summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2017-05-18imx: thermal: update imx6 thermal driver according new equationPeng Fan
>From IC guys: " After a thorough accuracy study of the Temp sense circuit, we found that with our current equation, an average part can read 7 degrees lower than a known forced temperature. We also found out that the standard variance was around 2C; which is the tightest distribution that we could create. We need to change the temp sense equation to center the average part around the target temperature. " New equation: Tmeas = (Nmeas - n1) / slope + t1 + offset n1= fused room count t1= 25 offset=3.580661 slope= 0.4148468 – 0.0015423*n1 According the new equation, update the thermal driver. c1 and c2 changed to u64 type and update comments. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
2017-05-18imx-common: timer: clean upPeng Fan
Drop the unneeded code. lib/time.c use timebase_l/h. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Reviewed-by: Stefano Babic <sbabic@denx.de>
2017-05-18mx25pdk: Add fuse API supportFabio Estevam
Select CONFIG_FSL_IIM and CONFIG_CMD_FUSE so that the fuse API can be used. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-05-18net: fec_mxc: specify the registered eth index by dev_idAndy Duan
Specify the registered eth index by dev_id. Signed-off-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Joe Hershberger <joe.hershberger@ni.com>
2017-05-18net: fec_mxc: avoid transfer dev_id -1 to get mac address from fuseAndy Duan
Avoid transfer parameter dev_id value with "-1" to .fec_get_hwaddr(), it should transfer fec->dev_id to get mac address from fuse. Signed-off-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Stefano Babic <sbabic@denx.de>
2017-05-18net: fec: do not access reserved register for i.MX6ULLPeng Fan
The MIB RAM and FIFO receive start register does not exist on i.MX6ULL. Accessing these register will cause enet not work well or cause system report fault. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Joe Hershberger <joe.hershberger@ni.com>
2017-05-17Merge git://git.denx.de/u-boot-uniphierTom Rini
- Add workaround code to make LD20 SoC boot from ARM Trusted Firmware - Sync DT with Linux to fix DTC warnings - Add new SoC support code - Misc fix, updates
2017-05-17Merge git://git.denx.de/u-boot-x86Tom Rini
2017-05-17sunxi: Move maintainership for Pine64Andre Przywara
After speaking to Hans at FOSDEM, he is fine with transferring the maintainership of the Pine64 boards over to me. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-17sunxi: update Pine64 READMEAndre Przywara
With the DRAM init code and the SPL's ability to load the ATF binary as well, we can now officially get rid of the boot0 boot method, which involed a closed-source proprietary blob to be used. Rework the Pine64 README file to document how to build the firmware. Also since these instructions now cover more boards, rename the file to README.sunxi64 to reflect this. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-17sunxi: use SPL header DT name for FIT board matchingAndre Przywara
Now that we can store a DT name in the SPL header, use this string (if available) when finding the right DT blob to load for U-Boot proper. This allows a generic U-Boot (proper) image to be combined with a bunch of supported DTs, with just the SPL (possibly only that string) to be different. Eventually this string can be written after the build process by some firmware update tool. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-17sunxi: Store the device tree name in the SPL headerSiarhei Siamashka
This patch updates the mksunxiboot tool to optionally add the default device tree name string to the SPL header. This information can be used by the firmware upgrade tools to protect users from harming themselves by trying to upgrade to an incompatible bootloader. The primary use case here is a non-removable bootable media (such as NAND, eMMC or SPI flash), which already may have a properly working, but a little bit outdated bootloader installed. For example, the user may download or build a new U-Boot image for "Cubieboard", and then attemept to install it on a "Cubieboard2" hardware by mistake as a replacement for the already existing bootloader. If this happens, the flash programming tool can identify this problem and warn the user. The size of the SPL header is also increased from 64 bytes to 96 bytes to provide enough space for the device tree name string. [Andre: split patch to remove OF_LIST hash feature] Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2017-05-17sunxi: enable automatic FIT build for 64-bit SoCsAndre Przywara
The Allwinner SoCs with 64-bit cores use an ARM Trusted Firmware binary, which needs to be loaded alongside U-Boot proper. Set the respective Kconfig options to let them select this feature and also automatically build the FIT image. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> [Rename Kconfig path to arch/arm/mach-sunxi/Kconfig] Signed-off-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-17sunxi: defconfig: add supported DT list for Pine64Andre Przywara
When a board uses a FIT image to load U-Boot proper, it requires a list of supported device trees to be supplied in CONFIG_OF_LIST, from which it chooses the right one at runtime. For boards with just one possible DT (like the OrangePi PC2) this defaults to CONFIG_DEFAULT_DEVICE_TREE, but for the Pine64 with its two possible models we provide all compatible DTs in this config symbol. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@openedev.com>
2017-05-17sunxi: 64-bit SoCs: introduce FIT generator scriptAndre Przywara
Now that the Makefile can call a generator script to build a more advanced FIT image, let's use this feature to address the needs of Allwinner boards with 64-bit SoCs (A64 and H5). The (DTB stripped) U-Boot binary and the ATF are static, but we allow an arbitrary number of supported device trees to be passed. The script enters both a DT entry in the /images node and the respective subnode in /configurations to support all listed DTBs. The location of the bl31.bin image from the ARM Trusted Firmware build can either by specified via the BL31 environment variable. If this is not set, the script looks for bl31.bin in U-Boot's build directory (which could be a symlink as well). Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-17Makefile: add rules to generate SPL FIT imagesAndre Przywara
Some platforms require more complex U-Boot images than we can easily generate via the mkimage command line, for instance to load additional image files. Introduce a CONFIG_SPL_FIT_SOURCE and CONFIG_SPL_FIT_GENERATOR symbol, which can either hold an .its source file describing the image layout, or, in the second case, a generator tool (script) to create such a source file. This script gets passed the list of device tree files from the CONFIG_OF_LIST variable. A platform or board can define either of those in their defconfig file to allow an easy building of such an image. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-17sunxi: SPL: add FIT config selector for Pine64 boardsAndre Przywara
For a board or platform to support FIT loading in the SPL, it has to provide a board_fit_config_name_match() routine, which helps to select one of possibly multiple DTBs contained in a FIT image. Provide a simple function which chooses the DT name U-Boot was configured with. If the DT name is one of the two Pine64 versions, determine the exact model by checking the DRAM size. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@openedev.com>
2017-05-17sunxi: SPL: store RAM size in gdAndre Przywara
The sunxi SPL was holding the detected RAM size in some local variable only, so it wasn't accessible for other functions. Store the value in gd->ram_size instead, so it can be used later on. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-17sunxi: A64: move SPL stack to end of SRAM A2Andre Przywara
The SPL stack is usually located at the end of SRAM A1, where it grows towards the end of the SPL. For the really big AArch64 binaries the stack overwrites code pretty soon, so move the SPL stack to the end of SRAM A2, which is unused at this time. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Jagan Teki <jagan@openedev.com>
2017-05-17armv8: fsl: move ccn504 code into FSL MakefileAndre Przywara
The generic ARMv8 assembly code contains routines for setting up a CCN interconnect, though the Freescale SoCs are the only user. Link this code only for Freescale targets, this saves some precious bytes in the chronically tight SPL. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2017-05-17armv8: SPL: only compile GIC code if neededAndre Przywara
Not every SoC needs to set up the GIC interrupt controller, so link think code only when the respective config option is set. This shaves off some bytes from the SPL code size. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-17tools: mksunxiboot: allow larger SPL binariesAndre Przywara
mksunxiboot limits the size of the resulting SPL binaries to pretty conservative values to cover all SoCs and all boot media (NAND). It turns out that we have limit checks in place in the build process, so mksunxiboot can be relaxed and allow packaging binaries up to the actual 32KB the mask boot ROM actually imposes. This allows to have a bigger SPL, which is crucial for AArch64 builds. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-17Kconfig: fix SPL_FIT dependencyAndre Przywara
SPL_FIT obviously requires libfdt in SPL, so let Kconfig express that by selecting SPL_OF_LIBFDT. Also make the actual options that users want (SPL signature and SPL FIT loading) visible in the menu and let them select the SPL_FIT as a requirement. Also remove the now redundant SPL_OF_LIBFDT from those Kconfigs that had it in for the SPL FIT loading feature. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> [Remove change from configs/evb-rk3399_defconfig] Signed-off-by: Jagan Teki <jagan@openedev.com>
2017-05-17SPL: FIT: allow loading multiple imagesAndre Przywara
So far we were not using the FIT image format to its full potential: The SPL FIT loader was just loading the first image from the /images node plus one of the listed DTBs. Now with the refactored loader code it's easy to load an arbitrary number of images in addition to the two mentioned above. As described in the FIT image source file format description, iterate over all images listed at the "loadables" property in the configuration node and load every image at its desired location. This allows to load any kind of images: - firmware images to execute before U-Boot proper (for instance ARM Trusted Firmware (ATF)) - firmware images for management processors (SCP, arisc, ...) - firmware images for devices like WiFi controllers - bit files for FPGAs - additional configuration data - kernels and/or ramdisks The actual usage of this feature would be platform and/or board specific. Also update the FIT documentation to mention the new SPL feature and provide an example .its file to demonstrate its features. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Lokesh Vutla <lokeshvuta@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-17SPL: FIT: factor out spl_load_fit_image()Andre Przywara
At the moment we load two images from a FIT image: the actual U-Boot image and the .dtb file. Both times we have very similar code, that deals with alignment requirements the media we load from imposes upon us. Factor out this code into a new function, which we just call twice. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Jagan Teki <jagan@openedev.com>
2017-05-17SPL: FIT: improve error handlingAndre Przywara
At the moment we ignore any errors due to missing FIT properties, instead go ahead and calculate our addresses with the -1 return value. Fix this and bail out if any of the mandatory properties are missing. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Jagan Teki <jagan@openedev.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-05-17SPL: FIT: rework U-Boot image loadingAndre Przywara
Currently the SPL FIT loader always looks only for the first image in the /images node a FIT tree, which it loads and later executes. Generalize this by looking for a "firmware" property in the matched configuration subnode, or, if that does not exist, for the first string in the "loadables" property. Then using the string in that property, load the image of that name from the /images node. This still loads only one image at the moment, but refactors the code to allow extending this in a following patch. To simplify later re-usage, we also generalize the spl_fit_select_index() function to not return the image location, but just the node offset. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Lokesh Vutla <lokeshvuta@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Jagan Teki <jagan@openedev.com>
2017-05-17SPL: FIT: refactor FDT loadingAndre Przywara
Currently the SPL FIT loader uses the spl_fit_select_fdt() function to find the offset to the right DTB within the FIT image. For this it iterates over all subnodes of the /configuration node in the FIT tree and compares all "description" strings therein using a board specific matching function. If that finds a match, it uses the string in the "fdt" property of that subnode to locate the matching subnode in the /images node, which points to the DTB data. Now this works very well, but is quite specific to cover this particular use case. To open up the door for a more generic usage, let's split this function into: 1) a function that just returns the node offset for the matching configuration node (spl_fit_find_config_node()) 2) a function that returns the image data any given property in a given configuration node points to, additionally using a given index into a possbile list of strings (spl_fit_select_index()) This allows us to replace the specific function above by asking for the image the _first string of the "fdt" property_ in the matching configuration subnode points to. This patch introduces no functional changes, it just refactors the code to allow reusing it later. (diff is overly clever here and produces a hard-to-read patch, so I recommend to throw a look at the result instead). Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Lokesh Vutla <lokeshvuta@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Jagan Teki <jagan@openedev.com>
2017-05-17ARM: uniphier: add more init code for PXs3Masahiro Yamada
Add the boot device table and reset deassertion for eMMC. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-17ARM: uniphier: move kernel physical base to 0x82080000Masahiro Yamada
Reserve enough space below the kernel base. The assumed address map is: 80000000 - 80ffffff : for IPP 81000000 - 81ffffff : for ARM secure 82000000 - : for Linux Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-17ARM: dts: uniphier: sync DT with LinuxMasahiro Yamada
Fix the following DTC warnings: Warning (simple_bus_reg): Node /soc/system-bus@58c00000/support_card@1,1f00000/ethernet@00000000 simple-bus unit address format error, expected "0" Warning (simple_bus_reg): Node /soc/system-bus@58c00000/support_card@1,1f00000/uart@000b0000 simple-bus unit address format error, expected "b0000" Warning (simple_bus_reg): Node /soc/smpctrl@59800000 simple-bus unit address format error, expected "59801000" Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-17ARM: uniphier: add weird workaround code for LD20Masahiro Yamada
When booting from ARM Trusted Firmware, U-Boot runs in EL1-NS. The boot flow is as follows: BL1 -> BL2 -> BL31 -> BL33 (i.e. U-Boot) This boot sequence works fine for LD11 SoC (Cortex-A53), but LD20 SoC (Cortex-A72) hangs in U-Boot. The solution I found is to read sctlr_el1 and write back the value as-is. This should be no effect, but surprisingly fixes the problem for LD20 to boot. I do not know why. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-17ARM: uniphier: add usbupdate commandMasahiro Yamada
This script command will be useful to update boot images in the USB storage. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-17ARM: uniphier: fix MODEL field of REVISION registerMasahiro Yamada
The MODEL field is 3 bit wide. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-17x86: minnowmax: Remove incorrect pad-offset of several pinsBin Meng
Remove 'pad-offset' of soc_gpio_s5_0, soc_gpio_s5_1, soc_gpio_s5_2, pin_usb_host_en0 and pin_usb_host_en1. These offsets are actually wrong. Correct value should be added by 0x2000, but since they are supposed to be 'mode-gpio', 'pad-offset' is not needed at all. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-17x86: ich6_gpio: Add use-lvl-write-cache for I/O access modeBin Meng
Add a device-tree property use-lvl-write-cache that will cause writes to lvl to be cached instead of read from lvl before each write. This is required on some platforms that have the register implemented as dual read/write (such as Baytrail). Prior to this fix the blue USB port on the Minnowboard Max was unusable since USB_HOST_EN0 was set high then immediately set low when USB_HOST_EN1 was written. This also resolves the 'gpio clear | set' command warning like: "Warning: value of pin is still 0" Signed-off-by: George McCollister <george.mccollister@gmail.com> <rebased on latest origin/master, fixed all baytrail boards> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-17spi: ich: Configure SPI BIOS parameters for Linux upon U-Boot exitStefan Roese
This patch adds a remove function to the Intel ICH SPI driver, that will be called upon U-Boot exit, directly before the OS (Linux) is started. This function takes care of configuring the BIOS registers in the SPI controller (similar to what a "standard" BIOS or coreboot does), so that the Linux MTD device driver is able to correctly read/write to the SPI NOR chip. Without this, the chip is not detected at all. Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Cc: Jagan Teki <jteki@openedev.com>
2017-05-17x86: bootm: Add dm_remove_devices_flags() call to bootm_announce_and_cleanup()Stefan Roese
This patch adds a call to dm_remove_devices_flags() to bootm_announce_and_cleanup() so that drivers that have one of the removal flags set (e.g. DM_FLAG_ACTIVE_DMA_REMOVE) in their driver struct, may do some last-stage cleanup before the OS is started. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-17dm: core: Add DM_FLAG_OS_PREPARE flagStefan Roese
This new flag can be added to DM device drivers, which need to do some final configuration before U-Boot exits and the OS (e.g. Linux) is started. The remove functions of those drivers will get called at this stage to do these last-stage configuration steps. Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com>
2017-05-17serial: serial-uclass: Use force parameter in stdio_deregister_dev()Stefan Roese
On my x86 platform I've noticed, that calling dm_uninit() or the new function dm_remove_devices_flags() does not remove the desired device at all. Debugging showed, that the serial uclass returns -EPERM in serial_pre_remove(). This patch sets the force parameter when calling stdio_deregister_dev() resulting in a removal of the device. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-17x86: Convert MMC to driver modelSimon Glass
Convert the pci_mmc driver over to driver model and migrate all x86 boards that use it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
2017-05-17x86: Document ACPI S3 supportBin Meng
Now that we have ACPI S3 support on Intel MinnowMax board, document some generic information of S3 and how to test it. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Stefan Roese <sr@denx.de>
2017-05-17x86: minnowmax: Enable ACPI S3 resumeBin Meng
This turns on ACPI S3 resume for minnowmax board. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Stefan Roese <sr@denx.de>
2017-05-17x86: acpi: Fix Windows S3 resume failureBin Meng
U-Boot sets up the real mode interrupt handler stubs starting from address 0x1000. In most cases, the first 640K (0x00000 - 0x9ffff) system memory is reported as system RAM in E820 table to the OS. (see install_e820_map() implementation for each platform). So OS can use these memories whatever it wants. If U-Boot is in an S3 resume path, care must be taken not to corrupt these memorie otherwise OS data gets lost. Testing shows that, on Microsoft Windows 10 on Intel Baytrail its wake up vector happens to be installed at the same address 0x1000. While on Linux its wake up vector does not overlap this memory range, but after resume kernel checks low memory range per config option CONFIG_X86_RESERVE_LOW which is 64K by default to see whether a memory corruption occurs during the suspend/resume (it's harmless, but warnings are shown in the kernel dmesg logs). We cannot simply mark the these memory as reserved in E820 table because such configuration makes GRUB complain: unable to allocate real mode page. Hence we choose to back up these memories to the place where we reserved on our stack for our S3 resume work. Before jumping to OS wake up vector, we need restore the original content there. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Stefan Roese <sr@denx.de>
2017-05-17x86: pci: Allow conditionally run VGA rom in S3Bin Meng
Introduce a new CONFIG_S3_VGA_ROM_RUN option so that U-Boot can bypass executing VGA roms in S3. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Stefan Roese <sr@denx.de>
2017-05-17x86: acpi: Turn on ACPI mode for S3Bin Meng
Before jumping to OS waking up vector, we need turn on ACPI mode for S3, just like what we do for a normal boot. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Stefan Roese <sr@denx.de>
2017-05-17x86: acpi: Refactor acpi_resume()Bin Meng
To do something more in acpi_resume() like turning on ACPI mode, we need locate ACPI FADT table pointer first. But currently this is done in acpi_find_wakeup_vector(). This changes acpi_resume() signature to accept ACPI FADT pointer as the parameter. A new API acpi_find_fadt() is introduced, and acpi_find_wakeup_vector() is updated to use FADT pointer as the parameter as well. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Stefan Roese <sr@denx.de>
2017-05-17x86: acpi: Make enter_acpi_mode() publicBin Meng
enter_acpi_mode() is useful on other boot path like S3 resume, so make it public. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Stefan Roese <sr@denx.de>
2017-05-17x86: apci: Change PM1_CNT register access to RMWBin Meng
In enter_acpi_mode() PM1_CNT register is changed to PM1_CNT_SCI_EN directly without preserving its previous value. Update to change the register access to read-modify-write (RMW). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Stefan Roese <sr@denx.de>
2017-05-17x86: Adjust board_final_cleanup() orderBin Meng
Call board_final_cleanup() before write_tables(), so that anything done in board_final_cleanup() on a normal boot path is also done on an S3 resume path. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Stefan Roese <sr@denx.de>