diff options
| -rw-r--r-- | sys/mips/beri/beri_machdep.c | 26 | ||||
| -rw-r--r-- | sys/mips/include/metadata.h | 1 |
2 files changed, 25 insertions, 2 deletions
diff --git a/sys/mips/beri/beri_machdep.c b/sys/mips/beri/beri_machdep.c index f3b52c1..98fcb85a 100644 --- a/sys/mips/beri/beri_machdep.c +++ b/sys/mips/beri/beri_machdep.c @@ -45,6 +45,7 @@ __FBSDID("$FreeBSD$"); #include <sys/cpu.h> #include <sys/cons.h> #include <sys/exec.h> +#include <sys/linker.h> #include <sys/ucontext.h> #include <sys/proc.h> #include <sys/kdb.h> @@ -70,6 +71,7 @@ __FBSDID("$FreeBSD$"); #include <machine/cpuregs.h> #include <machine/hwfunc.h> #include <machine/md_var.h> +#include <machine/metadata.h> #include <machine/pmap.h> #include <machine/trap.h> @@ -135,6 +137,10 @@ platform_start(__register_t a0, __register_t a1, __register_t a2, char **argv = (char **)a1; char **envp = (char **)a2; unsigned int memsize = a3; +#ifdef FDT + vm_offset_t dtbp; + void *kmdp; +#endif int i; /* clear the BSS and SBSS segments */ @@ -146,8 +152,24 @@ platform_start(__register_t a0, __register_t a1, __register_t a2, mips_pcpu0_init(); #ifdef FDT -#ifndef FDT_DTB_STATIC -#error "mips_init with FDT requires FDT_DTB_STATIC" + /* + * Find the dtb passed in by the boot loader (currently fictional). + */ + kmdp = preload_search_by_type("elf kernel"); + if (kmdp != NULL) + dtbp = MD_FETCH(kmdp, MODINFOMD_DTBP, vm_offset_t); + else + dtbp = (vm_offset_t)NULL; + +#if defined(FDT_DTB_STATIC) + /* + * In case the device tree blob was not retrieved (from metadata) try + * to use the statically embedded one. + */ + if (dtbp == (vm_offset_t)NULL) + dtbp = (vm_offset_t)&fdt_static_dtb; +#else +#error "Non-static FDT not yet supported on BERI" #endif if (OF_install(OFW_FDT, 0) == FALSE) diff --git a/sys/mips/include/metadata.h b/sys/mips/include/metadata.h index 84e6f87..779c2f6 100644 --- a/sys/mips/include/metadata.h +++ b/sys/mips/include/metadata.h @@ -30,5 +30,6 @@ #define _MACHINE_METADATA_H_ #define MODINFOMD_SMAP 0x1001 +#define MODINFOMD_DTBP 0x1002 #endif /* !_MACHINE_METADATA_H_ */ |
