gnu: u-boot: Fix rk3399 boot from emmc.

* gnu/packages/bootloaders.scm (%u-boot-rk3399-enable-emmc-phy-patch): New
variable.
(u-boot)[origin]: Register it.
* gnu/packages/patches/u-boot-rk3399-enable-emmc-phy.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.

gnu/local.mk

@@ -1826,6 +1826,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/u-boot-rockchip-inno-usb.patch		\
   %D%/packages/patches/u-boot-sifive-prevent-reloc-initrd-fdt.patch	\
   %D%/packages/patches/u-boot-riscv64-fix-extlinux.patch	\
+  %D%/packages/patches/u-boot-rk3399-enable-emmc-phy.patch	\
   %D%/packages/patches/ucx-tcp-iface-ioctl.patch		\
   %D%/packages/patches/ungoogled-chromium-extension-search-path.patch	\
   %D%/packages/patches/ungoogled-chromium-ffmpeg-compat.patch	\

gnu/packages/bootloaders.scm

@@ -504,6 +504,12 @@ (define %u-boot-allow-disabling-openssl-patch
   ;; https://lists.denx.de/pipermail/u-boot/2021-October/462728.html
   (search-patch "u-boot-allow-disabling-openssl.patch"))
 
+(define %u-boot-rk3399-enable-emmc-phy-patch
+  ;; Fix emmc boot on rockpro64 and pinebook-pro, this was a regression
+  ;; therefore should hopefully be fixed when updating u-boot.
+  ;; https://lists.denx.de/pipermail/u-boot/2021-November/466329.html
+  (search-patch "u-boot-rk3399-enable-emmc-phy.patch"))
+
 (define u-boot
   (package
     (name "u-boot")
@@ -512,7 +518,8 @@ (define u-boot
 	      (patches
                (list %u-boot-rockchip-inno-usb-patch
                      %u-boot-allow-disabling-openssl-patch
-                     %u-boot-sifive-prevent-relocating-initrd-fdt))
+                     %u-boot-sifive-prevent-relocating-initrd-fdt
+                     %u-boot-rk3399-enable-emmc-phy-patch))
               (method url-fetch)
               (uri (string-append
                     "https://ftp.denx.de/pub/u-boot/"

gnu/packages/patches/u-boot-rk3399-enable-emmc-phy.patch

@@ -0,0 +1,26 @@
+adapting commit ac804143cf ("mmc: rockchip_sdhci: add phy and clock
+config for rk3399") to fix the issue "Not found emmc phy device".
+
+Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com>
+---
+
+ arch/arm/dts/rk3399-u-boot.dtsi | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/arch/arm/dts/rk3399-u-boot.dtsi b/arch/arm/dts/rk3399-u-boot.dtsi
+index 73922c328a..716b9a433a 100644
+--- a/arch/arm/dts/rk3399-u-boot.dtsi
++++ b/arch/arm/dts/rk3399-u-boot.dtsi
+@@ -88,6 +88,10 @@
+ 	u-boot,dm-pre-reloc;
+ };
+ 
++&emmc_phy {
++	u-boot,dm-pre-reloc;
++};
++
+ &grf {
+ 	u-boot,dm-pre-reloc;
+ };
+-- 
+2.17.1