summaryrefslogtreecommitdiff
path: root/src/drivers/i2c/designware
AgeCommit message (Collapse)Author
2018-03-21drivers/i2c/designware: Fix indentationMaulik V Vaghela
Remove extra tab before printk statement. Change-Id: Id82239f74ac030f25000a08764637f6d1b52b87b Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com> Reviewed-on: https://review.coreboot.org/25295 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Naresh Solanki <naresh.solanki@intel.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2018-02-14drivers/i2c/designware: Remove spurious word ("familuar")Jonathan Neuschäfer
Fixes: b8dc63bdfe ("ic2/designware: Move Intel i2c logic to shared driver") Change-Id: Ic521a2d60b403b322ae583bb2c26da6019bf0ab0 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/23714 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-02-02drivers/i2c/designware: conform to controller restrictionsAaron Durbin
The designware i2c controller indicates that the slave address shouldn't be programmed while the controller is enabled. Therefore, switch the ordering of the slave target address and the enable. Additionally, ensure the controller is disabled prior to the start of the slave programming sequence. Lastly, chunk up the i2c_msg segments at differing slave address boundaries. That allows for simpler programming for the controller by only doing one slave address transaction chunk at a time. BUG=b:70232394,b:69250772 Change-Id: Iebc08e2db847cb182fad98e0ff3d799b9a64aca7 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/23513 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Subrata Banik <subrata.banik@intel.com> Reviewed-by: Furquan Shaikh <furquan@google.com>
2018-02-01drivers/i2c/designware: Unset IC_ENABLE when setting target addressChris Ching
To set address on AMD, IC_ENABLE == 0. BUG=b:69416132 BRANCH=none TEST=Test communication with i2c TPM on grunt and coral Change-Id: I7faee8e11439deceab946cc82d30d274b529b90d Signed-off-by: Chris Ching <chingcodes@chromium.org> Reviewed-on: https://review.coreboot.org/23293 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Subrata Banik <subrata.banik@intel.com>
2018-01-25drivers/i2c/designware: reduce API complication for bus configAaron Durbin
Right now dw_i2c_get_soc_cfg() is expecting the SoC to implement that callback for obtaining the bus config. However, we're currently forcing another parameter of struct device so one can do the lookup. This works for Intel-based systems since the struct device was needed to program the BAR, etc. However, from an API standpoint, it just complicates matters by needing to obtain the struct device. The SoC already has knowlege of its own devices so it can get the config itself by bus number. Therefore, remove that contraint from the API. BUG=b:70232394 Change-Id: Id8558f5deedda0963a46a532a7bf984e168fb270 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/23420 Reviewed-by: Subrata Banik <subrata.banik@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2018-01-24drives/i2c/designware: incorporate device_operations supportAaron Durbin
In ramstage the device_operations are needed for the i2c designware host controller. Move the intel/common/block/i2c implementation into the generic driver so other platforms can take advantage of it. BUG=b:72121803 Change-Id: Id249933fadcc016bfba00e7a6d65f56dfc220724 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/23372 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Subrata Banik <subrata.banik@intel.com>
2018-01-24drivers/i2c/designware: namespace soc functionsAaron Durbin
Rename the following functions to ensure it's clear that the designware i2c host controller driver is the one that these functions are associated with: i2c_get_soc_cfg() -> dw_i2c_get_soc_cfg() i2c_get_soc_early_base() -> dw_i2c_get_soc_early_base() i2c_soc_devfn_to_bus() -> dw_i2c_soc_devfn_to_bus() i2c_soc_bus_to_devfn() -> dw_i2c_soc_bus_to_devfn() BUG=b:72121803 Change-Id: Idb7633b45a0bb7cb7433ef5f6b154e28474a7b6d Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/23371 Reviewed-by: Justin TerAvest <teravest@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2017-12-22ic2/designware: Move Intel i2c logic to shared driverChris Ching
BUG=b:70232394 BRANCH=none TEST=emerge-reef coreboot emerge-glados Change-Id: Idb453a4d2411163e6b4a8422310bf272eac5d379 Signed-off-by: Chris Ching <chingcodes@chromium.org> Reviewed-on: https://review.coreboot.org/22822 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>