diff options
| author | Bo-Chen Chen <rex-bc.chen@mediatek.com> | 2022-07-04 19:46:33 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-07-06 15:21:03 +0000 |
| commit | 22d30c4faeea969c934912bfe921490bc77b2a47 (patch) | |
| tree | cbb7877b5bcb0fd4d19ed8175d60c18d74e556c6 /src/soc | |
| parent | 0e03fa3f6e474aa28a9151e5d9f152619636650c (diff) | |
soc/mediatek/mt8188: Initialize watchdog
Add watchdog support for MT8188.
This implementation is based on chapter 3.10.10 in MT8188 Functional
Specification.
TEST=build pass
BUG=b:233720142
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Change-Id: Iaf56c78d89af53d0272583b463c050e69bbeb07a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65587
Reviewed-by: Yidi Lin <yidilin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/mediatek/mt8188/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8188/bootblock.c | 2 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8188/include/soc/wdt.h | 14 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8188/wdt.c | 20 |
4 files changed, 37 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8188/Makefile.inc b/src/soc/mediatek/mt8188/Makefile.inc index 9a2ff7dc5a..2bef2e2596 100644 --- a/src/soc/mediatek/mt8188/Makefile.inc +++ b/src/soc/mediatek/mt8188/Makefile.inc @@ -6,6 +6,7 @@ all-y += ../common/uart.c 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 += emi.c diff --git a/src/soc/mediatek/mt8188/bootblock.c b/src/soc/mediatek/mt8188/bootblock.c index f48e78c309..770c6031da 100644 --- a/src/soc/mediatek/mt8188/bootblock.c +++ b/src/soc/mediatek/mt8188/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/mt8188/include/soc/wdt.h b/src/soc/mediatek/mt8188/include/soc/wdt.h new file mode 100644 index 0000000000..39d5b179f3 --- /dev/null +++ b/src/soc/mediatek/mt8188/include/soc/wdt.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef SOC_MEDIATEK_MT8188_WDT_H +#define SOC_MEDIATEK_MT8188_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, 17) +DEFINE_BIT(MTK_WDT_THERMAL_IRQ, 17) + +#endif /* SOC_MEDIATEK_MT8188_WDT_H */ diff --git a/src/soc/mediatek/mt8188/wdt.c b/src/soc/mediatek/mt8188/wdt.c new file mode 100644 index 0000000000..5218de39b8 --- /dev/null +++ b/src/soc/mediatek/mt8188/wdt.c @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* + * This file is created based on MT8188 Functional Specification + * Chapter number: 3.10.10 + */ + +#include <device/mmio.h> +#include <soc/addressmap.h> +#include <soc/wdt.h> + +#define MTK_WDT_CLR_STATUS_VAL 0x22 + +DEFINE_BITFIELD(MTK_WDT_CLR_STATUS, 31, 24) + +void mtk_wdt_clr_status(void) +{ + SET32_BITFIELDS(&mtk_wdt->wdt_mode, + MTK_WDT_CLR_STATUS, MTK_WDT_CLR_STATUS_VAL); +} |