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ipdbg/pld: ipdbg can get tap and hub/ir from pld driver.

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To start a ipdbg server one needs to know the tap and the
instruction code to reach the IPDBG-Hub. This instruction is
vendor/family specific. Knowledge which can be provided by the
pld driver.

Change-Id: I13eeb9fee895d65cd48544da4704fcc9b528b869
Signed-off-by: Daniel Anselmi <danselmi@gmx.ch>
Reviewed-on: https://review.openocd.org/c/openocd/+/7369
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Daniel Anselmi
2023-04-15 01:13:12 +02:00
committed by Antonio Borneo
parent 373d7eaa70
commit a27907aed1
10 changed files with 245 additions and 9 deletions
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27
src/pld/lattice.c
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@@ -18,6 +18,9 @@
#include "certus.h"
#define PRELOAD 0x1C
#define USER1 0x32
#define USER2 0x38
struct lattice_devices_elem {
uint32_t id;
@@ -316,6 +319,29 @@ static int lattice_load_command(struct pld_device *pld_device, const char *filen
return retval;
}
int lattice_get_ipdbg_hub(int user_num, struct pld_device *pld_device, struct pld_ipdbg_hub *hub)
{
if (!pld_device)
return ERROR_FAIL;
struct lattice_pld_device *pld_device_info = pld_device->driver_priv;
if (!pld_device_info || !pld_device_info->tap)
return ERROR_FAIL;
hub->tap = pld_device_info->tap;
if (user_num == 1) {
hub->user_ir_code = USER1;
} else if (user_num == 2) {
hub->user_ir_code = USER2;
} else {
LOG_ERROR("lattice devices only have user register 1 & 2");
return ERROR_FAIL;
}
return ERROR_OK;
}
PLD_CREATE_COMMAND_HANDLER(lattice_pld_create_command)
{
if (CMD_ARGC != 4 && CMD_ARGC != 6)
@@ -524,4 +550,5 @@ struct pld_driver lattice_pld = {
.commands = lattice_command_handler,
.pld_create_command = &lattice_pld_create_command,
.load = &lattice_load_command,
.get_ipdbg_hub = lattice_get_ipdbg_hub,
};