* Patch by Josef Wagner, 12 Mar 2003:

  - 16/32 MB and 50/80 MHz support with auto-detection for IP860
  - ETH05 and BEDBUG support for CU824
  - added support for MicroSys CPC45
  - new BOOTROM/FLASH0 and DOC base for PM826

* Patch by Robert Schwebel, 12 Mar 2003:
  Fix the chpart command on innokom board

* Name cleanup:
  mv include/asm-i386/ppcboot-i386.h include/asm-i386/u-boot-i386.h
  s/PPCBoot/U-Boot/ in some files
  s/pImage/uImage/  in some files

* Patch by Detlev Zundel, 15 Jan 2003:
  Fix '' command line quoting

* Patch by The LEOX team, 19 Jan 2003:
  - add support for the ELPT860 board
  - add support for Dallas ds164x RTC

1 files changed, 399 insertions, 0 deletions

diff --git a/board/LEOX/elpt860/elpt860.c b/board/LEOX/elpt860/elpt860.c
new file mode 100644
index 0000000..2564546
--- /dev/null
+++ b/board/LEOX/elpt860/elpt860.c
@@ -0,0 +1,399 @@
+/*
+**=====================================================================
+**
+** Copyright (C) 2000, 2001, 2002, 2003
+** The LEOX team <team@leox.org>, http://www.leox.org
+**
+** LEOX.org is about the development of free hardware and software resources
+**   for system on chip.
+**
+** Description: U-Boot port on the LEOX's ELPT860 CPU board
+** ~~~~~~~~~~~
+**
+**=====================================================================
+**
+** 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
+**
+**=====================================================================
+*/
+
+/*
+** Note 1: In this file, you have to provide the following functions:
+** ------
+**              int             board_pre_init(void)
+**              int             checkboard(void)
+**              long int        initdram(int board_type)
+** called from 'board_init_f()' into 'common/board.c'
+**
+**              void            reset_phy(void)
+** called from 'board_init_r()' into 'common/board.c'
+*/
+
+#include <common.h>
+#include <mpc8xx.h>
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+
+/* ------------------------------------------------------------------------- */
+
+#define	_NOT_USED_	0xFFFFFFFF
+
+const uint init_sdram_table[] =
+{
+  /*
+   * Single Read. (Offset 0 in UPMA RAM)
+   */
+  0x0FFCCC04, 0xFFFFFC04, 0x0FFC3C04, 0xFFFFFC04,
+  0xFFFFFC04, /* 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.
+   *
+   */
+  0xFFFFFC04, 0xFFFFFC04, 0x0FFC3C04,  /* last */
+  /*
+   * Burst Read. (Offset 8 in UPMA RAM)
+   */
+  0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
+  0x0FFC3C04, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
+  0xFFFFFC04, 0x0FFC3C04, 0xFFFFFC04, 0xFFFFFC04,
+  0xFFFFFC04, 0xFFFFFC04, 0x0FFC3C04, 0xFFFFFC04, /* last */
+  /*
+   * Single Write. (Offset 18 in UPMA RAM)
+   */
+  0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04, 0x0FFC3C04,
+  0xFFFFFC04, 0xFFFFFC04, 0x0FFFFC04, 0xFFFFFC04, /* last */
+  /*
+   * Burst Write. (Offset 20 in UPMA RAM)
+   */
+  0x0FFC3C04, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
+  0xFFFFFC04, 0x0FFC3C04, 0xFFFFFC04, 0xFFFFFC04,
+  0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC34, 0x0FAC0C34,
+  0xFFFFFC05, 0xFFFFFC04, 0x0FFCFC04, 0xFFFFFC05, /* last */
+};
+
+const uint sdram_table[] =
+{
+  /*
+   * Single Read. (Offset 0 in UPMA RAM)
+   */
+  0x0F0FFC24, 0x0F0CFC04, 0xFF0FFC04, 0x00AF3C04, 
+  0xFF0FFC00, /* 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.
+   *
+   */
+  0x0FFCCC04, 0xFFAFFC05, 0xFFAFFC05, /* last */
+  /*
+   * Burst Read. (Offset 8 in UPMA RAM)
+   */
+  0x0F0FFC24, 0x0F0CFC04, 0xFF0FFC04, 0x00AF3C04, 
+  0xF00FFC00, 0xF00FFC00, 0xF00FFC00, 0xFF0FFC00,
+  0x0FFCCC04, 0xFFAFFC05, 0xFFAFFC04, 0xFFAFFC04, 
+  0xFFAFFC04, 0xFFAFFC04, 0xFFAFFC04, 0xFFAFFC04, /* last */
+  /*
+   * Single Write. (Offset 18 in UPMA RAM)
+   */
+  0x0F0FFC24, 0x0F0CFC04, 0xFF0FFC04, 0x00AF0C00, 
+  0xFF0FFC04, 0x0FFCCC04, 0xFFAFFC05, /* last */
+  _NOT_USED_, 
+  /*
+   * Burst Write. (Offset 20 in UPMA RAM)
+   */
+  0x0F0FFC24, 0x0F0CFC04, 0xFF0FFC00, 0x00AF0C00, 
+  0xF00FFC00, 0xF00FFC00, 0xF00FFC04, 0x0FFCCC04, 
+  0xFFAFFC04, 0xFFAFFC05, 0xFFAFFC04, 0xFFAFFC04, 
+  0xFFAFFC04, 0xFFAFFC04, 0xFFAFFC04, 0xFFAFFC04, /* last */
+  /*
+   * Refresh  (Offset 30 in UPMA RAM)
+   */
+  0x0FFC3C04, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04, 
+  0xFFFFFC05, 0xFFFFFC04, 0xFFFFFC05, _NOT_USED_, 
+  0xFFAFFC04, 0xFFAFFC04, 0xFFAFFC04, 0xFFAFFC04, /* last */
+  /*
+   * Exception. (Offset 3c in UPMA RAM)
+   */
+  0x0FFFFC34, 0x0FAC0C34, 0xFFFFFC05, 0xFFAFFC04, /* last */
+};
+
+/* ------------------------------------------------------------------------- */
+
+#define CFG_PC4    0x0800
+
+#define CFG_DS1    CFG_PC4
+
+/*
+ * Very early board init code (fpga boot, etc.)
+ */
+int
+board_pre_init (void)
+{
+  volatile immap_t *immr = (immap_t *) CFG_IMMR;
+
+  /* 
+   * Light up the red led on ELPT860 pcb (DS1) (PCDAT) 
+   */
+  immr->im_ioport.iop_pcdat &= ~CFG_DS1;   /* PCDAT (DS1 = 0)                */
+  immr->im_ioport.iop_pcpar &= ~CFG_DS1;   /* PCPAR (0=general purpose I/O)  */
+  immr->im_ioport.iop_pcdir |=  CFG_DS1;   /* PCDIR (I/O: 0=input, 1=output) */
+
+  return ( 0 );    /* success */
+}
+
+/*
+ * Check Board Identity:
+ *
+ * Test ELPT860 ID string
+ *
+ * Return 1 if no second DRAM bank, otherwise returns 0
+ */
+
+int 
+checkboard (void)
+{
+    unsigned char *s = getenv("serial#");
+
+    if ( !s || strncmp(s, "ELPT860", 7) )
+      printf ("### No HW ID - assuming ELPT860\n");
+    
+    return ( 0 );    /* success */
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int 
+initdram (int board_type)
+{
+    volatile immap_t     *immap  = (immap_t *)CFG_IMMR;
+    volatile memctl8xx_t *memctl = &immap->im_memctl;
+    long int              size8, size9;
+    long int              size_b0 = 0;
+
+    /*
+     * This sequence initializes SDRAM chips on ELPT860 board
+     */
+    upmconfig(UPMA, (uint *)init_sdram_table, 
+	      sizeof(init_sdram_table)/sizeof(uint));
+
+    memctl->memc_mptpr = 0x0200;
+    memctl->memc_mamr  = 0x18002111;
+
+    memctl->memc_mar   = 0x00000088;
+    memctl->memc_mcr   = 0x80002000;	/* CS1: SDRAM bank 0 */
+
+    upmconfig(UPMA, (uint *)sdram_table, 
+	      sizeof(sdram_table)/sizeof(uint));
+
+    /*
+     * 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_8K;
+
+    /*
+     * The following value is used as an address (i.e. opcode) for
+     * the LOAD MODE REGISTER COMMAND during SDRAM initialisation. If
+     * the port size is 32bit the SDRAM does NOT "see" the lower two
+     * address lines, i.e. mar=0x00000088 -> opcode=0x00000022 for
+     * MICRON SDRAMs:
+     * ->    0 00 010 0 010
+     *       |  |   | |   +- Burst Length = 4
+     *       |  |   | +----- Burst Type   = Sequential
+     *       |  |   +------- CAS Latency  = 2
+     *       |  +----------- Operating Mode = Standard
+     *       +-------------- Write Burst Mode = Programmed Burst Length
+     */
+    memctl->memc_mar   = 0x00000088;
+
+    /*
+     * Map controller banks 2 and 3 to the SDRAM banks 2 and 3 at
+     * preliminary addresses - these have to be modified after the
+     * SDRAM size has been determined.
+     */
+    memctl->memc_or1   = CFG_OR1_PRELIM;
+    memctl->memc_br1   = CFG_BR1_PRELIM;
+
+    memctl->memc_mamr  = CFG_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */
+
+    udelay (200);
+
+    /* perform SDRAM initializsation sequence */
+
+    memctl->memc_mcr   = 0x80002105;	/* CS1: SDRAM bank 0 */
+    udelay (1);
+    memctl->memc_mcr   = 0x80002230;	/* CS1: SDRAM bank 0 - execute twice */
+    udelay (1);
+
+    memctl->memc_mamr |= MAMR_PTAE;	/* enable refresh */
+
+    udelay (1000);
+
+    /*
+     * Check Bank 0 Memory Size for re-configuration
+     *
+     * try 8 column mode
+     */
+    size8 = dram_size (CFG_MAMR_8COL, 
+		       (ulong *) SDRAM_BASE1_PRELIM, 
+		       SDRAM_MAX_SIZE);
+
+    udelay (1000);
+
+    /*
+     * try 9 column mode
+     */
+    size9 = dram_size (CFG_MAMR_9COL, 
+		       (ulong *) SDRAM_BASE1_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);
+      }
+
+    /*
+     * Final mapping: map bigger bank first
+     */
+    memctl->memc_or1 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+    memctl->memc_br1 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
+
+    {
+      unsigned long reg;
+      
+      /* adjust refresh rate depending on SDRAM type, one bank */
+      reg = memctl->memc_mptpr;
+      reg >>= 1;	/* reduce to CFG_MPTPR_1BK_8K / _4K */
+      memctl->memc_mptpr = reg;
+    }
+
+    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;
+  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);
+}
+
+/* ------------------------------------------------------------------------- */
+
+#define CFG_PA1     0x4000
+#define CFG_PA2     0x2000
+
+#define CFG_LBKs    (CFG_PA2 | CFG_PA1)
+
+void
+reset_phy (void)
+{
+  volatile immap_t *immr = (immap_t *) CFG_IMMR;
+  
+  /*
+   * Ensure LBK LXT901 ethernet 1 & 2 = 0 ... for normal loopback in effect
+   *                                          and no AUI loopback
+   */
+  immr->im_ioport.iop_padat &= ~CFG_LBKs;  /* PADAT (LBK eth 1&2 = 0)        */
+  immr->im_ioport.iop_papar &= ~CFG_LBKs;  /* PAPAR (0=general purpose I/O)  */
+  immr->im_ioport.iop_padir |=  CFG_LBKs;  /* PADIR (I/O: 0=input, 1=output) */
+}