diff --git a/arch/z80/src/common/up_assert.c b/arch/z80/src/common/up_assert.c
index 53855992bf7..546b763751c 100644
--- a/arch/z80/src/common/up_assert.c
+++ b/arch/z80/src/common/up_assert.c
@@ -161,17 +161,17 @@ void up_assert(void)
 
 #ifdef CONFIG_HAVE_FILENAME
 #if CONFIG_TASK_NAME_SIZE > 0
-  llerr("Assertion failed at file:%s line: %d task: %s\n",
-        filename, lineno, rtcb->name);
+  llinfo("Assertion failed at file:%s line: %d task: %s\n",
+         filename, lineno, rtcb->name);
 #else
-  llerr("Assertion failed at file:%s line: %d\n",
-        filename, lineno);
+  llinfo("Assertion failed at file:%s line: %d\n",
+         filename, lineno);
 #endif
 #else
 #if CONFIG_TASK_NAME_SIZE > 0
-  llerr("Assertion failed: task: %s\n", rtcb->name);
+  llinfo("Assertion failed: task: %s\n", rtcb->name);
 #else
-  llerr("Assertion failed\n");
+  llinfo("Assertion failed\n");
 #endif
 #endif
 
diff --git a/arch/z80/src/common/up_blocktask.c b/arch/z80/src/common/up_blocktask.c
index 8d0bcfc3a0f..3ce49030aff 100644
--- a/arch/z80/src/common/up_blocktask.c
+++ b/arch/z80/src/common/up_blocktask.c
@@ -85,7 +85,7 @@ void up_block_task(FAR struct tcb_s *tcb, tstate_t task_state)
   ASSERT((tcb->task_state >= FIRST_READY_TO_RUN_STATE) &&
          (tcb->task_state <= LAST_READY_TO_RUN_STATE));
 
-  /* err("Blocking TCB=%p\n", tcb); */
+  /* info("Blocking TCB=%p\n", tcb); */
 
   /* Remove the tcb task from the ready-to-run list.  If we
    * are blocking the task at the head of the task list (the
diff --git a/arch/z80/src/common/up_exit.c b/arch/z80/src/common/up_exit.c
index ddbf062f59a..ac534d72223 100644
--- a/arch/z80/src/common/up_exit.c
+++ b/arch/z80/src/common/up_exit.c
@@ -88,8 +88,8 @@ static void _up_dumponexit(FAR struct tcb_s *tcb, FAR void *arg)
   int i;
 #endif
 
-  llerr("  TCB=%p name=%s\n", tcb, tcb->argv[0]);
-  llerr("    priority=%d state=%d\n", tcb->sched_priority, tcb->task_state);
+  llinfo("  TCB=%p name=%s\n", tcb, tcb->argv[0]);
+  llinfo("    priority=%d state=%d\n", tcb->sched_priority, tcb->task_state);
 
 #if CONFIG_NFILE_DESCRIPTORS > 0
   filelist = tcb->group->tg_filelist;
@@ -98,8 +98,8 @@ static void _up_dumponexit(FAR struct tcb_s *tcb, FAR void *arg)
       struct inode *inode = filelist->fl_files[i].f_inode;
       if (inode)
         {
-          llerr("      fd=%d refcount=%d\n",
-                i, inode->i_crefs);
+          llinfo("      fd=%d refcount=%d\n",
+                 i, inode->i_crefs);
         }
     }
 #endif
@@ -112,11 +112,11 @@ static void _up_dumponexit(FAR struct tcb_s *tcb, FAR void *arg)
       if (filep->fs_fd >= 0)
         {
 #if CONFIG_STDIO_BUFFER_SIZE > 0
-          llerr("      fd=%d nbytes=%d\n",
-                filep->fs_fd,
-                filep->fs_bufpos - filep->fs_bufstart);
+          llinfo("      fd=%d nbytes=%d\n",
+                 filep->fs_fd,
+                 filep->fs_bufpos - filep->fs_bufstart);
 #else
-          llerr("      fd=%d\n", filep->fs_fd);
+          llinfo("      fd=%d\n", filep->fs_fd);
 #endif
         }
     }
@@ -149,10 +149,10 @@ void _exit(int status)
 
   (void)up_irq_save();
 
-  sllerr("TCB=%p exiting\n", tcb);
+  sllinfo("TCB=%p exiting\n", tcb);
 
 #if defined(CONFIG_DUMP_ON_EXIT) && defined(CONFIG_DEBUG_FEATURES)
-  llerr("Other tasks:\n");
+  llinfo("Other tasks:\n");
   sched_foreach(_up_dumponexit, NULL);
 #endif
 
@@ -165,7 +165,7 @@ void _exit(int status)
    */
 
   tcb = this_task();
-  sllerr("New Active Task TCB=%p\n", tcb);
+  sllinfo("New Active Task TCB=%p\n", tcb);
 
 #ifdef CONFIG_ARCH_ADDRENV
   /* Make sure that the address environment for the previously running
diff --git a/arch/z80/src/common/up_initialize.c b/arch/z80/src/common/up_initialize.c
index 585db52c625..f631238c463 100644
--- a/arch/z80/src/common/up_initialize.c
+++ b/arch/z80/src/common/up_initialize.c
@@ -75,13 +75,13 @@ static void up_calibratedelay(void)
 {
   int i;
 
-  llerr("Beginning 100s delay\n");
+  llwarn("Beginning 100s delay\n");
   for (i = 0; i < 100; i++)
     {
       up_mdelay(1000);
     }
 
-  llerr("End 100s delay\n");
+  llwarn("End 100s delay\n");
 }
 #else
 # define up_calibratedelay()
diff --git a/arch/z80/src/common/up_releasepending.c b/arch/z80/src/common/up_releasepending.c
index 411559b1949..bf824018ccf 100644
--- a/arch/z80/src/common/up_releasepending.c
+++ b/arch/z80/src/common/up_releasepending.c
@@ -70,7 +70,7 @@ void up_release_pending(void)
 {
   FAR struct tcb_s *rtcb = this_task();
 
-  sllerr("From TCB=%p\n", rtcb);
+  sllinfo("From TCB=%p\n", rtcb);
 
   /* Merge the g_pendingtasks list into the ready-to-run task list */
 
diff --git a/arch/z80/src/common/up_reprioritizertr.c b/arch/z80/src/common/up_reprioritizertr.c
index ad6de96fbf7..4e3a74157dc 100644
--- a/arch/z80/src/common/up_reprioritizertr.c
+++ b/arch/z80/src/common/up_reprioritizertr.c
@@ -98,7 +98,7 @@ void up_reprioritize_rtr(FAR struct tcb_s *tcb, uint8_t priority)
       FAR struct tcb_s *rtcb = this_task();
       bool switch_needed;
 
-      sllerr("TCB=%p PRI=%d\n", tcb, priority);
+      sllinfo("TCB=%p PRI=%d\n", tcb, priority);
 
       /* Remove the tcb task from the ready-to-run list.
        * sched_removereadytorun will return true if we just
diff --git a/arch/z80/src/common/up_stackdump.c b/arch/z80/src/common/up_stackdump.c
index e240ed655f7..89f197895f0 100644
--- a/arch/z80/src/common/up_stackdump.c
+++ b/arch/z80/src/common/up_stackdump.c
@@ -87,13 +87,13 @@ static void up_stackdump(void)
   uint16_t stack_base = (uint16_t)rtcb->adj_stack_ptr;
   uint16_t stack_size = (uint16_t)rtcb->adj_stack_size;
 
-  llerr("stack_base: %04x\n", stack_base);
-  llerr("stack_size: %04x\n", stack_size);
-  llerr("sp:         %04x\n", sp);
+  llinfo("stack_base: %04x\n", stack_base);
+  llinfo("stack_size: %04x\n", stack_size);
+  llinfo("sp:         %04x\n", sp);
 
   if (sp >= stack_base || sp < stack_base - stack_size)
     {
-      llerr("ERROR: Stack pointer is not within allocated stack\n");
+      llinfo("ERROR: Stack pointer is not within allocated stack\n");
       return;
     }
   else
@@ -103,7 +103,7 @@ static void up_stackdump(void)
       for (stack = sp & ~0x0f; stack < stack_base; stack += 8*sizeof(uint16_t))
         {
           uint16_t *ptr = (uint16_t*)stack;
-          llerr("%04x: %04x %04x %04x %04x %04x %04x %04x %04x\n",
+          llinfo("%04x: %04x %04x %04x %04x %04x %04x %04x %04x\n",
                  stack, ptr[0], ptr[1], ptr[2], ptr[3],
                  ptr[4], ptr[5], ptr[6], ptr[7]);
         }
diff --git a/arch/z80/src/common/up_unblocktask.c b/arch/z80/src/common/up_unblocktask.c
index a3bad89b495..123881386e1 100644
--- a/arch/z80/src/common/up_unblocktask.c
+++ b/arch/z80/src/common/up_unblocktask.c
@@ -81,7 +81,7 @@ void up_unblock_task(FAR struct tcb_s *tcb)
   ASSERT((tcb->task_state >= FIRST_BLOCKED_STATE) &&
          (tcb->task_state <= LAST_BLOCKED_STATE));
 
-  /* err("Unblocking TCB=%p\n", tcb); */
+  /* info("Unblocking TCB=%p\n", tcb); */
 
   /* Remove the task from the blocked task list */
 
diff --git a/arch/z80/src/ez80/ez80_emac.c b/arch/z80/src/ez80/ez80_emac.c
index 12feabae9e1..0080cb388d4 100644
--- a/arch/z80/src/ez80/ez80_emac.c
+++ b/arch/z80/src/ez80/ez80_emac.c
@@ -578,7 +578,7 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
   phyval = ez80emac_miiread(priv, MII_PHYID1);
   if (phyval != MII_PHYID1_AM79C874)
     {
-      nerr("Not an Am79c874 PHY: PHY1=%04x vs %04x\n", phyval, MII_PHYID1_AM79C874);
+      nerr("ERROR: Not an Am79c874 PHY: PHY1=%04x vs %04x\n", phyval, MII_PHYID1_AM79C874);
       ret = -ENODEV;
       goto dumpregs;
     }
@@ -586,7 +586,7 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
   phyval = ez80emac_miiread(priv, MII_PHYID2);
   if (phyval != MII_PHYID2_AM79C874)
     {
-      nerr("Not an Am79c874 PHY: PHY2=%04x vs %04x\n", phyval, MII_PHYID2_AM79C874);
+      nerr("ERROR: Not an Am79c874 PHY: PHY2=%04x vs %04x\n", phyval, MII_PHYID2_AM79C874);
       ret = -ENODEV;
       goto dumpregs;
     }
@@ -618,7 +618,7 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
 
 #if CONFIG_EZ80_PHYCONFIG == EZ80_EMAC_AUTONEG
 
-   nerr("Configure autonegotiation\n");
+   ninfo("Configure autonegotiation\n");
    if (bauto)
     {
       ez80emac_miiwrite(priv, MII_ADVERTISE,
@@ -628,12 +628,12 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
     }
   else
     {
-      nerr("Am79c784 is not capable of autonegotiation\n");
+      nerr("ERROR: Am79c784 is not capable of autonegotiation\n");
     }
 
 #elif CONFIG_EZ80_PHYCONFIG == EZ80_EMAC_100BFD
 
-  nerr("100BASETX full duplex\n");
+  ninfo("100BASETX full duplex\n");
   phyval |= MII_MCR_SPEED100 | MII_MCR_FULLDPLX;
   ez80emac_miiwrite(priv, MII_ADVERTISE,
                     MII_ADVERTISE_100BASETXFULL|MII_ADVERTISE_100BASETXHALF|
@@ -642,7 +642,7 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
 
 #elif CONFIG_EZ80_PHYCONFIG == EZ80_EMAC_100BHD
 
-  nerr("100BASETX half duplex\n");
+  ninfo("100BASETX half duplex\n");
   phyval |= MII_MCR_SPEED100;
   ez80emac_miiwrite(priv, MII_ADVERTISE,
                     MII_ADVERTISE_100BASETXHALF|MII_ADVERTISE_10BASETXFULL|
@@ -650,14 +650,14 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
 
 #elif CONFIG_EZ80_PHYCONFIG == EZ80_EMAC_10BFD
 
-  nerr("10BASETX full duplex\n");
+  ninfo("10BASETX full duplex\n");
   phyval |= MII_MCR_FULLDPLX;
   ez80emac_miiwrite(priv, MII_ADVERTISE,
                     MII_ADVERTISE_10BASETXFULL|MII_ADVERTISE_10BASETXHALF|MII_ADVERTISE_CSMA);
 
 #elif CONFIG_EZ80_PHYCONFIG == EZ80_EMAC_10BHD
 
-  nerr("10BASETX half duplex\n");
+  ninfo("10BASETX half duplex\n");
   ez80emac_miiwrite(priv, MII_ADVERTISE,
                     MII_ADVERTISE_10BASETXHALF|MII_ADVERTISE_CSMA);
 
@@ -681,7 +681,7 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
 
   if ((phyval & MII_MSR_LINKSTATUS) == 0)
     {
-      nerr("Failed to establish link\n");
+      nerr("ERROR: Failed to establish link\n");
       ret = -ETIMEDOUT;
     }
   else
@@ -731,21 +731,21 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
 
   if (!ez80emac_miipoll(priv, MII_MCR, MII_MCR_ANRESTART, false))
     {
-      nerr("Autonegotiation didn't start.\n");
+      nerr("ERROR: Autonegotiation didn't start.\n");
     }
 
   /* Wait for auto-negotiation to complete */
 
   if (!ez80emac_miipoll(priv, MII_MSR, MII_MSR_ANEGCOMPLETE, true))
     {
-      nerr("Autonegotiation didn't complete.\n");
+      nerr("ERROR: Autonegotiation didn't complete.\n");
     }
 
   /* Wait link */
 
   if (!ez80emac_miipoll(priv, MII_MSR, MII_MSR_LINKSTATUS, true))
     {
-      nerr("Link is down!\n");
+      nwarn("WARNING: Link is down!\n");
       priv->blinkok = false;
     }
   else
@@ -763,7 +763,7 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
 
   if ((advertise & MII_ADVERTISE_100BASETXFULL) && (lpa & MII_LPA_100BASETXFULL))
     {
-      nerr("100BASETX full duplex\n");
+      ninfo("100BASETX full duplex\n");
       regval            = inp(EZ80_EMAC_CFG1);
       regval           |= EMAC_CFG1_FULLHD; /* Enable full duplex mode */
       outp(EZ80_EMAC_CFG1, regval);
@@ -775,7 +775,7 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
 
   else if ((advertise & MII_ADVERTISE_100BASETXHALF) && (lpa & MII_LPA_100BASETXHALF))
     {
-      nerr("100BASETX half duplex\n");
+      ninfo("100BASETX half duplex\n");
       regval            = inp(EZ80_EMAC_CFG1);
       regval           &= ~EMAC_CFG1_FULLHD; /* Disable full duplex mode */
       outp(EZ80_EMAC_CFG1, regval);
@@ -787,7 +787,7 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
 
   else if ((advertise & MII_ADVERTISE_10BASETXFULL) && (lpa & MII_LPA_10BASETXFULL))
     {
-      nerr("10BASETX full duplex\n");
+      ninfo("10BASETX full duplex\n");
       regval            = inp(EZ80_EMAC_CFG1);
       regval           |= EMAC_CFG1_FULLHD; /* Enable full duplex mode */
       outp(EZ80_EMAC_CFG1, regval);
@@ -799,7 +799,7 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
 
   else if ((advertise & MII_ADVERTISE_10BASETXHALF) && (lpa & MII_LPA_10BASETXHALF))
     {
-      nerr("10BASETX half duplex\n");
+      ninfo("10BASETX half duplex\n");
       regval            = inp(EZ80_EMAC_CFG1);
       regval           &= ~EMAC_CFG1_FULLHD; /* Disable full duplex mode */
       outp(EZ80_EMAC_CFG1, regval);
@@ -808,7 +808,7 @@ static int ez80emac_miiconfigure(FAR struct ez80emac_driver_s *priv)
     }
   else
     {
-      nerr("No valid connection; force 10Mbps half-duplex.\n");
+      nwarn("WARNING: No valid connection; force 10Mbps half-duplex.\n");
       regval            = inp(EZ80_EMAC_CFG1);
       regval           &= ~EMAC_CFG1_FULLHD; /* Disable full duplex mode */
       outp(EZ80_EMAC_CFG1, regval);
@@ -1400,7 +1400,7 @@ static int ez80emac_receive(struct ez80emac_driver_s *priv)
       else
 #endif
         {
-          nerr("Unsupported packet type dropped (%02x)\n", ETHBUF->type);
+          ninfo("Unsupported packet type dropped (%02x)\n", ETHBUF->type);
           EMAC_STAT(priv, rx_dropped);
         }
 
@@ -1458,9 +1458,9 @@ static int ez80emac_txinterrupt(int irq, FAR void *context)
     {
       if ((txhead->stat & EMAC_TXDESC_ABORT) != 0)
         {
-          nerr("Descriptor %p aborted {%06x, %u, %04x} trp=%02x%02x\n",
-               txhead, txhead->np, txhead->pktsize, txhead->stat,
-               inp(EZ80_EMAC_TRP_H), inp(EZ80_EMAC_TRP_L));
+          nwarn("WARNING: Descriptor %p aborted {%06x, %u, %04x} trp=%02x%02x\n",
+                txhead, txhead->np, txhead->pktsize, txhead->stat,
+                inp(EZ80_EMAC_TRP_H), inp(EZ80_EMAC_TRP_L));
 
           EMAC_STAT(priv, tx_errors);
           EMAC_STAT(priv, tx_abterrors);
@@ -1604,7 +1604,7 @@ static int ez80emac_sysinterrupt(int irq, FAR void *context)
 
   if ((istat & EMAC_ISTAT_TXFSMERR) != 0)
     {
-      nerr("Tx FSMERR txhead=%p {%06x, %u, %04x} trp=%02x%02x istat=%02x\n",
+      nwarn("WARNING: Tx FSMERR txhead=%p {%06x, %u, %04x} trp=%02x%02x istat=%02x\n",
            priv->txhead, priv->txhead->np, priv->txhead->pktsize, priv->txhead->stat,
            inp(EZ80_EMAC_TRP_H), inp(EZ80_EMAC_TRP_L), istat);
 
@@ -1620,7 +1620,7 @@ static int ez80emac_sysinterrupt(int irq, FAR void *context)
 
   if ((istat & EMAC_ISTAT_RXOVR) != 0)
     {
-      nerr("Rx OVR rxnext=%p {%06x, %u, %04x} rrp=%02x%02x rwp=%02x%02x blkslft=%02x istat=%02x\n",
+      nwarn("WARNING: Rx OVR rxnext=%p {%06x, %u, %04x} rrp=%02x%02x rwp=%02x%02x blkslft=%02x istat=%02x\n",
            priv->rxnext, priv->rxnext->np, priv->rxnext->pktsize, priv->rxnext->stat,
            inp(EZ80_EMAC_RRP_H), inp(EZ80_EMAC_RRP_L),
            inp(EZ80_EMAC_RWP_H), inp(EZ80_EMAC_RWP_L),
@@ -1728,13 +1728,13 @@ static int ez80emac_ifup(FAR struct net_driver_s *dev)
   uint8_t regval;
   int ret;
 
-  nerr("Bringing up: MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
-       dev->d_mac.ether_addr_octet[0], dev->d_mac.ether_addr_octet[1],
-       dev->d_mac.ether_addr_octet[2], dev->d_mac.ether_addr_octet[3],
-       dev->d_mac.ether_addr_octet[4], dev->d_mac.ether_addr_octet[5]);
-  nerr("             IP  %d.%d.%d.%d\n",
-       dev->d_ipaddr >> 24,       (dev->d_ipaddr >> 16) & 0xff,
-      (dev->d_ipaddr >> 8) & 0xff, dev->d_ipaddr & 0xff);
+  ninfo("Bringing up: MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
+        dev->d_mac.ether_addr_octet[0], dev->d_mac.ether_addr_octet[1],
+        dev->d_mac.ether_addr_octet[2], dev->d_mac.ether_addr_octet[3],
+        dev->d_mac.ether_addr_octet[4], dev->d_mac.ether_addr_octet[5]);
+  ninfo("             IP  %d.%d.%d.%d\n",
+        dev->d_ipaddr >> 24,       (dev->d_ipaddr >> 16) & 0xff,
+       (dev->d_ipaddr >> 8) & 0xff, dev->d_ipaddr & 0xff);
 
   /* Bring up the interface -- Must be down right now */
 
@@ -2094,7 +2094,7 @@ static int ez80_emacinitialize(void)
   ez80emac_miiwrite(priv, MII_MCR, MII_MCR_RESET);
   if (!ez80emac_miipoll(priv, MII_MCR, MII_MCR_RESET, false))
     {
-      nerr("PHY reset error.\n");
+      nerr("ERROR: PHY reset error.\n");
     }
 
   /*  Initialize MAC */
@@ -2149,7 +2149,7 @@ static int ez80_emacinitialize(void)
   ez80emac_miiwrite(priv, MII_MCR, MII_MCR_RESET);
   if (!ez80emac_miipoll(priv, MII_MCR, MII_MCR_RESET, false))
     {
-      nerr("PHY reset error.\n");
+      nerr("ERROR: PHY reset error.\n");
       ret = -EIO;
       goto errout;
     }
@@ -2200,7 +2200,7 @@ int up_netinitialize(void)
   ret = irq_attach(EZ80_EMACSYS_IRQ, ez80emac_sysinterrupt);
   if (ret < 0)
     {
-      nllerr("Unable to attach IRQ %d\n", EZ80_EMACSYS_IRQ);
+      nllerr("ERROR: Unable to attach IRQ %d\n", EZ80_EMACSYS_IRQ);
       ret = -EAGAIN;
       goto errout;
     }
@@ -2208,7 +2208,7 @@ int up_netinitialize(void)
   ret = irq_attach(EZ80_EMACRX_IRQ, ez80emac_rxinterrupt);
   if (ret < 0)
     {
-      nllerr("Unable to attach IRQ %d\n", EZ80_EMACRX_IRQ);
+      nllerr("ERROR: Unable to attach IRQ %d\n", EZ80_EMACRX_IRQ);
       ret = -EAGAIN;
       goto errout;
     }
@@ -2216,7 +2216,7 @@ int up_netinitialize(void)
   ret = irq_attach(EZ80_EMACTX_IRQ, ez80emac_txinterrupt);
   if (ret < 0)
     {
-      nllerr("Unable to attach IRQ %d\n", EZ80_EMACTX_IRQ);
+      nllerr("ERROR: Unable to attach IRQ %d\n", EZ80_EMACTX_IRQ);
       ret = -EAGAIN;
       goto errout;
     }
diff --git a/arch/z80/src/ez80/ez80_i2c.c b/arch/z80/src/ez80/ez80_i2c.c
index 73f78fc2e7a..04c45c3c4cb 100644
--- a/arch/z80/src/ez80/ez80_i2c.c
+++ b/arch/z80/src/ez80/ez80_i2c.c
@@ -404,7 +404,7 @@ static int ez80_i2c_sendaddr(struct ez80_i2cdev_s *priv, uint8_t readbit)
     {
       /* This error should never occur */
 
-      err("Bad START status: %02x\n", sr);
+      err("ERROR: Bad START status: %02x\n", sr);
       ez80_i2c_clriflg();
       return -EIO;
     }
@@ -426,7 +426,7 @@ static int ez80_i2c_sendaddr(struct ez80_i2cdev_s *priv, uint8_t readbit)
       sr = ez80_i2c_waitiflg();
       if (sr != I2C_SR_MADDRWRACK && sr != I2C_SR_MADDRWR)
         {
-          err("Bad ADDR8 status: %02x\n", sr);
+          err("ERROR: Bad ADDR8 status: %02x\n", sr);
           goto failure;
         }
     }
@@ -445,7 +445,7 @@ static int ez80_i2c_sendaddr(struct ez80_i2cdev_s *priv, uint8_t readbit)
       sr = ez80_i2c_waitiflg();
       if (sr != I2C_SR_MADDRWRACK && sr != I2C_SR_MADDRWR)
         {
-         err("Bad ADDR10H status: %02x\n", sr);
+         err("ERROR: Bad ADDR10H status: %02x\n", sr);
          goto failure;
         }
 
@@ -459,7 +459,7 @@ static int ez80_i2c_sendaddr(struct ez80_i2cdev_s *priv, uint8_t readbit)
       sr = ez80_i2c_waitiflg();
       if (sr != I2C_SR_MADDR2WRACK && sr != I2C_SR_MADDR2WR)
         {
-          err("Bad ADDR10L status: %02x\n", sr);
+          err("ERROR: Bad ADDR10L status: %02x\n", sr);
           goto failure;
         }
     }
@@ -479,12 +479,12 @@ failure:
                              * Call address received, ACK transmitted */
       case I2C_SR_ARBLOST4: /* Arbitration lost in address as master, slave
                              * address and Read bit received, ACK transmitted */
-        err("Arbitration lost: %02x\n", sr);
+        err("ERROR: Arbitration lost: %02x\n", sr);
         ez80_i2c_clriflg();
         return -EAGAIN;
 
       default:
-        err("Unexpected status: %02x\n", sr);
+        err("ERROR: Unexpected status: %02x\n", sr);
         ez80_i2c_clriflg();
         return -EIO;
     }
@@ -634,7 +634,7 @@ static int ez80_i2c_read_transfer(FAR struct ez80_i2cdev_s *priv,
              * this will cause the whole transfer to start over
              */
 
-            err("Arbitration lost: %02x\n", regval);
+            err("ERROR: Arbitration lost: %02x\n", regval);
             ez80_i2c_clriflg();
             break;
           }
@@ -643,7 +643,7 @@ static int ez80_i2c_read_transfer(FAR struct ez80_i2cdev_s *priv,
 
         else
           {
-            err("Unexpected status: %02x\n", regval);
+            err("ERROR: Unexpected status: %02x\n", regval);
             ez80_i2c_clriflg();
             return-EIO;
           }
@@ -731,7 +731,7 @@ static int ez80_i2c_write_transfer(FAR struct ez80_i2cdev_s *priv,
           sr = ez80_i2c_waitiflg();
           if (sr != I2C_SR_MDATAWRACK && sr != I2C_SR_MDATAWR)
             {
-              err("Bad DATA status: %02x\n", sr);
+              err("ERROR: Bad DATA status: %02x\n", sr);
               ez80_i2c_clriflg();
               if (sr == I2C_SR_ARBLOST1)
                 {
diff --git a/arch/z80/src/ez80/ez80_registerdump.c b/arch/z80/src/ez80/ez80_registerdump.c
index 0a30eb1c0fc..4ccd09ce570 100644
--- a/arch/z80/src/ez80/ez80_registerdump.c
+++ b/arch/z80/src/ez80/ez80_registerdump.c
@@ -81,23 +81,23 @@ static void ez80_registerdump(void)
   if (g_current_regs)
     {
 #ifdef CONFIG_EZ80_Z80MODE
-      llerr("AF: %04x  I: %04x\n",
-            g_current_regs[XCPT_AF], g_current_regs[XCPT_I]);
-      llerr("BC: %04x DE: %04x HL: %04x\n",
-            g_current_regs[XCPT_BC], g_current_regs[XCPT_DE], g_current_regs[XCPT_HL]);
-      llerr("IX: %04x IY: %04x\n",
-            g_current_regs[XCPT_IX], g_current_regs[XCPT_IY]);
-      llerr("SP: %04x PC: %04x\n"
-            g_current_regs[XCPT_SP], g_current_regs[XCPT_PC]);
+      llinfo("AF: %04x  I: %04x\n",
+             g_current_regs[XCPT_AF], g_current_regs[XCPT_I]);
+      llinfo("BC: %04x DE: %04x HL: %04x\n",
+             g_current_regs[XCPT_BC], g_current_regs[XCPT_DE], g_current_regs[XCPT_HL]);
+      llinfo("IX: %04x IY: %04x\n",
+             g_current_regs[XCPT_IX], g_current_regs[XCPT_IY]);
+      llinfo("SP: %04x PC: %04x\n"
+             g_current_regs[XCPT_SP], g_current_regs[XCPT_PC]);
 #else
-      llerr("AF: %06x  I: %06x\n",
-            g_current_regs[XCPT_AF], g_current_regs[XCPT_I]);
-      llerr("BC: %06x DE: %06x HL: %06x\n",
-            g_current_regs[XCPT_BC], g_current_regs[XCPT_DE], g_current_regs[XCPT_HL]);
-      llerr("IX: %06x IY: %06x\n",
-            g_current_regs[XCPT_IX], g_current_regs[XCPT_IY]);
-      llerr("SP: %06x PC: %06x\n"
-            g_current_regs[XCPT_SP], g_current_regs[XCPT_PC]);
+      llinfo("AF: %06x  I: %06x\n",
+             g_current_regs[XCPT_AF], g_current_regs[XCPT_I]);
+      llinfo("BC: %06x DE: %06x HL: %06x\n",
+             g_current_regs[XCPT_BC], g_current_regs[XCPT_DE], g_current_regs[XCPT_HL]);
+      llinfo("IX: %06x IY: %06x\n",
+             g_current_regs[XCPT_IX], g_current_regs[XCPT_IY]);
+      llinfo("SP: %06x PC: %06x\n"
+             g_current_regs[XCPT_SP], g_current_regs[XCPT_PC]);
 #endif
     }
 }
diff --git a/arch/z80/src/ez80/ez80_schedulesigaction.c b/arch/z80/src/ez80/ez80_schedulesigaction.c
index b8de5d3c732..6cc6b57c66b 100644
--- a/arch/z80/src/ez80/ez80_schedulesigaction.c
+++ b/arch/z80/src/ez80/ez80_schedulesigaction.c
@@ -125,7 +125,7 @@ void up_schedule_sigaction(FAR struct tcb_s *tcb, sig_deliver_t sigdeliver)
 {
   irqstate_t flags;
 
-  serr("tcb=0x%p sigdeliver=0x%04x\n", tcb, (uint16_t)sigdeliver);
+  sinfo("tcb=0x%p sigdeliver=0x%04x\n", tcb, (uint16_t)sigdeliver);
 
   /* Make sure that interrupts are disabled */
 
diff --git a/arch/z80/src/ez80/ez80_sigdeliver.c b/arch/z80/src/ez80/ez80_sigdeliver.c
index 3532758f638..694b3c01865 100644
--- a/arch/z80/src/ez80/ez80_sigdeliver.c
+++ b/arch/z80/src/ez80/ez80_sigdeliver.c
@@ -95,8 +95,8 @@ void up_sigdeliver(void)
 
   board_autoled_on(LED_SIGNAL);
 
-  serr("rtcb=%p sigdeliver=%p sigpendactionq.head=%p\n",
-        rtcb, rtcb->xcp.sigdeliver, rtcb->sigpendactionq.head);
+  sinfo("rtcb=%p sigdeliver=%p sigpendactionq.head=%p\n",
+         rtcb, rtcb->xcp.sigdeliver, rtcb->sigpendactionq.head);
   ASSERT(rtcb->xcp.sigdeliver != NULL);
 
   /* Save the real return state on the stack. */
@@ -127,7 +127,7 @@ void up_sigdeliver(void)
    * errno that is needed by the user logic (it is probably EINTR).
    */
 
-  serr("Resuming\n");
+  sinfo("Resuming\n");
   (void)up_irq_save();
   rtcb->pterrno = saved_errno;
 
diff --git a/arch/z80/src/z180/z180_registerdump.c b/arch/z80/src/z180/z180_registerdump.c
index d7a9b2d58eb..83d7faaa552 100644
--- a/arch/z80/src/z180/z180_registerdump.c
+++ b/arch/z80/src/z180/z180_registerdump.c
@@ -60,14 +60,6 @@
 
 #ifdef CONFIG_ARCH_STACKDUMP
 
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
 /****************************************************************************
  * Private Functions
  ****************************************************************************/
@@ -80,16 +72,16 @@ static void z180_registerdump(void)
 {
   if (g_current_regs)
     {
-      llerr("AF: %04x  I: %04x\n",
-            g_current_regs[XCPT_AF], g_current_regs[XCPT_I]);
-      llerr("BC: %04x DE: %04x HL: %04x\n",
-            g_current_regs[XCPT_BC], g_current_regs[XCPT_DE], g_current_regs[XCPT_HL]);
-      llerr("IX: %04x IY: %04x\n",
-            g_current_regs[XCPT_IX], g_current_regs[XCPT_IY]);
-      llerr("SP: %04x PC: %04x\n"
-            g_current_regs[XCPT_SP], g_current_regs[XCPT_PC]);
-      llerr("CBAR: %02x BBR: %02x CBR: %02x\n"
-            inp(Z180_MMU_CBAR), inp(Z180_MMU_BBR), inp(Z180_MMU_CBR));
+      llinfo("AF: %04x  I: %04x\n",
+             g_current_regs[XCPT_AF], g_current_regs[XCPT_I]);
+      llinfo("BC: %04x DE: %04x HL: %04x\n",
+             g_current_regs[XCPT_BC], g_current_regs[XCPT_DE], g_current_regs[XCPT_HL]);
+      llinfo("IX: %04x IY: %04x\n",
+             g_current_regs[XCPT_IX], g_current_regs[XCPT_IY]);
+      llinfo("SP: %04x PC: %04x\n"
+             g_current_regs[XCPT_SP], g_current_regs[XCPT_PC]);
+      llinfo("CBAR: %02x BBR: %02x CBR: %02x\n"
+             inp(Z180_MMU_CBAR), inp(Z180_MMU_BBR), inp(Z180_MMU_CBR));
     }
 }
 
diff --git a/arch/z80/src/z180/z180_schedulesigaction.c b/arch/z80/src/z180/z180_schedulesigaction.c
index 360f06bb1ae..ade86734e93 100644
--- a/arch/z80/src/z180/z180_schedulesigaction.c
+++ b/arch/z80/src/z180/z180_schedulesigaction.c
@@ -125,7 +125,7 @@ void up_schedule_sigaction(FAR struct tcb_s *tcb, sig_deliver_t sigdeliver)
 {
   irqstate_t flags;
 
-  err("tcb=0x%p sigdeliver=0x%04x\n", tcb, (uint16_t)sigdeliver);
+  info("tcb=0x%p sigdeliver=0x%04x\n", tcb, (uint16_t)sigdeliver);
 
   /* Make sure that interrupts are disabled */
 
diff --git a/arch/z80/src/z180/z180_sigdeliver.c b/arch/z80/src/z180/z180_sigdeliver.c
index 42925eb31a1..3a67b345f8b 100644
--- a/arch/z80/src/z180/z180_sigdeliver.c
+++ b/arch/z80/src/z180/z180_sigdeliver.c
@@ -94,8 +94,8 @@ void up_sigdeliver(void)
 
   board_autoled_on(LED_SIGNAL);
 
-  serr("rtcb=%p sigdeliver=%p sigpendactionq.head=%p\n",
-       rtcb, rtcb->xcp.sigdeliver, rtcb->sigpendactionq.head);
+  sinfo("rtcb=%p sigdeliver=%p sigpendactionq.head=%p\n",
+        rtcb, rtcb->xcp.sigdeliver, rtcb->sigpendactionq.head);
   ASSERT(rtcb->xcp.sigdeliver != NULL);
 
   /* Save the real return state on the stack. */
@@ -126,7 +126,7 @@ void up_sigdeliver(void)
    * errno that is needed by the user logic (it is probably EINTR).
    */
 
-  serr("Resuming\n");
+  sinfo("Resuming\n");
   (void)up_irq_save();
   rtcb->pterrno = saved_errno;
 
diff --git a/arch/z80/src/z8/z8_i2c.c b/arch/z80/src/z8/z8_i2c.c
index cf8c3470689..a5c597cba91 100644
--- a/arch/z80/src/z8/z8_i2c.c
+++ b/arch/z80/src/z8/z8_i2c.c
@@ -236,7 +236,7 @@ static uint16_t z8_i2c_getbrg(uint32_t frequency)
 
   if (frequency > 400*1000)
     {
-      err("Invalid inputs\n");
+      err("ERROR: Invalid inputs\n");
       frequency = 400*1000;
     }
 
diff --git a/arch/z80/src/z8/z8_registerdump.c b/arch/z80/src/z8/z8_registerdump.c
index aff6aa88ec5..f6a6b91ac77 100644
--- a/arch/z80/src/z8/z8_registerdump.c
+++ b/arch/z80/src/z8/z8_registerdump.c
@@ -63,30 +63,22 @@
 
 #ifdef CONFIG_ARCH_STACKDUMP
 
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
 /****************************************************************************
  * Private Functions
  ****************************************************************************/
 
 static inline void z8_dumpregs(FAR chipret_t *regs)
 {
-  llerr("REGS: %04x %04x %04x %04x %04x %04x %04x %04x\n",
+  llinfo("REGS: %04x %04x %04x %04x %04x %04x %04x %04x\n",
          regs[XCPT_RR0], regs[XCPT_RR2], regs[XCPT_RR4], regs[XCPT_RR6],
-         regs[XCPT_RR8], regs[XCPT_RR10], regs[XCPT_RR12], regs[XCPT_RR14]);
+          regs[XCPT_RR8], regs[XCPT_RR10], regs[XCPT_RR12], regs[XCPT_RR14]);
 }
 
 static inline void z8_dumpstate(chipreg_t sp, chipreg_t pc, uint8_t irqctl,
                                 chipreg_t rpflags)
 {
-  llerr("SP: %04x PC: %04x IRQCTL: %02x RP: %02x FLAGS: %02x\n",
-        sp, pc, irqctl & 0xff, rpflags >> 8, rpflags & 0xff);
+  llinfo("SP: %04x PC: %04x IRQCTL: %02x RP: %02x FLAGS: %02x\n",
+         sp, pc, irqctl & 0xff, rpflags >> 8, rpflags & 0xff);
 }
 
 /****************************************************************************
diff --git a/arch/z80/src/z8/z8_schedulesigaction.c b/arch/z80/src/z8/z8_schedulesigaction.c
index 94d9dc05413..679bccd6178 100644
--- a/arch/z80/src/z8/z8_schedulesigaction.c
+++ b/arch/z80/src/z8/z8_schedulesigaction.c
@@ -125,7 +125,7 @@ void up_schedule_sigaction(FAR struct tcb_s *tcb, sig_deliver_t sigdeliver)
 {
   irqstate_t flags;
 
-  err("tcb=0x%p sigdeliver=0x%04x\n", tcb, (uint16_t)sigdeliver);
+  info("tcb=0x%p sigdeliver=0x%04x\n", tcb, (uint16_t)sigdeliver);
 
   /* Make sure that interrupts are disabled */
 
diff --git a/arch/z80/src/z8/z8_sigdeliver.c b/arch/z80/src/z8/z8_sigdeliver.c
index 0edcb9e8c7e..b6abac296a0 100644
--- a/arch/z80/src/z8/z8_sigdeliver.c
+++ b/arch/z80/src/z8/z8_sigdeliver.c
@@ -109,8 +109,8 @@ void up_sigdeliver(void)
 
   board_autoled_on(LED_SIGNAL);
 
-  serr("rtcb=%p sigdeliver=%p sigpendactionq.head=%p\n",
-       rtcb, rtcb->xcp.sigdeliver, rtcb->sigpendactionq.head);
+  sinfo("rtcb=%p sigdeliver=%p sigpendactionq.head=%p\n",
+        rtcb, rtcb->xcp.sigdeliver, rtcb->sigpendactionq.head);
   ASSERT(rtcb->xcp.sigdeliver != NULL);
 
   /* Save the real return state on the stack. */
@@ -141,7 +141,7 @@ void up_sigdeliver(void)
    * errno that is needed by the user logic (it is probably EINTR).
    */
 
-  serr("Resuming\n");
+  sinfo("Resuming\n");
   (void)up_irq_save();
   rtcb->pterrno = saved_errno;
 
diff --git a/arch/z80/src/z80/z80_registerdump.c b/arch/z80/src/z80/z80_registerdump.c
index 961e763cec9..43494e24e8d 100644
--- a/arch/z80/src/z80/z80_registerdump.c
+++ b/arch/z80/src/z80/z80_registerdump.c
@@ -80,14 +80,14 @@ static void z80_registerdump(void)
 {
   if (g_current_regs)
     {
-      llerr("AF: %04x  I: %04x\n",
-            g_current_regs[XCPT_AF], g_current_regs[XCPT_I]);
-      llerr("BC: %04x DE: %04x HL: %04x\n",
-            g_current_regs[XCPT_BC], g_current_regs[XCPT_DE], g_current_regs[XCPT_HL]);
-      llerr("IX: %04x IY: %04x\n",
-            g_current_regs[XCPT_IX], g_current_regs[XCPT_IY]);
-      llerr("SP: %04x PC: %04x\n"
-            g_current_regs[XCPT_SP], g_current_regs[XCPT_PC]);
+      llinfo("AF: %04x  I: %04x\n",
+             g_current_regs[XCPT_AF], g_current_regs[XCPT_I]);
+      llinfo("BC: %04x DE: %04x HL: %04x\n",
+             g_current_regs[XCPT_BC], g_current_regs[XCPT_DE], g_current_regs[XCPT_HL]);
+      llinfo("IX: %04x IY: %04x\n",
+             g_current_regs[XCPT_IX], g_current_regs[XCPT_IY]);
+      llinfo("SP: %04x PC: %04x\n"
+             g_current_regs[XCPT_SP], g_current_regs[XCPT_PC]);
     }
 }
 
diff --git a/arch/z80/src/z80/z80_schedulesigaction.c b/arch/z80/src/z80/z80_schedulesigaction.c
index a90d495c3c2..dbb3cb55375 100644
--- a/arch/z80/src/z80/z80_schedulesigaction.c
+++ b/arch/z80/src/z80/z80_schedulesigaction.c
@@ -125,7 +125,7 @@ void up_schedule_sigaction(FAR struct tcb_s *tcb, sig_deliver_t sigdeliver)
 {
   irqstate_t flags;
 
-  err("tcb=0x%p sigdeliver=0x%04x\n", tcb, (uint16_t)sigdeliver);
+  info("tcb=0x%p sigdeliver=0x%04x\n", tcb, (uint16_t)sigdeliver);
 
   /* Make sure that interrupts are disabled */
 
diff --git a/arch/z80/src/z80/z80_sigdeliver.c b/arch/z80/src/z80/z80_sigdeliver.c
index 198ac4b4c7d..232eb4be98d 100644
--- a/arch/z80/src/z80/z80_sigdeliver.c
+++ b/arch/z80/src/z80/z80_sigdeliver.c
@@ -94,8 +94,8 @@ void up_sigdeliver(void)
 
   board_autoled_on(LED_SIGNAL);
 
-  serr("rtcb=%p sigdeliver=%p sigpendactionq.head=%p\n",
-       rtcb, rtcb->xcp.sigdeliver, rtcb->sigpendactionq.head);
+  sinfo("rtcb=%p sigdeliver=%p sigpendactionq.head=%p\n",
+        rtcb, rtcb->xcp.sigdeliver, rtcb->sigpendactionq.head);
   ASSERT(rtcb->xcp.sigdeliver != NULL);
 
   /* Save the real return state on the stack. */
@@ -126,7 +126,7 @@ void up_sigdeliver(void)
    * errno that is needed by the user logic (it is probably EINTR).
    */
 
-  serr("Resuming\n");
+  sinfo("Resuming\n");
   (void)up_irq_save();
   rtcb->pterrno = saved_errno;