[PATCH master v2 5/7] ARM64: Rockchip: gracefully handle missing firmware

[Ahmad Fatoum]

Unlike the Rockchip BL31 images, the sdram-init.bin for Rockchip SoCs isn't
included via the regular firmware mechanism, but instead is passed as an
argument to the rkimg tool. Like done for regular firmware, have the Rockchip
image build rules handle missing firmware gracefully and update the
.missing-firmware file to list what firmware was missing.

Example of a build with CONFIG_MACH_RADXA_ROCK3, but with both firmware
files missing:

  $ find . -name *rock3a*.missing-firmware -exec grep -Hr . {} \;

  start_rock3a.pblb.missing-firmware:firmware/rk3568-bl31.bin
  start_rock3a.pblb.rkimg.missing-firmware:arch/arm/boards/radxa-rock3/sdram-init.bin
  barebox-rock3a.img.missing-firmware:arch/arm/boards/radxa-rock3/sdram-init.bin
  barebox-rock3a.img.missing-firmware:firmware/rk3568-bl31.bin

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 images/Makefile          |  2 +-
 images/Makefile.rockchip | 68 ++++++++++++++--------------------------
 2 files changed, 25 insertions(+), 45 deletions(-)

diff --git a/images/Makefile b/images/Makefile
index 9f8a9e910174..e26880de50b4 100644
--- a/images/Makefile
+++ b/images/Makefile
@@ -220,6 +220,6 @@ $(flash-list): $(image-y-path)
 
 clean-files := *.pbl *.pblb *.map start_*.imximg *.img barebox.z start_*.kwbimg \
 	start_*.kwbuartimg *.socfpgaimg *.mlo *.t20img *.t20img.cfg *.t30img \
-	*.t30img.cfg *.t124img *.t124img.cfg *.mlospi *.mlo *.mxsbs *.mxssd \
+	*.t30img.cfg *.t124img *.t124img.cfg *.mlospi *.mlo *.mxsbs *.mxssd *.rkimg \
 	start_*.simximg start_*.usimximg *.zynqimg *.image *.swapped *.missing-firmware
 clean-files += pbl.lds
diff --git a/images/Makefile.rockchip b/images/Makefile.rockchip
index 47779a7d3585..ea32af42414b 100644
--- a/images/Makefile.rockchip
+++ b/images/Makefile.rockchip
@@ -3,6 +3,24 @@
 # barebox image generation Makefile for Rockchip images
 #
 
+quiet_cmd_rkimg_image = RK-IMG $@
+      cmd_rkimg_image = $(objtree)/scripts/rkimage -o $@ $(word 2,$^) $(word 1,$^)
+
+# params: CONFIG symbol, entry point, sdram-init.bin, board identifier string
+define build_rockchip_image =
+$(eval
+ifeq ($($(strip $(1))), y)
+	pblb-y += $(strip $(2))
+	FILE_barebox-$(strip $(4)).img = $(strip $(2)).pblb.rkimg
+	image-y += barebox-$(strip $(4)).img
+
+$$(obj)/$(strip $(2)).pblb.rkimg: $$(obj)/$(strip $(2)).pblb $$(wildcard $(board)/$(strip $(3))) FORCE
+	$$(Q)$$(if $$(word 3,$$^),rm -f $$@.missing-firmware,echo arch/$(SRCARCH)/boards/$(strip $(3)) >$$@.missing-firmware)
+	$$(call if_changed,$$(if $$(word 3,$$^),rkimg_image,0size))
+endif
+)
+endef
+
 pblb-$(CONFIG_MACH_RADXA_ROCK) += start_radxa_rock
 FILE_barebox-radxa-rock.img = start_radxa_rock.pblb
 image-$(CONFIG_MACH_RADXA_ROCK) += barebox-radxa-rock.img
@@ -11,47 +29,9 @@ pblb-$(CONFIG_MACH_PHYTEC_SOM_RK3288) += start_rk3288_phycore_som
 FILE_barebox-rk3288-phycore-som.img = start_rk3288_phycore_som.pblb
 image-$(CONFIG_MACH_PHYTEC_SOM_RK3288) += barebox-rk3288-phycore-som.img
 
-pblb-$(CONFIG_MACH_RK3568_EVB) += start_rk3568_evb
-image-$(CONFIG_MACH_RK3568_EVB) += barebox-rk3568-evb.img
-
-pblb-$(CONFIG_MACH_RK3568_BPI_R2PRO) += start_rk3568_bpi_r2pro
-image-$(CONFIG_MACH_RK3568_BPI_R2PRO) += barebox-rk3568-bpi-r2pro.img
-
-pblb-$(CONFIG_MACH_PINE64_QUARTZ64) += start_quartz64a
-image-$(CONFIG_MACH_PINE64_QUARTZ64) += barebox-quartz64a.img
-
-pblb-$(CONFIG_MACH_RADXA_ROCK3) += start_rock3a
-image-$(CONFIG_MACH_RADXA_ROCK3) += barebox-rock3a.img
-
-pblb-$(CONFIG_MACH_RADXA_ROCK5) += start_rock5b
-image-$(CONFIG_MACH_RADXA_ROCK5) += barebox-rock5b.img
-
-pblb-$(CONFIG_MACH_RADXA_CM3) += start_radxa-cm3-io.img
-image-$(CONFIG_MACH_RADXA_CM3) += barebox-radxa-cm3-io.img
-
-quiet_cmd_rkimg_image = RK-IMG $@
-      cmd_rkimg_image = $(objtree)/scripts/rkimage -o $@ $(word 2,$^) $(word 1,$^)
-
-$(obj)/barebox-rk3568-evb.img: $(obj)/start_rk3568_evb.pblb \
-                $(board)/rockchip-rk3568-evb/sdram-init.bin
-	$(call if_changed,rkimg_image)
-
-$(obj)/barebox-rk3568-bpi-r2pro.img: $(obj)/start_rk3568_bpi_r2pro.pblb \
-                $(board)/rockchip-rk3568-bpi-r2pro/sdram-init.bin
-	$(call if_changed,rkimg_image)
-
-$(obj)/barebox-quartz64a.img: $(obj)/start_quartz64a.pblb \
-                $(board)/pine64-quartz64/sdram-init.bin
-	$(call if_changed,rkimg_image)
-
-$(obj)/barebox-rock3a.img: $(obj)/start_rock3a.pblb \
-                $(board)/radxa-rock3/sdram-init.bin
-	$(call if_changed,rkimg_image)
-
-$(obj)/barebox-rock5b.img: $(obj)/start_rock5b.pblb \
-                $(board)/radxa-rock5/sdram-init.bin
-	$(call if_changed,rkimg_image)
-
-$(obj)/barebox-radxa-cm3-io.img: $(obj)/start_radxa_cm3_io.pblb \
-                $(board)/radxa-cm3/sdram-init.bin
-	$(call if_changed,rkimg_image)
+$(call build_rockchip_image, CONFIG_MACH_RK3568_EVB, start_rk3568_evb, rockchip-rk3568-evb/sdram-init.bin, rk3568-evb)
+$(call build_rockchip_image, CONFIG_MACH_RK3568_BPI_R2PRO, start_rk3568_bpi_r2pro, rockchip-rk3568-bpi-r2pro/sdram-init.bin, rk3568-bpi-r2pro)
+$(call build_rockchip_image, CONFIG_MACH_PINE64_QUARTZ64, start_quartz64a, pine64-quartz64/sdram-init.bin, quartz64a)
+$(call build_rockchip_image, CONFIG_MACH_RADXA_ROCK3, start_rock3a, radxa-rock3/sdram-init.bin, rock3a)
+$(call build_rockchip_image, CONFIG_MACH_RADXA_ROCK5, start_rock5b, radxa-rock5/sdram-init.bin, rock5b)
+$(call build_rockchip_image, CONFIG_MACH_RADXA_CM3, start_radxa_cm3_io, radxa-cm3/sdram-init.bin, radxa-cm3-io)
-- 
2.39.2