feat(nxp/common/errata): add SoC erratum a008850
Add SoC erratum a008850 support.
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Change-Id: I1ef41c67737b7b5fdf1d892929a2d8040effc282
diff --git a/plat/nxp/common/soc_errata/errata.c b/plat/nxp/common/soc_errata/errata.c
index fb1818a..a117c91 100644
--- a/plat/nxp/common/soc_errata/errata.c
+++ b/plat/nxp/common/soc_errata/errata.c
@@ -15,6 +15,10 @@
INFO("SoC workaround for Errata A050426 was applied\n");
erratum_a050426();
#endif
+#ifdef ERRATA_SOC_A008850
+ INFO("SoC workaround for Errata A008850 Early-Phase was applied\n");
+ erratum_a008850_early();
+#endif
/*
* The following DDR Erratas workaround are implemented in DDR driver,
* but print information here.
diff --git a/plat/nxp/common/soc_errata/errata.h b/plat/nxp/common/soc_errata/errata.h
index b543b4b..ab67995 100644
--- a/plat/nxp/common/soc_errata/errata.h
+++ b/plat/nxp/common/soc_errata/errata.h
@@ -8,6 +8,8 @@
#ifndef ERRATA_H
#define ERRATA_H
+#include "errata_list.h"
+
void soc_errata(void);
#endif /* ERRATA_H */
diff --git a/plat/nxp/common/soc_errata/errata.mk b/plat/nxp/common/soc_errata/errata.mk
index 2942615..d2511bb 100644
--- a/plat/nxp/common/soc_errata/errata.mk
+++ b/plat/nxp/common/soc_errata/errata.mk
@@ -8,7 +8,8 @@
# applied.
ERRATA := \
- ERRATA_SOC_A050426
+ ERRATA_SOC_A050426 \
+ ERRATA_SOC_A008850
define enable_errata
$(1) ?= 0
diff --git a/plat/nxp/common/soc_errata/errata_a008850.c b/plat/nxp/common/soc_errata/errata_a008850.c
new file mode 100644
index 0000000..e8c0f64
--- /dev/null
+++ b/plat/nxp/common/soc_errata/errata_a008850.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+#include <cci.h>
+#include <common/debug.h>
+#include <ls_interconnect.h>
+#include <mmio.h>
+
+#include <platform_def.h>
+
+void erratum_a008850_early(void)
+{
+ /* part 1 of 2 */
+ uintptr_t cci_base = NXP_CCI_ADDR;
+ uint32_t val = mmio_read_32(cci_base + CTRL_OVERRIDE_REG);
+
+ /* enabling forced barrier termination on CCI400 */
+ mmio_write_32(cci_base + CTRL_OVERRIDE_REG,
+ (val | CCI_TERMINATE_BARRIER_TX));
+
+}
+
+void erratum_a008850_post(void)
+{
+ /* part 2 of 2 */
+ uintptr_t cci_base = NXP_CCI_ADDR;
+ uint32_t val = mmio_read_32(cci_base + CTRL_OVERRIDE_REG);
+
+ /* Clear the BARRIER_TX bit */
+ val = val & ~(CCI_TERMINATE_BARRIER_TX);
+
+ /*
+ * Disable barrier termination on CCI400, allowing
+ * barriers to propagate across CCI
+ */
+ mmio_write_32(cci_base + CTRL_OVERRIDE_REG, val);
+
+ INFO("SoC workaround for Errata A008850 Post-Phase was applied\n");
+}
diff --git a/plat/nxp/common/soc_errata/errata_list.h b/plat/nxp/common/soc_errata/errata_list.h
index 74d2315..ae95fa2 100644
--- a/plat/nxp/common/soc_errata/errata_list.h
+++ b/plat/nxp/common/soc_errata/errata_list.h
@@ -12,4 +12,9 @@
void erratum_a050426(void);
#endif
+#ifdef ERRATA_SOC_A008850
+void erratum_a008850_early(void);
+void erratum_a008850_post(void);
+#endif
+
#endif /* ERRATA_LIST_H */