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2008-07-05i.MX2 family: Add GPIO multiplexing supportJuergen Beisert
This patch adds GPIO multiplexing support for the imx1/mxc2 family of procesors. Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
2008-07-05MXC arch: Simplify architecture's irq sourcesJuergen Beisert
Simplify architecture's irq headers and sources, to share these files between MXC3 and MXC2. Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
2008-07-05MX3: Add basic support for LogicPD i.MX31 LiteKitDaniel Mack
This patch adds basic support for i.MX31 LiteKit by LogicPD. With printascii() in kernel/printk.c, it boots right into the rootfs-panic. Note: This is a modified version of Daniel's patch to fit into this patch stack. > On 09.06.2008, at 17:26, Russell King - ARM Linux wrote: > > > I would much prefer it if board specific includes were included by the > > code which needs them rather than in asm/arch/hardware.h.  With the > > device model, drivers shouldn't need to include any board specific > > includes - only the board specific C file should need it. > > The new version of this patch (#5102) has been uploaded to the patch > tracker this morning. Signed-off-by: Daniel Mack <daniel@caiaq.de> -- arch/arm/configs/mx31litekit_defconfig | 1100 ++++++++++++++++++++++++++++++ arch/arm/mach-mx3/Kconfig | 7 arch/arm/mach-mx3/Makefile | 1 arch/arm/mach-mx3/mx31lite.c | 96 ++ include/asm-arm/arch-mxc/board-mx31lite.h | 38 + include/asm-arm/arch-mxc/debug-macro.S | 3 6 files changed, 1245 insertions(+)
2008-07-05MX31: add basic pcm037 board supportSascha Hauer
This patch adds basic board support for phytecs pmc037 board. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05MXC: add debug-macro.S for mxcSascha Hauer
This patch adds debug-macro.S for arch-mxc Disadvantage: Due to the board specific UART definition, these macros (and compile time) will fail for multi board kernels. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05i.MXC family: Adding timer supportJuergen Beisert
This patch adds timer support for the i.MX machine family. This code can be used on the following machs: - i.MX1 (tested) - i.MX2 (i.MX21 (to be tested), i.MX27 (tested)) - i.MX3 (i.MX31 (tested)) TODO: It seems impossible to build a kernel for more than one CPU because the timer do not follow the platform device rules. So it does only work if timer 1 can be accessed on all CPUs at the same address. Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05MXC: add io multiplexing functions for mx3Sascha Hauer
This patch adds functions to use the io multiplexer on mx3 platforms. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05MXC arch: Add gpio support for the whole platformJuergen Beisert
This patch bases on the one from Daniel Mack. The most important change to Daniel's patch is to be more generic. This gpio routine supports at least the i.MX27 and i.MX31 processors. Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de> Acked-by: Daniel Mack <daniel@caiaq.de>
2008-07-05mxc: add MX3 support for i.MX internal UART driverSascha Hauer
This patch adds MX3 support for the i.MX internal uart driver. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05i.MX3: introduce clock APISascha Hauer
This patch introduces the clock API for for arch-mxc Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05MXC family: Add clock handlingJuergen Beisert
Internal clock path handling for the mxc CPUs. Changed against the original Freescale code (and against clocklib for example): - clock rate is always calculated whenever one ask for the current rate (means struct clk has no more a member called "rate"). So switching the PLL base frequency will propagate immediately to all other clocks that are depending on this frequency. Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
2008-07-05IMX: introduce clock APISascha Hauer
This patch introduces the clock API for i.MX and converts all in-Kernel drivers to use it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05IMX UART: Add board specific init/exit functionsSascha Hauer
Add platform specific init functions. Also rename the struct platform_device dev into pdev. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05MXC: do not include board specific header from architecture includeSascha Hauer
do not include board-mx31ads.h from hardware.h, instead include it directly only where needed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-03[ARM] S3C24XX: PWM API support.Ben Dooks
Add support for PWM in the S3C24XX series of SoC via the PWM API. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-07-03[ARM] S3C2412: Correct parents for EREFCLK and UREFCLKMatthieu Castet
For s3c2412, set parent for clk_erefclk and clk_urefclk. This allow for example to use xtal or extclk for i2s clock. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Matthieu Castet <matthieu.castet@parrot.com>
2008-07-03[ARM] S3C24XX: Add PWM timer MUX definesBen Dooks
Add timer defines for the MUX settings for each of the PWM timers to add to the per-timer defines already in the file. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-07-03[ARM] S3C24XX: Add gpiolib supportBen Dooks
Add support for gpilib on all S3C24XX platforms. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-07-03[ARM] 5122/1: imx_dma_request_by_prio simpilficationPaulius Zaleckas
imx_dma_request_by_prio can return channel number by itself. No need to supply variable address through parameters. Also converted all drivers using this function. Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03[ARM] 5092/1: Fix the I-cache invalidation on ARMv6 and later CPUsCatalin Marinas
This patch adds the I-cache invalidation in update_mmu_cache if the corresponding vma is marked as executable. It also invalidates the I-cache if a thread migrates to a CPU it never ran on. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03[ARM] fix header guardsVegard Nossum
Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03Merge branch 'fb' into develRussell King
Conflicts: arch/arm/Kconfig
2008-07-03[ARM] rpc: ecard: remove deprecated ecard_address() and relativesRussell King
ecard_address() is obsolete, and has been marked deprecated since at least 2.6.12-rc2. All in-tree users have been updated to use the new approach, so it's time to remove this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03[ARM] rpc: deprecate __ioaddr() and __ioaddrc() helpersRussell King
Now everything is converted to use MMIO accessors, these helpers are no longer required. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03[ARM] 5044/1: pwm_bl: add init/notify/exit callbacksPhilipp Zabel
This allows platform code to manipulate GPIOs and brightness level as needed. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03[ARM] pxa: make zylonite use the generic PWM backlight drivereric miao
Patch mostly by Eric Miao, minor edits by rmk. Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03[ARM] pxa: add generic PWM backlight drivereric miao
Patch mostly from Eric Miao, with minor edits by rmk to convert Eric's driver to a generic PWM-based backlight driver. Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03ARM: OMAP2: Clock: New OMAP2/3 DPLL rate rounding algorithmPaul Walmsley
This patch adds a new rate rounding algorithm for DPLL clocks on the OMAP2/3 architecture. For a desired DPLL target rate, there may be several multiplier/divider (M, N) values which will generate a sufficiently close rate. Lower N values result in greater power economy. However, lower N values can cause the difference between the rounded rate and the target rate ("rate error") to be larger than it would be with a higher N. This can cause downstream devices to run more slowly than they otherwise would. This DPLL rate rounding algorithm: - attempts to find the lowest possible N (DPLL divider) to reach the target_rate (since, according to Richard Woodruff <r-woodruff@ti.com>, lower N values save more power than higher N values). - allows developers to set an upper bound on the error between the rounded rate and the desired target rate ("rate tolerance"), so an appropriate balance between rate fidelity and power savings can be set. This maximum rate error tolerance is set via omap2_set_dpll_rate_tolerance(). - never returns a rounded rate higher than the target rate. The rate rounding algorithm caches the last rounded M, N, and rate computation to avoid rounding the rate twice for each clk_set_rate() call. (This patch does not yet implement set_rate for DPLLs; that follows in a future patch.) The algorithm trades execution speed for rate accuracy. It will find the (M, N) set that results in the least rate error, within a specified rate tolerance. It does this by evaluating each divider setting - on OMAP3, this involves 128 steps. Another approach to DPLL rate rounding would be to bail out as soon as a valid rate is found within the rate tolerance, which would trade rate accuracy for execution speed. Alternate implementations welcome. This code is not yet used by the OMAP24XX DPLL clock, since it is currently defined as a composite clock, fusing the DPLL M,N and the M2 output divider. This patch also renames the existing OMAP24xx DPLL programming functions to highlight that they program both the DPLL and the DPLL's output multiplier. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP2: Clock: Add OMAP3 DPLL autoidle functionsPaul Walmsley
This patch adds support for DPLL autoidle control to the OMAP3 clock framework. These functions will be used by the noncore DPLL enable and disable code - this is because, according to the CDP code, the DPLL autoidle status must be saved and restored across DPLL lock/bypass/off transitions. N.B.: the CORE DPLL (DPLL3) has three autoidle mode options, rather than just two. This code currently does not support the third option, low-power bypass autoidle. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: Add OMAP chip type structure; clean up mach-omap2/id.cPaul Walmsley
Add a new OMAP chip identification interface, omap_chip_id. omap_chip_id is a structure which contains one bit for each OMAP2/3 CPU type, and on 3430, ES level. For example, the CHIP_IS_OMAP2420 bit is set in omap_chip at boot on an OMAP2420. On OMAP3430ES2, both CHIP_IS_OMAP3430 and CHIP_IS_OMAP3430ES2 bits are set. omap_chip is set in mach-omap2/id.c by _set_omap_chip(). Other code should use the omap_chip_is() function to test against omap_chip. Also, clean up id.c by splitting some code out of omap_check_revision() into its own function, _set_system_rev(); and converting some debug printk()s into pr_debug(). Second revision. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: Introduce omap_globals and prcm access functions for multi-omapTony Lindgren
New struct omap_globals contains the omap processor specific module bases. Use omap_globals to set the various base addresses to make detecting omap chip type simpler. Also introduce OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS for future multi-omap patches. Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: Remove __REG access for multi-omapTony Lindgren
This does not play nicely with multi-omap as it cannot be replaced by a function in io.c for omaps with different IO bases. Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: USB: Change omap USB code to use omap_read/write instead of __REGTony Lindgren
Change omap USB code to use omap_read/write instead of __REG for multi-omap Cc: David Brownell <david-b@pacbell.net> Cc: linux-usb@vger.kernel.org Cc: i2c@lm-sensors.org Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: Change omap_cf.c and omap_nor.c to use omap_readw/writew instead ↵Tony Lindgren
of __REG Change omap_cf.c and omap_nor.c to use omap_readw/writew instead of __REG. This is needed for multi-omap in the future. Cc: David Brownell <david-b@pacbell.net> Cc: linux-pcmcia@lists.infradead.org Cc: linux-mtd@lists.infradead.org Signed-off-by: Tony Lindren <tony@atomide.com>
2008-07-03ARM: OMAP: CLKFW: Initial debugfs support for omap clock frameworkHiroshi DOYU
debugfs can provide the infrastructure to trace the dependencies of clock tree hierarchy quite visibly. This patch enables to keep track of clock tree hierarchy and expose their attributes under each clock directry as below: omap:~# tree -d -L 2 /debug/clock/omap_32k_fck/ /debug/clock/omap_32k_fck/ |-- gpt10_fck |-- gpt11_fck |-- gpt1_fck |-- per_32k_alwon_fck | |-- gpio2_fck | |-- gpio3_fck | |-- gpio4_fck | |-- gpio5_fck | |-- gpio6_fck | `-- wdt3_fck |-- ts_fck `-- wkup_32k_fck |-- gpio1_fck `-- wdt2_fck 14 directories omap:~# tree /debug/clock/omap_32k_fck/gpt10_fck/ /debug/clock/omap_32k_fck/gpt10_fck/ |-- flags |-- rate `-- usecount 0 directories, 3 files Although, compared with David Brownell's small patch, this may look bit overkilling, I expect that this debugfs can deal with other PRCM complexities at the same time. For example, powerdomain dependencies can be expressed by using symbolic links of these clocks if powerdomain supports dubgfs as well. Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: Clean up interrupt lines to fix warnings for multi-omapTony Lindgren
If boards with different NR_IRQS are compiled together, tons of compiler warnings are emitted about redefining NR_IRQS. This patch fixes the problem by adding up NR_IRQS in a common place. Patch also removes quite a bit of now unnecessary code. Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: McBSP: Prepare for splitting into omap1 and omap2 codeEduardo Valentin
This patch transform mcbsp code to use platform data from arch/arm/plat-omap/devices.c It also gets ride of ifdefs on mcbsp.c code. To do it, a platform data structure was defined. Signed-off-by: Eduardo Valentin <eduardo.valentin@indt.org.br> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: SRAM: Split sram24xx.S into sram242x.S and sram243x.STony Lindgren
Split sram24xx.S into sram242x.S and sram243x.S Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: DMA: Clean-up codeTony Lindgren
DMA clean-up, mostly checkpatch.pl fixes. Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: DMA: Remove __REG accessTony Lindgren
Remove __REG access in DMA code, use dma_read/write instead: - dynamically set the omap_dma_base based on the omap type - omap_read/write becomes dma_read/write - dma channel registers are read with dma_ch_read/write Cc: David Brownell <david-b@pacbell.net> Cc: linux-usb@vger.kernel.org Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: DMA: Make channels dynamic for multi-bootTony Lindgren
Make DMA channels dynamic for multi-boot Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: Add OMAP3430 base definesPaul Walmsley
Add symbolic constants for OMAP3430 base addresses; include that file in hardware.h. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-03ARM: OMAP: DMTimer: Optimize by adding load and startRichard Woodruff
This patch optimizes the timer load and start sequence. By combining the load and start a needless posted wait can be removed from the system timer execution path. * Before patch register writes are taking up .078% @ 500MHz during idle. Address |total |min |max |avr |count|ratio% old\process\default_idle|7.369s |0.0us|999.902ms|14.477ms|509. |62.661% ld\Global\cpu_v7_do_idle|4.265s |0.0us|375.786ms|24.374ms|175. |36.270% (UNKNOWN)|17.503ms|0.us|531.080us|5.119us|3419. |0.148% r\omap_dm_timer_set_load|8.135ms|0.0us|79.887us|15.065us|540. |0.069% <-- \vmlinux-old\Global\_end|2.023ms|0.0us|4.000us|0.560us|3613. |0.017% -old\Global\__raw_readsw|1.962ms|0.0us|108.610us|9.167us|214. |0.016% old\smc91x\smc_interrupt|1.353ms|0.0us|10.212us|2.348us|576. |0.011% s/namei\__link_path_walk|1.161ms|0.0us|4.310us|0.762us| 1524. |0.009% \omap_dm_timer_write_reg|1.085ms|0.0us|126.150us|2.153us|504. |0.009% <-- * After patch timer functions do not show up in top listings for long captures. Signed-off-by: Richard Woodruff <r-woodruff2@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-07-02Merge branch 'for-2.6.26' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-2.6.26' of git://git.kernel.dk/linux-2.6-block: Properly notify block layer of sync writes block: Fix the starving writes bug in the anticipatory IO scheduler
2008-07-02Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c: Fix bad hint about irqs in i2c.h i2c: Documentation: fix device matching description
2008-07-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (55 commits) net: fib_rules: fix error code for unsupported families netdevice: Fix wrong string handle in kernel command line parsing net: Tyop of sk_filter() comment netlink: Unneeded local variable net-sched: fix filter destruction in atm/hfsc qdisc destruction net-sched: change tcf_destroy_chain() to clear start of filter list ipv4: fix sysctl documentation of time related values mac80211: don't accept WEP keys other than WEP40 and WEP104 hostap: fix sparse warnings hostap: don't report useless WDS frames by default textsearch: fix Boyer-Moore text search bug netfilter: nf_conntrack_tcp: fixing to check the lower bound of valid ACK ipv6 route: Convert rt6_device_match() to use RT6_LOOKUP_F_xxx flags. netlabel: Fix a problem when dumping the default IPv6 static labels net/inet_lro: remove setting skb->ip_summed when not LRO-able inet fragments: fix race between inet_frag_find and inet_frag_secret_rebuild CONNECTOR: add a proc entry to list connectors netlink: Fix some doc comments in net/netlink/attr.c tcp: /proc/net/tcp rto,ato values not scaled properly (v2) include/linux/netdevice.h: don't export MAX_HEADER to userspace ...
2008-07-01net-sched: change tcf_destroy_chain() to clear start of filter listPatrick McHardy
Pass double tcf_proto pointers to tcf_destroy_chain() to make it clear the start of the filter list for more consistency. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-01i2c: Fix bad hint about irqs in i2c.hWolfram Sang
i2c.h mentions -1 as a not-issued irq. This false hint was taken by of_i2c and caused crashes. Don't give any advice as 'no irq' is not consistent across all architectures yet and it is not needed internally by the i2c-core. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-01Properly notify block layer of sync writesJens Axboe
fsync_buffers_list() and sync_dirty_buffer() both issue async writes and then immediately wait on them. Conceptually, that makes them sync writes and we should treat them as such so that the IO schedulers can handle them appropriately. This patch fixes a write starvation issue that Lin Ming reported, where xx is stuck for more than 2 minutes because of a large number of synchronous IO in the system: INFO: task kjournald:20558 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kjournald D ffff810010820978 6712 20558 2 ffff81022ddb1d10 0000000000000046 ffff81022e7baa10 ffffffff803ba6f2 ffff81022ecd0000 ffff8101e6dc9160 ffff81022ecd0348 000000008048b6cb 0000000000000086 ffff81022c4e8d30 0000000000000000 ffffffff80247537 Call Trace: [<ffffffff803ba6f2>] kobject_get+0x12/0x17 [<ffffffff80247537>] getnstimeofday+0x2f/0x83 [<ffffffff8029c1ac>] sync_buffer+0x0/0x3f [<ffffffff8066d195>] io_schedule+0x5d/0x9f [<ffffffff8029c1e7>] sync_buffer+0x3b/0x3f [<ffffffff8066d3f0>] __wait_on_bit+0x40/0x6f [<ffffffff8029c1ac>] sync_buffer+0x0/0x3f [<ffffffff8066d48b>] out_of_line_wait_on_bit+0x6c/0x78 [<ffffffff80243909>] wake_bit_function+0x0/0x23 [<ffffffff8029e3ad>] sync_dirty_buffer+0x98/0xcb [<ffffffff8030056b>] journal_commit_transaction+0x97d/0xcb6 [<ffffffff8023a676>] lock_timer_base+0x26/0x4b [<ffffffff8030300a>] kjournald+0xc1/0x1fb [<ffffffff802438db>] autoremove_wake_function+0x0/0x2e [<ffffffff80302f49>] kjournald+0x0/0x1fb [<ffffffff802437bb>] kthread+0x47/0x74 [<ffffffff8022de51>] schedule_tail+0x28/0x5d [<ffffffff8020cac8>] child_rip+0xa/0x12 [<ffffffff80243774>] kthread+0x0/0x74 [<ffffffff8020cabe>] child_rip+0x0/0x12 Lin Ming confirms that this patch fixes the issue. I've run tests with it for the past week and no ill effects have been observed, so I'm proposing it for inclusion into 2.6.26. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-30[MTD] orion_nand: add chip_delay parameterSaeed Bishara
Some SoCs need a different chip_delay value. Signed-off-by: Saeed Bishara <saeed@marvell.com> Acked-by: Jörn Engel <joern@logfs.org> Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Nicolas Pitre <nico@marvell.com>
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