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path: root/src/soc/amd/stoneyridge/smbus.c
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2020-02-04soc/amd: unify SMBus supportAaron Durbin
The SMBus support is identical between stoneyridge and picasso. Unify on common support code. Change-Id: Ic3412c5ee67977a45c50b68f36acc45c3d560db5 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38616 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
2020-01-31soc/amd/stoneyridge: move to using smbus_host.h definitionsAaron Durbin
The SMBus function declarations were duplicated. Use the common ones provided by smbus_host.h. Change-Id: Ic912b91daf79ecd2c276a383edcda563891cf643 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38222 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-01-31soc/amd/stoneyridge: use SMBus timeout in compilation unitAaron Durbin
The timeout is fixed and only used in one place. Put the assumption in the compliation unit utilizing the defintion. Change-Id: I7537549da90d0bc158e638c533e8e8b0f1e28a7d Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38612 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-01-02src: Remove unneeded 'include <arch/io.h>'Elyes HAOUAS
Change-Id: Ie4293094ad703a2d8b68a8c640bd8d9cece2e6e8 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37983 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2019-06-06src/amd/stoneyridge: Move alink source to commonMarshall Dawson
Relocate the alink access functions out of stoneyridge where they were dead code. This source maintains the ability to access all register spaces, however more modern APUs define only ABCFG in the BKDGs. BUG=b:131682806 Change-Id: I5c558ccc64bd04a66399c678d43beb0a97e72f63 Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32663 Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-05-16soc/amd/common: Create AcpiMmio functionality from stoneyridgeMarshall Dawson
Move the stoneyridge AcpiMmio code into soc/amd/common. The SB800 southbridge introduced the MMIO hardware blocks at 0xfed80000 commonly known as AcpiMmio. Implementations beginning with Mullins enable decode in PMx04. Older designs use PMx24 and allow for configuring the base address. Future work may support the older version. Comparing the documentation for AMD's RRGs and BKDGs, it is evident that the block locations have not been reassigned across products. In some cases, address locations are deprecated and new ones consumed, e.g. the early GPIO blocks were simpler at offset 0x100 and the newer GPIO banks are now at 0x1500, 0x1600, and 0x1700. Note: Do not infer the definitions within the hardware blocks are consistent across family/model products. BUG=b:131682806 Change-Id: I083b6339cd29e72289e63c9331a815c46d71600d Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32649 Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-05-08soc/amd/stoneyridge: Rewrite smbus_read/write, add asfMarshall Dawson
Convert smbus_read8() and smbus_write8() functions to use the same arguments as the other AcpiMmio blocks, and add 16 and 32 bit versions. Add matching functions for the ASF controller. Change-Id: I3b0ecf21f20472245da98ab5e711a54e99dca93a Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32644 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-by: Martin Roth <martinroth@google.com>
2019-03-04Fix <io.h> includesKyösti Mälkki
These resolved to <device/oprom/include/io.h> which included <arch/io.h> that we really wanted. Change-Id: I9aa0bdf34cd1d53e20b4494c7986f0878f4fd840 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/31693 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-01-30soc/amd/stoneyridge: Access SMBUS through MMIORichard Spiegel
Currently SMBUS registers are accessed through IO, but with stoneyridge they can be accessed through MMIO. This reduces the time of execution by a tiny amount (MMIO write is faster than IO write, though MMIO read is about as fast as IO read) as most of the time consumed is actually transaction time. Convert code to MMIO access. BUG=b:117754784 TEST=Used IO to write and MMIO to read, to confirm a one to one relationship between IO and MMIO. Then build and boot grunt. Change-Id: Ibe1471d1d578611e7d666f70bc97de4c3b74d7f8 Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-on: https://review.coreboot.org/c/29258 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2017-11-10soc/amd/stoneyridge: Simplify and fix SMBUS codeRichard Spiegel
Solve issues left from Change-Id Ib88a868e654ad127be70ecc506f6b90b784f8d1b Unify code: smbus.c to have the actual execution code, sm.c and smbus_spd.c call functions within smbus.c. Fix some functions that wrongly use SMBHSTCTRL as the register for the data being transfered. The correct register is SMBHSTDAT0. Include file smbus.h should only be used by sm.c, smbus.c and smbus_spd.c. BUG=b:62200225 Change-Id: Ibd55560c95b6752652a4f255b04198e7a4e77d05 Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-on: https://review.coreboot.org/21887 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
2017-09-27smbus: Fix a typo ("Set the device I'm talking too")Jonathan Neuschäfer
Change-Id: Ia14bbdfe973cec4b366879cd2ed5602b43754260 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/21653 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2017-06-27soc/amd/stoneyridge: Fix most checkpatch errorsMarshall Dawson
Correct the majority of reported errors and mark most of the remaining ones as todo. (Some of the lines requiring a >80 break are indented too much currently.) Some of the alignment in hudson.h still causes checkpatch errors, but this is intentionally left as-is. Also make other misc. changes, e.g. consistency in lower-case for hex values, using defined values, etc. These changes were confirmed to cause no changes in a Gardenia build. No other improvements were made, e.g. changing to helper functions, or converting functions like __outbyte(). BUG=chrome-os-partner:622407746 Change-Id: I768884a4c4b9505e77f5d6bfde37797520878912 Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/19986 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2017-06-26soc: Add AMD Stoney Ridge southbridge codeMarc Jones
Copy the Hudson/Kern code from southbridge/amd/pi/hudson. This is the first of a series of patches to migrate Stoney Ridge support from cpu, northbridge, and southbridge to soc/ Changes: - add soc/amd/stoneyridge and soc/amd/common - remove all other Husdon versions - update include paths, etc - clean up Kconfig and Makefile - create chip.c to contain chip_ops Change-Id: Ib88a868e654ad127be70ecc506f6b90b784f8d1b Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/19722 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>