patch-2.4.19 linux-2.4.19/arch/ppc/boot/mbx/embed_config.c

• Lines: 594
• Date: Wed Dec 31 16:00:00 1969
• Orig file: linux-2.4.18/arch/ppc/boot/mbx/embed_config.c
• Orig date: Thu May 24 15:02:06 2001

diff -urN linux-2.4.18/arch/ppc/boot/mbx/embed_config.c linux-2.4.19/arch/ppc/boot/mbx/embed_config.c
@@ -1,593 +0,0 @@
-/*
- * BK Id: SCCS/s.embed_config.c 1.7 05/18/01 07:54:04 patch
- */
-
-/* Board specific functions for those embedded 8xx boards that do
- * not have boot monitor support for board information.
- */
-#include <linux/types.h>
-#include <linux/config.h>
-#ifdef CONFIG_8xx
-#include <asm/mpc8xx.h>
-#endif
-#ifdef CONFIG_8260
-#include <asm/mpc8260.h>
-#include <asm/immap_8260.h>
-#endif
-
-
-/* IIC functions.
- * These are just the basic master read/write operations so we can
- * examine serial EEPROM.
- */
-extern void	iic_read(uint devaddr, u_char *buf, uint offset, uint count);
-static u_char	aschex_to_byte(u_char *cp);
-
-/* Supply a default Ethernet address for those eval boards that don't
- * ship with one.  This is an address from the MBX board I have, so
- * it is unlikely you will find it on your network.
- */
-static	ushort	def_enet_addr[] = { 0x0800, 0x3e26, 0x1559 };
-
-#if defined(CONFIG_MBX)
-
-/* The MBX hands us a pretty much ready to go board descriptor.  This
- * is where the idea started in the first place.
- */
-void
-embed_config(bd_t *bd)
-{
-	u_char	*mp;
-	u_char	eebuf[128];
-	int i;
-
-	/* Read the first 128 bytes of the EEPROM.  There is more,
-	 * but this is all we need.
-	 */
-	iic_read(0xa4, eebuf, 0, 128);
-
-	/* All we are looking for is the Ethernet MAC address.  The
-	 * first 8 bytes are 'MOTOROLA', so check for part of that.
-	 * If it's there, assume we have a valid MAC address.  If not,
-	 * grab our default one.
-	 */
-	if ((*(uint *)eebuf) == 0x4d4f544f)
-		mp = &eebuf[0x4c];
-	else
-		mp = (u_char *)def_enet_addr;
-
-	for (i=0; i<6; i++) {
-		bd->bi_enetaddr[i] = *mp++;
-	}
-
-	/* The boot rom passes these to us in MHz.  Linux now expects
-	 * them to be in Hz.
-	 */
-	bd->bi_intfreq *= 1000000;
-	bd->bi_busfreq *= 1000000;
-
-	/* Stuff a baud rate here as well.
-	*/
-	bd->bi_baudrate = 9600;
-}
-#endif /* CONFIG_MBX */
-
-#if defined(CONFIG_RPXLITE) || defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPX6)
-
-/* Helper functions for Embedded Planet boards.
-*/
-static void
-rpx_eth(bd_t *bd, u_char *cp)
-{
-	int	i;
-
-	for (i=0; i<6; i++) {
-		bd->bi_enetaddr[i] = aschex_to_byte(cp);
-		cp += 2;
-	}
-}
-
-static uint
-rpx_baseten(u_char *cp)
-{
-	uint	retval;
-
-	retval = 0;
-
-	while (*cp != '\n') {
-		retval *= 10;
-		retval += (*cp) - '0';
-		cp++;
-	}
-	return(retval);
-}
-
-static void
-rpx_brate(bd_t *bd, u_char *cp)
-{
-	uint	rate;
-
-	rate = 0;
-
-	while (*cp != '\n') {
-		rate *= 10;
-		rate += (*cp) - '0';
-		cp++;
-	}
-
-	bd->bi_baudrate = rate * 100;
-}
-
-static void
-rpx_memsize(bd_t *bd, u_char *cp)
-{
-	uint	size;
-
-	size = 0;
-
-	while (*cp != '\n') {
-		size *= 10;
-		size += (*cp) - '0';
-		cp++;
-	}
-
-	bd->bi_memsize = size * 1024 * 1024;
-}
-
-static void
-rpx_cpuspeed(bd_t *bd, u_char *cp)
-{
-	uint	num, den;
-
-	num = den = 0;
-
-	while (*cp != '\n') {
-		num *= 10;
-		num += (*cp) - '0';
-		cp++;
-		if (*cp == '/') {
-			cp++;
-			den = (*cp) - '0';
-			break;
-		}
-	}
-
-	/* I don't know why the RPX just can't state the actual
-	 * CPU speed.....
-	 */
-	if (den) {
-		num /= den;
-		num *= den;
-	}
-	bd->bi_intfreq = bd->bi_busfreq = num * 1000000;
-
-	/* The 8xx can only run a maximum 50 MHz bus speed (until
-	 * Motorola changes this :-).  Greater than 50 MHz parts
-	 * run internal/2 for bus speed.
-	 */
-	if (num > 50)
-		bd->bi_busfreq /= 2;
-}
-
-/* Because I didn't find anything that would do this.......
-*/
-u_char
-aschex_to_byte(u_char *cp)
-{
-	u_char	byte, c;
-
-	c = *cp++;
-
-	if ((c >= 'A') && (c <= 'F')) {
-		c -= 'A';
-		c += 10;
-	}
-	else if ((c >= 'a') && (c <= 'f')) {
-		c -= 'a';
-		c += 10;
-	}
-	else {
-		c -= '0';
-	}
-	
-	byte = c * 16;
-
-	c = *cp;
-
-	if ((c >= 'A') && (c <= 'F')) {
-		c -= 'A';
-		c += 10;
-	}
-	else if ((c >= 'a') && (c <= 'f')) {
-		c -= 'a';
-		c += 10;
-	}
-	else {
-		c -= '0';
-	}
-	
-	byte += c;
-
-	return(byte);
-}
-#endif
-
-#if defined(CONFIG_RPXLITE) || defined(CONFIG_RPXCLASSIC)
-
-/* Read the EEPROM on the RPX-Lite board.
-*/
-void
-embed_config(bd_t *bd)
-{
-	u_char	eebuf[256], *cp;
-
-	/* Read the first 256 bytes of the EEPROM.  I think this
-	 * is really all there is, and I hope if it gets bigger the
-	 * info we want is still up front.
-	 */
-#if 1
-	iic_read(0xa8, eebuf, 0, 128);
-	iic_read(0xa8, &eebuf[128], 128, 128);
-
-	/* We look for two things, the Ethernet address and the
-	 * serial baud rate.  The records are separated by
-	 * newlines.
-	 */
-	cp = eebuf;
-	for (;;) {
-		if (*cp == 'E') {
-			cp++;
-			if (*cp == 'A') {
-				cp += 2;
-				rpx_eth(bd, cp);
-			}
-		}
-		if (*cp == 'S') {
-			cp++;
-			if (*cp == 'B') {
-				cp += 2;
-				rpx_brate(bd, cp);
-			}
-		}
-		if (*cp == 'D') {
-			cp++;
-			if (*cp == '1') {
-				cp += 2;
-				rpx_memsize(bd, cp);
-			}
-		}
-		if (*cp == 'H') {
-			cp++;
-			if (*cp == 'Z') {
-				cp += 2;
-				rpx_cpuspeed(bd, cp);
-			}
-		}
-
-		/* Scan to the end of the record.
-		*/
-		while ((*cp != '\n') && (*cp != 0xff))
-			cp++;
-
-		/* If the next character is a 0 or ff, we are done.
-		*/
-		cp++;
-		if ((*cp == 0) || (*cp == 0xff))
-			break;
-	}
-	bd->bi_memstart = 0;
-#else
-	/* For boards without initialized EEPROM.
-	*/
-	bd->bi_memstart = 0;
-	bd->bi_memsize = (8 * 1024 * 1024);
-	bd->bi_intfreq = 48000000;
-	bd->bi_busfreq = 48000000;
-	bd->bi_baudrate = 9600;
-#endif
-}
-#endif /* RPXLITE || RPXCLASSIC */
-
-#ifdef CONFIG_BSEIP
-/* Build a board information structure for the BSE ip-Engine.
- * There is more to come since we will add some environment
- * variables and a function to read them.
- */
-void
-embed_config(bd_t *bd)
-{
-	u_char	*cp;
-	int	i;
-
-	/* Baud rate and processor speed will eventually come
-	 * from the environment variables.
-	 */
-	bd->bi_baudrate = 9600;
-
-	/* Get the Ethernet station address from the Flash ROM.
-	*/
-	cp = (u_char *)0xfe003ffa;
-	for (i=0; i<6; i++) {
-		bd->bi_enetaddr[i] = *cp++;
-	}
-
-	/* The rest of this should come from the environment as well.
-	*/
-	bd->bi_memstart = 0;
-	bd->bi_memsize = (16 * 1024 * 1024);
-	bd->bi_intfreq = 48000000;
-	bd->bi_busfreq = 48000000;
-}
-#endif /* BSEIP */
-
-#ifdef CONFIG_FADS
-/* Build a board information structure for the FADS.
- */
-void
-embed_config(bd_t *bd)
-{
-	u_char	*cp;
-	int	i;
-
-	/* Just fill in some known values.
-	 */
-	bd->bi_baudrate = 9600;
-
-	/* Use default enet.
-	*/
-	cp = (u_char *)def_enet_addr;
-	for (i=0; i<6; i++) {
-		bd->bi_enetaddr[i] = *cp++;
-	}
-
-	bd->bi_memstart = 0;
-	bd->bi_memsize = (8 * 1024 * 1024);
-	bd->bi_intfreq = 40000000;
-	bd->bi_busfreq = 40000000;
-}
-#endif /* FADS */
-
-#ifdef CONFIG_8260
-/* Compute 8260 clock values if the rom doesn't provide them.
- * We can't compute the internal core frequency (I don't know how to
- * do that).
- */
-static void
-clk_8260(bd_t *bd)
-{
-	uint	scmr, vco_out, clkin;
-	uint	plldf, pllmf, busdf, brgdf, cpmdf;
-	volatile immap_t	*ip;
-
-	ip = (immap_t *)IMAP_ADDR;
-	scmr = ip->im_clkrst.car_scmr;
-
-	/* The clkin is always bus frequency.
-	*/
-	clkin = bd->bi_busfreq;
-
-	/* Collect the bits from the scmr.
-	*/
-	plldf = (scmr >> 12) & 1;
-	pllmf = scmr & 0xfff;
-	cpmdf = (scmr >> 16) & 0x0f;
-	busdf = (scmr >> 20) & 0x0f;
-
-	/* This is arithmetic from the 8260 manual.
-	*/
-	vco_out = clkin / (plldf + 1);
-	vco_out *= 2 * (pllmf + 1);
-	bd->bi_vco = vco_out;		/* Save for later */
-
-	bd->bi_cpmfreq = vco_out / 2;	/* CPM Freq, in MHz */
-
-	/* Set Baud rate divisor.  The power up default is divide by 16,
-	 * but we set it again here in case it was changed.
-	 */
-	ip->im_clkrst.car_sccr = 1;	/* DIV 16 BRG */
-	bd->bi_brgfreq = vco_out / 16;
-}
-#endif
-
-#ifdef CONFIG_EST8260
-void
-embed_config(bd_t **bdp)
-{
-	u_char	*cp;
-	int	i;
-	bd_t	*bd;
-
-	bd = *bdp;
-#if 0
-	/* This is actually provided by my boot rom.  I have it
-	 * here for those people that may load the kernel with
-	 * a JTAG/COP tool and not the rom monitor.
-	 */
-	bd->bi_baudrate = 115200;
-	bd->bi_intfreq = 200000000;
-	bd->bi_busfreq = 66666666;
-	bd->bi_cpmfreq = 66666666;
-	bd->bi_brgfreq = 33333333;
-	bd->bi_memsize = 16 * 1024 * 1024;
-#else
-	/* The boot rom passes these to us in MHz.  Linux now expects
-	 * them to be in Hz.
-	 */
-	bd->bi_intfreq *= 1000000;
-	bd->bi_busfreq *= 1000000;
-	bd->bi_cpmfreq *= 1000000;
-	bd->bi_brgfreq *= 1000000;
-#endif
-
-	cp = (u_char *)def_enet_addr;
-	for (i=0; i<6; i++) {
-		bd->bi_enetaddr[i] = *cp++;
-	}
-}
-#endif /* EST8260 */
-
-#ifdef CONFIG_SBS8260
-/* We have to fill in everything.
-*/
-static	bd_t	bdinfo;
-
-void
-embed_config(bd_t **bdp)
-{
-	u_char	*cp;
-	int	i;
-	bd_t	*bd;
-
-	/* This should provided by the boot rom.
-	 */
-	bd = &bdinfo;
-	*bdp = bd;
-	bd->bi_baudrate = 9600;
-	bd->bi_memsize = 64 * 1024 * 1024;
-
-	/* Set all of the clocks.  We have to know the speed of the
-	 * external clock.  The development board had 66 MHz.
-	 */
-	bd->bi_busfreq = 66666666;
-	clk_8260(bd);
-
-	/* I don't know how to compute this yet.
-	*/
-	bd->bi_intfreq = 133000000;
-
-
-	cp = (u_char *)def_enet_addr;
-	for (i=0; i<6; i++) {
-		bd->bi_enetaddr[i] = *cp++;
-	}
-}
-#endif /* SBS8260 */
-
-#ifdef CONFIG_RPX6
-/* The pointer we are given is for the string of key values.
- */
-static	bd_t	bdinfo;
-
-void
-embed_config(bd_t **bdp)
-{
-	u_char	*cp, *keyvals;
-	int	i;
-	bd_t	*bd;
-
-	keyvals = (u_char *)*bdp;
-
-	bd = &bdinfo;
-	*bdp = bd;
-
-	/* This is almost identical to the RPX-Lite/Classic functions
-	 * on the 8xx boards.  It would be nice to have a key lookup
-	 * function in a string, but the format of all of the fields
-	 * is slightly different.
-	 */
-	cp = keyvals;
-	for (;;) {
-		if (*cp == 'E') {
-			cp++;
-			if (*cp == 'A') {
-				cp += 2;
-				rpx_eth(bd, cp);
-			}
-		}
-		if (*cp == 'S') {
-			cp++;
-			if (*cp == 'B') {
-				cp += 2;
-				bd->bi_baudrate = rpx_baseten(cp);
-			}
-		}
-		if (*cp == 'D') {
-			cp++;
-			if (*cp == '1') {
-				cp += 2;
-				bd->bi_memsize = rpx_baseten(cp) * 1024 * 1024;
-			}
-		}
-		if (*cp == 'X') {
-			cp++;
-			if (*cp == 'T') {
-				cp += 2;
-				bd->bi_busfreq = rpx_baseten(cp);
-			}
-		}
-		if (*cp == 'N') {
-			cp++;
-			if (*cp == 'V') {
-				cp += 2;
-				bd->bi_nvsize = rpx_baseten(cp) * 1024 * 1024;
-			}
-		}
-
-		/* Scan to the end of the record.
-		*/
-		while ((*cp != '\n') && (*cp != 0xff))
-			cp++;
-
-		/* If the next character is a 0 or ff, we are done.
-		*/
-		cp++;
-		if ((*cp == 0) || (*cp == 0xff))
-			break;
-	}
-	bd->bi_memstart = 0;
-
-	/* The memory size includes both the 60x and local bus DRAM.
-	 * I don't want to use the local bus DRAM for real memory,
-	 * so subtract it out.  It would be nice if they were separate
-	 * keys.
-	 */
-	bd->bi_memsize -= 32 * 1024 * 1024;
-
-	/* Set all of the clocks.  We have to know the speed of the
-	 * external clock.
-	 */
-	clk_8260(bd);
-
-	/* I don't know how to compute this yet.
-	*/
-	bd->bi_intfreq = 200000000;
-}
-#endif /* RPX6 for testing */
-
-#ifdef CONFIG_ADS8260
-/* We have to fill in everything.
-*/
-static	bd_t	bdinfo;
-
-void
-embed_config(bd_t **bdp)
-{
-	u_char	*cp;
-	int	i;
-	bd_t	*bd;
-
-	/* This should provided by the boot rom.
-	 */
-	bd = &bdinfo;
-	*bdp = bd;
-	bd->bi_baudrate = 9600;
-	bd->bi_memsize = 16 * 1024 * 1024;
-
-	/* Set all of the clocks.  We have to know the speed of the
-	 * external clock.  The development board had 66 MHz.
-	 */
-	bd->bi_busfreq = 66666666;
-	clk_8260(bd);
-
-	/* I don't know how to compute this yet.
-	*/
-	bd->bi_intfreq = 200000000;
-
-
-	cp = (u_char *)def_enet_addr;
-	for (i=0; i<6; i++) {
-		bd->bi_enetaddr[i] = *cp++;
-	}
-}
-#endif /* ADS8260 */
-