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authorRex-BC Chen <rex-bc.chen@mediatek.com>2022-08-04 17:11:22 +0800
committerMartin L Roth <gaumless@gmail.com>2022-08-13 17:09:40 +0000
commitc3d2e9c593c9f30a82bd94375aaac2f9cd6a16fa (patch)
tree2c0e576a547d350519a9c693974fe0ff963919d0
parentd6cea76dfa8d0cb65c22ef55c4947e7d1068dbc3 (diff)
soc/mediatek/mt8188: Initialize DFD
DFD (Design for Debug) is a debugging tool, which scans flip-flops and dumps to internal RAM on the WDT reset. After system reboots, those values can be shown for debugging using MTK internal parsing tools. TEST=build pass BUG=b:236331724 Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> Change-Id: I6d19dc6f4e47ed69ba2ea87c79984020a413aee9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/66586 Reviewed-by: Yidi Lin <yidilin@chromium.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
-rw-r--r--src/soc/mediatek/mt8188/Makefile.inc1
-rw-r--r--src/soc/mediatek/mt8188/soc.c11
2 files changed, 12 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8188/Makefile.inc b/src/soc/mediatek/mt8188/Makefile.inc
index c1caf3a69a..d76e6f3d77 100644
--- a/src/soc/mediatek/mt8188/Makefile.inc
+++ b/src/soc/mediatek/mt8188/Makefile.inc
@@ -25,6 +25,7 @@ romstage-y += ../common/pmif_spmi.c pmif_spmi.c
romstage-y += ../common/rtc.c ../common/rtc_osc_init.c ../common/rtc_mt6359p.c
ramstage-y += ../common/auxadc.c
+ramstage-y += ../common/dfd.c
ramstage-y += emi.c
ramstage-y += ../common/mcu.c
ramstage-y += ../common/mcupm.c
diff --git a/src/soc/mediatek/mt8188/soc.c b/src/soc/mediatek/mt8188/soc.c
index 6066de476b..5b2431bc25 100644
--- a/src/soc/mediatek/mt8188/soc.c
+++ b/src/soc/mediatek/mt8188/soc.c
@@ -1,12 +1,20 @@
/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+#include <bootmem.h>
#include <device/device.h>
+#include <soc/dfd.h>
#include <soc/emi.h>
#include <soc/mcupm.h>
#include <soc/mmu_operations.h>
#include <soc/sspm.h>
#include <symbols.h>
+void bootmem_platform_add_ranges(void)
+{
+ if (CONFIG(MTK_DFD))
+ bootmem_add_range(DFD_DUMP_ADDRESS, DFD_DUMP_SIZE, BM_MEM_RESERVED);
+}
+
static void soc_read_resources(struct device *dev)
{
ram_range(dev, 0, (uintptr_t)_dram, sdram_size());
@@ -17,6 +25,9 @@ static void soc_init(struct device *dev)
mtk_mmu_disable_l2c_sram();
mcupm_init();
sspm_init();
+
+ if (CONFIG(MTK_DFD))
+ dfd_init();
}
static struct device_operations soc_ops = {