From 3f1c15d2a718c9d417c859172f2b1736a769d822 Mon Sep 17 00:00:00 2001 From: root Date: Thu, 3 Jun 2021 11:37:37 +0200 Subject: [PATCH] target/adi_v5_jtag: Add support for 8-bit IR JTAG-DP As per Arm Debug Interface Architecture Specification (ADIv5.0 to ADIv5.2), B3.3.1, the JTAG-DP as an IR length of 4 or 8 bits depending on the ARM implementation. The current code only support 4-bit and this patch extends the support to 8-bit IR. Not tested back yet on a 4-bit target. Change-Id: Ie4f875dc336caf014c6cfced57574b54d0970623 Signed-off-by: Antoine C. Reviewed-on: https://review.openocd.org/c/openocd/+/6285 Tested-by: jenkins Reviewed-by: Antonio Borneo --- src/target/adi_v5_jtag.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/target/adi_v5_jtag.c b/src/target/adi_v5_jtag.c index 998c51cfb..be625807c 100644 --- a/src/target/adi_v5_jtag.c +++ b/src/target/adi_v5_jtag.c @@ -43,10 +43,10 @@ /*#define DEBUG_WAIT*/ /* JTAG instructions/registers for JTAG-DP and SWJ-DP */ -#define JTAG_DP_ABORT 0x8 -#define JTAG_DP_DPACC 0xA -#define JTAG_DP_APACC 0xB -#define JTAG_DP_IDCODE 0xE +#define JTAG_DP_ABORT 0xF8 +#define JTAG_DP_DPACC 0xFA +#define JTAG_DP_APACC 0xFB +#define JTAG_DP_IDCODE 0xFE /* three-bit ACK values for DPACC and APACC reads */ #define JTAG_ACK_OK_FAULT 0x2