diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/target/arm_adi_v5.c | 38 |
1 files changed, 33 insertions, 5 deletions
diff --git a/src/target/arm_adi_v5.c b/src/target/arm_adi_v5.c index f8a2e227..66ec114f 100644 --- a/src/target/arm_adi_v5.c +++ b/src/target/arm_adi_v5.c @@ -10,6 +10,8 @@ * * * Copyright (C) 2009-2010 by David Brownell * * * + * Copyright (C) 2011 Tomasz Boleslaw CEDRO <cederom@tlen.pl> * * + * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * @@ -72,7 +74,12 @@ #include "arm.h" #include "arm_adi_v5.h" #include <helper/time_support.h> +#include <jtag/interface.h> +#include <transport/transport.h> +//We need to have access to information on other layers such as transport etc +//these are kept in global interface structure for now. Change ASAP. +extern struct jtag_interface *jtag_interface; /* ARM ADI Specification requires at least 10 bits used for TAR autoincrement */ @@ -964,6 +971,8 @@ int mem_ap_sel_write_buf_u32(struct adiv5_dap *swjdp, uint8_t ap, */ extern const struct dap_ops jtag_dp_ops; +extern const struct dap_ops swd_dap_ops; + /*--------------------------------------------------------------------------*/ /** @@ -977,6 +986,8 @@ extern const struct dap_ops jtag_dp_ops; * for SWD transports not just JTAG; that will need to address differences * in layering. (JTAG is useful without any debug target; but not SWD.) * And this may not even use an AHB-AP ... e.g. DAP-Lite uses an APB-AP. + * TC@VI2011: As for now transport specific function set is selected in this + * function, as dap->ops is just a set of commands performed on a transport. */ int ahbap_debugport_init(struct adiv5_dap *dap) { @@ -989,9 +1000,24 @@ int ahbap_debugport_init(struct adiv5_dap *dap) /* JTAG-DP or SWJ-DP, in JTAG mode * ... for SWD mode this is patched as part * of link switchover - */ - if (!dap->ops) - dap->ops = &jtag_dp_ops; + * + * if (!dap->ops) + * dap->ops = &jtag_dp_ops; + */ + + /** Here we connect transport-specific function set to work with DAP. + * Transport initialization is also part of interface initialization. + * Target must select which transport to use (if supports many of them). + * If SWD transport is not selected JTAG is set here as default. + */ + if ((strncmp(jtag_interface->transport->name, "swd", 3)==0)) { + LOG_INFO("Selecting SWD transport command set."); + dap->ops = &swd_dap_ops; + } else { + LOG_INFO("Selecting JTAG transport command set."); + dap->ops = &jtag_dp_ops; + } + /* Default MEM-AP setup. * @@ -1088,7 +1114,7 @@ int dap_get_debugbase(struct adiv5_dap *dap, int ap, { uint32_t ap_old; int retval; - uint32_t dbgbase, apid; + uint32_t dbgbase, apid, idcode; /* AP address is in bits 31:24 of DP_SELECT */ if (ap >= 256) @@ -1110,8 +1136,10 @@ int dap_get_debugbase(struct adiv5_dap *dap, int ap, /* Excavate the device ID code */ struct jtag_tap *tap = dap->jtag_info->tap; while (tap != NULL) { - if (tap->hasidcode) + if (tap->hasidcode) { + idcode = tap->idcode; break; + } tap = tap->next_tap; } if (tap == NULL || !tap->hasidcode) |