Merge git://git.denx.de/u-boot-riscv

4 files changed, 70 insertions, 11 deletions

diff --git a/board/AndesTech/ax25-ae350/MAINTAINERS b/board/AndesTech/ax25-ae350/MAINTAINERS
index 508c6ace72..d87446ee1c 100644
--- a/board/AndesTech/ax25-ae350/MAINTAINERS
+++ b/board/AndesTech/ax25-ae350/MAINTAINERS
@@ -3,4 +3,6 @@ M:	Rick Chen <rick@andestech.com>
 S:	Maintained
 F:	board/AndesTech/ax25-ae350/
 F:	include/configs/ax25-ae350.h
+F:	configs/a25-ae350_32_defconfig
+F:	configs/ax25-ae350_64_defconfig
 F:	configs/ax25-ae350_defconfig
diff --git a/board/armltd/integrator/README b/board/armltd/integrator/README
index 5a0e934924..af9dcc1f4f 100644
--- a/board/armltd/integrator/README
+++ b/board/armltd/integrator/README
@@ -36,9 +36,7 @@ In case c) it may be necessary for U-Boot to perform CM dependent initialization
 Configuring U-Boot :
 ------------------
 	The makefile contains targets for Integrator platforms of both types
-fitted with all current variants of CM. If these targets are to be used with
-boot process c) above then CONFIG_INIT_CRITICAL may need to be defined to ensure
-that the CM is correctly configured.
+fitted with all current variants of CM.
 
 	There are also targets independent of CM. These may not be suitable for
 boot process c) above. They have been preserved for backward compatibility with
diff --git a/board/emulation/qemu-riscv/Kconfig b/board/emulation/qemu-riscv/Kconfig
index 37a80db6a9..33ca253432 100644
--- a/board/emulation/qemu-riscv/Kconfig
+++ b/board/emulation/qemu-riscv/Kconfig
@@ -29,5 +29,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	imply CMD_EXT2
 	imply CMD_EXT4
 	imply CMD_FAT
+	imply BOARD_LATE_INIT
+	imply OF_BOARD_SETUP
 
 endif
diff --git a/board/emulation/qemu-riscv/qemu-riscv.c b/board/emulation/qemu-riscv/qemu-riscv.c
index 2730a288fb..d6167aaef1 100644
--- a/board/emulation/qemu-riscv/qemu-riscv.c
+++ b/board/emulation/qemu-riscv/qemu-riscv.c
@@ -9,8 +9,6 @@
 #include <virtio_types.h>
 #include <virtio.h>
 
-#define MROM_FDT_ADDR	0x1020
-
 int board_init(void)
 {
 	/*
@@ -22,11 +20,70 @@ int board_init(void)
 	return 0;
 }
 
-void *board_fdt_blob_setup(void)
+int board_late_init(void)
 {
-	/*
-	 * QEMU loads a generated DTB for us immediately
-	 * after the reset vectors in the MROM
-	 */
-	return (void *)MROM_FDT_ADDR;
+	ulong kernel_start;
+	ofnode chosen_node;
+	int ret;
+
+	chosen_node = ofnode_path("/chosen");
+	if (!ofnode_valid(chosen_node)) {
+		debug("No chosen node found, can't get kernel start address\n");
+		return 0;
+	}
+
+#ifdef CONFIG_ARCH_RV64I
+	ret = ofnode_read_u64(chosen_node, "riscv,kernel-start",
+			      (u64 *)&kernel_start);
+#else
+	ret = ofnode_read_u32(chosen_node, "riscv,kernel-start",
+			      (u32 *)&kernel_start);
+#endif
+	if (ret) {
+		debug("Can't find kernel start address in device tree\n");
+		return 0;
+	}
+
+	env_set_hex("kernel_start", kernel_start);
+
+	return 0;
+}
+
+/*
+ * QEMU specifies the location of Linux (supplied with the -kernel argument)
+ * in the device tree using the riscv,kernel-start and riscv,kernel-end
+ * properties. We currently rely on the SBI implementation of BBL to run
+ * Linux and therefore embed Linux as payload in BBL. This causes an issue,
+ * because BBL detects the kernel properties in the device tree and ignores
+ * the Linux payload as a result. To work around this issue, we clear the
+ * kernel properties before booting Linux.
+ *
+ * This workaround can be removed, once we do not require BBL for its SBI
+ * implementation anymore.
+ */
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	int chosen_offset, ret;
+
+	chosen_offset = fdt_path_offset(blob, "/chosen");
+	if (chosen_offset < 0)
+		return 0;
+
+#ifdef CONFIG_ARCH_RV64I
+	ret = fdt_setprop_u64(blob, chosen_offset, "riscv,kernel-start", 0);
+#else
+	ret = fdt_setprop_u32(blob, chosen_offset, "riscv,kernel-start", 0);
+#endif
+	if (ret)
+		return ret;
+
+#ifdef CONFIG_ARCH_RV64I
+	ret = fdt_setprop_u64(blob, chosen_offset, "riscv,kernel-end", 0);
+#else
+	ret = fdt_setprop_u32(blob, chosen_offset, "riscv,kernel-end", 0);
+#endif
+	if (ret)
+		return ret;
+
+	return 0;
 }