return mem_ap_write_buf_u32(swjdp, buffer, count, address);
}
+#define MDM_REG_STAT 0x00
+#define MDM_REG_CTRL 0x04
+#define MDM_REG_ID 0xfc
+
+#define MDM_STAT_FMEACK (1<<0)
+#define MDM_STAT_FREADY (1<<1)
+#define MDM_STAT_SYSSEC (1<<2)
+#define MDM_STAT_SYSRES (1<<3)
+#define MDM_STAT_FMEEN (1<<5)
+#define MDM_STAT_BACKDOOREN (1<<6)
+#define MDM_STAT_LPEN (1<<7)
+#define MDM_STAT_VLPEN (1<<8)
+#define MDM_STAT_LLSMODEXIT (1<<9)
+#define MDM_STAT_VLLSXMODEXIT (1<<10)
+#define MDM_STAT_CORE_HALTED (1<<16)
+#define MDM_STAT_CORE_SLEEPDEEP (1<<17)
+#define MDM_STAT_CORESLEEPING (1<<18)
+
+#define MEM_CTRL_FMEIP (1<<0)
+#define MEM_CTRL_DBG_DIS (1<<1)
+#define MEM_CTRL_DBG_REQ (1<<2)
+#define MEM_CTRL_SYS_RES_REQ (1<<3)
+#define MEM_CTRL_CORE_HOLD_RES (1<<4)
+#define MEM_CTRL_VLLSX_DBG_REQ (1<<5)
+#define MEM_CTRL_VLLSX_DBG_ACK (1<<6)
+#define MEM_CTRL_VLLSX_STAT_ACK (1<<7)
+
+/**
+ *
+ */
+int dap_syssec_kinetis_mdmap(struct adiv5_dap *dap)
+{
+ uint32_t val;
+ int retval;
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
+
+ dap_ap_select(dap, 1);
+
+ /* first check mdm-ap id register */
+ retval = dap_queue_ap_read(dap, MDM_REG_ID, &val);
+ if (retval != ERROR_OK)
+ return retval;
+ dap_run(dap);
+
+ if ( val != 0x001C0000 )
+ {
+ LOG_DEBUG("id doesn't match %08X != 0x001C0000",val);
+ dap_ap_select(dap, 0);
+ return ERROR_FAIL;
+ }
+
+ /* read and parse status register
+ * it's important that the device is out of
+ * reset here
+ */
+ retval = dap_queue_ap_read(dap, MDM_REG_STAT, &val);
+ if (retval != ERROR_OK)
+ return retval;
+ dap_run(dap);
+
+ LOG_DEBUG("MDM_REG_STAT %08X",val);
+
+ if ( (val & (MDM_STAT_SYSSEC|MDM_STAT_FREADY)) != (MDM_STAT_FREADY) )
+ {
+ LOG_DEBUG("MDMAP: system is secured, masserase needed");
+
+ if ( !(val & MDM_STAT_FMEEN) )
+ {
+ LOG_DEBUG("MDMAP: masserase is disabled");
+ }
+ else
+ {
+ /* we need to assert reset */
+ if ( jtag_reset_config & RESET_HAS_SRST )
+ {
+ /* default to asserting srst */
+ if (jtag_reset_config & RESET_SRST_PULLS_TRST)
+ {
+ jtag_add_reset(1, 1);
+ }
+ else
+ {
+ jtag_add_reset(0, 1);
+ }
+ }
+ else
+ {
+ LOG_DEBUG("SRST not configured");
+ dap_ap_select(dap, 0);
+ return ERROR_FAIL;
+ }
+
+ while(1)
+ {
+ retval = dap_queue_ap_write(dap, MDM_REG_CTRL, MEM_CTRL_FMEIP);
+ if (retval != ERROR_OK)
+ return retval;
+ dap_run(dap);
+ /* read status register and wait for ready */
+ retval = dap_queue_ap_read(dap, MDM_REG_STAT, &val);
+ if (retval != ERROR_OK)
+ return retval;
+ dap_run(dap);
+ LOG_DEBUG("MDM_REG_STAT %08X",val);
+
+ if ( (val&1))
+ break;
+ }
+
+ while(1)
+ {
+ retval = dap_queue_ap_write(dap, MDM_REG_CTRL, 0);
+ if (retval != ERROR_OK)
+ return retval;
+ dap_run(dap);
+ /* read status register */
+ retval = dap_queue_ap_read(dap, MDM_REG_STAT, &val);
+ if (retval != ERROR_OK)
+ return retval;
+ dap_run(dap);
+ LOG_DEBUG("MDM_REG_STAT %08X",val);
+ /* read control register and wait for ready */
+ retval = dap_queue_ap_read(dap, MDM_REG_CTRL, &val);
+ if (retval != ERROR_OK)
+ return retval;
+ dap_run(dap);
+ LOG_DEBUG("MDM_REG_CTRL %08X",val);
+
+ if ( val == 0x00 )
+ break;
+ }
+ }
+ }
+
+ dap_ap_select(dap, 0);
+
+ return ERROR_OK;
+}
+
+/** */
+struct dap_syssec_filter {
+ /** */
+ uint32_t idcode;
+ /** */
+ int (*dap_init)(struct adiv5_dap *dap);
+};
+
+/** */
+static struct dap_syssec_filter dap_syssec_filter_data[] = {
+ { 0x4BA00477, dap_syssec_kinetis_mdmap }
+};
+
+
+/**
+ *
+ */
+int dap_syssec(struct adiv5_dap *dap)
+{
+ unsigned int i;
+ struct jtag_tap *tap;
+
+ for(i=0;i<sizeof(dap_syssec_filter_data);i++)
+ {
+ tap = dap->jtag_info->tap;
+
+ while (tap != NULL)
+ {
+ if ( tap->hasidcode && (dap_syssec_filter_data[i].idcode == tap->idcode) )
+ {
+ LOG_DEBUG("DAP: mdmap_init for idcode: %08x",tap->idcode);
+ dap_syssec_filter_data[i].dap_init(dap);
+ }
+ tap = tap->next_tap;
+ }
+ }
+
+ return ERROR_OK;
+}
/*--------------------------------------------------------------------------*/
if (retval != ERROR_OK)
return retval;
+ dap_syssec(dap);
+
return ERROR_OK;
}
{
uint32_t ap_old;
int retval;
- uint32_t dbgbase, apid, idcode;
+ uint32_t dbgbase, apid;
/* AP address is in bits 31:24 of DP_SELECT */
if (ap >= 256)
/* Excavate the device ID code */
struct jtag_tap *tap = dap->jtag_info->tap;
while (tap != NULL) {
- if (tap->hasidcode) {
- idcode = tap->idcode;
+ if (tap->hasidcode)
break;
- }
tap = tap->next_tap;
}
if (tap == NULL || !tap->hasidcode)
struct adiv5_dap *dap, int ap)
{
int retval;
- uint32_t dbgbase, apid;
+ uint32_t dbgbase = 0, apid = 0; /* Silence gcc by initializing */
int romtable_present = 0;
uint8_t mem_ap;
uint32_t ap_old;
projects / fw / openocd / blobdiff