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* platform: Restructure bmc_platform typeAndrew Jeffery2018-10-111-1/+1
| | | | | | | | | | Segregate the BMC platform configuration into hardware and software components. This allows population of platform default values for hardware configuration that may no-longer be accessible by the host. Signed-off-by: Andrew Jeffery <andrew@aj.id.au> [stewart: fixup pci-quirk unit test] Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
* BMC/PCI: Check slot tables against detected devicesStewart Smith2016-12-131-0/+1
| | | | | | | | | | | | | | | | | | On BMC machines, we have slot tables of built in PHBs, slots and devices that are physically present in the system (such as the BMC itself). We can use these tables to check what we *detected* against what *should* be in the system and throw an error if they differ. We have seen this occur a couple of times while still booting, giving the user just an empty petitboot screen and not much else to go on. This patch helps in that we get a skiboot error message, and at some point in the future when we pump them up to the OS we could get a big friendly error message telling you you're having a bad day. Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com> Acked-by: Russell Currey <ruscur@russell.cc> [stewart@linux.vnet.ibm.com: add barreleye] Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* Add BMC platform to enable correct OEM IPMI commandsStewart Smith2016-11-081-1/+2
| | | | | | | | | | | | | | | An out of tree platform (p8dtu) uses a different IPMI OEM command for IPMI_PARTIAL_ADD_ESEL. This exposed some assumptions about the BMC implementation in our core code. Now, with platform.bmc, each platform can dictate (or detect) the BMC that is present. We allow it to be set at runtime rather than purely statically in struct platform as it's possible to have differing BMC implementations on the one machine (e.g. AMI BMC or OpenBMC). Acked-by: Jeremy Kerr <jk@ozlabs.org> [stewart@linux.vnet.ibm.com: remove enum, update (C) years] Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* firestone: fix spacing in slot nameJeremy Kerr2015-10-261-1/+1
| | | | | | | The other SlotN names have no space. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* platforms/astbmc: Move prd_init calls to astbmc_early_init()Jeremy Kerr2015-09-151-1/+0
| | | | | | | | | | | | Currently, most astbmc platforms do their own call to prd_init(), but garrison is out-of-sync. This change moves the prd_init call to astbmc_early_init, so we don't need to enable it on every platform. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Reviewed-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* firestone: Add slot tablesBenjamin Herrenschmidt2015-09-111-0/+110
| | | | | | | Slot names courtesy of Sertac Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* IPMI: Introduce attention callVasant Hegde2015-09-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Presently abort() function is not working on BMC based machine. System hangs after abort/assert call. We have to reboot machine from BMC (IPMI command or BMC console). This patch introduces attention functionality for BMC based machine. It logs eSEL event that contains OPAL version, file info and backtrace. And calls cec_reboot... which takes care of rebooting host. Note: - This patch uses ipmi_queue_msg() instead of ipmi_queue_msg_sync() as we are having some issues with sync path. This will resolved once we sort out [1]. - This patch calls cec_reboot to reboot machine after logging eSEL event. It queues IPMI message and bt_poll() should be working until we pass reboot IPMI message to BMC. Hence we have while loop with time_wait_ms(). Alternatively we can use xscom_trigger_xstop().. but it will stop immediately and eSEL logging fails. [1] https://lists.ozlabs.org/pipermail/skiboot/2015-August/001824.html Sample eSEL output after assert call: ------------------------------------ [hegdevasant@hegdevasant bin]$ strings fir01bmc.150820.120511.eSel.binary BB821410 AT8335-GTA000000000000 AT8335-GTA000000000000UD ATDESC OPAL version : skiboot-5.1.1-44-geae3999-hegdevasant-dirty-bb31bfd File info : core/init.c:463:0 CPU 0060 Backtrace: S: 0000000031d83bc0 R: 000000003006086c .ipmi_terminate+0x110 S: 0000000031d83c60 R: 0000000030017f90 ._abort+0x80 S: 0000000031d83ce0 R: 0000000030017fd8 .assert_fail+0x34 S: 0000000031d83d60 R: 0000000030013dcc .load_and_boot_kernel+0x784 S: 0000000031d83e30 R: 000000003001437c .main_cpu_entry+0x57c S: 0000000031d83f00 R: 0000000030002544 boot_entry+0x194 Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* Support for Naples LPC serial interruptsBenjamin Herrenschmidt2015-06-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | This adds support for the HW SerIRQ deserializer of the P8 LPC bridge which is properly wired up on Naples. It also adds support for detecting and reporting LPC error interrupts on all P8s. On most platforms (Rhesus is the exception here due to the way it lets Linux handle the UART interrupts directly), we modify the device-tree to properly represent the LPC controller as a cascaded interrupt-controller and the "interrupts" property of LPC devices to contain the actual LPC interrupt number for the device. We add a mechanism for drivers to register specific LPC interrupts, and a "workaround" for pre-Naples P8 which platforms can use to call all of them for when the external FPGA based deserializer is used. There's also a callback on LPC resets which isn't used yet, we need a bit more work on the general LPC error handling, but it can be done a separate patches. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* prd: Enable prd_init() for firestone platformVaidyanathan Srinivasan2015-06-111-0/+1
| | | | | | | | | Call prd_init() on astbmc/firestone platform in order to enable PRD in host kernel. Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Acked-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* astbmc: asynchronous preloading of resourcesStewart Smith2015-05-071-1/+2
| | | | | | | | | | | | | | Implement start_preload_resource and resource_loaded platform functions for astbmc machines (palmetto, habanero, firestone). This means we start loading kernel and initramfs from flash much earlier in boot, doing things like PCI init concurrently so that by the time we go to boot the payload, it's already loaded. Implementation is a simple queue with a job running on another CPU doing the libflash calls. Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* plat/firestone: Add missing platform hooksBenjamin Herrenschmidt2015-03-311-0/+1
| | | | | | | We didn't keep it in sync with palmetto and habanero Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* plat/firestone: Add missing platform hooksBenjamin Herrenschmidt2015-03-311-0/+3
| | | | | | | | We didn't keep it in sync with palmetto and habanero Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* platforms/firestone: Add Firestone platformJeremy Kerr2015-01-221-0/+44
Based on Habanero. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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