1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/mach-zynqmp/firmware-zynqmp.c b/arch/arm/mach-zynqmp/firmware-zynqmp.c
index 128f042ddc..8d06c65b0e 100644
--- a/arch/arm/mach-zynqmp/firmware-zynqmp.c
+++ b/arch/arm/mach-zynqmp/firmware-zynqmp.c
@@ -503,6 +503,72 @@ static int zynqmp_pm_ioctl(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2,
 				   arg1, arg2, out);
 }
 
+/*
+ * zynqmp_pm_write_ggs() - PM API for writing global general storage (ggs)
+ * @index:	GGS register index
+ * @value:	Register value to be written
+ *
+ * This function writes value to GGS register.
+ *
+ * Return:      Returns status, either success or error+reason
+ */
+int zynqmp_pm_write_ggs(u32 index, u32 value)
+{
+	return zynqmp_pm_invoke_fn(PM_IOCTL, 0, IOCTL_WRITE_GGS,
+				   index, value, NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_write_ggs);
+
+/**
+ * zynqmp_pm_read_ggs() - PM API for reading global general storage (ggs)
+ * @index:	GGS register index
+ * @value:	Register value to be written
+ *
+ * This function returns GGS register value.
+ *
+ * Return:	Returns status, either success or error+reason
+ */
+int zynqmp_pm_read_ggs(u32 index, u32 *value)
+{
+	return zynqmp_pm_invoke_fn(PM_IOCTL, 0, IOCTL_READ_GGS,
+				   index, 0, value);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_read_ggs);
+
+/**
+ * zynqmp_pm_write_pggs() - PM API for writing persistent global general
+ *			     storage (pggs)
+ * @index:	PGGS register index
+ * @value:	Register value to be written
+ *
+ * This function writes value to PGGS register.
+ *
+ * Return:	Returns status, either success or error+reason
+ */
+int zynqmp_pm_write_pggs(u32 index, u32 value)
+{
+	return zynqmp_pm_invoke_fn(PM_IOCTL, 0, IOCTL_WRITE_PGGS, index, value,
+				   NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_write_pggs);
+
+/**
+ * zynqmp_pm_read_pggs() - PM API for reading persistent global general
+ *			     storage (pggs)
+ * @index:	PGGS register index
+ * @value:	Register value to be written
+ *
+ * This function returns PGGS register value.
+ *
+ * Return:	Returns status, either success or error+reason
+ */
+int zynqmp_pm_read_pggs(u32 index, u32 *value)
+{
+	return zynqmp_pm_invoke_fn(PM_IOCTL, 0, IOCTL_READ_PGGS, index, 0,
+				   value);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_read_pggs);
+
 /**
  * zynqmp_pm_fpga_load - Perform the fpga load
  * @address:	Address to write to