diff options
Diffstat (limited to 'src/arch/riscv/boot.c')
| -rw-r--r-- | src/arch/riscv/boot.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/src/arch/riscv/boot.c b/src/arch/riscv/boot.c index b73f3cade4..d7233fe3da 100644 --- a/src/arch/riscv/boot.c +++ b/src/arch/riscv/boot.c @@ -15,20 +15,35 @@ #include <program_loading.h> #include <vm.h> +#include <arch/boot.h> #include <arch/encoding.h> #include <rules.h> #include <console/console.h> +/* + * A pointer to the Flattened Device Tree passed to coreboot by the boot ROM. + * Presumably this FDT is also in ROM. + * + * This pointer is only used in ramstage! + */ +const void *rom_fdt; + void arch_prog_run(struct prog *prog) { void (*doit)(void *) = prog_entry(prog); - void riscvpayload(const char *configstring, void *payload); - const char *config = NULL; + void riscvpayload(const void *fdt, void *payload); if (ENV_RAMSTAGE && prog_type(prog) == PROG_PAYLOAD) { - printk(BIOS_SPEW, "Config string: '%s'\n", config); + /* + * FIXME: This is wrong and will crash. Linux can't (in early + * boot) access memory that's before its own loading address. + * We need to copy the FDT to a place where Linux can access it. + */ + const void *fdt = rom_fdt; + + printk(BIOS_SPEW, "FDT is at %p\n", fdt); printk(BIOS_SPEW, "OK, let's go\n"); - riscvpayload(config, doit); + riscvpayload(fdt, doit); } doit(prog_entry_arg(prog)); |