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[174.138.202.16]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-502a1ef9347sm44340261cf.25.2026.01.17.11.05.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jan 2026 11:05:14 -0800 (PST) From: Raymond Mao To: u-boot@lists.denx.de Cc: uboot@riscstar.com, Raymond Mao , Rick Chen , Leo , Tom Rini , Lukasz Majewski , Heiko Schocher , Jaehoon Chung , Peng Fan , Yao Zi , Randolph Sheng-Kai Lin , Yu-Chien Peter Lin , Heinrich Schuchardt , Conor Dooley , Jamie Gibbons , Michal Simek , Eric Schikschneit , Yixun Lan , Junhui Liu , Sam Protsenko , Patrick Delaunay , Patrice Chotard , Neil Armstrong , Casey Connolly , Ilias Apalodimas , Christian Marangi , Aniket Limaye , Utsav Agarwal , Greg Malysa , Justin Swartz , Nathan Barrett-Morrison , Vasileios Bimpikas , Arturs Artamonovs , Ian Roberts , Svyatoslav Ryhel , Henrik Grimler , Quentin Schulz , Kory Maincent , Paul Barker , Justin Klaassen , Rui Miguel Silva , Marek Vasut , Samuel Holland , Gabriel Fernandez , Kever Yang , Jonas Karlman , Elaine Zhang , Joseph Chen Subject: [PATCH 04/17] reset: k1: add SPL support and enable TWSI8 reset Date: Sat, 17 Jan 2026 14:01:38 -0500 Message-Id: <20260117190231.977686-5-raymondmaoca@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260117190231.977686-1-raymondmaoca@gmail.com> References: <20260117190231.977686-1-raymondmaoca@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Sun, 18 Jan 2026 14:47:30 +0100 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean From: Raymond Mao This commit enhances the K1 reset controller driver: 1. Enable SPL support - Select CONFIG_SPL_RESET_SPACEMIT_K1 for SPL builds - Reset controller is required during early boot for proper hardware initialization sequence 2. Remove TWSI8 (I2C8) reset restriction - TWSI8 is now fully controllable by reset controller Signed-off-by: Raymond Mao --- drivers/reset/Kconfig | 7 +++++++ drivers/reset/Makefile | 2 +- drivers/reset/reset-spacemit-k1.c | 4 ---- 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig index 74c267dfc4e..1e69024ce74 100644 --- a/drivers/reset/Kconfig +++ b/drivers/reset/Kconfig @@ -252,5 +252,12 @@ config RESET_SPACEMIT_K1 Support for SPACEMIT's K1 Reset system. Basic Assert/Deassert is supported. +config SPL_RESET_SPACEMIT_K1 + bool "SPL Reset driver for Spacemit K1 SoC" + depends on SPL && RESET_SPACEMIT_K1 + default y + help + Support for reset controller on Spacemit K1 SoCs in SPL. + source "drivers/reset/stm32/Kconfig" endmenu diff --git a/drivers/reset/Makefile b/drivers/reset/Makefile index ee5b009d134..ec6893b1c45 100644 --- a/drivers/reset/Makefile +++ b/drivers/reset/Makefile @@ -33,8 +33,8 @@ obj-$(CONFIG_RESET_ZYNQMP) += reset-zynqmp.o obj-$(CONFIG_RESET_DRA7) += reset-dra7.o obj-$(CONFIG_RESET_AT91) += reset-at91.o obj-$(CONFIG_$(PHASE_)RESET_JH7110) += reset-jh7110.o +obj-$(CONFIG_$(PHASE_)RESET_SPACEMIT_K1) += reset-spacemit-k1.o obj-$(CONFIG_RESET_RZG2L_USBPHY_CTRL) += reset-rzg2l-usbphy-ctrl.o -obj-$(CONFIG_RESET_SPACEMIT_K1) += reset-spacemit-k1.o obj-$(CONFIG_ARCH_STM32) += stm32/ obj-$(CONFIG_ARCH_STM32MP) += stm32/ diff --git a/drivers/reset/reset-spacemit-k1.c b/drivers/reset/reset-spacemit-k1.c index 613e002fc4f..99dce90b4c4 100644 --- a/drivers/reset/reset-spacemit-k1.c +++ b/drivers/reset/reset-spacemit-k1.c @@ -452,10 +452,6 @@ static int spacemit_reset_update(struct reset_ctl *rst, bool assert) if (rst->id < RESET_UART1 || rst->id >= RESET_NUMBER) return 0; - /* can not write to twsi8 */ - if (rst->id == RESET_TWSI8) - return 0; - spacemit_reset_set(rst, rst->id, assert); return 0; } -- 2.25.1