[PATCH 1/4] xilinx: firmware: Introduce zynqmp_pmufw_node() for loading PMU fragments

[Michal Simek]

Introduce zynqmp_pmufw_node() for loading PMU configuration fragment for
enabling IPs. Firmware driver has small overlay where NODE id is added and
config fragment is sent to PMUFW. There is a need to build PMUFW with
fragment support.

Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 drivers/firmware/firmware-zynqmp.c | 32 ++++++++++++++++++++++++++++++
 include/zynqmp_firmware.h          |  1 +
 2 files changed, 33 insertions(+)

diff --git a/drivers/firmware/firmware-zynqmp.c b/drivers/firmware/firmware-zynqmp.c
index 342dbc13dfdf..10240ddccd3b 100644
--- a/drivers/firmware/firmware-zynqmp.c
+++ b/drivers/firmware/firmware-zynqmp.c
@@ -27,6 +27,38 @@ struct zynqmp_power {
 	struct mbox_chan rx_chan;
 } zynqmp_power;
 
+#define NODE_ID_LOCATION	5
+
+static unsigned int xpm_configobject[] = {
+	/**********************************************************************/
+	/* HEADER */
+	2,	/* Number of remaining words in the header */
+	1,	/* Number of sections included in config object */
+	PM_CONFIG_OBJECT_TYPE_OVERLAY,	/* Type of Config object as overlay */
+	/**********************************************************************/
+	/* SLAVE SECTION */
+
+	PM_CONFIG_SLAVE_SECTION_ID,	/* Section ID */
+	1,				/* Number of slaves */
+
+	0, /* Node ID which will be changed below */
+	PM_SLAVE_FLAG_IS_SHAREABLE,
+	PM_CONFIG_IPI_PSU_CORTEXA53_0_MASK |
+	PM_CONFIG_IPI_PSU_CORTEXR5_0_MASK |
+	PM_CONFIG_IPI_PSU_CORTEXR5_1_MASK, /* IPI Mask */
+};
+
+int zynqmp_pmufw_node(u32 id)
+{
+	/* Record power domain id */
+	xpm_configobject[NODE_ID_LOCATION] = id;
+
+	zynqmp_pmufw_load_config_object(xpm_configobject,
+					sizeof(xpm_configobject));
+
+	return 0;
+}
+
 static int ipi_req(const u32 *req, size_t req_len, u32 *res, size_t res_maxlen)
 {
 	struct zynqmp_ipi_msg msg;
diff --git a/include/zynqmp_firmware.h b/include/zynqmp_firmware.h
index 19c004e91993..76c161806a0d 100644
--- a/include/zynqmp_firmware.h
+++ b/include/zynqmp_firmware.h
@@ -367,6 +367,7 @@ enum pm_ioctl_id {
 #define PAYLOAD_ARG_CNT	5U
 
 unsigned int zynqmp_firmware_version(void);
+int zynqmp_pmufw_node(u32 id);
 void zynqmp_pmufw_load_config_object(const void *cfg_obj, size_t size);
 int xilinx_pm_request(u32 api_id, u32 arg0, u32 arg1, u32 arg2,
 		      u32 arg3, u32 *ret_payload);
-- 
2.34.1