1 /***********************license start***********************************
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38 ***********************license end**************************************/
39 #include <bdk.h>
40 #include "libbdk-arch/bdk-csrs-mio_tws.h"
41 #include "libbdk-boot/bdk-boot-status.h"
42 #include <libbdk-hal/bdk-config.h>
43
44 /**
45 * Report boot status to the BMC or whomever might care. This function
46 * will return quickly except for a status of "power cycle". In the power cycle
47 * case it is assumed the board is in a bad state and should not continue until
48 * a power cycle restarts us.
49 *
50 * @param status Status to report. Enumerated in bdk_boot_status_t
51 */
bdk_boot_status(bdk_boot_status_t status)52 void bdk_boot_status(bdk_boot_status_t status)
53 {
54 bdk_node_t node = bdk_numa_master();
55 int twsi = bdk_config_get_int(BDK_CONFIG_BMC_TWSI);
56
57 /* Update status */
58 if (twsi != -1)
59 {
60 BDK_CSR_DEFINE(sw_twsi, BDK_MIO_TWSX_SW_TWSI(twsi));
61 sw_twsi.u = 0;
62 sw_twsi.s.v = 1; /* Valid data */
63 sw_twsi.s.slonly = 1; /* Slave only */
64 sw_twsi.s.data = status;
65 BDK_CSR_WRITE(node, BDK_MIO_TWSX_SW_TWSI(twsi), sw_twsi.u);
66 }
67
68 /* As a special case, power cycle will display a message and try a
69 soft reset if we can't power cycle in 5 seconds */
70 if (status == BDK_BOOT_STATUS_REQUEST_POWER_CYCLE)
71 {
72 if (twsi != -1)
73 {
74 printf("Requested power cycle\n");
75 bdk_wait_usec(5000000); /* 5 sec */
76 printf("Power cycle failed, trying soft reset\n");
77 }
78 else
79 printf("Performing soft reset\n");
80 bdk_reset_chip(node);
81 }
82 }
83
84