summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/x86/cpu/coreboot/sdram.c38
1 files changed, 37 insertions, 1 deletions
diff --git a/arch/x86/cpu/coreboot/sdram.c b/arch/x86/cpu/coreboot/sdram.c
index b56085a..f8fdac6 100644
--- a/arch/x86/cpu/coreboot/sdram.c
+++ b/arch/x86/cpu/coreboot/sdram.c
@@ -23,13 +23,49 @@
*/
#include <common.h>
+#include <malloc.h>
+#include <asm/e820.h>
#include <asm/u-boot-x86.h>
+#include <asm/global_data.h>
+#include <asm/arch-coreboot/sysinfo.h>
+#include <asm/arch-coreboot/tables.h>
DECLARE_GLOBAL_DATA_PTR;
+unsigned install_e820_map(unsigned max_entries, struct e820entry *entries)
+{
+ int i;
+
+ unsigned num_entries = min(lib_sysinfo.n_memranges, max_entries);
+ if (num_entries < lib_sysinfo.n_memranges) {
+ printf("Warning: Limiting e820 map to %d entries.\n",
+ num_entries);
+ }
+ for (i = 0; i < num_entries; i++) {
+ struct memrange *memrange = &lib_sysinfo.memrange[i];
+
+ entries[i].addr = memrange->base;
+ entries[i].size = memrange->size;
+ entries[i].type = memrange->type;
+ }
+ return num_entries;
+}
+
int dram_init_f(void)
{
- gd->ram_size = 64*1024*1024;
+ int i;
+ phys_size_t ram_size = 0;
+
+ for (i = 0; i < lib_sysinfo.n_memranges; i++) {
+ struct memrange *memrange = &lib_sysinfo.memrange[i];
+ unsigned long long end = memrange->base + memrange->size;
+
+ if (memrange->type == CB_MEM_RAM && end > ram_size)
+ ram_size = end;
+ }
+ gd->ram_size = ram_size;
+ if (ram_size == 0)
+ return -1;
return 0;
}