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| author | Dan Crowell <dcrowell@us.ibm.com> | 2018-05-31 17:03:24 -0500 |
|---|---|---|
| committer | William G. Hoffa <wghoffa@us.ibm.com> | 2018-06-04 17:32:40 -0400 |
| commit | 41daed137d2f31ba125a1ada241755e42f36868c (patch) | |
| tree | 5067edb244a9ed4bd0bc7a04b792df15c0a93619 /src/include/bootloader | |
| parent | cbacafbc508accc492c63d4f18e509a6082e8f45 (diff) | |
| download | blackbird-hostboot-41daed137d2f31ba125a1ada241755e42f36868c.tar.gz blackbird-hostboot-41daed137d2f31ba125a1ada241755e42f36868c.zip | |
Write Hostboot HRMOR into core scratch reg 1
Hostboot code will write the current HRMOR value into core
scratch reg 1 (scom=xx010A87, spr=0x08) at initial boot.
This data is ORed into the memory size data that was already
present. The bootloader code will do the same.
Also updated the debug tools to key off of this data if it
is available to avoid any HRMOR hardcoding.
The purpose of this change is to provide a method for the FSP
code to handle various memory remapping scenarios that are
currently in plan without needing any explicit communication
from Hostboot.
Change-Id: Ia3c81980ebd780ae182956cddae785dd408fbed9
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/59699
Reviewed-by: Prachi Gupta <pragupta@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Reviewed-by: William G. Hoffa <wghoffa@us.ibm.com>
Diffstat (limited to 'src/include/bootloader')
| -rw-r--r-- | src/include/bootloader/bootloader.H | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/include/bootloader/bootloader.H b/src/include/bootloader/bootloader.H index 8020311ba..55b148f6b 100644 --- a/src/include/bootloader/bootloader.H +++ b/src/include/bootloader/bootloader.H @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HostBoot Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2015,2017 */ +/* Contributors Listed Below - COPYRIGHT 2015,2018 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -139,6 +139,11 @@ namespace Bootloader{ } + /**Core Scratch Register 1 which tells HRMOR and memsize. + This is passed into writeScratchReg to select which scratch + reg you are writing */ +#define MMIO_SCRATCH_MEMORY_STATE 0x08 + /**Core Scratch Register 3 which tells the state of hostboot. This is passed into writeScratchReg to select which scratch reg you are writing */ |
