1 files changed, 61 insertions, 0 deletions
diff --git a/src/import/chips/p9/procedures/hwp/memory/lib/workarounds/ccs_workarounds.H b/src/import/chips/p9/procedures/hwp/memory/lib/workarounds/ccs_workarounds.H
index e85c8ea44..c39187b37 100644
--- a/src/import/chips/p9/procedures/hwp/memory/lib/workarounds/ccs_workarounds.H
+++ b/src/import/chips/p9/procedures/hwp/memory/lib/workarounds/ccs_workarounds.H
@@ -22,3 +22,64 @@
 /* permissions and limitations under the License.                         */
 /*                                                                        */
 /* IBM_PROLOG_END_TAG                                                     */
+
+///
+/// @file ccs_workarounds.H
+/// @brief Contains CCS workarounds
+///
+// *HWP HWP Owner: Stephen Glancy <sglancy@us.ibm.com>
+// *HWP HWP Backup: Louis Stermole <stermole@us.ibm.com>
+// *HWP Team: Memory
+// *HWP Level: 3
+// *HWP Consumed by: FSP:HB Memory Lab
+
+#ifndef _CCS_WORKAROUNDS_H
+#define _CCS_WORKAROUNDS_H
+
+#include <fapi2.H>
+#include <p9_mc_scom_addresses.H>
+
+#include <generic/memory/lib/utils/c_str.H>
+#include <generic/memory/lib/utils/find.H>
+#include <lib/ccs/ccs.H>
+
+namespace mss
+{
+
+namespace ccs
+{
+
+namespace workarounds
+{
+
+///
+/// @brief Issues the PDA exit command
+/// @param[in] i_target - the DIMM target on which to operate
+/// @param[in] i_rank - the rank on which to operate
+/// @param[in,out] io_program - the CCS program
+/// @return fapi2::ReturnCode - SUCCESS iff everything executes successfully
+/// @note The PHY traps both the a-side and b-side MRS's into the same shadow register
+/// After the a-side MRS exits PDA, the b-side MRS will not be taken out of PDA mode
+/// To workaround this problem, a-side MRS is issued, then the shadow register is modified to have PDA mode enabled
+/// Then the b-side MRS is issued
+///
+fapi2::ReturnCode exit( const fapi2::Target<fapi2::TARGET_TYPE_DIMM>& i_target,
+                        const uint64_t i_rank,
+                        ccs::program<fapi2::TARGET_TYPE_MCBIST>& io_program );
+
+///
+/// @brief Re-enables PDA mode on a given rank in the shadow registers
+/// @param[in] i_target - the MCA target on which to operate
+/// @param[in] i_rank - the rank on which to operate
+/// @return fapi2::ReturnCode - SUCCESS iff everything executes successfully
+///
+fapi2::ReturnCode enable_pda_shadow_reg( const fapi2::Target<fapi2::TARGET_TYPE_MCA>& i_target,
+        const uint64_t i_rank );
+
+} // ns workarounds
+
+} // ns ccs
+
+} // ns mss
+
+#endif