From d12d65fc54c31ee2635c0249a1d92c2e70bc1498 Mon Sep 17 00:00:00 2001 From: Martin Roth Date: Sun, 28 Jun 2015 14:06:23 -0600 Subject: Calculate HUDSON_FWM_POSITION and display warning on mismatch This patch calculates the address where the chipset firmware descriptor should be located and compares it against the actual value from Kconfig. If the two don't match, it puts up a warning. This could probably replace the config variable completely, but I wanted to see how other people felt before doing that. I seem to recall that the value used to be calculated, so I figure that there must be a reason it's done this way at this point. If we do want to keep the Kconfig setting, this patch could also be modified to just verify that the HUDSON_FWM_POSITION is inside the ROM space. Change-Id: I94addf463e2c694a94eef218ec855103a3bb5da5 Signed-off-by: Martin Roth Reviewed-on: http://review.coreboot.org/10682 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- src/southbridge/amd/agesa/hudson/Makefile.inc | 5 +++++ src/southbridge/amd/pi/hudson/Makefile.inc | 5 +++++ 2 files changed, 10 insertions(+) diff --git a/src/southbridge/amd/agesa/hudson/Makefile.inc b/src/southbridge/amd/agesa/hudson/Makefile.inc index ea86a329e92b..425f095de324 100644 --- a/src/southbridge/amd/agesa/hudson/Makefile.inc +++ b/src/southbridge/amd/agesa/hudson/Makefile.inc @@ -34,8 +34,13 @@ ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smi.c smi_util.c # |0x55AA55AA |EC ROM Address |GEC ROM Address |USB3 ROM | # +-----------+---------------+----------------+------------+ # EC ROM should be 64K aligned. + +HUDSON_FWM_POS_CALC=$(call int-add, $(call int-subtract, 0xffffffff $(call int-multiply, $(CONFIG_COREBOOT_ROMSIZE_KB) 1024)) 0x20000 1) HUDSON_FWM_POSITION=$(shell printf %u $(CONFIG_HUDSON_FWM_POSITION)) +ifneq ($(HUDSON_FWM_POS_CALC), $(HUDSON_FWM_POSITION)) +$(warning ##### WARNING: CONFIG_HUDSON_FWM_POSITION does not match calculated firmware position $(HUDSON_FWM_POS_CALC) != $(HUDSON_FWM_POSITION) ##### ) +endif #assume the cbfs header is less than 128 bytes. ROMSIG_SIZE=16 ifeq ($(CONFIG_HUDSON_XHCI_FWM), y) diff --git a/src/southbridge/amd/pi/hudson/Makefile.inc b/src/southbridge/amd/pi/hudson/Makefile.inc index 235ce1e3ec36..023e1b7daa30 100644 --- a/src/southbridge/amd/pi/hudson/Makefile.inc +++ b/src/southbridge/amd/pi/hudson/Makefile.inc @@ -58,7 +58,12 @@ ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smi.c smi_util.c # # EC ROM should be 64K aligned. +HUDSON_FWM_POS_CALC=$(call int-add, $(call int-subtract, 0xffffffff $(call int-multiply, $(CONFIG_COREBOOT_ROMSIZE_KB) 1024)) 0x20000 1) HUDSON_FWM_POSITION=$(shell printf %u $(CONFIG_HUDSON_FWM_POSITION)) + +ifneq ($(HUDSON_FWM_POS_CALC), $(HUDSON_FWM_POSITION)) +$(warning ##### WARNING: CONFIG_HUDSON_FWM_POSITION does not match calculated firmware position $(HUDSON_FWM_POS_CALC) != $(HUDSON_FWM_POSITION) ##### ) +endif CBFS_HEADER_SIZE=0x40 #assume the cbfs header is less than $(CBFS_HEADER_SIZE) bytes. -- cgit v1.2.3