[PATCH] riscv: Add a 64-bit image type

[Simon Glass]

At present it is not possible to know whether an image can be booted by
a 32- or 64-bit bootloader. This means that U-Boot may attempt to boot
the wrong image. This may cause a crash which might be hard to debug.

Add a new property to make this explicit.

The existing 'RISC-V' is now taken to mean 32-bit.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 boot/image.c    | 3 ++-
 include/image.h | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/boot/image.c b/boot/image.c
index 958dbf853474..3f75069695f8 100644
--- a/boot/image.c
+++ b/boot/image.c
@@ -95,7 +95,8 @@ static const table_entry_t uimage_arch[] = {
 	{	IH_ARCH_ARC,		"arc",		"ARC",		},
 	{	IH_ARCH_X86_64,		"x86_64",	"AMD x86_64",	},
 	{	IH_ARCH_XTENSA,		"xtensa",	"Xtensa",	},
-	{	IH_ARCH_RISCV,		"riscv",	"RISC-V",	},
+	{	IH_ARCH_RISCV,		"riscv",	"RISC-V 32 Bit",},
+	{	IH_ARCH_RISCV64,	"riscv64",	"RISC-V 64 Bit",},
 	{	-1,			"",		"",		},
 };
 
diff --git a/include/image.h b/include/image.h
index 7717a4c13d38..a3bdcc6e7f80 100644
--- a/include/image.h
+++ b/include/image.h
@@ -138,7 +138,8 @@ enum {
 	IH_ARCH_ARC,			/* Synopsys DesignWare ARC */
 	IH_ARCH_X86_64,			/* AMD x86_64, Intel and Via */
 	IH_ARCH_XTENSA,			/* Xtensa	*/
-	IH_ARCH_RISCV,			/* RISC-V */
+	IH_ARCH_RISCV,			/* RISC-V 32-Bit */
+	IH_ARCH_RISCV64,		/* RISC-V 64 Bit */
 
 	IH_ARCH_COUNT,
 };
-- 
2.40.0.348.gf938b09366-goog