[OpenOCD-commit] Main OpenOCD repository branch, master, updated. v0.12.0-351-g9c7c5ca4e

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- Log -----------------------------------------------------------------
commit 9c7c5ca4eb04b110f66b4e3c2494a1d55a962b33
Author: Nishanth Menon <nm...@ti...>
Date:   Thu Sep 14 07:49:02 2023 -0500

    tcl/target/ti_k3: Add AXI-AP port for direct SoC memory map access
    
    While we can read and write from memory from the view of various
    processors, all K3 debug systems have a AXI Access port that allows
    us to directly access memory from debug interface. This port is
    especially useful in the following scenarios:
    
    1. Debug cache related behavior on processors as this provides a
       direct bypass path.
    2. Processor has crashed or inaccessible for some reason (low power
       state etc.)
    3. Scenarios prior to the processor getting active.
    4. Debug MMU or address translation issues (example: TI's Region
       Address Table {RAT} translation table used to physically map
       SoC address space into R5/M4F processor address space)
    
    The AXI-AP port is the same for all processors in TI's K3 family.
    
    To prevent a circular-loop scenario for axi-ap accessing debug memory
    with dmem (direct memory access debug), enable this only when dmem is
    disabled.
    
    Change-Id: Ie4ca9222f034ffc2fa669fb5124a5f8e37b65e3b
    Reported-by: Dubravko Srsan <dub...@do...>
    Signed-off-by: Nishanth Menon <nm...@ti...>
    Reviewed-on: https://review.openocd.org/c/openocd/+/7899
    Reviewed-by: Antonio Borneo <bor...@gm...>
    Tested-by: jenkins

diff --git a/tcl/target/ti_k3.cfg b/tcl/target/ti_k3.cfg
index 090f08209..1cd85eec3 100644
--- a/tcl/target/ti_k3.cfg
+++ b/tcl/target/ti_k3.cfg
@@ -417,4 +417,7 @@ if { 0 == [string compare [adapter name] dmem ] } {
 	} else {
 		puts "ERROR: ${SOC} data is missing to support dmem access!"
 	}
+} else {
+	# AXI AP access port for SoC address map
+	target create $_CHIPNAME.axi_ap mem_ap -dap $_CHIPNAME.dap -ap-num 2
 }

-----------------------------------------------------------------------

Summary of changes:
 tcl/target/ti_k3.cfg | 3 +++
 1 file changed, 3 insertions(+)


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