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path: root/src/soc/qualcomm/ipq40xx/i2c.c
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2017-08-18include/device: Split i2c.h into threeNico Huber
Split `i2c.h` into three pieces to ease reuse of the generic defi- nitions. No code is changed. * `i2c.h` - keeps the generic definitions * `i2c_simple.h` - holds the current, limited to one controller driver per board, devicetree independent I2C interface * `i2c_bus.h` - will become the devicetree compatible interface for native I2C (e.g. non-SMBus) controllers Change-Id: I382d45c70f9314588663e1284f264f877469c74d Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/20845 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-08-14i2c: Move to Linux like `struct i2c_msg`Nico Huber
Our current struct for I2C segments `i2c_seg` was close to being compa- tible to the Linux version `i2c_msg`, close to being compatible to SMBus and close to being readable (e.g. what was `chip` supposed to mean?) but turned out to be hard to fix. Instead of extending it in a backwards compatible way (and not touching current controller drivers), replace it with a Linux source compatible `struct i2c_msg` and patch all the drivers and users with Coccinelle. The new `struct i2c_msg` should ease porting drivers from Linux and help to write SMBus compatible controller drivers. Beside integer type changes, the field `read` is replaced with a generic field `flags` and `chip` is renamed to `slave`. Patched with Coccinelle using the clumsy spatch below and some manual changes: * Nested struct initializers and one field access skipped by Coccinelle. * Removed assumption in the code that I2C_M_RD is 1. * In `i2c.h`, changed all occurences of `chip` to `slave`. @@ @@ -struct i2c_seg +struct i2c_msg @@ identifier msg; expression e; @@ ( struct i2c_msg msg = { - .read = 0, + .flags = 0, }; | struct i2c_msg msg = { - .read = 1, + .flags = I2C_M_RD, }; | struct i2c_msg msg = { - .chip = e, + .slave = e, }; ) @@ struct i2c_msg msg; statement S1, S2; @@ ( -if (msg.read) +if (msg.flags & I2C_M_RD) S1 else S2 | -if (msg.read) +if (msg.flags & I2C_M_RD) S1 ) @@ struct i2c_msg *msg; statement S1, S2; @@ ( -if (msg->read) +if (msg->flags & I2C_M_RD) S1 else S2 | -if (msg->read) +if (msg->flags & I2C_M_RD) S1 ) @@ struct i2c_msg msg; expression e; @@ ( -msg.read = 0; +msg.flags = 0; | -msg.read = 1; +msg.flags = I2C_M_RD; | -msg.read = e; +msg.flags = e ? I2C_M_RD : 0; | -!!(msg.read) +(msg.flags & I2C_M_RD) | -(msg.read) +(msg.flags & I2C_M_RD) ) @@ struct i2c_msg *msg; expression e; @@ ( -msg->read = 0; +msg->flags = 0; | -msg->read = 1; +msg->flags = I2C_M_RD; | -msg->read = e; +msg->flags = e ? I2C_M_RD : 0; | -!!(msg->read) +(msg->flags & I2C_M_RD) | -(msg->read) +(msg->flags & I2C_M_RD) ) @@ struct i2c_msg msg; @@ -msg.chip +msg.slave @@ struct i2c_msg *msg; expression e; @@ -msg[e].chip +msg[e].slave @ slave disable ptr_to_array @ struct i2c_msg *msg; @@ -msg->chip +msg->slave Change-Id: Ifd7cabf0a18ffd7a1def25d1d7059b713d0b7ea9 Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/20542 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-09soc/qualcomm/ipq40xx: Use block mode for I2CVaradarajan Narayanan
In FIFO mode, the I2C driver was not able to fetch more than 32 bytes of data from the TPM device. Switch to block mode to be able to read more data. BUG=chrome-os-partner:51096 TEST=TPM commands succeed BRANCH=None Change-Id: Ib52a1b03667f61a08ce048d38407a5b60abf660d Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: fbcd40dc67d796d3e31675bd35321282667fe9fa Original-Change-Id: I765b76f9d7743f6d387470de594fb6eee99e08ca Original-Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org> Original-Reviewed-on: https://chromium-review.googlesource.com/357960 Original-Commit-Ready: Kan Yan <kyan@google.com> Original-Tested-by: Kan Yan <kyan@google.com> Original-Reviewed-by: Kan Yan <kyan@google.com> Reviewed-on: https://review.coreboot.org/16051 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-05-10soc/qualcomm/ipq40xx: Add support for BLSP QUP I2CVaradarajan Narayanan
Able to talk to the TPM device and the commands seem to succeed. BUG=chrome-os-partner:49249 chrome-os-partner:49250 TEST=All commands to the TPM succeed BRANCH=none Original-Commit-Id: c13900108f524c8422c38dee88469c8bfe24d0bd Original-Change-Id: Ie8c3c1ab1290cd8d7e6ddd1ae22f765c7be81019 Original-Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org> Original-Reviewed-on: https://chromium-review.googlesource.com/333314 Original-Commit-Ready: David Hendricks <dhendrix@chromium.org> Original-Tested-by: David Hendricks <dhendrix@chromium.org> Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> squashed: soc/qualcomm/ipq40xx: Add support for BLSP QUP SPI - Enable BLSP SPI driver for ipq40xx - supports only FIFO mode BUG=chrome-os-partner:49249 TEST=None. Initial code not sure if it will even compile BRANCH=none Original-Commit-Id: 0714025975854dd048d35fe602824ead4c7d94e9 Original-Change-Id: If809b0fdf7d6c9405db6fd3747a3774c00ea9870 Original-Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org> Original-Reviewed-on: https://chromium-review.googlesource.com/333303 Original-Commit-Ready: David Hendricks <dhendrix@chromium.org> Original-Tested-by: David Hendricks <dhendrix@chromium.org> Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Change-Id: Ia518af5bfc782b08a0883ac93224d476d07e2426 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/14677 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-05-10soc/qualcomm/ipq40xx: Initial commit for IPQ40xx SoC supportVaradarajan Narayanan
Copy 'ipq806x' files as a template BUG=chrome-os-partner:49249 TEST=None. Initial code not sure if it will even compile BRANCH=none Original-Commit-Id: dc6a5937953fe61cd4b5a99ca49f9371c4b712d4 Original-Change-Id: If171fcdd3b0561cb6b7dab5f8434de7ef711ea41 Original-Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org> Original-Signed-off-by: Kan Yan <kyan@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/333178 Original-Commit-Ready: David Hendricks <dhendrix@chromium.org> Original-Tested-by: David Hendricks <dhendrix@chromium.org> Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> squashed: soc/qualcomm/ipq40xx: Update ipq806x/storm references Since the files were taken from ipq806x/storm as template. Update those references to reflect ipq40xx/gale. BUG=chrome-os-partner:49249 TEST=None. Initial code not sure if it will even compile BRANCH=none Original-Commit-Id: c6c76d184cc92c09e6826fbdc7d7fac59b2cb69b Original-Change-Id: Ieae1bce25291243b4a6034d37a6949978f318997 Original-Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org> Original-Reviewed-on: https://chromium-review.googlesource.com/333293 Original-Commit-Ready: David Hendricks <dhendrix@chromium.org> Original-Tested-by: David Hendricks <dhendrix@chromium.org> Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Change-Id: Ie5794c48131ae562861074b406106734541880d9 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/14644 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
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