* Add support for IceCube board (with MGT5100 and MPC5200 CPUs)

* Add support for MGT5100 and MPC5200 processors

3 files changed, 161 insertions, 161 deletions

diff --git a/board/exbitgen/flash.c b/board/exbitgen/flash.c
index f687ea3..ae88994 100644
--- a/board/exbitgen/flash.c
+++ b/board/exbitgen/flash.c
@@ -217,7 +217,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 	short i;
 	FLASH_WORD_SIZE value;
 	ulong base = (ulong)addr;
-        volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)addr;
+	volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)addr;
 
 	/* Write auto select command: read Manufacturer ID */
 	addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
@@ -247,7 +247,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 
 	switch (value) {
 	case (FLASH_WORD_SIZE)AMD_ID_F040B:
-	        info->flash_id += FLASH_AM040;
+		info->flash_id += FLASH_AM040;
 		info->sector_count = 8;
 		info->size = 0x0080000; /* => 512 ko */
 		break;
@@ -335,14 +335,14 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 	}
 
 	/* set up sector start address table */
-        if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
+	if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
 		(info->flash_id  == FLASH_AM040) ||
 		(info->flash_id == FLASH_AMDLV033C) ||
 		(info->flash_id == FLASH_AMDLV065D)) {
 		ulong sectsize = info->size / info->sector_count;
 		for (i = 0; i < info->sector_count; i++)
 			info->start[i] = base + (i * sectsize);
-        } else {
+	} else {
 	    if (info->flash_id & FLASH_BTYPE) {
 		/* set sector offsets for bottom boot block type	*/
 		info->start[0] = base + 0x00000000;
@@ -370,9 +370,9 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 		/* D0 = 1 if protected */
 
 		addr2 = (volatile FLASH_WORD_SIZE *)(info->start[i]);
-                if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
+		if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
 			info->protect[i] = 0;
-                else
+		else
 			info->protect[i] = addr2[2] & 1;
 	}
 
@@ -450,7 +450,7 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
 			while ((addr2[0] & 0x00800080) !=
 				(FLASH_WORD_SIZE) 0x00800080) {
 				if ((now=get_timer(start)) >
-				           CFG_FLASH_ERASE_TOUT) {
+					   CFG_FLASH_ERASE_TOUT) {
 					printf ("Timeout\n");
 					addr[0] = (FLASH_WORD_SIZE)0x00F000F0;
 					return 1;
@@ -551,12 +551,12 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
  */
 static int write_word (flash_info_t *info, ulong dest, ulong data)
 {
-        volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)(info->start[0]);
-        volatile FLASH_WORD_SIZE *dest2 = (FLASH_WORD_SIZE *)dest;
-        volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *)&data;
+	volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)(info->start[0]);
+	volatile FLASH_WORD_SIZE *dest2 = (FLASH_WORD_SIZE *)dest;
+	volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *)&data;
 	ulong start;
 	int flag;
-        int i;
+	int i;
 
 	/* Check if Flash is (sufficiently) erased */
 	if ((*((volatile ulong *)dest) & data) != data) {
@@ -565,7 +565,7 @@ static int write_word (flash_info_t *info, ulong dest, ulong data)
 		return 2;
 	}
 
-        for (i=0; i < 4/sizeof(FLASH_WORD_SIZE); i++) {
+	for (i=0; i < 4/sizeof(FLASH_WORD_SIZE); i++) {
 		/* Disable interrupts which might cause a timeout here */
 		flag = disable_interrupts();
 
diff --git a/board/exbitgen/init.S b/board/exbitgen/init.S
index 96b0aba..0e6cd04 100644
--- a/board/exbitgen/init.S
+++ b/board/exbitgen/init.S
@@ -34,7 +34,7 @@
 #include <asm/mmu.h>
 
 #include "exbitgen.h"
-		
+
 /* IIC declarations (This is an extract from 405gp_i2c.h, which also contains some */
 /* c-code declarations and consequently can't be included here). */
 /* (Possibly to be solved somehow else). */
@@ -100,25 +100,25 @@
 #define TIMEBASE_10PS (1000000000 / CONFIG_SYS_CLK_FREQ) * 100
 
 #define FLASH_8bit_AP   0x9B015480
-#define FLASH_8bit_CR   0xFFF18000 /* 1MB(min), 8bit, R/W */ 
+#define FLASH_8bit_CR   0xFFF18000 /* 1MB(min), 8bit, R/W */
 
 #define FLASH_32bit_AP  0x9B015480
 #define FLASH_32bit_CR  0xFFE3C000 /* 2MB, 32bit, R/W */
 
 
 #define WDCR_EBC(reg,val) addi    r4,0,reg;\
-        mtdcr   ebccfga,r4;\
-        addis   r4,0,val@h;\
-        ori     r4,r4,val@l;\
-        mtdcr   ebccfgd,r4
+	mtdcr   ebccfga,r4;\
+	addis   r4,0,val@h;\
+	ori     r4,r4,val@l;\
+	mtdcr   ebccfgd,r4
 
 /*---------------------------------------------------------------------
  * Function:     ext_bus_cntlr_init
- * Description:  Initializes the External Bus Controller for the external 
- *		peripherals. IMPORTANT: For pass1 this code must run from 
+ * Description:  Initializes the External Bus Controller for the external
+ *		peripherals. IMPORTANT: For pass1 this code must run from
  *		cache since you can not reliably change a peripheral banks
  *		timing register (pbxap) while running code from that bank.
- *		For ex., since we are running from ROM on bank 0, we can NOT 
+ *		For ex., since we are running from ROM on bank 0, we can NOT
  *		execute the code that modifies bank 0 timings from ROM, so
  *		we run it from cache.
  *	Bank 0 - Boot flash
@@ -126,63 +126,63 @@
  *	Bank 5 - CPLD
  *	Bank 6 - not used
  *	Bank 7 - Heathrow chip
- *---------------------------------------------------------------------	
+ *---------------------------------------------------------------------
  */
-     	.globl	ext_bus_cntlr_init
+	.globl	ext_bus_cntlr_init
 ext_bus_cntlr_init:
-        mflr    r4                      /* save link register */
-        bl      ..getAddr
+	mflr    r4                      /* save link register */
+	bl      ..getAddr
 ..getAddr:
-        mflr    r3                      /* get address of ..getAddr */
-        mtlr    r4                      /* restore link register */
-        addi    r4,0,14                 /* set ctr to 10; used to prefetch */
-        mtctr   r4                      /* 10 cache lines to fit this function */
-                                        /* in cache (gives us 8x10=80 instrctns) */
+	mflr    r3                      /* get address of ..getAddr */
+	mtlr    r4                      /* restore link register */
+	addi    r4,0,14                 /* set ctr to 10; used to prefetch */
+	mtctr   r4                      /* 10 cache lines to fit this function */
+					/* in cache (gives us 8x10=80 instrctns) */
 ..ebcloop:
-        icbt    r0,r3                   /* prefetch cache line for addr in r3 */
-        addi    r3,r3,32		/* move to next cache line */
-        bdnz    ..ebcloop               /* continue for 10 cache lines */
+	icbt    r0,r3                   /* prefetch cache line for addr in r3 */
+	addi    r3,r3,32		/* move to next cache line */
+	bdnz    ..ebcloop               /* continue for 10 cache lines */
 
 	mflr	r31			/* save link register */
-	
-        /*-----------------------------------------------------------
-         * Delay to ensure all accesses to ROM are complete before changing
+
+	/*-----------------------------------------------------------
+	 * Delay to ensure all accesses to ROM are complete before changing
 	 * bank 0 timings. 200usec should be enough.
-         *   200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles
-         *-----------------------------------------------------------
+	 *   200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles
+	 *-----------------------------------------------------------
 	 */
 
 	addis	r3,0,0x0
-        ori     r3,r3,0xA000          /* ensure 200usec have passed since reset */
-        mtctr   r3
+	ori     r3,r3,0xA000          /* ensure 200usec have passed since reset */
+	mtctr   r3
 ..spinlp:
-        bdnz    ..spinlp                /* spin loop */
+	bdnz    ..spinlp                /* spin loop */
 
-        /*---------------------------------------------------------------
-         * Memory Bank 0 (Boot Flash) initialization
-         *---------------------------------------------------------------
+	/*---------------------------------------------------------------
+	 * Memory Bank 0 (Boot Flash) initialization
+	 *---------------------------------------------------------------
 	 */
 	WDCR_EBC(pb0ap, FLASH_32bit_AP)
 	WDCR_EBC(pb0cr, 0xffe38000)
 /*pnc	WDCR_EBC(pb0cr, FLASH_32bit_CR) */
-	
-        /*---------------------------------------------------------------
-         * Memory Bank 5 (CPLD) initialization
-         *---------------------------------------------------------------
+
+	/*---------------------------------------------------------------
+	 * Memory Bank 5 (CPLD) initialization
+	 *---------------------------------------------------------------
 	 */
 	WDCR_EBC(pb5ap, 0x01010040)
 /*jsa recommendation:		WDCR_EBC(pb5ap, 0x00010040) */
 	WDCR_EBC(pb5cr, 0x10038000)
 
-        /*--------------------------------------------------------------- */
-        /* Memory Bank 6 (not used) initialization */
-        /*--------------------------------------------------------------- */
+	/*--------------------------------------------------------------- */
+	/* Memory Bank 6 (not used) initialization */
+	/*--------------------------------------------------------------- */
 	WDCR_EBC(pb6cr, 0x00000000)
 
 	/* Read HW ID to determine whether old H2 board or new generic CPU board */
 	addis	r3, 0,  HW_ID_ADDR@h
 	ori	r3, r3, HW_ID_ADDR@l
-        lbz     r3,0x0000(r3)
+	lbz     r3,0x0000(r3)
 	cmpi	0, r3, 1          /* if (HW_ID==1) */
 	beq 	setup_h2evalboard /* then jump */
 	cmpi	0, r3, 2          /* if (HW_ID==2) */
@@ -191,9 +191,9 @@ ext_bus_cntlr_init:
 	beq 	setup_genieboard  /* then jump */
 
 setup_genieboard:
-        /*--------------------------------------------------------------- */
-        /* Memory Bank 1 (Application Flash) initialization for generic CPU board */
-        /*--------------------------------------------------------------- */
+	/*--------------------------------------------------------------- */
+	/* Memory Bank 1 (Application Flash) initialization for generic CPU board */
+	/*--------------------------------------------------------------- */
 /*	WDCR_EBC(pb1ap, 0x7b015480)	/###* T.B.M. */
 /*	WDCR_EBC(pb1ap, 0x7F8FFE80)	/###* T.B.M. */
 	WDCR_EBC(pb1ap, 0x9b015480)	/* hlb-20020207: burst 8 bit 6 cycles  */
@@ -201,68 +201,68 @@ setup_genieboard:
 /*	WDCR_EBC(pb1cr, 0x20098000)	/###* 16 MB */
 	WDCR_EBC(pb1cr, 0x200B8000)	/* 32 MB */
 
-        /*--------------------------------------------------------------- */
-        /* Memory Bank 4 (Onboard FPGA) initialization for generic CPU board */
-        /*--------------------------------------------------------------- */
+	/*--------------------------------------------------------------- */
+	/* Memory Bank 4 (Onboard FPGA) initialization for generic CPU board */
+	/*--------------------------------------------------------------- */
 	WDCR_EBC(pb4ap, 0x01010000)	/*  */
 	WDCR_EBC(pb4cr, 0x1021c000)	/*  */
 
-        /*--------------------------------------------------------------- */
-        /* Memory Bank 7 (Heathrow chip on Reference board) initialization */
-        /*--------------------------------------------------------------- */
+	/*--------------------------------------------------------------- */
+	/* Memory Bank 7 (Heathrow chip on Reference board) initialization */
+	/*--------------------------------------------------------------- */
 	WDCR_EBC(pb7ap, 0x200ffe80)	/* No Ready, many wait states (let reflections die out) */
 	WDCR_EBC(pb7cr, 0X4001A000)
 
 	bl	setup_continue
 
-	
+
 setup_h2evalboard:
-        /*--------------------------------------------------------------- */
-        /* Memory Bank 1 (Application Flash) initialization */
-        /*--------------------------------------------------------------- */
+	/*--------------------------------------------------------------- */
+	/* Memory Bank 1 (Application Flash) initialization */
+	/*--------------------------------------------------------------- */
 	WDCR_EBC(pb1ap, 0x7b015480)	/* T.B.M. */
 /*3010	WDCR_EBC(pb1ap, 0x7F8FFE80)	/###* T.B.M. */
-	WDCR_EBC(pb1cr, 0x20058000) 
+	WDCR_EBC(pb1cr, 0x20058000)
 
-        /*--------------------------------------------------------------- */
-        /* Memory Bank 2 (Application Flash) initialization */
-        /*--------------------------------------------------------------- */
+	/*--------------------------------------------------------------- */
+	/* Memory Bank 2 (Application Flash) initialization */
+	/*--------------------------------------------------------------- */
 	WDCR_EBC(pb2ap, 0x7b015480)	/* T.B.M. */
 /*3010	WDCR_EBC(pb2ap, 0x7F8FFE80)	/###* T.B.M. */
-	WDCR_EBC(pb2cr, 0x20458000) 
+	WDCR_EBC(pb2cr, 0x20458000)
 
 	/*--------------------------------------------------------------- */
-        /* Memory Bank 3 (Application Flash) initialization */
-        /*--------------------------------------------------------------- */
+	/* Memory Bank 3 (Application Flash) initialization */
+	/*--------------------------------------------------------------- */
 	WDCR_EBC(pb3ap, 0x7b015480)	/* T.B.M. */
 /*3010	WDCR_EBC(pb3ap, 0x7F8FFE80)	/###* T.B.M. */
-	WDCR_EBC(pb3cr, 0x20858000) 
+	WDCR_EBC(pb3cr, 0x20858000)
 
-        /*--------------------------------------------------------------- */
-        /* Memory Bank 4 (Application Flash) initialization */
-        /*--------------------------------------------------------------- */
+	/*--------------------------------------------------------------- */
+	/* Memory Bank 4 (Application Flash) initialization */
+	/*--------------------------------------------------------------- */
 	WDCR_EBC(pb4ap, 0x7b015480)	/* T.B.M. */
 /*3010	WDCR_EBC(pb4ap, 0x7F8FFE80)	/###* T.B.M. */
 	WDCR_EBC(pb4cr, 0x20C58000)
 
-        /*--------------------------------------------------------------- */
-        /* Memory Bank 7 (Heathrow chip) initialization */
-        /*--------------------------------------------------------------- */
+	/*--------------------------------------------------------------- */
+	/* Memory Bank 7 (Heathrow chip) initialization */
+	/*--------------------------------------------------------------- */
 	WDCR_EBC(pb7ap, 0x02000280)	/* No Ready, 4 wait states */
 	WDCR_EBC(pb7cr, 0X4001A000)
 
 setup_continue:
 
-	
-        mtlr    r31                     /* restore lr	 */
+
+	mtlr    r31                     /* restore lr	 */
 	nop				/* pass2 DCR errata #8 */
-        blr
+	blr
 
 /*--------------------------------------------------------------------- */
 /* Function:     sdram_init */
 /* Description:  Configures SDRAM memory banks. */
 /*--------------------------------------------------------------------- */
-        .globl  sdram_init
+	.globl  sdram_init
 
 sdram_init:
 #if CFG_MONITOR_BASE < CFG_FLASH_BASE
@@ -377,12 +377,12 @@ sdram_init:
 	subf	r5, r6, r17
 	or	r4, r4, r5
 
-        /*----------------------------------------------------------- */
-        /* Set SDTR1  */
-        /*----------------------------------------------------------- */
-        addi    r5,0,mem_sdtr1
-        mtdcr   memcfga,r5
-        mtdcr   memcfgd,r4
+	/*----------------------------------------------------------- */
+	/* Set SDTR1  */
+	/*----------------------------------------------------------- */
+	addi    r5,0,mem_sdtr1
+	mtdcr   memcfga,r5
+	mtdcr   memcfgd,r4
 
 	/*----------------------------------------------------------- */
 	/* */
@@ -444,36 +444,36 @@ b1skip:	addi    r7,0,mem_mb2cf
 	addi    r7,0,mem_mb3cf
 	mtdcr   memcfga,r7
 	mtdcr   memcfgd,r6
-b3skip:	
+b3skip:
 
-        /*----------------------------------------------------------- */
-        /* Set RTR */
-        /*----------------------------------------------------------- */
+	/*----------------------------------------------------------- */
+	/* Set RTR */
+	/*----------------------------------------------------------- */
 	cmpi	0, r30, 1600
 	bge	rtr_1
-        addis   r7, 0, 0x05F0	/* RTR value for 100Mhz */
+	addis   r7, 0, 0x05F0	/* RTR value for 100Mhz */
 	bl	rtr_2
 rtr_1:	addis	r7, 0, 0x03F8
 rtr_2:	addi    r4,0,mem_rtr
 	mtdcr   memcfga,r4
 	mtdcr   memcfgd,r7
 
-        /*----------------------------------------------------------- */
-        /* Delay to ensure 200usec have elapsed since reset. Assume worst */
-        /* case that the core is running 200Mhz: */
-        /*   200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles */
-        /*----------------------------------------------------------- */
-        addis   r3,0,0x0000
-        ori     r3,r3,0xA000          /* ensure 200usec have passed since reset */
-        mtctr   r3
+	/*----------------------------------------------------------- */
+	/* Delay to ensure 200usec have elapsed since reset. Assume worst */
+	/* case that the core is running 200Mhz: */
+	/*   200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles */
+	/*----------------------------------------------------------- */
+	addis   r3,0,0x0000
+	ori     r3,r3,0xA000          /* ensure 200usec have passed since reset */
+	mtctr   r3
 ..spinlp2:
-        bdnz    ..spinlp2               /* spin loop */
+	bdnz    ..spinlp2               /* spin loop */
 
-        /*----------------------------------------------------------- */
-        /* Set memory controller options reg, MCOPT1. */
+	/*----------------------------------------------------------- */
+	/* Set memory controller options reg, MCOPT1. */
 	/* Set DC_EN to '1' and BRD_PRF to '01' for 16 byte PLB Burst  */
 	/* read/prefetch. */
-        /*----------------------------------------------------------- */
+	/*----------------------------------------------------------- */
 	addi    r4,0,mem_mcopt1
 	mtdcr   memcfga,r4
 	addis   r4,0,0x80C0             /* set DC_EN=1 */
@@ -481,13 +481,13 @@ rtr_2:	addi    r4,0,mem_rtr
 	mtdcr   memcfgd,r4
 
 
-        /*----------------------------------------------------------- */
-        /* Delay to ensure 10msec have elapsed since reset. This is */
-        /* required for the MPC952 to stabalize. Assume worst */
-        /* case that the core is running 200Mhz: */
-        /*   200,000,000 (cycles/sec) X .010 (sec) = 0x1E8480 cycles */
-        /* This delay should occur before accessing SDRAM. */
-        /*----------------------------------------------------------- */
+	/*----------------------------------------------------------- */
+	/* Delay to ensure 10msec have elapsed since reset. This is */
+	/* required for the MPC952 to stabalize. Assume worst */
+	/* case that the core is running 200Mhz: */
+	/*   200,000,000 (cycles/sec) X .010 (sec) = 0x1E8480 cycles */
+	/* This delay should occur before accessing SDRAM. */
+	/*----------------------------------------------------------- */
 	addis   r3,0,0x001E
 	ori     r3,r3,0x8480          /* ensure 10msec have passed since reset */
 	mtctr   r3
@@ -501,8 +501,8 @@ rtr_2:	addi    r4,0,mem_rtr
 	stb	r4,0(r5)
 	eieio
 
-        mtlr    r31                     /* restore lr */
-        blr
+	mtlr    r31                     /* restore lr */
+	blr
 
 /*--------------------------------------------------------------------- */
 /* Function:    read_spd */
@@ -512,21 +512,21 @@ rtr_2:	addi    r4,0,mem_rtr
 
 #define WRITE_I2C(reg,val) \
 	addi    r3,0,val;\
-        addis   r4, 0, 0xef60;\
-        ori     r4, r4, 0x0500 + reg;\
-        stb     r3, 0(r4);\
-        eieio
+	addis   r4, 0, 0xef60;\
+	ori     r4, r4, 0x0500 + reg;\
+	stb     r3, 0(r4);\
+	eieio
 
 #define READ_I2C(reg) \
-        addis   r3, 0, 0xef60;\
-        ori     r3, r3, 0x0500 + reg;\
-        lbz     r3, 0x0000(r3);\
-        eieio
+	addis   r3, 0, 0xef60;\
+	ori     r3, r3, 0x0500 + reg;\
+	lbz     r3, 0x0000(r3);\
+	eieio
 
 read_spd:
 
 	mflr	r5
-	
+
 	/* Initialize i2c */
 	/*--------------- */
 	WRITE_I2C(IICLMADR, 0x00)	/* clear lo master address */
@@ -558,9 +558,9 @@ read_spd:
 
 	/* Wait a little */
 	/*-------------- */
-        addis   r3,0,0x0000
-        ori     r3,r3,0xA000
-        mtctr   r3
+	addis   r3,0,0x0000
+	ori     r3,r3,0xA000
+	mtctr   r3
 in02:	bdnz    in02
 
 	/* Issue write command */
@@ -572,12 +572,12 @@ in02:	bdnz    in02
 	/*--------------- */
 	addi	r7, 0, 0	/* byte counter in r7 */
 	addi	r8, 0, 0	/* checksum in r8 */
-rdlp:	
+rdlp:
 	/* issue read command */
 	/*------------------- */
 	cmpi	0, r7, 127
 	blt	rd01
-	WRITE_I2C(IICCNTL, IIC_CNTL_READ | IIC_CNTL_PT) 
+	WRITE_I2C(IICCNTL, IIC_CNTL_READ | IIC_CNTL_PT)
 	bl	rd02
 rd01:	WRITE_I2C(IICCNTL, IIC_CNTL_READ | IIC_CNTL_CHT | IIC_CNTL_PT)
 rd02:	bl	wait_i2c_transfer_done
@@ -585,46 +585,46 @@ rd02:	bl	wait_i2c_transfer_done
 	/* Fetch byte from buffer */
 	/*----------------------- */
 	READ_I2C(IICMDBUF)
-	
+
 	/* Retrieve parameters that are going to be used during configuration. */
 	/* Save them in dedicated registers. */
 	/*------------------------------------------------------------ */
 	cmpi	0, r7, 3	/* Save byte 3 in r10 */
 	bne	rd10
-	addi	r10, r3, 0	
+	addi	r10, r3, 0
 rd10:	cmpi	0, r7, 4	/* Save byte 4 in r11 */
 	bne	rd11
-	addi	r11, r3, 0	
+	addi	r11, r3, 0
 rd11:	cmpi	0, r7, 5	/* Save byte 5 in r12 */
 	bne	rd12
-	addi	r12, r3, 0	
+	addi	r12, r3, 0
 rd12:	cmpi	0, r7, 17	/* Save byte 17 in r13 */
 	bne	rd13
-	addi	r13, r3, 0	
+	addi	r13, r3, 0
 rd13:	cmpi	0, r7, 18	/* Save byte 18 in r14 */
 	bne	rd14
-	addi	r14, r3, 0	
+	addi	r14, r3, 0
 rd14:	cmpi	0, r7, 31	/* Save byte 31 in r15 */
 	bne	rd15
-	addi	r15, r3, 0	
+	addi	r15, r3, 0
 rd15:	cmpi	0, r7, 27	/* Save byte 27 in r16 */
 	bne	rd16
-	addi	r16, r3, 0	
+	addi	r16, r3, 0
 rd16:	cmpi	0, r7, 29	/* Save byte 29 in r17 */
 	bne	rd17
-	addi	r17, r3, 0	
+	addi	r17, r3, 0
 rd17:	cmpi	0, r7, 30	/* Save byte 30 in r18 */
 	bne	rd18
-	addi	r18, r3, 0	
+	addi	r18, r3, 0
 rd18:	cmpi	0, r7, 9	/* Save byte 9 in r19 */
 	bne	rd19
-	addi	r19, r3, 0	
+	addi	r19, r3, 0
 rd19:	cmpi	0, r7, 23	/* Save byte 23 in r20 */
 	bne	rd20
-	addi	r20, r3, 0	
+	addi	r20, r3, 0
 rd20:	cmpi	0, r7, 25	/* Save byte 25 in r21 */
 	bne	rd21
-	addi	r21, r3, 0	
+	addi	r21, r3, 0
 rd21:
 
 	/* Calculate checksum of the first 63 bytes */
@@ -647,16 +647,16 @@ rd30:	andi.	r8, r8, 0xff		/* use only 8 bits */
 	eieio
 rderr:	bl	rderr
 
-rd31:	
-	
+rd31:
+
 	/* Increment byte counter and check whether all bytes have been read. */
 	/*------------------------------------------------------------------- */
 	addi	r7, r7, 1
 	cmpi	0, r7, 127
 	bgt	rd05
 	bl	rdlp
-rd05:	
-        mtlr    r5                     /* restore lr */
+rd05:
+	mtlr    r5                     /* restore lr */
 	blr
 
 wait_i2c_transfer_done:
@@ -664,8 +664,8 @@ wait_i2c_transfer_done:
 wt01:	READ_I2C(IICSTS)
 	andi.	r4, r3, IIC_STS_PT
 	cmpi	0, r4, IIC_STS_PT
-	beq	wt01	
-        mtlr    r6                     /* restore lr */
+	beq	wt01
+	mtlr    r6                     /* restore lr */
 	blr
 
 /*--------------------------------------------------------------------- */
@@ -696,7 +696,7 @@ fm01:	cmpi	0, r10, 11
 	cmpi	0, r13, 2
 	bne	fm02
 	addi	r3, 0, 1
-	bl	fmfound	
+	bl	fmfound
 
 fm02:	cmpi	0, r10, 12
 	bne	fm03
@@ -815,7 +815,7 @@ fm14:	cmpi	0, r10, 13
 	addi	r3, 0, 7
 	bl	fmfound
 
-fm15:	
+fm15:
 	/* not found, error code to be issued on LEDs */
 	addi	r7, 0, LED_SDRAM_CODE_2
 	addis	r6, 0, 0x1000
@@ -827,7 +827,7 @@ fmerr:	bl	fmerr
 fmfound:addi	r6, 0, 1
 	subf	r3, r6, r3
 
-        mtlr    r5                     /* restore lr */
+	mtlr    r5                     /* restore lr */
 	blr
 
 /*--------------------------------------------------------------------- */
@@ -838,13 +838,13 @@ fmfound:addi	r6, 0, 1
 find_size_code:
 
 	mflr	r5
-	
+
 	addi	r3, r15, 0	/* density */
 	addi	r7, 0, 0
 fs01:	andi.	r6, r3, 0x01
 	cmpi	0, r6, 1
 	beq	fs04
-	
+
 	addi	r7, r7, 1
 	cmpi	0, r7, 7
 	bge	fs02
@@ -866,7 +866,7 @@ fs04:	addi	r3, r7, 0
 	addi	r6, 0, 1
 	subf	r3, r6, r3
 fs05:
-        mtlr    r5                     /* restore lr */
+	mtlr    r5                     /* restore lr */
 	blr
 
 /*--------------------------------------------------------------------- */
@@ -895,9 +895,9 @@ fc01:	srw	r6, r14, r4	/*  */
 	addi	r7, r19, 0	/* SDRAM cycle time for highest CAS latenty */
 
 	bl	fc03
-fc02:	
+fc02:
 	addi	r7, r20, 0	/* SDRAM cycle time for next-highest CAS latenty */
-fc03:	
+fc03:
 	addi	r8, r7, 0
 	addi	r9, 0, 4
 	srw	r7, r7, r9
@@ -910,7 +910,7 @@ fc03:
 	bgt	fc05
 	addi	r3, r2, 0
 	bl	fc05
-fc04:	
+fc04:
 	addi	r7, r21, 0	/* SDRAM cycle time for third-highest CAS latenty */
 	addi	r8, r7, 0
 	addi	r9, 0, 2
@@ -933,9 +933,9 @@ fc06:	addi	r6, 0, 1
 	cmpi	0, r4, 0
 	bne	fc01
 
-fc07:	
+fc07:
 
-        mtlr    r5		/* restore lr */
+	mtlr    r5		/* restore lr */
 	blr
 #endif
 
@@ -1000,7 +1000,7 @@ fc07:
 /* Size:	2 MB */
 /* Usage:	read/write */
 /* Width:	32 bit */
-	
+
 /* Walnut fpga pb7ap */
 /* 0      1      8         1         5         2         8            0 */
 /* 0 + 00000 + 011 + 000 + 00 + 01 + 01 + 01 + 001 + 0 + 1 + 0 + 0 + 00000 */
diff --git a/board/exbitgen/u-boot.lds b/board/exbitgen/u-boot.lds
index 36f9491..7dd5391 100644
--- a/board/exbitgen/u-boot.lds
+++ b/board/exbitgen/u-boot.lds
@@ -98,7 +98,7 @@ SECTIONS
   PROVIDE (erotext = .);
   .reloc   :
   {
-    *(.got) 
+    *(.got)
     _GOT2_TABLE_ = .;
     *(.got2)
     _FIXUP_TABLE_ = .;