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GET /api/1.1/patches/2223743/?format=api
{ "id": 2223743, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2223743/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260416055948.130041-3-ilias.apalodimas@linaro.org/", "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": "<20260416055948.130041-3-ilias.apalodimas@linaro.org>", "date": "2026-04-16T05:59:38", "name": "[v2,2/6] fdtdec: Introduce fdtdec_setup_mem_ram_top() to determine end of topmost DRAM bank", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "9533719ef82ddcd91d60c2af702ebf8c1276d057", "submitter": { "id": 74147, "url": "http://patchwork.ozlabs.org/api/1.1/people/74147/?format=api", "name": "Ilias Apalodimas", "email": "ilias.apalodimas@linaro.org" }, "delegate": { "id": 3651, "url": "http://patchwork.ozlabs.org/api/1.1/users/3651/?format=api", "username": "trini", "first_name": "Tom", "last_name": "Rini", "email": "trini@ti.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260416055948.130041-3-ilias.apalodimas@linaro.org/mbox/", "series": [ { "id": 500079, "url": "http://patchwork.ozlabs.org/api/1.1/series/500079/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=500079", "date": "2026-04-16T05:59:37", "name": "Relocate U-Boot in the last bank", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/500079/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2223743/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2223743/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=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=p/ZKko6y;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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This makes use of iterator\nfunction fdtdec_setup_mem_for_each_bank() introduced in previous commit.\n\nReviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>\nReviewed-by: Simon Glass <sjg@chromium.org>\nReviewed-by: Anshul Dalal <anshuld@ti.com>\nSigned-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>\nSigned-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>\n---\n include/fdtdec.h | 16 ++++++++++++++++\n lib/fdtdec.c | 18 ++++++++++++++++++\n 2 files changed, 34 insertions(+)", "diff": "diff --git a/include/fdtdec.h b/include/fdtdec.h\nindex 4e09f9d718c5..35caf4b789e8 100644\n--- a/include/fdtdec.h\n+++ b/include/fdtdec.h\n@@ -957,6 +957,22 @@ int fdtdec_setup_mem_size_base(void);\n */\n int fdtdec_setup_mem_size_base_lowest(void);\n \n+/**\n+ * fdtdec_setup_mem_ram_top() - decode and setup gd->ram_top to highest address\n+ * available in any memory bank\n+ *\n+ * Decode the /memory 'reg' property to determine the highest end of the memory\n+ * bank and populate the global data ram_top with it.\n+ *\n+ * This function should be called from a boards board_get_usable_ram_top().\n+ * This helper function allows for boards to query the device tree for topmost\n+ * DRAM address.\n+ *\n+ * Return: 0 if OK, -EINVAL if the /memory node or reg property is missing or\n+ * invalid\n+ */\n+int fdtdec_setup_mem_ram_top(void);\n+\n /**\n * fdtdec_setup_memory_banksize() - decode and populate gd->bd->bi_dram\n *\ndiff --git a/lib/fdtdec.c b/lib/fdtdec.c\nindex 9c35b08e709f..a173c4ab323d 100644\n--- a/lib/fdtdec.c\n+++ b/lib/fdtdec.c\n@@ -1166,6 +1166,24 @@ int fdtdec_setup_mem_size_base_lowest(void)\n \treturn fdtdec_setup_mem_for_each_bank(fdtdec_setup_mem_size_base_lowest_bankfn);\n }\n \n+static void fdtdec_setup_mem_ram_top_bankfn(struct resource *res, int bank)\n+{\n+\tif ((res->end + 1) > gd->ram_top)\n+\t\tgd->ram_top = res->end + 1;\n+}\n+\n+int fdtdec_setup_mem_ram_top(void)\n+{\n+\tphys_addr_t old_top = gd->ram_top;\n+\tint ret;\n+\n+\tret = fdtdec_setup_mem_for_each_bank(fdtdec_setup_mem_ram_top_bankfn);\n+\tif (ret)\n+\t\tgd->ram_top = old_top;\n+\n+\treturn ret;\n+}\n+\n static int uncompress_blob(const void *src, ulong sz_src, void **dstp)\n {\n #if CONFIG_IS_ENABLED(MULTI_DTB_FIT_GZIP) ||\\\n", "prefixes": [ "v2", "2/6" ] }