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arm_adi_v5: add helper to search for part number 

Improve code readability and prepare to re-use the helper.

Change-Id: Iee5e01047c82be3dd86707f5c283f0b20cc4070d
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6449
Tested-by: jenkins
Reviewed-by: Daniel Goehring <dgoehrin@os.amperecomputing.com>
Reviewed-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
This commit is contained in:
Antonio Borneo 2021-08-17 01:05:39 +02:00
parent cf6909a57c
commit 02b5fa5103
1 changed files with 26 additions and 27 deletions
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53
src/target/arm_adi_v5.c
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@ -1115,12 +1115,12 @@ static int dap_read_part_id(struct adiv5_ap *ap, target_addr_t component_base, u
#define ANY_ID 0x1000
static const struct {
static const struct dap_part_nums {
uint16_t designer_id;
uint16_t part_num;
const char *type;
const char *full;
} dap_partnums[] = {
} dap_part_nums[] = {
{ ARM_ID, 0x000, "Cortex-M3 SCS", "(System Control Space)", },
{ ARM_ID, 0x001, "Cortex-M3 ITM", "(Instrumentation Trace Module)", },
{ ARM_ID, 0x002, "Cortex-M3 DWT", "(Data Watchpoint and Trace)", },
@ -1227,6 +1227,22 @@ static const struct {
{ ANY_ID, 0x343, "TI DAPCTL", "", }, /* from OMAP3 memmap */
};
static const struct dap_part_nums *pidr_to_part_num(unsigned int designer_id, unsigned int part_num)
{
static const struct dap_part_nums unknown = {
.type = "Unrecognized",
.full = "",
};
for (unsigned int i = 0; i < ARRAY_SIZE(dap_part_nums); i++) {
if (dap_part_nums[i].designer_id != designer_id && dap_part_nums[i].designer_id != ANY_ID)
continue;
if (dap_part_nums[i].part_num == part_num)
return &dap_part_nums[i];
}
return &unknown;
}
static int dap_devtype_display(struct command_invocation *cmd, uint32_t devtype)
{
const char *major = "Reserved", *subtype = "Reserved";
@ -1408,41 +1424,24 @@ static int dap_rom_display(struct command_invocation *cmd,
command_print(cmd, "\t\tPeripheral ID 0x%010" PRIx64, pid);
uint8_t class = (cid & ARM_CS_CIDR_CLASS_MASK) >> ARM_CS_CIDR_CLASS_SHIFT;
uint16_t part_num = ARM_CS_PIDR_PART(pid);
uint16_t designer_id = ARM_CS_PIDR_DESIGNER(pid);
const unsigned int class = (cid & ARM_CS_CIDR_CLASS_MASK) >> ARM_CS_CIDR_CLASS_SHIFT;
const unsigned int part_num = ARM_CS_PIDR_PART(pid);
unsigned int designer_id = ARM_CS_PIDR_DESIGNER(pid);
if (pid & ARM_CS_PIDR_JEDEC) {
/* JEP106 code */
command_print(cmd, "\t\tDesigner is 0x%03" PRIx16 ", %s",
command_print(cmd, "\t\tDesigner is 0x%03x, %s",
designer_id, jep106_manufacturer(designer_id));
} else {
/* Legacy ASCII ID, clear invalid bits */
designer_id &= 0x7f;
command_print(cmd, "\t\tDesigner ASCII code 0x%02" PRIx16 ", %s",
command_print(cmd, "\t\tDesigner ASCII code 0x%02x, %s",
designer_id, designer_id == 0x41 ? "ARM" : "<unknown>");
}
/* default values to be overwritten upon finding a match */
const char *type = "Unrecognized";
const char *full = "";
/* search dap_partnums[] array for a match */
for (unsigned entry = 0; entry < ARRAY_SIZE(dap_partnums); entry++) {
if ((dap_partnums[entry].designer_id != designer_id) && (dap_partnums[entry].designer_id != ANY_ID))
continue;
if (dap_partnums[entry].part_num != part_num)
continue;
type = dap_partnums[entry].type;
full = dap_partnums[entry].full;
break;
}
command_print(cmd, "\t\tPart is 0x%" PRIx16", %s %s", part_num, type, full);
command_print(cmd, "\t\tComponent class is 0x%" PRIx8 ", %s", class, class_description[class]);
const struct dap_part_nums *partnum = pidr_to_part_num(designer_id, part_num);
command_print(cmd, "\t\tPart is 0x%03x, %s %s", part_num, partnum->type, partnum->full);
command_print(cmd, "\t\tComponent class is 0x%x, %s", class, class_description[class]);
if (class == ARM_CS_CLASS_0X1_ROM_TABLE) {
uint32_t memtype;