[RAMEN9610-9153][9610] soc: samsung: acpm: Add disable PMU_DBGCORE interrupt on ACPM...

Change-Id: I6f3425912b4cf29441a952cd40f9e154a8c394c6
Signed-off-by: Youngmin Nam <youngmin.nam@samsung.com>

diff --git a/drivers/soc/samsung/acpm/acpm_ipc.c b/drivers/soc/samsung/acpm/acpm_ipc.c
index 85399028f734c1a8dfe0a06a58319eb56ee7dd66..e2d0239cb998b27d0f79411d25060026ee55a0e8 100644 (file)
--- a/drivers/soc/samsung/acpm/acpm_ipc.c
+++ b/drivers/soc/samsung/acpm/acpm_ipc.c
@@ -21,6 +21,7 @@
 #include <linux/slab.h>
 #include <linux/debug-snapshot.h>
 #include <linux/sched/clock.h>
+#include <soc/samsung/exynos-pmu.h>
 
 #include "acpm.h"
 #include "acpm_ipc.h"
@@ -577,6 +578,30 @@ int acpm_ipc_send_data_sync(unsigned int channel_id, struct ipc_config *cfg)
        return ret;
 }
 
+/* EXYNOS9610 PMU_DBGCORE */
+#define PMU_DBGCORE_INTR_ENABLE                        (0x430)
+#define PMU_DBGCORE_INTR                       (0x434)
+
+/* PMU_DBGCORE BIT FIELD */
+#define CLUSTER0_WDTRESET_ENABLE               (1 << 0)
+#define WRESET_ENABLE                          (1 << 7)
+#define INTR_ACK                               (1 << 31)
+
+void exynos9610_disable_pmu_dbg_intr(void)
+{
+       u32 reg;
+
+       /* PMU_DBGCORE interrupt disable */
+       exynos_pmu_read(PMU_DBGCORE_INTR_ENABLE, &reg);
+       reg &= ~(CLUSTER0_WDTRESET_ENABLE | WRESET_ENABLE);
+       exynos_pmu_write(PMU_DBGCORE_INTR_ENABLE, reg);
+
+       /* PMU_DBGCORE ack */
+       exynos_pmu_read(PMU_DBGCORE_INTR, &reg);
+       reg |= INTR_ACK;
+       exynos_pmu_write(PMU_DBGCORE_INTR, reg);
+}
+
 int acpm_ipc_send_data(unsigned int channel_id, struct ipc_config *cfg)
 {
        unsigned int front;
@@ -685,6 +710,9 @@ retry:
                        acpm_debug->debug_log_level = 0;
                        acpm_ramdump();
 
+                       /* To prevent WARM reset stuck, HOST-AP set ACK bit */
+                       exynos9610_disable_pmu_dbg_intr();
+
                        BUG_ON(timeout_flag);
                        return -ETIMEDOUT;
                }