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ARM ADI-V5: cleanup CID/PID addressing 

Use addition for offsetting, not masking.  Shorten some lines.
Make "component_start" print-only (unused otherwise; don't save).

Still doesn't resolve the issue where multiple components
are wrongly displaying as NVICs on some Cortex-M3 parts because
many PIDs appear to be zeroes ... maybe adapter related??

Signed-off-by: David Brownell <db@helium.(none)>
This commit is contained in:
David Brownell 2010-07-16 19:22:15 -04:00 committed by David Brownell
parent b05ae41331
commit a4dace3122
1 changed files with 23 additions and 21 deletions
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44
src/target/arm_adi_v5.c
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@ -1098,50 +1098,52 @@ static int dap_info_command(struct command_context *cmd_ctx,
{
uint32_t c_cid0, c_cid1, c_cid2, c_cid3;
uint32_t c_pid0, c_pid1, c_pid2, c_pid3, c_pid4;
uint32_t component_start, component_base;
uint32_t component_base;
unsigned part_num;
char *type, *full;
component_base = (uint32_t)((dbgbase & 0xFFFFF000)
+ (int)(romentry & 0xFFFFF000));
component_base = (dbgbase & 0xFFFFF000)
+ (romentry & 0xFFFFF000);
/* IDs are in last 4K section */
mem_ap_read_atomic_u32(dap,
(component_base & 0xFFFFF000)
| 0xFE0, &c_pid0);
component_base + 0xFE0, &c_pid0);
c_pid0 &= 0xff;
mem_ap_read_atomic_u32(dap,
(component_base & 0xFFFFF000)
| 0xFE4, &c_pid1);
component_base + 0xFE4, &c_pid1);
c_pid1 &= 0xff;
mem_ap_read_atomic_u32(dap,
(component_base & 0xFFFFF000)
| 0xFE8, &c_pid2);
component_base + 0xFE8, &c_pid2);
c_pid2 &= 0xff;
mem_ap_read_atomic_u32(dap,
(component_base & 0xFFFFF000)
| 0xFEC, &c_pid3);
component_base + 0xFEC, &c_pid3);
c_pid3 &= 0xff;
mem_ap_read_atomic_u32(dap,
(component_base & 0xFFFFF000)
| 0xFD0, &c_pid4);
component_base + 0xFD0, &c_pid4);
c_pid4 &= 0xff;
mem_ap_read_atomic_u32(dap,
(component_base & 0xFFFFF000) | 0xFF0, &c_cid0);
component_base + 0xFF0, &c_cid0);
c_cid0 &= 0xff;
mem_ap_read_atomic_u32(dap,
(component_base & 0xFFFFF000) | 0xFF4, &c_cid1);
component_base + 0xFF4, &c_cid1);
c_cid1 &= 0xff;
mem_ap_read_atomic_u32(dap,
(component_base & 0xFFFFF000) | 0xFF8, &c_cid2);
component_base + 0xFF8, &c_cid2);
c_cid2 &= 0xff;
mem_ap_read_atomic_u32(dap,
(component_base & 0xFFFFF000) | 0xFFC, &c_cid3);
component_base + 0xFFC, &c_cid3);
c_cid3 &= 0xff;
component_start = component_base - 0x1000*(c_pid4 >> 4);
command_print(cmd_ctx, "\t\tComponent base address 0x%" PRIx32
", start address 0x%" PRIx32,
component_base, component_start);
command_print(cmd_ctx,
"\t\tComponent base address 0x%" PRIx32
", start address 0x%" PRIx32,
component_base,
/* component may take multiple 4K pages */
component_base - 0x1000*(c_pid4 >> 4));
command_print(cmd_ctx, "\t\tComponent class is 0x%x, %s",
(int) (c_cid1 >> 4) & 0xf,
/* See ARM IHI 0029B Table 3-3 */