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2014-03-11OMAPDSS: raw read and write endian fixVictor Kamensky
All OMAP IP blocks expect LE data, but CPU may operate in BE mode. Need to use endian neutral functions to read/write h/w registers. I.e instead of __raw_read[lw] and __raw_write[lw] functions code need to use read[lw]_relaxed and write[lw]_relaxed functions. If the first simply reads/writes register, the second will byteswap it if host operates in BE mode. Changes are trivial sed like replacement of __raw_xxx functions with xxx_relaxed variant. Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org> Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
2014-03-11exynos: enable big endian supportVictor Kamensky
Previous patches fixed endian neutral issues in Arndale BSP, so mark it as one that supports big endian Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
2014-03-11exynos: serial clear and set big endian fixVictor Kamensky
Samsung serial driver uses __set_bit and __clear_bit functions directly with h/w registers. But these functions are not endian neutral. In case of BE host before operation on the bit byte swap is needed and byte swap is required after operation on the bit is complete. Patch creates and use __hw_set_bit and __hw_clear_bit, that in case of LE just call __set_bit and __clear_bit, but in case of BE they do required byteswaps Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
2014-03-11exynos: secondary_startup endian fixVictor Kamensky
If kernel operates in BE mode on board that has LE bootloader/rom code, we need to switch CPU to operate in BE mode as soon as possible. generic secondary_startup that is called from exynos specific secondary startup code will do the switch, but we need it to do earlier because exynos specific secondary_startup code works with BE data. Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
2014-03-11exynos: boot serial endian fixVictor Kamensky
uncompress serial line write utils need to use endian neutral functions to read h/w register - i.e in case of BE host byteswap is needed. Fix uart_rd, uart_wr and serial chip fifo related macros Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
2014-03-11exynos: driver raw read and write endian fixVictor Kamensky
Need to use endian neutral functions to read/write LE h/w registers. I.e instead of __raw_read[lw] and _raw_write[lw] functions code need to use read[lw]_relaxed and write[lw]_relaxed functions. If the first just read/write register with memory barrier, the second will byteswap it if host operates in BE mode. This patch covers drivers used by arndale board where all changes are trivial, sed like replacement of __raw_xxx functions with xxx_relaxed variant. Literally this sed program was used to make the change: s|__raw_readl|readl_relaxed|g s|__raw_writel|writel_relaxed|g s|__raw_readw|readw_relaxed|g s|__raw_writew|writew_relaxed|g Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
2014-03-11mmc: dw_mmc endian fixVictor Kamensky
Need to use endian neutral functions to read/write h/w registers. I.e __raw_readl replaced with readl_relaxed and __raw_writel replaced with writel_relaxed. The relaxed version of function will read/write LE h/w register and byteswap it if host operates in BE mode. However in case of this file __raw_read(wlq) and __raw_write(wlq) are also used to transfer data from uchar buffer into h/w mmc host register. And in this case byteswap is not need - bytes of data buffer should go into h/w register in the same order as they are in memory. So we need to split control mci_readl/mci_writel macros from one that operates on data mci_readw_data, mci_readl_data, mci_readq_data, mci_writew, mci_writel_data, mci_writeq_data. The latter one do not do byte swaps. Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
2014-03-11mtd: map.h endian fixVictor Kamensky
Need to use endian neutral functions to read/write LE h/w registers. I.e insted of __raw_readl and _raw_writel, readl_relaxed and writel_relaxed. If the first just read/write register with memory barrier, the second will byteswap it if host operates in BE mode. Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
2014-03-11clk: exynos5420: Enable Gate for sclk_usbphy3*Vivek Gautam
sclk_usbphy3* are the operational clocks used by USB 3.0 PHY on exynos5420 platform, but the same are not handled by the phy-samsung-usb3 driver. So enable the gates for these sclk_usbphy3* for now to make USB 3.0 ports present on smdk5420 working. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: Enable USB support on Exynso5420 platformVivek Gautam
Adding required DT nodes to enable support for USB 2.0 (EHCI/OHCI) and USB 3.0 (DWC3) on exynos5420 platform. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11usb: phy: samsung: Add provision for channel numbers for usb-phyVivek Gautam
Multiple USB-PHY controllers shall be identofied by their aliases, thereby making it possible to use the alias numbers as channel numbers for USB 3.0 PHY controllers. Based on this corresponding PHYs can be powered. This patch also updates binding documentation samsung-usbphy for alias numbers. BUG=chrome-os-partner:19007 TEST=build and boot on smdk5420 and peach pit; tested usb HID devices and mass storage devices on USB 2.0 and USB 3.0 ports. Change-Id: I0afdd1edd0093957d361f7f926c6b4526664e121 Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Reviewed-on: https://gerrit.chromium.org/gerrit/56398 Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Commit-Queue: Julius Werner <jwerner@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11usb: phy: samsung-usb3: Adding exynos5420-usb3phy to device-idVivek Gautam
Adding another device-id for exynos-5420 type SoC, to facilitate separate driver data. BUG=chrome-os-partner:19007 TEST=build and boot on smdk5420 and peach pit; tested usb HID devices and mass storage devices on USB 2.0 and USB 3.0 ports. Change-Id: I9381d40b254cfc6a297c4e5a714c3ab7e31f5f20 Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Reviewed-on: https://gerrit.chromium.org/gerrit/56397 Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Commit-Queue: Julius Werner <jwerner@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11usb: phy: samsung-usb2: Adding exynos5420-usb2phy to device-idVivek Gautam
Adding another device-id for exynos-5420 type SoC, to facilitate separate driver data. BUG=chrome-os-partner:19007 TEST=build and boot on smdk5420 and peach pit; tested usb HID devices and mass storage devices on USB 2.0 and USB 3.0 ports. Change-Id: I127d382982da88caeef4f2878e4d89c6c67fac67 Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Reviewed-on: https://gerrit.chromium.org/gerrit/56396 Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Commit-Queue: Julius Werner <jwerner@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11serial: Samsung: Release interrupts on shutdownMichael O'Reilly
The serial driver never releases the interrupt on shutdown, but it does repeatedly acquire it on startup. $ cat /proc/interrupts 85: 69 0 GIC exynos4210-uart.2, exynos4210-uart.2, exynos4210-uart.2 Signed-off-by: Michael O'Reilly <m@dgmo.org> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: Update node for SATA controller on EXYNOS5250Yuvaraj Kumar C D
This patchset integrate the SATA patches submitted by Vasanth Ananthan. In addition to that SATA and SATA PHY driver will use common clock framework API. Signed-off-by: Vasanth Ananthan <vasanth.a@samsung.com> Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ata: samsung: Rebase as per 3.10-rc1Yuvaraj Kumar C D
This patchset integrate the SATA patches submitted by Vasanth Ananthan. In addition to that SATA and SATA PHY driver will use common clock framework API. Signed-off-by: Vasanth Ananthan <vasanth.a@samsung.com> Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ata: exynos: Remove __init attribute to fix kernel crashTushar Behera
The probe function of SATA phy driver is being accessed later in SATA probe. But it gets poisoned memory during that time. Suspecting __init attribute to be the culprit. Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ata: samsung: Add SATA PHY controller driverVasanth Ananthan
This patch adds a platform driver and I2C client driver for SATA PHY controller Signed-off-by: Vasanth Ananthan <vasanth.a@samsung.com>
2014-03-11ata: samsung: Add SATA controller driverVasanth Ananthan
This patch adds a platform driver for SATA controller. Signed-off-by: Vasanth Ananthan <vasanth.a@samsung.com>
2014-03-11ata: Add SATA PHY utility frameworkVasanth Ananthan
This patch adds SATA PHY utility framework APIs. The framework acts as an interface between the SATA device and the PHY device. The SATA PHY device registers itself with the framework through the APIs provided and the SATA device finds and requests for an appropriate PHY device. Signed-off-by: Vasanth Ananthan <vasanth.a@samsung.com>
2014-03-11ARM: EXYNOS5: DT Support for SATA and SATA PHYVasanth Ananthan
This patch adds Device Nodes for SATA and SATA PHY device. Signed-off-by: Vasanth Ananthan <vasanth.a@samsung.com>
2014-03-11[HACK] drm/exynos: Disable regulatorsTushar Behera
Currently DRM driver doesn't handle deferred probe properly. If the regulators are not found during HDMI probe, it doesn't retry later. Since I2C controller is registered as a module driver, the PMIC client driver also gets registered later. In current build-order, DRM drivers are registered before the PMIC driver, hence causing this failure. The regulators are always-enabled and the regulator operations from driver is removed. Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: Add hdmi-en regulator for Arndale-Octa boardTushar Behera
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: Disable power domains for Exynos5420Tushar Behera
display_pd is affecting HDMI/Mixer functionality. Till appropriate handles are added in driver code, comment this pd definition. Additionally disable mau_pd for Audio functionality. Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: Add HDMI node for Arndale-Octa boardTushar Behera
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: update hdmiphy dt node for exynos5420Rahul Sharma
hdmiphy dt node needs a child node called 'phy-power-control' which represents the PMU register for power controlling the hdmiphy. hdmi driver dt node provides phy property which points to the hdmiphy dt node. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: update hdmiphy dt node for exynos5250Rahul Sharma
hdmiphy dt node needs a child node called 'phy-power-control' which represents the PMU register for power controlling the hdmiphy. hdmi driver dt node provides phy property which points to the hdmiphy dt node. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: Add hdmiphy power control pmu register to hdmi dt nodeRahul Sharma
Add hdmiphy power control node as a child to hdmi node. This node will be parsed by hdmi driver to map phy control pmu reg and control the phy power. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11drm/exynos: Fix hdmiphy i2c device probe failureTushar Behera
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11drm/exynos: fix ddc i2c device probe failureRahul Sharma
Exynos hdmi ddc is a I2C device and if we register hdmi ddc driver with id_table as NULL, cause failure in probing. id_table field should not be NULL for i2c_driver registeration. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11drm/exynos: add hdmiphy pmu bit control in hdmiphy driversRahul Sharma
Before hdmiphy operation like config, start etc, hdmiphy bit in PMU block should be enabled. Earlier this happens in hdmi driver through a dummy "hdmiphy" clock. Pmu bit control is added in both i2c and platform driver for exynos hdmiphy. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11drm/exynos: add hdmiphy platform driver for exynos5420Rahul Sharma
Exynos5420 hdmiphy device is a platform device, unlike predecessor SoCs where it used to be a I2C device. This support is added to the hdmiphy platform driver. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11drm/exynos: move hdmiphy code to hdmiphy i2c driverRahul Sharma
Exynos hdmiphy operations and configs are kept inside the hdmi driver. Hdmiphy related code is very tightly coupled with hdmi IP driver. This patch moves hdmiphy related code to hdmiphy I2C driver which supports hdmiphys which are accessible through i2c control bus for example in exynos4210, exynos4212 and exynos5250. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11drm/exynos: Add shutdown hook for HDMITushar Behera
Without this patch, HDMI monitor still displays data after shutdown. Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11drm/exynos: Force coherent_dma_mask if not already setTushar Behera
Some boards set the coherent_dma_mask as 64 bits (while working with LPAE). So we need to update coherent_dma_mask only if it is not already set. Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11drm/exynos: hdmi: Disable HPD supportTushar Behera
HPD support is not working properly on Arndale board. Till the issue is fixed, HPD support is disabled. Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: mm: Ignore data abort fault for Arndale-Octa boardTushar Behera
While booting Exynos5420 based Arndale-Octa board, we are getting a data abort as soon as we get the command prompt. This behaviour has become extremely reproducible (avg. 9 out of 10 iterations) since v3.14-rc1. Currently ignoring this fault so that the board becomes usable again. This is a work-around till the actual issue has been fixed. Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: EXYNOS: Set arch_sys_counter as default clocksourceTushar Behera
The Exynos 5250 includes an architected timer which is on core and very cheap to read. Enabling the architected timer can lead to a significant performance improvement for timer sensitive workloads such as TCP/IP. It turns out that both arch_sys_counter and mct-frc have a rating of 400. On bootup, arch_sys_counter is initialized first then the clocksource changes to mct-frc when that initialises later on. If the rating of mct-frc is reduced below 400, then arch_sys_counter becomes the default. Suggested-by: Steve Capper <steve.capper@linaro.org> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: EXYNOS: Fix hotplug when CPUs are booted in HYP modeInderpal Singh
In intial boot-up, u-boot commit "3d28a181aab5e... arndale5250: Boot in Hyp mode and enable architected timers" puts the CPUs in HYP mode. Hence, the CPUs need to be put in HYP mode when they are hot plugged out and plugged back in. This patch is almost same as above u-boot patch, it additionally takes care if the kernel is compiled with thumb-2 option. Signed-off-by: Giridhar Maruthy <giridhar.m@samsung.com> Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: EXYNOS: Use wfi macro in platform_do_lowpowerTushar Behera
As per commit b3377d186572 ("ARM: 7064/1: vexpress: Use wfi macro in platform_do_lowpower."), wfi macro should be used instead of the hardcoded WFI instruction. This fixes following oops with a kernel compiled in Thumb-2 mode. $ reboot reboot Disabling non-boot CPUs ... IRQ153 no longer affine to CPU1 CPU1: shutdown Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP THUMB2 Modules linked in: CPU: 1 Not tainted (3.9.0-rc1-00015-gce76372 #1) PC is at 0xc065858e LR is at exynos_cpu_die+0x53/0xc0 Tested on EXYNOS5250 based Arndale board. Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: Add I2S stub sound card for Arndale-Octa boardTushar Behera
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: Add I2S nodes to Exynos5420Sachin Kamat
Added I2S nodes to Exynos5420 DT file. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: Add ADMA node to Exynos5420Sachin Kamat
Added ADMA mode to Exynos5420 DT file. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: Add stub-audio codec for Arndale boardTushar Behera
Enable stub audio card. Useful to get HDMI audio when no codec is connected to the board. Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ASoC: SAMSUNG: Add I2S soundcard using stub codecTushar Behera
HDMI can be configured to source audio data from I2S bus. For boards on which there are no external audio chips, we still need to create a I2S-based soundcard with a dummy codec driver to enable I2S subsystem to pump data to the I2S bus, which can be used by HDMI module. Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ASoC: codec: i2s_stub: Add a dummy I2S based codec driverTushar Behera
HDMI (in Samsung EXYNOS based SoCs) can be configured to source audio data from I2S bus. For boards on which there are no external audio chips, we still need to create a I2S-based soundcard with a dummy codec driver to enable I2S subsystem to pump data to the I2S bus, which can be used by HDMI module. This patch adds a I2S stub audio codec driver which can be used to create a I2S soundcard when external chip is not there. Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ASoC: Samsung: Fix build error if LPAE is enabledTushar Behera
Without this, we get following error. sound/built-in.o: In function `dma_enqueue': sound/soc/samsung/dma.c:79: undefined reference to `__aeabi_uldivmod' sound/built-in.o: In function `iis_irq': sound/soc/samsung/idma.c:285: undefined reference to `__aeabi_uldivmod' Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11asix: Modify MAC address for subsequent devicesTushar Behera
In case there are multiple USB-Ethernet devices (through USB-Ethernet dongles), then all of them used to get the same MAC address passed from bootloader. Reported-by: Fathi Boudra <fathi.boudra@linaro.org> Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11asix: Add support to read MAC address from cmdlineTushar Behera
Inherited from arch/mips/rb532/devices.c Example: bootargs="mac=00:40:5c:26:0a:5b" Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
2014-03-11ARM: dts: Add gpio-button node for Arndale-OctaTushar Behera
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
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