summaryrefslogtreecommitdiff
path: root/arch/x86/cpu/ivybridge/lpc.c
AgeCommit message (Collapse)Author
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-02-08dm: core: Replace of_offset with accessorSimon Glass
At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-02-06x86: ivybridge: Declare global data where it is usedSimon Glass
Some files are missing this declaration. Add it to avoid build errors when we actually need the declaration. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-10-11x86: ivybridge: Tidy up enable_clock_gating() for 64-bitSimon Glass
Fix the hex case and remove unused brackets. Use ~0U instead of ~0UL to allow compilation on 64-bit machines. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-10-11x86: ivybridge: Fix PCH power setupSimon Glass
At present pch_power_options() has the arguments to writel() around the wrong way. Fix this and update it to compile on 64-bit machines. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-07-11x86: fdt: Drop the unused compatible strings in fdtdecSimon Glass
We have drivers for several more devices now, so drop the strings which are no-longer used. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-05-23x86: Drop asm/acpi.hBin Meng
Remove asm/acpi.h which is never used. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-03-17x86: Move common LPC code to its own placeSimon Glass
Some of the LPC code is common to several Intel LPC devices. Move it into a common location. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-03-17x86: Add the root-complex block to common intel registersSimon Glass
This is similar to MCH in that it is used in various drivers. Add it to the common header. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24x86: ivybridge: Drop the SMM-locking codeSimon Glass
U-Boot does not support SMM yet, so we can drop this code. It is easy to bring back when needed. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24x86: ivybridge: Convert pch.c to use DM PCI APISimon Glass
Convert this file to use the driver model PCI API. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24x86: ivybridge: Convert lpc init code to DM PCI APISimon Glass
Adjust this code to use the driver model PCI API. This is all called through lpc_init_extra(). Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24x86: ivybridge: Move LPC init into the LPC probe() methodSimon Glass
Drop the lpc_init_extra() function and just use the post-relocation LPC probe() instead. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24x86: ivybridge: Move lpc_enable() into gma.cSimon Glass
This graphics init code is best placed in the gma init code. Move the code and drop the function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24x86: ivybridge: Move GPIO init to the LPC init() methodSimon Glass
This init can happen in the driver also. Move it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24x86: ivybridge: Move sandybridge init to the lpc probe() methodSimon Glass
The watchdog can be reset later when probing the LPC after relocation. Move it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24x86: ivybridge: Rename lpc_init() to lpc_init_extra()Simon Glass
In preparation for adding an init() method to the LPC uclass, rename this existing function so that it will not conflict. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24x86: ivybridge: Move more init to the probe() functionSimon Glass
Move SPI and port80 init to lpc_early_init(), called from the LPC's probe() method. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24x86: ivybridge: Move lpc_early_init() to probe()Simon Glass
Move this code to the LPC's probe() method so that it will happen automatically when the LPC is probed before relocation. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24x86: ivybridge: Set up the LPC device using driver modelSimon Glass
Find the LPC device in arch_cpu_init_dm() as a first step to converting this code to use driver model. Probing the LPC will probe its parent (the PCH) automatically, so make sure that probing the PCH does nothing before relocation. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-12-09x86: Remove HAVE_ACPI_RESUMEBin Meng
These are currently dead codes. Until we have complete ACPI support, we don't know if it works or not. Remove to avoid confusion. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2015-07-28x86: Enable DM RTC support for all x86 boardsBin Meng
Add a RTC node in the device tree to enable DM RTC support. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> (Squashed in 'x86: Fix RTC build error on ivybridge')
2015-04-18x86: chromebook_link: dts: Add PCH and LPC devicesSimon Glass
The PCH (Platform Controller Hub) is on the PCI bus, so show it as such. The LPC (Low Pin Count) and SPI bus are inside the PCH, so put these in the right place also. Rename the compatible strings to be more descriptive since this board is the only user. Once we are using driver model fully on x86, these will be dropped. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-18dm: x86: pci: Convert chromebook_link to use driver model for pciSimon Glass
Move chromebook_link over to driver model for PCI. This involves: - adding a uclass for platform controller hub - removing most of the existing PCI driver - adjusting how CPU init works to use driver model instead - rename the lpc compatible string (it will be removed later) This does not really take advantage of driver model fully, but it does work. Furture work will improve the code structure to remove many of the explicit calls to init the board. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-16x86: Add a x86_ prefix to the x86-specific PCI functionsSimon Glass
These functions currently use a generic name, but they are for x86 only. This may introduce confusion and prevents U-Boot from using these names more widely. In fact it should be possible to remove these at some point and use generic functions, but for now, rename them. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2014-11-25x86: ivybridge: Add additional LPC initSimon Glass
Set up all the remaining pieces of the LPC (low-pin-count) peripheral in PCH (Peripheral Controller Hub). Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-21x86: ivybridge: Add early LPC init so that serial worksSimon Glass
The PCH (Platform Controller Hub) includes an LPC (Low Pin Count) device which provides a serial port. This is accessible on Chromebooks, so enable it early in the boot process. Signed-off-by: Simon Glass <sjg@chromium.org>