Merge branch 'master' of git://git.denx.de/u-boot-ppc4xx

7 files changed, 273 insertions, 120 deletions

diff --git a/cpu/ppc4xx/Makefile b/cpu/ppc4xx/Makefile
index 6f52dfd..2050b17 100644
--- a/cpu/ppc4xx/Makefile
+++ b/cpu/ppc4xx/Makefile
@@ -41,6 +41,9 @@ endif
 COBJS	+= 4xx_pci.o
 COBJS	+= 4xx_pcie.o
 COBJS	+= bedbug_405.o
+ifdef CONFIG_CMD_CHIP_CONFIG
+COBJS	+= cmd_chip_config.o
+endif
 COBJS	+= commproc.o
 COBJS	+= cpu.o
 COBJS	+= cpu_init.o
diff --git a/cpu/ppc4xx/cmd_chip_config.c b/cpu/ppc4xx/cmd_chip_config.c
new file mode 100644
index 0000000..d360d5b
--- /dev/null
+++ b/cpu/ppc4xx/cmd_chip_config.c
@@ -0,0 +1,142 @@
+/*
+ * (C) Copyright 2008-2009
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * (C) Copyright 2009
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <common.h>
+#include <command.h>
+#include <i2c.h>
+#include <asm/ppc4xx_config.h>
+#include <asm/io.h>
+
+static void print_configs(int cur_config_nr)
+{
+	int i;
+
+	for (i = 0; i < ppc4xx_config_count; i++) {
+		printf("%-16s - %s", ppc4xx_config_val[i].label,
+		       ppc4xx_config_val[i].description);
+		if (i == cur_config_nr)
+			printf(" ***");
+		printf("\n");
+	}
+
+}
+
+static int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	int i;
+	int ret;
+	int cur_config_nr = -1;
+	u8 cur_config[CONFIG_4xx_CONFIG_BLOCKSIZE];
+
+#ifdef CONFIG_CMD_EEPROM
+	ret = eeprom_read(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
+			  CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
+			  cur_config, CONFIG_4xx_CONFIG_BLOCKSIZE);
+#else
+	ret = i2c_read(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
+		       CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
+		       1, cur_config, CONFIG_4xx_CONFIG_BLOCKSIZE);
+#endif
+	if (ret) {
+		printf("Error reading EEPROM at addr 0x%x\n",
+		       CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
+		return -1;
+	}
+
+	/*
+	 * Search the current configuration
+	 */
+	for (i = 0; i < ppc4xx_config_count; i++) {
+		if (memcmp(cur_config, ppc4xx_config_val[i].val,
+			   CONFIG_4xx_CONFIG_BLOCKSIZE) == 0)
+			cur_config_nr = i;
+	}
+
+	if (cur_config_nr == -1) {
+		printf("Warning: The I2C bootstrap values don't match any"
+		       " of the available options!\n");
+		printf("I2C bootstrap EEPROM values are (I2C address 0x%02x):\n",
+			CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
+		for (i = 0; i < CONFIG_4xx_CONFIG_BLOCKSIZE; i++) {
+			printf("%02x ", cur_config[i]);
+		}
+		printf("\n");
+	}
+
+	if (argc < 2) {
+		printf("Available configurations (I2C address 0x%02x):\n",
+		       CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
+		print_configs(cur_config_nr);
+		return 0;
+	}
+
+	for (i = 0; i < ppc4xx_config_count; i++) {
+		/*
+		 * Search for configuration name/label
+		 */
+		if (strcmp(argv[1], ppc4xx_config_val[i].label) == 0) {
+			printf("Using configuration:\n%-16s - %s\n",
+			       ppc4xx_config_val[i].label,
+			       ppc4xx_config_val[i].description);
+
+#ifdef CONFIG_CMD_EEPROM
+			ret = eeprom_write(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
+					   CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
+					   ppc4xx_config_val[i].val,
+					   CONFIG_4xx_CONFIG_BLOCKSIZE);
+#else
+			ret = i2c_write(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
+					CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
+					1, ppc4xx_config_val[i].val,
+					CONFIG_4xx_CONFIG_BLOCKSIZE);
+#endif
+			udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
+			if (ret) {
+				printf("Error updating EEPROM at addr 0x%x\n",
+				       CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
+				return -1;
+			}
+
+			printf("done (dump via 'i2c md %x 0.1 %x')\n",
+			       CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
+			       CONFIG_4xx_CONFIG_BLOCKSIZE);
+			printf("Reset the board for the changes to"
+			       " take effect\n");
+			return 0;
+		}
+	}
+
+	printf("Configuration %s not found!\n", argv[1]);
+	print_configs(cur_config_nr);
+	return -1;
+}
+
+U_BOOT_CMD(
+	chip_config,	2,	0,	do_chip_config,
+	"program the I2C bootstrap EEPROM",
+	"[config-label]"
+);
diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c
index fb3837c..e12a784 100644
--- a/cpu/ppc4xx/cpu.c
+++ b/cpu/ppc4xx/cpu.c
@@ -272,7 +272,7 @@ static int do_chip_reset (unsigned long sys0, unsigned long sys1)
 	mtdcr (cpc0_sys0, sys0);
 	mtdcr (cpc0_sys1, sys1);
 	mtdcr (cntrl0, mfdcr (cntrl0) & ~0x80000000);	/* Clr SWE */
-	mtspr (dbcr0, 0x20000000);	/* Reset the chip */
+	mtspr (SPRN_DBCR0, 0x20000000);	/* Reset the chip */
 
 	return 1;
 }
@@ -654,12 +654,12 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	board_reset();
 #else
 #if defined(CONFIG_SYS_4xx_RESET_TYPE)
-	mtspr(dbcr0, CONFIG_SYS_4xx_RESET_TYPE << 28);
+	mtspr(SPRN_DBCR0, CONFIG_SYS_4xx_RESET_TYPE << 28);
 #else
 	/*
 	 * Initiate system reset in debug control register DBCR
 	 */
-	mtspr(dbcr0, 0x30000000);
+	mtspr(SPRN_DBCR0, 0x30000000);
 #endif /* defined(CONFIG_SYS_4xx_RESET_TYPE) */
 #endif /* defined(CONFIG_BOARD_RESET) */
 
@@ -697,7 +697,7 @@ void reset_4xx_watchdog(void)
 	/*
 	 * Clear TSR(WIS) bit
 	 */
-	mtspr(tsr, 0x40000000);
+	mtspr(SPRN_TSR, 0x40000000);
 }
 #endif	/* CONFIG_WATCHDOG */
 
diff --git a/cpu/ppc4xx/cpu_init.c b/cpu/ppc4xx/cpu_init.c
index bbd795d..65092fb 100644
--- a/cpu/ppc4xx/cpu_init.c
+++ b/cpu/ppc4xx/cpu_init.c
@@ -123,7 +123,7 @@ void reconfigure_pll(u32 new_cpu_freq)
 	/* Reset processor if configuration changed */
 	if (reset_needed) {
 		__asm__ __volatile__ ("sync; isync");
-		mtspr(dbcr0, 0x20000000);
+		mtspr(SPRN_DBCR0, 0x20000000);
 	}
 #endif
 }
diff --git a/cpu/ppc4xx/interrupts.c b/cpu/ppc4xx/interrupts.c
index 494bd8c..6db8421 100644
--- a/cpu/ppc4xx/interrupts.c
+++ b/cpu/ppc4xx/interrupts.c
@@ -102,15 +102,15 @@ int interrupt_init_cpu (unsigned *decrementer_count)
 	 * Init PIT
 	 */
 #if defined(CONFIG_440)
-	val = mfspr( tcr );
+	val = mfspr( SPRN_TCR );
 	val &= (~0x04400000);		/* clear DIS & ARE */
-	mtspr( tcr, val );
-	mtspr( dec, 0 );		/* Prevent exception after TSR clear*/
-	mtspr( decar, 0 );		/* clear reload */
-	mtspr( tsr, 0x08000000 );	/* clear DEC status */
+	mtspr( SPRN_TCR, val );
+	mtspr( SPRN_DEC, 0 );		/* Prevent exception after TSR clear*/
+	mtspr( SPRN_DECAR, 0 );		/* clear reload */
+	mtspr( SPRN_TSR, 0x08000000 );	/* clear DEC status */
 	val = gd->bd->bi_intfreq/1000;	/* 1 msec */
-	mtspr( decar, val );		/* Set auto-reload value */
-	mtspr( dec, val );		/* Set inital val */
+	mtspr( SPRN_DECAR, val );		/* Set auto-reload value */
+	mtspr( SPRN_DEC, val );		/* Set inital val */
 #else
 	set_pit(gd->bd->bi_intfreq / 1000);
 #endif
@@ -126,9 +126,9 @@ int interrupt_init_cpu (unsigned *decrementer_count)
 	/*
 	 * Enable PIT
 	 */
-	val = mfspr(tcr);
+	val = mfspr(SPRN_TCR);
 	val |= 0x04400000;
-	mtspr(tcr, val);
+	mtspr(SPRN_TCR, val);
 
 	/*
 	 * Set EVPR to 0
diff --git a/cpu/ppc4xx/speed.c b/cpu/ppc4xx/speed.c
index ed6e55b..c0a5824 100644
--- a/cpu/ppc4xx/speed.c
+++ b/cpu/ppc4xx/speed.c
@@ -394,7 +394,8 @@ void get_sys_info (sys_info_t *sysInfo)
 	sysInfo->freqUART = sysInfo->freqPLB;
 
 	/* Figure which timer source to use */
-	if (mfspr(ccr1) & 0x0080) { /* External Clock, assume same as SYS_CLK */
+	if (mfspr(SPRN_CCR1) & 0x0080) {
+		/* External Clock, assume same as SYS_CLK */
 		temp = sysInfo->freqProcessor / 2;  /* Max extern clock speed */
 		if (CONFIG_SYS_CLK_FREQ > temp)
 			sysInfo->freqTmrClk = temp;
@@ -867,6 +868,8 @@ void get_sys_info (PPC4xx_SYS_INFO * sysInfo)
 
 	sysInfo->freqEBC = sysInfo->freqPLB / sysInfo->pllExtBusDiv;
 
+	sysInfo->freqOPB = sysInfo->freqPLB / sysInfo->pllOpbDiv;
+
 	sysInfo->freqUART = sysInfo->freqProcessor * pllmr0_ccdv;
 }
 
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 582c781..60756c3 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -297,7 +297,7 @@ _start_440:
 	| Core bug fix.  Clear the esr
 	+-----------------------------------------------------------------*/
 	li	r0,0
-	mtspr	esr,r0
+	mtspr	SPRN_ESR,r0
 	/*----------------------------------------------------------------*/
 	/* Clear and set up some registers. */
 	/*----------------------------------------------------------------*/
@@ -305,16 +305,16 @@ _start_440:
 	dccci	r0,r0		/* NOTE: operands not used for 440 */
 	sync
 	li	r0,0
-	mtspr	srr0,r0
-	mtspr	srr1,r0
-	mtspr	csrr0,r0
-	mtspr	csrr1,r0
+	mtspr	SPRN_SRR0,r0
+	mtspr	SPRN_SRR1,r0
+	mtspr	SPRN_CSRR0,r0
+	mtspr	SPRN_CSRR1,r0
 	/* NOTE: 440GX adds machine check status regs */
 #if defined(CONFIG_440) && !defined(CONFIG_440GP)
-	mtspr	mcsrr0,r0
-	mtspr	mcsrr1,r0
-	mfspr	r1,mcsr
-	mtspr	mcsr,r1
+	mtspr	SPRN_MCSRR0,r0
+	mtspr	SPRN_MCSRR1,r0
+	mfspr	r1,SPRN_MCSR
+	mtspr	SPRN_MCSR,r1
 #endif
 
 	/*----------------------------------------------------------------*/
@@ -326,27 +326,27 @@ _start_440:
 	*/
 	lis	r1,0x0030	/* store gathering & broadcast disable */
 	ori	r1,r1,0x6000	/* cache touch */
-	mtspr	ccr0,r1
+	mtspr	SPRN_CCR0,r1
 
 	/*----------------------------------------------------------------*/
 	/* Initialize debug */
 	/*----------------------------------------------------------------*/
-	mfspr	r1,dbcr0
+	mfspr	r1,SPRN_DBCR0
 	andis.	r1, r1, 0x8000	/* test DBCR0[EDM] bit			*/
 	bne	skip_debug_init	/* if set, don't clear debug register	*/
-	mtspr	dbcr0,r0
-	mtspr	dbcr1,r0
-	mtspr	dbcr2,r0
-	mtspr	iac1,r0
-	mtspr	iac2,r0
-	mtspr	iac3,r0
-	mtspr	dac1,r0
-	mtspr	dac2,r0
-	mtspr	dvc1,r0
-	mtspr	dvc2,r0
-
-	mfspr	r1,dbsr
-	mtspr	dbsr,r1		/* Clear all valid bits */
+	mtspr	SPRN_DBCR0,r0
+	mtspr	SPRN_DBCR1,r0
+	mtspr	SPRN_DBCR2,r0
+	mtspr	SPRN_IAC1,r0
+	mtspr	SPRN_IAC2,r0
+	mtspr	SPRN_IAC3,r0
+	mtspr	SPRN_DAC1,r0
+	mtspr	SPRN_DAC2,r0
+	mtspr	SPRN_DVC1,r0
+	mtspr	SPRN_DVC2,r0
+
+	mfspr	r1,SPRN_DBSR
+	mtspr	SPRN_DBSR,r1	/* Clear all valid bits */
 skip_debug_init:
 
 #if defined (CONFIG_440SPE)
@@ -364,68 +364,68 @@ skip_debug_init:
 	| j. TCS:    Timebase increments from CPU clock.
 	+-----------------------------------------------------------------*/
 	li	r0,0
-	mtspr	ccr1, r0
+	mtspr	SPRN_CCR1, r0
 
 	/*----------------------------------------------------------------+
 	| Reset the timebase.
 	| The previous write to CCR1 sets the timebase source.
 	+-----------------------------------------------------------------*/
-	mtspr	tbl, r0
-	mtspr	tbu, r0
+	mtspr	SPRN_TBWL, r0
+	mtspr	SPRN_TBWU, r0
 #endif
 
 	/*----------------------------------------------------------------*/
 	/* Setup interrupt vectors */
 	/*----------------------------------------------------------------*/
-	mtspr	ivpr,r0		/* Vectors start at 0x0000_0000 */
+	mtspr	SPRN_IVPR,r0		/* Vectors start at 0x0000_0000 */
 	li	r1,0x0100
-	mtspr	ivor0,r1	/* Critical input */
+	mtspr	SPRN_IVOR0,r1	/* Critical input */
 	li	r1,0x0200
-	mtspr	ivor1,r1	/* Machine check */
+	mtspr	SPRN_IVOR1,r1	/* Machine check */
 	li	r1,0x0300
-	mtspr	ivor2,r1	/* Data storage */
+	mtspr	SPRN_IVOR2,r1	/* Data storage */
 	li	r1,0x0400
-	mtspr	ivor3,r1	/* Instruction storage */
+	mtspr	SPRN_IVOR3,r1	/* Instruction storage */
 	li	r1,0x0500
-	mtspr	ivor4,r1	/* External interrupt */
+	mtspr	SPRN_IVOR4,r1	/* External interrupt */
 	li	r1,0x0600
-	mtspr	ivor5,r1	/* Alignment */
+	mtspr	SPRN_IVOR5,r1	/* Alignment */
 	li	r1,0x0700
-	mtspr	ivor6,r1	/* Program check */
+	mtspr	SPRN_IVOR6,r1	/* Program check */
 	li	r1,0x0800
-	mtspr	ivor7,r1	/* Floating point unavailable */
+	mtspr	SPRN_IVOR7,r1	/* Floating point unavailable */
 	li	r1,0x0c00
-	mtspr	ivor8,r1	/* System call */
+	mtspr	SPRN_IVOR8,r1	/* System call */
 	li	r1,0x0a00
-	mtspr	ivor9,r1	/* Auxiliary Processor unavailable */
+	mtspr	SPRN_IVOR9,r1	/* Auxiliary Processor unavailable */
 	li	r1,0x0900
-	mtspr	ivor10,r1	/* Decrementer */
+	mtspr	SPRN_IVOR10,r1	/* Decrementer */
 	li	r1,0x1300
-	mtspr	ivor13,r1	/* Data TLB error */
+	mtspr	SPRN_IVOR13,r1	/* Data TLB error */
 	li	r1,0x1400
-	mtspr	ivor14,r1	/* Instr TLB error */
+	mtspr	SPRN_IVOR14,r1	/* Instr TLB error */
 	li	r1,0x2000
-	mtspr	ivor15,r1	/* Debug */
+	mtspr	SPRN_IVOR15,r1	/* Debug */
 
 	/*----------------------------------------------------------------*/
 	/* Configure cache regions  */
 	/*----------------------------------------------------------------*/
-	mtspr	inv0,r0
-	mtspr	inv1,r0
-	mtspr	inv2,r0
-	mtspr	inv3,r0
-	mtspr	dnv0,r0
-	mtspr	dnv1,r0
-	mtspr	dnv2,r0
-	mtspr	dnv3,r0
-	mtspr	itv0,r0
-	mtspr	itv1,r0
-	mtspr	itv2,r0
-	mtspr	itv3,r0
-	mtspr	dtv0,r0
-	mtspr	dtv1,r0
-	mtspr	dtv2,r0
-	mtspr	dtv3,r0
+	mtspr	SPRN_INV0,r0
+	mtspr	SPRN_INV1,r0
+	mtspr	SPRN_INV2,r0
+	mtspr	SPRN_INV3,r0
+	mtspr	SPRN_DNV0,r0
+	mtspr	SPRN_DNV1,r0
+	mtspr	SPRN_DNV2,r0
+	mtspr	SPRN_DNV3,r0
+	mtspr	SPRN_ITV0,r0
+	mtspr	SPRN_ITV1,r0
+	mtspr	SPRN_ITV2,r0
+	mtspr	SPRN_ITV3,r0
+	mtspr	SPRN_DTV0,r0
+	mtspr	SPRN_DTV1,r0
+	mtspr	SPRN_DTV2,r0
+	mtspr	SPRN_DTV3,r0
 
 	/*----------------------------------------------------------------*/
 	/* Cache victim limits */
@@ -434,25 +434,30 @@ skip_debug_init:
 	*/
 	lis	r1,0x0001
 	ori	r1,r1,0xf800
-	mtspr	ivlim,r1
-	mtspr	dvlim,r1
+	mtspr	SPRN_IVLIM,r1
+	mtspr	SPRN_DVLIM,r1
 
 	/*----------------------------------------------------------------+
 	|Initialize MMUCR[STID] = 0.
 	+-----------------------------------------------------------------*/
-	mfspr	r0,mmucr
+	mfspr	r0,SPRN_MMUCR
 	addis	r1,0,0xFFFF
 	ori	r1,r1,0xFF00
 	and	r0,r0,r1
-	mtspr	mmucr,r0
+	mtspr	SPRN_MMUCR,r0
 
 	/*----------------------------------------------------------------*/
 	/* Clear all TLB entries -- TID = 0, TS = 0 */
 	/*----------------------------------------------------------------*/
 	addis	r0,0,0x0000
-	li	r1,0x003f	/* 64 TLB entries */
-	mtctr	r1
+#ifdef CONFIG_SYS_RAMBOOT
 	li	r4,0		/* Start with TLB #0 */
+#else
+	li	r4,1		/* Start with TLB #1 */
+#endif
+	li	r1,64		/* 64 TLB entries */
+	sub	r1,r1,r4	/* calculate last TLB # */
+	mtctr	r1
 rsttlb:
 #ifdef CONFIG_SYS_RAMBOOT
 	tlbre	r3,r4,0		/* Read contents from TLB word #0 to get EPN */
@@ -516,9 +521,9 @@ tlbnx2:	addi	r4,r4,1		/* Next TLB */
 	b	_start
 
 3:	li	r0,0
-	mtspr	srr1,r0		/* Keep things disabled for now */
+	mtspr	SPRN_SRR1,r0		/* Keep things disabled for now */
 	mflr	r1
-	mtspr	srr0,r1
+	mtspr	SPRN_SRR0,r1
 	rfi
 #endif /* CONFIG_440 */
 
@@ -622,12 +627,12 @@ _start:
 	/*----------------------------------------------------------------*/
 	li	r0,0x0000
 	lis	r1,0xffff
-	mtspr	dec,r0			/* prevent dec exceptions */
-	mtspr	tbl,r0			/* prevent fit & wdt exceptions */
-	mtspr	tbu,r0
-	mtspr	tsr,r1			/* clear all timer exception status */
-	mtspr	tcr,r0			/* disable all */
-	mtspr	esr,r0			/* clear exception syndrome register */
+	mtspr	SPRN_DEC,r0			/* prevent dec exceptions */
+	mtspr	SPRN_TBWL,r0			/* prevent fit & wdt exceptions */
+	mtspr	SPRN_TBWU,r0
+	mtspr	SPRN_TSR,r1			/* clear all timer exception status */
+	mtspr	SPRN_TCR,r0			/* disable all */
+	mtspr	SPRN_ESR,r0			/* clear exception syndrome register */
 	mtxer	r0			/* clear integer exception register */
 
 	/*----------------------------------------------------------------*/
@@ -638,10 +643,10 @@ _start:
 #if defined(CONFIG_SYS_INIT_DBCR)
 	lis	r1,0xffff
 	ori	r1,r1,0xffff
-	mtspr	dbsr,r1			/* Clear all status bits */
+	mtspr	SPRN_DBSR,r1			/* Clear all status bits */
 	lis	r0,CONFIG_SYS_INIT_DBCR@h
 	ori	r0,r0,CONFIG_SYS_INIT_DBCR@l
-	mtspr	dbcr0,r0
+	mtspr	SPRN_DBCR0,r0
 	isync
 #endif
 
@@ -680,17 +685,17 @@ _start:
 	/* 8. set TFLOOR/NFLOOR to 8 (-> 8*16*32 bytes locked -> 4k) */
 	lis	r1,0x0201
 	ori	r1,r1,0xf808
-	mtspr	dvlim,r1
+	mtspr	SPRN_DVLIM,r1
 	lis	r1,0x0808
 	ori	r1,r1,0x0808
-	mtspr	dnv0,r1
-	mtspr	dnv1,r1
-	mtspr	dnv2,r1
-	mtspr	dnv3,r1
-	mtspr	dtv0,r1
-	mtspr	dtv1,r1
-	mtspr	dtv2,r1
-	mtspr	dtv3,r1
+	mtspr	SPRN_DNV0,r1
+	mtspr	SPRN_DNV1,r1
+	mtspr	SPRN_DNV2,r1
+	mtspr	SPRN_DNV3,r1
+	mtspr	SPRN_DTV0,r1
+	mtspr	SPRN_DTV1,r1
+	mtspr	SPRN_DTV2,r1
+	mtspr	SPRN_DTV3,r1
 	msync
 	isync
 #endif /* CONFIG_SYS_INIT_RAM_DCACHE */
@@ -809,7 +814,7 @@ _start:
 	/* Set up some machine state registers. */
 	/*----------------------------------------------------------------------- */
 	addi	r0,r0,0x0000		/* initialize r0 to zero */
-	mtspr	esr,r0			/* clear Exception Syndrome Reg */
+	mtspr	SPRN_ESR,r0		/* clear Exception Syndrome Reg */
 	mttcr	r0			/* timer control register */
 	mtexier r0			/* disable all interrupts */
 	addis	r4,r0,0xFFFF		/* set r4 to 0xFFFFFFFF (status in the */
@@ -919,7 +924,7 @@ _start:
 	/*----------------------------------------------------------------------- */
 	addi	r4,r0,0x0000
 #if !defined(CONFIG_405EX)
-	mtspr	sgr,r4
+	mtspr	SPRN_SGR,r4
 #else
 	/*
 	 * On 405EX, completely clearing the SGR leads to PPC hangup
@@ -928,9 +933,9 @@ _start:
 	 */
 	lis	r3,0x0000
 	ori	r3,r3,0x7FFC
-	mtspr	sgr,r3
+	mtspr	SPRN_SGR,r3
 #endif
-	mtspr	dcwr,r4
+	mtspr	SPRN_DCWR,r4
 	mtesr	r4			/* clear Exception Syndrome Reg */
 	mttcr	r4			/* clear Timer Control Reg */
 	mtxer	r4			/* clear Fixed-Point Exception Reg */
@@ -1266,8 +1271,8 @@ crit_return:
 	REST_GPR(31, r1)
 	lwz	r2,_NIP(r1)	/* Restore environment */
 	lwz	r0,_MSR(r1)
-	mtspr	csrr0,r2
-	mtspr	csrr1,r0
+	mtspr	SPRN_CSRR0,r2
+	mtspr	SPRN_CSRR1,r0
 	lwz	r0,GPR0(r1)
 	lwz	r2,GPR2(r1)
 	lwz	r1,GPR1(r1)
@@ -1297,8 +1302,8 @@ mck_return:
 	REST_GPR(31, r1)
 	lwz	r2,_NIP(r1)	/* Restore environment */
 	lwz	r0,_MSR(r1)
-	mtspr	mcsrr0,r2
-	mtspr	mcsrr1,r0
+	mtspr	SPRN_MCSRR0,r2
+	mtspr	SPRN_MCSRR1,r0
 	lwz	r0,GPR0(r1)
 	lwz	r2,GPR2(r1)
 	lwz	r1,GPR1(r1)
@@ -1448,17 +1453,17 @@ relocate_code:
 	/* set TFLOOR/NFLOOR to 0 again */
 	lis	r6,0x0001
 	ori	r6,r6,0xf800
-	mtspr	dvlim,r6
+	mtspr	SPRN_DVLIM,r6
 	lis	r6,0x0000
 	ori	r6,r6,0x0000
-	mtspr	dnv0,r6
-	mtspr	dnv1,r6
-	mtspr	dnv2,r6
-	mtspr	dnv3,r6
-	mtspr	dtv0,r6
-	mtspr	dtv1,r6
-	mtspr	dtv2,r6
-	mtspr	dtv3,r6
+	mtspr	SPRN_DNV0,r6
+	mtspr	SPRN_DNV1,r6
+	mtspr	SPRN_DNV2,r6
+	mtspr	SPRN_DNV3,r6
+	mtspr	SPRN_DTV0,r6
+	mtspr	SPRN_DTV1,r6
+	mtspr	SPRN_DTV2,r6
+	mtspr	SPRN_DTV3,r6
 	msync
 	isync
 #endif /* CONFIG_SYS_INIT_RAM_DCACHE */
@@ -1478,8 +1483,8 @@ relocate_code:
 	isync
 
 	/* Clear all potential pending exceptions */
-	mfspr	r1,mcsr
-	mtspr	mcsr,r1
+	mfspr	r1,SPRN_MCSR
+	mtspr	SPRN_MCSR,r1
 #ifdef CONFIG_SYS_TLB_FOR_BOOT_FLASH
 	addi	r1,r0,CONFIG_SYS_TLB_FOR_BOOT_FLASH	/* Use defined TLB */
 #else
@@ -1723,9 +1728,9 @@ trap_init:
 __440_msr_set:
 	addi	r7,r0,0x1000		/* set ME bit (Machine Exceptions) */
 	oris	r7,r7,0x0002		/* set CE bit (Critical Exceptions) */
-	mtspr	srr1,r7
+	mtspr	SPRN_SRR1,r7
 	mflr	r7
-	mtspr	srr0,r7
+	mtspr	SPRN_SRR0,r7
 	rfi
 __440_msr_continue:
 #endif
@@ -2059,7 +2064,7 @@ pll_wait:
 	 * Not sure if this is needed...
 	 */
 	addis r3,0,0x1000
-	mtspr dbcr0,r3			/* This will cause a CPU core reset, and */
+	mtspr SPRN_DBCR0,r3		/* This will cause a CPU core reset, and */
 					/* execution will continue from the poweron */
 					/* vector of 0xfffffffc */
 #endif /* CONFIG_405EP */