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authorAchin Gupta <achin.gupta@arm.com>2013-10-26 13:10:31 +0100
committerDan Handley <dan.handley@arm.com>2013-12-05 12:28:50 +0000
commit994dfceb449a7b2fe34a1febd765cc5291172b39 (patch)
tree77d56012a55e40376ec55b69ce0133d9eb5fdfd1
parentb127cdb879aed2ced388af3cd9481e80c68f3e8c (diff)
psci: fix values of incorrectly defined constants
This patch fixes the following constant values in the psci.h: 1. The affinity level shift value in the power_state parameter of the cpu_suspend psci call. The previous value was preventing shutdown of the affinity level 1. 2. The values used for affinity state constants (ON, OFF, ON_PENDING). They did not match the values expected to be returned by the affinity_info psci api as mentioned in the spec. 3. The state id shift value in the power_state parameter of the cpu_suspend psci call. Change-Id: I62ed5eb0e9640b4aa97b93923d6630e6b877a097
-rw-r--r--docs/change-log.md3
-rw-r--r--include/psci.h12
2 files changed, 9 insertions, 6 deletions
diff --git a/docs/change-log.md b/docs/change-log.md
index 3ae5fab..73d7e7a 100644
--- a/docs/change-log.md
+++ b/docs/change-log.md
@@ -49,6 +49,9 @@ Detailed changes since last release
physically powered up to prevent a spurious wake up from a subsequent cpu
off state.
+* Definitions of some constants related to the PSCI api calls AFFINITY_INFO
+ and CPU_SUSPEND have been corrected.
+
ARM Trusted Firmware - version 0.2
==================================
diff --git a/include/psci.h b/include/psci.h
index e5eb997..70322c4 100644
--- a/include/psci.h
+++ b/include/psci.h
@@ -60,9 +60,9 @@
/*******************************************************************************
* PSCI CPU_SUSPEND 'power_state' parameter specific defines
******************************************************************************/
-#define PSTATE_ID_SHIFT 15
+#define PSTATE_ID_SHIFT 0
#define PSTATE_TYPE_SHIFT 16
-#define PSTATE_AFF_LVL_SHIFT 25
+#define PSTATE_AFF_LVL_SHIFT 24
#define PSTATE_ID_MASK 0xffff
#define PSTATE_TYPE_MASK 0x1
@@ -107,10 +107,10 @@
#define PSCI_AFF_ABSENT 0x0
#define PSCI_AFF_PRESENT 0x1
-#define PSCI_STATE_OFF 0x0
-#define PSCI_STATE_ON_PENDING 0x1
-#define PSCI_STATE_SUSPEND 0x2
-#define PSCI_STATE_ON 0x3
+#define PSCI_STATE_ON 0x0
+#define PSCI_STATE_OFF 0x1
+#define PSCI_STATE_ON_PENDING 0x2
+#define PSCI_STATE_SUSPEND 0x3
/* Number of affinity instances whose state this psci imp. can track */
#define PSCI_NUM_AFFS 32ull