4 /* OpenBIOS NVRAM partition */
5 struct OpenBIOS_nvpart_v1 {
8 uint16_t len; // BE, length divided by 16
12 #define OPENBIOS_PART_SYSTEM 0x70
13 #define OPENBIOS_PART_FREE 0x7f
16 OpenBIOS_finish_partition(struct OpenBIOS_nvpart_v1 *header, uint32_t size)
21 // Length divided by 16
22 header->len = cpu_to_be16(size >> 4);
25 tmpptr = (uint8_t *)header;
27 for (i = 0; i < 14; i++) {
29 sum = (sum + ((sum & 0xff00) >> 8)) & 0xff;
31 header->checksum = sum & 0xff;
34 static inline uint32_t
35 OpenBIOS_set_var(uint8_t *nvram, uint32_t addr, const char *str)
39 len = strlen(str) + 1;
40 memcpy(&nvram[addr], str, len);
45 /* Sun IDPROM structure at the end of NVRAM */
55 Sun_init_header(struct Sun_nvram *header, const uint8_t *macaddr, int machine_id)
61 header->machine_id = machine_id & 0xff;
62 memcpy(&header->macaddr, macaddr, 6);
63 /* Calculate checksum */
65 tmpptr = (uint8_t *)header;
66 for (i = 0; i < 15; i++)
69 header->checksum = tmp;
71 #endif /* FIRMWARE_ABI_H */