xilinx: firmware: Introduce zynqmp_pmufw_node() for loading PMU fragments

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@xilinx.com>
Link: https://lore.kernel.org/r/636e8150bd4e2b1f988d59795772c685ceeec083.1642163135.git.michal.simek@xilinx.com

diff --git a/drivers/firmware/firmware-zynqmp.c b/drivers/firmware/firmware-zynqmp.c
index 8d78888..05628da 100644 (file)
--- a/drivers/firmware/firmware-zynqmp.c
+++ b/drivers/firmware/firmware-zynqmp.c
@@ -28,6 +28,38 @@ 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 19c004e..76c1618 100644 (file)
--- 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);