aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm
Commit message (Collapse)AuthorAge
* OMAP3: MMC: Add mux for pinsVikram Pandita2009-08-28
| | | | | | | | | | For OMAP3 add MMC1 MMC2 pin mux MMC3 mux is not added as there are multiple configurations possible, so the muxing is left to be done in board file. Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Chikkature Rajashekar <madhu.cr@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP3: rx51_defconfig: add twl4030 to rx51 default configurationTimo Kokkonen2009-08-28
| | | | | | | twl4030 watchdog will be compiled as a module by default. Signed-off-by: Atal Shargorodsky <ext-atal.shargorodsky@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP3: 3430SDP: Fix defconfigSergio Aguirre2009-08-28
| | | | | | | | | | | | | | | This patch makes the SDP boot again with the defconfig. Changes done: - Removes other selected boards. - Sets the Low Level debug output for UART1. - Disables some paripherals from other boards. Tested on a SDP3430-VE5.1.0 (OMAP3430 ES3.1) Signed-off-by: Sergio Aguirre <saaguirre@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP2/3: Pass irqflags to 8250 driverVikram Pandita2009-08-28
| | | | | | | | | | | Pass irqflags to 8250 driver with platform_data. At least Zoom2 has IRQF_TRIGGER_RISING requirement for the 8250 GPIO irq. This patch is dependent on 8250 driver changes getting accepted upstream: http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=commit;h=7053133124d5cdf207c1168c7a0c582a18e12ea7 Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP: iommu: add initial debugfs supportHiroshi DOYU2009-08-28
| | | | | | | | | | | | | | | | | | | This enables to peek the following data. $ /debug/iommu/isp# ls mem nr_tlb_entries regs mmap pagetable tlb $ /debug/iommu/isp# head pagetable L: da: pa: ----------------------------------------- 2: 00001000 8ae4a002 2: 00002000 8e7bb002 2: 00003000 8ae49002 2: 00004000 8ae65002 ..... Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP: iommu: fix wrong argument in flush_cache_vmap()Hiroshi DOYU2009-08-28
| | | | | | | | | The second argument should be the end address, not the length. Actually there will not be any effect on the behavior of this driver since flush_cache_vmap() calls flush_cache_all() in the end. Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP2: n8x0: add n8x0_defconfigKalle Valo2009-08-28
| | | | | | | Add defconfig file for OMAP2 N800 and N810 devices. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP2: add board file for Nokia N800 and N810Kalle Valo2009-08-28
| | | | | | | | | | Add board file for Nokia N800 and N810 devices. Currently only serial ports, onenand and spi are configured, more to come later. Tested on Nokia N800. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP2: compile usb-tusb6010.cKalle Valo2009-08-28
| | | | | | | | For some reason usb-tusb6010.c was't compiled, add it to Makefile and Kconfig. This is prepraration for upcoming n8x0 support. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP1: AMS_DELTA: add modem supportJanusz Krzysztofik2009-08-28
| | | | | | | | | | | | | | This patch adds support for modem device found on Amstrad E3 (Delta) board. Based on earlier patch by Jonathan McDowell, available at http://the.earth.li/pub/e3/2.6.19/ams-delta-modem.patch. Modified after Ladislav Michl's arch/arm/mach-omap1/board-voiceblue.c. This patch is dependent on 8250 driver changes getting accepted upstream: http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=commit;h=7053133124d5cdf207c1168c7a0c582a18e12ea7 Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP: GPIO: Avoid generating extra IRQsEero Nurkkala2009-08-28
| | | | | | | | | | | It is possible for GPIO IRQ lines configured with falling edge triggering only to get IRQs at the rising edge upon the exit of offmode. And vice versa. Prevent such IRQs to arrive by generating the IRQ obeying the detection scheme. Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP: Remove omap boot parsing codeRoger Quadros2009-08-28
| | | | | | | | | Remove left over code for parsing omap boot tags. This is no longer used. see commit fc0ef1bfa1353e048e055374a09c75320d22231b Signed-off-by: Roger Quadros <ext-roger.quadros@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP: UART: drop OMAP_TAG_UART, enable all UARTs, auto-disabled on idleKalle Valo2009-08-28
| | | | | | | | | | | | | | | | OMAP tags are deprecrated so drop them. Drop UART config data which decides which UARTs to enable during boot. This is no longer necessary since serial core code disables clocks after inactivity. Background: with new UART idle code, all on-chip UARTs are idled using a configurable inactivity timer (default 5 seconds.) After the inactivity timer, UART clocks are disabled automatically. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP: remove OMAP_TAG_SERIAL_CONSOLEKalle Valo2009-08-28
| | | | | | | | Omap tags are deprecated and remove OMAP_TAG_SERIAL_CONSOLE. Console must be enabled with the console boot parameter instead. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP: Remove ifdefs for io.hTony Lindgren2009-08-28
| | | | | | Remove ifdefs for io.h Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP: Rename OMAP_MPUIO_BASE to OMAP1_MPUIO_BASETony Lindgren2009-08-28
| | | | | | Rename OMAP_MPUIO_BASE to OMAP1_MPUIO_BASE Signed-off-by: Tony Lindgren <tony@atomide.com>
* OMAP: Remove OMAP_IO_ADDRESS, use OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS insteadTony Lindgren2009-08-28
| | | | | | | | | | | Search and replace OMAP_IO_ADDRESS with OMAP1_IO_ADDRESS and OMAP2_IO_ADDRESS, and convert omap_read/write into a functions instead of a macros. Also rename OMAP_MPUIO_VBASE to OMAP1_MPUIO_VBASE. In the long run, most code should use ioremap + __raw_read/write instead. Signed-off-by: Tony Lindgren <tony@atomide.com>
* [ARM] Kirkwood: enable eSATA on QNAP TS-219PJohn Holland2009-08-24
| | | | | | | | | | | Initialize PCI/PCIe on the QNAP TS-119, TS-219 and TS-219P hardware allowing the use of the discrete eSATA controller connected to the PCIe bus in the TS-219P. Signed-off-by: John Holland <john.holland@cellent-fs.de> Tested-by: Thomas Reitmayr <treitmayr@devbase.at> Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Nicolas Pitre <nico@marvell.com>
* [ARM] Kirkwood: __init requires linux/init.hMartin Michlmayr2009-08-24
| | | | | | | | | | | | | | | | Include linux/init.h for __init to fix this error: CC [M] drivers/net/wireless/wl12xx/boot.o In file included from arch/arm/mach-kirkwood/include/mach/gpio.h:13, from arch/arm/include/asm/gpio.h:5, from include/linux/gpio.h:7, from drivers/net/wireless/wl12xx/boot.c:24: arch/arm/plat-orion/include/plat/gpio.h:32: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘orion_gpio_init’ make[6]: *** [drivers/net/wireless/wl12xx/boot.o] Error 1 make[5]: *** [drivers/net/wireless/wl12xx] Error 2 Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Nicolas Pitre <nico@marvell.com>
* ARM: 5673/1: U300 fix initsection compile warningLinus Walleij2009-08-15
| | | | | | | | | The u300_init_check_chip() function was not properly tagged with the __init macro and provided a initsection mismatch on compilation. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge branch 's3c-fixes' of git://aeryn.fluff.org.uk/bjdooks/linuxRussell King2009-08-15
|\
| * ARM: S3C24XX: Fix clkout mpx errorDavide Rizzo2009-08-13
| | | | | | | | | | | | | | | | Bug correction: CLK Outputs cannot have XTAL as parent Signed-off-by: Davide Rizzo <elpa.rizzo@gmail.com> [ben-linux@fluff.org: updated patch subject] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* | Merge branch 'for-rmk-rc' of git://git.pengutronix.de/git/imx/linux-2.6Russell King2009-08-15
|\ \
| * | mx31moboard: invert sdhc ro signal senseValentin Longchamp2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Small confusion with our hardware engineer, the WP signal (RO) is active low on our boards, the signal has to inverted. This is a pretty straightforward patch, it could even go to -rc, but if not, then push it for 2.6.32. Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * | mx3: Fix double pin allocation in pcm037_eet.cGuennadi Liakhovetski2009-07-31
| | | | | | | | | | | | | | | | | | | | | SPI pins are now allocated in pcm037.c, remove them from EET. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | | ARM: Fix broken highmem supportRussell King2009-08-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, highmem is selectable, and you can request an increased vmalloc area. However, none of this has any effect on the memory layout since a patch in the highmem series was accidentally dropped. Moreover, even if you did want highmem, all memory would still be registered as lowmem, possibly resulting in overflow of the available virtual mapping space. The highmem boundary is determined by the highest allowed beginning of the vmalloc area, which depends on its configurable minimum size (see commit 60296c71f6c5063e3c1f1d2619ca0b60940162e7 for details on this). We should create mappings and initialize bootmem only for low memory, while the zone allocator must still be told about highmem. Currently, memory nodes which are completely located in high memory are not supported. This is not a huge limitation since systems relying on highmem support are unlikely to have discontiguous memory with large holes. [ A similar patch was meant to be merged before commit 5f0fbf9ecaf3 and be available in Linux v2.6.30, however some git rebase screw-up of mine dropped the first commit of the series, and that goofage escaped testing somehow as well. -- Nico ] Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Reviewed-by: Nicolas Pitre <nico@marvell.com>
* | | Merge branch 'ixp4xx-fixes' of ↵Russell King2009-08-13
|\ \ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6
| * | | IXP4xx: Fix IO_SPACE_LIMIT for 2.6.31-rc core PCI changesMikael Pettersson2009-08-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2.6.31-rc kernels don't boot on my ixp4xx box (ds101), because the libata driver doesn't find the PCI IDE controller any more. 2.6.30 was fine. I traced this to a PCI update (1f82de10d6b1d845155363c895c552e61b36b51a) in 2.6.30-git19. Diffing the kernel boot logs from 2.6.30-git18 and 2.6.30-git19 illustrates the breakage: > --- dmesg-2.6.30-git18 2009-08-04 01:45:22.000000000 +0200 > +++ dmesg-2.6.30-git19 2009-08-04 01:45:46.000000000 +0200 > @@ -26,6 +26,13 @@ > pci 0000:00:02.2: PME# supported from D0 D1 D2 D3hot > pci 0000:00:02.2: PME# disabled > PCI: bus0: Fast back to back transfers disabled > +pci 0000:00:01.0: BAR 0: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 1: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 2: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 3: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:01.0: BAR 4: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:02.0: BAR 4: can't allocate I/O resource [0x10000-0xffff] > +pci 0000:00:02.1: BAR 4: can't allocate I/O resource [0x10000-0xffff] > bio: create slab <bio-0> at 0 > SCSI subsystem initialized > NET: Registered protocol family 2 > @@ -44,11 +51,7 @@ > console [ttyS0] enabled > serial8250.0: ttyS1 at MMIO 0xc8001000 (irq = 13) is a XScale > Driver 'sd' needs updating - please use bus_type methods > -PCI: enabling device 0000:00:01.0 (0140 -> 0141) > -scsi0 : pata_artop > -scsi1 : pata_artop > -ata1: PATA max UDMA/100 cmd 0x1050 ctl 0x1060 bmdma 0x1040 irq 28 > -ata2: PATA max UDMA/100 cmd 0x1058 ctl 0x1064 bmdma 0x1048 irq 28 > +pata_artop 0000:00:01.0: no available native port > Using configured DiskOnChip probe address 0x50000000 > DiskOnChip found at 0x50000000 > NAND device: Manufacturer ID: 0x98, Chip ID: 0x73 (Toshiba NAND 16MiB 3,3V 8-bit) The specific change in 1f82de10d6b1d845155363c895c552e61b36b51a responsible for this failure turned out to be the following: > --- a/drivers/pci/probe.c > +++ b/drivers/pci/probe.c > @@ -193,7 +193,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, > res->flags |= pci_calc_resource_flags(l) | IORESOURCE_SIZEALIGN; > if (type == pci_bar_io) { > l &= PCI_BASE_ADDRESS_IO_MASK; > - mask = PCI_BASE_ADDRESS_IO_MASK & 0xffff; > + mask = PCI_BASE_ADDRESS_IO_MASK & IO_SPACE_LIMIT; > } else { > l &= PCI_BASE_ADDRESS_MEM_MASK; > mask = (u32)PCI_BASE_ADDRESS_MEM_MASK; Every arch except arm's ixp4xx defines IO_SPACE_LIMIT as an all-bits-one bitmask, typically -1UL but sometimes only a 16-bit 0x0000ffff. But ixp4xx defines it as 0xffff0000, which is now causing the PCI failures. Russell King noted that ixp4xx has 64KB PCI IO space, so IO_SPACE_LIMIT should be 0x0000ffff. This patch makes that change, which fixes the PCI failures on my ixp4xx box. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
* | | | Merge branch 'pm-upstream/fixes' of ↵Russell King2009-08-10
|\ \ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm
| * | | | OMAP3: Overo: add missing pen-down GPIO definitionKevin Hilman2009-08-05
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP: GPIO: clear/restore level/edge detect settings on mask/unmaskKevin Hilman2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If IRQ triggering is enabled, it can trigger a pending interrupt even for masked interrupts. Any pending GPIO interrupts can prevent the powerdomain from hitting retention. Problem found, reported and additional review and testing by Chunquiu Wang. Tested-by: Chunquiu Wang <cqwang@motorola.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP3: PM: Fix wrong sequence in suspend.Jouni Hogander2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Powerdomain previous state is checked after restoring new states in suspend. This patch fixes this problem. Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP: PM: CPUfreq: obey min/max settings of policyEero Nurkkala2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the min/max settings from CPUfreq policy rather than processor defined min/max settings. Without this patch, it's possible to scale frequency outside the current policy range. Signed-off-by: Eero Nurkkala <ext-eero.nurkkala@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP2/3/4: UART: allow in-order port traversalKevin Hilman2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use list_add_tail() when adding discovered UART ports. This is so traversal using list_for_each_entry() will traverse the list in the order they were found. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP2/3/4: UART: Allow per-UART disabling wakeup for serial portsKevin Hilman2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch causes the OMAP uarts to honor the sysfs power/wakeup file for IOPAD wakeups. Before the OMAP was always woken up from off mode on a rs232 signal change. This patch also creates a different platform device for each serial port so that the wakeup properties can be control per port. By default, IOPAD wakeups are enabled for each UART. To disable, # echo disabled > /sys/devices/platform/serial8250.0/power/wakeup Where serial8250.0 can be replaced by .1, or .2 to control the other ports. Original idea and original patch from Russ Dill <russ.dill@gmail.com> Cc: Russ Dill <russ.dill@gmail.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP3: Fixed crash bug with serial + suspendTero Kristo2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It was possible for an unhandled interrupt to occur if there was incoming serial traffic during wakeup from suspend. This was caused by the code in arch-arm/mach-omap2/serial.c keeping interrupt enabled all the time, but not acking its interrupts. Applies on top of PM branch. Use the PM begin/end hooks to ensure that the "serial idle" interrupts are disabled during the suspend path. Also, since begin/end hooks are now used, use the suspend_state that is passed in the begin hook instead of the enter hook as per the platform_suspend_ops docs. Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP4: UART: cleanup special case IRQ handlingKevin Hilman2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Streamline the OMAP4 special IRQ assignments by putting inside normal init loop instead of having a separate loop. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP3: PM: Do not build suspend code if SUSPEND is not enabledKevin Hilman2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP3: PM: prevent module wakeups from waking IVA2Kevin Hilman2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By default, prevent functional wakeups from inside a module from waking up the IVA2. Let DSP Bridge code handle this when loaded. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP3: PM: Clear pending PRCM reset flags on initKevin Hilman2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Any pending reset flags can prevent retention. Ensure they are all cleared during boot. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP3: PM: Ensure PRCM interrupts are cleared at bootKevin Hilman2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Any pending PRCM interrupts can prevent retention. Ensure they are cleared during boot. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP3: PM: CM_REGADDR macros using wrong nameKevin Hilman2009-08-05
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
| * | | | OMAP2/3: PM: make PM __init calls staticKevin Hilman2009-08-05
| |/ / / | | | | | | | | | | | | Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
* | | | Merge branch 'omap_fixes_31' of git://git.pwsan.com/linux-2.6Russell King2009-08-10
|\ \ \ \
| * | | | OMAP3 clock: correct module IDLEST bits: SSI; DSS; USBHOST; HSOTGUSBPaul Walmsley2009-07-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix two bugs in the OMAP3 clock tree pertaining to the SSI, DSS, USBHOST, and HSOTGUSB devices. These devices are both interconnect initiators and targets. Without this patch, clk_enable()s on clocks for these modules can be very high latency (potentially up to ~200 milliseconds) and message such as the following are generated: Clock usbhost_48m_fck didn't enable in 100000 tries Two bugs are fixed by this patch. First, OMAP hardware only supports target CM_IDLEST register bits on ES2+ chips and beyond. ES1 chips should not wait for these clocks to enable. So, split the appropriate clocks into ES1 and ES2+ variants, so that kernels running on ES1 devices won't try to wait. Second, the current heuristic in omap2_clk_dflt_find_idlest() will fail for these clocks. It assumes that the CM_IDLEST bit to wait upon is the same as the CM_*CLKEN bit, which is false[1]. Fix by implementing custom clkops .find_idlest function pointers for the appropriate clocks that return the correct slave IDLEST bit shift. This was originally fixed in the linux-omap kernel during 2.6.29 in a slightly different manner[2][3]. In the medium-term future, all of the module IDLEST code will eventually be moved to the omap_hwmod code. Problem reported by Jarkko Nikula <jhnikula@gmail.com>: http://marc.info/?l=linux-omap&m=124306184903679&w=2 ... 1. See for example 34xx TRM Revision P Table 4-213 and 4-217 (for the DSS case). 2. http://www.spinics.net/lists/linux-omap/msg05512.html et seq. 3. http://lkml.indiana.edu/hypermail/linux/kernel/0901.3/01498.html Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Jarkko Nikula <jhnikula@gmail.com>
| * | | | OMAP2 clock: 2430 I2CHS uses non-standard CM_IDLEST registerPaul Walmsley2009-07-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE [1]. Fix by implementing a custom clkops .find_idlest function to return the correct slave IDLEST register. ... 1. OMAP2430 Multimedia Device Package-on-Package (POP) Silicon Revision 2.1 (Rev. V) Technical Reference Manual, tables 4-99 and 4-105. Signed-off-by: Paul Walmsley <paul@pwsan.com>
| * | | | OMAP2/3 clock: split, rename omap2_wait_clock_ready()Paul Walmsley2009-07-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some OMAP2/3 hardware modules have CM_IDLEST attributes that are not handled by the current omap2_wait_clock_ready() code. In preparation for patches that fix the unusual devices, rename the function omap2_wait_clock_ready() to omap2_wait_module_ready() and split it into three parts: 1. A clkops-specific companion clock return function (by default, omap2_clk_dflt_find_companion()) 2. A clkops-specific CM_IDLEST register address and bit shift return function (by default, omap2_clk_dflt_find_idlest()) 3. Code to wait for the CM to indicate that the module is ready (omap2_cm_wait_idlest()) Clocks can now specify their own custom find_companion() and find_idlest() functions; used in subsequent patches. Signed-off-by: Paul Walmsley <paul@pwsan.com>
| * | | | OMAP3 SDRC: Move the clk stabilization delay to the right placeRajendra Nayak2009-07-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The clock stabilization delay post a M2 divider change is needed even before a SDRC interface clock re-enable and not only before jumping back to SDRAM. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| * | | | OMAP3 SDRC: Fix freeze when scaling CORE dpll to < 83MhzRajendra Nayak2009-07-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a bug in the CORE dpll scaling sequence which was errouneously clearing some bits in the SDRC DLLA CTRL register and hence causing a freeze. The issue was observed only on platforms which scale CORE dpll to < 83Mhz and hence program the DLL in fixed delay mode. Issue reported by Limei Wang <E12499@motorola.com>, with debugging assistance from Richard Woodruff <r-woodruff2@ti.com> and Girish Ghongdemath <girishsg@ti.com>. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Cc: Limei Wang <E12499@motorola.com> Cc: Richard Woodruff <r-woodruff2@ti.com> Cc: Girish Ghongdemath <girishsg@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> [paul@pwsan.com: updated patch description to include collaboration credits]
| * | | | OMAP2/3 SDRC: don't set SDRC_POWER.PWDENA on bootPaul Walmsley2009-07-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Stop setting SDRC_POWER.PWDENA on boot. There is a nasty erratum (34xx erratum 1.150) that can cause memory corruption if PWDENA is enabled. Based originally on a patch from Samu P. Onkalo <samu.p.onkalo@nokia.com>. Tested on BeagleBoard rev C2. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Samu P. Onkalo <samu.p.onkalo@nokia.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 14:18:35 -0500