From 245ad6c4adb4af5290f22acaba57ed0dd109e1f4 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 17 Jul 2020 10:46:18 +0900 Subject: [PATCH] fdt_support: call mtdparts_init() after finding MTD node to fix up Platform code can call fdt_fixup_mtdparts() in order to hand U-Boot's MTD partitions over to the Linux device tree. Currently, fdt_fixup_mtdparts() calls mtdparts_init() in its entry. If no target MTD device is found, an error message like follows is displayed: Device nand0 not found! This occurs when the same code (e.g. arch/arm/mach-uniphier/fdt-fixup.c) is shared among several boards, but not all of them support an MTD device. Parse the DT first, then call mtdparts_init() only when the target MTD node is found. Yet, you still need to call mtdparts_init() before device_find(). Signed-off-by: Masahiro Yamada Reviewed-by: Simon Glass --- common/fdt_support.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/common/fdt_support.c b/common/fdt_support.c index b010d0b552..9c84702b19 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -951,9 +951,7 @@ void fdt_fixup_mtdparts(void *blob, const struct node_info *node_info, struct mtd_device *dev; int i, idx; int noff; - - if (mtdparts_init() != 0) - return; + bool inited = false; for (i = 0; i < node_info_size; i++) { idx = 0; @@ -963,6 +961,13 @@ void fdt_fixup_mtdparts(void *blob, const struct node_info *node_info, debug("%s: %s, mtd dev type %d\n", fdt_get_name(blob, noff, 0), node_info[i].compat, node_info[i].type); + + if (!inited) { + if (mtdparts_init() != 0) + return; + inited = true; + } + dev = device_find(node_info[i].type, idx++); if (dev) { if (fdt_node_set_part_info(blob, noff, dev)) -- 2.39.5