aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/plat-s3c64xx (follow)
AgeCommit message (Collapse)AuthorFilesLines
2010-01-07ARM: S3C64XX: Fix possible clock look in EPLL and MPLL clock chainsBen Dooks1-9/+1
There is a possibility of a loop happening in the PLL output clock chain on the S3C64XX series. clk_mpll's parent was set to be clk_mout_mpll, but this is fed from clk_fout_epll (which is also clk_mpll). clk_mpll is meant to be the output from the MPLL, and clk_mout_mpll is a seperate clock derived from the mux of clk_mpll and clk_fin_mpll and thus should be considered a seperate clock. Anything using clk_mpll directly really should not be relying on this being the clock that is eventually routed to a peripheral, so remove the loop and ensure that the clocks accurately represent the clock chain in the device. The clk_mpll is not being used outside of the s3c6400-clock.c code, so this change should not break anything else. Do the same for the EPLL. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-09Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivialLinus Torvalds1-2/+0
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits) tree-wide: fix misspelling of "definition" in comments reiserfs: fix misspelling of "journaled" doc: Fix a typo in slub.txt. inotify: remove superfluous return code check hdlc: spelling fix in find_pvc() comment doc: fix regulator docs cut-and-pasteism mtd: Fix comment in Kconfig doc: Fix IRQ chip docs tree-wide: fix assorted typos all over the place drivers/ata/libata-sff.c: comment spelling fixes fix typos/grammos in Documentation/edac.txt sysctl: add missing comments fs/debugfs/inode.c: fix comment typos sgivwfb: Make use of ARRAY_SIZE. sky2: fix sky2_link_down copy/paste comment error tree-wide: fix typos "couter" -> "counter" tree-wide: fix typos "offest" -> "offset" fix kerneldoc for set_irq_msi() spidev: fix double "of of" in comment comment typo fix: sybsystem -> subsystem ...
2009-12-08Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds6-24/+78
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (272 commits) Fix soc_common PCMCIA configuration ARM: 5827/1: SA1100: h3100/h3600: emit messages on failed gpio_request ARM: 5826/1: SA1100: h3100/h3600: always build htc-egpio driver ARM: 5825/1: SA1100: h3600: update defconfig ARM: 5824/1: SA1100: reuse h3600 PCMCIA driver on h3100 ARM: 5823/1: SA1100: h3100/h3600: add support for gpio-keys ARM: 5822/1: SA1100: h3100/h3600: clean up #includes ARM: 5821/1: SA1100: h3100/h3600: revise copyright boilerplates ARM: 5820/1: SA1100: h3100/h3600: split h3600.c ARM: 5819/1: SA1100: h3100/h3600: merge h3600.h and h3600_gpio.h into h3xxx.h ARM: 5818/1: SA1100: h3100/h3600: drop old GPIO definitions ARM: 5817/1: SA1100: h3100/h3600: configure all unused gpios as inputs ARM: 5816/1: SA1100: h3600: remove IRQ_GPIO_* definitions ARM: 5815/1: SA1100: h3100/h3600: remove now unused assign_h3600_egpio handlers ARM: 5814/1: SA1100: h3100/h3600: convert all users of assign_h3600_egpio to gpiolib ARM: 5813/1: SA1100: h3100/h3600: add htc-egpio driver ARM: 5812/1: SA1100: h3100/h3600: separate machine-specific LCD helpers ARM: 5811/2: pcmcia: convert sa1100_h3600 driver to gpiolib ARM: 5799/1: SA1100: h3600: stop setting direction for LCD pins ARM: 5798/1: SA1100: h3600: remove unused cruft from h3600.h ...
2009-12-07Merge branch 'for-next' into for-linusJiri Kosina1-2/+0
Conflicts: kernel/irq/chip.c
2009-12-04Merge branch 'topic/asoc' into for-linusTakashi Iwai1-1/+100
2009-12-04S3C64XX: Staticise platform data for PCM devicesMark Brown1-2/+2
The symbols aren't declared and don't need to be exported, they go along with the device structure. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Ben Dooks <ben-linux@fluff.org>
2009-12-03ARM: S3C6410: Correct names of IISv4 data output pin definitionsMark Brown1-3/+3
The naming of the defines suggests that there are three IISv4 ports with one data line each when in fact there is a single IISv4 port with three data lines. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01ARM: S3C64XX: add HSMMC2 supportMaurus Cuelenaere1-0/+20
This adds support for the third SDHCI controller. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01ARM: S3C64XX: add support for all group 0 external interruptsMaurus Cuelenaere2-5/+26
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01ARM: S3C64XX: fix USB OTG compilationMaurus Cuelenaere1-0/+5
This adds the S3C_VA_USB_HSPHY mapping. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01ARM: S3C64XX: Redo voltage ranges for cpufreqMark Brown1-8/+7
The documentation for the S3C6410 CPU voltage scaling is rather unclear, with omitted values for several speed settings. Originally the code was using only quoted values, resulting in some fairly odd settings. The S3C6410 is also unusual in that the both the maximum and minimum voltages quoted scale as the frequency rises, rather than just the minimum voltage. Clean this up a bit by always using the specified typical settings as the minimum voltage (ignoring any specified minimum voltage) in order to avoid running near the edge of the processor capabilities. Also use the next quoted maximum voltages rather than the typical voltages where no maximum voltage is quoted, allowing operation on a greater range of systems. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01ARM: S3C64XX: Separate out regulator and frequency latenciesMark Brown1-7/+13
Currently the transition latency reported by the S3C64xx cpufreq driver includes both the time for the CPU to reclock itself and the time for a regulator to change voltage. This means that if a regulator is not in use then the transition latency reported is excessively high. In future the regulator API will be extended to report latencies so the driver will be able to query the performance of a given regulator. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-12-01ARM: S3C64XX: Provide logging when CPU frequencies are eliminated due to clocksMark Brown1-1/+4
This provides symmetry with the voltage based checks done for the regulator. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-18ARM: S3C64XX: Defined PCM controller platform devicesJassi Brar1-1/+100
Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-11-09ARM: S3C64XX: DMA: Free node for non-circular queuesJassi Brar1-0/+6
We need to free the buff and lli nodes if the buffer queue is not CIRCULAR. Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-09ARM: S3C64XX: DMA: Callback with correct buffer pointerJassi Brar1-1/+28
buffdone callback should be called per buffer request with pointer to the latest serviced request. 'next' should point to the one next to currently active. Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-09ARM: S3C64XX: DMA: Make src and dst transfer size sameJassi Brar1-4/+2
Some devices don't seem to work if the source and desitnation transfer widths are not same. For example, SPI dma xfers, with 8bits/word, don't work without this patch. Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-09ARM: S3C64XX: DMA: Unify callback functions for success/failureJassi Brar1-21/+13
Replace s3c64xx_dma_tcirq and s3c64xx_dma_errirq with the common s3c64xx_dma_buffdone. Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-09ARM: S3C64XX: DMA: Protect buffer pointers while manipulationJassi Brar1-0/+5
Ensure the DMA buffer points are not updated from another source during the process of enquing a buffer. Signed-off-by: Jassi Brar <jassi.brar@samsung.com> [ben-linux@fluff.org: Updated patch comment] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-11-09Kconfig: Remove useless and sometimes wrong commentsMichael Roth1-2/+0
Additionally, some excessive newlines removed. Signed-off-by: Michael Roth <mroth@nessie.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-10-26ARM: S3C64XX: Set rate of crystal muxMark Brown1-0/+3
The current code assumes that the external clock mux will be set to the crystal. Set this up explicitly within the clock API. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-10-26ARM: S3C64XX: Fix S3C64XX_CLKDIV0_ARM_MASK valueKukjin Kim1-2/+2
Fix the values of S3C6400_CLKDIV0_ARM_MASK and S3C6410_CLKDIV0_ARM_MASK. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-09-18Merge branch 'next-s3c-fixes' of git://aeryn.fluff.org.uk/bjdooks/linuxRussell King4-8/+18
2009-09-17Merge branch 'next-s3c64xx-fixes' into next-s3c-fixesBen Dooks3-7/+9
2009-09-17ARM: S3C64XX: Provide for board-specific IRQsMark Brown1-1/+9
Set up some IRQ space to allocation to off-SoC interrupt controllers. Default this to 16 IRQs. If individual boards require more than this then they will need to modify this file so allocating a small number helps reduce the number of modifications required. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-09-16ARM: S3C64XX: DMA: Debugged alloc's with GFP_KERNEL flag in Intr context.Jassi1-2/+2
s3c2410_dma_enqueue makes call to kzalloc and dma_pool_alloc with GFP_KERNEL flag set, this can be an issue for drivers, like I2S, which call s3c2410_dma_enqueue from dma-bufferdone callback. Change the flag GFP_KERNEL to GFP_ATOMIC to avoid any problems. Signed-Off-by: Jassi <jassi.brar@samsung.com> [ben-linux@fluff.org: Minor description edit and re-wrap] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-09-16ARM: S3C64XX: DMA: 'size' argument of dma_pool_createJassi1-1/+1
Provide actual minimum(struct pl080s_lli) size of block to dma_pool_create call, instead of hardcoded 32 bytes. Signed-Off-by: Jassi <jassi.brar@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-09-16ARM: S3C64XX: DMA: struct s3c64xx_dma_buff lli fix.Jassi1-1/+1
Correct the lli structure in struct s3c64xx_dma_buff which should have been 'struct pl080s_lli' (samsung specific) instead of the generic version 'struct pl080_lli' Signed-Off-by: Jassi <jassi.brar@samsung.com> [ben-linux@fluff.org: Edited description and subject fields] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-09-16ARM: S3C64XX: Fix divider value calculation in s3c64xx_roundrate_clksrcThomas Abraham1-1/+1
In s3c64xx_roundrate_clksrc function, the calculation is wrong. This patch fixes this calculation. Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-09-16ARM: S3C6410: update clk->parent when setting clock sourceThomas Abraham1-0/+2
This ensures the clock hierarchy data structures are updated when we change the clock source in the actual hardware registers. Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> [ben-linux@fluff.org: Minor re-indentation of subject] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-09-16ARM: S3C6410: use correct divider_shift in setrate_clksrc()Thomas Abraham1-2/+2
In s3c64xx_setrate_clksrc() we used sclk->shift, but actually need to use sclk->divider_shift to correctly calculate the value for the divider register. Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> [ben-linux@fluff.org: Minor re-indentation of description] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-09-12Merge branch 'master' into develRussell King1-2/+0
2009-08-16ARM: S3C: Add S3C_DEV_NAND Kconfig entryBen Dooks1-0/+1
Currently the S5PC100 does not define S3C_PA_NAND, leaving the NAND device definitions in arch/arm/plat-s3c/dev-nand.c unbuildable. Add a KConfig entry to select whether this is built. As backwards compatibility, both the S3C24XX and S3C64XX define the new configuration in their main Kconfig files until better support for basing this selection on a per-machine basis can be sorted out. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-08-14ARM: S3C: Move S3C64xx audio devices into S3C64xx directoryMark Brown2-1/+70
Allowing us to make the Kconfig a little bit saner. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-07-30Merge branch 's3c-fixes-rc4' of git://aeryn.fluff.org.uk/bjdooks/linuxRussell King1-2/+2
2009-07-29S3C64XX: Fix ARMCLK configurationMark Brown1-1/+1
The value of armclk_mask needs to be inverted for use as a mask on the register value when updating ARM_RATIO. This is critical for cpufreq support, without it attempts to scale the frequency of the core trash pretty much the entire clock tree. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-07-29S3C64XX: Fix get_rate() for ARMCLKMark Brown1-1/+1
If the requested clock is faster than the parent clock then the parent clock is the closest we can get to the request so we need to return that instead of the requested clock. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-07-25ARM: includecheck fix: plat-s3c64xx/pm.cJaswinder Singh Rajput1-2/+0
fix the following 'make includecheck' warning: arch/arm/plat-s3c64xx/pm.c: plat/regs-gpio.h is included more than once. Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Acked-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-06-22[ARM] S3C64XX: add to_irq() support for EINT() GPIOMarek Szyprowski1-0/+6
N group Add to_irq() function to onvert gpio to irq for external interrupt group (GPN). Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-22[ARM] S3C64XX: clock.c: fix typo in usb-host clock ctrlbitPeter Korsgaard1-1/+1
The usb-host clock was using the wrong define (the SCLK enable for the usb-host-bus) to change the HCLK register instead of the HCLK_UHOST bit. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-22[ARM] S3C64XX: fix HCLK gate definesPeter Korsgaard1-5/+5
A few typos seems to have sneaked into the HCLK gate defines, causing the usb host clock to not get enabled. Fix them according to the reference manual and throw in the 3d accel bit for good measure. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-16[ARM] S3C64XX: Initial support for DVFSMark Brown2-0/+263
This patch provides initial support for CPU frequency scaling on the Samsung S3C ARM processors. Currently only S3C6410 processors are supported, though addition of another data table with supported clock rates should be sufficient to enable support for further CPUs. Use the regulator framework to provide optional support for DVFS in the S3C cpufreq driver. When a software controllable regulator is configured the driver will use it to lower the supply voltage when running at a lower frequency, giving improved power savings. When regulator support is disabled or no regulator can be obtained for VDDARM the driver will fall back to scaling only the frequency. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-06-10Merge branch for-rmk-devel of git://aeryn.fluff.org.uk/bjdooks/linux into develRussell King18-8/+1572
2009-05-18[ARM] S3C: Merge next-s3c64xx-dma2 into for-rmk-develBen Dooks4-0/+800
Merge branch 'next-s3c64xx-dma2' into for-rmk-devel Conflicts: arch/arm/plat-s3c64xx/Makefile
2009-05-18[ARM] S3C64XX: Lower severity of DMA loggingMark Brown1-1/+1
The message was missing a severity macro so pick pr_debug(). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-18[ARM] S3C64XX: DMA supportBen Dooks4-0/+800
Add support for the DMA blocks in the S3C64XX series of CPUS, which are based on the ARM PL080 PrimeCell system. Unfortunately, these DMA controllers diverge from the PL080 design by adding another DMA controller register and configuration for OneNAND. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-17[ARM] S3C64XX: Use common watchdog reset for system reset.Ben Dooks1-0/+5
Use the newly moved <plat/watchdog-reset.h> to perform the arch_reset() call which has been unimplemented for a while. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-15[ARM] S3C64XX: fix GPIO debugMarek Szyprowski1-1/+1
Fix compilation bug when debug was enabled Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-15[ARM] S3C64XX: GPIO include cleanupMarek Szyprowski1-10/+10
Cleanup arm/plat-s3c64xx/include/plat/gpio-bank-h.h include file. Using shift-left operation with value >32 is a bad habit. Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C64XX: Add ARM clockBen Dooks2-2/+76
Add ARM clock to provide 'arm' from the APLL to the ARM core. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.