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2009-06-22[ARM] S3C64XX: add to_irq() support for EINT() GPIOMarek Szyprowski
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 Korsgaard
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 Korsgaard
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 Brown
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 King
2009-05-18[ARM] S3C: Merge next-s3c64xx-dma2 into for-rmk-develBen Dooks
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 Brown
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 Dooks
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 Dooks
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 Szyprowski
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 Szyprowski
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 Dooks
Add ARM clock to provide 'arm' from the APLL to the ARM core. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C64XX: Configure clocks for DMA controllerMark Brown
Add missing DMA controller block clocks. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C64XX: Add HCLKx2Werner Almesberger
Add doubled HCLK to S3C64xx. Signed-off-by: Werner Almesberger <werner@openmoko.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C6410: Add CAMIF clockWerner Almesberger
Add camera interface clock to S3C6410. Signed-off-by: Werner Almesberger <werner@openmoko.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C64XX: Add S3C6400 SDHCI setup supportBen Dooks
Add support for S3C6400 SDHCI channels 0 and 1, making the GPIO code common to both S3C6400 and S3C6410. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C64XX: Add S3C6400 CPU detection.Ben Dooks
Add detection support for the S3C6400 SoC which has it's id register in a different place to the S3C6410. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C6400: Core support for S3C6400 SoCBen Dooks
Add the core support files for the Samsung S3C6400 SoC. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] VIC: Add power management deviceBen Dooks
Add power management support to the VIC by registering each VIC as a system device to get suspend/resume events going. Since the VIC registeration is done early, we need to record the VICs in a static array which is used to add the system devices later once the initcalls are run. This means there is now a configuration value for the number of VICs in the system. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C: GPIO PM core GPIOlib integrationBen Dooks
Move the GPIO suspend/resume support inline with the gpiolib support so that it will work with both the S3C24XX and S3C64XX series. The s3c_gpio_chip is extended to have a pm callback and a save block to keep the state of the GPIO over suspend, and the code from the s3c24xx implementation is added to a new common file. The suspend process now uses the list of registered chips to go through saving and restoring each one as appropriate, using the pm callback to select the appropriate routine depending on the type of control register present. This change also means that any additional GPIO added should not require changes to the PM. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C64XX: Add IRQ PM codeBen Dooks
Add support for saving the state of the IRQ registers over suspend. This requires moving the S3C64XX UART registers into <plat/regs-serial.h> and adding irq-pm.c which saves the state of all the IRQ registers. The irq-pm.c saves all the IRQ registers, including the IRQ_EINT and IRQ_EINT_GROUP registers as it was easier than adding three different files. Also ensuring that all the registers are restored to the same state as before suspend is considered to be the best thing to do. Note, we do not suspend the VIC here, this is done by the VIC driver itself. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C64XX: Add generic s3c64xx sys device.Ben Dooks
Add an s3c64xx_sysclass and device for items that currently want to bind to any s3c64xx processor. The first user of this will be parts of the s3c64xx suspend support which need to save device state over suspend/resume. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C64XX: Initial support for PM (suspend to RAM)Ben Dooks
Add the initial support for the S3C64XX based systems to use suspend-to-RAM to sleep. Includes basic debugging for use with the SMDK6410 usign the LEDs on the baseboard. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-05-07[ARM] S3C64XX: Add USB OHCI supportBen Dooks
Add USB OHCI host definitions. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-03-10[ARM] S3C64XX: add AHB_CON and SPCON register address definitionsBen Dooks
Add the address definitions for S3C64XX_AHB_CONx and SPCON registers for use in the PM code. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-03-10[ARM] S3C64XX: Add definitions for the GPIO memory port configurationsBen Dooks
Add defines for the registers that control the GPIO pins that are run the memory interface. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-03-10[ARM] S3C64XX: SYSCON power and sleep control register definesBen Dooks
Add the register defines for the sleep and power control functions in the S3C64XX SYSCON register block. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-03-10[ARM] S3C64XX: Add S3C64XX_SPCON register bit definitionsBen Dooks
Add the definitions for the SPCON register in the GPIO block. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-03-10[ARM] S3C64XX: Add GPIO SPCONSLP and SLPEN register definitionsBen Dooks
Add GPIO register definitions for SPCONSLP and SLPEN for controlling the state of the pins over sleep. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-03-10[ARM] S3C64XX: Add EINT group regs and move IRQ_EINT to regs-gpio.hBen Dooks
Add definitions for the EINT group registers and move the EINT IRQ register definitions out of arch/arm/plat-s3c64xx/irq-eint.c so that they are available for re-use with PM and the other code. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-03-10[ARM] S3C64XX: Add modem registers and a virtual mapBen Dooks
Add the modem registers and a virtual mapping for the modem block. This is is required as there are registers that control the LCD block that need to be saved over suspend as well as interrupt controls. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-03-06Merge branch 'master' of ↵Ben Dooks
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into s3c-fixes
2009-02-27[ARM] S3C64XX: Fix s3c64xx_setrate_clksrcWerner Almesberger
Some of the rate selection logic in s3c64xx_setrate_clksrc uses what appears to be parent clock selection logic. This patch corrects it. I also added a check for overly large dividers to prevent them from changing unrelated clocks. Signed-off-by: Werner Almesberger <werner@openmoko.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-02-27[ARM] S3C64XX: sparse warnings in arch/arm/plat-s3c64xx/irq.cBen Dooks
Fix the following sparse warnings in arch/arm/plat-s3c64xx/irq.c arch/arm/plat-s3c64xx/irq.c:210:23: warning: incorrect type in initializer (different address spaces) arch/arm/plat-s3c64xx/irq.c:210:23: expected void *reg_base arch/arm/plat-s3c64xx/irq.c:210:23: got void [noderef] <asn:2>*regs arch/arm/plat-s3c64xx/irq.c:215:2: warning: incorrect type in argument 1 (different address spaces) arch/arm/plat-s3c64xx/irq.c:215:2: expected void const volatile [noderef] <asn:2>*<noident> arch/arm/plat-s3c64xx/irq.c:215:2: got void * Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-02-27[ARM] S3C64XX: sparse warnings in arch/arm/plat-s3c64xx/s3c6400-clock.cBen Dooks
Fix the following sparse warnings in s3c6400-clock.c: 39:12: warning: symbol 'clk_ext_xtal_mux' was not declared. Should it be static? 66:12: warning: symbol 'clk_fout_apll' was not declared. Should it be static? 81:19: warning: symbol 'clk_mout_apll' was not declared. Should it be static? 91:12: warning: symbol 'clk_fout_epll' was not declared. Should it be static? 106:19: warning: symbol 'clk_mout_epll' was not declared. Should it be static? 126:19: warning: symbol 'clk_mout_mpll' was not declared. Should it be static? 148:12: warning: symbol 'clk_dout_mpll' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-02-26[ARM] S3C64XX: Fix USB host clock mux listBen Dooks
The clock list for the USB host bus clock was in the wrong order, move clk_48m to position 0. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-02-26[ARM] S3C64XX: Fix name of USB host clock.Ben Dooks
The usb-host-bus clock should be named usb-bus-host. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-02-26[ARM] S3C64XX: Rename IRQ_UHOST to IRQ_USBHBen Dooks
The USB OHCI host device expects the IRQ definition to be named IRQ_USBH, so rename the S3C64XX IRQ header to match. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-02-26[ARM] S3C64XX: Do gpiolib configuration earlierMark Brown
arch_initcall() runs after the machine init function which means that any configuration of GPIO pins must currently be done later on, for example in callbacks from drivers. Move the initialisation earlier in order to allow machines to configure GPIOs directly in their init functions rather than having to have a callback invoked later on. Some other ARM platforms use this method. Other solutions for this include providing a special interface for setting up GPIOs en masse, adding callbacks to do the GPIO configuration from devices and doing the GPIO configuration implicitly. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-02-26[ARM] S3C64XX: Staticise s3c64xx_init_irq_eint()Mark Brown
It's an initcall and does not need to be exported. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-02-26[ARM] S3C64XX: Fix section mismatch for s3c64xx_register_clocks()Mark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-02-26[ARM] S3C64XX: Set GPIO pin when select IRQ_EINT typeBen Dooks
Set the GPIO pin mode to external interrupt when configuring an IRQ_EINT's IRQ type. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-02-24[ARM] 5411/1: S3C64XX: Fix EINT unmaskMark Brown
Currently the unmask function for EINT interrupts was setting the mask bit rather than clearing it. This was also previously reported and fixed by Kyungmin Park <kyungmin.park@samsung.com> and others. Acked-By: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08[ARM] S3C64XX: Fix EINT group macro definitionMatt Hsu
Fix IRQ_EINT_GROUP which has an extra _ in it and an error in the IRQ offset. Signed-off-by: Matt Hsu <matt_hsu@openmoko.org> [ben-linux@fluff.org: rewrite description] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-12-18[ARM] S3C64XX: Ensure CPU_V6 is selectedBen Dooks
Select CPU_V6 with the S3C64XX series. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-12-18[ARM] S3C: Remove unnecessary <linux/delay.h> includesBen Dooks
As per Russell King's last review comment, find and remove all unnecessary includes of <linux/delay.h> in the files that do not need them. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-12-18Merge branch 'next-s3c64xx-device' into next-mergedBen Dooks
Conflicts: arch/arm/mach-s3c2440/mach-at2440evb.c
2008-12-16[ARM] S3C64XX: Correct the EINT IRQ type configurationMatt Hsu
Select the correct EINT configuration register when configuring the external interrupt level/edge type. Signed-off-by: Matt Hsu <matt_hsu@openmoko.org> [ben-linux@fluff.org: description improvement] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-12-16[ARM] S3C64XX: Mask the pll values correctlyKyungmin Park
Correct the PLL field masks to ensure the PLL functions return the right value. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> [ben-linux@fluff.org: improve the description text] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-12-16[ARM] S3C: Update time initialisation to fix S3C64XX time problemsBen Dooks
The S3C64XX timer is running at the wrong rate due to the assumptions made in the timer initialisation about the way the pwm dividers work. This means that time on the S3C64XX runs twice as fast as it should. Fix the problem by moving to using the clk framework to setup the pwm timer clock muxes, as the pwm-clock code has all the necessary knowledge of how the timer clock inputs are routed. Signed-off-by: Ben Dooks <ben-linux@fluff.org>