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| author | stefan <stefan@s00.xyz> | 2023-04-08 20:42:18 -0400 |
|---|---|---|
| committer | stefan <stefan@s00.xyz> | 2023-04-08 20:42:18 -0400 |
| commit | 1aac36f788834699b6891aea7a83eb950bd5e8f6 (patch) | |
| tree | 18e0a6c26b83e71c101193e60149f49b1641daf0 /sys/dev/fdt | |
| parent | a1a97aa7b2b0c3d1f3b6766446d605f83de1c561 (diff) | |
| download | sv-1aac36f788834699b6891aea7a83eb950bd5e8f6.tar.gz | |
no idea whot i changed lol
Diffstat (limited to 'sys/dev/fdt')
| -rw-r--r-- | sys/dev/fdt/fdt.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/sys/dev/fdt/fdt.c b/sys/dev/fdt/fdt.c new file mode 100644 index 0000000..4b132e2 --- /dev/null +++ b/sys/dev/fdt/fdt.c @@ -0,0 +1,28 @@ +#include <fdt.h> +#include <sbi.h> +#include <printf.h> +#include <stdint.h> + +void +fdt_walk(struct fdt_header *header) +{ + if (fdt_uint32(header->magic) != FDT_HEADER_MAGIC) { + printf("corrupted or invalid fdt"); + } + printf("parsing fdt @%p...\n", header); + printf("header->totalsize: %d\n", fdt_uint32(header->totalsize)); + printf("header->off_dt_struct: %d\n", fdt_uint32(header->off_dt_struct)); + printf("header->off_dt_strings: %d\n", fdt_uint32(header->off_dt_strings)); + printf("header->off_mem_rsvmap: %d\n", fdt_uint32(header->off_mem_rsvmap)); + printf("header->version: %d\n", fdt_uint32(header->version)); + printf("header->last_comp_version: %d\n", fdt_uint32(header->last_comp_version)); + printf("header->boot_cpuid_phys: %d\n", fdt_uint32(header->boot_cpuid_phys)); + printf("header->size_dt_strings: %d\n", fdt_uint32(header->size_dt_strings)); + printf("header->size_dt_struct: %d\n", fdt_uint32(header->size_dt_struct)); + + uint8_t *dts = header + fdt_uint32(header->off_dt_struct) + sizeof(uint32_t); + uint8_t *dtstr = header + fdt_uint32(header->off_dt_strings); + printf("parsing dt struct @%p...\n", dts); + printf(dts); +} + |