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* sunxi: spl: Fix DRAM info printingHans de Goede2016-07-021-1/+1
| | | | | | | | | | | The switch to simple_printf was causing the SPL dram info to show as: DRAM: u MiB This fixes this by switching from %lu to %d for printing the DRAM size. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* Revert "sunxi: Reserve ATF memory space on A64"Andre Przywara2016-05-251-9/+0
| | | | | | | | | | | The ARM Trusted Firmware (ATF) code now lives in SRAM on the Pine64/A64, so we can claim the whole of DRAM for OS use. This reverts commit 3ffe39ed2b66af71c7271d0cef2a248b5bf7dfdb. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: power: add AXP809 supportChen-Yu Tsai2016-05-251-5/+15
| | | | | | | | The A80 uses the AXP809 as its primary PMIC. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: power: axp818: Add support for switch SWChen-Yu Tsai2016-05-251-0/+1
| | | | | | | | | The AXP818 has a switchable output, SW. This is commonly used for controlling power to the LCD backlight. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Reserve ATF memory space on A64Alexander Graf2016-04-011-0/+9
| | | | | | | | | | On the A64 we usually boot with ATF running in EL3. ATF as it is available today resides in the first 16MB of RAM. So we should make sure we reserve that space in our memory maps. Signed-off-by: Alexander Graf <agraf@suse.de> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Add support for Allwinner A64 SoCsSiarhei Siamashka2016-04-011-6/+29
| | | | | | | | | | | | | | | The Allwinner A64 SoC is used in the Pine64. This patch adds all bits necessary to compile U-Boot for it running in AArch64 mode. Unfortunately SPL is not ready yet due to legal problems, so we need to boot using the binary boot0 for now. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> [agraf: remove SPL code, move to AArch64] Signed-off-by: Alexander Graf <agraf@suse.de> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* power: axp818: Add support for FLDOsChen-Yu Tsai2016-03-311-0/+6
| | | | | | | | | The FLDOs on AXP818 PMIC normally provide power to CPUS and USB HSIC PHY on the A83T/H8. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Select CONFIG_OF_BOARD_SETUP from arch/arm/KconfigHans de Goede2016-03-231-3/+6
| | | | | | | | | | | | | Always select OF_BOARD_SETUP on sunxi, rather then having it in almost all our defconfigs. This also fixes it missing from some recently added defconfigs. This commit also modifies our ft_board_setup() to not cause warnings when CONFIG_VIDEO_DT_SIMPLEFB is not set, since we will now always build it. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: Turn satapwr on from board_initHans de Goede2016-03-231-0/+4
| | | | | | | | | | | | | | | | | | There are 2 reasons for doing this: 1) The main reason for doing this is to move it outside of board/sunxi/ahci.c, so that it can be used on boards which use a usb<->sata chip too; 2) While doing this I realized that doing it from board_init also meant doing it much earlier. Some printf get_timer(0) calls show that the time between board_init() and scsi_init() is more then 600 ms, so we can drop the mdelay(500) While at it also drop the printf("SUNXI SCSI INIT\n") AHCI init is noisy enough by itself. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: Fix gmac not working due to cpu_eth_init no longer being calledHans de Goede2016-03-231-0/+5
| | | | | | | | | | | | | | | | | | | | cpu_eth_init is no longer called for dm enabled eth drivers, this was causing the sunxi gmac eth controller to no longer work in u-boot. This commit fixes this by calling the clock, reset and pinmux setup function from s_init() and enabling the phy power pin (if any) from board_init(). The enabling of phy power cannot be done from s_init because it uses dm and dm is not ready yet at this point. Note that the mdelay is dropped as the phy gets enabled much earlier now, so it is no longer needed. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Tested-by: Karsten Merker <merker@debian.org> Tested-by: Michael Haas <haas@computerlinguist.org>
* dm: block: Rename device number member dev to devnumSimon Glass2016-03-141-2/+2
| | | | | | | | | This is a device number, and we want to use 'dev' to mean a driver model device. Rename the member. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Stephen Warren <swarren@nvidia.com>
* sunxi: power: add support for sy8106a driverJelle van der Waa2016-02-231-0/+5
| | | | | | | | | | | | | | | | SY8106A is a PMIC which is used on the Allwinner H3 Orange Pi Pc and Plus board. The VOUT1_SEL register is implemented to set the default V-CPU voltage to 1200 mV. This driver is required to ensure the SY8106A V-CPU voltage is set to 1200 mV after a software reset. On cold boot the default SY8106A output voltage is selected to be 1200 mV by a pair of resistors on the Orange Pi PC and Plus. Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl> Tested-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: power: axp818: Enable support for ALDOsChen-Yu Tsai2016-01-261-5/+3
| | | | | | | | | | | | Previously, AXP818 ALDO support was partially added to Kconfig, but never enabled in the board file, nor properly set or configured in Kconfig. The boards continue to work because the AXP818 is designed to pair with the A83T/H8, and the default voltages match the reference design's requirements. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* power: axp: merge separate DLDO functions into 1Chen-Yu Tsai2016-01-261-4/+4
| | | | | | | | | | | Instead of one function for each DLDO regulator, make 1 function that takes an extra "index". Since the control bits for the DLDO regulators are contiguous, this makes the function very simple. This removes a lot of duplicate code. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Add support for the I2C controller which is part of the PRCMJelle van der Waa2016-01-211-0/+6
| | | | | | | | | | | Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl> [hdegoede@redhat.com: Minor cleanups] Signed-off-by: Hans de Goede <hdegoede@redhat.com> applied with fixing 2 checkpatch warnings: WARNING: please, no space before tabs Signed-off-by: Heiko Schocher <hs@denx.de>
* sunxi: power: enabled support for axp818vishnupatekar2015-12-101-5/+8
| | | | | | | | | Enabled support for AXP818 in SPL and u-boot. DCDC1, DCDC2, DCDC3 and DCSC5 are enabled. Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: power: Unify axp pmic function namesHans de Goede2015-10-201-38/+32
| | | | | | | | | Stop prefixing the axp functions for setting voltages, etc. with the model number, there ever is only one pmic driver built into u-boot, this allows simplifying the callers. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: power: Make all voltages configurable through KconfigHans de Goede2015-10-201-24/+24
| | | | | | | | | | | | On boards with axp221/223 pmic-s we already allow configuring most voltages. Make the Kconfig options for these also apply to boards with axp152 / axp209 pmic-s and extend them to configure all voltages. The Kconfig defaults are chosen so that this commit does not introduce any functional changes. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: retrieve FEL-provided values to environment variablesBernhard Nortmann2015-09-291-0/+35
| | | | | | | | | | | | | | | | | | | This patch extends the misc_init_r() function on sunxi boards to test for the presence of a suitable "sunxi" SPL header. If found, and the loader ("fel" utility) provided a non-zero value for the boot.scr address, then the corresponding environment variable fel_scriptaddr gets set. misc_init_r() also sets (or clears) the "fel_booted" variable depending on the active boot device, using the same logic as spl_boot_device(). The goal is to provide sufficient information (within the U-Boot environment) to make intelligent decisions on how to continue the boot process, allowing specific customizations for the "FEL boot" case. Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi_nand_spl: Rename SPL_NAND_SUNXI to NAND_SUNXIHans de Goede2015-08-311-1/+1
| | | | | | | | | | | | | | | We eventually want to add full nand support, since it makes no sense to build SPL with nand support and u-boot without, or the other way around, a single option will suffice. Renaming the Kconfig option now makes things easier when we add full nand support in the future. The "obj-$(CONFIG_NAND_SUNXI) += sunxi_nand_spl.o" is moved to an "ifdef CONFIG_SPL_BUILD" block in the Makefile. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi_nand_spl: Add support for sun4i and sun5i SoCsHans de Goede2015-08-311-3/+9
| | | | | | | | | | | | Other then having a few less chip-select lines the nand controller on sun4i, sun5i and sun7i is identical. Note this patch also muxes GPC7 to the NAND on sun7i where as before it was not muxed this way. GPC7 is a standard NAND pin, so it should always be muxed to the NAND when in use. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi_nand_spl: Make sure the DMA controller is enabledHans de Goede2015-08-311-0/+6
| | | | | | | | We use DMA for nand data transfers in the SPL, so make sure the DMA controller is enabled. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi_nand_spl: Use SYS_NAND_SELF_INIT and only do nand init when necessaryHans de Goede2015-08-311-5/+7
| | | | | | | | Use SYS_NAND_SELF_INIT and only setup the pinmux and clocks when we are actually using the nand. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp221: Allow specifying dcdc2 voltage via KconfigHans de Goede2015-08-311-1/+1
| | | | | | | | Allow specifying the axp221 dcdc2 voltage via Kconfig, this is necessary because on some boards the 1.2V default does not work reliable. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: nand: Add pinmux and clock settings for NAND supportKarol Gugala2015-08-081-0/+27
| | | | | | | | | | To enable NAND flash in sunxi SPL, pins 0-6, 8-22 and 24 on port C are configured. Signed-off-by: Karol Gugala <kgugala@antmicro.com> Signed-off-by: Piotr Zierhoffer <pzierhoffer@antmicro.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: musb: Move musb config and platdata to the sunxi-musb glueHans de Goede2015-07-251-26/+2
| | | | | | | | | Move the musb config and platdata to the sunxi-musb glue, which is where it really belongs. This is preparation patch for adding device-model support for the sunxi-musb-host code. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: spl: Remove redundant check from `board_mmc_init` for signatureDaniel Kochmański2015-07-241-9/+11
| | | | | | | | | | | | | Remove the boot signature check from board_mmc_init() in spl mode, as it is already done in spl_boot_device() in this case, and update the comments to reflect this. Signed-off-by: Daniel Kochmański <dkochmanski@turtle-solutions.eu> CC: Roy Spliet <r.spliet@ultimaker.com> Cc: Ian Campbell <ijc@hellion.org.uk> [hdegoede@redhat.com: Disable the check only for SPL instead of always] Acked-by: Hans De Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Create helper function veryfing valid boot signature on MMCDaniel Kochmański2015-07-241-6/+2
| | | | | | | | | | | | | | | This patch extracts checking for valid SD card "eGON.BT0" signature from `board_mmc_init` into function `sunxi_mmc_has_egon_boot_signature`. Buffer for mmc sector is allocated and freed at runtime. `panic` is triggered on malloc failure. Signed-off-by: Daniel Kochmański <dkochmanski@turtle-solutions.eu> CC: Roy Spliet <r.spliet@ultimaker.com> Cc: Ian Campbell <ijc@hellion.org.uk> [hdegoede@redhat.com: Small bugfix to make it work for devs other then mmc0] Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* Revert "sunxi/nand: Add support to the SPL for loading u-boot from internal ↵Ian Campbell2015-06-281-18/+0
| | | | | | | | | | | | | | NAND memory" This reverts commit f76eba38b3eda905ff3bdc18dd1240d3dcbc6e5a. This patch did not have a full and proper copyright/S-o-b chain. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Conflicts: include/configs/sun6i.h include/configs/sun8i.h
* sunxi/nand: Add support to the SPL for loading u-boot from internal NAND memoryDaniel Kochmański2015-05-291-0/+18
| | | | | | | | | | | This commit adds support to the sunxi SPL to load u-boot from the internal NAND. Note this only adds support to access the boot partitions to load u-boot, full NAND support to load the kernel, etc. from the nand data partition will come later. Signed-off-by: Roy Spliet <r.spliet@ultimaker.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sun9i: Basic sun9i (A80) supportHans de Goede2015-05-291-1/+2
| | | | | | | Add initial sun9i (A80) support, only uart + mmc are supported for now. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: VBUS detection function fixup in g_dnl_board_usb_cable_connectedPaul Kocialkowski2015-05-191-1/+1
| | | | | | | | | | sunxi_usbc_vbus_detect was renamed to sunxi_usb_phy_vbus_detect but g_dnl_board_usb_cable_connected was still using the old name, breaking the build when USB gadget is enabled. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Pass serial number through ATAGPaul Kocialkowski2015-05-191-0/+20
| | | | | | Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: usb: Do not call phy_probe from hcd codeHans de Goede2015-05-041-0/+4
| | | | | | | | | | | | | | | | | | | The 2/3 usb-phys on the sunxi SoCs are really a single separate functional block, and are modelled as such in devicetree. So once we've moved all the sunxi usb code to the driver-model then phy_probe will be called once for the entire block from the driver-model enumeration code. Move to this now as this also avoids problems with phy_probe being called multiple times once we introduce ohci support. This also allows us to get rid of the sunxi_usb_phy_enabled_count variable as phy_probe now is guaranteed to be called only once. Since we're effectively rewriting the probe / remove functions, move them to the end of the file while we are at it, as that is the most logical place for them. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: usb: Rename the usbc.? files to usb_phy.?Hans de Goede2015-05-041-1/+1
| | | | | | | | The usbc.? files now only contain usb-phy related code, rename them to make this clear. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: usb: Rename sunxi_usbc_foo functions to sunxi_usb_phy_barHans de Goede2015-05-041-0/+2
| | | | | | | | | | | Rename the sunxi_usbc_foo functions to sunxi_usb_phy_bar to make it clear that these are usb-phy functions. Also change the verbs & nouns in the suffix to match the verbs & nouns used in the Linux kernels generic phy framework. This patch purely renames things, it contains no functional changes. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp: Move axp gpio code to a separate axpi-gpio driverHans de Goede2015-05-041-1/+5
| | | | | | | | | | | | | | | | | | | | Move the axp-gpio code out of the drivers/power/axp*.c code, and into a new separate axpi-gpio driver. This change drops supports for the gpio3 pin on the axp209, as that requires special handling, and no boards are using it. Besides cleaning things up by moving the code to a separate driver, as a bonus this change also adds support for the (non vusb) gpio pins on the axp221 and the gpio pins on the axp152. The new axp-gpio driver gets its own Kconfig option, and is only enabled on boards which need it. Besides that it only gets enabled in the regular u-boot build and not for the SPL as we never need it in the SPL. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: soft-i2c: Fix gpio handling to work with the driver-modelHans de Goede2015-05-041-6/+38
| | | | | | | | | | | | | i2c_init_board() gets called before the driver-model (gpio) code is initialized, so move the setup of the soft-i2c pins out of i2c_init_board() and into board_init(), at which time the driver-model setup has been done. Also add proper error checking and properly request the gpios as that is mandatory with the driver-model. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: Complete i2c support for each supported platformPaul Kocialkowski2015-04-151-2/+75
| | | | | | | | | | | Sunxi platforms come with at least 3 TWI (I2C) controllers and some platforms even have up to 5. This adds support for every controller on each supported platform, which is especially useful when using expansion ports on single-board- computers. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Serial number support, obtained from SID bitsPaul Kocialkowski2015-04-151-11/+22
| | | | | | Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Complete mmc pin mux for each supported platform, configured with KconfigPaul Kocialkowski2015-04-151-5/+126
| | | | | | | | | | | | | Sunxi platforms have different possible mmc pin mux setups (except for mmc0), which are different across platforms. This lets users configure which is used through the CONFIG_MMC*_PINS Kconfig options. This is especially relevant when a second (in addition to mmc0) port is used and CONFIG_MMC_SUNXI_SLOT_EXTRA is enabled. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: GPIO pin mux hardware-feature-specific function index definesPaul Kocialkowski2015-04-151-6/+6
| | | | | | | | | | | Each hardware feature exposed through the GPIO pin mux is usually using the same function index (for a given port), so there is no need to define one value per pin: one value per hardware feature per port is sufficient, avoids duplication and makes everything easier to understand. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: USB download gadget cable detectionPaul Kocialkowski2015-04-151-0/+7
| | | | | | Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: use CONFIG_SYS_CLK_FREQ to set cpu clockIain Paton2015-03-291-1/+1
| | | | | | | | | | | | | | | make the CPU clock selectable via Kconfig this removes the sunxi specific CONFIG_CLK_FULL_SPEED defined in each soc header and replaces it's use in board/sunxi/board.c with CONFIG_SYS_CLK_FREQ from Kconfig which allows us to configure board specific frequency on boot Signed-off-by: Iain Paton <ipaton0@gmail.com> [hdegoede@redhat.com s/CONFIG_SYS_CLK_FREQ/CONFIG_TIMER_CLK_FREQ/ for the arch-timer clk speed on sun7i to fix mis-compile on sun7i] Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: video: Add support for LCD panels which need to be configured via i2cHans de Goede2015-02-201-0/+10
| | | | | | | | This commits adds support for configuring a a bitbang i2c controller, which is used on some boards to configure the LCD panel (via i2c). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: Hookup OTG USB controller supportHans de Goede2015-01-221-0/+25
| | | | | | | | | | | 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>
* sunxi: axp221: Add ELDO[1-3] supportSiarhei Siamashka2015-01-221-0/+1
| | | | | | | | | | | | | | | | | | 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>
* sunxi: axp221: Disable dcdc4 on sun8i (A23)Hans de Goede2015-01-141-4/+8
| | | | | | | | | | dcdc4 is not used on sun8i, disable it. While at it also add comments to the other fixed voltages to document what they are used for. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp221: Explicitly turn off unused voltagesHans de Goede2015-01-141-10/+0
| | | | | | | | | Explicitly turn off unused voltages, rather then leaving them as is. Likewise explictly enabled the dcdc convertors, rather then assuming they are already enabled at boot. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp221: Make dcdc1 voltage configurableHans de Goede2015-01-141-1/+1
| | | | | | | | | | The dcdc1 voltage is typically used as generic 3.3V IO voltage for things like GPIO-s, sdcard interfaces, etc. On most boards this is undervolted to 3.0V to safe battery, but not on all, make it configurable so that we can use the same settings as the original firmware on all boards. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
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