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2020-04-08hw/centaur: Convert to use the new scom APIOliver O'Halloran1-4/+14
Currently we assume any xscom_read / write targeted at a chipid with 0x8 as the top four bits is intended to be a centaur SCOM. On non-P8 platforms there is no reason to assume this so covert it to use the new struct scom_controller infrastructure. Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
2020-03-12Re-license IBM written files as Apache 2.0 OR GPLv2+Stewart Smith1-1/+1
SPDX makes it a simpler diff. I have audited the commit history of each file to ensure that they are exclusively authored by IBM and thus we have the right to relicense. The motivation behind this is twofold: 1) We want to enable experiments with coreboot, which is GPLv2 licensed 2) An upcoming firmware component wants to incorporate code from skiboot and code from the Linux kernel, which is GPLv2 licensed. I have gone through the IBM internal way of gaining approval for this. The following files are not exclusively authored by IBM, so are *not* included in this update (I will be seeking approval from contributors): core/direct-controls.c core/flash.c core/pcie-slot.c external/common/arch_flash_unknown.c external/common/rules.mk external/gard/Makefile external/gard/rules.mk external/opal-prd/Makefile external/pflash/Makefile external/xscom-utils/Makefile hdata/vpd.c hw/dts.c hw/ipmi/ipmi-watchdog.c hw/phb4.c include/cpu.h include/phb4.h include/platform.h libflash/libffs.c libstb/mbedtls/sha512.c libstb/mbedtls/sha512.h platforms/astbmc/barreleye.c platforms/astbmc/garrison.c platforms/astbmc/mihawk.c platforms/astbmc/nicole.c platforms/astbmc/p8dnu.c platforms/astbmc/p8dtu.c platforms/astbmc/p9dsu.c platforms/astbmc/vesnin.c platforms/rhesus/ec/config.h platforms/rhesus/ec/gpio.h platforms/rhesus/gpio.c platforms/rhesus/rhesus.c platforms/astbmc/talos.c platforms/astbmc/romulus.c Signed-off-by: Stewart Smith <stewart@linux.ibm.com> [oliver: fixed up the drift] Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
2019-07-26SPDX-ify all skiboot codeStewart Smith1-13/+5
Use Software Package Data Exchange (SPDX) to indicate license for each file that is unique to skiboot. At the same time, ensure the (C) who and years are correct. See https://spdx.org/ Signed-off-by: Stewart Smith <stewart@linux.ibm.com> [oliver: Added a few missing files] Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
2017-09-05hw/centaur: Fix whitespace around commentJoel Stanley1-5/+5
Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Michael Neuling <mikey@neuling.org> Reviewed-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-09-05hw/centaur: Remove space before tab in commentJoel Stanley1-1/+1
Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Michael Neuling <mikey@neuling.org> Reviewed-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-09-14centaur: print message on disabling xscoms to centaur due to many errorsStewart Smith1-1/+13
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-09-13centaur: Mark centaur offline after 10 consecutive access errorsBenjamin Herrenschmidt1-0/+28
This avoids spamming the logs when the centaur is dead and PRD constantly tries to access it Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-07-27centaur: Initialize i2c master listBenjamin Herrenschmidt1-0/+1
It was left uninitialized which could cause issues later on Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-10-01centaur: Add indirect XSCOM supportBenjamin Herrenschmidt1-3/+106
It works just like P8, we copy the code for now rather than make it somewhat common due to our locking differences and to limit the risk close to release. We can refactor later. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-07-06centaur: Improve FSI SCOM error handlingBenjamin Herrenschmidt1-45/+77
Based on HostBoot, recovers from bad XSCOM addresses Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-07-06centaur: Add API to enable/disable the sensor cacheBenjamin Herrenschmidt1-0/+59
The i2c driver will need to use them to avoid conflicts between i2c accesses initiated by the host and by the sensor cache. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-07-06centaur: Expose centaur_chip and get_centaur()Benjamin Herrenschmidt1-11/+3
They will be used by the i2c driver Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-10-28centaur: Detect Centaur DD2 as well as DD1Benjamin Herrenschmidt1-1/+1
We use FSI for both for now. We'll add Centaur XSCOM support later for DD2.0 Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-07-02Initial commit of Open Source releaseBenjamin Herrenschmidt1-0/+326
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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