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GET /api/1.1/patches/2228830/?format=api
{ "id": 2228830, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2228830/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260427-rk3576-usb-gadget-v1-1-982fd1de08db@flipper.net/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/1.1/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260427-rk3576-usb-gadget-v1-1-982fd1de08db@flipper.net>", "date": "2026-04-27T12:53:22", "name": "rockchip: rk3576: Properly handle USB controller takeover from BootROM", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "223da595ef91373dcf7d4c93bda3b8d8da5a70ce", "submitter": { "id": 92845, "url": "http://patchwork.ozlabs.org/api/1.1/people/92845/?format=api", "name": "Alexey Charkov", "email": "alchark@flipper.net" }, "delegate": { "id": 93623, "url": "http://patchwork.ozlabs.org/api/1.1/users/93623/?format=api", "username": "kevery", "first_name": "Kever", "last_name": "Yang", "email": "ykai007@gmail.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260427-rk3576-usb-gadget-v1-1-982fd1de08db@flipper.net/mbox/", "series": [ { "id": 501643, "url": "http://patchwork.ozlabs.org/api/1.1/series/501643/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=501643", "date": "2026-04-27T12:53:22", "name": "rockchip: rk3576: Properly handle USB controller takeover from BootROM", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/501643/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2228830/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2228830/checks/", "tags": {}, "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=flipper.net header.i=@flipper.net header.a=rsa-sha256\n header.s=google header.b=mldP7OtF;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=85.214.62.61; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260427-rk3576-usb-gadget-v1-1-982fd1de08db@flipper.net>", "X-B4-Tracking": "v=1; b=H4sIAEFc72kC/x3MQQ5AMBBA0avIrE1SQytcRSzQaU0kSItIxN01l\n m/x/wORg3CENnsg8CVRtjWhyDOY5mH1jGKTgRQZVVGNYSl1bfCMI/rBej6wcUZpamxZEEPq9sB\n O7v/Z9e/7AcxX/jVjAAAA", "X-Change-ID": "20260427-rk3576-usb-gadget-9f60529d312e", "To": "u-boot@lists.denx.de", "Cc": "Tom Rini <trini@konsulko.com>, Simon Glass <sjg@chromium.org>,\n Philipp Tomsich <philipp.tomsich@vrull.eu>,\n Kever Yang <kever.yang@rock-chips.com>, Jonas Karlman <jonas@kwiboo.se>,\n Anton Burticica <mouse@ya.ru>, Alexey Charkov <alchark@flipper.net>", "X-Mailer": "b4 0.14.3", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=2259; i=alchark@flipper.net;\n h=from:subject:message-id; bh=x5QZoKCT7SF4HRdQNrsHLyrK41+s/8Dz9gNQg9SVD8Y=;\n b=owGbwMvMwCW2adGNfoHIK0sZT6slMWS+jwn4VXC/KNSw8+GnOKFK/nbj0GnHo/vdpfqOJ2ibe\n Wc+dTvXMZGFQYyLwVJMkWXutyW2U434Zu3y8PgKM4eVCWSItEgDAxCwMPDlJuaVGukY6ZlqG+oZ\n GukY6xgxcHEKwFT/cWb4H8Q+I2vLvFdF3xYLyc7hKHupn2FW13UiInT1/fBY9f9czgz/NN7MnB5\n eM0nmi30Rx2728/MMrs/OXFnFyy0r+ld7r1QHHwA=", "X-Developer-Key": "i=alchark@flipper.net; a=openpgp;\n fpr=9DF6A43D95320E9ABA4848F5B2A2D88F1059D4A5", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "From: Anton Burticica <mouse@ya.ru>\n\nWhen booting via USB download mode (Maskrom), the BootROM leaves the\nUSB3OTG0 controller in an active state. U-Boot must properly reset\nthe controller before reinitializing it for fastboot or other USB\ngadget functions.\n\nWithout this change, USB gadget mode commands such as fastboot and ums\nfail when U-Boot is loaded via Maskrom USB download because the\ncontroller state is inconsistent.\n\nSigned-off-by: Anton Burticica <mouse@ya.ru>\n[Removed unrelated changes, adjusted the commit description]\nSigned-off-by: Alexey Charkov <alchark@flipper.net>\n---\n arch/arm/mach-rockchip/rk3576/rk3576.c | 18 ++++++++++++++++++\n 1 file changed, 18 insertions(+)\n\n\n---\nbase-commit: 9f61fd5b80a43ae20ba115e3a2933d47d720ab82\nchange-id: 20260427-rk3576-usb-gadget-9f60529d312e\n\nBest regards,", "diff": "diff --git a/arch/arm/mach-rockchip/rk3576/rk3576.c b/arch/arm/mach-rockchip/rk3576/rk3576.c\nindex c17ba418ced5..84618ad5acb7 100644\n--- a/arch/arm/mach-rockchip/rk3576/rk3576.c\n+++ b/arch/arm/mach-rockchip/rk3576/rk3576.c\n@@ -7,6 +7,8 @@\n \n #include <dm.h>\n #include <misc.h>\n+#include <linux/bitops.h>\n+#include <linux/delay.h>\n #include <asm/armv8/mmu.h>\n #include <asm/arch-rockchip/bootrom.h>\n #include <asm/arch-rockchip/hardware.h>\n@@ -39,6 +41,10 @@\n #define USB_GRF_BASE\t\t0x2601E000\n #define USB3OTG0_CON1\t\t0x0030\n \n+#define TOP_CRU_BASE\t\t0x27200000\n+#define TOP_CRU_SOFTRST_CON47\t0x0abc\n+#define SOFTRST47_ARESETN_USB3OTG0\tBIT(5)\n+\n enum {\n \tBROM_BOOTSOURCE_FSPI0 = 3,\n \tBROM_BOOTSOURCE_FSPI1_M1 = 6,\n@@ -189,6 +195,18 @@ int arch_cpu_init(void)\n \t */\n \twritel(0xffffff00, SYS_SGRF_BASE + SYS_SGRF_SOC_CON20);\n \n+\t/* If the controller was left running by the boot ROM, reset it */\n+\tif (read_brom_bootsource_id() == BROM_BOOTSOURCE_USB) {\n+\t\t/* Assert USB3OTG0 reset */\n+\t\twritel(RK_SETBITS(SOFTRST47_ARESETN_USB3OTG0),\n+\t\t TOP_CRU_BASE + TOP_CRU_SOFTRST_CON47);\n+\t\tudelay(1000);\n+\t\t/* De-assert USB3OTG0 reset */\n+\t\twritel(RK_CLRBITS(SOFTRST47_ARESETN_USB3OTG0),\n+\t\t TOP_CRU_BASE + TOP_CRU_SOFTRST_CON47);\n+\t\tudelay(1000);\n+\t}\n+\n \t/* Disable USB3OTG0 U3 port, later enabled by USBDP PHY driver */\n \twritel(0xffff0188, USB_GRF_BASE + USB3OTG0_CON1);\n \n", "prefixes": [] }