[U-Boot] [PATCHv5 5/7] spl: zImage support in Falcon mode

Ladislav Michl
2016-01-17T03:15:03Z

Other payload than uImage is currently considered to be raw U-Boot
image. Check also for zImage in Falcon mode.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
---
arch/arm/lib/Makefile | 2 ++
arch/arm/lib/bootm.c | 32 --------------------------------
arch/arm/lib/zimage.c | 40 ++++++++++++++++++++++++++++++++++++++++
common/spl/spl.c | 23 +++++++++++++++++++++++
4 files changed, 65 insertions(+), 32 deletions(-)
create mode 100644 arch/arm/lib/zimage.c

diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index f3db7b5..07a9019 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -26,11 +26,13 @@ endif
obj-$(CONFIG_CPU_V7M) += cmd_boot.o
obj-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
obj-$(CONFIG_CMD_BOOTM) += bootm.o
+obj-$(CONFIG_CMD_BOOTM) += zimage.o
obj-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
obj-$(CONFIG_USE_ARCH_MEMSET) += memset.o
obj-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
else
obj-$(CONFIG_SPL_FRAMEWORK) += spl.o
+obj-$(CONFIG_SPL_FRAMEWORK) += zimage.o
endif
obj-$(CONFIG_SEMIHOSTING) += semihosting.o

diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index a477cae..fbfc0ad 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -348,38 +348,6 @@ int do_bootm_linux(int flag, int argc, char * const argv[],
return 0;
}

-#ifdef CONFIG_CMD_BOOTZ
-
-struct zimage_header {
- uint32_t code[9];
- uint32_t zi_magic;
- uint32_t zi_start;
- uint32_t zi_end;
-};
-
-#define LINUX_ARM_ZIMAGE_MAGIC 0x016f2818
-
-int bootz_setup(ulong image, ulong *start, ulong *end)
-{
- struct zimage_header *zi;
-
- zi = (struct zimage_header *)map_sysmem(image, 0);
- if (zi->zi_magic != LINUX_ARM_ZIMAGE_MAGIC) {
- puts("Bad Linux ARM zImage magic!\n");
- return 1;
- }
-
- *start = zi->zi_start;
- *end = zi->zi_end;
-
- printf("Kernel image @ %#08lx [ %#08lx - %#08lx ]\n", image, *start,
- *end);
-
- return 0;
-}
-
-#endif /* CONFIG_CMD_BOOTZ */
-
#if defined(CONFIG_BOOTM_VXWORKS)
void boot_prep_vxworks(bootm_headers_t *images)
{
diff --git a/arch/arm/lib/zimage.c b/arch/arm/lib/zimage.c
new file mode 100644
index 0000000..f870d72
--- /dev/null
+++ b/arch/arm/lib/zimage.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2016
+ * Ladislav Michl <ladis@linux-mips.org>
+ *
+ * bootz code:
+ * Copyright (C) 2012 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#include <common.h>
+
+#define LINUX_ARM_ZIMAGE_MAGIC 0x016f2818
+
+struct arm_z_header {
+ uint32_t code[9];
+ uint32_t zi_magic;
+ uint32_t zi_start;
+ uint32_t zi_end;
+} __attribute__ ((__packed__));
+
+int bootz_setup(ulong image, ulong *start, ulong *end)
+{
+ struct arm_z_header *zi = (struct arm_z_header *) image;
+
+ if (zi->zi_magic != LINUX_ARM_ZIMAGE_MAGIC) {
+#ifndef CONFIG_SPL_FRAMEWORK
+ puts("Bad Linux ARM zImage magic!\n");
+#endif
+ return 1;
+ }
+
+ *start = zi->zi_start;
+ *end = zi->zi_end;
+#ifndef CONFIG_SPL_FRAMEWORK
+ printf("Kernel image @ %#08lx [ %#08lx - %#08lx ]\n", image, *start,
+ *end);
+#endif
+
+ return 0;
+}
diff --git a/common/spl/spl.c b/common/spl/spl.c
index b945a48..7fd8e5d 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -52,6 +52,15 @@ __weak int spl_start_uboot(void)
puts("SPL: Direct Linux boot not active!\n");
return 1;
}
+
+/*
+ * Weak default function for arch specific zImage check. Return zero
+ * and fill start and end address if image is recognized.
+ */
+int __weak bootz_setup(ulong image, ulong *start, ulong *end)
+{
+ return 1;
+}
#endif

/*
@@ -112,6 +121,20 @@ void spl_parse_image_header(const struct image_header *header)
*/
panic("** no mkimage signature but raw image not supported");
#else
+#ifdef CONFIG_SPL_OS_BOOT
+ ulong start, end;
+
+ if (!bootz_setup((ulong)header, &start, &end)) {
+ spl_image.name = "Linux";
+ spl_image.os = IH_OS_LINUX;
+ spl_image.load_addr = CONFIG_SYS_LOAD_ADDR;
+ spl_image.entry_point = CONFIG_SYS_LOAD_ADDR;
+ spl_image.size = end - start;
+ debug("spl: payload zImage, load addr: 0x%x size: %d\n",
+ spl_image.load_addr, spl_image.size);
+ return;
+ }
+#endif
/* Signature not found - assume u-boot.bin */
debug("mkimage signature not found - ih_magic = %x\n",
header->ih_magic);
--
2.1.4