From: Jolly Shah <jolly.shah@xilinx.com>
Date: Fri, 22 Mar 2019 14:21:35 +0000 (-0700)
Subject: drivers: firmware: Add Pdi load API support
X-Git-Tag: xilinx-v2019.1~94
X-Git-Url: https://rtime.felk.cvut.cz/gitweb/zynq/linux.git/commitdiff_plain/f7b1bb60649ca46372776f59f3319da3a53ec6d5

drivers: firmware: Add Pdi load API support

This patch adds load pdi api support to enable pdi/partial loading from
linux. Programmable Device Image (PDI) is combination of headers, images
and bitstream files to be loaded. Partial PDI is partial set of image/
images to be loaded.

Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index a24ba7e2d881..47cc9b5ce7c1 100644
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -679,6 +679,22 @@ static int zynqmp_pm_set_requirement(const u32 node, const u32 capabilities,
 				   qos, ack, NULL);
 }
 
+/**
+ * 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
+ */
+static 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);
+}
+
 /**
  * zynqmp_pm_fpga_load - Perform the fpga load
  * @address:	Address to write to
@@ -1219,6 +1235,7 @@ static const struct zynqmp_eemi_ops eemi_ops = {
 	.aes = zynqmp_pm_aes_engine,
 	.efuse_access = zynqmp_pm_efuse_access,
 	.secure_image = zynqmp_pm_secure_load,
+	.pdi_load = zynqmp_pm_load_pdi,
 };
 
 /**
diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index 47e2bc2d6433..48bdc7b61937 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -29,10 +29,15 @@
 
 /* SMC SIP service Call Function Identifier Prefix */
 #define PM_SIP_SVC			0xC2000000
+
+/* ATF only commands */
 #define PM_GET_TRUSTZONE_VERSION	0xa03
 #define PM_SET_SUSPEND_MODE		0xa02
 #define GET_CALLBACK_DATA		0xa01
 
+/* Loader commands */
+#define PM_LOAD_PDI			0x701
+
 /* Number of 32bits values in payload */
 #define PAYLOAD_ARG_CNT	4U
 
@@ -595,6 +600,7 @@ struct zynqmp_eemi_ops {
 	int (*aes)(const u64 address, u32 *out);
 	int (*efuse_access)(const u64 address, u32 *out);
 	int (*secure_image)(const u64 src_addr, u64 key_addr, u64 *dst);
+	int (*pdi_load)(const u32 src, const u64 address);
 };
 
 int zynqmp_pm_invoke_fn(u32 pm_api_id, u32 arg0, u32 arg1,