* SUCH DAMAGE.
*/
+#include <libpayload-config.h>
#include <libpayload.h>
-#include <sysinfo.h>
-#include <ipchecksum.h>
#include <coreboot_tables.h>
-/* Some of this is x86 specific, and the rest of it
- is generic. Right now, since we only support x86,
- we'll avoid trying to make lots of infrastructure
- we don't need. If in the future, we want to use
- coreboot on some other architecture, then take out
- the generic parsing code and move it elsewhere
-*/
+/*
+ * Some of this is x86 specific, and the rest of it is generic. Right now,
+ * since we only support x86, we'll avoid trying to make lots of infrastructure
+ * we don't need. If in the future, we want to use coreboot on some other
+ * architecture, then take out the generic parsing code and move it elsewhere.
+ */
/* === Parsing code === */
-/* This is the generic parsing code */
+/* This is the generic parsing code. */
static void cb_parse_memory(unsigned char *ptr, struct sysinfo_t *info)
{
- struct cb_memory *mem = (struct cb_memory *) ptr;
+ struct cb_memory *mem = (struct cb_memory *)ptr;
int count = MEM_RANGE_COUNT(mem);
int i;
info->n_memranges = 0;
- for(i = 0; i < count; i++) {
- struct cb_memory_range *range =
- (struct cb_memory_range *) MEM_RANGE_PTR(mem, i);
-
+ for (i = 0; i < count; i++) {
+ struct cb_memory_range *range =
+ (struct cb_memory_range *)MEM_RANGE_PTR(mem, i);
+
if (range->type != CB_MEM_RAM)
continue;
info->memrange[info->n_memranges].base =
- UNPACK_CB64(range->start);
+ UNPACK_CB64(range->start);
info->memrange[info->n_memranges].size =
- UNPACK_CB64(range->size);
+ UNPACK_CB64(range->size);
info->n_memranges++;
}
static void cb_parse_serial(unsigned char *ptr, struct sysinfo_t *info)
{
- struct cb_serial *ser = (struct cb_serial *) ptr;
+ struct cb_serial *ser = (struct cb_serial *)ptr;
info->ser_ioport = ser->ioport;
}
+#ifdef CONFIG_NVRAM
+static void cb_parse_optiontable(unsigned char *ptr, struct sysinfo_t *info)
+{
+ info->option_table = (struct cb_cmos_option_table *)ptr;
+}
+
+static void cb_parse_checksum(unsigned char *ptr, struct sysinfo_t *info)
+{
+ struct cb_cmos_checksum *cmos_cksum = (struct cb_cmos_checksum *)ptr;
+ info->cmos_range_start = cmos_cksum->range_start;
+ info->cmos_range_end = cmos_cksum->range_end;
+ info->cmos_checksum_location = cmos_cksum->location;
+}
+#endif
+
static int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
{
struct cb_header *header;
- unsigned char *ptr = (unsigned char *) addr;
+ unsigned char *ptr = (unsigned char *)addr;
int i;
for (i = 0; i < len; i += 16, ptr += 16) {
- header = (struct cb_header *) ptr;
-
- if (!strncmp(header->signature, "LBIO", 4))
+ header = (struct cb_header *)ptr;
+ if (!strncmp((const char *)header->signature, "LBIO", 4))
break;
}
-
- /* We walked the entire space and didn't find anything */
+ /* We walked the entire space and didn't find anything. */
if (i >= len)
return -1;
if (!header->table_bytes)
return 0;
- /* Make sure the checksums match */
-
- if (ipchksum((uint16_t *) header, sizeof(*header)) != 0)
+ /* Make sure the checksums match. */
+ if (ipchksum((u16 *) header, sizeof(*header)) != 0)
return -1;
- if (ipchksum((uint16_t *) (ptr + sizeof(*header)),
- header->table_bytes) != header->table_checksum)
+ if (ipchksum((u16 *) (ptr + sizeof(*header)),
+ header->table_bytes) != header->table_checksum)
return -1;
- /* Now, walk the tables */
+ /* Now, walk the tables. */
ptr += header->header_bytes;
-
- for(i = 0; i < header->table_entries; i++) {
- struct cb_record *rec = (struct cb_record *) ptr;
- /* We only care about a few tags here - maybe
- more will be interesting later
- */
+ for (i = 0; i < header->table_entries; i++) {
+ struct cb_record *rec = (struct cb_record *)ptr;
- switch(rec->tag) {
+ /* We only care about a few tags here (maybe more later). */
+ switch (rec->tag) {
case CB_TAG_MEMORY:
cb_parse_memory(ptr, info);
break;
-
case CB_TAG_SERIAL:
cb_parse_serial(ptr, info);
break;
+#ifdef CONFIG_NVRAM
+ case CB_TAG_CMOS_OPTION_TABLE:
+ cb_parse_optiontable(ptr, info);
+ break;
+ case CB_TAG_OPTION_CHECKSUM:
+ cb_parse_checksum(ptr, info);
+ break;
+#endif
}
ptr += rec->size;
}
-
+
return 1;
}
-/* == Architecture specific ==*/
-/* This is the x86 specific stuff */
+/* == Architecture specific == */
+/* This is the x86 specific stuff. */
int get_coreboot_info(struct sysinfo_t *info)
{
- int ret = cb_parse_header((void *) 0x0, 0x1000, info);
+ int ret = cb_parse_header(phys_to_virt(0x00000000), 0x1000, info);
if (ret != 1)
- ret = cb_parse_header((void *) 0xf0000, 0x1000, info);
+ ret = cb_parse_header(phys_to_virt(0x000f0000), 0x1000, info);
return (ret == 1) ? 0 : -1;
}
projects / coreboot.git / blobdiff