[POWERPC] qe: miscellaneous code improvements and fixes to the QE library

This patch makes numerous miscellaneous code improvements to the QE library.

1. Remove struct ucc_common and merge ucc_init_guemr() into ucc_set_type()
   (every caller of ucc_init_guemr() also calls ucc_set_type()).  Modify all
   callers of ucc_set_type() accordingly.

2. Remove the unused enum ucc_pram_initial_offset.

3. Refactor qe_setbrg(), also implement work-around for errata QE_General4.

4. Several printk() calls were missing the terminating \n.

5. Add __iomem where needed, and change u16 to __be16 and u32 to __be32 where
   appropriate.

6. In ucc_slow_init() the RBASE and TBASE registers in the PRAM were programmed
   with the wrong value.

7. Add the protocol type to struct us_info and updated ucc_slow_init() to
   use it, instead of always programming QE_CR_PROTOCOL_UNSPECIFIED.

8. Rename ucc_slow_restart_x() to ucc_slow_restart_tx()

9. Add several macros in qe.h (mostly for slow UCC support, but also to
   standardize some naming convention) and remove several unused macros.

10. Update ucc_geth.c to use the new macros.

11. Add ucc_slow_info.protocol to specify which QE_CR_PROTOCOL_xxx protcol
    to use when initializing the UCC in ucc_slow_init().

12. Rename ucc_slow_pram.rfcr to rbmr and ucc_slow_pram.tfcr to tbmr, since
    these are the real names of the registers.

13. Use the setbits, clrbits, and clrsetbits where appropriate.

14. Refactor ucc_set_qe_mux_rxtx().

15. Remove all instances of 'volatile'.

16. Simplify get_cmxucr_reg();

17. Replace qe_mux.cmxucrX with qe_mux.cmxucr[].

18. Updated struct ucc_geth because struct ucc_fast is not padded any more.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

6 files changed, 236 insertions, 282 deletions

diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c
index 90f87408b5d5..3d57d3835b04 100644
--- a/arch/powerpc/sysdev/qe_lib/qe.c
+++ b/arch/powerpc/sysdev/qe_lib/qe.c
@@ -141,7 +141,7 @@ EXPORT_SYMBOL(qe_issue_cmd);
  * 16 BRGs, which can be connected to the QE channels or output
  * as clocks. The BRGs are in two different block of internal
  * memory mapped space.
- * The baud rate clock is the system clock divided by something.
+ * The BRG clock is the QE clock divided by 2.
  * It was set up long ago during the initial boot phase and is
  * is given to us.
  * Baud rate clocks are zero-based in the driver code (as that maps
@@ -165,28 +165,38 @@ unsigned int get_brg_clk(void)
 	return brg_clk;
 }
 
-/* This function is used by UARTS, or anything else that uses a 16x
- * oversampled clock.
+/* Program the BRG to the given sampling rate and multiplier
+ *
+ * @brg: the BRG, 1-16
+ * @rate: the desired sampling rate
+ * @multiplier: corresponds to the value programmed in GUMR_L[RDCR] or
+ * GUMR_L[TDCR].  E.g., if this BRG is the RX clock, and GUMR_L[RDCR]=01,
+ * then 'multiplier' should be 8.
+ *
+ * Also note that the value programmed into the BRGC register must be even.
  */
-void qe_setbrg(u32 brg, u32 rate)
+void qe_setbrg(unsigned int brg, unsigned int rate, unsigned int multiplier)
 {
-	volatile u32 *bp;
 	u32 divisor, tempval;
-	int div16 = 0;
+	u32 div16 = 0;
 
-	bp = &qe_immr->brg.brgc[brg];
+	divisor = get_brg_clk() / (rate * multiplier);
 
-	divisor = (get_brg_clk() / rate);
 	if (divisor > QE_BRGC_DIVISOR_MAX + 1) {
-		div16 = 1;
+		div16 = QE_BRGC_DIV16;
 		divisor /= 16;
 	}
 
-	tempval = ((divisor - 1) << QE_BRGC_DIVISOR_SHIFT) | QE_BRGC_ENABLE;
-	if (div16)
-		tempval |= QE_BRGC_DIV16;
+	/* Errata QE_General4, which affects some MPC832x and MPC836x SOCs, says
+	   that the BRG divisor must be even if you're not using divide-by-16
+	   mode. */
+	if (!div16 && (divisor & 1))
+		divisor++;
+
+	tempval = ((divisor - 1) << QE_BRGC_DIVISOR_SHIFT) |
+		QE_BRGC_ENABLE | div16;
 
-	out_be32(bp, tempval);
+	out_be32(&qe_immr->brg.brgc[brg - 1], tempval);
 }
 
 /* Initialize SNUMs (thread serial numbers) according to
diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c
index 55e6f394af82..9a2d1edd050e 100644
--- a/arch/powerpc/sysdev/qe_lib/qe_ic.c
+++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c
@@ -405,8 +405,6 @@ void __init qe_ic_init(struct device_node *node, unsigned int flags)
 		set_irq_data(qe_ic->virq_high, qe_ic);
 		set_irq_chained_handler(qe_ic->virq_high, qe_ic_cascade_high);
 	}
-
-	printk("QEIC (%d IRQ sources) at %p\n", NR_QE_IC_INTS, qe_ic->regs);
 }
 
 void qe_ic_set_highest_priority(unsigned int virq, int high)
diff --git a/arch/powerpc/sysdev/qe_lib/qe_io.c b/arch/powerpc/sysdev/qe_lib/qe_io.c
index e32b45bf9ff5..a114cb0c572f 100644
--- a/arch/powerpc/sysdev/qe_lib/qe_io.c
+++ b/arch/powerpc/sysdev/qe_lib/qe_io.c
@@ -195,29 +195,22 @@ EXPORT_SYMBOL(par_io_of_config);
 #ifdef DEBUG
 static void dump_par_io(void)
 {
-	int i;
+	unsigned int i;
 
-	printk(KERN_INFO "PAR IO registars:\n");
-	printk(KERN_INFO "Base address: 0x%08x\n", (u32) par_io);
+	printk(KERN_INFO "%s: par_io=%p\n", __FUNCTION__, par_io);
 	for (i = 0; i < num_par_io_ports; i++) {
-		printk(KERN_INFO "cpodr[%d] : addr - 0x%08x, val - 0x%08x\n",
-		       i, (u32) & par_io[i].cpodr,
-		       in_be32(&par_io[i].cpodr));
-		printk(KERN_INFO "cpdata[%d]: addr - 0x%08x, val - 0x%08x\n",
-		       i, (u32) & par_io[i].cpdata,
-		       in_be32(&par_io[i].cpdata));
-		printk(KERN_INFO "cpdir1[%d]: addr - 0x%08x, val - 0x%08x\n",
-		       i, (u32) & par_io[i].cpdir1,
-		       in_be32(&par_io[i].cpdir1));
-		printk(KERN_INFO "cpdir2[%d]: addr - 0x%08x, val - 0x%08x\n",
-		       i, (u32) & par_io[i].cpdir2,
-		       in_be32(&par_io[i].cpdir2));
-		printk(KERN_INFO "cppar1[%d]: addr - 0x%08x, val - 0x%08x\n",
-		       i, (u32) & par_io[i].cppar1,
-		       in_be32(&par_io[i].cppar1));
-		printk(KERN_INFO "cppar2[%d]: addr - 0x%08x, val - 0x%08x\n",
-		       i, (u32) & par_io[i].cppar2,
-		       in_be32(&par_io[i].cppar2));
+		printk(KERN_INFO "	cpodr[%u]=%08x\n", i,
+			in_be32(&par_io[i].cpodr));
+		printk(KERN_INFO "	cpdata[%u]=%08x\n", i,
+			in_be32(&par_io[i].cpdata));
+		printk(KERN_INFO "	cpdir1[%u]=%08x\n", i,
+			in_be32(&par_io[i].cpdir1));
+		printk(KERN_INFO "	cpdir2[%u]=%08x\n", i,
+			in_be32(&par_io[i].cpdir2));
+		printk(KERN_INFO "	cppar1[%u]=%08x\n", i,
+			in_be32(&par_io[i].cppar1));
+		printk(KERN_INFO "	cppar2[%u]=%08x\n", i,
+			in_be32(&par_io[i].cppar2));
 	}
 
 }
diff --git a/arch/powerpc/sysdev/qe_lib/ucc.c b/arch/powerpc/sysdev/qe_lib/ucc.c
index f970e5415ac0..0e348d9af8a6 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc.c
@@ -28,228 +28,188 @@
 
 static DEFINE_SPINLOCK(ucc_lock);
 
-int ucc_set_qe_mux_mii_mng(int ucc_num)
+int ucc_set_qe_mux_mii_mng(unsigned int ucc_num)
 {
 	unsigned long flags;
 
+	if (ucc_num > UCC_MAX_NUM - 1)
+		return -EINVAL;
+
 	spin_lock_irqsave(&ucc_lock, flags);
-	out_be32(&qe_immr->qmx.cmxgcr,
-		 ((in_be32(&qe_immr->qmx.cmxgcr) &
-		   ~QE_CMXGCR_MII_ENET_MNG) |
-		  (ucc_num << QE_CMXGCR_MII_ENET_MNG_SHIFT)));
+	clrsetbits_be32(&qe_immr->qmx.cmxgcr, QE_CMXGCR_MII_ENET_MNG,
+		ucc_num << QE_CMXGCR_MII_ENET_MNG_SHIFT);
 	spin_unlock_irqrestore(&ucc_lock, flags);
 
 	return 0;
 }
 EXPORT_SYMBOL(ucc_set_qe_mux_mii_mng);
 
-int ucc_set_type(int ucc_num, struct ucc_common *regs,
-		 enum ucc_speed_type speed)
-{
-	u8 guemr = 0;
-
-	/* check if the UCC number is in range. */
-	if ((ucc_num > UCC_MAX_NUM - 1) || (ucc_num < 0))
-		return -EINVAL;
-
-	guemr = regs->guemr;
-	guemr &= ~(UCC_GUEMR_MODE_MASK_RX | UCC_GUEMR_MODE_MASK_TX);
-	switch (speed) {
-	case UCC_SPEED_TYPE_SLOW:
-		guemr |= (UCC_GUEMR_MODE_SLOW_RX | UCC_GUEMR_MODE_SLOW_TX);
-		break;
-	case UCC_SPEED_TYPE_FAST:
-		guemr |= (UCC_GUEMR_MODE_FAST_RX | UCC_GUEMR_MODE_FAST_TX);
-		break;
-	default:
-		return -EINVAL;
-	}
-	regs->guemr = guemr;
-
-	return 0;
-}
-
-int ucc_init_guemr(struct ucc_common *regs)
+/* Configure the UCC to either Slow or Fast.
+ *
+ * A given UCC can be figured to support either "slow" devices (e.g. UART)
+ * or "fast" devices (e.g. Ethernet).
+ *
+ * 'ucc_num' is the UCC number, from 0 - 7.
+ *
+ * This function also sets the UCC_GUEMR_SET_RESERVED3 bit because that bit
+ * must always be set to 1.
+ */
+int ucc_set_type(unsigned int ucc_num, enum ucc_speed_type speed)
 {
-	u8 guemr = 0;
-
-	if (!regs)
-		return -EINVAL;
-
-	/* Set bit 3 (which is reserved in the GUEMR register) to 1 */
-	guemr = UCC_GUEMR_SET_RESERVED3;
-
-	regs->guemr = guemr;
-
-	return 0;
-}
+	u8 __iomem *guemr;
 
-static void get_cmxucr_reg(int ucc_num, volatile u32 ** p_cmxucr, u8 * reg_num,
-			   u8 * shift)
-{
+	/* The GUEMR register is at the same location for both slow and fast
+	   devices, so we just use uccX.slow.guemr. */
 	switch (ucc_num) {
-	case 0: *p_cmxucr = &(qe_immr->qmx.cmxucr1);
-		*reg_num = 1;
-		*shift = 16;
+	case 0: guemr = &qe_immr->ucc1.slow.guemr;
 		break;
-	case 2: *p_cmxucr = &(qe_immr->qmx.cmxucr1);
-		*reg_num = 1;
-		*shift = 0;
+	case 1: guemr = &qe_immr->ucc2.slow.guemr;
 		break;
-	case 4: *p_cmxucr = &(qe_immr->qmx.cmxucr2);
-		*reg_num = 2;
-		*shift = 16;
+	case 2: guemr = &qe_immr->ucc3.slow.guemr;
 		break;
-	case 6: *p_cmxucr = &(qe_immr->qmx.cmxucr2);
-		*reg_num = 2;
-		*shift = 0;
+	case 3: guemr = &qe_immr->ucc4.slow.guemr;
 		break;
-	case 1: *p_cmxucr = &(qe_immr->qmx.cmxucr3);
-		*reg_num = 3;
-		*shift = 16;
+	case 4: guemr = &qe_immr->ucc5.slow.guemr;
 		break;
-	case 3: *p_cmxucr = &(qe_immr->qmx.cmxucr3);
-		*reg_num = 3;
-		*shift = 0;
+	case 5: guemr = &qe_immr->ucc6.slow.guemr;
 		break;
-	case 5: *p_cmxucr = &(qe_immr->qmx.cmxucr4);
-		*reg_num = 4;
-		*shift = 16;
+	case 6: guemr = &qe_immr->ucc7.slow.guemr;
 		break;
-	case 7: *p_cmxucr = &(qe_immr->qmx.cmxucr4);
-		*reg_num = 4;
-		*shift = 0;
+	case 7: guemr = &qe_immr->ucc8.slow.guemr;
 		break;
 	default:
-		break;
+		return -EINVAL;
 	}
+
+	clrsetbits_8(guemr, UCC_GUEMR_MODE_MASK,
+		UCC_GUEMR_SET_RESERVED3 | speed);
+
+	return 0;
+}
+
+static void get_cmxucr_reg(unsigned int ucc_num, __be32 **cmxucr,
+	unsigned int *reg_num, unsigned int *shift)
+{
+	unsigned int cmx = ((ucc_num & 1) << 1) + (ucc_num > 3);
+
+	*reg_num = cmx + 1;
+	*cmxucr = &qe_immr->qmx.cmxucr[cmx];
+	*shift = 16 - 8 * (ucc_num & 2);
 }
 
-int ucc_mux_set_grant_tsa_bkpt(int ucc_num, int set, u32 mask)
+int ucc_mux_set_grant_tsa_bkpt(unsigned int ucc_num, int set, u32 mask)
 {
-	volatile u32 *p_cmxucr;
-	u8 reg_num;
-	u8 shift;
+	__be32 *cmxucr;
+	unsigned int reg_num;
+	unsigned int shift;
 
 	/* check if the UCC number is in range. */
-	if ((ucc_num > UCC_MAX_NUM - 1) || (ucc_num < 0))
+	if (ucc_num > UCC_MAX_NUM - 1)
 		return -EINVAL;
 
-	get_cmxucr_reg(ucc_num, &p_cmxucr, &reg_num, &shift);
+	get_cmxucr_reg(ucc_num, &cmxucr, &reg_num, &shift);
 
 	if (set)
-		out_be32(p_cmxucr, in_be32(p_cmxucr) | (mask << shift));
+		setbits32(cmxucr, mask << shift);
 	else
-		out_be32(p_cmxucr, in_be32(p_cmxucr) & ~(mask << shift));
+		clrbits32(cmxucr, mask << shift);
 
 	return 0;
 }
 
-int ucc_set_qe_mux_rxtx(int ucc_num, enum qe_clock clock, enum comm_dir mode)
+int ucc_set_qe_mux_rxtx(unsigned int ucc_num, enum qe_clock clock,
+	enum comm_dir mode)
 {
-	volatile u32 *p_cmxucr;
-	u8 reg_num;
-	u8 shift;
-	u32 clock_bits;
-	u32 clock_mask;
-	int source = -1;
+	__be32 *cmxucr;
+	unsigned int reg_num;
+	unsigned int shift;
+	u32 clock_bits = 0;
 
 	/* check if the UCC number is in range. */
-	if ((ucc_num > UCC_MAX_NUM - 1) || (ucc_num < 0))
+	if (ucc_num > UCC_MAX_NUM - 1)
 		return -EINVAL;
 
-	if (!((mode == COMM_DIR_RX) || (mode == COMM_DIR_TX))) {
-		printk(KERN_ERR
-		       "ucc_set_qe_mux_rxtx: bad comm mode type passed.");
+	/* The communications direction must be RX or TX */
+	if (!((mode == COMM_DIR_RX) || (mode == COMM_DIR_TX)))
 		return -EINVAL;
-	}
 
-	get_cmxucr_reg(ucc_num, &p_cmxucr, &reg_num, &shift);
+	get_cmxucr_reg(ucc_num, &cmxucr, &reg_num, &shift);
 
 	switch (reg_num) {
 	case 1:
 		switch (clock) {
-		case QE_BRG1:	source = 1; break;
-		case QE_BRG2:	source = 2; break;
-		case QE_BRG7:	source = 3; break;
-		case QE_BRG8:	source = 4; break;
-		case QE_CLK9:	source = 5; break;
-		case QE_CLK10:	source = 6; break;
-		case QE_CLK11:	source = 7; break;
-		case QE_CLK12:	source = 8; break;
-		case QE_CLK15:	source = 9; break;
-		case QE_CLK16:	source = 10; break;
-		default: 	source = -1; break;
+		case QE_BRG1:	clock_bits = 1; break;
+		case QE_BRG2:	clock_bits = 2; break;
+		case QE_BRG7:	clock_bits = 3; break;
+		case QE_BRG8:	clock_bits = 4; break;
+		case QE_CLK9:	clock_bits = 5; break;
+		case QE_CLK10:	clock_bits = 6; break;
+		case QE_CLK11:	clock_bits = 7; break;
+		case QE_CLK12:	clock_bits = 8; break;
+		case QE_CLK15:	clock_bits = 9; break;
+		case QE_CLK16:	clock_bits = 10; break;
+		default: break;
 		}
 		break;
 	case 2:
 		switch (clock) {
-		case QE_BRG5:	source = 1; break;
-		case QE_BRG6:	source = 2; break;
-		case QE_BRG7:	source = 3; break;
-		case QE_BRG8:	source = 4; break;
-		case QE_CLK13:	source = 5; break;
-		case QE_CLK14:	source = 6; break;
-		case QE_CLK19:	source = 7; break;
-		case QE_CLK20:	source = 8; break;
-		case QE_CLK15:	source = 9; break;
-		case QE_CLK16:	source = 10; break;
-		default: 	source = -1; break;
+		case QE_BRG5:	clock_bits = 1; break;
+		case QE_BRG6:	clock_bits = 2; break;
+		case QE_BRG7:	clock_bits = 3; break;
+		case QE_BRG8:	clock_bits = 4; break;
+		case QE_CLK13:	clock_bits = 5; break;
+		case QE_CLK14:	clock_bits = 6; break;
+		case QE_CLK19:	clock_bits = 7; break;
+		case QE_CLK20:	clock_bits = 8; break;
+		case QE_CLK15:	clock_bits = 9; break;
+		case QE_CLK16:	clock_bits = 10; break;
+		default: break;
 		}
 		break;
 	case 3:
 		switch (clock) {
-		case QE_BRG9:	source = 1; break;
-		case QE_BRG10:	source = 2; break;
-		case QE_BRG15:	source = 3; break;
-		case QE_BRG16:	source = 4; break;
-		case QE_CLK3:	source = 5; break;
-		case QE_CLK4:	source = 6; break;
-		case QE_CLK17:	source = 7; break;
-		case QE_CLK18:	source = 8; break;
-		case QE_CLK7:	source = 9; break;
-		case QE_CLK8:	source = 10; break;
-		case QE_CLK16:	source = 11; break;
-		default:	source = -1; break;
+		case QE_BRG9:	clock_bits = 1; break;
+		case QE_BRG10:	clock_bits = 2; break;
+		case QE_BRG15:	clock_bits = 3; break;
+		case QE_BRG16:	clock_bits = 4; break;
+		case QE_CLK3:	clock_bits = 5; break;
+		case QE_CLK4:	clock_bits = 6; break;
+		case QE_CLK17:	clock_bits = 7; break;
+		case QE_CLK18:	clock_bits = 8; break;
+		case QE_CLK7:	clock_bits = 9; break;
+		case QE_CLK8:	clock_bits = 10; break;
+		case QE_CLK16:	clock_bits = 11; break;
+		default: break;
 		}
 		break;
 	case 4:
 		switch (clock) {
-		case QE_BRG13:	source = 1; break;
-		case QE_BRG14:	source = 2; break;
-		case QE_BRG15:	source = 3; break;
-		case QE_BRG16:	source = 4; break;
-		case QE_CLK5:	source = 5; break;
-		case QE_CLK6:	source = 6; break;
-		case QE_CLK21:	source = 7; break;
-		case QE_CLK22:	source = 8; break;
-		case QE_CLK7:	source = 9; break;
-		case QE_CLK8:	source = 10; break;
-		case QE_CLK16:	source = 11; break;
-		default: 	source = -1; break;
+		case QE_BRG13:	clock_bits = 1; break;
+		case QE_BRG14:	clock_bits = 2; break;
+		case QE_BRG15:	clock_bits = 3; break;
+		case QE_BRG16:	clock_bits = 4; break;
+		case QE_CLK5:	clock_bits = 5; break;
+		case QE_CLK6:	clock_bits = 6; break;
+		case QE_CLK21:	clock_bits = 7; break;
+		case QE_CLK22:	clock_bits = 8; break;
+		case QE_CLK7:	clock_bits = 9; break;
+		case QE_CLK8:	clock_bits = 10; break;
+		case QE_CLK16:	clock_bits = 11; break;
+		default: break;
 		}
 		break;
-	default:
-		source = -1;
-		break;
+	default: break;
 	}
 
-	if (source == -1) {
-		printk(KERN_ERR
-		     "ucc_set_qe_mux_rxtx: Bad combination of clock and UCC.");
+	/* Check for invalid combination of clock and UCC number */
+	if (!clock_bits)
 		return -ENOENT;
-	}
 
-	clock_bits = (u32) source;
-	clock_mask = QE_CMXUCR_TX_CLK_SRC_MASK;
-	if (mode == COMM_DIR_RX) {
-		clock_bits <<= 4;  /* Rx field is 4 bits to left of Tx field */
-		clock_mask <<= 4;  /* Rx field is 4 bits to left of Tx field */
-	}
-	clock_bits <<= shift;
-	clock_mask <<= shift;
+	if (mode == COMM_DIR_RX)
+		shift += 4;
 
-	out_be32(p_cmxucr, (in_be32(p_cmxucr) & ~clock_mask) | clock_bits);
+	clrsetbits_be32(cmxucr, QE_CMXUCR_TX_CLK_SRC_MASK << shift,
+		clock_bits << shift);
 
 	return 0;
 }
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_fast.c b/arch/powerpc/sysdev/qe_lib/ucc_fast.c
index 3df202e8d332..3223acbc39e5 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc_fast.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc_fast.c
@@ -30,46 +30,45 @@
 
 void ucc_fast_dump_regs(struct ucc_fast_private * uccf)
 {
-	printk(KERN_INFO "UCC%d Fast registers:", uccf->uf_info->ucc_num);
-	printk(KERN_INFO "Base address: 0x%08x", (u32) uccf->uf_regs);
-
-	printk(KERN_INFO "gumr  : addr - 0x%08x, val - 0x%08x",
-		  (u32) & uccf->uf_regs->gumr, in_be32(&uccf->uf_regs->gumr));
-	printk(KERN_INFO "upsmr : addr - 0x%08x, val - 0x%08x",
-		  (u32) & uccf->uf_regs->upsmr, in_be32(&uccf->uf_regs->upsmr));
-	printk(KERN_INFO "utodr : addr - 0x%08x, val - 0x%04x",
-		  (u32) & uccf->uf_regs->utodr, in_be16(&uccf->uf_regs->utodr));
-	printk(KERN_INFO "udsr  : addr - 0x%08x, val - 0x%04x",
-		  (u32) & uccf->uf_regs->udsr, in_be16(&uccf->uf_regs->udsr));
-	printk(KERN_INFO "ucce  : addr - 0x%08x, val - 0x%08x",
-		  (u32) & uccf->uf_regs->ucce, in_be32(&uccf->uf_regs->ucce));
-	printk(KERN_INFO "uccm  : addr - 0x%08x, val - 0x%08x",
-		  (u32) & uccf->uf_regs->uccm, in_be32(&uccf->uf_regs->uccm));
-	printk(KERN_INFO "uccs  : addr - 0x%08x, val - 0x%02x",
-		  (u32) & uccf->uf_regs->uccs, uccf->uf_regs->uccs);
-	printk(KERN_INFO "urfb  : addr - 0x%08x, val - 0x%08x",
-		  (u32) & uccf->uf_regs->urfb, in_be32(&uccf->uf_regs->urfb));
-	printk(KERN_INFO "urfs  : addr - 0x%08x, val - 0x%04x",
-		  (u32) & uccf->uf_regs->urfs, in_be16(&uccf->uf_regs->urfs));
-	printk(KERN_INFO "urfet : addr - 0x%08x, val - 0x%04x",
-		  (u32) & uccf->uf_regs->urfet, in_be16(&uccf->uf_regs->urfet));
-	printk(KERN_INFO "urfset: addr - 0x%08x, val - 0x%04x",
-		  (u32) & uccf->uf_regs->urfset,
-		  in_be16(&uccf->uf_regs->urfset));
-	printk(KERN_INFO "utfb  : addr - 0x%08x, val - 0x%08x",
-		  (u32) & uccf->uf_regs->utfb, in_be32(&uccf->uf_regs->utfb));
-	printk(KERN_INFO "utfs  : addr - 0x%08x, val - 0x%04x",
-		  (u32) & uccf->uf_regs->utfs, in_be16(&uccf->uf_regs->utfs));
-	printk(KERN_INFO "utfet : addr - 0x%08x, val - 0x%04x",
-		  (u32) & uccf->uf_regs->utfet, in_be16(&uccf->uf_regs->utfet));
-	printk(KERN_INFO "utftt : addr - 0x%08x, val - 0x%04x",
-		  (u32) & uccf->uf_regs->utftt, in_be16(&uccf->uf_regs->utftt));
-	printk(KERN_INFO "utpt  : addr - 0x%08x, val - 0x%04x",
-		  (u32) & uccf->uf_regs->utpt, in_be16(&uccf->uf_regs->utpt));
-	printk(KERN_INFO "urtry : addr - 0x%08x, val - 0x%08x",
-		  (u32) & uccf->uf_regs->urtry, in_be32(&uccf->uf_regs->urtry));
-	printk(KERN_INFO "guemr : addr - 0x%08x, val - 0x%02x",
-		  (u32) & uccf->uf_regs->guemr, uccf->uf_regs->guemr);
+	printk(KERN_INFO "UCC%u Fast registers:\n", uccf->uf_info->ucc_num);
+	printk(KERN_INFO "Base address: 0x%p\n", uccf->uf_regs);
+
+	printk(KERN_INFO "gumr  : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->gumr, in_be32(&uccf->uf_regs->gumr));
+	printk(KERN_INFO "upsmr : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->upsmr, in_be32(&uccf->uf_regs->upsmr));
+	printk(KERN_INFO "utodr : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->utodr, in_be16(&uccf->uf_regs->utodr));
+	printk(KERN_INFO "udsr  : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->udsr, in_be16(&uccf->uf_regs->udsr));
+	printk(KERN_INFO "ucce  : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->ucce, in_be32(&uccf->uf_regs->ucce));
+	printk(KERN_INFO "uccm  : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->uccm, in_be32(&uccf->uf_regs->uccm));
+	printk(KERN_INFO "uccs  : addr=0x%p, val=0x%02x\n",
+		  &uccf->uf_regs->uccs, uccf->uf_regs->uccs);
+	printk(KERN_INFO "urfb  : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->urfb, in_be32(&uccf->uf_regs->urfb));
+	printk(KERN_INFO "urfs  : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->urfs, in_be16(&uccf->uf_regs->urfs));
+	printk(KERN_INFO "urfet : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->urfet, in_be16(&uccf->uf_regs->urfet));
+	printk(KERN_INFO "urfset: addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->urfset, in_be16(&uccf->uf_regs->urfset));
+	printk(KERN_INFO "utfb  : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->utfb, in_be32(&uccf->uf_regs->utfb));
+	printk(KERN_INFO "utfs  : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->utfs, in_be16(&uccf->uf_regs->utfs));
+	printk(KERN_INFO "utfet : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->utfet, in_be16(&uccf->uf_regs->utfet));
+	printk(KERN_INFO "utftt : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->utftt, in_be16(&uccf->uf_regs->utftt));
+	printk(KERN_INFO "utpt  : addr=0x%p, val=0x%04x\n",
+		  &uccf->uf_regs->utpt, in_be16(&uccf->uf_regs->utpt));
+	printk(KERN_INFO "urtry : addr=0x%p, val=0x%08x\n",
+		  &uccf->uf_regs->urtry, in_be32(&uccf->uf_regs->urtry));
+	printk(KERN_INFO "guemr : addr=0x%p, val=0x%02x\n",
+		  &uccf->uf_regs->guemr, uccf->uf_regs->guemr);
 }
 EXPORT_SYMBOL(ucc_fast_dump_regs);
 
@@ -149,55 +148,57 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
 
 	/* check if the UCC port number is in range. */
 	if ((uf_info->ucc_num < 0) || (uf_info->ucc_num > UCC_MAX_NUM - 1)) {
-		printk(KERN_ERR "%s: illegal UCC number", __FUNCTION__);
+		printk(KERN_ERR "%s: illegal UCC number\n", __FUNCTION__);
 		return -EINVAL;
 	}
 
 	/* Check that 'max_rx_buf_length' is properly aligned (4). */
 	if (uf_info->max_rx_buf_length & (UCC_FAST_MRBLR_ALIGNMENT - 1)) {
-		printk(KERN_ERR "%s: max_rx_buf_length not aligned", __FUNCTION__);
+		printk(KERN_ERR "%s: max_rx_buf_length not aligned\n",
+			__FUNCTION__);
 		return -EINVAL;
 	}
 
 	/* Validate Virtual Fifo register values */
 	if (uf_info->urfs < UCC_FAST_URFS_MIN_VAL) {
-		printk(KERN_ERR "%s: urfs is too small", __FUNCTION__);
+		printk(KERN_ERR "%s: urfs is too small\n", __FUNCTION__);
 		return -EINVAL;
 	}
 
 	if (uf_info->urfs & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
-		printk(KERN_ERR "%s: urfs is not aligned", __FUNCTION__);
+		printk(KERN_ERR "%s: urfs is not aligned\n", __FUNCTION__);
 		return -EINVAL;
 	}
 
 	if (uf_info->urfet & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
-		printk(KERN_ERR "%s: urfet is not aligned.", __FUNCTION__);
+		printk(KERN_ERR "%s: urfet is not aligned.\n", __FUNCTION__);
 		return -EINVAL;
 	}
 
 	if (uf_info->urfset & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
-		printk(KERN_ERR "%s: urfset is not aligned", __FUNCTION__);
+		printk(KERN_ERR "%s: urfset is not aligned\n", __FUNCTION__);
 		return -EINVAL;
 	}
 
 	if (uf_info->utfs & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
-		printk(KERN_ERR "%s: utfs is not aligned", __FUNCTION__);
+		printk(KERN_ERR "%s: utfs is not aligned\n", __FUNCTION__);
 		return -EINVAL;
 	}
 
 	if (uf_info->utfet & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
-		printk(KERN_ERR "%s: utfet is not aligned", __FUNCTION__);
+		printk(KERN_ERR "%s: utfet is not aligned\n", __FUNCTION__);
 		return -EINVAL;
 	}
 
 	if (uf_info->utftt & (UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT - 1)) {
-		printk(KERN_ERR "%s: utftt is not aligned", __FUNCTION__);
+		printk(KERN_ERR "%s: utftt is not aligned\n", __FUNCTION__);
 		return -EINVAL;
 	}
 
 	uccf = kzalloc(sizeof(struct ucc_fast_private), GFP_KERNEL);
 	if (!uccf) {
-		printk(KERN_ERR "%s: Cannot allocate private data", __FUNCTION__);
+		printk(KERN_ERR "%s: Cannot allocate private data\n",
+			__FUNCTION__);
 		return -ENOMEM;
 	}
 
@@ -206,7 +207,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
 	/* Set the PHY base address */
 	uccf->uf_regs = ioremap(uf_info->regs, sizeof(struct ucc_fast));
 	if (uccf->uf_regs == NULL) {
-		printk(KERN_ERR "%s: Cannot map UCC registers", __FUNCTION__);
+		printk(KERN_ERR "%s: Cannot map UCC registers\n", __FUNCTION__);
 		return -ENOMEM;
 	}
 
@@ -226,18 +227,10 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
 	uccf->rx_discarded = 0;
 #endif				/* STATISTICS */
 
-	/* Init Guemr register */
-	if ((ret = ucc_init_guemr((struct ucc_common *) (uf_regs)))) {
-		printk(KERN_ERR "%s: cannot init GUEMR", __FUNCTION__);
-		ucc_fast_free(uccf);
-		return ret;
-	}
-
 	/* Set UCC to fast type */
-	if ((ret = ucc_set_type(uf_info->ucc_num,
-				(struct ucc_common *) (uf_regs),
-				UCC_SPEED_TYPE_FAST))) {
-		printk(KERN_ERR "%s: cannot set UCC type", __FUNCTION__);
+	ret = ucc_set_type(uf_info->ucc_num, UCC_SPEED_TYPE_FAST);
+	if (ret) {
+		printk(KERN_ERR "%s: cannot set UCC type\n", __FUNCTION__);
 		ucc_fast_free(uccf);
 		return ret;
 	}
@@ -276,7 +269,8 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
 	uccf->ucc_fast_tx_virtual_fifo_base_offset =
 	    qe_muram_alloc(uf_info->utfs, UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT);
 	if (IS_ERR_VALUE(uccf->ucc_fast_tx_virtual_fifo_base_offset)) {
-		printk(KERN_ERR "%s: cannot allocate MURAM for TX FIFO", __FUNCTION__);
+		printk(KERN_ERR "%s: cannot allocate MURAM for TX FIFO\n",
+			__FUNCTION__);
 		uccf->ucc_fast_tx_virtual_fifo_base_offset = 0;
 		ucc_fast_free(uccf);
 		return -ENOMEM;
@@ -288,7 +282,8 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
 			   UCC_FAST_RECEIVE_VIRTUAL_FIFO_SIZE_FUDGE_FACTOR,
 			   UCC_FAST_VIRT_FIFO_REGS_ALIGNMENT);
 	if (IS_ERR_VALUE(uccf->ucc_fast_rx_virtual_fifo_base_offset)) {
-		printk(KERN_ERR "%s: cannot allocate MURAM for RX FIFO", __FUNCTION__);
+		printk(KERN_ERR "%s: cannot allocate MURAM for RX FIFO\n",
+			__FUNCTION__);
 		uccf->ucc_fast_rx_virtual_fifo_base_offset = 0;
 		ucc_fast_free(uccf);
 		return -ENOMEM;
@@ -318,7 +313,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
 		if ((uf_info->rx_clock != QE_CLK_NONE) &&
 		    ucc_set_qe_mux_rxtx(uf_info->ucc_num, uf_info->rx_clock,
 					COMM_DIR_RX)) {
-			printk(KERN_ERR "%s: illegal value for RX clock",
+			printk(KERN_ERR "%s: illegal value for RX clock\n",
 			       __FUNCTION__);
 			ucc_fast_free(uccf);
 			return -EINVAL;
@@ -327,7 +322,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
 		if ((uf_info->tx_clock != QE_CLK_NONE) &&
 		    ucc_set_qe_mux_rxtx(uf_info->ucc_num, uf_info->tx_clock,
 					COMM_DIR_TX)) {
-			printk(KERN_ERR "%s: illegal value for TX clock",
+			printk(KERN_ERR "%s: illegal value for TX clock\n",
 			       __FUNCTION__);
 			ucc_fast_free(uccf);
 			return -EINVAL;
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_slow.c b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
index 1f65c26ce63f..0174b3aeef8f 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc_slow.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
@@ -115,11 +115,15 @@ void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode)
 	out_be32(&us_regs->gumr_l, gumr_l);
 }
 
+/* Initialize the UCC for Slow operations
+ *
+ * The caller should initialize the following us_info
+ */
 int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** uccs_ret)
 {
 	struct ucc_slow_private *uccs;
 	u32 i;
-	struct ucc_slow *us_regs;
+	struct ucc_slow __iomem *us_regs;
 	u32 gumr;
 	struct qe_bd *bd;
 	u32 id;
@@ -131,7 +135,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
 
 	/* check if the UCC port number is in range. */
 	if ((us_info->ucc_num < 0) || (us_info->ucc_num > UCC_MAX_NUM - 1)) {
-		printk(KERN_ERR "%s: illegal UCC number", __FUNCTION__);
+		printk(KERN_ERR "%s: illegal UCC number\n", __FUNCTION__);
 		return -EINVAL;
 	}
 
@@ -143,13 +147,14 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
 	 */
 	if ((!us_info->rfw) &&
 		(us_info->max_rx_buf_length & (UCC_SLOW_MRBLR_ALIGNMENT - 1))) {
-		printk(KERN_ERR "max_rx_buf_length not aligned.");
+		printk(KERN_ERR "max_rx_buf_length not aligned.\n");
 		return -EINVAL;
 	}
 
 	uccs = kzalloc(sizeof(struct ucc_slow_private), GFP_KERNEL);
 	if (!uccs) {
-		printk(KERN_ERR "%s: Cannot allocate private data", __FUNCTION__);
+		printk(KERN_ERR "%s: Cannot allocate private data\n",
+			__FUNCTION__);
 		return -ENOMEM;
 	}
 
@@ -158,7 +163,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
 	/* Set the PHY base address */
 	uccs->us_regs = ioremap(us_info->regs, sizeof(struct ucc_slow));
 	if (uccs->us_regs == NULL) {
-		printk(KERN_ERR "%s: Cannot map UCC registers", __FUNCTION__);
+		printk(KERN_ERR "%s: Cannot map UCC registers\n", __FUNCTION__);
 		return -ENOMEM;
 	}
 
@@ -182,22 +187,14 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
 		return -ENOMEM;
 	}
 	id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
-	qe_issue_cmd(QE_ASSIGN_PAGE_TO_DEVICE, id, QE_CR_PROTOCOL_UNSPECIFIED,
+	qe_issue_cmd(QE_ASSIGN_PAGE_TO_DEVICE, id, us_info->protocol,
 		     uccs->us_pram_offset);
 
 	uccs->us_pram = qe_muram_addr(uccs->us_pram_offset);
 
-	/* Init Guemr register */
-	if ((ret = ucc_init_guemr((struct ucc_common *) us_regs))) {
-		printk(KERN_ERR "%s: cannot init GUEMR", __FUNCTION__);
-		ucc_slow_free(uccs);
-		return ret;
-	}
-
 	/* Set UCC to slow type */
-	if ((ret = ucc_set_type(us_info->ucc_num,
-				(struct ucc_common *) us_regs,
-				UCC_SPEED_TYPE_SLOW))) {
+	ret = ucc_set_type(us_info->ucc_num, UCC_SPEED_TYPE_SLOW);
+	if (ret) {
 		printk(KERN_ERR "%s: cannot set UCC type", __FUNCTION__);
 		ucc_slow_free(uccs);
 		return ret;
@@ -212,7 +209,8 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
 		qe_muram_alloc(us_info->rx_bd_ring_len * sizeof(struct qe_bd),
 				QE_ALIGNMENT_OF_BD);
 	if (IS_ERR_VALUE(uccs->rx_base_offset)) {
-		printk(KERN_ERR "%s: cannot allocate RX BDs", __FUNCTION__);
+		printk(KERN_ERR "%s: cannot allocate %u RX BDs\n", __FUNCTION__,
+			us_info->rx_bd_ring_len);
 		uccs->rx_base_offset = 0;
 		ucc_slow_free(uccs);
 		return -ENOMEM;
@@ -292,12 +290,12 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
 
 	/* if the data is in cachable memory, the 'global' */
 	/* in the function code should be set. */
-	uccs->us_pram->tfcr = uccs->us_pram->rfcr =
-		us_info->data_mem_part | QE_BMR_BYTE_ORDER_BO_MOT;
+	uccs->us_pram->tbmr = UCC_BMR_BO_BE;
+	uccs->us_pram->rbmr = UCC_BMR_BO_BE;
 
 	/* rbase, tbase are offsets from MURAM base */
-	out_be16(&uccs->us_pram->rbase, uccs->us_pram_offset);
-	out_be16(&uccs->us_pram->tbase, uccs->us_pram_offset);
+	out_be16(&uccs->us_pram->rbase, uccs->rx_base_offset);
+	out_be16(&uccs->us_pram->tbase, uccs->tx_base_offset);
 
 	/* Mux clocking */
 	/* Grant Support */
@@ -311,7 +309,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
 		/* Rx clock routing */
 		if (ucc_set_qe_mux_rxtx(us_info->ucc_num, us_info->rx_clock,
 					COMM_DIR_RX)) {
-			printk(KERN_ERR "%s: illegal value for RX clock",
+			printk(KERN_ERR "%s: illegal value for RX clock\n",
 			       __FUNCTION__);
 			ucc_slow_free(uccs);
 			return -EINVAL;
@@ -319,7 +317,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
 		/* Tx clock routing */
 		if (ucc_set_qe_mux_rxtx(us_info->ucc_num, us_info->tx_clock,
 					COMM_DIR_TX)) {
-			printk(KERN_ERR "%s: illegal value for TX clock",
+			printk(KERN_ERR "%s: illegal value for TX clock\n",
 			       __FUNCTION__);
 			ucc_slow_free(uccs);
 			return -EINVAL;
@@ -343,8 +341,8 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
 		command = QE_INIT_TX;
 	else
 		command = QE_INIT_RX;	/* We know at least one is TRUE */
-	id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num);
-	qe_issue_cmd(command, id, QE_CR_PROTOCOL_UNSPECIFIED, 0);
+
+	qe_issue_cmd(command, id, us_info->protocol, 0);
 
 	*uccs_ret = uccs;
 	return 0;