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u-boot-qcom@groups.io","Subject":"[PATCH v3 07/10] mach-snapdragon: spl: Update SMEM with boot details","Date":"Thu, 16 Apr 2026 11:09:25 +0530","Message-Id":"<20260416053928.2834699-8-varadarajan.narayanan@oss.qualcomm.com>","X-Mailer":"git-send-email 2.34.1","In-Reply-To":"<20260416053928.2834699-1-varadarajan.narayanan@oss.qualcomm.com>","References":"<20260416053928.2834699-1-varadarajan.narayanan@oss.qualcomm.com>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Proofpoint-GUID":"E2dk5_JB-7QOlQYU-0HmQlZc0IMpjpS4","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDE2MDA1MSBTYWx0ZWRfX+KES2qBdEHye\n SKDtO79ASotg+AeO+xaFj3J/ZfVa7chsGqrU3lF0PTcQMXpGePrNKd9Bh6XtH3tC0IEZQ0Cmal2\n VZqrThXzV3xekCkXrYpNA6rKyUvqA2DAzC+6bdDtyCJJjebIX0A+vQuinI014ZaRgb8pUp2m4x3\n F5D3Mvvu6WKFOtMZhTyi3SFmhWQCVsTU7AvT0FSoUoOqngDg7xnM7GTSc1k6GFdYnxXEYZGJ6St\n 78CZiKmf9B90dCFiGl38+hRWTbV3jQjRw0i73UX+kKyGCRjTMHc80h/btRQUX37Uo78O+YMN+7X\n 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authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2604070000 definitions=main-2604160051","X-Mailman-Approved-At":"Thu, 16 Apr 2026 15:16:28 +0200","X-BeenThere":"u-boot@lists.denx.de","X-Mailman-Version":"2.1.39","Precedence":"list","List-Id":"U-Boot discussion ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"u-boot-bounces@lists.denx.de","Sender":"\"U-Boot\" ","X-Virus-Scanned":"clamav-milter 0.103.8 at phobos.denx.de","X-Virus-Status":"Clean"},"content":"Update SMEM with the storage medium from which the system booted.\n\nSigned-off-by: Varadarajan Narayanan \n---\nv3: Move SMEM init from previous patch to this new patch\n---\n arch/arm/mach-snapdragon/spl.c | 65 ++++++++++++++++++++++++++++++++++\n include/smem.h | 3 ++\n 2 files changed, 68 insertions(+)","diff":"diff --git a/arch/arm/mach-snapdragon/spl.c b/arch/arm/mach-snapdragon/spl.c\nindex 8cc28bbee82..82b390ba3d7 100644\n--- a/arch/arm/mach-snapdragon/spl.c\n+++ b/arch/arm/mach-snapdragon/spl.c\n@@ -11,6 +11,7 @@\n #include \n #include \n #include \n+#include \n #include \n #include \n #include \n@@ -169,6 +170,46 @@ static int qcom_spl_get_fit_img_entry_point(void *fit, int node,\n \treturn ret;\n }\n \n+#if IS_ENABLED(CONFIG_SPL_SMEM)\n+/**\n+ * qcom_spl_populate_smem() - Populate shared memory (SMEM) information.\n+ * @ctx:\tPointer to the global SPL context.\n+ *\n+ * This function initializes and populates various SMEM items with boot-related\n+ * information, such as flash type, try-mode status, and ATF enable status.\n+ * Return: 0 on success, or a negative error code on failure.\n+ */\n+static int qcom_spl_populate_smem(void *ctx)\n+{\n+\tint ret;\n+\tsize_t size;\n+\tstruct udevice *smem;\n+\tu32 *fltype;\n+\n+\tret = uclass_get_device(UCLASS_SMEM, 0, &smem);\n+\tif (ret) {\n+\t\tpr_err(\"Failed to find SMEM node (%d)\\n\", ret);\n+\t\treturn ret;\n+\t}\n+\n+\tsize = sizeof(u32);\n+\tret = smem_alloc(smem, -1, SMEM_BOOT_FLASH_TYPE, size);\n+\tif (ret) {\n+\t\tpr_err(\"Failed to alloc item: SMEM_BOOT_FLASH_TYPE (%d)\\n\", ret);\n+\t\treturn ret;\n+\t}\n+\n+\tfltype = (u32 *)smem_get(smem, -1, SMEM_BOOT_FLASH_TYPE, &size);\n+\tif (!fltype) {\n+\t\tpr_err(\"Failed to get item: SMEM_BOOT_FLASH_TYPE\\n\");\n+\t\treturn -ENOENT;\n+\t}\n+\n+\tif (IS_ENABLED(CONFIG_SPL_MMC))\n+\t\t*fltype = SMEM_BOOT_MMC_FLASH;\n+\treturn 0;\n+}\n+#endif /* IS_ENABLED(CONFIG_SPL_SMEM) */\n /**\n * qcom_spl_get_iftbl_entry_by_name() - Get an interface table entry by name.\n * @if_tbl:\tPointer to the QCLIB interface table.\n@@ -330,6 +371,30 @@ int qclib_post_process_from_spl(void)\n \treturn 0;\n }\n \n+#if IS_ENABLED(CONFIG_SPL_SMEM)\n+/**\n+ * spl_board_prepare_for_boot() - Prepare board for boot\n+ *\n+ * This function is called by SPL before jumping to the next stage.\n+ * It populates SMEM during coldboot.\n+ */\n+void spl_board_prepare_for_boot(void)\n+{\n+\tint ret;\n+\n+\t/*\n+\t * Populate SMEM in coldboot (Dload bit not set)\n+\t */\n+\tif (!QCOM_SPL_IS_DLOAD_BIT_SET) {\n+\t\tprintf(\"Populating SMEM\\n\");\n+\t\tret = qcom_spl_populate_smem(NULL);\n+\t\tif (ret) {\n+\t\t\tpr_err(\"Failed to populate SMEM (%d)\\n\", ret);\n+\t\t\tqcom_spl_error_handler(NULL);\n+\t\t}\n+\t}\n+}\n+#endif /* IS_ENABLED(CONFIG_SPL_SMEM) */\n \n /**\n * spl_get_load_buffer() - Allocate a cache-aligned buffer for image loading.\ndiff --git a/include/smem.h b/include/smem.h\nindex b19c534ebc4..f16ba7d63dc 100644\n--- a/include/smem.h\n+++ b/include/smem.h\n@@ -87,4 +87,7 @@ void *smem_get(struct udevice *dev, unsigned int host, unsigned int item, size_t\n */\n int smem_get_free_space(struct udevice *dev, unsigned int host);\n \n+#define SMEM_BOOT_FLASH_TYPE\t\t\t498\n+#define SMEM_BOOT_MMC_FLASH\t\t\t5\n+\n #endif /* _smem_h_ */\n","prefixes":["v3","07/10"]}