soc/mediatek/mt8195: 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 could be showed for
debugging.
BUG=b:192429713
Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: Ied63913db94b2e52ab394a66c70f7edfd507c99b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57980
Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/mediatek/mt8195/soc.c b/src/soc/mediatek/mt8195/soc.c
index 6380564..3991964 100644
--- a/src/soc/mediatek/mt8195/soc.c
+++ b/src/soc/mediatek/mt8195/soc.c
@@ -1,7 +1,9 @@
/* SPDX-License-Identifier: GPL-2.0-only */
+#include <bootmem.h>
#include <device/device.h>
#include <soc/devapc.h>
+#include <soc/dfd.h>
#include <soc/emi.h>
#include <soc/hdmi.h>
#include <soc/mcupm.h>
@@ -10,6 +12,12 @@
#include <soc/ufs.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_resource(dev, 0, (uintptr_t)_dram / KiB, sdram_size() / KiB);
@@ -21,6 +29,10 @@
dapc_init();
mcupm_init();
sspm_init();
+
+ if (CONFIG(MTK_DFD))
+ dfd_init();
+
ufs_disable_refclk();
hdmi_low_power_setting();
}