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authorAaron Durbin <adurbin@chromium.org>2017-09-15 11:48:53 -0600
committerAaron Durbin <adurbin@chromium.org>2017-09-20 23:53:37 +0000
commit3118b6277d743100a4a0718edbfea02ddb50f625 (patch)
tree4a17492e14d077ca1024a2e55fc0ed93e769e065 /src/soc/intel/apollolake/pmutil.c
parent118a84f8f5e17fff8fb8c3f34648bfa4f8bd21e2 (diff)
downloadcoreboot-3118b6277d743100a4a0718edbfea02ddb50f625.tar.xz
soc/intel/apollolake: refactor rtc failure checking
In order to prepare for checking RTC failure in the early boot paths move the rtc failure calculation to pmutil.c and add a helper function to determine if failure occurred. BUG=b:63054105 Change-Id: I1b02028a1830ff9b28b23da7a4a1fd343f329f0d Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/21551 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/soc/intel/apollolake/pmutil.c')
-rw-r--r--src/soc/intel/apollolake/pmutil.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/pmutil.c b/src/soc/intel/apollolake/pmutil.c
index e007da9512..abf47b7782 100644
--- a/src/soc/intel/apollolake/pmutil.c
+++ b/src/soc/intel/apollolake/pmutil.c
@@ -19,6 +19,7 @@
#include <arch/acpi.h>
#include <arch/io.h>
+#include <cbmem.h>
#include <console/console.h>
#include <cpu/x86/msr.h>
#include <device/device.h>
@@ -26,6 +27,7 @@
#include <device/pci_def.h>
#include <intelblocks/msr.h>
#include <intelblocks/pmclib.h>
+#include <intelblocks/rtc.h>
#include <rules.h>
#include <soc/iomap.h>
#include <soc/cpu.h>
@@ -198,3 +200,20 @@ void enable_pm_timer_emulation(void)
msr.lo = EMULATE_PM_TMR_EN | (ACPI_BASE_ADDRESS + R_ACPI_PM1_TMR);
wrmsr(MSR_EMULATE_PM_TMR, msr);
}
+
+static int rtc_failed(uint32_t gen_pmcon1)
+{
+ return !!(gen_pmcon1 & RPS);
+}
+
+int soc_get_rtc_failed(void)
+{
+ const struct chipset_power_state *ps = cbmem_find(CBMEM_ID_POWER_STATE);
+
+ if (!ps) {
+ printk(BIOS_ERR, "Could not find power state in cbmem, RTC init aborted\n");
+ return 1;
+ }
+
+ return rtc_failed(ps->gen_pmcon1);
+}