summaryrefslogtreecommitdiff
path: root/arch/x86/cpu/ivybridge/lpc.c
AgeCommit message (Collapse)Author
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>