* Patch by Rune Torgersen, 13 Feb 2003:
Add support for Motorola MPC8266ADS board
* Patch by Kyle Harris, 19 Feb 2003:
patches for the Intel lubbock board:
memsetup.S - general cleanup (based on Robert's csb226 code)
flash.c - overhaul, actually works now
lubbock.c - fix init funcs to return proper value
* Patch by Kenneth Johansson, 26 Feb 2003:
- Fixed off by one in RFTA calculation.
- No need to abort when LDF is lower than we can program it's only
minimum timing so clamp it to what we can do.
- Takes function pointer to function for reading the spd_nvram. Usefull
for faking data or hardcode a module without the nvram.
- fix other user for above change
- fix some comments.
* Patches by Brian Waite, 26 Feb 2003:
- fix port for evb64260 board
- fix PCI for evb64260 board
- fix PCI scan
* Patch by Reinhard Meyer, 1 Mar 2003:
Add support for EMK TOP860 Module
* Patch by Yuli Barcohen, 02 Mar 2003:
Add SPD EEPROM support for MPC8260ADS board
diff --git a/board/emk/top860/top860.c b/board/emk/top860/top860.c
new file mode 100644
index 0000000..b99bf0e
--- /dev/null
+++ b/board/emk/top860/top860.c
@@ -0,0 +1,187 @@
+/*
+ * (C) Copyright 2003
+ * EMK Elektronik GmbH <www.emk-elektronik.de>
+ * Reinhard Meyer <r.meyer@emk-elektronik.de>
+ *
+ * Board specific routines for the TOP860
+ *
+ * - initialisation
+ * - interface to VPD data (mac address, clock speeds)
+ * - memory controller
+ * - serial io initialisation
+ * - ethernet io initialisation
+ *
+ * -----------------------------------------------------------------
+ * 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 <commproc.h>
+#include <mpc8xx.h>
+
+/*****************************************************************************
+ * UPM table for 60ns EDO RAM at 25 MHz bus/external clock
+ *****************************************************************************/
+static const uint edo_60ns_25MHz_tbl[] = {
+
+/* single read (offset 0x00 in upm ram) */
+ 0x0ff3fc04,0x08f3fc04,0x00f3fc04,0x00f3fc00,
+ 0x33f7fc07,0xfffffc05,0xfffffc05,0xfffffc05,
+/* burst read (offset 0x08 in upm ram) */
+ 0x0ff3fc04,0x08f3fc04,0x00f3fc0c,0x0ff3fc40,
+ 0x0cf3fc04,0x03f3fc48,0x0cf3fc04,0x03f3fc48,
+ 0x0cf3fc04,0x03f3fc00,0x3ff7fc07,0xfffffc05,
+ 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
+/* single write (offset 0x18 in upm ram) */
+ 0x0ffffc04,0x08fffc04,0x30fffc00,0xf1fffc07,
+ 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
+/* burst write (offset 0x20 in upm ram) */
+ 0x0ffffc04,0x08fffc00,0x00fffc04,0x03fffc4c,
+ 0x00fffc00,0x07fffc4c,0x00fffc00,0x0ffffc4c,
+ 0x00fffc00,0x3ffffc07,0xfffffc05,0xfffffc05,
+ 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
+/* refresh (offset 0x30 in upm ram) */
+ 0xc0fffc04,0x07fffc04,0x0ffffc04,0x0ffffc04,
+ 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
+ 0xfffffc05,0xfffffc05,0xfffffc05,0xfffffc05,
+/* exception (offset 0x3C in upm ram) */
+ 0xfffffc07,0xfffffc03,0xfffffc05,0xfffffc05,
+};
+
+/*****************************************************************************
+ * Print Board Identity
+ *****************************************************************************/
+int checkboard (void)
+{
+ puts ("Board:"CONFIG_IDENT_STRING"\n");
+ return (0);
+}
+
+/*****************************************************************************
+ * Initialize DRAM controller
+ *****************************************************************************/
+long int initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+
+ /*
+ * Only initialize memory controller when running from FLASH.
+ * When running from RAM, don't touch it.
+ */
+ if ((ulong) initdram & 0xff000000)
+ {
+ volatile uint *addr1, *addr2;
+ uint i, j;
+
+ upmconfig (UPMA, (uint *) edo_60ns_25MHz_tbl,
+ sizeof (edo_60ns_25MHz_tbl) / sizeof (uint));
+ memctl->memc_mptpr = 0x0200;
+ memctl->memc_mamr = 0x0ca20330;
+ memctl->memc_or2 = -CFG_DRAM_MAX | OR_CSNT_SAM;
+ memctl->memc_br2 = CFG_DRAM_BASE | BR_MS_UPMA | BR_V;
+ /*
+ * Do 8 read accesses to DRAM
+ */
+ addr1 = (volatile uint*) 0;
+ addr2 = (volatile uint*) 0x00400000;
+ for (i=0, j=0; i<8; i++)
+ j = addr1[0];
+
+ /*
+ * Now check whether we got 4MB or 16MB populated
+ */
+ addr1[0] = 0x12345678;
+ addr1[1] = 0x9abcdef0;
+ addr2[0] = 0xfeedc0de;
+ addr2[1] = 0x47110815;
+ if (addr1[0] == 0xfeedc0de && addr1[1] == 0x47110815)
+ {
+ /* only 4MB populated */
+ memctl->memc_or2 = -(CFG_DRAM_MAX/4) | OR_CSNT_SAM;
+ }
+ }
+
+ return -(memctl->memc_or2 & 0xffff0000);
+}
+
+/*****************************************************************************
+ * otherinits after RAM is there and we are relocated to RAM
+ * note: though this is an int function, nobody cares for the result!
+ *****************************************************************************/
+int misc_init_r (void)
+{
+ /* read 'factory' part of EEPROM */
+ uchar buf[81];
+ uchar *p;
+ uint length;
+ uint addr;
+ uint len;
+
+ /* get length first */
+ addr = CFG_FACT_OFFSET;
+ if (eeprom_read (CFG_I2C_FACT_ADDR, addr, buf, 2))
+ {
+bailout:
+ printf ("cannot read factory configuration\n");
+ printf ("be sure to set ethaddr yourself!\n");
+ return 0;
+ }
+ length = buf[0] + (buf[1]<<8);
+ addr += 2;
+
+ /* sanity check */
+ if (length < 20 || length > CFG_FACT_SIZE-2)
+ goto bailout;
+
+ /* read lines */
+ while (length > 0)
+ {
+ /* read one line */
+ len = length > 80 ? 80 : length;
+ if (eeprom_read (CFG_I2C_FACT_ADDR, addr, buf, len))
+ goto bailout;
+ /* mark end of buffer */
+ buf[len] = 0;
+ /* search end of line */
+ for (p=buf; *p && *p != 0x0a; p++) ;
+ if (!*p)
+ goto bailout;
+ *p++ = 0;
+ /* advance to next line start */
+ length -= p-buf;
+ addr += p-buf;
+ /*printf ("%s\n", buf);*/
+ /* search for our specific entry */
+ if (!strncmp ((char *)buf, "[RLA/lan/Ethernet] ", 19))
+ {
+ setenv ("ethaddr", buf+19);
+ }
+ else if (!strncmp ((char *)buf, "[BOARD/SERIAL] ", 15))
+ {
+ setenv ("serial#", buf+15);
+ }
+ else if (!strncmp ((char *)buf, "[BOARD/TYPE] ", 13))
+ {
+ setenv ("board_id", buf+13);
+ }
+ }
+ return (0);
+}
+