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authorwdenk <wdenk>2003-06-03 23:54:09 +0000
committerwdenk <wdenk>2003-06-03 23:54:09 +0000
commit682011ff6968198da14b89e40d9f55b00f6d91f7 (patch)
tree18793a72134a5262daf281ab0b904ab16f5337ac /board/rbc823
parent7a8e9bed17d7924a9c5c4699b1f6a3a0359524ed (diff)
downloadu-boot-linaro-stable-682011ff6968198da14b89e40d9f55b00f6d91f7.tar.gz
* Patches by Udi Finkelstein, 2 June 2003:LABEL_2003_06_04_0200
- Added support for custom keyboards, initialized by defining a board-specific drv_keyboard_init as well as defining CONFIG_KEYBOARD . - Added support for the RBC823 board. - cpu/mpc8xx/lcd.c now automatically calculates the Horizontal Pixel Count field. * Fix alignment problem in BOOTP (dhcp_leasetime option) [pointed out by Nicolas Lacressonnière, 2 Jun 2003] * Patch by Mark Rakes, 14 May 2003: add support for Intel e1000 gig cards. * Patch by Nye Liu, 3 Jun 2003: fix critical typo in MAMR definition (include/mpc8xx.h) * Fix requirement to align U-Boot image on 16 kB boundaries on PPC. * Patch by Klaus Heydeck, 2 Jun 2003 Minor changes for KUP4K configuration
Diffstat (limited to 'board/rbc823')
-rw-r--r--board/rbc823/Makefile40
-rw-r--r--board/rbc823/config.mk28
-rw-r--r--board/rbc823/flash.c470
-rw-r--r--board/rbc823/kbd.c269
-rw-r--r--board/rbc823/rbc823.c292
-rw-r--r--board/rbc823/u-boot.lds133
6 files changed, 1232 insertions, 0 deletions
diff --git a/board/rbc823/Makefile b/board/rbc823/Makefile
new file mode 100644
index 000000000..f912451b3
--- /dev/null
+++ b/board/rbc823/Makefile
@@ -0,0 +1,40 @@
+#
+# (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 $(TOPDIR)/config.mk
+
+LIB = lib$(BOARD).a
+
+OBJS = $(BOARD).o flash.o kbd.o
+
+$(LIB): .depend $(OBJS)
+ $(AR) crv $@ $^
+
+#########################################################################
+
+.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+ $(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/board/rbc823/config.mk b/board/rbc823/config.mk
new file mode 100644
index 000000000..199ea3c1f
--- /dev/null
+++ b/board/rbc823/config.mk
@@ -0,0 +1,28 @@
+#
+# (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
+#
+
+#
+# RBC823 boards
+#
+
+TEXT_BASE = 0xFFF00000
diff --git a/board/rbc823/flash.c b/board/rbc823/flash.c
new file mode 100644
index 000000000..f12d0be55
--- /dev/null
+++ b/board/rbc823/flash.c
@@ -0,0 +1,470 @@
+/*
+ * (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[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
+/*-----------------------------------------------------------------------
+ * 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, size_b1;
+ int i;
+
+ /* Init: no FLASHes known */
+ for (i=0; i < CFG_MAX_FLASH_BANKS; ++i)
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+
+ /* Detect size */
+ size_b0 = flash_get_size((vu_long *)CFG_FLASH_BASE, &flash_info[0]);
+
+ /* Setup offsets */
+ flash_get_offsets (CFG_FLASH_BASE, &flash_info[0]);
+
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
+ /* Monitor protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE+monitor_flash_len-1,
+ &flash_info[0]);
+#endif
+
+ size_b1 = 0 ;
+
+ flash_info[1].flash_id = FLASH_UNKNOWN;
+ flash_info[1].sector_count = -1;
+
+ flash_info[0].size = size_b0;
+ flash_info[1].size = size_b1;
+
+ return (size_b0 + size_b1);
+}
+
+/*-----------------------------------------------------------------------
+ * 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 */
+
+#if 0
+ printf("Base address is: %08x\n", caddr);
+#endif
+
+ caddr[0x0555] = 0xAA;
+ caddr[0x02AA] = 0x55;
+ caddr[0x0555] = 0x90;
+
+ value = caddr[0];
+
+#if 0
+ printf("Manufact ID: %02x\n", value);
+#endif
+ switch (value)
+ {
+ case 0x01:
+ case AMD_MANUFACT:
+ info->flash_id = FLASH_MAN_AMD;
+ break;
+
+ case 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 */
+#if 0
+ printf("Device ID: %02x\n", value);
+#endif
+ 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)
+ {
+ if ((now = get_timer(start)) > CFG_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
+ */
+ if ((l = addr - wp) != 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);
+ }
+
+ if ((rc = write_word(info, wp, data)) != 0) {
+ return (rc);
+ }
+ wp += 4;
+ }
+
+ /*
+ * handle word aligned part
+ */
+ while (cnt >= 4) {
+ data = 0;
+ for (i=0; i<4; ++i) {
+ data = (data << 8) | *src++;
+ }
+ if ((rc = write_word(info, wp, data)) != 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 *addr = (volatile unsigned char*)(info->start[0]),
+ *cdest,*cdata;
+ 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) > CFG_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 000000000..f1424e470
--- /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 <devices.h>
+#include <lcd.h>
+
+#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)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ volatile immap_t *im = (immap_t *)CFG_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 *)CFG_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 CFG_SDSR
+ im->im_sdma.sdma_sdsr = CFG_SDSR;
+#else
+ im->im_sdma.sdma_sdsr = 0x83;
+#endif
+
+ /* clear SDMA interrupt mask */
+#ifdef CFG_SDMR
+ im->im_sdma.sdma_sdmr = CFG_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 CFG_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 *)CFG_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 *)CFG_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 *)CFG_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;
+ device_t kbd_dev;
+
+ if (0) {
+ /* register the keyboard */
+ memset (&kbd_dev, 0, sizeof(device_t));
+ 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 = device_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 000000000..24ed5018f
--- /dev/null
+++ b/board/rbc823/rbc823.c
@@ -0,0 +1,292 @@
+/*
+ * (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)
+{
+ unsigned char *s = getenv("serial#");
+
+ if (!s || strncmp(s, "TQM8", 4)) {
+ printf ("### No HW ID - assuming RBC823\n");
+ return (0);
+ }
+
+ puts(s);
+ putc ('\n');
+
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+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, size8, size9;
+
+ upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+
+ /*
+ * 1 Bank of 64Mbit x 2 devices
+ */
+ memctl->memc_mptpr = CFG_MPTPR_1BK_4K;
+ memctl->memc_mar = 0x00000088;
+
+ /*
+ * Map controller SDRAM bank 0
+ */
+ memctl->memc_or4 = CFG_OR4_PRELIM;
+ memctl->memc_br4 = CFG_BR4_PRELIM;
+ memctl->memc_mamr = CFG_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 = (CFG_MAMR_8COL & ~(MAMR_TLFA_MSK)) | MAMR_TLFA_8X;
+ udelay(200);
+ memctl->memc_mcr = 0x80008130; /* SDRAM bank 0 - execute twice */
+ udelay(1);
+ memctl->memc_mamr = (CFG_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 = CFG_MPTPR_2BK_4K; // 16: but should be: CFG_MPTPR_1BK_4K
+
+ /*
+ * Check Bank 0 Memory Size for re-configuration
+ *
+ * try 8 column mode
+ */
+ size8 = dram_size (CFG_MAMR_8COL, (ulong *)SDRAM_BASE4_PRELIM, SDRAM_MAX_SIZE);
+ udelay (1000);
+
+ /*
+ * try 9 column mode
+ */
+ size9 = dram_size (CFG_MAMR_9COL, (ulong *)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 = CFG_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 = CFG_MPTPR_2BK_4K;
+ udelay(1000);
+ }
+
+ /* SDRAM Bank 0 is bigger - map first */
+
+ memctl->memc_or4 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ memctl->memc_br4 = (CFG_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 *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ volatile long int *addr;
+ long int cnt, val;
+
+ memctl->memc_mamr = mamr_value;
+
+ for (cnt = maxsize/sizeof(long)/2; cnt > 0; cnt >>= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ *addr = ~cnt;
+ }
+
+ /* write 0 to base address */
+ addr = base;
+ *addr = 0;
+
+ /* check at base address */
+ if ((val = *addr) != 0) {
+ return (0);
+ }
+
+ for (cnt = 1; cnt < maxsize/sizeof(long) ; cnt <<= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ val = *addr;
+
+ if (val != (~cnt)) {
+ return (cnt * sizeof(long));
+ }
+ }
+ return cnt * sizeof(long);
+ /* NOTREACHED */
+}
+
+void doc_init(void)
+{
+ volatile immap_t *immap = (immap_t *)CFG_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);
+}
+
diff --git a/board/rbc823/u-boot.lds b/board/rbc823/u-boot.lds
new file mode 100644
index 000000000..b3ed704d4
--- /dev/null
+++ b/board/rbc823/u-boot.lds
@@ -0,0 +1,133 @@
+/*
+ * (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
+ */
+
+OUTPUT_ARCH(powerpc)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ . = + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .rel.text : { *(.rel.text) }
+ .rela.text : { *(.rela.text) }
+ .rel.data : { *(.rel.data) }
+ .rela.data : { *(.rela.data) }
+ .rel.rodata : { *(.rel.rodata) }
+ .rela.rodata : { *(.rela.rodata) }
+ .rel.got : { *(.rel.got) }
+ .rela.got : { *(.rela.got) }
+ .rel.ctors : { *(.rel.ctors) }
+ .rela.ctors : { *(.rela.ctors) }
+ .rel.dtors : { *(.rel.dtors) }
+ .rela.dtors : { *(.rela.dtors) }
+ .rel.bss : { *(.rel.bss) }
+ .rela.bss : { *(.rela.bss) }
+ .rel.plt : { *(.rel.plt) }
+ .rela.plt : { *(.rela.plt) }
+ .init : { *(.init) }
+ .plt : { *(.plt) }
+ .text :
+ {
+ /* WARNING - the following is hand-optimized to fit within */
+ /* the sector layout of our flash chips! XXX FIXME XXX */
+
+ cpu/mpc8xx/start.o (.text)
+ common/dlmalloc.o (.text)
+ lib_ppc/ppcstring.o (.text)
+ lib_generic/vsprintf.o (.text)
+ lib_generic/crc32.o (.text)
+ lib_generic/zlib.o (.text)
+
+ . = env_offset;
+ common/environment.o(.text)
+
+ *(.text)
+ *(.fixup)
+ *(.got1)
+ }
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(.rodata)
+ *(.rodata1)
+ }
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x00FF) & 0xFFFFFF00;
+ _erotext = .;
+ PROVIDE (erotext = .);
+ .reloc :
+ {
+ *(.got)
+ _GOT2_TABLE_ = .;
+ *(.got2)
+ _FIXUP_TABLE_ = .;
+ *(.fixup)
+ }
+ __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+ __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+ .data :
+ {
+ *(.data)
+ *(.data1)
+ *(.sdata)
+ *(.sdata2)
+ *(.dynamic)
+ CONSTRUCTORS
+ }
+ _edata = .;
+ PROVIDE (edata = .);
+
+ __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 :
+ {
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ }
+ _end = . ;
+ PROVIDE (end = .);
+}
+