This patch adds load PDI API support to enable full/partial PDI loading
from linux. Programmable Device Image (PDI) is combination of headers,
images and bitstream files to be loaded.
Signed-off-by: Nava kishore Manne <nava.manne@xxxxxxxxxx>
---
Changes for v2:
-Updated API Doc and commit msg.
No functional changes.
Changes for v3:
-Added PDI_SRC_DDR macro in the firmware.h file.
drivers/firmware/xilinx/zynqmp.c | 17 +++++++++++++++++
include/linux/firmware/xlnx-zynqmp.h | 10 ++++++++++
2 files changed, 27 insertions(+)
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index 7eb9958662dd..9ee02655db89 100644
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -897,6 +897,23 @@ int zynqmp_pm_set_requirement(const u32 node, const u32 capabilities,
}
EXPORT_SYMBOL_GPL(zynqmp_pm_set_requirement);
+/**
+ * zynqmp_pm_load_pdi - Load and process PDI
+ * @src: Source device where PDI is located
+ * @address: PDI src address
+ *
+ * This function provides support to load PDI from linux
+ *
+ * Return: Returns status, either success or error+reason
+ */
+int zynqmp_pm_load_pdi(const u32 src, const u64 address)
+{
+ return zynqmp_pm_invoke_fn(PM_LOAD_PDI, src,
+ lower_32_bits(address),
+ upper_32_bits(address), 0, NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_load_pdi);
+
/**
* zynqmp_pm_aes - Access AES hardware to encrypt/decrypt the data using
* AES-GCM core.
diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index 2a0da841c942..3eba9d5c7640 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -52,6 +52,10 @@
#define ZYNQMP_PM_CAPABILITY_WAKEUP 0x4U
#define ZYNQMP_PM_CAPABILITY_UNUSABLE 0x8U
+/* Loader commands */
+#define PM_LOAD_PDI 0x701
+#define PDI_SRC_DDR 0xF
+
/*
* Firmware FPGA Manager flags
* XILINX_ZYNQMP_PM_FPGA_FULL: FPGA full reconfiguration
@@ -354,6 +358,7 @@ int zynqmp_pm_write_pggs(u32 index, u32 value);
int zynqmp_pm_read_pggs(u32 index, u32 *value);
int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype);
int zynqmp_pm_set_boot_health_status(u32 value);
+int zynqmp_pm_load_pdi(const u32 src, const u64 address);
#else
static inline struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void)
{
@@ -538,6 +543,11 @@ static inline int zynqmp_pm_set_boot_health_status(u32 value)
{
return -ENODEV;
}
+
+static inline int zynqmp_pm_load_pdi(const u32 src, const u64 address)
+{
+ return -ENODEV;
+}
#endif
#endif /* __FIRMWARE_ZYNQMP_H__ */
--
2.18.0
