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authorWerner Zeh <werner.zeh@siemens.com>2017-10-10 12:35:10 +0200
committerMartin Roth <martinroth@google.com>2017-10-12 16:20:56 +0000
commitc0d1e31617f7aa3a93e394dbd5fe5997a914cb25 (patch)
treeff942cde14912457237be81f4d658b77ec6c7f81 /src
parent0ccc3c49e47d46b6f2ad8d93182414850284ae70 (diff)
downloadcoreboot-c0d1e31617f7aa3a93e394dbd5fe5997a914cb25.tar.xz
siemens/mc_bdx1: Add delay to wait for legacy devices
Like happend in commit efd0eb35af5e5620331d885d3140c734a6fc9098 (siemens/mc_apl1: Add delay to wait for legacy devices) add the feature to mc_bdx1 as it uses the same legacy devices. Change-Id: I355a53ce7aea70098d7bc08f24dc6a4e43d1d618 Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/21933 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Diffstat (limited to 'src')
-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,