Attention is currently required from: Hung-Te Lin, Yidi Lin, Yu-Ping Wu.
Jarried Lin has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/83926?usp=email )
Change subject: soc/mediatek/mt8196: Initialize watchdog ......................................................................
soc/mediatek/mt8196: Initialize watchdog
Add watchdog support for MT8196.
TEST=build pass and WDT uart log BUG=b:317009620
Change-Id: I9d5e71aa27d469855c2bd65abc5309d69a018750 Signed-off-by: Jarried Lin jarried.lin@mediatek.corp-partner.google.com --- M src/soc/mediatek/mt8196/Makefile.mk M src/soc/mediatek/mt8196/bootblock.c A src/soc/mediatek/mt8196/include/soc/wdt.h A src/soc/mediatek/mt8196/wdt.c 4 files changed, 34 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/26/83926/1
diff --git a/src/soc/mediatek/mt8196/Makefile.mk b/src/soc/mediatek/mt8196/Makefile.mk index 97b4dd7..cc47f3f 100644 --- a/src/soc/mediatek/mt8196/Makefile.mk +++ b/src/soc/mediatek/mt8196/Makefile.mk @@ -10,6 +10,7 @@
bootblock-y += bootblock.c bootblock-y += ../common/mmu_operations.c +bootblock-y += ../common/wdt.c ../common/wdt_req.c wdt.c
romstage-y += ../common/cbmem.c romstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c l2c_ops.c diff --git a/src/soc/mediatek/mt8196/bootblock.c b/src/soc/mediatek/mt8196/bootblock.c index f48e78c..770c603 100644 --- a/src/soc/mediatek/mt8196/bootblock.c +++ b/src/soc/mediatek/mt8196/bootblock.c @@ -2,8 +2,10 @@
#include <bootblock_common.h> #include <soc/mmu_operations.h> +#include <soc/wdt.h>
void bootblock_soc_init(void) { mtk_mmu_init(); + mtk_wdt_init(); } diff --git a/src/soc/mediatek/mt8196/include/soc/wdt.h b/src/soc/mediatek/mt8196/include/soc/wdt.h new file mode 100644 index 0000000..a8299fb --- /dev/null +++ b/src/soc/mediatek/mt8196/include/soc/wdt.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-only OR MIT */ + +#ifndef SOC_MEDIATEK_MT8196_WDT_H +#define SOC_MEDIATEK_MT8196_WDT_H + +#include <soc/wdt_common.h> + +#define MTK_WDT_SPM_THERMAL_VAL 1 + +DEFINE_BIT(MTK_WDT_SPM_THERMAL_EN, 0) +DEFINE_BIT(MTK_WDT_THERMAL_EN, 18) +DEFINE_BIT(MTK_WDT_THERMAL_IRQ, 18) + +#endif /* SOC_MEDIATEK_MT8196_WDT_H */ diff --git a/src/soc/mediatek/mt8196/wdt.c b/src/soc/mediatek/mt8196/wdt.c new file mode 100644 index 0000000..8b8db3b --- /dev/null +++ b/src/soc/mediatek/mt8196/wdt.c @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only OR MIT */ + +/* + * This file is created based on MT8196 Functional Specification + * Chapter number: 7.3.4.4 + */ + +#include <device/mmio.h> +#include <soc/addressmap.h> +#include <soc/wdt.h> + +#define MTK_WDT_CLR_STATUS 0x230001FF + +void mtk_wdt_clr_status(void) +{ + write32(&mtk_wdt->wdt_mode, MTK_WDT_CLR_STATUS); +}