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-rw-r--r--drivers/core/Kconfig9
-rw-r--r--drivers/core/device.c28
-rw-r--r--include/config_uncmd_spl.h1
3 files changed, 25 insertions, 13 deletions
diff --git a/drivers/core/Kconfig b/drivers/core/Kconfig
index 75d182d27f7..2861b430795 100644
--- a/drivers/core/Kconfig
+++ b/drivers/core/Kconfig
@@ -46,3 +46,12 @@ config DM_STDIO
Normally serial drivers register with stdio so that they can be used
as normal output devices. In SPL we don't normally use stdio, so
we can omit this feature.
+
+config DM_SEQ_ALIAS
+ bool "Support numbered aliases in device tree"
+ depends on DM
+ default y
+ help
+ Most boards will have a '/aliases' node containing the path to
+ numbered devices (e.g. serial0 = &serial0). This feature can be
+ disabled if it is not required, to save code space in SPL.
diff --git a/drivers/core/device.c b/drivers/core/device.c
index df81b8e63d2..7f24243fd7f 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -56,21 +56,23 @@ int device_bind(struct udevice *parent, const struct driver *drv,
dev->seq = -1;
dev->req_seq = -1;
-#ifdef CONFIG_OF_CONTROL
- /*
- * Some devices, such as a SPI bus, I2C bus and serial ports are
- * numbered using aliases.
- *
- * This is just a 'requested' sequence, and will be
- * resolved (and ->seq updated) when the device is probed.
- */
- if (uc->uc_drv->flags & DM_UC_FLAG_SEQ_ALIAS) {
- if (uc->uc_drv->name && of_offset != -1) {
- fdtdec_get_alias_seq(gd->fdt_blob, uc->uc_drv->name,
- of_offset, &dev->req_seq);
+ if (IS_ENABLED(CONFIG_OF_CONTROL) && IS_ENABLED(CONFIG_DM_SEQ_ALIAS)) {
+ /*
+ * Some devices, such as a SPI bus, I2C bus and serial ports
+ * are numbered using aliases.
+ *
+ * This is just a 'requested' sequence, and will be
+ * resolved (and ->seq updated) when the device is probed.
+ */
+ if (uc->uc_drv->flags & DM_UC_FLAG_SEQ_ALIAS) {
+ if (uc->uc_drv->name && of_offset != -1) {
+ fdtdec_get_alias_seq(gd->fdt_blob,
+ uc->uc_drv->name, of_offset,
+ &dev->req_seq);
+ }
}
}
-#endif
+
if (!dev->platdata && drv->platdata_auto_alloc_size) {
dev->flags |= DM_FLAG_ALLOC_PDATA;
dev->platdata = calloc(1, drv->platdata_auto_alloc_size);
diff --git a/include/config_uncmd_spl.h b/include/config_uncmd_spl.h
index a9106f4f3b7..38cb0e8abac 100644
--- a/include/config_uncmd_spl.h
+++ b/include/config_uncmd_spl.h
@@ -31,6 +31,7 @@
#undef CONFIG_DM_WARN
#undef CONFIG_DM_DEVICE_REMOVE
+#undef CONFIG_DM_SEQ_ALIAS
#undef CONFIG_DM_STDIO
#endif /* CONFIG_SPL_BUILD */