Mask out TTI interrupts when recovery mode is enabled

Internal-tag: [#71469]
Signed-off-by: Maciej Kurc <[email protected]>

src/hci/tti.sv

@@ -87,7 +87,8 @@ module tti
     // IBI status
     input logic [1:0] ibi_status_i,
     input logic ibi_status_we_i,
-
+    // Recovery status
+    input logic recovery_mode_enabled_i,
     // Private read status
     input logic tx_pr_end_i,
 
@@ -224,8 +225,8 @@ module tti
       rx_desc_queue_write_r <= '0;
       rx_data_queue_write_r <= '0;
     end else begin
-      rx_desc_queue_write_r <= rx_desc_queue_write_i;
-      rx_data_queue_write_r <= rx_data_queue_write_i;
+      rx_desc_queue_write_r <= rx_desc_queue_write_i & ~recovery_mode_enabled_i;
+      rx_data_queue_write_r <= rx_data_queue_write_i & ~recovery_mode_enabled_i;
     end
   end
 
@@ -303,7 +304,7 @@ module tti
   interrupt xintr4 (
     .clk_i          (clk_i),
     .rst_ni         (rst_ni),
-    .irq_i          (tx_pr_end_i),
+    .irq_i          (~recovery_mode_enabled_i & tx_pr_end_i),
     .clr_i          ('0),
     .irq_force_i    (hwif_tti_i.INTERRUPT_FORCE.TX_DESC_STAT_FORCE.value),
     .sts_o          (hwif_tti_o.INTERRUPT_STATUS.TX_DESC_STAT.next),

src/i3c.sv

@@ -505,6 +505,7 @@ module i3c
   logic controller_error;
 
   logic recovery_mode_enter;
+  logic recovery_mode_enabled;
   logic virtual_device_tx;
   logic virtual_device_tx_done;
 
@@ -948,6 +949,7 @@ module i3c
       .ibi_queue_reg_rst_we_i  (csr_tti_ibi_reg_rst_we),
       .ibi_queue_reg_rst_data_i(csr_tti_ibi_reg_rst_data),
 
+      .recovery_mode_enabled_i(recovery_mode_enabled),
       .ibi_status_i(ibi_status),
       .ibi_status_we_i(ibi_status_we),
       .tx_pr_end_i(tti_tx_pr_end),
@@ -1101,6 +1103,7 @@ module i3c
       .ctl_bus_addr_i(rx_bus_addr),
       .ctl_bus_addr_valid_i(rx_bus_addr_valid),
       .recovery_mode_enter_o(recovery_mode_enter),
+      .recovery_mode_enabled_o(recovery_mode_enabled),
       .virtual_device_tx_i(virtual_device_tx),
       .virtual_device_tx_done_o(virtual_device_tx_done)
   );

src/recovery/recovery_handler.sv

@@ -175,6 +175,7 @@ module recovery_handler
     output logic payload_available_o,
     output logic image_activated_o,
     output logic recovery_mode_enter_o,
+    output logic recovery_mode_enabled_o,
     input  logic virtual_device_tx_i,
     output logic virtual_device_tx_done_o
 );
@@ -192,6 +193,9 @@ module recovery_handler
   assign recovery_enable = (hwif_rec_i.DEVICE_STATUS_0.PLACEHOLDER.value[7:0] == RecoveryMode) | virtual_device_tx_i;
   assign recovery_mode_enabled = (hwif_rec_i.DEVICE_STATUS_0.PLACEHOLDER.value[7:0] == RecoveryMode);
 
+  // Output recovery mode enable state. Either via DEVICE_STATUS or via access through virtual target address
+  assign recovery_mode_enabled_o = recovery_enable;
+
   // poke cec module to inlude addr data when we trigger recovery logic from virtual device interface
   logic [1:0] virtual_device_cec_shreg;
   always @(posedge clk_i or negedge rst_ni)