summaryrefslogtreecommitdiff
path: root/src/southbridge/intel
diff options
context:
space:
mode:
Diffstat (limited to 'src/southbridge/intel')
-rw-r--r--src/southbridge/intel/common/pmutil.c9
-rw-r--r--src/southbridge/intel/common/pmutil.h2
-rw-r--r--src/southbridge/intel/common/smi.c41
3 files changed, 26 insertions, 26 deletions
diff --git a/src/southbridge/intel/common/pmutil.c b/src/southbridge/intel/common/pmutil.c
index d0eeb04c7c..d8196f8c72 100644
--- a/src/southbridge/intel/common/pmutil.c
+++ b/src/southbridge/intel/common/pmutil.c
@@ -215,3 +215,12 @@ u16 reset_alt_gp_smi_status(void)
return reg16;
}
+
+void dump_all_status(void)
+{
+ dump_smi_status(reset_smi_status());
+ dump_pm1_status(reset_pm1_status());
+ dump_gpe0_status(reset_gpe0_status());
+ dump_alt_gp_smi_status(reset_alt_gp_smi_status());
+ dump_tco_status(reset_tco_status());
+}
diff --git a/src/southbridge/intel/common/pmutil.h b/src/southbridge/intel/common/pmutil.h
index 3f43999689..52b83dd264 100644
--- a/src/southbridge/intel/common/pmutil.h
+++ b/src/southbridge/intel/common/pmutil.h
@@ -125,6 +125,8 @@ void alt_gpi_mask(u16 clr, u16 set);
void smi_set_eos(void);
void dump_alt_gp_smi_status(u16 alt_gp_smi_sts);
u16 reset_alt_gp_smi_status(void);
+void dump_all_status(void);
+
void southbridge_smm_xhci_sleep(u8 slp_type);
void gpi_route_interrupt(u8 gpi, u8 mode);
void southbridge_gate_memory_reset(void);
diff --git a/src/southbridge/intel/common/smi.c b/src/southbridge/intel/common/smi.c
index 9bf763d75b..913cce0cfa 100644
--- a/src/southbridge/intel/common/smi.c
+++ b/src/southbridge/intel/common/smi.c
@@ -17,31 +17,30 @@ u16 get_pmbase(void)
return lpc_get_pmbase();
}
-static void smm_southbridge_enable(uint16_t pm1_events)
+static int smi_enabled(void)
{
u32 smi_en;
- u32 gpe0_en;
- if (CONFIG(ELOG))
/* Log events from chipset before clearing */
+ if (CONFIG(ELOG))
pch_log_state();
printk(BIOS_DEBUG, "Initializing southbridge SMI...");
-
printk(BIOS_SPEW, " ... pmbase = 0x%04x\n", lpc_get_pmbase());
smi_en = read_pmbase32(SMI_EN);
if (smi_en & APMC_EN) {
printk(BIOS_INFO, "SMI# handler already enabled?\n");
- return;
+ return 1;
}
-
printk(BIOS_DEBUG, "\n");
- dump_smi_status(reset_smi_status());
- dump_pm1_status(reset_pm1_status());
- dump_gpe0_status(reset_gpe0_status());
- dump_alt_gp_smi_status(reset_alt_gp_smi_status());
- dump_tco_status(reset_tco_status());
+ return 0;
+}
+
+static void smm_southbridge_enable(uint16_t pm1_events)
+{
+ u32 smi_en;
+ u32 gpe0_en;
/* Disable GPE0 PME_B0 */
gpe0_en = read_pmbase32(GPE0_EN);
@@ -73,6 +72,10 @@ static void smm_southbridge_enable(uint16_t pm1_events)
void global_smi_enable(void)
{
+ if (smi_enabled())
+ return;
+
+ dump_all_status();
smm_southbridge_enable(PWRBTN_EN | GBL_EN);
}
@@ -97,22 +100,8 @@ void smm_setup_structures(void *gnvs, void *tcg, void *smi1)
void smm_southbridge_clear_state(void)
{
- u32 smi_en;
-
- if (CONFIG(ELOG))
- /* Log events from chipset before clearing */
- pch_log_state();
-
- printk(BIOS_DEBUG, "Initializing Southbridge SMI...\n");
- printk(BIOS_SPEW, " ... pmbase = 0x%04x\n", get_pmbase());
-
- smi_en = inl(get_pmbase() + SMI_EN);
- if (smi_en & APMC_EN) {
- printk(BIOS_INFO, "SMI# handler already enabled?\n");
+ if (smi_enabled())
return;
- }
-
- printk(BIOS_DEBUG, "\n");
/* Dump and clear status registers */
reset_smi_status();