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Commit da37ca0b authored by tharun kumar's avatar tharun kumar Committed by Gerrit - the friendly Code Review server
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msm: rdbg: remote debugger support on CDSP 



The Remote Debugger driver allows a debugger running
on a host PC to communicate with a remotestub running
on peripheral subsystems.

Change-Id: I3bb02bd784b6b378d707ff8a6422ae9fa912d28d
Acked-by: default avatarChenna Kesava Raju <chennak@qti.qualcomm.com>
Signed-off-by: default avatarTharun Kumar Merugu <mtharu@codeaurora.org>
parent 9fa4a186

Documentation/devicetree/bindings/arm/msm/rdbg-smp2p.txt

+4 −1
Original line number Diff line number Diff line
@@ -2,12 +2,15 @@ Qualcomm Technologies, Inc. Remote Debugger (RDBG) driver 


Required properties:

-compatible : Should be one of

	To communicate with modem

	To communicate with adsp

		qcom,smp2pgpio_client_rdbg_2_in (inbound)

		qcom,smp2pgpio_client_rdbg_2_out (outbound)

	To communicate with modem

		qcom,smp2pgpio_client_rdbg_1_in (inbound)

		qcom,smp2pgpio_client_rdbg_1_out (outbound)

	To communicate with cdsp

		qcom,smp2pgpio_client_rdbg_5_in (inbound)

		qcom,smp2pgpio_client_rdbg_5_out (outbound)

-gpios : the relevant gpio pins of the entry.



Example:

drivers/char/rdbg.c

+13 −5
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.

 * Copyright (c) 2013-2017, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -22,7 +22,7 @@ 
#include <linux/uaccess.h>

#include <linux/interrupt.h>



#define SMP2P_NUM_PROCS				8

#define SMP2P_NUM_PROCS				16

#define MAX_RETRIES				20



#define SM_VERSION				1
@@ -146,9 +146,17 @@ static struct processor_specific_info proc_info[SMP2P_NUM_PROCS] = { 
		{"rdbg_adsp", SMEM_LC_DEBUGGER, 16*1024},	/*ADSP*/

		{0},	/*SMP2P_RESERVED_PROC_1*/

		{"rdbg_wcnss", 0, 0},		/*WCNSS*/

		{0},	/*SMP2P_RESERVED_PROC_2*/

		{0},	/*SMP2P_POWER_PROC*/

		{0}		/*SMP2P_REMOTE_MOCK_PROC*/

		{"rdbg_cdsp", SMEM_LC_DEBUGGER, 16*1024},		/*CDSP*/

		{NULL},	/*SMP2P_POWER_PROC*/

		{NULL},	/*SMP2P_TZ_PROC*/

		{NULL},	/*EMPTY*/

		{NULL},	/*EMPTY*/

		{NULL},	/*EMPTY*/

		{NULL},	/*EMPTY*/

		{NULL},	/*EMPTY*/

		{NULL},	/*EMPTY*/

		{NULL},	/*EMPTY*/

		{NULL}		/*SMP2P_REMOTE_MOCK_PROC*/

};



static int smq_blockmap_get(struct smq_block_map *block_map,