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-rw-r--r--src/mainboard/siemens/mc_bdx1/mainboard.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/mainboard/siemens/mc_bdx1/mainboard.c b/src/mainboard/siemens/mc_bdx1/mainboard.c
index d4d84b5599..ea525d4a6c 100644
--- a/src/mainboard/siemens/mc_bdx1/mainboard.c
+++ b/src/mainboard/siemens/mc_bdx1/mainboard.c
@@ -35,6 +35,9 @@
#include <soc/pci_devs.h>
#include <soc/irq.h>
#include <soc/lpc.h>
+#include <bootstate.h>
+#include <timer.h>
+#include <timestamp.h>
#define MAX_PATH_DEPTH 12
#define MAX_NUM_MAPPINGS 10
@@ -214,6 +217,33 @@ enum cb_err mainboard_get_mac_address(struct device *dev, uint8_t mac[6])
return CB_ERR;
}
+static void wait_for_legacy_dev(void *unused)
+{
+ uint32_t legacy_delay, us_since_boot;
+ struct stopwatch sw;
+
+ /* Open main hwinfo block. */
+ if (hwilib_find_blocks("hwinfo.hex") != CB_SUCCESS)
+ return;
+
+ /* Get legacy delay parameter from hwinfo. */
+ if (hwilib_get_field(LegacyDelay, (uint8_t *) &legacy_delay,
+ sizeof(legacy_delay)) != sizeof(legacy_delay))
+ return;
+
+ us_since_boot = get_us_since_boot();
+ /* No need to wait if the time since boot is already long enough.*/
+ if (us_since_boot > legacy_delay)
+ return;
+ stopwatch_init_msecs_expire(&sw, (legacy_delay - us_since_boot) / 1000);
+ printk(BIOS_NOTICE, "Wait remaining %d of %d us for legacy devices...",
+ legacy_delay - us_since_boot, legacy_delay);
+ stopwatch_wait_until_expired(&sw);
+ printk(BIOS_NOTICE, "done!\n");
+}
+
+BOOT_STATE_INIT_ENTRY(BS_DEV_ENUMERATE, BS_ON_ENTRY, wait_for_legacy_dev, NULL);
+
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
.init = mainboard_init,