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Replacing it with a call to __clk_is_prepared(), which isn't entirely
equivalent but in practice shouldn't matter.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8120/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Add an explicit call to set the desired rate to get the correct
clock routing for the PSC clocks. It wasn't broken before, but
now it's less affected by bootloader changes.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7554/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
On boards which don't support poweroff, systemd complains about this fact.
In case poweroff fails, just sit and spin in the wait loop.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7558/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
With the clock framework in place, remove unused functions and bits,
and drop the CLK_IGNORE_UNUSED flag, which is now unneeded.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7473/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Use the clock framework to en/disable the clock to the au1100
framebuffer device.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7474/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Make use of the clk framework to set up and enable all PSC clocks.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7469/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Add use of the common clock framework to set and enable the 48MHz
clock source for the onchip OHCI and UDC blocks.
Tested on a DB1500. (Au1200 and Au1300 use an external 48MHz crystal).
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7467/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Use the clock framework to get the rate of the peripheral clock.
Remove the now obsolete get_uart_baud_base function.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7468/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This patch introduces common clock framework integration for all
configurable on-chip clocks on Alchemy chips:
- 2 or 3 PLLs which generate integer multiples of the root rate 12MHz,
- 6 dividers which take one of the 3 PLLs as input and divide their
rate by either multiples of 2 or 1 (Au1300).
- another bank of up to 6 muxes which take either one of the 6
above dividers or one of the PLLs directly and divide their rate
further by 1, 2, 3 or 4.
- a few other sources which are used by onchip peripherals and are
informational.
This implementation will take the clock tree as it was set up
by boot firmware: all in-kernel boards should continue to work
without having to set up the clock tree in board code.
CLK_IGNORE_DISABLED will be removed once all drivers have been
converted.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7466/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This patch changes the static memory controller registers to offsets
from base, prefixes them with AU1000_ to avoid silent failures due to
changed addresses and introduces helpers to access them.
No functional changes, comparing assembly of a few select functions shows
no differences.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7463/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This patch changes all absolute SYS_XY registers to offsets from the
SYS block base, prefixes them with AU1000 to avoid silent failures due
to changed addresses, and introduces helper functions to read/write
them.
No functional changes, comparing assembly of a few select functions shows
no differences.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7464/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
CONFIG_DMA_COHERENT is no longer set; default to noncoherent io on
Au1200 revision AB to make USB work.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6745/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
With binutils 2.24 the attempt to switch with microMIPS mode to MIPS III
mode through .set mips3 results in *lots* of warnings like
{standard input}: Assembler messages:
{standard input}:397: Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
during a kernel build. Fixed by using .set arch=r4000 instead.
This breaks support for building the kernel with binutils 2.13 which
was supported for 32 bit kernels only anyway and 2.14 which was a bad
vintage for MIPS anyway.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The au1xxx-ide driver isn't any faster than pata_platform since it
spends a lot of time busy waiting for DMA to finish; faster PIO/DMA
modes only work on the db1200 with a certain cpu speed, UDMA is broken,
and finally the old IDE layer is on death row, so time to switch to
the newer ATA layer.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6662/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Merge the db1200.h and db1300.h headers into their only users.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6660/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This patch merges support for all DB1xxx and PB1xxx
boards into a single image, along with a new single defconfig
for them.
Run-tested on DB1300 and DB1500.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6577/
Patchwork: https://patchwork.linux-mips.org/patch/6659/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
All Alchemy chips have coherent DMA, but for example the USB or AC97
peripherals on the Au1000/1500/1100 are not.
This patch uses DMA_MAYBE_COHERENT on Alchemy and sets coherentio based
on CPU type.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6576/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
enabled __must_check logic triggers a build error for mtx1 and gpr
in the prom init code. Fix by checking the kstrtoul() return value.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6574/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
With CONFIG_GPIOLIB=y gpios need to be requested before they can be
modified. Request the SD carddetect pins, and drop the SPI direction
setup, as the driver does that for us anyway. This gets rid of a
lot of WARN_ON()s triggered by GPIO core, and restores functionality
of the touschreen controller.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6497/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>. Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6320/
Panic() is going to add a \n itself and it's annoying if a panic message rolls
of the screen on a device with no scrollback.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
__initdata tag should be placed between the variable name and equal
sign for the variable to be placed in the intended .init.data section.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/5934/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Replace hardcoded CP0 PRId and CP1 FPIR register access masks throughout.
The change does not touch places that use shifted or partial masks.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5838/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The Kconfig symbol MIPS_DISABLE_OBSOLETE_IDE was added in v2.6.10. It
has never been used. Let's remove it.
The symbol was originally introduced by the following commit
commit 2bfa662b64a7ee593f3039c1d3fd81a7766a63cd
Author: Pete Popov <ppopov@embeddedalley.com>
Date: Tue Oct 12 06:24:19 2004 +0000
- Db1550 bug fixes
- updated defconfig
- updated Kconfig to use DMA_COHERENT since new silicon is coherent
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Patchwork: http://patchwork.linux-mips.org/patch/5064/
Acked-by: John Crispin <blogic@openwrt.org>
The support for PB1100, PB1500, and PB1550 got merged into the code for
DB1000 and DB1550 code in v3.7. When that was done the three related
Kconfig symbols were dropped. But not all related Kconfig macros were
removed. Do so now.
Note that the PB1100 code in the Au1100 LCD driver is removed entirely
and not converted to use its current Kconfig macro. That is done because
the macros it uses (PB1100_G_CONTROL, PB1100_G_CONTROL_BL, and
PB1100_G_CONTROL_VDD) are never defined. Actually only one of these was
ever defined (PB1100_G_CONTROL) but that define was removed in v2.6.34.
So, as far as I can tell, this code could have never compiled.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Patchwork: http://patchwork.linux-mips.org/patch/5040/
Acked-by: John Crispin <blogic@openwrt.org>
Having received another series of whitespace patches I decided to do this
once and for all rather than dealing with this kind of patches trickling
in forever.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Now that the r4k timer is registered no matter what, bump the rating of
the Alchemy 32kHz timer so that it gets used when it is working,
and fall back on the r4k when it isn't.
This fixes a timer-related hang on platform with a working 32kHz timer
(the better rated c0 timer stops while executing 'wait' leading to (almost)
eternal sleep) and an oops on boot on platforms without a working 32kHz
timer (due to double registration of the r4k timer).
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/4728/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
A previous patch converted the Alchemy platform to use the OHCI and EHCI
platform drivers. As a result, all the common logic to handle USB present in
drivers/usb/host/alchemy-common.c has no reason to remain here, so we move it
to arch/mips/alchemy/common/usb.c which is a more appropriate place. This
change was suggested by Manuel Lauss.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert the Alchemy platform to register the ohci-platform driver, now that
the ohci-platform driver properly handles the specific ohci-au1xxx resume
from suspend case.
This also greatly simplifies the power_{on,off} callbacks and make them
work on platform device id instead of checking the OHCI controller base
address like what was done in ohci-au1xxx.c.
Impacted defconfigs are also updated accordingly to select the OHCI platform
driver.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the ehci platform driver power_{on,suspend,off} callbacks to perform the
USB block gate enabling/disabling as what the ehci-au1xxx.c driver does.
Update the db1200 and db1300 defconfigs to now select the EHCI platform
driver.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The PB1100/1500 are similar to their DB-cousins but with a few
more devices on the bus.
This patch adds PB1100/1500 support to the existing DB1100/1500
code.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: lnux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4338/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The PB1550 is more or less a DB1550 without the PCI IDE controller,
a more complicated (read: configurable) Flash setup and some other
minor changes. Like the DB1550 it can be automatically detected by
reading the CPLD ID register bits.
This patch adds PB1550 detection and setup to the DB1550 code.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4337/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Combine support for the DB1200/PB1200, DB1300 and DB1550 boards into
a single kernel image.
defconfig-generated image verified on DB1200, DB1300 and DB1550.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4335/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Without this udelay(1) PCI idsel does not work correctly on the
"singleboard" (T-Mobile Surfbox) for the MiniPCI device. The result is
that PCI configuration fails and the MiniPCI card is not detected
correctly. Instead of
PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [mem 0x40000000-0x4fffffff]
pci_bus 0000:00: root bus resource [io 0x1000-0xffff]
pci 0000:00:03.0: BAR 0: assigned [mem 0x40000000-0x4000ffff]
pci 0000:00:00.0: BAR 0: assigned [mem 0x40010000-0x40010fff]
pci 0000:00:00.1: BAR 0: assigned [mem 0x40011000-0x40011fff]
We see only the CardBus device:
PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [mem 0x40000000-0x4fffffff]
pci_bus 0000:00: root bus resource [io 0x1000-0xffff]
pci 0000:00:00.0: BAR 0: assigned [mem 0x40000000-0x40000fff]
pci 0000:00:00.1: BAR 0: assigned [mem 0x40001000-0x40001fff]
Later the device driver shows this error:
ath5k 0000:00:03.0: cannot remap PCI memory region
ath5k: probe of 0000:00:03.0 failed with error -5
I assume that the logic chip which usually supresses the signal to the CardBus
card has some settling time and without the delay it would still let the
Cardbus interfere with the response from the MiniPCI card.
What I cannot explain is why this behaviour shows up now and not in earlier
kernel versions before. Maybe older PCI code was slower?
Signed-off-by: Bruno Randolf <br1@einfach.org>
Cc: linux-mips@linux-mips.org
Cc: manuel.lauss@googlemail.com
Cc: florian@openwrt.org
Patchwork: https://patchwork.linux-mips.org/patch/4087/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Remove the loop in the cascade handler and instead unconditionally
handle just the first set interrupt coming from the CPLD.
This gets rid of a lot of spurious interrupts being triggered for
the SMSC91111 ethernet chip especially under high(er) IDE load:
"eth0: spurious interrupt (mask = 0xb3)"
Verified on DB1200 and DB1300.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3288/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
YAMON on all devboards provides the "memsize" envvar; in the unlikely
case that it can't be parsed just assume 64MB, which all boards have
at least.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3286/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
- Updates to mxc_nand and gpmi drivers to support new boards and device tree
- Improve consistency of information about ECC strength in NAND devices
- Clean up partition handling of plat_nand
- Support NAND drivers without dedicated access to OOB area
- BCH hardware ECC support for OMAP
- Other fixes and cleanups, and a few new device IDs
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Merge tag 'for-linus-3.5-20120601' of git://git.infradead.org/linux-mtd
Pull mtd update from David Woodhouse:
- More robust parsing especially of xattr data in JFFS2
- Updates to mxc_nand and gpmi drivers to support new boards and device tree
- Improve consistency of information about ECC strength in NAND devices
- Clean up partition handling of plat_nand
- Support NAND drivers without dedicated access to OOB area
- BCH hardware ECC support for OMAP
- Other fixes and cleanups, and a few new device IDs
Fixed trivial conflict in drivers/mtd/nand/gpmi-nand/gpmi-nand.c due to
added include files next to each other.
* tag 'for-linus-3.5-20120601' of git://git.infradead.org/linux-mtd: (75 commits)
mtd: mxc_nand: move ecc strengh setup before nand_scan_tail
mtd: block2mtd: fix recursive call of mtd_writev
mtd: gpmi-nand: define ecc.strength
mtd: of_parts: fix breakage in Kconfig
mtd: nand: fix scan_read_raw_oob
mtd: docg3 fix in-middle of blocks reads
mtd: cfi_cmdset_0002: Slight cleanup of fixup messages
mtd: add fixup for S29NS512P NOR flash.
jffs2: allow to complete xattr integrity check on first GC scan
jffs2: allow to discriminate between recoverable and non-recoverable errors
mtd: nand: omap: add support for hardware BCH ecc
ARM: OMAP3: gpmc: add BCH ecc api and modes
mtd: nand: check the return code of 'read_oob/read_oob_raw'
mtd: nand: remove 'sndcmd' parameter of 'read_oob/read_oob_raw'
mtd: m25p80: Add support for Winbond W25Q80BW
jffs2: get rid of jffs2_sync_super
jffs2: remove unnecessary GC pass on sync
jffs2: remove unnecessary GC pass on umount
jffs2: remove lock_super
mtd: gpmi: add gpmi support for mx6q
...
These will show up as a build failure once we clean up a
misuse of module.h in the mips termios header.
Uses export.h: (EXPORT_SYMBOL)
arch/mips/cavium-octeon/setup.c
arch/mips/pmc-sierra/yosemite/setup.c
arch/mips/rb532/devices.c
arch/mips/sni/setup.c
Uses module.h: (symbol_get/put)
arch/mips/alchemy/devboards/db1200.c
Uses module.h: (print_modules)
arch/mips/kernel/traps.c
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3448/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
