align before data words Signed-off-by: Dave Martin <dave.martin@linaro.org> Tested-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09ARM: omap3: Remove hand-encoded SMC instructionsDave Martin
For various reasons, Linux now only officially supports being built with tools which are new enough to understand the SMC instruction. Replacing the hand-encoded instructions when the mnemonic also allows for correct assembly in Thumb-2 (otherwise, the result is random data in the middle of the code). The Makefile already ensures that this file is built with a high enough gcc -march= flag (armv7-a). Signed-off-by: Dave Martin <dave.martin@linaro.org> Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09ARM: omap4: Convert END() to ENDPROC() for correct linkage with ↵Dave Martin
CONFIG_THUMB2_KERNEL Code marked with ENTRY() also needs a matching ENDPROC() directive, in order to ensure that the type and instruction set of the symbol are correctly annotated. ENDPROC() tags the affected symbol as a function symbol, which will ensure that link-time fixups don't accidentally switch to the wrong instruction set. Signed-off-by: Dave Martin <dave.martin@linaro.org> Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09ARM: omap4: Provide do_wfi() for Thumb-2Dave Martin
For CONFIG_THUMB2_KERNEL, the existing definition of do_wfi() will insert invalid code into the instruction stream. Any assembler which can assemble Thumb-2 is guaranteed to accept the "wfi" mnemonic, so for the Thumb-2 case, just use the mnemonic. The ARM case is left as-is. Signed-off-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09OMAP3: PM: Initialize IVA only if availableSanjeev Premi
IVA device is not present in many OMAP3 variants. This patch ensures that initialization is tied to the presence of IVA on the device. Signed-off-by: Sanjeev Premi <premi@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09OMAP3: PM: Set/clear T2 bit for Smartreflex on TWLThara Gopinath
Voltage control on TWL can be done using VMODE/I2C1/I2C_SR. Since almost all platforms use I2C_SR on omap3, omap3_twl_init by default expects that OMAP's I2C_SR is plugged in to TWL's I2C and calls omap3_twl_set_sr_bit. On platforms where I2C_SR is not connected, the board files are expected to call omap3_twl_set_sr_bit(false) to ensure that I2C_SR path is not set for voltage control and prevent the default behavior of omap3_twl_init. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Thara Gopinath <thara@ti.com> Signed-off-by: Shweta Gulati <shweta.gulati@ti.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09omap3: cpuidle: Add description field to each C-state.Santosh Shilimkar
Add a description field to each idle C-state. This helps to give better data with PowerTop and one don't have to refer to the code to link what Cx means from system point of view while analysing PowerTop data. No functional change. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09omap3: pm: Use exported set_cr() instead of a custom one.Santosh Shilimkar
Remove the custom restore_control_register() and use the exported set_cr() instead to set the system control register(SCTRL) value. No functional change. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09OMAP2/3: PM: remove unnecessary wakeup/sleep dependency clearPaul Walmsley
The OMAP2 and OMAP3 PM code clears clockdomain wakeup and sleep dependencies. This is unnecessary after commit 6f7f63cc9adf3192e6fcac4e8bed5cc10fd924aa ("OMAP clockdomain: initialize clockdomain registers when the clockdomain layer starts") which clears these dependencies during clockdomain init. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09OMAP2+: remove unused UART base addresses from omap_globalsKevin Hilman
Now that omap_hwmod + omap_device is used for OMAP UART device and driver code, we no longer need the UART physical addresses in omap_globals. Note that the #defines for the base addresses are still left in <plat/serial.h> since they are used by DEBUG_LL and uncompress code. Build tested for OMAP1 (omap1_defconfig) and OMAP2+ (omap2plus_defconfig) Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09OMAP: PM: SmartReflex: fix potential NULL dereferenceVasiliy Kulikov
kzalloc() may fail, if so return -ENOMEM. Also Walter Harms suggested to use kasprintf() instead of kzalloc+strcpy+strcat. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09OMAP3: beagle xm: enable up to 800MHz OPPNishanth Menon
OMP3630 silicon can enable higher frequencies only depending on the board characteristics meeting the recommended standards, and has to be selectively toggled. Beagle XM uses 3730 variant and the board design allows enabling 800MHz and 1GHz OPPs. However, We need Smart reflex class 1.5 and ABB to enable 1GHz safely. For the moment, we tweak the default table to allow for 800Mhz OPP usage. Reported-by: Koen Kooi <koen@beagleboard.org> Tested-by: Koen Kooi <koen@beagleboard.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09OMAP3|4: OPP: make omapx_opp_init non-staticMenon, Nishanth
omap3 and omap4 opp_init should be made non-static to allow for platform specific opp table tweaking. making these static conflicts with the definition in pm.h(global) as well. we include pm.h as well to ensure that there are no such prototype conflicts with actual implementation in the future. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09OMAP3630: PM: don't warn the user with a trace in case of PM34XX_ERRATUMRicardo Salveti de Araujo
In case in user has a OMAP3630 < ES1.2 the kernel should warn the user about the ERRATUM, but using pr_warn instead of WARN_ON is already enough, as there is nothing else the user can do besides changing the board. Signed-off-by: Ricardo Salveti de Araujo <ricardo.salveti@canonical.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-03-09ARM: 6784/1: errata: no automatic Store Buffer drain on Cortex-A9Will Deacon
On revisions of the Cortex-A9 prior to r2p0, the Store Buffer does not have any automatic draining mechanism and therefore a livelock may occur if an external agent continuously polls a memory location waiting to observe an update. This workaround defines cpu_relax() as smp_mb(), preventing correctly written polling loops from denying visibility of updates to memory. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-09ARM: 6772/1: errata: possible fault MMU translations following an ASID switchWill Deacon
On the r2p* and r3p* versions of the Cortex-A9, a speculative memory access may cause a page table walk which starts prior to an ASID switch but completes afterwards. This can populate the micro-TLB with a stale entry which may be hit with the new ASID. This workaround places two dsb instructions in the mm switching code so that no page table walks can cross the ASID switch. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-09ARM: 6776/1: mach-ux500: activate fix for errata 753970Linus Walleij
This applies errata fix 753970 for all ux500 platforms. All current ASICs suffer from this. If the problem is resolved in later ASICs, the errata selection can be pushed down to other Kconfig options. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-09Merge branch 'omap-l3-for-next' of ↵Tony Lindgren
git://dev.omapzoom.org/pub/scm/santosh/kernel-omap4-base into omap-for-linus
2011-03-09OMAP2/3: VENC hwmod: add OCPIF_SWSUP_IDLE flag to interfacePaul Walmsley
According to the hwmod interface data, the DSS submodule "VENC" uses a clock, "dss_54m_fck"/"dss_tv_fck", which the PRCM cannot autoidle. By default, the hwmod code assumes that interface clocks can be autoidled by the PRCM. When the interface clock can't be autoidled by the PRCM, those interfaces must be marked with the OCPIF_SWSUP_IDLE flag. Otherwise, the "interface clock" will always have a non-zero use count, and the device won't enter idle. This problem was observed on N8x0. Fix the immediate problem by marking the VENC interface with the OCPIF_SWSUP_IDLE flag. But it's not clear that "dss_54m_fck"/"dss_tv_fck" is really the correct interface clock for VENC. It may be that the VENC interface should use a hardware-autoidling interface clock. This is the situation on OMAP4, which uses "l3_div_ck" as the VENC interface clock, which can be autoidled by the PRCM. Clarification from TI is needed. Problem found and patch tested on N8x0 by Tony Lindgren <tony@atomide.com>. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Senthilvadivu Guruswamy <svadivu@ti.com> Cc: Sumit Semwal <sumit.semwal@ti.com> Cc: Kevin Hilman <khilman@ti.com> Cc: Benoît Cousson <b-cousson@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-03-09OMAP4: l3: Introduce l3-interconnect error handling driverSantosh Shilimkar
The driver provides the information regarding the ocp errors that gets logged in the interconnect. The error information gives the detail regarding the target that was attempted to be accessed and its corresponding address. Signed-off-by: sricharan <r.sricharan@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Benoit Cousson <b-cousson@ti.com>
2011-03-09OMAP4: Initialise the l3 device with the hwmod data.sricharan
The l3 interconnect device is build with all the data required to handle the error logging. The data is extracted from the hwmod data base. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: sricharan <r.sricharan@ti.com> Acked-by: Benoit Cousson <b-cousson@ti.com>
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