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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/+4
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>
2017-08-21external/xscom-utils: Add --list-bitsOliver O'Halloran1-3/+22
When using getscom/putscom it's helpful to know what bits are set in the register. This patch adds an option to print out which bits are set along with the value that was read/written to the register. Note that this output indicates which bits are set using the IBM bit ordering since that's what the XSCOM documentation uses. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-03-24external: Update xscom utils for type 1 indirect accessesMichael Neuling1-4/+6
Update get/putscom utils to support type 1 indirect access. Currently we do some (ugly) bit mangling so that we can fit a 64 bit scom address into the debugfs interface. The current code only shifts down the top bit (indirect bit). This patch changes it to shift down the whole top nibble so that the form of the indirection is also shifted. Also currently putscom always reads back the value. This causes a problem for form 1 which can only be written. This patch marks the form 1 as not readable and hence doesn't attempt the read back. The kernel debugfs scom driver doesn't do the bit mangling correctly. So for form1 to work correctly, the kernel debugfs scom driver needs updating. Existing scoms are forwards and backwards compatible with the kernel. (FWIW the kernel PRD scom interface doesn't need to be updated as it passes the whole 64 bit scom address without any bit mangling) Signed-off-by: Michael Neuling <mikey@neuling.org> Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-09-06getscom/getsram/putscom: Parse chip-id as hexAnton Blanchard1-1/+1
We print the chip-id in hex (without a leading 0x), but we fail to parse that same value correctly in getscom/getsram/putscom: # getscom -l ... 80000000 | DD2.0 | Centaur memory buffer # getscom -c 80000000 201140a Error -19 reading XSCOM Fix this by assuming base 16 when parsing chip-id. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-06-24getscom/putscom: always print full 16 digitsStewart Smith1-1/+1
Suggested-by: Daniel M Crowell <dcrowell@us.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-04-01external: improve xscom commands MakefileCédric Le Goater1-1/+3
The current Makefile is a bit rustic compared to other skiboot tools. This patch adds a proper install target and a new versioning target. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-04-01external: fix exit code in xscom commandsCédric Le Goater1-5/+5
commit 618a201ebf33 ("external: simplify help output in xscom commands") broke the exit code in some paths. Fixes: 618a201ebf33 Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-03-31external: use skiboot make_version scriptCédric Le Goater1-5/+1
Let's version like skiboot and other external tools do. There is no need to generate a version.c file. Defining VERSION on the compile commande line is enough. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> [stewart@linux.vnet.ibm.com: fix makefile CFLAGS so can be overwritten] Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-03-31external: simplify help output in xscom commandsCédric Le Goater1-16/+7
This kills a few booleans used to output version and help. Suggested-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-03-31external: add copyright to xscom filesCédric Le Goater1-0/+16
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-11-13external: Add xscom utilitiesBenjamin Herrenschmidt1-0/+98
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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