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GET /api/patches/2216418/?format=api
{ "id": 2216418, "url": "http://patchwork.ozlabs.org/api/patches/2216418/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260326115111.1631261-4-ilias.apalodimas@linaro.org/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/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, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260326115111.1631261-4-ilias.apalodimas@linaro.org>", "list_archive_url": null, "date": "2026-03-26T11:51:09", "name": "[v1,3/3] common: Allow relocations on the top of the last bank", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": false, "hash": "ed09e75fe589202860374d765c09ef0f7253fc84", "submitter": { "id": 74147, "url": "http://patchwork.ozlabs.org/api/people/74147/?format=api", "name": "Ilias Apalodimas", "email": "ilias.apalodimas@linaro.org" }, "delegate": { "id": 3651, "url": "http://patchwork.ozlabs.org/api/users/3651/?format=api", "username": "trini", "first_name": "Tom", "last_name": "Rini", "email": "trini@ti.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260326115111.1631261-4-ilias.apalodimas@linaro.org/mbox/", "series": [ { "id": 497576, "url": "http://patchwork.ozlabs.org/api/series/497576/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=497576", "date": "2026-03-26T11:51:06", "name": "Relocate U-Boot in the last bank", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497576/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2216418/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216418/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": 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c+p5nqQdWxXiOmrVrOEEymZXTHGrKtRB3EOAAqVcR9LJIIsdz1BZqov21chrN0n0V0lHTIveZ/+\n hZbBqqIZdSut8nXWqcd0P28vBJjG3QMtm7YssVQvnzEW2E9jWHfwP2iznnH2uky2l6VnJAwbDt1\n NIjVdkPo9dM523IGcpwYFAF9ybblsD1s96bSqglRlT9lqiXO69Dqa89mXyctYO", "X-Received": "by 2002:a05:600c:8b85:b0:487:12c:e7ea with SMTP id\n 5b1f17b1804b1-48722ba914dmr19132935e9.5.1774525893401;\n Thu, 26 Mar 2026 04:51:33 -0700 (PDT)", "From": "Ilias Apalodimas <ilias.apalodimas@linaro.org>", "To": "marek.vasut+renesas@mailbox.org,\n\ttrini@konsulko.com", "Cc": "Ilias Apalodimas <ilias.apalodimas@linaro.org>,\n\tu-boot@lists.denx.de", "Subject": "[PATCH v1 3/3] common: Allow relocations on the top of the last bank", "Date": "Thu, 26 Mar 2026 13:51:09 +0200", "Message-ID": "<20260326115111.1631261-4-ilias.apalodimas@linaro.org>", "X-Mailer": "git-send-email 2.51.0", "In-Reply-To": "<20260326115111.1631261-1-ilias.apalodimas@linaro.org>", "References": "<20260326115111.1631261-1-ilias.apalodimas@linaro.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "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": "Right now we only relocate u-boot to the top of the first\nmemory bank unless the board specific code overwrites it.\nThis is problematic when loading big binaries as it\nfragments the contiguous memory space for no apparent reason.\n\nIt's worth noting that there are cases where we must not relocate\nabove the 4GB boundary (e.g 64bit hardware with 32bit only capable\nDMA).\n\nAdd a Kconfig option and allow the common code to relocate U-Boot\nto the top of the last discovered bank.\n\nSigned-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>\n---\nChanges since RFC: \n- new patch\n Kconfig | 7 +++++++\n common/board_f.c | 2 ++\n 2 files changed, 9 insertions(+)", "diff": "diff --git a/Kconfig b/Kconfig\nindex ce25ea24a60f..b9144878ce0b 100644\n--- a/Kconfig\n+++ b/Kconfig\n@@ -474,6 +474,13 @@ config SKIP_RELOCATE\n \t Skips relocation of U-Boot allowing for systems that have extremely\n \t limited RAM to run U-Boot.\n \n+config RELOCATE_LAST_BANK\n+\tbool \"Relocate U-Boot to the top of the last memory bank\"\n+\thelp\n+\t When U-Boot relocates, it chooses the end of the first memory bank.\n+\t Enable this if you have multiple banks and want U-Boot to relocate\n+\t to the top of the last available bank.\n+\n endif # EXPERT\n \n config PHYS_64BIT\ndiff --git a/common/board_f.c b/common/board_f.c\nindex df2b0dc899bf..7c3fbeab17ec 100644\n--- a/common/board_f.c\n+++ b/common/board_f.c\n@@ -321,6 +321,8 @@ __weak phys_addr_t board_get_usable_ram_top(phys_size_t total_size)\n \t\t */\n \t\treturn 0;\n #endif\n+\tif (IS_ENABLED(CONFIG_RELOCATE_LAST_BANK))\n+\t\tfdtdec_setup_mem_ram_top();\n \treturn gd->ram_top;\n }\n \n", "prefixes": [ "v1", "3/3" ] }