Add CONFIG_REBOOT to set fdt_addr

This is needed for PXE/extlinux boot to find FDT (Device Tree Blob)
otherwise we don't boot. Also configure fdt command with FDT address
so we could use it out-of-the-box in U-Boot prompt.

Signed-off-by: David Abdurachmanov <david.abdurachmanov@gmail.com>

u-boot-2019.04-rc4-riscv-bootz-fat.patch

@@ -1,10 +0,0 @@
-diff --git a/configs/qemu-riscv64_smode_defconfig b/configs/qemu-riscv64_smode_defconfig
-index b012443..0ccc933 100644
---- a/configs/qemu-riscv64_smode_defconfig
-+++ b/configs/qemu-riscv64_smode_defconfig
-@@ -9,3 +9,5 @@ CONFIG_DISPLAY_CPUINFO=y
- CONFIG_DISPLAY_BOARDINFO=y
- # CONFIG_CMD_MII is not set
- CONFIG_OF_PRIOR_STAGE=y
-+CONFIG_CMD_BOOTZ=y
-+CONFIG_CMD_FAT=y

u-boot-2019.04-rc4-riscv.patch

@@ -0,0 +1,13 @@
+diff --git a/include/configs/qemu-riscv.h b/include/configs/qemu-riscv.h
+index 2588c5a..0a3b098 100644
+--- a/include/configs/qemu-riscv.h
++++ b/include/configs/qemu-riscv.h
+@@ -48,4 +48,8 @@
+ 	"ramdisk_addr_r=0x82300000\0" \
+ 	BOOTENV
+ 
++#define CONFIG_PREBOOT \
++	"setenv fdt_addr ${fdtcontroladdr};" \
++	"fdt addr ${fdtcontroladdr};"
++
+ #endif /* __CONFIG_H */

uboot-tools.spec

@@ -2,7 +2,7 @@
 
 Name:      uboot-tools
 Version:   2019.04
-Release:   0.6%{?candidate:.%{candidate}}.1.riscv64%{?dist}
+Release:   0.6%{?candidate:.%{candidate}}.2.riscv64%{?dist}
 Summary:   U-Boot utilities
 License:   GPLv2+ BSD LGPL-2.1+ LGPL-2.0+
 URL:       http://www.denx.de/wiki/U-Boot
@@ -31,7 +31,7 @@ Patch13:   tegra-p2371-2180-Build-position-independent-binary.patch
 Patch14:   net-eth-uclass-Write-MAC-address-to-hardware-after-probe.patch
 
 # RISC-V (riscv64)
-Patch30:   u-boot-2019.04-rc4-riscv-bootz-fat.patch
+Patch30:   u-boot-2019.04-rc4-riscv.patch
 
 BuildRequires:  bc
 BuildRequires:  dtc
@@ -352,6 +352,10 @@ cp -p board/warp7/README builds/docs/README.warp7
 %endif
 
 %changelog
+* Sat Mar 30 2019 David Abdurachmanov <david.abdurachmanov@gmail.com> 2019.04-0.6-rc4.2.riscv64
+- Disable bootz (not supported)
+- Add CONFIG_PREBOOT for qemu-riscv to set fdt_addr for extlinux boot
+
 * Tue Mar 26 2019 David Abdurachmanov <david.abdurachmanov@gmail.com> 2019.04-0.6-rc4.1.riscv64
 - Enable bootz and FAT fs commands for qemu-riscv64_smode