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siemens/mc_bdx1: Add delay to wait for legacy devices 

Like happend in commit efd0eb35af
(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>
This commit is contained in:
Werner Zeh 2017-10-10 12:35:10 +02:00 committed by Martin Roth
parent 0ccc3c49e4
commit c0d1e31617
1 changed files with 30 additions and 0 deletions
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30
src/mainboard/siemens/mc_bdx1/mainboard.c
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@ -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,