[PATCH v3 1/4] Makefile: Drop to handle rkspi image type

[Jagan Teki <jagan-dyjBcgdgk7Pe9wHmmfpqLFaTQe2KTcn/@public.gmane.org>]

On rockchip platforms, SPI boot image creation is not
straightforward like MMC boot image creation where former
requires to specify tpl, spl in multimage format in mkimage,
and later simply do a concatenate mkimaged-tpl with spl.

On this note, let drop rkspi image type creation via kbuild
and let inform via rockchip.rst

Signed-off-by: Jagan Teki <jagan-dyjBcgdgk7Pe9wHmmfpqLFaTQe2KTcn/@public.gmane.org>
Reviewed-by: Kever Yang <kever.yang-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
---
Changes for v3:
- none

 Makefile | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/Makefile b/Makefile
index 3851dd9fa0..db3b6b9991 100644
--- a/Makefile
+++ b/Makefile
@@ -1438,22 +1438,15 @@ u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
 
 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
 
-# rockchip image type
-ifeq ($(CONFIG_SPL_SPI_LOAD),y)
-ROCKCHIP_IMG_TYPE := rkspi
-else
-ROCKCHIP_IMG_TYPE := rksd
-endif
-
 # TPL + SPL
 ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy)
-MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T $(ROCKCHIP_IMG_TYPE)
+MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd
 tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE
 	$(call if_changed,mkimage)
 idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE
 	$(call if_changed,cat)
 else
-MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T $(ROCKCHIP_IMG_TYPE)
+MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd
 idbloader.img: spl/u-boot-spl.bin FORCE
 	$(call if_changed,mkimage)
 endif
-- 
2.25.1