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authorwdenk <wdenk>2002-11-03 00:07:02 +0000
committerwdenk <wdenk>2002-11-03 00:07:02 +0000
commit5b1d713721c3ea02549940133f09236783dda1f9 (patch)
tree78c0a58b5cc48142617190669a7598e0ca3307dc /board
parent47d1a6e1ed87fe1fb3d737acdb85f69bc3259522 (diff)
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Initial revision
Diffstat (limited to 'board')
-rw-r--r--board/RPXClassic/RPXClassic.c290
-rw-r--r--board/RPXClassic/config.mk29
-rw-r--r--board/RPXClassic/flash.c447
-rw-r--r--board/RPXlite/RPXlite.c195
-rw-r--r--board/iphase4539/flash.c490
-rw-r--r--board/sixnet/sixnet.c563
6 files changed, 2014 insertions, 0 deletions
diff --git a/board/RPXClassic/RPXClassic.c b/board/RPXClassic/RPXClassic.c
new file mode 100644
index 0000000..4d2100b
--- /dev/null
+++ b/board/RPXClassic/RPXClassic.c
@@ -0,0 +1,290 @@
+/*
+ * (C) Copyright 2001
+ * Stäubli Faverges - <www.staubli.com>
+ * Pierre AUBERT p.aubert@staubli.com
+ * U-Boot port on RPXClassic LF (CLLF_BW31) board
+ *
+ * (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 <i2c.h>
+#include <config.h>
+#include <mpc8xx.h>
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+static unsigned char aschex_to_byte (unsigned char *cp);
+
+/* ------------------------------------------------------------------------- */
+
+#define _NOT_USED_ 0xFFFFCC25
+
+const uint sdram_table[] =
+{
+ /*
+ * Single Read. (Offset 00h in UPMA RAM)
+ */
+ 0xCFFFCC24, 0x0FFFCC04, 0X0CAFCC04, 0X03AFCC08,
+ 0x3FBFCC27, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Burst Read. (Offset 08h in UPMA RAM)
+ */
+ 0xCFFFCC24, 0x0FFFCC04, 0x0CAFCC84, 0x03AFCC88,
+ 0x3FBFCC27, /* last */
+ _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 18h in UPMA RAM)
+ */
+ 0xCFFFCC24, 0x0FFFCC04, 0x0CFFCC04, 0x03FFCC00,
+ 0x3FFFCC27, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Burst Write. (Offset 20h in UPMA RAM)
+ */
+ 0xCFFFCC24, 0x0FFFCC04, 0x0CFFCC80, 0x03FFCC8C,
+ 0x0CFFCC00, 0x33FFCC27, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Refresh. (Offset 30h in UPMA RAM)
+ */
+ 0xC0FFCC24, 0x03FFCC24, 0x0FFFCC24, 0x0FFFCC24,
+ 0x3FFFCC27, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Exception. (Offset 3Ch in UPMA RAM)
+ */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_
+};
+
+/* ------------------------------------------------------------------------- */
+
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+ puts ("Board: RPXClassic\n");
+ return (0);
+}
+
+/*-----------------------------------------------------------------------------
+ * board_get_enetaddr -- Read the MAC Address in the I2C EEPROM
+ *-----------------------------------------------------------------------------
+ */
+void board_get_enetaddr (uchar * enet)
+{
+ int i;
+ char buff[256], *cp;
+
+ /* Initialize I2C */
+ i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+
+ /* Read 256 bytes in EEPROM */
+ i2c_read (0x54, 0, 1, buff, 128);
+ i2c_read (0x54, 128, 1, buff + 128, 128);
+
+ /* Retrieve MAC address in buffer (key EA) */
+ for (cp = buff;;) {
+ if (cp[0] == 'E' && cp[1] == 'A') {
+ cp += 3;
+ /* Read MAC address */
+ for (i = 0; i < 6; i++, cp += 2) {
+ enet[i] = aschex_to_byte (cp);
+ }
+ }
+ /* Scan to the end of the record */
+ while ((*cp != '\n') && (*cp != 0xff)) {
+ cp++;
+ }
+ /* If the next character is a \n, 0 or ff, we are done. */
+ cp++;
+ if ((*cp == '\n') || (*cp == 0) || (*cp == 0xff))
+ break;
+ }
+
+#ifdef CONFIG_FEC_ENET
+ /* The MAC address is the same as normal ethernet except the 3rd byte */
+ /* (See the E.P. Planet Core Overview manual */
+ enet[3] |= 0x80;
+
+ /* Validate the fast ethernet tranceiver */
+ *((volatile uchar *) BCSR2) &= ~BCSR2_MIICTL;
+ *((volatile uchar *) BCSR2) &= ~BCSR2_MIIPWRDWN;
+ *((volatile uchar *) BCSR2) |= BCSR2_MIIRST;
+ *((volatile uchar *) BCSR2) |= BCSR2_MIIPWRDWN;
+#endif
+
+ printf ("MAC address = %02x:%02x:%02x:%02x:%02x:%02x\n",
+ enet[0], enet[1], enet[2], enet[3], enet[4], enet[5]);
+
+}
+
+void rpxclassic_init (void)
+{
+ /* Enable NVRAM */
+ *((uchar *) BCSR0) |= BCSR0_ENNVRAM;
+
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ long int size10;
+
+ upmconfig (UPMA, (uint *) sdram_table,
+ sizeof (sdram_table) / sizeof (uint));
+
+ /* Refresh clock prescalar */
+ memctl->memc_mptpr = CFG_MPTPR;
+
+ memctl->memc_mar = 0x00000000;
+
+ /* Map controller banks 1 to the SDRAM bank */
+ memctl->memc_or1 = CFG_OR1_PRELIM;
+ memctl->memc_br1 = CFG_BR1_PRELIM;
+
+ memctl->memc_mamr = CFG_MAMR_10COL & (~(MAMR_PTAE)); /* no refresh yet */
+
+ udelay (200);
+
+ /* perform SDRAM initializsation sequence */
+
+ memctl->memc_mcr = 0x80002230; /* SDRAM bank 0 - refresh twice */
+ udelay (1);
+
+ memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
+
+ udelay (1000);
+
+ /* Check Bank 0 Memory Size
+ * try 10 column mode
+ */
+
+ size10 = dram_size (CFG_MAMR_10COL, (ulong *) SDRAM_BASE_PRELIM,
+ SDRAM_MAX_SIZE);
+
+ return (size10);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * 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;
+ ulong cnt, val;
+ ulong save[32]; /* to make test non-destructive */
+ unsigned char i = 0;
+
+ memctl->memc_mamr = mamr_value;
+
+ for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ /* 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);
+}
+static unsigned char aschex_to_byte (unsigned 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);
+}
diff --git a/board/RPXClassic/config.mk b/board/RPXClassic/config.mk
new file mode 100644
index 0000000..ae455e1
--- /dev/null
+++ b/board/RPXClassic/config.mk
@@ -0,0 +1,29 @@
+#
+# (C) Copyright 2001
+# Stäubli Faverges - <www.staubli.com>
+# Pierre AUBERT p.aubert@staubli.com
+# U-Boot port on RPXClassic LF (CLLF_BW31) board
+#
+# (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
+#
+
+TEXT_BASE = 0xff000000
diff --git a/board/RPXClassic/flash.c b/board/RPXClassic/flash.c
new file mode 100644
index 0000000..6293497
--- /dev/null
+++ b/board/RPXClassic/flash.c
@@ -0,0 +1,447 @@
+/*
+ * (C) Copyright 2001
+ * Stäubli Faverges - <www.staubli.com>
+ * Pierre AUBERT p.aubert@staubli.com
+ * U-Boot port on RPXClassic LF (CLLF_BW31) board
+ *
+ * RPXClassic uses Am29DL323B flash memory with 2 banks
+ *
+ *
+ * (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 ;
+ int i;
+
+ /* Init: no FLASHes known */
+ for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ }
+
+ size_b0 = flash_get_size((vu_long *)CFG_FLASH_BASE, &flash_info[0]);
+
+
+ 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+CFG_MONITOR_LEN-1,
+ &flash_info[0]);
+#endif
+
+ flash_info[0].size = size_b0;
+
+ return (size_b0);
+}
+
+/*-----------------------------------------------------------------------
+ */
+static void flash_get_offsets (ulong base, flash_info_t *info)
+{
+ int i;
+
+ if (info->flash_id & FLASH_BTYPE) {
+ /* set sector offsets for bottom boot block type */
+ info->start[0] = base + 0x00000000;
+ info->start[1] = base + 0x00008000;
+ info->start[2] = base + 0x00010000;
+ info->start[3] = base + 0x00018000;
+ info->start[4] = base + 0x00020000;
+ info->start[5] = base + 0x00028000;
+ info->start[6] = base + 0x00030000;
+ info->start[7] = base + 0x00038000;
+ for (i = 8; i < info->sector_count; i++) {
+ info->start[i] = base + ((i-7) * 0x00040000) ;
+ }
+ }
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info (flash_info_t *info)
+{
+ int i;
+
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("missing or unknown FLASH type\n");
+ return;
+ }
+
+ switch (info->flash_id & FLASH_VENDMASK) {
+ case FLASH_MAN_AMD: printf ("AMD "); break;
+ default: printf ("Unknown Vendor "); break;
+ }
+
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_AMDL323B:
+ printf ("AMDL323DB (16 Mbytes, bottom boot sect)\n");
+ break;
+ default:
+ printf ("Unknown Chip Type\n");
+ break;
+ }
+
+ printf (" Size: %ld MB in %d Sectors\n",
+ info->size >> 20, info->sector_count);
+
+ printf (" Sector Start Addresses:");
+ for (i=0; i<info->sector_count; ++i) {
+ if ((i % 5) == 0)
+ printf ("\n ");
+ printf (" %08lX%s",
+ info->start[i],
+ info->protect[i] ? " (RO)" : " "
+ );
+ }
+ printf ("\n");
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+
+/*-----------------------------------------------------------------------
+ */
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+
+static ulong flash_get_size (vu_long *addr, flash_info_t *info)
+{
+ short i;
+ ulong value;
+ ulong base = (ulong)addr;
+
+ /* Reset flash componeny */
+ addr [0] = 0xf0f0f0f0;
+
+ /* Write auto select command: read Manufacturer ID */
+ addr[0xAAA] = 0xAAAAAAAA ;
+ addr[0x555] = 0x55555555 ;
+ addr[0xAAA] = 0x90909090 ;
+
+ value = addr[0] ;
+
+ switch (value & 0x00FF00FF) {
+ case AMD_MANUFACT:
+ info->flash_id = FLASH_MAN_AMD;
+ break;
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
+ return (0); /* no or unknown flash */
+ }
+
+ value = addr[2] ; /* device ID */
+
+ switch (value & 0x00FF00FF) {
+ case (AMD_ID_DL323B & 0x00FF00FF):
+ info->flash_id += FLASH_AMDL323B;
+ info->sector_count = 71;
+ info->size = 0x01000000; /* 16 Mb */
+
+ break;
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ return (0); /* => no or unknown flash */
+
+ }
+ /* set up sector start address table */
+ /* set sector offsets for bottom boot block type */
+ info->start[0] = base + 0x00000000;
+ info->start[1] = base + 0x00008000;
+ info->start[2] = base + 0x00010000;
+ info->start[3] = base + 0x00018000;
+ info->start[4] = base + 0x00020000;
+ info->start[5] = base + 0x00028000;
+ info->start[6] = base + 0x00030000;
+ info->start[7] = base + 0x00038000;
+ for (i = 8; i < info->sector_count; i++) {
+ info->start[i] = base + ((i-7) * 0x00040000) ;
+ }
+
+ /* check for protected sectors */
+ for (i = 0; i < 23; i++) {
+ /* read sector protection at sector address, (A7 .. A0) = 0x02 */
+ /* D0 = 1 if protected */
+ addr = (volatile unsigned long *)(info->start[i]);
+ info->protect[i] = addr[4] & 1 ;
+ }
+ /* Check for protected sectors in the 2nd bank */
+ addr[0x100AAA] = 0xAAAAAAAA ;
+ addr[0x100555] = 0x55555555 ;
+ addr[0x100AAA] = 0x90909090 ;
+
+ for (i = 23; i < info->sector_count; i++) {
+ /* read sector protection at sector address, (A7 .. A0) = 0x02 */
+ /* D0 = 1 if protected */
+ addr = (volatile unsigned long *)(info->start[i]);
+ info->protect[i] = addr[4] & 1 ;
+ }
+
+ /*
+ * Prevent writes to uninitialized FLASH.
+ */
+ if (info->flash_id != FLASH_UNKNOWN) {
+ addr = (volatile unsigned long *)info->start[0];
+
+ *addr = 0xF0F0F0F0; /* reset bank 1 */
+ addr = (volatile unsigned long *)info->start[23];
+
+ *addr = 0xF0F0F0F0; /* reset bank 2 */
+
+ }
+
+ return (info->size);
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+ vu_long *addr = (vu_long*)(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 %08lx - aborted\n",
+ info->flash_id);
+ 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[0xAAA] = 0xAAAAAAAA;
+ addr[0x555] = 0x55555555;
+ addr[0xAAA] = 0x80808080;
+ addr[0xAAA] = 0xAAAAAAAA;
+ addr[0x555] = 0x55555555;
+
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect<=s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ addr = (vu_long *)(info->start[sect]) ;
+ addr[0] = 0x30303030 ;
+ 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 = (vu_long *)(info->start[l_sect]);
+ while ((addr[0] & 0x80808080) != 0x80808080) {
+ 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 = (vu_long *)info->start[0];
+ addr[0] = 0xF0F0F0F0; /* 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)
+{
+ vu_long *addr = (vu_long *)(info->start[0]);
+ ulong start;
+ int flag;
+
+ /* Check if Flash is (sufficiently) erased */
+ if ((*((vu_long *)dest) & data) != data) {
+ return (2);
+ }
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ addr[0xAAA] = 0xAAAAAAAA;
+ addr[0x555] = 0x55555555;
+ addr[0xAAA] = 0xA0A0A0A0;
+
+ *((vu_long *)dest) = data;
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
+
+ /* data polling for D7 */
+ start = get_timer (0);
+ while ((*((vu_long *)dest) & 0x80808080) != (data & 0x80808080)) {
+ if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+ return (1);
+ }
+ }
+ return (0);
+}
+
+/*-----------------------------------------------------------------------
+ */
diff --git a/board/RPXlite/RPXlite.c b/board/RPXlite/RPXlite.c
new file mode 100644
index 0000000..a33357b
--- /dev/null
+++ b/board/RPXlite/RPXlite.c
@@ -0,0 +1,195 @@
+/*
+ * (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
+ */
+
+/*
+ * Yoo. Jonghoon, IPone, yooth@ipone.co.kr
+ * U-Boot port on RPXlite board
+ *
+ * DRAM related UPMA register values are modified.
+ * See RPXLite engineering note : 50MHz/60ns - UPM RAM WORDS
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+
+/* ------------------------------------------------------------------------- */
+
+#define _NOT_USED_ 0xFFFFCC25
+
+const uint sdram_table[] =
+{
+ /*
+ * Single Read. (Offset 00h in UPMA RAM)
+ */
+ 0xCFFFCC24, 0x0FFFCC04, 0X0CAFCC04, 0X03AFCC08,
+ 0x3FBFCC27, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Burst Read. (Offset 08h in UPMA RAM)
+ */
+ 0xCFFFCC24, 0x0FFFCC04, 0x0CAFCC84, 0x03AFCC88,
+ 0x3FBFCC27, /* last */
+ _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 18h in UPMA RAM)
+ */
+ 0xCFFFCC24, 0x0FFFCC04, 0x0CFFCC04, 0x03FFCC00,
+ 0x3FFFCC27, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Burst Write. (Offset 20h in UPMA RAM)
+ */
+ 0xCFFFCC24, 0x0FFFCC04, 0x0CFFCC80, 0x03FFCC8C,
+ 0x0CFFCC00, 0x33FFCC27, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Refresh. (Offset 30h in UPMA RAM)
+ */
+ 0xC0FFCC24, 0x03FFCC24, 0x0FFFCC24, 0x0FFFCC24,
+ 0x3FFFCC27, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Exception. (Offset 3Ch in UPMA RAM)
+ */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_
+};
+
+/* ------------------------------------------------------------------------- */
+
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+ puts ("Board: RPXlite\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 size10 ;
+
+ upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+
+ /* Refresh clock prescalar */
+ memctl->memc_mptpr = CFG_MPTPR ;
+
+ memctl->memc_mar = 0x00000000;
+
+ /* Map controller banks 1 to the SDRAM bank */
+ memctl->memc_or1 = CFG_OR1_PRELIM;
+ memctl->memc_br1 = CFG_BR1_PRELIM;
+
+ memctl->memc_mamr = CFG_MAMR_10COL & (~(MAMR_PTAE)); /* no refresh yet */
+
+ udelay(200);
+
+ /* perform SDRAM initializsation sequence */
+
+ memctl->memc_mcr = 0x80002230 ; /* SDRAM bank 0 - refresh twice */
+ udelay(1);
+
+ memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
+
+ udelay (1000);
+
+ /* Check Bank 0 Memory Size
+ * try 10 column mode
+ */
+
+ size10 = dram_size (CFG_MAMR_10COL, (ulong *)SDRAM_BASE_PRELIM, SDRAM_MAX_SIZE) ;
+
+ return (size10);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * 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;
+ ulong cnt, val;
+ ulong save[32]; /* to make test non-destructive */
+ unsigned char i = 0;
+
+ memctl->memc_mamr = mamr_value;
+
+ for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ /* 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);
+}
diff --git a/board/iphase4539/flash.c b/board/iphase4539/flash.c
new file mode 100644
index 0000000..401ffbe
--- /dev/null
+++ b/board/iphase4539/flash.c
@@ -0,0 +1,490 @@
+/*
+ * (C) Copyright 2001
+ * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
+ *
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Adapted for Interphase 4539 by Wolfgang Grandegger <wg@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 <config.h>
+#include <common.h>
+#include <flash.h>
+#include <asm/io.h>
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+extern int hwc_flash_size(void);
+static ulong flash_get_size (u32 addr, flash_info_t *info);
+static int flash_get_offsets (u32 base, flash_info_t *info);
+static int write_word (flash_info_t *info, ulong dest, ulong data);
+static void flash_reset (u32 addr);
+
+#define out8(a,v) *(volatile unsigned char*)(a) = v
+#define in8(a) *(volatile unsigned char*)(a)
+#define in32(a) *(volatile unsigned long*)(a)
+#define iobarrier_rw() eieio()
+
+unsigned long flash_init (void)
+{
+ unsigned int i;
+ unsigned long flash_size = 0;
+ unsigned long bank_size;
+ unsigned int bank = 0;
+
+ /* Init: no FLASHes known */
+ for (i=0; i < CFG_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ flash_info[i].sector_count = 0;
+ flash_info[i].size = 0;
+ }
+
+ /* Initialise the BOOT Flash */
+ if (bank == CFG_MAX_FLASH_BANKS) {
+ puts ("Warning: not all Flashes are initialised !");
+ return flash_size;
+ }
+
+ bank_size = flash_get_size (CFG_FLASH_BASE, flash_info + bank);
+ if (bank_size) {
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE && \
+ CFG_MONITOR_BASE < CFG_FLASH_BASE + CFG_MAX_FLASH_SIZE
+ /* monitor protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1,
+ flash_info + bank);
+#endif
+
+#ifdef CFG_ENV_IS_IN_FLASH
+ /* ENV protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,
+ flash_info + bank);
+#endif
+
+ /* HWC protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_FLASH_BASE,
+ CFG_FLASH_BASE + 0x10000 - 1,
+ flash_info + bank);
+
+ flash_size += bank_size;
+ bank++;
+ } else {
+ puts ("Warning: the BOOT Flash is not initialised !");
+ }
+
+ return flash_size;
+}
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+static ulong flash_get_size (u32 addr, flash_info_t *info)
+{
+ volatile uchar value;
+#if 0
+ int i;
+#endif
+
+ /* Write auto select command: read Manufacturer ID */
+ out8(addr + 0x0555, 0xAA);
+ iobarrier_rw();
+ udelay(10);
+ out8(addr + 0x02AA, 0x55);
+ iobarrier_rw();
+ udelay(10);
+ out8(addr + 0x0555, 0x90);
+ iobarrier_rw();
+ udelay(10);
+
+ value = in8(addr);
+ iobarrier_rw();
+ udelay(10);
+ switch (value | (value << 16)) {
+ 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;
+ flash_reset (addr);
+ return 0;
+ }
+
+ value = in8(addr + 1); /* device ID */
+ iobarrier_rw();
+
+ switch (value) {
+ case AMD_ID_LV033C:
+ info->flash_id += FLASH_AM033C;
+ info->size = hwc_flash_size();
+ if (info->size > CFG_MAX_FLASH_SIZE) {
+ printf("U-Boot supports only %d MB\n",
+ CFG_MAX_FLASH_SIZE);
+ info->size = CFG_MAX_FLASH_SIZE;
+ }
+ info->sector_count = info->size / 0x10000;
+ break; /* => 4 MB */
+
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ flash_reset (addr);
+ return (0); /* => no or unknown flash */
+
+ }
+
+ if (!flash_get_offsets (addr, info)) {
+ flash_reset (addr);
+ return 0;
+ }
+
+#if 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 */
+ value = in8(info->start[i] + 2);
+ iobarrier_rw();
+ info->protect[i] = (value & 1) != 0;
+ }
+#endif
+
+ /*
+ * Reset bank to read mode
+ */
+ flash_reset (addr);
+
+ return (info->size);
+}
+
+static int flash_get_offsets (u32 base, flash_info_t *info)
+{
+ unsigned int i, size;
+
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_AM033C:
+ /* set sector offsets for uniform sector type */
+ size = info->size / info->sector_count;
+ for (i = 0; i < info->sector_count; i++) {
+ info->start[i] = base + i * size;
+ }
+ break;
+ default:
+ return 0;
+ }
+
+ return 1;
+}
+
+int flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+ volatile u32 addr = 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 %08lx - aborted\n",
+ info->flash_id);
+ 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();
+
+ out8(addr + 0x555, 0xAA);
+ iobarrier_rw();
+ out8(addr + 0x2AA, 0x55);
+ iobarrier_rw();
+ out8(addr + 0x555, 0x80);
+ iobarrier_rw();
+ out8(addr + 0x555, 0xAA);
+ iobarrier_rw();
+ out8(addr + 0x2AA, 0x55);
+ iobarrier_rw();
+
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect<=s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ addr = info->start[sect];
+ out8(addr, 0x30);
+ iobarrier_rw();
+ 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 = info->start[l_sect];
+ while ((in8(addr) & 0x80) != 0x80) {
+ 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;
+ }
+ iobarrier_rw();
+ }
+
+DONE:
+ /* reset to read mode */
+ flash_reset (info->start[0]);
+
+ 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 u32 addr = info->start[0];
+ ulong start;
+ int flag, i;
+
+ /* Check if Flash is (sufficiently) erased */
+ if ((in32(dest) & data) != data) {
+ return (2);
+ }
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ /* first, perform an unlock bypass command to speed up flash writes */
+ out8(addr + 0x555, 0xAA);
+ iobarrier_rw();
+ out8(addr + 0x2AA, 0x55);
+ iobarrier_rw();
+ out8(addr + 0x555, 0x20);
+ iobarrier_rw();
+
+ /* write each byte out */
+ for (i = 0; i < 4; i++) {
+ char *data_ch = (char *)&data;
+ out8(addr, 0xA0);
+ iobarrier_rw();
+ out8(dest+i, data_ch[i]);
+ iobarrier_rw();
+ udelay(10); /* XXX */
+ }
+
+ /* we're done, now do an unlock bypass reset */
+ out8(addr, 0x90);
+ iobarrier_rw();
+ out8(addr, 0x00);
+ iobarrier_rw();
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
+
+ /* data polling for D7 */
+ start = get_timer (0);
+ while ((in32(dest) & 0x80808080) != (data & 0x80808080)) {
+ if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+ return (1);
+ }
+ iobarrier_rw();
+ }
+
+ flash_reset (addr);
+
+ return (0);
+}
+
+/*
+ * Reset bank to read mode
+ */
+static void flash_reset (u32 addr)
+{
+ out8(addr, 0xF0); /* reset bank */
+ iobarrier_rw();
+}
+
+void flash_print_info (flash_info_t *info)
+{
+ int i;
+
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("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_AM033C: printf ("AM29LV033C (32 Mbit, uniform sectors)\n");
+ break;
+ default: printf ("Unknown Chip Type\n");
+ break;
+ }
+
+ if (info->size % 0x100000 == 0) {
+ printf (" Size: %ld MB in %d Sectors\n",
+ info->size / 0x100000, info->sector_count);
+ }
+ else if (info->size % 0x400 == 0) {
+ printf (" Size: %ld KB in %d Sectors\n",
+ info->size / 0x400, info->sector_count);
+ }
+ else {
+ printf (" Size: %ld B in %d Sectors\n",
+ info->size, info->sector_count);
+ }
+
+ printf (" Sector Start Addresses:");
+ for (i=0; i<info->sector_count; ++i) {
+ if ((i % 5) == 0)
+ printf ("\n ");
+ printf (" %08lX%s",
+ info->start[i],
+ info->protect[i] ? " (RO)" : " "
+ );
+ }
+ printf ("\n");
+}
diff --git a/board/sixnet/sixnet.c b/board/sixnet/sixnet.c
new file mode 100644
index 0000000..c65e809
--- /dev/null
+++ b/board/sixnet/sixnet.c
@@ -0,0 +1,563 @@
+/*
+ * (C) Copyright 2001, 2002
+ * Dave Ellis, SIXNET, dge@sixnetio.com.
+ * Based on code by:
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * and other contributors to U-Boot. 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 <config.h>
+#include <mpc8xx.h>
+#include <net.h> /* for eth_init() */
+#include <rtc.h>
+#include "sixnet.h"
+
+#define ORMASK(size) ((-size) & OR_AM_MSK)
+
+static long ram_size(ulong *, long);
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check Board Identity:
+ * returns 0 if recognized, -1 if unknown
+ */
+
+int checkboard (void)
+{
+ puts ("Board: SIXNET SXNI855T\n");
+ return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
+#error "SXNI855T has no PCMCIA port"
+#endif /* CFG_CMD_PCMCIA */
+
+/* ------------------------------------------------------------------------- */
+
+#define _not_used_ 0xffffffff
+
+/* UPMB table for dual UART. */
+
+/* this table is for 50MHz operation, it should work at all lower speeds */
+const uint duart_table[] =
+{
+ /* single read. (offset 0 in upm RAM) */
+ 0xfffffc04, 0x0ffffc04, 0x0ff3fc04, 0x0ff3fc04,
+ 0x0ff3fc00, 0x0ff3fc04, 0xfffffc04, 0xfffffc05,
+
+ /* burst read. (offset 8 in upm RAM) */
+ _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_,
+
+ /* single write. (offset 18 in upm RAM) */
+ 0xfffffc04, 0x0ffffc04, 0x00fffc04, 0x00fffc04,
+ 0x00fffc04, 0x00fffc00, 0xfffffc04, 0xfffffc05,
+
+ /* burst write. (offset 20 in upm RAM) */
+ _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_,
+
+ /* refresh. (offset 30 in upm RAM) */
+ _not_used_, _not_used_, _not_used_, _not_used_,
+ _not_used_, _not_used_, _not_used_, _not_used_,
+ _not_used_, _not_used_, _not_used_, _not_used_,
+
+ /* exception. (offset 3c in upm RAM) */
+ _not_used_, _not_used_, _not_used_, _not_used_,
+};
+
+/* Load FPGA very early in boot sequence, since it must be
+ * loaded before the 16C2550 serial channels can be used as
+ * console channels.
+ *
+ * Note: Much of the configuration is not complete. The
+ * stack is in DPRAM since SDRAM has not been initialized,
+ * so the stack must be kept small. Global variables
+ * are still in FLASH, so they cannot be written.
+ * Only the FLASH, DPRAM, immap and FPGA can be addressed,
+ * the other chip selects may not have been initialized.
+ * The clocks have been initialized, so udelay() can be
+ * used.
+ */
+#define FPGA_DONE 0x0080 /* PA8, input, high when FPGA load complete */
+#define FPGA_PROGRAM_L 0x0040 /* PA9, output, low to reset, high to start */
+#define FPGA_INIT_L 0x0020 /* PA10, input, low indicates not ready */
+#define fpga (*(volatile unsigned char *)(CFG_FPGA_PROG)) /* FPGA port */
+
+int board_postclk_init (void)
+{
+
+ /* the data to load to the XCSxxXL FPGA */
+ static const unsigned char fpgadata[] = {
+# include "fpgadata.c"
+ };
+
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+#define porta (immap->im_ioport.iop_padat)
+ const unsigned char* pdata;
+
+ /* /INITFPGA and DONEFPGA signals are inputs */
+ immap->im_ioport.iop_padir &= ~(FPGA_INIT_L | FPGA_DONE);
+
+ /* Force output pin to begin at 0, /PROGRAM asserted (0) resets FPGA */
+ porta &= ~FPGA_PROGRAM_L;
+
+ /* Set FPGA as an output */
+ immap->im_ioport.iop_padir |= FPGA_PROGRAM_L;
+
+ /* delay a little to make sure FPGA sees it, really
+ * only need less than a microsecond.
+ */
+ udelay(10);
+
+ /* unassert /PROGRAM */
+ porta |= FPGA_PROGRAM_L;
+
+ /* delay while FPGA does last erase, indicated by
+ * /INITFPGA going high. This should happen within a
+ * few milliseconds.
+ */
+ /* ### FIXME - a timeout check would be good, maybe flash
+ * the status LED to indicate the error?
+ */
+ while ((porta & FPGA_INIT_L) == 0)
+ ; /* waiting */
+
+ /* write program data to FPGA at the programming address
+ * so extra /CS1 strobes at end of configuration don't actually
+ * write to any registers.
+ */
+ fpga = 0xff; /* first write is ignored */
+ fpga = 0xff; /* fill byte */
+ fpga = 0xff; /* fill byte */
+ fpga = 0x4f; /* preamble code */
+ fpga = 0x80; fpga = 0xaf; fpga = 0x9b; /* length (ignored) */
+ fpga = 0x4b; /* field check code */
+
+ pdata = fpgadata;
+ /* while no error write out each of the 28 byte frames */
+ while ((porta & (FPGA_INIT_L | FPGA_DONE)) == FPGA_INIT_L
+ && pdata < fpgadata + sizeof(fpgadata)) {
+
+ fpga = 0x4f; /* preamble code */
+
+ /* 21 bytes of data in a frame */
+ fpga = *(pdata++); fpga = *(pdata++);
+ fpga = *(pdata++); fpga = *(pdata++);
+ fpga = *(pdata++); fpga = *(pdata++);
+ fpga = *(pdata++); fpga = *(pdata++);
+ fpga = *(pdata++); fpga = *(pdata++);
+ fpga = *(pdata++); fpga = *(pdata++);
+ fpga = *(pdata++); fpga = *(pdata++);
+ fpga = *(pdata++); fpga = *(pdata++);
+ fpga = *(pdata++); fpga = *(pdata++);
+ fpga = *(pdata++); fpga = *(pdata++);
+ fpga = *(pdata++);
+
+ fpga = 0x4b; /* field check code */
+ fpga = 0xff; /* extended write cycle */
+ fpga = 0x4b; /* extended write cycle
+ * (actually 0x4b from bitgen.exe)
+ */
+ fpga = 0xff; /* extended write cycle */
+ fpga = 0xff; /* extended write cycle */
+ fpga = 0xff; /* extended write cycle */
+ }
+
+ fpga = 0xff; /* startup byte */
+ fpga = 0xff; /* startup byte */
+ fpga = 0xff; /* startup byte */
+ fpga = 0xff; /* startup byte */
+
+#if 0 /* ### FIXME */
+ /* If didn't load all the data or FPGA_DONE is low the load failed.
+ * Maybe someday stop here and flash the status LED? The console
+ * is not configured, so can't print an error message. Can't write
+ * global variables to set a flag (except gd?).
+ * For now it must work.
+ */
+#endif
+
+ /* Now that the FPGA is loaded, set up the Dual UART chip
+ * selects. Must be done here since it may be used as the console.
+ */
+ upmconfig(UPMB, (uint *)duart_table, sizeof(duart_table)/sizeof(uint));
+
+ memctl->memc_mbmr = DUART_MBMR;
+ memctl->memc_or5 = DUART_OR_VALUE;
+ memctl->memc_br5 = DUART_BR5_VALUE;
+ memctl->memc_or6 = DUART_OR_VALUE;
+ memctl->memc_br6 = DUART_BR6_VALUE;
+
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/* base address for SRAM, assume 32-bit port, valid */
+#define NVRAM_BR_VALUE (CFG_SRAM_BASE | BR_PS_32 | BR_V)
+
+/* up to 64MB - will be adjusted for actual size */
+#define NVRAM_OR_PRELIM (ORMASK(CFG_SRAM_SIZE) \
+ | OR_CSNT_SAM | OR_ACS_DIV4 | OR_BI | OR_SCY_5_CLK | OR_EHTR)
+/*
+ * Miscellaneous platform dependent initializations after running in RAM.
+ */
+
+int misc_init_r (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ bd_t *bd = gd->bd;
+
+ memctl->memc_or2 = NVRAM_OR_PRELIM;
+ memctl->memc_br2 = NVRAM_BR_VALUE;
+
+ /* Is there any SRAM? Is it 16 or 32 bits wide? */
+
+ /* First look for 32-bit SRAM */
+ bd->bi_sramsize = ram_size((ulong*)CFG_SRAM_BASE, CFG_SRAM_SIZE);
+
+ if (bd->bi_sramsize == 0) {
+ /* no 32-bit SRAM, but there could be 16-bit SRAM since
+ * it would report size 0 when configured for 32-bit bus.
+ * Try again with a 16-bit bus.
+ */
+ memctl->memc_br2 |= BR_PS_16;
+ bd->bi_sramsize = ram_size((ulong*)CFG_SRAM_BASE, CFG_SRAM_SIZE);
+ }
+
+ if (bd->bi_sramsize == 0) {
+ memctl->memc_br2 = 0; /* disable select since nothing there */
+ }
+ else {
+ /* adjust or2 for actual size of SRAM */
+ memctl->memc_or2 |= ORMASK(bd->bi_sramsize);
+ bd->bi_sramstart = CFG_SRAM_BASE;
+ printf("SRAM: %lu KB\n", bd->bi_sramsize >> 10);
+ }
+
+
+ /* set standard MPC8xx clock so kernel will see the time
+ * even if it doesn't have a DS1306 clock driver.
+ * This helps with experimenting with standard kernels.
+ */
+ {
+ ulong tim;
+ struct rtc_time tmp;
+
+ rtc_get(&tmp); /* get time from DS1306 RTC */
+
+ /* convert to seconds since 1970 */
+ tim = mktime(tmp.tm_year, tmp.tm_mon, tmp.tm_mday,
+ tmp.tm_hour, tmp.tm_min, tmp.tm_sec);
+
+ immap->im_sitk.sitk_rtck = KAPWR_KEY;
+ immap->im_sit.sit_rtc = tim;
+ }
+
+#if 0
+ /* The code below is no longer valid since the prototype of
+ * eth_init() and eth_halt() have been changed to support
+ * multi-ethernet feature in U-Boot; the eth_initialize()
+ * routine should be called before any access to the ethernet
+ * callbacks.
+ */
+
+ /* FIXME - for now init ethernet to force PHY special mode */
+ eth_init(bd);
+ eth_halt();
+#endif
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'.
+ *
+ * The memory size MUST be a power of 2 for this to work.
+ *
+ * The only memory modified is 4 bytes at offset 0. This is important
+ * since for the SRAM this location is reserved for autosizing, so if
+ * it is modified and the board is reset before ram_size() completes
+ * no damage is done. Normally even the memory at 0 is preserved. The
+ * higher SRAM addresses may contain battery backed RAM disk data which
+ * must never be corrupted.
+ */
+
+static long ram_size(ulong *base, long maxsize)
+{
+ volatile long *test_addr;
+ volatile long *base_addr = base;
+ volatile long *flash = (volatile long*)CFG_FLASH_BASE;
+ ulong ofs; /* byte offset from base_addr */
+ ulong save; /* to make test non-destructive */
+ ulong junk;
+ long ramsize = -1; /* size not determined yet */
+
+ save = *base_addr; /* save value at 0 so can restore */
+
+ /* is any SRAM present? */
+ *base_addr = 0x5555aaaa;
+
+ /* use flash read to modify data bus, since with no SRAM present
+ * the data bus may retain the value if our code is running
+ * completely in the cache.
+ */
+ junk = *flash;
+
+ if (*base_addr != 0x5555aaaa)
+ ramsize = 0; /* no RAM present, or defective */
+ else {
+ *base_addr = 0xaaaa5555;
+ junk = *flash; /* use flash read to modify data bus */
+ if (*base_addr != 0xaaaa5555)
+ ramsize = 0; /* no RAM present, or defective */
+ }
+
+ /* now size it if any is present */
+ for (ofs = 4; ofs < maxsize && ramsize < 0; ofs <<= 1) {
+ test_addr = (long*)((long)base_addr + ofs); /* location to test */
+
+ *base_addr = ~*test_addr;
+ if (*base_addr == *test_addr)
+ ramsize = ofs; /* wrapped back to 0, so this is the size */
+ }
+
+ *base_addr = save; /* restore value at 0 */
+ return (ramsize);
+}
+
+/* ------------------------------------------------------------------------- */
+/* sdram table based on the FADS manual */
+/* for chip MB811171622A-100 */
+
+/* this table is for 50MHz operation, it should work at all lower speeds */
+
+const uint sdram_table[] =
+{
+ /* single read. (offset 0 in upm RAM) */
+ 0x1f07fc04, 0xeeaefc04, 0x11adfc04, 0xefbbbc00,
+ 0x1ff77c47,
+
+ /* precharge and Mode Register Set initialization (offset 5).
+ * This is also entered at offset 6 to do Mode Register Set
+ * without the precharge.
+ */
+ 0x1ff77c34, 0xefeabc34, 0x1fb57c35,
+
+ /* burst read. (offset 8 in upm RAM) */
+ 0x1f07fc04, 0xeeaefc04, 0x10adfc04, 0xf0affc00,
+ 0xf0affc00, 0xf1affc00, 0xefbbbc00, 0x1ff77c47,
+ _not_used_, _not_used_, _not_used_, _not_used_,
+ _not_used_, _not_used_, _not_used_, _not_used_,
+
+ /* single write. (offset 18 in upm RAM) */
+ /* FADS had 0x1f27fc04, ...
+ * but most other boards have 0x1f07fc04, which
+ * sets GPL0 from A11MPC to 0 1/4 clock earlier,
+ * like the single read.
+ * This seems better so I am going with the change.
+ */
+ 0x1f07fc04, 0xeeaebc00, 0x01b93c04, 0x1ff77c47,
+ _not_used_, _not_used_, _not_used_, _not_used_,
+
+ /* burst write. (offset 20 in upm RAM) */
+ 0x1f07fc04, 0xeeaebc00, 0x10ad7c00, 0xf0affc00,
+ 0xf0affc00, 0xe1bbbc04, 0x1ff77c47, _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, _not_used_, _not_used_,
+ _not_used_, _not_used_, _not_used_, _not_used_,
+
+ /* exception. (offset 3c in upm RAM) */
+ 0x7ffffc07, _not_used_, _not_used_, _not_used_ };
+
+/* ------------------------------------------------------------------------- */
+
+#define SDRAM_MAX_SIZE 0x10000000 /* max 256 MB SDRAM */
+
+/* precharge and set Mode Register */
+#define SDRAM_MCR_PRE (MCR_OP_RUN | MCR_UPM_A | /* select UPM */ \
+ MCR_MB_CS3 | /* chip select */ \
+ MCR_MLCF(1) | MCR_MAD(5)) /* 1 time at 0x05 */
+
+/* set Mode Register, no precharge */
+#define SDRAM_MCR_MRS (MCR_OP_RUN | MCR_UPM_A | /* select UPM */ \
+ MCR_MB_CS3 | /* chip select */ \
+ MCR_MLCF(1) | MCR_MAD(6)) /* 1 time at 0x06 */
+
+/* runs refresh loop twice so get 8 refresh cycles */
+#define SDRAM_MCR_REFR (MCR_OP_RUN | MCR_UPM_A | /* select UPM */ \
+ MCR_MB_CS3 | /* chip select */ \
+ MCR_MLCF(2) | MCR_MAD(0x30)) /* twice at 0x30 */
+
+/* MAMR values work in either mamr or mbmr */
+/* 8 column SDRAM */
+#define SDRAM_MAMR_8COL /* refresh at 50MHz */ \
+ ((195 << MAMR_PTA_SHIFT) | MAMR_PTAE \
+ | MAMR_AMA_TYPE_0 /* Address MUX 0 */ \
+ | MAMR_DSA_1_CYCL /* 1 cycle disable */ \
+ | MAMR_G0CLA_A11 /* GPL0 A11[MPC] */ \
+ | MAMR_RLFA_1X /* Read loop 1 time */ \
+ | MAMR_WLFA_1X /* Write loop 1 time */ \
+ | MAMR_TLFA_4X) /* Timer loop 4 times */
+
+/* 9 column SDRAM */
+#define SDRAM_MAMR_9COL ((SDRAM_MAMR_8COL & (~MAMR_G0CLA_A11)) | MAMR_G0CLA_A10)
+
+/* base address 0, 32-bit port, SDRAM UPM, valid */
+#define SDRAM_BR_VALUE (BR_PS_32 | BR_MS_UPMA | BR_V)
+
+/* up to 256MB, SAM, G5LS - will be adjusted for actual size */
+#define SDRAM_OR_PRELIM (ORMASK(SDRAM_MAX_SIZE) | OR_CSNT_SAM | OR_G5LS)
+
+/* This is the Mode Select Register value for the SDRAM.
+ * Burst length: 4
+ * Burst Type: sequential
+ * CAS Latency: 2
+ * Write Burst Length: burst
+ */
+#define SDRAM_MODE 0x22 /* CAS latency 2, burst length 4 */
+
+/* ------------------------------------------------------------------------- */
+
+long int initdram(int board_type)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ uint size_sdram = 0;
+ uint size_sdram9 = 0;
+ uint base = 0; /* SDRAM must start at 0 */
+ int i;
+
+ upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+
+ /* Configure the refresh (mostly). This needs to be
+ * based upon processor clock speed and optimized to provide
+ * the highest level of performance.
+ *
+ * Preliminary prescaler for refresh.
+ * This value is selected for four cycles in 31.2 us,
+ * which gives 8192 cycles in 64 milliseconds.
+ * This may be too fast, but works for any memory.
+ * It is adjusted to 4096 cycles in 64 milliseconds if
+ * possible once we know what memory we have.
+ *
+ * We have to be careful changing UPM registers after we
+ * ask it to run these commands.
+ *
+ * PTA - periodic timer period for our design is
+ * 50 MHz x 31.2us
+ * --------------- = 195
+ * 1 x 8 x 1
+ *
+ * 50MHz clock
+ * 31.2us refresh interval
+ * SCCR[DFBRG] 0
+ * PTP divide by 8
+ * 1 chip select
+ */
+ memctl->memc_mptpr = MPTPR_PTP_DIV8; /* 0x0800 */
+ memctl->memc_mamr = SDRAM_MAMR_8COL & (~MAMR_PTAE); /* no refresh yet */
+
+ /* The SDRAM Mode Register value is shifted left 2 bits since
+ * A30 and A31 don't connect to the SDRAM for 32-bit wide memory.
+ */
+ memctl->memc_mar = SDRAM_MODE << 2; /* MRS code */
+ udelay(200); /* SDRAM needs 200uS before set it up */
+
+ /* Now run the precharge/nop/mrs commands. */
+ memctl->memc_mcr = SDRAM_MCR_PRE;
+ udelay(2);
+
+ /* Run 8 refresh cycles (2 sets of 4) */
+ memctl->memc_mcr = SDRAM_MCR_REFR; /* run refresh twice */
+ udelay(2);
+
+ /* some brands want Mode Register set after the refresh
+ * cycles. This shouldn't hurt anything for the brands
+ * that were happy with the first time we set it.
+ */
+ memctl->memc_mcr = SDRAM_MCR_MRS;
+ udelay(2);
+
+ memctl->memc_mamr = SDRAM_MAMR_8COL; /* enable refresh */
+ memctl->memc_or3 = SDRAM_OR_PRELIM;
+ memctl->memc_br3 = SDRAM_BR_VALUE + base;
+
+ /* Some brands need at least 10 DRAM accesses to stabilize.
+ * It wont hurt the brands that don't.
+ */
+ for (i=0; i<10; ++i) {
+ volatile ulong *addr = (volatile ulong *)base;
+ ulong val;
+
+ val = *(addr + i);
+ *(addr + i) = val;
+ }
+
+ /* Check SDRAM memory Size in 8 column mode.
+ * For a 9 column memory we will get half the actual size.
+ */
+ size_sdram = ram_size((ulong *)0, SDRAM_MAX_SIZE);
+
+ /* Check SDRAM memory Size in 9 column mode.
+ * For an 8 column memory we will see at most 4 megabytes.
+ */
+ memctl->memc_mamr = SDRAM_MAMR_9COL;
+ size_sdram9 = ram_size((ulong *)0, SDRAM_MAX_SIZE);
+
+ if (size_sdram < size_sdram9) /* leave configuration at 9 columns */
+ size_sdram = size_sdram9;
+ else /* go back to 8 columns */
+ memctl->memc_mamr = SDRAM_MAMR_8COL;
+
+ /* adjust or3 for actual size of SDRAM
+ */
+ memctl->memc_or3 |= ORMASK(size_sdram);
+
+ /* Adjust refresh rate depending on SDRAM type.
+ * For types > 128 MBit (32 Mbyte for 2 x16 devices) leave
+ * it at the current (fast) rate.
+ * For 16, 64 and 128 MBit half the rate will do.
+ */
+ if (size_sdram <= 32 * 1024 * 1024)
+ memctl->memc_mptpr = MPTPR_PTP_DIV16; /* 0x0400 */
+
+ return (size_sdram);
+}
+