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([2a02:a449:4071:0:32d0:42ff:fe10:6983]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1c32f12994sm728853666b.60.2026.07.27.23.54.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Jul 2026 23:54:14 -0700 (PDT) Message-ID: Date: Tue, 28 Jul 2026 08:54:14 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Johan Jonker Subject: [PATCH v2 03/11] rockchip: doc: add BootROM/MaskROM mode text To: u-boot@0leil.net Cc: kever.yang@rock-chips.com, sjg@chromium.org, trini@konsulko.com, u-boot@lists.u-boot-project.org References: <734d54aa-6523-4c2b-ba3a-a51b063a340e@gmail.com> Content-Language: en-US, ar-EG In-Reply-To: <734d54aa-6523-4c2b-ba3a-a51b063a340e@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1785221655; x=1785826455; darn=lists.u-boot-project.org; h=content-transfer-encoding:content-type:in-reply-to:content-language :references:cc:to:subject:from:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to:content-type; bh=1r7JpX8axK8FzHTEpX5heSIY28EisS1OGVGBHbtm8dE=; b=qXtDKLpe8+VGL5JC8wYPj0KH6qNnoPoXnYeSE2u+x8fjk2qlsthDMnUg91Oy7hCTMU UGFzjnH1PxhJGSTXIFzBVdJXnh6TU72X6QDirRTn9SAbgRwRCQCTX5wkj1tolTUhWvuC tqc5M86aiUKNmk+ZF/GZLSNX/1bsuxDDQYLCkwH8oKWpY/Y54u/lR3MieYpl2+mvDvXL rscZK4S89s5RuKwchVqN/8kV4gkq11BlIB4lsHSIcs26EpBH6GjPkRod8mdyI1wkNnsJ R1gqpnYiTtSCOSpxFH7ANylBzyidymeuKWKF6BkYnHIl/pK9YjzEqynuKRdmIKLg160a k7iA== X-Mailman-Original-Authentication-Results: smtp1.osuosl.org; dmarc=pass (p=none dis=none) header.from=gmail.com X-Mailman-Original-Authentication-Results: smtp1.osuosl.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20251104 header.b=qXtDKLpe X-BeenThere: u-boot@lists.u-boot-project.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.u-boot-project.org Sender: "U-Boot" Add text that explains how to get into BootROM/MaskROM mode. Signed-off-by: Johan Jonker --- doc/board/rockchip/rockchip.rst | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/doc/board/rockchip/rockchip.rst b/doc/board/rockchip/rockchip.rst index 718d5c6f25ba..4ebe20d81324 100644 --- a/doc/board/rockchip/rockchip.rst +++ b/doc/board/rockchip/rockchip.rst @@ -325,6 +325,21 @@ To build rk3588 boards: make evb-rk3588_defconfig make CROSS_COMPILE=aarch64-linux-gnu- +BootROM/MaskROM mode +-------------------- + +Options to get your board into BootROM mode: + +* Holding the recovery button when you boot the board. +* Remove the SD card. +* Erase the NAND, MMC or SPI chip part where the BootROM blocks are located. + +Methods of last resort (USE AT YOUR OWN RISK): + +* NAND: connect pin 8 and 9 of the NAND flash with a needle while + reconnecting to the USB OTG port to a PC. +* EMMC: short the clock line to ground while reconnecting to the USB OTG port to a PC. + Flashing -------- -- 2.39.5