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2015-01-23sunxi: video: Add support for Hitachi tx18d42vm LVDS LCD panelsHans de Goede
Add support for Hitachi tx18d42vm LVDS LCD panels, these panels have a lcd controller which needs to be initialized over SPI, once that is done they work like a regular LVDS panel. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Anatolij Gustschin <agust@denx.de> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22video: Add support for Hitachi tx18d42vm LVDS LCD panelsHans de Goede
Add support for Hitachi tx18d42vm LVDS LCD panels, these panels have a lcd controller which needs to be initialized over SPI, once that is done they work like a regular LVDS panel. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Anatolij Gustschin <agust@denx.de>
2015-01-22sunxi: Hookup OTG USB controller supportHans de Goede
Hookup OTG USB controller support and enable the otg controller + USB-keyb on various tablets. This allows tablet owners to interact with u-boot without needing to solder a serial console onto their tablet PCB. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: Add Gemei G9 (Allwinner A10/sun4i) tabletPriit Laes
Gemei G9 is an A10 based tablet, with 1G RAM, 16G NAND, 1024x768 IPS LCD display, stereo speakers, 1.3MP front camera and 5 MP rear camera, 8000mAh battery, GT901 2+1 touchscreen, Bosch BMA250 accelerometer and RTL8188CUS USB wifi. It also has MicroSD slot, miniHDMI, 1 x MicroUSB OTG port and 1 x MicroUSB host port and 3.5mm headphone jack. More details are available at: http://linux-sunxi.org/Gemei_G9 Signed-off-by: Priit Laes <plaes@plaes.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-01-22sunxi: video: Use frontend for dma on sun4i to fix memory bandwidth problemsHans de Goede
Testing has shown that on sun4i the display backend engine does not have deep enough fifo-s causing flickering / tearing in full-hd mode due to fifo underruns. On sun4i use the display frontend engine to do the dma from memory, as the frontend does have deep enough fifo-s. As added advantage of this is that it results in much better memory bandwidth as it reduces the amount of dram bank switches, for more details see: http://ssvb.github.io/2014/11/11/revisiting-fullhd-x11-desktop-performance-of-the-allwinner-a10.html Note that this changes the pipeline searched for in the simplefb node, we can get away with doing this now, since no kernel has yet shipped with simplefb dtb nodes, and I will make sure to get a simplefb node with the new pipeline into 3.19 before it ships. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: Add Marsboard A10 supportAleksei Mamlin
This patch add support for Marsboard A10 board. The Marsboard A10 is a A10 based development board with 1G RAM, 1G NAND, micro SD card slot, SATA 2.0 socket, 10/100 ethernet, mini HDMI port, 1 USB OTG port and 2 USB 2.0 ports. Board does not use the AXP209 pmic, it does not have a pmic at all. Board also have 2 expansion 70 pin headers. Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-01-22video: ssd2828: Allow using 'pclk' as the PLL clock sourceSiarhei Siamashka
Instead of using the internal 'tx_clk' clock source, it is also possible to use the pixel clock signal from the parallel LCD interface ('pclk') as the reference clock for PLL. The 'tx_clk' clock speed may be different on different boards/devices (the allowed range is 8MHz - 30MHz). Which is not very convenient, especially considering the need to know the exact 'tx_clk' clock speed. This clock speed may be difficult to identify without having device schematics and/or accurate documentation/sources every time. Using 'pclk' is free from all these problems. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Anatolij Gustschin <agust@denx.de> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-01-22sun6i: Add LCD display support for MSI Primo81 tabletSiarhei Siamashka
The MSI Primo81 tablet has B079XAN01/LP079X01 7.85" 768x1024 IPS MIPI display, connected to the parallel LCD interface via SSD2828 bridge chip. The panel has 18-bit color depth and needs dithering, in spite of having RGB data delivered from A31s to SSD2828 using 24-bit arrangement. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Anatolij Gustschin <agust@denx.de> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-01-22video: sunxi: Hook up SSD2828 with the sunxi video driverSiarhei Siamashka
Convert GPIO names from Kconfig strings into pin numbers for the 'ssd2828_config' struct. Add SSD2828 initialization between enabling the parallel LCD interface and turning on the backlight. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-01-22video: Add support for SSD2828 (parallel LCD to MIPI bridge)Siarhei Siamashka
SSD2828 can take pixel data coming from a parallel LCD interface and translate it on the fly into MIPI DSI interface for driving a MIPI compatible TFT display. SSD2828 is configured over SPI interface, which may or may not have MISO pin wired up on some hardware. So a write-only SPI mode also has to be supported. The SSD2828 support code is implemented as a utility function and needs to be called from real display drivers, which are responsible for driving parallel LCD hardware in front of the video pipeline. The usage instructions are provided as comments in the header file. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Anatolij Gustschin <agust@denx.de> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-01-22include: Add header file with MIPI DSI constants from linux 3.18Siarhei Siamashka
The file, originally named "include/video/mipi_display.h", is taken from linux 3.18 (commit b2776bf7149bddd1f4161f14f79520f17fc1d71d). It provides MIPI DSI constants for DCS commands, which are needed to implement support for SSD2828 in u-boot. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-01-22sunxi: axp221: Add ELDO[1-3] supportSiarhei Siamashka
And also add Kconfig option for selecting ELDO3 voltage. The reason for having this option is that the Android kernel sets ELDO3 to 1.2V when powering up LCD in the case if 'lcd_if' configuration variable is set to 6 (LCD_IF_EXT_DSI) in the FEX file. Most likely to supply power for a SSD2828 chip. However on the MSI Primo81 tablet, which is using this particular 'lcd_if = 6' setup for LCD, setting the ELDO3 voltage appears to be unnecessary and it works regardless. Having no schematics of this tablet, I can only guess that 1.2V is supplied to SSD2828 in some other way. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-01-22sunxi: Add mk802_a10s board / defconfigHans de Goede
The mk802_a10s re-uses is the "classic" mk802 case and functionality, but has an A10s SoC inside rather then the A10, it features 512M or 1G RAM, 4G nand, a mini-hdmi female connector, USB-A receptacle, mini-usb receptacle (OTG) and a sdio realtek wifi chip. Unlike the original mk802 it does have a pmic, the axp152. For more details see: http://linux-sunxi.org/Semitime_g2 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: Add mk802ii board / defconfigHans de Goede
The mk802ii is a revised version of the mk802 A10 based hdmi tv-stick, it features 1G RAM, 4G nand, a hdmi male connector, USB-A receptacle, 2 micro usb receptacles (OTG & power) and USB-wifi, and does come with an axp209 pmic. For more details see: http://linux-sunxi.org/Rikomagic_mk802ii Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: Add mk802 board / defconfigHans de Goede
The mk802 is the "classic" Allwinner A10 based hdmi tv-stick, it features 512M or 1G RAM, 4G nand, a mini-hdmi female connector, USB-A receptacle, mini-usb receptacle (OTG) and USB-wifi. Somewhat unique the mk802 does not use the AXP209 pmic, it does not have a pmic at all. For more details see: http://linux-sunxi.org/Rikomagic_mk802 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: Remove CONFIG_TARGET_FOO for sun4i, sun6i and sun8i boardsHans de Goede
CONFIG_TARGET_FOO is only used in board/sunxi/Makefile to select the dram config for sun5i and sun7i boards and in board/sunxi/gmac.c for some special handling of the bananapi/bananapro (both sun7i), iow it is not used at all on any sun4i, sun6i and sun8i boards so lets get rid of it there. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: Convert sun4i boards to use auto dram configurationHans de Goede
Currently we've separate detailed dram settings for all sun4i boards, this moves them over to using auto dram configuration so that we can get rid of all the per board dram_foo.c files. Tested-by: Hans de Goede <hdegoede@redhat.com> on a A10-OLinuXino-Lime, Chuwi_V7_CW0825 and ba10_tv_box Tested-by: Zoltan HERPAI <wigyori@uid0.hu> on a pcduino Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: Stop differentiating between 512M and 1G variants of the same boardHans de Goede
While working on adding more boards I noticed that we lack a config for the 512M cubieboard, and that some of the new boards which I want to add also have 512M and 1G variants, rather then adding 2 defconfig's for all of these, lets switch the exising boards which have both a 512M and 1024M variant over to the sun4i dram autoconfig code. This also drops the foo_RAMSIZE_defconfig variants of boards where we currently have 2 separate configs already. Note: 1) The newly introduced CONFIG_DRAM_EMR1 kconfig value is not used with a value other then its default for now, but we need this to be configurable to support some new boards with auto dram config. 2) We always set all CONFIG_DRAM_foo values in defconfigs, even if they match the defaults, this is done to make it more clear what values are used for a certain board. This has been tested on a Mele A1000, Mini-X and a Cubieboard, all 1G variants, the dram autoconfig code has also been tested on a 512M mk802 (a defconfig for the mk802 is added in a later patch). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: ba10_tv_box_defconfig: Fix USB not workingHans de Goede
PH12 is Vbus enable for Vbus2, not Vbus1. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: axp209: Disable interrupts when intializing the axp209Hans de Goede
We do not use the axp209 interrupt, and at least in my mini-x (which does not have a power button) the pwr-button pin and the irq pin are soldered together, so if the axp209 keeps it irq asserted too long it will see a 10s pwr-button press and hard power off the board, disabling the irqs fixes this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: mmc: Add support for sun9i (A80)Hans de Goede
The clocks on the A80 are hooked up slightly different, add support for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: mmc: Use a realistic timeout when sending a mmc commandHans de Goede
Wait 1 second for the sdcard to respond, rather then waiting for 0xfffff milliseconds. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sun9i: Add sun9i (A80) clock setup supportHans de Goede
Add initial sun9i (A80) clock setup support, enough to get the uart + mmc going. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sun9i: Add clock_sun9i.h with ccu register layout for sun9iHans de Goede
Add a headerfile with the sun9i ccu register layout. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sun9i: Add cpu_sun9i.h with iomem definesHans de Goede
Add a headerfile with all the base addresses from the sun9i blocks. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: Rename cpu.h to cpu_sun4i.hHans de Goede
sun4i - sun8i have (aprox.) the same iomem layout, but sun9i is quite different, so add a wrapper cpu.h which includes the right mach specific cpu_sun#i.h based on mach, like we already do with clock.h and dram.h . Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: Move clock_get_pllX / clock_set_pllX protos to mach specific headersHans de Goede
Which pll-s are available depends on the machine type, move the clock_get_pllX / clock_set_pllX prototypes to the clock_sun?i.h header files so that we only declare what is actually available. e.g. clock_get_pll5p() is not available on sun6i / sun8i, and with sun9i we get a completely different set of plls. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: Drop pll6 setting from clock_init_uartHans de Goede
As the comment says now that we have SPL support this is no longer necessary, as PLL6 is already setup with the exact same parameters by the SPL. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-22sunxi: display: Make lcd display clk phase configurableHans de Goede
While running some tests with an Olinuxino-A13-Micro + a 7" Olimex LCD module I noticed that the screen flickered. This is caused by the lcd display clk phase reg value being set to 0, where it should be 1 in this setup. This commit adds a Kconfig option for the lcd display clk phase, so that we can set it per board. This defaults to 1, because looking at all the fex files in sunxi-boards, that is by far the most used value. This commit updated the Ippo and MSI Primo73 tablet defconfigs to override the default of 1 with 0, as that is the correct value for those tablets, this keeps the register settings the same as before this commit. The Olinuxino-A13 defconfigs are not updated, changing the register setting for these boards from 0 to 1, this is intentional. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-21sunxi: Restore lowlevel_init usageHans de Goede
2 recent sunxi changes have removed the usage of lowlevel_init by moving some code around and then setting CONFIG_SKIP_LOWLEVEL_INIT. This is problematic for 2 reasons: 1) It does not just stop s_init from being called, it also stops cpu_init_cp15 from getting called, which is undesirable. 2) We want u-boot.bin to be usable standalone, without SPL, some people e.g. use an upstream u-boot.bin together with Allwinner's boot0 loader. So u-boot.bin must (re)initialize the gpios, timer, etc. This commit restores the lowlevel_init / s_init usage, while keeping the changes to no longer use the global-data (gd) struct in the SPL. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-01-20Merge git://git.denx.de/u-boot-arcTom Rini
2015-01-20Merge branch 'master' of git://git.denx.de/u-boot-mmcTom Rini
2015-01-20Merge branch 'master' of git://git.denx.de/u-boot-usbTom Rini
2015-01-20MAINTAINERS: add me as the maintainer of mpc837xerdbSinan Akman
Signed-off-by: Sinan Akman <sinan@writeme.com> Cc: Tom Rini <trini@ti.com>
2015-01-20Use generic board architecture for MPC837xERDBSinan Akman
Signed-off-by: Sinan Akman <sinan@writeme.com> Cc: kim.phillips@freescale.com
2015-01-20imx: ls102xa: Remove reference to gdataSimon Glass
The global_data pointer (gd) has already been set before board_init_f() is called. We should not assign it again. We should also not use gdata since it is going away. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-20imx: woodburn: Remove reference to gdataSimon Glass
The global_data pointer (gd) has already been set before board_init_f() is called. We should not assign it again. We should also not use gdata since it is going away. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stefano Babic <sbabic@denx.de>
2015-01-20imx: cm_fx6: Remove reference to gdataSimon Glass
The global_data pointer (gd) has already been set before board_init_f() is called. We should not assign it again. We should also not use gdata since it is going away. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Tested-by: Nikita Kiryanov <nikita@compulab.co.il> Acked-by: Nikita Kiryanov <nikita@compulab.co.il>
2015-01-20zynq: Remove reference to gdataSimon Glass
The global_data pointer (gd) has already been set before board_init_f() is called. We should not assign it again. We should also not use gdata since it is going away. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-19mmc: Skip changing bus width for MMC cards earlier than version 4.0Andrew Gabbasov
Wider bus widths (larger than default 1 bit) appeared in MMC standard version 4.0. So, for MMC cards of any earlier version trying to change the bus width (including ext_csd comparison) does not make any sense. It may work incorrectly and at least cause unnecessary timeouts. So, just skip the entire bus width related activity for earlier versions. Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
2015-01-19mmc: Avoid redundant switching to 1-bit bus width for MMC cardsAndrew Gabbasov
If all the commands switching an MMC card to 4- or 8-bit bus width fail, and the bus width for the controller and the driver is still set to default 1 bit, there is no need to send one more command to switch the card to 1-bit bus width. Also, if the card or host controller do not support wider bus widths, there is no need to send a switch command at all. However, if one of switch commands succeeds, but the subsequent ext_csd fields comparison fails, the card should be switched to some other bus width (next in the list for the loop), or to default 1-bit bus width as a last resort. That's why it would be incorrect to just remove the 1-bit bus width case from the list, it should still be processed in some cases. panto: Minor cosmetic edit removing superfluous parentheses. Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com> Tested-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
2015-01-19mmc: extend mmcinfo output to show partition write reliability settingsDiego Santa Cruz
This extends the mmcinfo hardware partition info output to show partitions with write reliability enabled with the "WRREL" string. If the partition does not have write reliability enabled the "WRREL" string is omitted; this is analogous to the ehhanced attribute. Example output: Device: OMAP SD/MMC Manufacturer ID: fe OEM: 14e Name: MMC16 Tran Speed: 52000000 Rd Block Len: 512 MMC version 4.41 High Capacity: Yes Capacity: 13.8 GiB Bus Width: 4-bit Erase Group Size: 8 MiB HC WP Group Size: 16 MiB User Capacity: 13.8 GiB ENH WRREL User Enhanced Start: 0 Bytes User Enhanced Size: 512 MiB Boot Capacity: 16 MiB ENH RPMB Capacity: 128 KiB ENH GP1 Capacity: 64 MiB ENH WRREL GP2 Capacity: 64 MiB ENH WRREL Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
2015-01-19mmc: extend the mmc hwpartition sub-command to change write reliabilityDiego Santa Cruz
This change extends the mmc hwpartition sub-command to change the per-partition write reliability settings. It also changes the syntax used for the enhanced user data area slightly to better accomodate the write reliability option. Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
2015-01-19mmc: extend the mmc hardware partitioning API with write reliabilityDiego Santa Cruz
The eMMC partition write reliability settings are to be set while partitioning a device, as per the eMMC spec, so changes to these attributes needs to be done in the hardware partitioning API. This commit adds such support. Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
2015-01-19mmc: add mmc hwpartition sub-command to do eMMC hardware partitioningDiego Santa Cruz
Adds the mmc hwpartition sub-command to perform eMMC hardware partitioning on an mmc device. The number of arguments can be large for a complex partitioning, but as the partitioning has to be done in one go it is difficult to make it simpler. Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
2015-01-19mmc: add API to do eMMC hardware partitioningDiego Santa Cruz
This adds an API to do hardware partitioning on eMMC devices. The new mmc_hwpart_config() function does the partitioning in one go. As the different attributes and partitioning options on eMMC may be interdependent validation has to be done based on the complete partitioning configuration. The function accepts three modes: - MMC_HWPART_CONF_CHECK: just validates that the configuration is valid. - MMC_HWPART_CONF_SET: validates and sets all the fields in EXT_CSD but without setting the "partitioning completed" bit, and thus is reversible. - MMC_HWPART_CONF_COMPLETE: does everything and is thus not reversible. Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
2015-01-19mmc: the ext_csd data may be used during init even if reading failedDiego Santa Cruz
The mmc_startup() function uses the ext_csd data even if reading it from the mmc device failed. This bug was introduced in commit bc897b1d4d86597311430dbe7b3e6c807c8c53e5. We now bail out if reading it fails, this should not be a problem as ext_csd was introduced in MMC 4.0 and this code is conditional on MMC >= 4.0. Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
2015-01-19mmc: eMMC partitioning data is not effective till partitioning completedDiego Santa Cruz
The eMMC spec says that partitioning is only effective after the PARTITION_SETTING_COMPLETED is set in EXT_CSD (and a power cycle was done, but that we cannot know). Thus the partition sizes and attributes should be ignored when that bit is not set, otherwise the various capacities are not coherent (e.g., the user data capacity will be that of the unpartitioned device while partition sizes would be non-zero). Prescence of non-zero partitioning data is nevertheless still used to activate the high-capacity size definitions (EXT_CSD_ERASE_GROUP_DEF) as it is necessary to set that to write any of the partitioning fields in EXT_CSD, so having partitioning data means someone previously activated that and we should keep it activated. Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
2015-01-19mmc: show the erase group size and HC WP group size in mmcinfo outputDiego Santa Cruz
This adds the erase group size and high-capacity WP group size to mmcinfo's output. The erase group size is necessary to properly align erase requests on eMMC. The high-capacity WP group size is necessary to properly align partitions on eMMC. Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
2015-01-19mmc: read the high capacity WP group size for eMMCDiego Santa Cruz
Read the eMMC high capacity write protect group size at mmc device initialization. This is useful to correctly partition an eMMC device, as partitions need to be aligned to this size. Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>