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* xen/x86-64: fix breakpoints and hardware watchpointsJeremy Fitzhardinge2009-05-08
| | | | | | | | | | | Native x86-64 uses the IST mechanism to run int3 and debug traps on an alternative stack. Xen does not do this, and so the frames were being misinterpreted by the ptrace code. This change special-cases these two exceptions by using Xen variants which run on the normal kernel stack properly. Impact: avoid crash or bad data when IST trap is invoked under Xen Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
* xen: reserve Xen start_info rather than e820 reservingJeremy Fitzhardinge2009-05-08
| | | | | | | | | | | | | Use reserve_early rather than e820 reservations for Xen start info and mfn->pfn table, so that the memory use is a bit more self-documenting. [ Impact: cleanup ] Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Xen-devel <xen-devel@lists.xensource.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <4A032EF1.6070708@goop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'x86/urgent' into x86/xenIngo Molnar2009-05-08
|\ | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/frv/include/asm/pgtable.h arch/x86/include/asm/required-features.h arch/x86/xen/mmu.c Merge reason: x86/xen was on a .29 base still, move it to a fresher branch and pick up Xen fixes as well, plus resolve conflicts Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: xen, i386: reserve Xen pagetablesJeremy Fitzhardinge2009-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Xen pagetables are no longer implicitly reserved as part of the other i386_start_kernel reservations, so make sure we explicitly reserve them. This prevents them from being released into the general kernel free page pool and reused. [ Impact: fix Xen guest crash ] Also-Bisected-by: Bryan Donlan <bdonlan@gmail.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Xen-devel <xen-devel@lists.xensource.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <4A032EEC.30509@goop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86, kexec: fix crashdump panic with CONFIG_KEXEC_JUMPHuang Ying2009-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tim Starling reported that crashdump will panic with kernel compiled with CONFIG_KEXEC_JUMP due to null pointer deference in machine_kexec_32.c: machine_kexec(), when deferencing kexec_image. Refering to: http://bugzilla.kernel.org/show_bug.cgi?id=13265 This patch fixes the BUG via replacing global variable reference: kexec_image in machine_kexec() with local variable reference: image, which is more appropriate, and will not be null. Same BUG is in machine_kexec_64.c too, so fixed too in the same way. [ Impact: fix crash on kexec ] Reported-by: Tim Starling <tstarling@wikimedia.org> Signed-off-by: Huang Ying <ying.huang@intel.com> LKML-Reference: <1241751101.6259.85.camel@yhuang-dev.sh.intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * x86-64: finish cleanup_highmaps()'s job wrt. _brk_endJan Beulich2009-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | With the introduction of the .brk section, special care must be taken that no unused page table entries remain if _brk_end and _end are separated by a 2M page boundary. cleanup_highmap() runs very early and hence cannot take care of that, hence potential entries needing to be removed past _brk_end must be cleared once the brk allocator has done its job. [ Impact: avoids undesirable TLB aliases ] Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * x86: fix boot hang in early_reserve_e820()Jan Beulich2009-05-08
| | | | | | | | | | | | | | | | | | | | | | | | If the first non-reserved (sub-)range doesn't fit the size requested, an endless loop will be entered. If a range returned from find_e820_area_size() turns out insufficient in size, the range must be skipped before calling the function again. [ Impact: fixes boot hang on some platforms ] Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| * x86: Fix a typo in a printk messageNikanth Karthikesan2009-05-06
| | | | | | | | | | | | | | | | [ Impact: printk message cleanup ] Signed-off-by: Nikanth Karthikesan <knikanth@suse.de> LKML-Reference: <200905040908.27299.knikanth@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86, srat: do not register nodes beyond e820 mapDavid Rientjes2009-05-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mem= option will truncate the memory map at a specified address so it's not possible to register nodes with memory beyond the e820 upper bound. unparse_node() is only called when then node had memory associated with it, although with the mem= option it is no longer addressable. [ Impact: fix boot hang on certain (large) systems ] Reported-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com> Signed-off-by: David Rientjes <rientjes@google.com> Acked-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <alpine.DEB.2.00.0905051248150.20021@chino.kir.corp.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * Merge branch 'release' of ↵Linus Torvalds2009-05-05
| |\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] xen_domu_defconfig: fix build issues/warnings
| | * [IA64] xen_domu_defconfig: fix build issues/warningsJan Beulich2009-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - drivers/xen/events.c did not compile - xen_setup_hook caused a modpost section warning - the use of u64 (instead of unsigned long long) together with a %llu in drivers/xen/balloon.c caused a compiler warning Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds2009-05-05
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing: x86, mmiotrace: fix range test tracing: fix ref count in splice pages
| | * | tracing: x86, mmiotrace: fix range testStuart Bennett2009-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Matching on (addr == (p->addr + p->len)) causes problems when mappings are adjacent. [ Impact: fix mmiotrace confusion on adjacent iomaps ] Signed-off-by: Stuart Bennett <stuart@freedesktop.org> Acked-by: Pekka Paalanen <pq@iki.fi> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <1240946271-7083-2-git-send-email-stuart@freedesktop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-05-05
| |\ \ \ | | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: show number of core_siblings instead of thread_siblings in /proc/cpuinfo amd-iommu: fix iommu flag masks x86: initialize io_bitmap_base on 32bit x86: gettimeofday() vDSO: fix segfault when tv == NULL
| | * | x86: show number of core_siblings instead of thread_siblings in /proc/cpuinfoAndreas Herrmann2009-05-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 7ad728f98162cb1af06a85b2a5fc422dddd4fb78 (cpumask: x86: convert cpu_sibling_map/cpu_core_map to cpumask_var_t) changed the output of /proc/cpuinfo for siblings: Example on an AMD Phenom: physical id : 0 siblings : 1 core id : 3 cpu cores : 4 Before that commit it was: physical id : 0 siblings : 4 core id : 3 cpu cores : 4 Instead of cpu_core_mask it now uses cpu_sibling_mask to count siblings. This is due to the following hunk of above commit: | --- a/arch/x86/kernel/cpu/proc.c | +++ b/arch/x86/kernel/cpu/proc.c | @@ -14,7 +14,7 @@ static void show_cpuinfo_core(struct seq_file *m, struct cpuinf | if (c->x86_max_cores * smp_num_siblings > 1) { | seq_printf(m, "physical id\t: %d\n", c->phys_proc_id); | seq_printf(m, "siblings\t: %d\n", | - cpus_weight(per_cpu(cpu_core_map, cpu))); | + cpumask_weight(cpu_sibling_mask(cpu))); | seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id); | seq_printf(m, "cpu cores\t: %d\n", c->booted_cores); | seq_printf(m, "apicid\t\t: %d\n", c->apicid); This was a mistake, because the impact line shows that this side-effect was not anticipated: Impact: reduce per-cpu size for CONFIG_CPUMASK_OFFSTACK=y So revert the respective hunk to restore the old behavior. [ Impact: fix sibling-info regression in /proc/cpuinfo ] Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Rusty Russell <rusty@rustcorp.com.au> LKML-Reference: <20090504182859.GA29045@alberich.amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | amd-iommu: fix iommu flag masksJoerg Roedel2009-05-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The feature bits should be set via bitmasks, not via feature IDs. [ Impact: fix feature enabling in newer IOMMU versions ] Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> LKML-Reference: <20090504102028.GA30307@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: initialize io_bitmap_base on 32bitThomas Gleixner2009-05-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit db949bba3c7cf2e664ac12e237c6d4c914f0c69d (x86-32: use non-lazy io bitmap context switching) broke ioperm for 32bit because it removed the lazy initialization of io_bitmap_base and did not set it to the real bitmap offset. [ Impact: fix non-working sys_ioperm() on 32-bit kernels ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| | * | x86: gettimeofday() vDSO: fix segfault when tv == NULLJohn Wright2009-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the gettimeofday(2) manual: If either tv or tz is NULL, the corresponding structure is not set or returned. Since it is legal to give NULL as the tv argument, the code should make sure tv is not NULL before trying to dereference it. This issue manifests itself on x86_64 when vdso=0 is not on the kernel command-line and libc uses the vDSO for gettimeofday() (e.g. glibc >= 2.7). A simple reproducer: #include <stdio.h> #include <sys/time.h> int main(void) { struct timezone tz; gettimeofday(NULL, &tz); return 0; } See http://bugs.debian.org/466491 for more details. [ Impact: fix gettimeofday(NULL, &tz) segfault ] Signed-off-by: John Wright <john.wright@hp.com> Cc: Andi Kleen <ak@suse.de> Cc: John Wright <john.wright@hp.com> LKML-Reference: <1241037121-14805-1-git-send-email-john.wright@hp.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | Merge branch 'merge' of ↵Linus Torvalds2009-05-05
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix setting of oprofile cpu type powerpc: Update MPC5xxx and Xilinx Virtex maintainer entries powerpc adjust oprofile_cpu_type version 3
| | * | | powerpc: Fix setting of oprofile cpu typeBenjamin Herrenschmidt2009-05-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 2657dd4e301d4841ed67a4fac7d145ad8f3e1b28 introduced a bug where we would now always override the "real" oprofile CPU type with the "compatible" one provided by a pseudo-PVR in the device-tree which is incorrect and breaks oprofile on all current configs since the "compatible" ones aren't yet recognized. This fixes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| | * | | powerpc adjust oprofile_cpu_type version 3Michael Wolf2009-05-01
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Oprofile is changing the naming it is using for the compatibility modes. Instead of having compat-power<x>, oprofile will go to family naming convention and use ibm-compat-v<x>. Currently only ibm-compat-v1 will be defined. The notion of compatibility events just started with POWER6. So there is no way that any other tool could exist that is using these oprofile_cpu_type strings we want to change. Signed-off-by: Mike Wolf <mjw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | Move dtc and libfdt sources from arch/powerpc/boot to scripts/dtcDavid Gibson2009-05-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The powerpc kernel always requires an Open Firmware like device tree to supply device information. On systems without OF, this comes from a flattened device tree blob. This blob is usually generated by dtc, a tool which compiles a text description of the device tree into the flattened format used by the kernel. Sometimes, the bootwrapper makes small changes to the pre-compiled device tree blob (e.g. filling in the size of RAM). To do this it uses the libfdt library. Because these are only used on powerpc, the code for both these tools is included under arch/powerpc/boot (these were imported and are periodically updated from the upstream dtc tree). However, the microblaze architecture, currently being prepared for merging to mainline also uses dtc to produce device tree blobs. A few other archs have also mentioned some interest in using dtc. Therefore, this patch moves dtc and libfdt from arch/powerpc into scripts, where it can be used by any architecture. The vast bulk of this patch is a literal move, the rest is adjusting the various Makefiles to use dtc and libfdt correctly from their new locations. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2009-05-02
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: (45 commits) [ARM] 5489/1: ARM errata: Data written to the L2 cache can be overwritten with stale data [ARM] 5490/1: ARM errata: Processor deadlock when a false hazard is created [ARM] 5487/1: ARM errata: Stale prediction on replaced interworking branch [ARM] 5488/1: ARM errata: Invalidation of the Instruction Cache operation can fail davinci: DM644x: NAND: update partitioning davinci: update DM644x support in preparation for more SoCs davinci: DM644x: rename board file davinci: update pin-multiplexing support davinci: serial: generalize for more SoCs davinci: DM355 IRQ Definitions davinci: DM646x: add interrupt number and priorities davinci: PSC: Clear bits in MDCTL reg before setting new bits davinci: gpio bugfixes davinci: add EDMA driver davinci: timers: use clk_get_rate() [ARM] pxa/littleton: add missing da9034 touchscreen support [ARM] pxa/zylonite: configure GPIO18/19 correctly, used by 2 GPIO expanders [ARM] pxa/zylonite: fix the issue of unused SDATA_IN_1 pin get AC97 not working [ARM] pxa: make ads7846 on corgi and spitz to sync on HSYNC [ARM] pxa: remove unused CPU_FREQ_PXA Kconfig symbol ...
| | * | | [ARM] 5489/1: ARM errata: Data written to the L2 cache can be overwritten ↵Catalin Marinas2009-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | with stale data This patch is a workaround for the 460075 Cortex-A8 (r2p0) erratum. It configures the L2 cache auxiliary control register so that the Write Allocate mode for the L2 cache is disabled. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | [ARM] 5490/1: ARM errata: Processor deadlock when a false hazard is createdCatalin Marinas2009-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a workaround for the 458693 Cortex-A8 (r2p0) erratum. It sets the corresponding bits in the auxiliary control register so that the PLD instruction becomes a NOP. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | [ARM] 5487/1: ARM errata: Stale prediction on replaced interworking branchCatalin Marinas2009-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the workaround for the 430973 Cortex-A8 (r1p0..r1p2) erratum. The BTAC/BTB is now flushed at every context switch. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | [ARM] 5488/1: ARM errata: Invalidation of the Instruction Cache operation ↵Catalin Marinas2009-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | can fail This patch implements the recommended workaround for erratum 411920 (ARM1136, ARM1156, ARM1176). Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | Merge branch 'fix' of ↵Russell King2009-04-28
| | |\ \ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
| | | * | | [ARM] pxa/littleton: add missing da9034 touchscreen supportEric Miao2009-04-26
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Eric Miao <eric.miao@marvell.com>
| | | * | | [ARM] pxa/zylonite: configure GPIO18/19 correctly, used by 2 GPIO expandersEric Miao2009-04-26
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Eric Miao <eric.miao@marvell.com>
| | | * | | [ARM] pxa/zylonite: fix the issue of unused SDATA_IN_1 pin get AC97 not workingEric Miao2009-04-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GPIO17_SDATA_IN_1 and GPIO36_SDATA_IN_1 are originally designed for the 2nd codec but unused on the board, yet they are initialized incorrectly by the bootloader as the SDATA_IN_1 alternate function, thus causing AC97 fail to work. Fix this issue by configuring these pins as normal GPIO to avoid the noise from these pins being treated as signals from the 2nd codec. Signed-off-by: Eric Miao <eric.miao@marvell.com>
| | | * | | [ARM] pxa: make ads7846 on corgi and spitz to sync on HSYNCEric Miao2009-04-26
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Eric Miao <eric.miao@marvell.com>
| | | * | | [ARM] pxa: remove unused CPU_FREQ_PXA Kconfig symbolPhilipp Zabel2009-04-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cpufreq drivers for pxa2xx/3xx are now built-in automatically as soon as CPU_FREQ is enabled. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Eric Miao <eric.miao@marvell.com>
| | | * | | [ARM] pxa: remove duplicate select statements from KconfigGuennadi Liakhovetski2009-04-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ARCH_PXA selects HAVE_CLK and COMMON_CLKDEV twice in arch/arm/Kconfig. Remove the second entry. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Eric Miao <eric.miao@marvell.com>
| | | * | | [ARM] pxa: fix issue of muxed GPIO irq_chip functions touching non-muxed GPIOsEric Miao2009-04-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pxa_gpio_irq_type() and pxa_unmask_muxed_gpio() will touch non-muxed GPIOs (0 and 1 on PXA2xx/PXA3xx) bits in GRERx and GFERx, which is incorrect. Actually, only those bits should get updated if the corresponding bits are set in c->irq_mask as well. Fix this by updating only those relevant bits. Reported-and-tested-by: Daniel Ribeiro <drwyrm@gmail.com> Signed-off-by: Eric Miao <eric.miao@marvell.com>
| | * | | | Merge branch 'for-rmk' of ↵Russell King2009-04-27
| | |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci
| | | * | | | davinci: DM644x: NAND: update partitioningDavid Brownell2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update NAND partitioning for the dm6446 evm, unmasking the hidden data at the beginning and letting the kernel be updated from Linux. - This is boot-compatible with TI's software (U-Boot 1.20 and both the 2.6.10 and 2.6.18 kernels), in terms of startup and loading kernels from flash. - In the same way, it's also boot-compatible with mainline U-Boot, which stores U-Boot params in block 0 not block 16. - It's not quite compatible with systems that previously used NAND partitions to hold (filesystem) data. The compatibilities are a bit different based on which kernel was used previously + Users of TI/MV kernels no longer see mtd2 "params" (mainline u-boot env is in a different place) * Filesystem is now mtd2 ... vs mtd3 + Users of GIT kernels now see mtd0 and mtd1 partitions * Filesystem partition starts 640 KBytes earlier * Filesystem is now mtd2 ... vs mtd0 * Linux now *uses* the flash-resident BBT * Removes annoying slowdown/hiccup during boot * Potentially ~64KB less space available with TI/MV kernels If you *used* NAND partitions from Linux, there is no solution that's fully compatible with all previous kernels in those respects ... ergo this "best compromise". It'd be good to back back up the filesystem data; or, carry your own backwards-compatibility patch for awhile. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: update DM644x support in preparation for more SoCsKevin Hilman2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rework DM644x code into SoC specific and board specific parts. This is also to generalize the structure a bit so it's easier to add support for new SoCs in the DaVinci family. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: DM644x: rename board fileKevin Hilman2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename DM6446 EVM board file, no functional changes. Code is updated and reworked in following patch. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: update pin-multiplexing supportKevin Hilman2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update MUX support to be more general and useful across multiple SoCs in the DaVinci family. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: serial: generalize for more SoCsKevin Hilman2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: DM355 IRQ Definitionss-paulraj@ti.com2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding IRQ defintions for DaVinci DM355 and default interrupt priorities for DM355 Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: DM646x: add interrupt number and prioritiesSudhakar Rajashekhara2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: PSC: Clear bits in MDCTL reg before setting new bitsMark A. Greer2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clear any set bits in the 'NEXT' field of the MDCTL register in the Power and Sleep Controller (PSC) before setting any new bits. This also allows some minor cleanup by removing some no longer needed lines of code. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: gpio bugfixesDavid Brownell2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the DaVinci GPIO code to work better on non-dm6446 parts, notably the dm355: - Only handle the number of GPIOs the chip actually has. So for example on dm6467, GPIO-42 is the last GPIO, and trying to use GPIO-43 now fails cleanly; or GPIO-72 on dm6446. - Enable GPIO interrupts on each 16-bit GPIO-irq bank ... previously, only the first five were enabled, so GPIO-80 and above (on dm355) wouldn't trigger IRQs. - Use the right IRQ for each GPIO bank. The wrong values were used for dm355 chips, so GPIO IRQs got routed incorrectly. - Handle up to four pairs of 16-bit GPIO banks ... previously only three were handled, so accessing GPIO-96 and up (e.g. on dm355) would oops. - Update several comments that were dm6446-specific. Verified by receiving GPIO-1 (dm9000) and GPIO-5 (msp430) IRQs on the DM355 EVM. One thing this doesn't do is handle the way some of the GPIO numbers on dm6467 are reserved but aren't valid as GPIOs. Some bitmap logic could fix that if needed. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: add EDMA driverKevin Hilman2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Original code for 2.6.10 and 2.6.28 series done by Texas Instruments and MontaVista, but major updates and rework done by Troy Kisky and David Brownell. Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Cc: Troy Kisky <troy.kisky@boundarydevices.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: timers: use clk_get_rate()Kevin Hilman2009-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use clock framework instead of hard-coded CLOCK_TICK_RATE for determining timer tick frequencies. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: add arch_ioremap() which uses existing static mappingsKevin Hilman2009-04-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add arch-specific ioremap() which uses any existing static mappings in place of doing a new mapping. From now on, drivers should always use ioremap() instead of IO_ADDRESS(). In addition, remove the davinci_[read|write]* macros in favor of using ioremap. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: major rework of clock, PLL, PSC infrastructureKevin Hilman2009-04-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a significant rework of the low-level clock, PLL and Power Sleep Controller (PSC) implementation for the DaVinci family. The primary goal is to have better modeling if the hardware clocks and features with the aim of DVFS functionality. Highlights: - model PLLs and all PLL-derived clocks - model parent/child relationships of PLLs and clocks - convert to new clkdev layer - view clock frequency and refcount via /proc/davinci_clocks Special thanks to significant contributions and testing by David Brownell. Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| | | * | | | davinci: add runtime CPU detection supportKevin Hilman2009-04-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-23 17:48:06 -0500