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x86: Support loading kernel setup from a FIT

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Add a new setup@ section to the FIT which can be used to provide a setup
binary for booting Linux on x86. This makes it possible to boot x86 from
a FIT.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2014-10-19 21:11:24 -06:00
parent 381197788d
commit 90268b878b
9 changed files with 399 additions and 2 deletions
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13
include/image.h
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@@ -233,6 +233,7 @@ struct lmb;
#define IH_TYPE_GPIMAGE 17 /* TI Keystone GPHeader Image */
#define IH_TYPE_ATMELIMAGE 18 /* ATMEL ROM bootable Image */
#define IH_TYPE_SOCFPGAIMAGE 19 /* Altera SOCFPGA Preloader */
#define IH_TYPE_X86_SETUP 20 /* x86 setup.bin Image */
/*
* Compression Types
@@ -273,6 +274,7 @@ typedef struct image_info {
ulong image_start, image_len; /* start of image within blob, len of image */
ulong load; /* load addr for the image */
uint8_t comp, type, os; /* compression, type of image, os type */
uint8_t arch; /* CPU architecture */
} image_info_t;
/*
@@ -303,6 +305,10 @@ typedef struct bootm_headers {
void *fit_hdr_fdt; /* FDT blob FIT image header */
const char *fit_uname_fdt; /* FDT blob subimage node unit name */
int fit_noffset_fdt;/* FDT blob subimage node offset */
void *fit_hdr_setup; /* x86 setup FIT image header */
const char *fit_uname_setup; /* x86 setup subimage node name */
int fit_noffset_setup;/* x86 setup subimage node offset */
#endif
#ifndef USE_HOSTCC
@@ -417,6 +423,9 @@ enum fit_load_op {
FIT_LOAD_REQUIRED, /* Must be provided */
};
int boot_get_setup(bootm_headers_t *images, uint8_t arch, ulong *setup_start,
ulong *setup_len);
#ifndef USE_HOSTCC
/* Image format types, returned by _get_format() routine */
#define IMAGE_FORMAT_INVALID 0x00
@@ -438,6 +447,9 @@ int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
uint8_t arch, ulong *rd_start, ulong *rd_end);
#endif
int boot_get_setup_fit(bootm_headers_t *images, uint8_t arch,
ulong *setup_start, ulong *setup_len);
/**
* fit_image_load() - load an image from a FIT
*
@@ -721,6 +733,7 @@ int bootz_setup(ulong image, ulong *start, ulong *end);
#define FIT_RAMDISK_PROP "ramdisk"
#define FIT_FDT_PROP "fdt"
#define FIT_DEFAULT_PROP "default"
#define FIT_SETUP_PROP "setup"
#define FIT_MAX_HASH_LEN HASH_MAX_DIGEST_SIZE