[U-Boot] [PATCH v4 1/3] spl: add RAM boot device only if it is actually defined

[Stefan Agner <stefan@agner.ch>]

From: Stefan Agner <stefan.agner@toradex.com>

Some devices (e.g. dra7xx) support loading to RAM using DFU without
having direct boot from RAM support. Make sure the linker list
does not contain BOOT_DEVICE_RAM if CONFIG_SPL_RAM_DEVICE is not
enabled.

Fixes: 98136b2f26fa ("spl: Convert spl_ram_load_image() to use linker list")

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
---

Changes in v4:
- Use correct config CONFIG_SPL_RAM_DEVICE to descide whether to add
  BOOT_DEVICE_RAM to linker list.

Changes in v3: None
Changes in v2:
- Use CONFIG_SPL_RAM_SUPPORT to descide whether to compile the
  function in first place.

 common/spl/spl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/common/spl/spl.c b/common/spl/spl.c
index bdb165a..32b9f1e 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -220,7 +220,9 @@ static int spl_ram_load_image(struct spl_image_info *spl_image,
 
 	return 0;
 }
+#if defined(CONFIG_SPL_RAM_DEVICE)
 SPL_LOAD_IMAGE_METHOD(0, BOOT_DEVICE_RAM, spl_ram_load_image);
+#endif
 #if defined(CONFIG_SPL_DFU_SUPPORT)
 SPL_LOAD_IMAGE_METHOD(0, BOOT_DEVICE_DFU, spl_ram_load_image);
 #endif
-- 
2.10.2