[U-Boot] [PATCH v4 22/28] riscv: qemu: support booting Linux

[Lukas Auer]

Support booting Linux (as payload of BBL) from FIT images. For this, the
default CONFIG_SYS_BOOTM_LEN is increased to 16 MB, and the environment
variables fdt_high and initrd_high are set to mark the device tree and
initrd as in-place.

Signed-off-by: Lukas Auer <lukas.auer at aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 configs/qemu-riscv32_defconfig | 1 +
 configs/qemu-riscv64_defconfig | 1 +
 include/configs/qemu-riscv.h   | 6 ++++++
 3 files changed, 8 insertions(+)

diff --git a/configs/qemu-riscv32_defconfig b/configs/qemu-riscv32_defconfig
index 72c54a3dd5..b55644378a 100644
--- a/configs/qemu-riscv32_defconfig
+++ b/configs/qemu-riscv32_defconfig
@@ -1,6 +1,7 @@
 CONFIG_RISCV=y
 CONFIG_TARGET_QEMU_VIRT=y
 CONFIG_NR_DRAM_BANKS=1
+CONFIG_FIT=y
 CONFIG_DISPLAY_CPUINFO=y
 CONFIG_DISPLAY_BOARDINFO=y
 CONFIG_OF_PRIOR_STAGE=y
diff --git a/configs/qemu-riscv64_defconfig b/configs/qemu-riscv64_defconfig
index 44766c38f6..a542ac4893 100644
--- a/configs/qemu-riscv64_defconfig
+++ b/configs/qemu-riscv64_defconfig
@@ -2,6 +2,7 @@ CONFIG_RISCV=y
 CONFIG_TARGET_QEMU_VIRT=y
 CONFIG_ARCH_RV64I=y
 CONFIG_NR_DRAM_BANKS=1
+CONFIG_FIT=y
 CONFIG_DISPLAY_CPUINFO=y
 CONFIG_DISPLAY_BOARDINFO=y
 CONFIG_OF_PRIOR_STAGE=y
diff --git a/include/configs/qemu-riscv.h b/include/configs/qemu-riscv.h
index d279c233b2..ba6a18f2e6 100644
--- a/include/configs/qemu-riscv.h
+++ b/include/configs/qemu-riscv.h
@@ -15,7 +15,13 @@
 
 #define CONFIG_SYS_MALLOC_LEN		SZ_8M
 
+#define CONFIG_SYS_BOOTM_LEN		SZ_16M
+
 /* Environment options */
 #define CONFIG_ENV_SIZE			SZ_4K
 
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"fdt_high=0xffffffffffffffff\0" \
+	"initrd_high=0xffffffffffffffff\0"
+
 #endif /* __CONFIG_H */
-- 
2.17.2