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path: root/drivers/i2c/designware_i2c_pci.c
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2020-05-18common: Drop log.h from common headerSimon Glass
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-01-27i2c: designware_i2c: Add spike supressionSimon Glass
Some versions of this peripheral include a spike-suppression phase of the bus. Add support for this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2020-01-27i2c: designware_i2c: Read device-tree propertiesSimon Glass
The i2c controller defines a few timing properties. Read these in and store them for use by the driver. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2019-12-15i2c: designware: Add Apollo Lake supportSimon Glass
For Apollo Lake we need to take the I2C bus controller out of reset before using this. Add this functionality to the driver. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15i2c: designware: Support use in SPLSimon Glass
Allow this driver to set up an IO address in SPL using an 'early-regs' property. This allows SPL to use the I2C driver without having to enable the full PCI stack. Also split out ofdata_to_platdata in designware driver since this is more correct, and more convenient for the new logic. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15i2c: designware: Avoid using static dataSimon Glass
Drivers are not allowed to use static data since they may be used in SPL where BSS is not available. It is possible that driver model may provide support for numbering devices in the future. But for now, move this to global_data. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15i2c: designware: Tidy up PCI supportSimon Glass
This is hacked into the driver at present. It seems better to have it as a separate driver that uses the base driver. Create a new file and put the X86 code into it. Actually the Baytrail settings should really come from the device tree. Note that 'has_max_speed' is added as well. This is currently always false but since only Baytrail provides the config, it does not affect operation for other devices. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>