mips_m4k.c: EJTAGBOOT and NORMALBOOT are not supported on EJTAG 2.0

Change-Id: I8157c19e9d8aed5c2376a2c54c32c1ddac1ad5af
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-on: http://openocd.zylin.com/1934
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

diff --git a/src/target/mips_m4k.c b/src/target/mips_m4k.c
index 4774c49c9fc2dffce95f7d35051e21ebcc706406..5b740cc45242b614800d4e66a11fc4cc73467cb8 100644 (file)
--- a/src/target/mips_m4k.c
+++ b/src/target/mips_m4k.c
@@ -318,11 +318,15 @@ static int mips_m4k_assert_reset(struct target *target)
                srst_asserted = true;
        }
 
-       if (target->reset_halt) {
-               /* use hardware to catch reset */
-               mips_ejtag_set_instr(ejtag_info, EJTAG_INST_EJTAGBOOT);
-       } else
-               mips_ejtag_set_instr(ejtag_info, EJTAG_INST_NORMALBOOT);
+
+       /* EJTAG before v2.5/2.6 does not support EJTAGBOOT or NORMALBOOT */
+       if (ejtag_info->ejtag_version != EJTAG_VERSION_20) {
+               if (target->reset_halt) {
+                       /* use hardware to catch reset */
+                       mips_ejtag_set_instr(ejtag_info, EJTAG_INST_EJTAGBOOT);
+               } else
+                       mips_ejtag_set_instr(ejtag_info, EJTAG_INST_NORMALBOOT);
+       }
 
        if (jtag_reset_config & RESET_HAS_SRST) {
                /* here we should issue a srst only, but we may have to assert trst as well */