Add a common get_ram_size() function and modify the the

board-specific files to invoke that common implementation.

1 files changed, 85 insertions, 115 deletions

diff --git a/board/spd8xx/spd8xx.c b/board/spd8xx/spd8xx.c
index 239cf2639..9f52e339b 100644
--- a/board/spd8xx/spd8xx.c
+++ b/board/spd8xx/spd8xx.c
@@ -34,14 +34,13 @@ static long int dram_size (long int, long int *, long int);
 
 #define	_NOT_USED_	0xFFFFFFFF
 
-const uint sharc_table[] =
-{
+const uint sharc_table[] = {
 	/*
 	 * Single Read. (Offset 0 in UPM RAM)
 	 */
 	0x0FF3FC04, 0x0FF3EC00, 0x7FFFEC04, 0xFFFFEC04,
-	0xFFFFEC05, /* last */
-		    _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	0xFFFFEC05,		/* last */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_,
 	/*
 	 * Burst Read. (Offset 8 in UPM RAM)
 	 */
@@ -54,8 +53,8 @@ const uint sharc_table[] =
 	 * Single Write. (Offset 18 in UPM RAM)
 	 */
 	0x0FAFFC04, 0x0FAFEC00, 0x7FFFEC04, 0xFFFFEC04,
-	0xFFFFEC05, /* last */
-		    _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	0xFFFFEC05,		/* last */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_,
 	/*
 	 * Burst Write. (Offset 20 in UPM RAM)
 	 */
@@ -74,18 +73,17 @@ const uint sharc_table[] =
 	/*
 	 * Exception. (Offset 3c in UPM RAM)
 	 */
-	0x7FFFFC07, /* last */
-		    _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	0x7FFFFC07,		/* last */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_,
 };
 
 
-const uint sdram_table[] =
-{
+const uint sdram_table[] = {
 	/*
 	 * Single Read. (Offset 0 in UPM RAM)
 	 */
 	0x1F07FC04, 0xEEAEFC04, 0x11ADFC04, 0xEFBBBC00,
-	0x1FF77C47, /* last */
+	0x1FF77C47,		/* last */
 	/*
 	 * SDRAM Initialization (offset 5 in UPM RAM)
 	 *
@@ -94,39 +92,39 @@ const uint sdram_table[] =
 	 * sequence, which is executed by a RUN command.
 	 *
 	 */
-		    0x1FF77C35, 0xEFEABC34, 0x1FB57C35, /* last */
+	0x1FF77C35, 0xEFEABC34, 0x1FB57C35,	/* last */
 	/*
 	 * Burst Read. (Offset 8 in UPM RAM)
 	 */
 	0x1F07FC04, 0xEEAEFC04, 0x10ADFC04, 0xF0AFFC00,
-	0xF0AFFC00, 0xF1AFFC00, 0xEFBBBC00, 0x1FF77C47, /* last */
+	0xF0AFFC00, 0xF1AFFC00, 0xEFBBBC00, 0x1FF77C47,	/* last */
 	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
 	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
 	/*
 	 * Single Write. (Offset 18 in UPM RAM)
 	 */
-	0x1F27FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47, /* last */
+	0x1F27FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47,	/* last */
 	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
 	/*
 	 * Burst Write. (Offset 20 in UPM RAM)
 	 */
 	0x1F07FC04, 0xEEAEBC00, 0x10AD7C00, 0xF0AFFC00,
-	0xF0AFFC00, 0xE1BBBC04, 0x1FF77C47, /* last */
-					    _NOT_USED_,
+	0xF0AFFC00, 0xE1BBBC04, 0x1FF77C47,	/* last */
+	_NOT_USED_,
 	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
 	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
 	/*
 	 * Refresh  (Offset 30 in UPM RAM)
 	 */
 	0x1FF5FC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
-	0xFFFFFC84, 0xFFFFFC07, /* last */
-				_NOT_USED_, _NOT_USED_,
+	0xFFFFFC84, 0xFFFFFC07,	/* last */
+	_NOT_USED_, _NOT_USED_,
 	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
 	/*
 	 * Exception. (Offset 3c in UPM RAM)
 	 */
-	0x7FFFFC07, /* last */
-		    _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	0x7FFFFC07,		/* last */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_,
 };
 
 /* ------------------------------------------------------------------------- */
@@ -145,71 +143,74 @@ int checkboard (void)
 
 /* ------------------------------------------------------------------------- */
 
-long int
-initdram (int board_type)
+long int initdram (int board_type)
 {
-    volatile immap_t     *immap  = (immap_t *)CFG_IMMR;
-    volatile memctl8xx_t *memctl = &immap->im_memctl;
-    long int size_b0;
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+	long int size_b0;
 
 #if 0
-    /*
-     * Map controller bank 2 to the SRAM bank at preliminary address.
-     */
-    memctl->memc_or2 = CFG_OR2;
-    memctl->memc_br2 = CFG_BR2;
+	/*
+	 * Map controller bank 2 to the SRAM bank at preliminary address.
+	 */
+	memctl->memc_or2 = CFG_OR2;
+	memctl->memc_br2 = CFG_BR2;
 #endif
 
-    /*
-     * Map controller bank 4 to the PER8 bank.
-     */
-    memctl->memc_or4 = CFG_OR4;
-    memctl->memc_br4 = CFG_BR4;
+	/*
+	 * Map controller bank 4 to the PER8 bank.
+	 */
+	memctl->memc_or4 = CFG_OR4;
+	memctl->memc_br4 = CFG_BR4;
 
 #if 0
-    /* Configure SHARC at UMA */
-    upmconfig(UPMA, (uint *)sharc_table, sizeof(sharc_table)/sizeof(uint));
-    /* Map controller bank 5 to the SHARC */
-    memctl->memc_or5 = CFG_OR5;
-    memctl->memc_br5 = CFG_BR5;
+	/* Configure SHARC at UMA */
+	upmconfig (UPMA, (uint *) sharc_table,
+		   sizeof (sharc_table) / sizeof (uint));
+	/* Map controller bank 5 to the SHARC */
+	memctl->memc_or5 = CFG_OR5;
+	memctl->memc_br5 = CFG_BR5;
 #endif
 
-    memctl->memc_mamr = 0x00001000;
+	memctl->memc_mamr = 0x00001000;
 
-    /* Configure SDRAM at UMB */
-    upmconfig(UPMB, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+	/* Configure SDRAM at UMB */
+	upmconfig (UPMB, (uint *) sdram_table,
+		   sizeof (sdram_table) / sizeof (uint));
 
-    memctl->memc_mptpr = CFG_MPTPR_1BK_8K;
+	memctl->memc_mptpr = CFG_MPTPR_1BK_8K;
 
-    memctl->memc_mar = 0x00000088;
+	memctl->memc_mar = 0x00000088;
 
-    /*
-     * Map controller bank 3 to the SDRAM bank at preliminary address.
-     */
-    memctl->memc_or3 = CFG_OR3_PRELIM;
-    memctl->memc_br3 = CFG_BR3_PRELIM;
+	/*
+	 * Map controller bank 3 to the SDRAM bank at preliminary address.
+	 */
+	memctl->memc_or3 = CFG_OR3_PRELIM;
+	memctl->memc_br3 = CFG_BR3_PRELIM;
 
-    memctl->memc_mbmr = CFG_MBMR_8COL;	/* refresh not enabled yet */
+	memctl->memc_mbmr = CFG_MBMR_8COL;	/* refresh not enabled yet */
 
-    udelay(200);
-    memctl->memc_mcr = 0x80806105;
-    udelay(1);
-    memctl->memc_mcr = 0x80806130;
-    udelay(1);
-    memctl->memc_mcr = 0x80806130;
-    udelay(1);
-    memctl->memc_mcr = 0x80806106;
+	udelay (200);
+	memctl->memc_mcr = 0x80806105;
+	udelay (1);
+	memctl->memc_mcr = 0x80806130;
+	udelay (1);
+	memctl->memc_mcr = 0x80806130;
+	udelay (1);
+	memctl->memc_mcr = 0x80806106;
 
-    memctl->memc_mbmr |= MBMR_PTBE;	/* refresh enabled */
+	memctl->memc_mbmr |= MBMR_PTBE;	/* refresh enabled */
 
-    /*
-     * Check Bank 0 Memory Size for re-configuration
-     */
-    size_b0 = dram_size (CFG_MBMR_8COL, (ulong *)SDRAM_BASE3_PRELIM, SDRAM_MAX_SIZE);
+	/*
+	 * Check Bank 0 Memory Size for re-configuration
+	 */
+	size_b0 =
+		dram_size (CFG_MBMR_8COL, (ulong *) SDRAM_BASE3_PRELIM,
+			   SDRAM_MAX_SIZE);
 
-    memctl->memc_mbmr = CFG_MBMR_8COL | MBMR_PTBE;
+	memctl->memc_mbmr = CFG_MBMR_8COL | MBMR_PTBE;
 
-    return (size_b0);
+	return (size_b0);
 }
 
 /* ------------------------------------------------------------------------- */
@@ -222,60 +223,29 @@ initdram (int board_type)
  * - short between data lines
  */
 
-static long int dram_size (long int mamr_value, long int *base, long int maxsize)
+static long int dram_size (long int mamr_value, long int *base,
+			   long int maxsize)
 {
-    volatile immap_t     *immap  = (immap_t *)CFG_IMMR;
-    volatile memctl8xx_t *memctl = &immap->im_memctl;
-    volatile long int	 *addr;
-    ulong		  cnt, val;
-    ulong		  save[32];	/* to make test non-destructive */
-    unsigned char	  i = 0;
-
-    memctl->memc_mbmr = mamr_value;
-
-    for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) {
-	addr = base + cnt;	/* pointer arith! */
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
 
-	save[i++] = *addr;
-	*addr = ~cnt;
-    }
+	memctl->memc_mbmr = mamr_value;
 
-    /* write 0 to base address */
-    addr = base;
-    save[i] = *addr;
-    *addr = 0;
-
-    /* check at base address */
-    if ((val = *addr) != 0) {
-	*addr = save[i];
-	return (0);
-    }
-
-    for (cnt = 1; cnt <= maxsize/sizeof(long); cnt <<= 1) {
-	addr = base + cnt;	/* pointer arith! */
-
-	val = *addr;
-	*addr = save[--i];
-
-	if (val != (~cnt)) {
-	    return (cnt * sizeof(long));
-	}
-    }
-    return (maxsize);
+	return (get_ram_size (base, maxsize));
 }
 
 /* ------------------------------------------------------------------------- */
 
-void	reset_phy(void)
+void reset_phy (void)
 {
-	immap_t *immr = (immap_t *)CFG_IMMR;
+	immap_t *immr = (immap_t *) CFG_IMMR;
 	ushort sreg;
 
 	/* Configure extra port pins for NS DP83843 PHY */
 	immr->im_ioport.iop_papar &= ~(PA_ENET_MDC | PA_ENET_MDIO);
 
-	sreg  = immr->im_ioport.iop_padir;
-	sreg |=   PA_ENET_MDC;		/* Mgmt. Data Clock is Output */
+	sreg = immr->im_ioport.iop_padir;
+	sreg |= PA_ENET_MDC;	/* Mgmt. Data Clock is Output */
 	sreg &= ~(PA_ENET_MDIO);	/* Mgmt. Data I/O is bidirect. => Input */
 	immr->im_ioport.iop_padir = sreg;
 
@@ -288,23 +258,23 @@ void	reset_phy(void)
 	 * Configure RESET pins for NS DP83843 PHY, and RESET chip.
 	 *
 	 * Note: The RESET pin is high active, but there is an
-	 *	 inverter on the SPD823TS board...
+	 *       inverter on the SPD823TS board...
 	 */
 	immr->im_ioport.iop_pcpar &= ~(PC_ENET_RESET);
-	immr->im_ioport.iop_pcdir |=   PC_ENET_RESET;
+	immr->im_ioport.iop_pcdir |= PC_ENET_RESET;
 	/* assert RESET signal of PHY */
 	immr->im_ioport.iop_pcdat &= ~(PC_ENET_RESET);
 	udelay (10);
 	/* de-assert RESET signal of PHY */
-	immr->im_ioport.iop_pcdat |=   PC_ENET_RESET;
+	immr->im_ioport.iop_pcdat |= PC_ENET_RESET;
 	udelay (10);
 }
 
 /* ------------------------------------------------------------------------- */
 
-void ide_set_reset(int on)
+void ide_set_reset (int on)
 {
-	volatile immap_t *immr = (immap_t *)CFG_IMMR;
+	volatile immap_t *immr = (immap_t *) CFG_IMMR;
 
 	/*
 	 * Configure PC for IDE Reset Pin
@@ -312,13 +282,13 @@ void ide_set_reset(int on)
 	if (on) {		/* assert RESET */
 		immr->im_ioport.iop_pcdat &= ~(CFG_PC_IDE_RESET);
 	} else {		/* release RESET */
-		immr->im_ioport.iop_pcdat |=   CFG_PC_IDE_RESET;
+		immr->im_ioport.iop_pcdat |= CFG_PC_IDE_RESET;
 	}
 
 	/* program port pin as GPIO output */
 	immr->im_ioport.iop_pcpar &= ~(CFG_PC_IDE_RESET);
-	immr->im_ioport.iop_pcso  &= ~(CFG_PC_IDE_RESET);
-	immr->im_ioport.iop_pcdir |=   CFG_PC_IDE_RESET;
+	immr->im_ioport.iop_pcso &= ~(CFG_PC_IDE_RESET);
+	immr->im_ioport.iop_pcdir |= CFG_PC_IDE_RESET;
 }
 
 /* ------------------------------------------------------------------------- */