Add support for Silicon Turnkey eXpress XTc (mpc87x/88x) board.

Patch by Dan Malek and Pantelis Antoniou, 15 Aug 2005

1 files changed, 638 insertions, 0 deletions

diff --git a/board/stxxtc/stxxtc.c b/board/stxxtc/stxxtc.c
new file mode 100644
index 0000000..b38b4be
--- /dev/null
+++ b/board/stxxtc/stxxtc.c
@@ -0,0 +1,638 @@
+/*
+ * (C) Copyright 2000-2004
+ * Pantelis Antoniou, Intracom S.A., panto@intracom.gr
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * (C) Copyright 2005
+ * Dan Malek, Embedded Edge, LLC, dan@embeddededge.com
+ *
+ * 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
+ */
+
+/*
+ * U-Boot port on STx XTc board
+ * Mostly copied from Netta
+ */
+
+#include <common.h>
+#include <miiphy.h>
+
+#include "mpc8xx.h"
+
+#ifdef CONFIG_HW_WATCHDOG
+#include <watchdog.h>
+#endif
+
+/****************************************************************/
+
+/* some sane bit macros */
+#define _BD(_b)				(1U << (31-(_b)))
+#define _BDR(_l, _h)			(((((1U << (31-(_l))) - 1) << 1) | 1) & ~((1U << (31-(_h))) - 1))
+
+#define _BW(_b)				(1U << (15-(_b)))
+#define _BWR(_l, _h)			(((((1U << (15-(_l))) - 1) << 1) | 1) & ~((1U << (15-(_h))) - 1))
+
+#define _BB(_b)				(1U << (7-(_b)))
+#define _BBR(_l, _h)			(((((1U << (7-(_l))) - 1) << 1) | 1) & ~((1U << (7-(_h))) - 1))
+
+#define _B(_b)				_BD(_b)
+#define _BR(_l, _h)			_BDR(_l, _h)
+
+/****************************************************************/
+
+/*
+ * Check Board Identity:
+ *
+ * Return 1 always.
+ */
+
+int checkboard(void)
+{
+	printf ("Silicon Turnkey eXpress XTc\n");
+	return (0);
+}
+
+/****************************************************************/
+
+#define _NOT_USED_	0xFFFFFFFF
+
+/****************************************************************/
+
+#define CS_0000		0x00000000
+#define CS_0001		0x10000000
+#define CS_0010		0x20000000
+#define CS_0011		0x30000000
+#define CS_0100		0x40000000
+#define CS_0101		0x50000000
+#define CS_0110		0x60000000
+#define CS_0111		0x70000000
+#define CS_1000		0x80000000
+#define CS_1001		0x90000000
+#define CS_1010		0xA0000000
+#define CS_1011		0xB0000000
+#define CS_1100		0xC0000000
+#define CS_1101		0xD0000000
+#define CS_1110		0xE0000000
+#define CS_1111		0xF0000000
+
+#define BS_0000		0x00000000
+#define BS_0001		0x01000000
+#define BS_0010		0x02000000
+#define BS_0011		0x03000000
+#define BS_0100		0x04000000
+#define BS_0101		0x05000000
+#define BS_0110		0x06000000
+#define BS_0111		0x07000000
+#define BS_1000		0x08000000
+#define BS_1001		0x09000000
+#define BS_1010		0x0A000000
+#define BS_1011		0x0B000000
+#define BS_1100		0x0C000000
+#define BS_1101		0x0D000000
+#define BS_1110		0x0E000000
+#define BS_1111		0x0F000000
+
+#define GPL0_AAAA	0x00000000
+#define GPL0_AAA0	0x00200000
+#define GPL0_AAA1	0x00300000
+#define GPL0_000A	0x00800000
+#define GPL0_0000	0x00A00000
+#define GPL0_0001	0x00B00000
+#define GPL0_111A	0x00C00000
+#define GPL0_1110	0x00E00000
+#define GPL0_1111	0x00F00000
+
+#define GPL1_0000	0x00000000
+#define GPL1_0001	0x00040000
+#define GPL1_1110	0x00080000
+#define GPL1_1111	0x000C0000
+
+#define GPL2_0000	0x00000000
+#define GPL2_0001	0x00010000
+#define GPL2_1110	0x00020000
+#define GPL2_1111	0x00030000
+
+#define GPL3_0000	0x00000000
+#define GPL3_0001	0x00004000
+#define GPL3_1110	0x00008000
+#define GPL3_1111	0x0000C000
+
+#define GPL4_0000	0x00000000
+#define GPL4_0001	0x00001000
+#define GPL4_1110	0x00002000
+#define GPL4_1111	0x00003000
+
+#define GPL5_0000	0x00000000
+#define GPL5_0001	0x00000400
+#define GPL5_1110	0x00000800
+#define GPL5_1111	0x00000C00
+#define LOOP		0x00000080
+
+#define EXEN		0x00000040
+
+#define AMX_COL		0x00000000
+#define AMX_ROW		0x00000020
+#define AMX_MAR		0x00000030
+
+#define NA		0x00000008
+
+#define UTA		0x00000004
+
+#define TODT		0x00000002
+
+#define LAST		0x00000001
+
+#define A10_AAAA	GPL0_AAAA
+#define A10_AAA0	GPL0_AAA0
+#define A10_AAA1	GPL0_AAA1
+#define A10_000A	GPL0_000A
+#define A10_0000	GPL0_0000
+#define A10_0001	GPL0_0001
+#define A10_111A	GPL0_111A
+#define A10_1110	GPL0_1110
+#define A10_1111	GPL0_1111
+
+#define RAS_0000	GPL1_0000
+#define RAS_0001	GPL1_0001
+#define RAS_1110	GPL1_1110
+#define RAS_1111	GPL1_1111
+
+#define CAS_0000	GPL2_0000
+#define CAS_0001	GPL2_0001
+#define CAS_1110	GPL2_1110
+#define CAS_1111	GPL2_1111
+
+#define WE_0000		GPL3_0000
+#define WE_0001		GPL3_0001
+#define WE_1110		GPL3_1110
+#define WE_1111		GPL3_1111
+
+/* #define CAS_LATENCY	3  */
+#define CAS_LATENCY	2
+
+const uint sdram_table[0x40] = {
+
+#if CAS_LATENCY == 3
+	/* RSS */
+	CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* ACT   */
+	CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
+	CS_0000 | BS_1111 | A10_0001 | RAS_1111 | CAS_0001 | WE_1111 | AMX_COL | UTA,			/* READ  */
+	CS_0001 | BS_0001 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA,			/* PALL  */
+	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
+	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA | TODT | LAST,	/* NOP   */
+	_NOT_USED_, _NOT_USED_,
+
+	/* RBS */
+	CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* ACT   */
+	CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
+	CS_0001 | BS_1111 | A10_0001 | RAS_1111 | CAS_0001 | WE_1111 | AMX_COL | UTA,			/* READ  */
+	CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
+	CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP	 */
+	CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP	 */
+	CS_0001 | BS_0001 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL,				/* PALL  */
+	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | TODT | LAST,		/* NOP	 */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+	/* WSS */
+	CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* ACT   */
+	CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP	 */
+	CS_0000 | BS_0001 | A10_0000 | RAS_1111 | CAS_0001 | WE_0000 | AMX_COL | UTA,			/* WRITE */
+	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA,			/* PALL  */
+	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA | TODT | LAST,	/* NOP   */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+	/* WBS */
+	CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* ACT   */
+	CS_1111 | BS_1111 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
+	CS_0001 | BS_0000 | A10_0000 | RAS_1111 | CAS_0001 | WE_0000 | AMX_COL,				/* WRITE */
+	CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
+	CS_1111 | BS_0000 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
+	CS_1111 | BS_0001 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
+	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
+	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA,			/* PALL  */
+	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA | TODT | LAST,	/* NOP   */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_,
+#endif
+
+#if CAS_LATENCY == 2
+	/* RSS */
+	CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* ACT   */
+	CS_1110 | BS_1110 | A10_0000 | RAS_1111 | CAS_1110 | WE_1111 | AMX_COL | UTA,			/* NOP   */
+	CS_0001 | BS_0001 | A10_0000 | RAS_1111 | CAS_0001 | WE_1111 | AMX_COL | UTA,			/* READ  */
+	CS_1110 | BS_1111 | A10_0001 | RAS_1110 | CAS_1111 | WE_1110 | AMX_COL,				/* NOP   */
+	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA | TODT | LAST,	/* PALL  */
+	_NOT_USED_,
+	_NOT_USED_, _NOT_USED_,
+
+	/* RBS */
+	CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* ACT   */
+	CS_1110 | BS_1110 | A10_0000 | RAS_1111 | CAS_1110 | WE_1111 | AMX_COL | UTA,			/* NOP   */
+	CS_0001 | BS_0000 | A10_0000 | RAS_1111 | CAS_0001 | WE_1111 | AMX_COL | UTA,			/* READ  */
+	CS_1111 | BS_0000 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
+	CS_1111 | BS_0000 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
+	CS_1111 | BS_0001 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
+	CS_1110 | BS_1111 | A10_0001 | RAS_1110 | CAS_1111 | WE_1110 | AMX_COL,				/* NOP   */
+	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA | TODT | LAST,	/* PALL  */
+	_NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+	/* WSS */
+	CS_0001 | BS_1111 | A10_AAA0 | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* ACT   */
+	CS_1110 | BS_1110 | A10_0000 | RAS_1111 | CAS_1110 | WE_1110 | AMX_COL,				/* NOP   */
+	CS_0000 | BS_0001 | A10_0001 | RAS_1110 | CAS_0001 | WE_0000 | AMX_COL | UTA,			/* WRITE */
+	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA | TODT | LAST,	/* PALL  */
+	_NOT_USED_,
+	_NOT_USED_, _NOT_USED_,
+	_NOT_USED_,
+
+	/* WBS */
+	CS_0001 | BS_1111 | A10_AAAA | RAS_0001 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* ACT   */
+	CS_1110 | BS_1110 | A10_0000 | RAS_1111 | CAS_1110 | WE_1110 | AMX_COL,				/* NOP   */
+	CS_0001 | BS_0000 | A10_0000 | RAS_1111 | CAS_0001 | WE_0001 | AMX_COL,				/* WRITE */
+	CS_1111 | BS_0000 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
+	CS_1111 | BS_0000 | A10_0000 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL,				/* NOP   */
+	CS_1110 | BS_0001 | A10_0001 | RAS_1110 | CAS_1111 | WE_1110 | AMX_COL | UTA,			/* NOP   */
+	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA | TODT | LAST,	/* PALL  */
+	_NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_,
+
+#endif
+
+	/* UPT */
+	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_0001 | WE_1111 | AMX_COL | UTA | LOOP,		/* ATRFR */
+	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
+	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
+	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA,			/* NOP   */
+	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA | LOOP,		/* NOP   */
+	CS_1111 | BS_1111 | A10_1111 | RAS_1111 | CAS_1111 | WE_1111 | AMX_COL | UTA | TODT | LAST,	/* NOP   */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_,
+
+	/* EXC */
+	CS_0001 | BS_1111 | A10_1111 | RAS_0001 | CAS_1111 | WE_0001 | AMX_COL | UTA | LAST,
+	_NOT_USED_,
+
+	/* REG */
+	CS_1110 | BS_1111 | A10_1110 | RAS_1110 | CAS_1110 | WE_1110 | AMX_MAR | UTA,
+	CS_0001 | BS_1111 | A10_0001 | RAS_0001 | CAS_0001 | WE_0001 | AMX_MAR | UTA | LAST,
+};
+
+static const uint nandcs_table[0x40] = {
+	/* RSS */
+	CS_1000 | GPL4_1111 | GPL5_1111 | UTA,
+	CS_0000 | GPL4_1110 | GPL5_1111 | UTA,
+	CS_0000 | GPL4_0000 | GPL5_1111 | UTA,
+	CS_0000 | GPL4_0000 | GPL5_1111 | UTA,
+	CS_0000 | GPL4_0000 | GPL5_1111,
+	CS_0000 | GPL4_0001 | GPL5_1111 | UTA,
+	CS_0000 | GPL4_1111 | GPL5_1111 | UTA,
+	CS_0011 | GPL4_1111 | GPL5_1111 | UTA | LAST,	/* NOP   */
+
+	/* RBS */
+	_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_,
+
+	/* WSS */
+	CS_1000 | GPL4_1111 | GPL5_1110 | UTA,
+	CS_0000 | GPL4_1111 | GPL5_0000 | UTA,
+	CS_0000 | GPL4_1111 | GPL5_0000 | UTA,
+	CS_0000 | GPL4_1111 | GPL5_0000 | UTA,
+	CS_0000 | GPL4_1111 | GPL5_0001 | UTA,
+	CS_0000 | GPL4_1111 | GPL5_1111 | UTA,
+	CS_0000 | GPL4_1111 | GPL5_1111,
+	CS_0011 | GPL4_1111 | GPL5_1111 | UTA | LAST,
+
+	/* WBS */
+	_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_,
+
+	/* UPT */
+	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_,	_NOT_USED_, _NOT_USED_,
+	_NOT_USED_, _NOT_USED_,	_NOT_USED_, _NOT_USED_,
+
+	/* EXC */
+	CS_0001 | LAST,
+	_NOT_USED_,
+
+	/* REG */
+	CS_1110 ,
+	CS_0001 | LAST,
+};
+
+/* 0xC8 = 0b11001000 , CAS3, >> 2 = 0b00 11 0 010 */
+/* 0x88 = 0b10001000 , CAS2, >> 2 = 0b00 10 0 010 */
+#define MAR_SDRAM_INIT		((CAS_LATENCY << 6) | 0x00000008LU)
+
+/* 9 */
+#define CFG_MAMR	((CFG_MAMR_PTA << MAMR_PTA_SHIFT)  | MAMR_PTAE	    |	\
+			 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 |	\
+			 MAMR_RLFA_1X	 | MAMR_WLFA_1X	   | MAMR_TLFA_4X)
+
+void check_ram(unsigned int addr, unsigned int size)
+{
+	unsigned int i, j, v, vv;
+	volatile unsigned int *p;
+	unsigned int pv;
+
+	p = (unsigned int *)addr;
+	pv = (unsigned int)p;
+	for (i = 0; i < size / sizeof(unsigned int); i++, pv += sizeof(unsigned int))
+		*p++ = pv;
+
+	p = (unsigned int *)addr;
+	for (i = 0; i < size / sizeof(unsigned int); i++) {
+		v = (unsigned int)p;
+		vv = *p;
+		if (vv != v) {
+			printf("%p: read %08x instead of %08x\n", p, vv, v);
+			hang();
+		}
+		p++;
+	}
+
+	for (j = 0; j < 5; j++) {
+		switch (j) {
+			case 0: v = 0x00000000; break;
+			case 1: v = 0xffffffff; break;
+			case 2: v = 0x55555555; break;
+			case 3: v = 0xaaaaaaaa; break;
+			default:v = 0xdeadbeef; break;
+		}
+		p = (unsigned int *)addr;
+		for (i = 0; i < size / sizeof(unsigned int); i++) {
+			*p = v;
+			vv = *p;
+			if (vv != v) {
+				printf("%p: read %08x instead of %08x\n", p, vv, v);
+				hang();
+			}
+			*p = ~v;
+			p++;
+		}
+	}
+}
+
+#define DO_LOOP do { for (;;) asm volatile ("nop" : : : "memory"); } while(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;
+	u32 d1, d2;
+
+	upmconfig(UPMA, (uint *) sdram_table, sizeof(sdram_table) / sizeof(sdram_table[0]));
+
+	/*
+	 * Preliminary prescaler for refresh
+	 */
+	memctl->memc_mptpr = MPTPR_PTP_DIV8;
+
+	memctl->memc_mar = MAR_SDRAM_INIT;	/* 32-bit address to be output on the address bus if AMX = 0b11 */
+
+	/*
+	 * Map controller bank 3 to the SDRAM bank at preliminary address.
+	 */
+	memctl->memc_or4 = CFG_OR4_PRELIM;
+	memctl->memc_br4 = CFG_BR4_PRELIM;
+
+	memctl->memc_mamr = CFG_MAMR & ~MAMR_PTAE;	/* no refresh yet */
+
+	udelay(200);
+
+	/* perform SDRAM initialisation sequence */
+	memctl->memc_mcr = MCR_OP_RUN | MCR_UPM_A | MCR_MB_CS4 | MCR_MLCF(1) | MCR_MAD(0x3C);	/* precharge all		*/
+	udelay(1);
+
+	memctl->memc_mcr = MCR_OP_RUN | MCR_UPM_A | MCR_MB_CS4 | MCR_MLCF(2) | MCR_MAD(0x30);	/* refresh 2 times(0)		*/
+	udelay(1);
+
+	memctl->memc_mcr = MCR_OP_RUN | MCR_UPM_A | MCR_MB_CS4 | MCR_MLCF(1) | MCR_MAD(0x3E);	/* exception program (write mar)*/
+	udelay(1);
+
+	memctl->memc_mamr |= MAMR_PTAE;	/* enable refresh */
+
+	udelay(10000);
+
+
+	d1 = 0xAA55AA55;
+	*(volatile u32 *)0 = d1;
+	d2 = *(volatile u32 *)0;
+	if (d1 != d2) {
+		printf("DRAM fails: wrote 0x%08x read 0x%08x\n", d1, d2);
+		DO_LOOP;
+	}
+
+	d1 = 0x55AA55AA;
+	*(volatile u32 *)0 = d1;
+	d2 = *(volatile u32 *)0;
+	if (d1 != d2) {
+		printf("DRAM fails: wrote 0x%08x read 0x%08x\n", d1, d2);
+		DO_LOOP;
+	}
+
+	d1 = 0x12345678;
+	*(volatile u32 *)0 = d1;
+	d2 = *(volatile u32 *)0;
+	if (d1 != d2) {
+		printf("DRAM fails: wrote 0x%08x read 0x%08x\n", d1, d2);
+		DO_LOOP;
+	}
+
+	size = get_ram_size((long *)0, SDRAM_MAX_SIZE);
+
+	return size;
+}
+
+/* ------------------------------------------------------------------------- */
+
+void reset_phys(void)
+{
+	int phyno;
+	unsigned short v;
+
+	udelay(10000);
+	/* reset the damn phys */
+	mii_init();
+
+	for (phyno = 0; phyno < 32; ++phyno) {
+		miiphy_read(phyno, PHY_PHYIDR1, &v);
+		if (v == 0xFFFF)
+			continue;
+		miiphy_write(phyno, PHY_BMCR, PHY_BMCR_POWD);
+		udelay(10000);
+		miiphy_write(phyno, PHY_BMCR, PHY_BMCR_RESET | PHY_BMCR_AUTON);
+		udelay(10000);
+	}
+}
+
+/* ------------------------------------------------------------------------- */
+
+/* GP = general purpose, SP = special purpose (on chip peripheral) */
+
+/* bits that can have a special purpose or can be configured as inputs/outputs */
+#define PA_GP_INMASK	_BW(6)
+#define PA_GP_OUTMASK	(_BW(7))
+#define PA_SP_MASK	0
+#define PA_ODR_VAL	0
+#define PA_GP_OUTVAL	(_BW(7))
+#define PA_SP_DIRVAL	0
+
+#define PB_GP_INMASK	0
+#define PB_GP_OUTMASK	(_B(23))
+#define PB_SP_MASK	0
+#define PB_ODR_VAL	0
+#define PB_GP_OUTVAL	(_B(23))
+#define PB_SP_DIRVAL	0
+
+#define PC_GP_INMASK	0
+#define PC_GP_OUTMASK	(_BW(15))
+
+#define PC_SP_MASK	0
+#define PC_SOVAL	0
+#define PC_INTVAL	0
+#define PC_GP_OUTVAL	0
+#define PC_SP_DIRVAL	0
+
+#define PE_GP_INMASK	0
+#define PE_GP_OUTMASK	0
+#define PE_GP_OUTVAL	0
+
+#define PE_SP_MASK	0
+#define PE_ODR_VAL	0
+#define PE_SP_DIRVAL	0
+
+int board_early_init_f(void)
+{
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+	volatile iop8xx_t *ioport = &immap->im_ioport;
+	volatile cpm8xx_t *cpm = &immap->im_cpm;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+
+	(void)ioport;
+	(void)cpm;
+#if 1
+	/* NAND chip select */
+	upmconfig(UPMB, (uint *) nandcs_table, sizeof(nandcs_table) / sizeof(nandcs_table[0]));
+	memctl->memc_or2 = ((0xFFFFFFFFLU & ~(NAND_SIZE - 1)) | OR_BI | OR_G5LS);
+	memctl->memc_br2 = ((NAND_BASE & BR_BA_MSK) | BR_PS_8 | BR_V | BR_MS_UPMB);
+	memctl->memc_mbmr = 0;	/* all clear */
+#endif
+
+	memctl->memc_br5 &= ~BR_V;
+	memctl->memc_br6 &= ~BR_V;
+	memctl->memc_br7 &= ~BR_V;
+
+#if 1
+	ioport->iop_padat	= PA_GP_OUTVAL;
+	ioport->iop_paodr	= PA_ODR_VAL;
+	ioport->iop_padir	= PA_GP_OUTMASK | PA_SP_DIRVAL;
+	ioport->iop_papar	= PA_SP_MASK;
+
+	cpm->cp_pbdat		= PB_GP_OUTVAL;
+	cpm->cp_pbodr		= PB_ODR_VAL;
+	cpm->cp_pbdir		= PB_GP_OUTMASK | PB_SP_DIRVAL;
+	cpm->cp_pbpar		= PB_SP_MASK;
+
+	ioport->iop_pcdat	= PC_GP_OUTVAL;
+	ioport->iop_pcdir	= PC_GP_OUTMASK | PC_SP_DIRVAL;
+	ioport->iop_pcso	= PC_SOVAL;
+	ioport->iop_pcint	= PC_INTVAL;
+	ioport->iop_pcpar	= PC_SP_MASK;
+
+	cpm->cp_pedat		= PE_GP_OUTVAL;
+	cpm->cp_peodr		= PE_ODR_VAL;
+	cpm->cp_pedir		= PE_GP_OUTMASK | PE_SP_DIRVAL;
+	cpm->cp_pepar		= PE_SP_MASK;
+#endif
+
+	return 0;
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+
+#include <linux/mtd/nand.h>
+
+extern ulong nand_probe(ulong physadr);
+extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
+
+void nand_init(void)
+{
+	unsigned long totlen;
+
+	totlen = nand_probe(CFG_NAND_BASE);
+	printf ("%4lu MB\n", totlen >> 20);
+}
+#endif
+
+#ifdef CONFIG_HW_WATCHDOG
+
+void hw_watchdog_reset(void)
+{
+	/* XXX add here the really funky stuff */
+}
+
+#endif
+
+#ifdef CONFIG_SHOW_ACTIVITY
+
+/* called from timer interrupt every 1/CFG_HZ sec */
+void board_show_activity(ulong timestamp)
+{
+}
+
+/* called when looping */
+void show_activity(int arg)
+{
+}
+
+#endif
+
+#if defined(CFG_CONSOLE_IS_IN_ENV) && defined(CFG_CONSOLE_OVERWRITE_ROUTINE)
+int overwrite_console(void)
+{
+	/* printf("overwrite_console called\n"); */
+	return 0;
+}
+#endif
+
+extern int drv_phone_init(void);
+extern int drv_phone_use_me(void);
+extern int drv_phone_is_idle(void);
+
+int misc_init_r(void)
+{
+	return 0;
+}
+
+int last_stage_init(void)
+{
+	reset_phys();
+
+	return 0;
+}