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-rw-r--r--src/soc/intel/cannonlake/cnl_memcfg_init.c31
1 files changed, 21 insertions, 10 deletions
diff --git a/src/soc/intel/cannonlake/cnl_memcfg_init.c b/src/soc/intel/cannonlake/cnl_memcfg_init.c
index 4ebd9978ae..d3e5e837fd 100644
--- a/src/soc/intel/cannonlake/cnl_memcfg_init.c
+++ b/src/soc/intel/cannonlake/cnl_memcfg_init.c
@@ -91,18 +91,29 @@ static void meminit_spd_data(FSP_M_CONFIG *mem_cfg, uint8_t mem_slot,
static void meminit_cbfs_spd_index(FSP_M_CONFIG *mem_cfg,
int spd_index, uint8_t mem_slot)
{
- size_t spd_data_len;
- uintptr_t spd_data_ptr;
- struct region_device spd_rdev;
+ static size_t spd_data_len;
+ static uintptr_t spd_data_ptr;
+ static int last_spd_index;
assert(mem_slot < NUM_DIMM_SLOT);
- printk(BIOS_DEBUG, "SPD INDEX = %d\n", spd_index);
- if (get_spd_cbfs_rdev(&spd_rdev, spd_index) < 0)
- die("spd.bin not found or incorrect index\n");
- spd_data_len = region_device_sz(&spd_rdev);
- /* Memory leak is ok since we have memory mapped boot media */
- assert(CONFIG(BOOT_DEVICE_MEMORY_MAPPED));
- spd_data_ptr = (uintptr_t)rdev_mmap_full(&spd_rdev);
+
+ if ((spd_data_ptr == 0) || (last_spd_index != spd_index)) {
+ struct region_device spd_rdev;
+
+ printk(BIOS_DEBUG, "SPD INDEX = %d\n", spd_index);
+
+ if (get_spd_cbfs_rdev(&spd_rdev, spd_index) < 0)
+ die("spd.bin not found or incorrect index\n");
+
+ spd_data_len = region_device_sz(&spd_rdev);
+
+ /* Memory leak is ok since we have memory mapped boot media */
+ assert(CONFIG(BOOT_DEVICE_MEMORY_MAPPED));
+
+ spd_data_ptr = (uintptr_t)rdev_mmap_full(&spd_rdev);
+ last_spd_index = spd_index;
+ }
+
meminit_spd_data(mem_cfg, mem_slot, spd_data_len, spd_data_ptr);
}