amd/stoneyridge: Add PMxC0 reset status to boot log
Print the PMxC0 S5/Reset status bits to the console.
TEST=Inspect console for Grunt
BUG=b:110788201
Change-Id: Ia905bb325a535fd4aa7082011cdfe92f08dff2cb
Signed-off-by: Edward Hill <ecgh@chromium.org>
Reviewed-on: https://review.coreboot.org/28020
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
diff --git a/src/soc/amd/stoneyridge/southbridge.c b/src/soc/amd/stoneyridge/southbridge.c
index c4b8d04..8984c40 100644
--- a/src/soc/amd/stoneyridge/southbridge.c
+++ b/src/soc/amd/stoneyridge/southbridge.c
@@ -644,8 +644,64 @@
enable_aoac_devices();
}
+static void print_num_status_bits(int num_bits, uint32_t status,
+ const char *const bit_names[])
+{
+ int i;
+
+ if (!status)
+ return;
+
+ for (i = num_bits - 1; i >= 0; i--) {
+ if (status & (1 << i)) {
+ if (bit_names[i])
+ printk(BIOS_DEBUG, "%s ", bit_names[i]);
+ else
+ printk(BIOS_DEBUG, "BIT%d ", i);
+ }
+ }
+}
+
+static void sb_print_pmxc0_status(void)
+{
+ /* PMxC0 S5/Reset Status shows the source of previous reset. */
+ uint32_t pmxc0_status = pm_read32(PM_RST_STATUS);
+
+ static const char *const pmxc0_status_bits[] = {
+ [0] = "ThermalTrip",
+ [1] = "FourSecondPwrBtn",
+ [2] = "Shutdown",
+ [3] = "ThermalTripFromTemp",
+ [4] = "RemotePowerDownFromASF",
+ [5] = "ShutDownFan0",
+ [16] = "UserRst",
+ [17] = "SoftPciRst",
+ [18] = "DoInit",
+ [19] = "DoReset",
+ [20] = "DoFullReset",
+ [21] = "SleepReset",
+ [22] = "KbReset",
+ [23] = "LtReset",
+ [24] = "FailBootRst",
+ [25] = "WatchdogIssueReset",
+ [26] = "RemoteResetFromASF",
+ [27] = "SyncFlood",
+ [28] = "HangReset",
+ [29] = "EcWatchdogRst",
+ [31] = "BIT31",
+ };
+
+ printk(BIOS_SPEW, "PMxC0 STATUS: 0x%x ", pmxc0_status);
+ print_num_status_bits(ARRAY_SIZE(pmxc0_status_bits), pmxc0_status,
+ pmxc0_status_bits);
+ printk(BIOS_SPEW, "\n");
+}
+
/* After console init */
-void bootblock_fch_init(void) {}
+void bootblock_fch_init(void)
+{
+ sb_print_pmxc0_status();
+}
void sb_enable(device_t dev)
{
@@ -698,24 +754,6 @@
PM_ACPI_TIMER_EN_EN);
}
-static void print_num_status_bits(int num_bits, uint32_t status,
- const char *const bit_names[])
-{
- int i;
-
- if (!status)
- return;
-
- for (i = num_bits - 1; i >= 0; i--) {
- if (status & (1 << i)) {
- if (bit_names[i])
- printk(BIOS_DEBUG, "%s ", bit_names[i]);
- else
- printk(BIOS_DEBUG, "BIT%d ", i);
- }
- }
-}
-
static uint16_t reset_pm1_status(void)
{
uint16_t pm1_sts = inw(ACPI_PM1_STS);