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sys/powerpc/booke/booke_machdep.c
| Context not available. | |||||
| booke_check_for_fdt(uint32_t arg1, vm_offset_t *dtbp) | booke_check_for_fdt(uint32_t arg1, vm_offset_t *dtbp) | ||||
| { | { | ||||
| void *ptr; | void *ptr; | ||||
| int fdt_size; | |||||
| if (arg1 % 8 != 0) | if (arg1 % 8 != 0) | ||||
| return (-1); | return (-1); | ||||
| Context not available. | |||||
| if (fdt_check_header(ptr) != 0) | if (fdt_check_header(ptr) != 0) | ||||
| return (-1); | return (-1); | ||||
| /* | |||||
| * Read FDT total size from the header of FDT. | |||||
| * This for sure hits within first page which is | |||||
| * already mapped. | |||||
| */ | |||||
| fdt_size = fdt_totalsize((void *)ptr); | |||||
| /* | |||||
| * Ok, arg1 points to FDT, so we need to map it in. | |||||
| * First, unmap this page and then map FDT again with full size | |||||
| */ | |||||
| pmap_early_io_unmap((vm_offset_t)ptr, PAGE_SIZE); | |||||
| ptr = (void *)pmap_early_io_map(arg1, fdt_size); | |||||
| *dtbp = (vm_offset_t)ptr; | *dtbp = (vm_offset_t)ptr; | ||||
| return (0); | return (0); | ||||
| Context not available. | |||||