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([2a02:a449:4071:0:32d0:42ff:fe10:6983]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1fa851b6adsm68323666b.11.2026.07.30.06.33.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 30 Jul 2026 06:33:31 -0700 (PDT) Message-ID: <88612ac4-7c1d-4e4b-b297-a2f96ab17a3f@gmail.com> Date: Thu, 30 Jul 2026 15:33:30 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Johan Jonker Subject: [PATCH v3 03/12] rockchip: doc: add BootROM 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, eddie.cai.linux@gmail.com References: <5aed2a27-bd7d-4b71-a6c1-0b46b41f3462@gmail.com> Content-Language: en-US, ar-EG In-Reply-To: <5aed2a27-bd7d-4b71-a6c1-0b46b41f3462@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=1785418412; x=1786023212; 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=iV7C1PHOA1eUgQOIB8fkWfjUgYMhnuaVBvVbcTClvAY=; b=pyp5IXbWf06VkNrc2fbbiTLeEeAJj/GgGEp0wdGY1taoF0LmTz/bu+Z3ZoQnFS/A85 JmFiAqN/StZJROyziEthydgDByVpLGPMTxmn287SNKr+SJqSJ04yiO2GYw5SXlkSO9Lo KarBZpk1igFo+WGhMXk0+mJ0T6zyiO3ydack4+8KH8jJmSqaefPmnpx/Zk1V38iB1MJI 3+BqqVGzeyE88FNBjSf4lClKT6bfAHQyb7FW3tAkxTSXLvFlXMjE+v8IKYN2VHdySo+q AjApVayGCNlcMTb25Fn07zBlZfXlhGWQwtbCH4pr6C7C7CDQKqLkHHvfTklEufULeqOX 1olg== X-Mailman-Original-Authentication-Results: smtp2.osuosl.org; dmarc=pass (p=none dis=none) header.from=gmail.com X-Mailman-Original-Authentication-Results: smtp2.osuosl.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20251104 header.b=pyp5IXbW 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 mode. Signed-off-by: Johan Jonker --- Changed V3: remove MaskROM reword connect use eMMC wrap --- doc/board/rockchip/rockchip.rst | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/doc/board/rockchip/rockchip.rst b/doc/board/rockchip/rockchip.rst index 5144cbccef78..fab1af73b22a 100644 --- a/doc/board/rockchip/rockchip.rst +++ b/doc/board/rockchip/rockchip.rst @@ -325,6 +325,22 @@ To build rk3588 boards: make evb-rk3588_defconfig make CROSS_COMPILE=aarch64-linux-gnu- +BootROM 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, eMMC 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: connect the clock line to ground while + reconnecting to the USB OTG port to a PC. + Flashing -------- -- 2.39.5