Initial import of modified u-boot tree

Original upstream URL:
git://git.denx.de/u-boot.git

Original upstream GIT hash:
62c175fbb8a0f9a926c88294ea9f7e88eb898f6c

5 files changed, 1154 insertions, 0 deletions

diff --git a/board/rbc823/Makefile b/board/rbc823/Makefile
new file mode 100644
index 0000000..72bbc2f
--- /dev/null
+++ b/board/rbc823/Makefile
@@ -0,0 +1,44 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.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 $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+COBJS	= $(BOARD).o flash.o kbd.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/rbc823/flash.c b/board/rbc823/flash.c
new file mode 100644
index 0000000..6be2bc9
--- /dev/null
+++ b/board/rbc823/flash.c
@@ -0,0 +1,461 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.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 <mpc8xx.h>
+
+flash_info_t	flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
+
+/*
+ * Functions
+ */
+static ulong flash_get_size(vu_long *addr, flash_info_t *info);
+static int write_word(flash_info_t *info, ulong dest, ulong data);
+static void flash_get_offsets(ulong base, flash_info_t *info);
+
+unsigned long flash_init(void)
+{
+	unsigned long size_b0;
+	int i;
+
+	/* Init: no FLASHes known */
+	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i)
+		flash_info[i].flash_id = FLASH_UNKNOWN;
+
+	/* Detect size */
+	size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE,
+			&flash_info[0]);
+
+	/* Setup offsets */
+	flash_get_offsets(CONFIG_SYS_FLASH_BASE, &flash_info[0]);
+
+#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
+	/* Monitor protection ON by default */
+	flash_protect(FLAG_PROTECT_SET,
+		      CONFIG_SYS_MONITOR_BASE,
+		      CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
+		      &flash_info[0]);
+#endif
+
+	flash_info[0].size = size_b0;
+
+	return size_b0;
+}
+
+/*-----------------------------------------------------------------------
+ * Fix this to support variable sector sizes
+*/
+static void flash_get_offsets(ulong base, flash_info_t *info)
+{
+	int i;
+
+	/* set up sector start address table */
+	if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) {
+		/* set sector offsets for bottom boot block type	*/
+		for (i = 0; i < info->sector_count; i++)
+			info->start[i] = base + (i * 0x00010000);
+	}
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info(flash_info_t *info)
+{
+	int i;
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		puts("missing or unknown FLASH type\n");
+		return;
+	}
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case FLASH_MAN_AMD:
+		printf("AMD ");
+		break;
+	case FLASH_MAN_FUJ:
+		printf("FUJITSU ");
+		break;
+	case FLASH_MAN_BM:
+		printf("BRIGHT MICRO ");
+		break;
+	default:
+		printf("Unknown Vendor ");
+		break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_AM040:
+		printf("29F040 or 29LV040 (4 Mbit, uniform sectors)\n");
+		break;
+	case FLASH_AM400B:
+		printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
+		break;
+	case FLASH_AM400T:
+		printf("AM29LV400T (4 Mbit, top boot sector)\n");
+		break;
+	case FLASH_AM800B:
+		printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
+		break;
+	case FLASH_AM800T:
+		printf("AM29LV800T (8 Mbit, top boot sector)\n");
+		break;
+	case FLASH_AM160B:
+		printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
+		break;
+	case FLASH_AM160T:
+		printf("AM29LV160T (16 Mbit, top boot sector)\n");
+		break;
+	case FLASH_AM320B:
+		printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
+		break;
+	case FLASH_AM320T:
+		printf("AM29LV320T (32 Mbit, top boot sector)\n");
+		break;
+	default:
+		printf("Unknown Chip Type\n");
+		break;
+	}
+
+	if (info->size >> 20) {
+		printf("  Size: %ld MB in %d Sectors\n",
+			info->size >> 20,
+			info->sector_count);
+	} else {
+		printf("  Size: %ld KB in %d Sectors\n",
+			info->size >> 10,
+			info->sector_count);
+	}
+
+	puts("  Sector Start Addresses:");
+
+	for (i = 0; i < info->sector_count; ++i) {
+		if ((i % 5) == 0)
+			puts("\n   ");
+
+		printf(" %08lX%s",
+			info->start[i],
+			info->protect[i] ? " (RO)" : "     ");
+	}
+
+	putc('\n');
+	return;
+}
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+
+static ulong flash_get_size(vu_long *addr, flash_info_t *info)
+{
+	short i;
+	volatile unsigned char *caddr;
+	char value;
+
+	caddr = (volatile unsigned char *)addr ;
+
+	/* Write auto select command: read Manufacturer ID */
+
+	debug("Base address is: %8p\n", caddr);
+
+	caddr[0x0555] = 0xAA;
+	caddr[0x02AA] = 0x55;
+	caddr[0x0555] = 0x90;
+
+	value = caddr[0];
+
+	debug("Manufact ID: %02x\n", value);
+
+	switch (value) {
+	case 0x01:	/*AMD_MANUFACT*/
+		info->flash_id = FLASH_MAN_AMD;
+		break;
+
+	case 0x04:	/*FUJ_MANUFACT*/
+		info->flash_id = FLASH_MAN_FUJ;
+		break;
+
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		break;
+	}
+
+	value = caddr[1];			/* device ID		*/
+
+	debug("Device ID: %02x\n", value);
+
+	switch (value) {
+	case AMD_ID_LV040B:
+		info->flash_id += FLASH_AM040;
+		info->sector_count = 8;
+		info->size = 0x00080000;
+		break;				/* => 512Kb		*/
+
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		return 0;			/* => no or unknown flash */
+	}
+
+	flash_get_offsets((ulong)addr, &flash_info[0]);
+
+	/* check for protected sectors */
+	for (i = 0; i < info->sector_count; i++) {
+		/*
+		 * read sector protection at sector address,
+		 * (A7 .. A0) = 0x02
+		 * D0 = 1 if protected
+		 */
+		caddr = (volatile unsigned char *)(info->start[i]);
+		info->protect[i] = caddr[2] & 1;
+	}
+
+	/*
+	 * Prevent writes to uninitialized FLASH.
+	 */
+	if (info->flash_id != FLASH_UNKNOWN) {
+		caddr = (volatile unsigned char *)info->start[0];
+		*caddr = 0xF0;	/* reset bank */
+	}
+
+	return info->size;
+}
+
+
+int	flash_erase(flash_info_t *info, int s_first, int s_last)
+{
+	volatile unsigned char *addr =
+		(volatile unsigned char *)(info->start[0]);
+	int flag, prot, sect, l_sect;
+	ulong start, now, last;
+
+	if ((s_first < 0) || (s_first > s_last)) {
+		if (info->flash_id == FLASH_UNKNOWN)
+			printf("- missing\n");
+		else
+			printf("- no sectors to erase\n");
+
+		return 1;
+	}
+
+	if ((info->flash_id == FLASH_UNKNOWN) ||
+	    (info->flash_id > FLASH_AMD_COMP)) {
+		printf("Can't erase unknown flash type - aborted\n");
+		return 1;
+	}
+
+	prot = 0;
+	for (sect = s_first; sect <= s_last; ++sect) {
+		if (info->protect[sect])
+			prot++;
+	}
+
+	if (prot) {
+		printf("- Warning: %d protected sectors will not be erased!\n",
+			prot);
+	} else {
+		printf("\n");
+	}
+
+	l_sect = -1;
+
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts();
+
+	addr[0x0555] = 0xAA;
+	addr[0x02AA] = 0x55;
+	addr[0x0555] = 0x80;
+	addr[0x0555] = 0xAA;
+	addr[0x02AA] = 0x55;
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect <= s_last; sect++) {
+		if (info->protect[sect] == 0) {	/* not protected */
+			addr = (volatile unsigned char *)(info->start[sect]);
+			addr[0] = 0x30;
+			l_sect = sect;
+		}
+	}
+
+	/* re-enable interrupts if necessary */
+	if (flag)
+		enable_interrupts();
+
+	/* wait at least 80us - let's wait 1 ms */
+	udelay(1000);
+
+	/*
+	 * We wait for the last triggered sector
+	 */
+	if (l_sect < 0)
+		goto DONE;
+
+	start = get_timer(0);
+	last  = start;
+	addr = (volatile unsigned char *)(info->start[l_sect]);
+
+	while ((addr[0] & 0xFF) != 0xFF) {
+		now = get_timer(start);
+		if (now > CONFIG_SYS_FLASH_ERASE_TOUT) {
+			printf("Timeout\n");
+			return 1;
+		}
+		/* show that we're waiting */
+		if ((now - last) > 1000) {	/* every second */
+			putc('.');
+			last = now;
+		}
+	}
+
+DONE:
+	/* reset to read mode */
+	addr = (volatile unsigned char *)info->start[0];
+
+	addr[0] = 0xF0;	/* reset bank */
+
+	printf(" done\n");
+	return 0;
+}
+
+/*
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+
+int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+	ulong cp, wp, data;
+	int i, l, rc;
+
+	wp = (addr & ~3);	/* get lower word aligned address */
+
+	/*
+	 * handle unaligned start bytes
+	 */
+	l = addr - wp;
+
+	if (l != 0) {
+		data = 0;
+		for (i = 0, cp = wp; i < l; ++i, ++cp)
+			data = (data << 8) | (*(uchar *)cp);
+
+		for (; i < 4 && cnt > 0; ++i) {
+			data = (data << 8) | *src++;
+			--cnt;
+			++cp;
+		}
+
+		for (; cnt == 0 && i < 4; ++i, ++cp)
+			data = (data << 8) | (*(uchar *)cp);
+
+		rc = write_word(info, wp, data);
+
+		if (rc != 0)
+			return rc;
+
+		wp += 4;
+	}
+
+	/*
+	 * handle word aligned part
+	 */
+	while (cnt >= 4) {
+		data = 0;
+		for (i = 0; i < 4; ++i)
+			data = (data << 8) | *src++;
+
+		rc = write_word(info, wp, data);
+
+		if (rc != 0)
+			return rc;
+
+		wp  += 4;
+		cnt -= 4;
+	}
+
+	if (cnt == 0)
+		return 0;
+
+	/*
+	 * handle unaligned tail bytes
+	 */
+	data = 0;
+	for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
+		data = (data << 8) | *src++;
+		--cnt;
+	}
+	for (; i < 4; ++i, ++cp)
+		data = (data << 8) | (*(uchar *)cp);
+
+	return write_word(info, wp, data);
+}
+
+/*
+ * Write a word to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word(flash_info_t *info, ulong dest, ulong data)
+{
+	volatile unsigned char *cdest, *cdata;
+	volatile unsigned char *addr =
+		(volatile unsigned char *)(info->start[0]);
+	ulong start;
+	int flag, count = 4 ;
+
+	cdest = (volatile unsigned char *)dest ;
+	cdata = (volatile unsigned char *)&data ;
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*((vu_long *)dest)&data) != data)
+		return 2;
+
+	while (count--) {
+		/* Disable interrupts which might cause a timeout here */
+		flag = disable_interrupts();
+
+		addr[0x0555] = 0xAA;
+		addr[0x02AA] = 0x55;
+		addr[0x0555] = 0xA0;
+
+		*cdest = *cdata;
+
+		/* re-enable interrupts if necessary */
+		if (flag)
+			enable_interrupts();
+
+		/* data polling for D7 */
+		start = get_timer(0);
+		while ((*cdest ^ *cdata) & 0x80) {
+			if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
+				return 1;
+		}
+
+		cdata++ ;
+		cdest++ ;
+	}
+	return 0;
+}
diff --git a/board/rbc823/kbd.c b/board/rbc823/kbd.c
new file mode 100644
index 0000000..853cbde
--- /dev/null
+++ b/board/rbc823/kbd.c
@@ -0,0 +1,269 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.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
+ */
+
+/* Modified by Udi Finkelstein
+ *
+ * This file includes communication routines for SMC1 that can run even if
+ * SMC2 have already been initialized.
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <commproc.h>
+#include <stdio_dev.h>
+#include <lcd.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define	SMC_INDEX	0
+#define PROFF_SMC	PROFF_SMC1
+#define CPM_CR_CH_SMC	CPM_CR_CH_SMC1
+
+#define RBC823_KBD_BAUDRATE	38400
+#define CPM_KEYBOARD_BASE	0x1000
+/*
+ * Minimal serial functions needed to use one of the SMC ports
+ * as serial console interface.
+ */
+
+void smc1_setbrg (void)
+{
+	volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+	volatile cpm8xx_t *cp = &(im->im_cpm);
+
+	/* Set up the baud rate generator.
+	 * See 8xx_io/commproc.c for details.
+	 *
+	 * Wire BRG2 to SMC1, BRG1 to SMC2
+	 */
+
+	cp->cp_simode = 0x00001000;
+
+	cp->cp_brgc2 =
+		(((gd->cpu_clk / 16 / RBC823_KBD_BAUDRATE)-1) << 1) | CPM_BRG_EN;
+}
+
+int smc1_init (void)
+{
+	volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+	volatile smc_t *sp;
+	volatile smc_uart_t *up;
+	volatile cbd_t *tbdf, *rbdf;
+	volatile cpm8xx_t *cp = &(im->im_cpm);
+	uint	dpaddr;
+
+	/* initialize pointers to SMC */
+
+	sp = (smc_t *) &(cp->cp_smc[SMC_INDEX]);
+	up = (smc_uart_t *) &cp->cp_dparam[PROFF_SMC];
+
+	/* Disable transmitter/receiver.
+	*/
+	sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
+
+	/* Enable SDMA.
+	*/
+	im->im_siu_conf.sc_sdcr = 1;
+
+	/* clear error conditions */
+#ifdef	CONFIG_SYS_SDSR
+	im->im_sdma.sdma_sdsr = CONFIG_SYS_SDSR;
+#else
+	im->im_sdma.sdma_sdsr = 0x83;
+#endif
+
+	/* clear SDMA interrupt mask */
+#ifdef	CONFIG_SYS_SDMR
+	im->im_sdma.sdma_sdmr = CONFIG_SYS_SDMR;
+#else
+	im->im_sdma.sdma_sdmr = 0x00;
+#endif
+
+	/* Use Port B for SMC1 instead of other functions.
+	*/
+	cp->cp_pbpar |=  0x000000c0;
+	cp->cp_pbdir &= ~0x000000c0;
+	cp->cp_pbodr &= ~0x000000c0;
+
+	/* Set the physical address of the host memory buffers in
+	 * the buffer descriptors.
+	 */
+
+#ifdef CONFIG_SYS_ALLOC_DPRAM
+	dpaddr = dpram_alloc_align (sizeof(cbd_t)*2 + 2, 8) ;
+#else
+	dpaddr = CPM_KEYBOARD_BASE ;
+#endif
+
+	/* Allocate space for two buffer descriptors in the DP ram.
+	 * For now, this address seems OK, but it may have to
+	 * change with newer versions of the firmware.
+	 * damm: allocating space after the two buffers for rx/tx data
+	 */
+
+	rbdf = (cbd_t *)&cp->cp_dpmem[dpaddr];
+	rbdf->cbd_bufaddr = (uint) (rbdf+2);
+	rbdf->cbd_sc = 0;
+	tbdf = rbdf + 1;
+	tbdf->cbd_bufaddr = ((uint) (rbdf+2)) + 1;
+	tbdf->cbd_sc = 0;
+
+	/* Set up the uart parameters in the parameter ram.
+	*/
+	up->smc_rbase = dpaddr;
+	up->smc_tbase = dpaddr+sizeof(cbd_t);
+	up->smc_rfcr = SMC_EB;
+	up->smc_tfcr = SMC_EB;
+
+	/* Set UART mode, 8 bit, no parity, one stop.
+	 * Enable receive and transmit.
+	 */
+	sp->smc_smcmr = smcr_mk_clen(9) |  SMCMR_SM_UART;
+
+	/* Mask all interrupts and remove anything pending.
+	*/
+	sp->smc_smcm = 0;
+	sp->smc_smce = 0xff;
+
+	/* Set up the baud rate generator.
+	*/
+	smc1_setbrg ();
+
+	/* Make the first buffer the only buffer.
+	*/
+	tbdf->cbd_sc |= BD_SC_WRAP;
+	rbdf->cbd_sc |= BD_SC_EMPTY | BD_SC_WRAP;
+
+	/* Single character receive.
+	*/
+	up->smc_mrblr = 1;
+	up->smc_maxidl = 0;
+
+	/* Initialize Tx/Rx parameters.
+	*/
+
+	while (cp->cp_cpcr & CPM_CR_FLG)  /* wait if cp is busy */
+	  ;
+
+	cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC, CPM_CR_INIT_TRX) | CPM_CR_FLG;
+
+	while (cp->cp_cpcr & CPM_CR_FLG)  /* wait if cp is busy */
+	  ;
+
+	/* Enable transmitter/receiver.
+	*/
+	sp->smc_smcmr |= SMCMR_REN | SMCMR_TEN;
+
+	return (0);
+}
+
+void smc1_putc(const char c)
+{
+	volatile cbd_t		*tbdf;
+	volatile char		*buf;
+	volatile smc_uart_t	*up;
+	volatile immap_t	*im = (immap_t *)CONFIG_SYS_IMMR;
+	volatile cpm8xx_t	*cpmp = &(im->im_cpm);
+
+	up = (smc_uart_t *)&cpmp->cp_dparam[PROFF_SMC];
+
+	tbdf = (cbd_t *)&cpmp->cp_dpmem[up->smc_tbase];
+
+	/* Wait for last character to go.
+	*/
+
+	buf = (char *)tbdf->cbd_bufaddr;
+
+	*buf = c;
+	tbdf->cbd_datlen = 1;
+	tbdf->cbd_sc |= BD_SC_READY;
+	__asm__("eieio");
+
+	while (tbdf->cbd_sc & BD_SC_READY) {
+		WATCHDOG_RESET ();
+		__asm__("eieio");
+	}
+}
+
+int smc1_getc(void)
+{
+	volatile cbd_t		*rbdf;
+	volatile unsigned char	*buf;
+	volatile smc_uart_t	*up;
+	volatile immap_t	*im = (immap_t *)CONFIG_SYS_IMMR;
+	volatile cpm8xx_t	*cpmp = &(im->im_cpm);
+	unsigned char		c;
+
+	up = (smc_uart_t *)&cpmp->cp_dparam[PROFF_SMC];
+
+	rbdf = (cbd_t *)&cpmp->cp_dpmem[up->smc_rbase];
+
+	/* Wait for character to show up.
+	*/
+	buf = (unsigned char *)rbdf->cbd_bufaddr;
+
+	while (rbdf->cbd_sc & BD_SC_EMPTY)
+		WATCHDOG_RESET ();
+
+	c = *buf;
+	rbdf->cbd_sc |= BD_SC_EMPTY;
+
+	return(c);
+}
+
+int smc1_tstc(void)
+{
+	volatile cbd_t		*rbdf;
+	volatile smc_uart_t	*up;
+	volatile immap_t	*im = (immap_t *)CONFIG_SYS_IMMR;
+	volatile cpm8xx_t	*cpmp = &(im->im_cpm);
+
+	up = (smc_uart_t *)&cpmp->cp_dparam[PROFF_SMC];
+
+	rbdf = (cbd_t *)&cpmp->cp_dpmem[up->smc_rbase];
+
+	return(!(rbdf->cbd_sc & BD_SC_EMPTY));
+}
+
+/* search for keyboard and register it if found */
+int drv_keyboard_init(void)
+{
+	int error = 0;
+	struct stdio_dev kbd_dev;
+
+	if (0) {
+		/* register the keyboard */
+		memset (&kbd_dev, 0, sizeof(struct stdio_dev));
+		strcpy(kbd_dev.name, "kbd");
+		kbd_dev.flags =  DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
+		kbd_dev.putc = NULL;
+		kbd_dev.puts = NULL;
+		kbd_dev.getc = smc1_getc;
+		kbd_dev.tstc = smc1_tstc;
+		error = stdio_register (&kbd_dev);
+	} else {
+		lcd_is_enabled = 0;
+		lcd_disable();
+	}
+	return error;
+}
diff --git a/board/rbc823/rbc823.c b/board/rbc823/rbc823.c
new file mode 100644
index 0000000..ddfba14
--- /dev/null
+++ b/board/rbc823/rbc823.c
@@ -0,0 +1,272 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.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 "mpc8xx.h"
+#include <linux/mtd/doc2000.h>
+
+extern int kbd_init(void);
+extern int drv_kbd_init(void);
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+
+/* ------------------------------------------------------------------------- */
+
+#define	_NOT_USED_	0xFFFFFFFF
+
+const uint sdram_table[] =
+{
+	/*
+	 * Single Read. (Offset 0 in UPMA RAM)
+	 */
+	0x1F07FC04, 0xEEAEFC04, 0x11ADFC04, 0xEFBBBC00,
+	0x1FF77C47, /* last */
+	/*
+	 * SDRAM Initialization (offset 5 in UPMA RAM)
+	 *
+	 * This is no UPM entry point. The following definition uses
+	 * the remaining space to establish an initialization
+	 * sequence, which is executed by a RUN command.
+	 *
+	 */
+		    0x1FF77C34, 0xEFEABC34, 0x1FB57C35, /* last */
+	/*
+	 * Burst Read. (Offset 8 in UPMA RAM)
+	 */
+	0x1F07FC04, 0xEEAEFC04, 0x10ADFC04, 0xF0AFFC00,
+	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 UPMA RAM)
+	 */
+	0x1F27FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47, /* last */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	/*
+	 * Burst Write. (Offset 20 in UPMA RAM)
+	 */
+	0x1F07FC04, 0xEEAEBC00, 0x10AD7C00, 0xF0AFFC00,
+	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 UPMA RAM)
+	 */
+	0x1FF5FC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
+	0xFFFFFC84, 0xFFFFFC07, /* last */
+				_NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	/*
+	 * Exception. (Offset 3c in UPMA RAM)
+	 */
+	0x1FF7FC07, /* last */
+		    _NOT_USED_, _NOT_USED_, _NOT_USED_,
+};
+
+const uint static_table[] =
+{
+	/*
+	 * Single Read. (Offset 0 in UPMA RAM)
+	 */
+	0x0FFFFC04, 0x0FF3FC04, 0x0FF3CC04, 0x0FF3CC04,
+	0x0FF3EC04, 0x0FF3CC00, 0x0FF7FC04, 0x3FFFFC04,
+	0xFFFFFC04, 0xFFFFFC05, /* last */
+	                        _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	/*
+	 * Single Write. (Offset 18 in UPMA RAM)
+	 */
+	0x0FFFFC04, 0x00FFFC04, 0x00FFFC04, 0x00FFFC04,
+	0x01FFFC00, 0x3FFFFC04, 0xFFFFFC04, 0xFFFFFC05, /* last */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+};
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check Board Identity:
+ *
+ * Test TQ ID string (TQM8xx...)
+ * If present, check for "L" type (no second DRAM bank),
+ * otherwise "L" type is assumed as default.
+ *
+ * Return 1 for "L" type, 0 else.
+ */
+
+int checkboard (void)
+{
+	char buf[64];
+	int i = getenv_f("serial#", buf, sizeof(buf));
+
+	if (i < 0 || strncmp(buf, "TQM8", 4)) {
+		printf ("### No HW ID - assuming RBC823\n");
+		return (0);
+	}
+
+	puts(buf);
+	putc('\n');
+
+	return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+phys_size_t initdram (int board_type)
+{
+	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+	long int size_b0, size8, size9;
+
+	upmconfig (UPMA, (uint *) sdram_table,
+		   sizeof (sdram_table) / sizeof (uint));
+
+	/*
+	 * 1 Bank of 64Mbit x 2 devices
+	 */
+	memctl->memc_mptpr = CONFIG_SYS_MPTPR_1BK_4K;
+	memctl->memc_mar = 0x00000088;
+
+	/*
+	 * Map controller SDRAM bank 0
+	 */
+	memctl->memc_or4 = CONFIG_SYS_OR4_PRELIM;
+	memctl->memc_br4 = CONFIG_SYS_BR4_PRELIM;
+	memctl->memc_mamr = CONFIG_SYS_MAMR_8COL & (~(MAMR_PTAE));	/* no refresh yet */
+	udelay (200);
+
+	/*
+	 * Perform SDRAM initializsation sequence
+	 */
+	memctl->memc_mcr = 0x80008105;	/* SDRAM bank 0 */
+	udelay (1);
+	memctl->memc_mamr = (CONFIG_SYS_MAMR_8COL & ~(MAMR_TLFA_MSK)) | MAMR_TLFA_8X;
+	udelay (200);
+	memctl->memc_mcr = 0x80008130;	/* SDRAM bank 0 - execute twice */
+	udelay (1);
+	memctl->memc_mamr = (CONFIG_SYS_MAMR_8COL & ~(MAMR_TLFA_MSK)) | MAMR_TLFA_4X;
+	udelay (200);
+
+	memctl->memc_mamr |= MAMR_PTAE;	/* enable refresh */
+	udelay (1000);
+
+	/*
+	 * Preliminary prescaler for refresh (depends on number of
+	 * banks): This value is selected for four cycles every 62.4 us
+	 * with two SDRAM banks or four cycles every 31.2 us with one
+	 * bank. It will be adjusted after memory sizing.
+	 */
+	memctl->memc_mptpr = CONFIG_SYS_MPTPR_2BK_4K;	/* 16: but should be: CONFIG_SYS_MPTPR_1BK_4K */
+
+	/*
+	 * Check Bank 0 Memory Size for re-configuration
+	 *
+	 * try 8 column mode
+	 */
+	size8 = dram_size (CONFIG_SYS_MAMR_8COL, (long *) SDRAM_BASE4_PRELIM,
+			   SDRAM_MAX_SIZE);
+	udelay (1000);
+
+	/*
+	 * try 9 column mode
+	 */
+	size9 = dram_size (CONFIG_SYS_MAMR_9COL, (long *) SDRAM_BASE4_PRELIM,
+			   SDRAM_MAX_SIZE);
+
+	if (size8 < size9) {	/* leave configuration at 9 columns     */
+		size_b0 = size9;
+/*	debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size >> 20);	*/
+	} else {		/* back to 8 columns                    */
+		size_b0 = size8;
+		memctl->memc_mamr = CONFIG_SYS_MAMR_8COL;
+		udelay (500);
+/*	debug ("SDRAM Bank 0 in 8 column mode: %ld MB\n", size >> 20);	*/
+	}
+
+	udelay (1000);
+
+	/*
+	 * Adjust refresh rate depending on SDRAM type, both banks
+	 * For types > 128 MBit leave it at the current (fast) rate
+	 */
+	if ((size_b0 < 0x02000000)) {
+		/* reduce to 15.6 us (62.4 us / quad) */
+		memctl->memc_mptpr = CONFIG_SYS_MPTPR_2BK_4K;
+		udelay (1000);
+	}
+
+	/* SDRAM Bank 0 is bigger - map first       */
+
+	memctl->memc_or4 = ((-size_b0) & 0xFFFF0000) | CONFIG_SYS_OR_TIMING_SDRAM;
+	memctl->memc_br4 = (CONFIG_SYS_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
+
+	udelay (10000);
+
+	return (size_b0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+
+static long int dram_size (long int mamr_value, long int *base,
+			   long int maxsize)
+{
+	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+
+	memctl->memc_mamr = mamr_value;
+
+	return (get_ram_size (base, maxsize));
+}
+
+#ifdef CONFIG_CMD_DOC
+void doc_init (void)
+{
+	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+
+	upmconfig (UPMB, (uint *) static_table,
+		   sizeof (static_table) / sizeof (uint));
+	memctl->memc_mbmr = MAMR_DSA_1_CYCL;
+
+	doc_probe (FLASH_BASE1_PRELIM);
+}
+#endif
diff --git a/board/rbc823/u-boot.lds b/board/rbc823/u-boot.lds
new file mode 100644
index 0000000..b354409
--- /dev/null
+++ b/board/rbc823/u-boot.lds
@@ -0,0 +1,108 @@
+/*
+ * (C) Copyright 2000-2010
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.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
+ */
+
+OUTPUT_ARCH(powerpc)
+
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .text      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector layout of our flash chips!	XXX FIXME XXX	*/
+
+    arch/powerpc/cpu/mpc8xx/start.o	(.text*)
+    arch/powerpc/cpu/mpc8xx/traps.o	(.text*)
+
+    lib/libgeneric.o			(.text*)
+    net/libnet.o			(.text*)
+    arch/powerpc/cpu/mpc8xx/libmpc8xx.o	(.text*)
+    arch/powerpc/lib/libpowerpc.o	(.text*)
+
+    . = env_offset;
+    common/env_embedded.o		(.text*)
+
+    *(.text*)
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata    :
+  {
+    *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+  }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x00FF) & 0xFFFFFF00;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    _GOT2_TABLE_ = .;
+    KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
+    _FIXUP_TABLE_ = .;
+    KEEP(*(.fixup))
+  }
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
+  __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+  .data    :
+  {
+    *(.data*)
+    *(.sdata*)
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  . = .;
+
+  . = ALIGN(4);
+  .u_boot_list : {
+	KEEP(*(SORT(.u_boot_list*)));
+  }
+
+  . = .;
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(256);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(256);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss (NOLOAD)       :
+  {
+   *(.bss*)
+   *(.sbss*)
+   *(COMMON)
+   . = ALIGN(4);
+  }
+  __bss_end = . ;
+  PROVIDE (end = .);
+}