Initial revision

13 files changed, 3550 insertions, 0 deletions

diff --git a/post/cache_8xx.S b/post/cache_8xx.S
new file mode 100644
index 0000000..4c1c295
--- /dev/null
+++ b/post/cache_8xx.S
@@ -0,0 +1,495 @@
+/*
+ *  Copyright (C) 2002 Wolfgang Denk <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 <config.h>
+
+#ifdef CONFIG_POST
+#if defined(CONFIG_MPC823) || \
+    defined(CONFIG_MPC850) || \
+    defined(CONFIG_MPC855) || \
+    defined(CONFIG_MPC860) || \
+    defined(CONFIG_MPC824X)
+
+#include <post.h>
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+#include <asm/cache.h>
+
+#if CONFIG_POST & CFG_POST_CACHE
+
+	.text
+
+cache_post_dinvalidate:
+	lis	r10, IDC_INVALL@h
+	mtspr	DC_CST, r10
+	blr
+
+cache_post_iinvalidate:
+	lis	r10, IDC_INVALL@h
+	mtspr	IC_CST, r10
+	isync
+	blr
+
+cache_post_ddisable:
+	lis	r10, IDC_DISABLE@h
+	mtspr	DC_CST, r10
+	blr
+
+cache_post_dwb:
+	lis	r10, IDC_ENABLE@h
+	mtspr	DC_CST, r10
+	lis	r10, DC_CFWT@h
+	mtspr	DC_CST, r10
+	blr
+
+cache_post_dwt:
+	lis	r10, IDC_ENABLE@h
+	mtspr	DC_CST, r10
+	lis	r10, DC_SFWT@h
+	mtspr	DC_CST, r10
+	blr
+
+cache_post_idisable:
+	lis	r10, IDC_DISABLE@h
+	mtspr	IC_CST, r10
+	isync
+	blr
+
+cache_post_ienable:
+	lis	r10, IDC_ENABLE@h
+	mtspr	IC_CST, r10
+	isync
+	blr
+
+cache_post_iunlock:
+	lis	r10, IDC_UNALL@h
+	mtspr	IC_CST, r10
+	isync
+	blr
+
+cache_post_ilock:
+	mtspr	IC_ADR, r3
+	lis	r10, IDC_LDLCK@h
+	mtspr	IC_CST, r10
+	isync
+	blr
+
+/*
+ * turn on the data cache
+ * switch the data cache to write-back or write-through mode
+ * invalidate the data cache
+ * write the negative pattern to a cached area
+ * read the area
+ *
+ * The negative pattern must be read at the last step
+ */
+	.global cache_post_test1
+cache_post_test1:
+	mflr	r0
+	stw	r0, 4(r1)
+
+	stwu	r3, -4(r1)
+	stwu	r4, -4(r1)
+
+	bl	cache_post_dwb
+	bl	cache_post_dinvalidate
+
+	/* Write the negative pattern to the test area */
+	lwz	r0, 0(r1)
+	mtctr	r0
+	li	r0, 0xff
+	lwz	r3, 4(r1)
+	subi	r3, r3, 1
+1:
+	stbu	r0, 1(r3)
+	bdnz	1b
+
+	/* Read the test area */
+	lwz	r0, 0(r1)
+	mtctr	r0
+	lwz	r4, 4(r1)
+	subi	r4, r4, 1
+	li	r3, 0
+1:
+	lbzu	r0, 1(r4)
+	cmpli	cr0, r0, 0xff
+	beq	2f
+	li	r3, -1
+	b	3f
+2:
+	bdnz	1b
+3:
+
+	bl	cache_post_ddisable
+	bl	cache_post_dinvalidate
+
+	addi	r1, r1, 8
+
+	lwz	r0, 4(r1)
+	mtlr	r0
+	blr
+
+/*
+ * turn on the data cache
+ * switch the data cache to write-back or write-through mode
+ * invalidate the data cache
+ * write the zero pattern to a cached area
+ * turn off the data cache
+ * write the negative pattern to the area
+ * turn on the data cache
+ * read the area
+ *
+ * The negative pattern must be read at the last step
+ */
+	.global cache_post_test2
+cache_post_test2:
+	mflr	r0
+	stw	r0, 4(r1)
+
+	stwu	r3, -4(r1)
+	stwu	r4, -4(r1)
+
+	bl	cache_post_dwb
+	bl	cache_post_dinvalidate
+
+	/* Write the zero pattern to the test area */
+	lwz	r0, 0(r1)
+	mtctr	r0
+	li	r0, 0
+	lwz	r3, 4(r1)
+	subi	r3, r3, 1
+1:
+	stbu	r0, 1(r3)
+	bdnz	1b
+
+	bl	cache_post_ddisable
+
+	/* Write the negative pattern to the test area */
+	lwz	r0, 0(r1)
+	mtctr	r0
+	li	r0, 0xff
+	lwz	r3, 4(r1)
+	subi	r3, r3, 1
+1:
+	stbu	r0, 1(r3)
+	bdnz	1b
+
+	bl	cache_post_dwb
+
+	/* Read the test area */
+	lwz	r0, 0(r1)
+	mtctr	r0
+	lwz	r4, 4(r1)
+	subi	r4, r4, 1
+	li	r3, 0
+1:
+	lbzu	r0, 1(r4)
+	cmpli	cr0, r0, 0xff
+	beq	2f
+	li	r3, -1
+	b	3f
+2:
+	bdnz	1b
+3:
+
+	bl	cache_post_ddisable
+	bl	cache_post_dinvalidate
+
+	addi	r1, r1, 8
+
+	lwz	r0, 4(r1)
+	mtlr	r0
+	blr
+
+/*
+ * turn on the data cache
+ * switch the data cache to write-through mode
+ * invalidate the data cache
+ * write the zero pattern to a cached area
+ * flush the data cache
+ * write the negative pattern to the area
+ * turn off the data cache
+ * read the area
+ *
+ * The negative pattern must be read at the last step
+ */
+	.global cache_post_test3
+cache_post_test3:
+	mflr	r0
+	stw	r0, 4(r1)
+
+	stwu	r3, -4(r1)
+	stwu	r4, -4(r1)
+
+	bl	cache_post_ddisable
+	bl	cache_post_dinvalidate
+
+	/* Write the zero pattern to the test area */
+	lwz	r0, 0(r1)
+	mtctr	r0
+	li	r0, 0
+	lwz	r3, 4(r1)
+	subi	r3, r3, 1
+1:
+	stbu	r0, 1(r3)
+	bdnz	1b
+
+	bl	cache_post_dwt
+	bl	cache_post_dinvalidate
+
+	/* Write the negative pattern to the test area */
+	lwz	r0, 0(r1)
+	mtctr	r0
+	li	r0, 0xff
+	lwz	r3, 4(r1)
+	subi	r3, r3, 1
+1:
+	stbu	r0, 1(r3)
+	bdnz	1b
+
+	bl	cache_post_ddisable
+	bl	cache_post_dinvalidate
+
+	/* Read the test area */
+	lwz	r0, 0(r1)
+	mtctr	r0
+	lwz	r4, 4(r1)
+	subi	r4, r4, 1
+	li	r3, 0
+1:
+	lbzu	r0, 1(r4)
+	cmpli	cr0, r0, 0xff
+	beq	2f
+	li	r3, -1
+	b	3f
+2:
+	bdnz	1b
+3:
+
+	addi	r1, r1, 8
+
+	lwz	r0, 4(r1)
+	mtlr	r0
+	blr
+
+/*
+ * turn on the data cache
+ * switch the data cache to write-back mode
+ * invalidate the data cache
+ * write the negative pattern to a cached area
+ * flush the data cache
+ * write the zero pattern to the area
+ * invalidate the data cache
+ * read the area
+ *
+ * The negative pattern must be read at the last step
+ */
+	.global cache_post_test4
+cache_post_test4:
+	mflr	r0
+	stw	r0, 4(r1)
+
+	stwu	r3, -4(r1)
+	stwu	r4, -4(r1)
+
+	bl	cache_post_ddisable
+	bl	cache_post_dinvalidate
+
+	/* Write the negative pattern to the test area */
+	lwz	r0, 0(r1)
+	mtctr	r0
+	li	r0, 0xff
+	lwz	r3, 4(r1)
+	subi	r3, r3, 1
+1:
+	stbu	r0, 1(r3)
+	bdnz	1b
+
+	bl	cache_post_dwb
+	bl	cache_post_dinvalidate
+
+	/* Write the zero pattern to the test area */
+	lwz	r0, 0(r1)
+	mtctr	r0
+	li	r0, 0
+	lwz	r3, 4(r1)
+	subi	r3, r3, 1
+1:
+	stbu	r0, 1(r3)
+	bdnz	1b
+
+	bl	cache_post_ddisable
+	bl	cache_post_dinvalidate
+
+	/* Read the test area */
+	lwz	r0, 0(r1)
+	mtctr	r0
+	lwz	r4, 4(r1)
+	subi	r4, r4, 1
+	li	r3, 0
+1:
+	lbzu	r0, 1(r4)
+	cmpli	cr0, r0, 0xff
+	beq	2f
+	li	r3, -1
+	b	3f
+2:
+	bdnz	1b
+3:
+
+	addi	r1, r1, 8
+
+	lwz	r0, 4(r1)
+	mtlr	r0
+	blr
+
+cache_post_test5_1:
+	li	r3, 0
+cache_post_test5_2:
+	li	r3, -1
+
+/*
+ * turn on the instruction cache
+ * unlock the entire instruction cache
+ * invalidate the instruction cache
+ * lock a branch instruction in the instruction cache
+ * replace the branch instruction with "nop"
+ * jump to the branch instruction
+ * check that the branch instruction was executed
+*/
+	.global cache_post_test5
+cache_post_test5:
+	mflr	r0
+	stw	r0, 4(r1)
+
+	bl	cache_post_ienable
+	bl	cache_post_iunlock
+	bl	cache_post_iinvalidate
+
+	/* Compute r9 = cache_post_test5_reloc */
+	bl	cache_post_test5_reloc
+cache_post_test5_reloc:
+	mflr	r9
+
+	/* Copy the test instruction to cache_post_test5_data */
+	lis	r3, (cache_post_test5_1 - cache_post_test5_reloc)@h
+	ori	r3, r3, (cache_post_test5_1 - cache_post_test5_reloc)@l
+	add	r3, r3, r9
+	lis	r4, (cache_post_test5_data - cache_post_test5_reloc)@h
+	ori	r4, r4, (cache_post_test5_data - cache_post_test5_reloc)@l
+	add	r4, r4, r9
+	lwz	r0, 0(r3)
+	stw	r0, 0(r4)
+
+	bl	cache_post_iinvalidate
+
+	/* Lock the branch instruction */
+	lis	r3, (cache_post_test5_data - cache_post_test5_reloc)@h
+	ori	r3, r3, (cache_post_test5_data - cache_post_test5_reloc)@l
+	add	r3, r3, r9
+	bl	cache_post_ilock
+
+	/* Replace the test instruction */
+	lis	r3, (cache_post_test5_2 - cache_post_test5_reloc)@h
+	ori	r3, r3, (cache_post_test5_2 - cache_post_test5_reloc)@l
+	add	r3, r3, r9
+	lis	r4, (cache_post_test5_data - cache_post_test5_reloc)@h
+	ori	r4, r4, (cache_post_test5_data - cache_post_test5_reloc)@l
+	add	r4, r4, r9
+	lwz	r0, 0(r3)
+	stw	r0, 0(r4)
+
+	bl	cache_post_iinvalidate
+
+	/* Execute to the test instruction */
+cache_post_test5_data:
+	nop
+
+	bl	cache_post_iunlock
+
+	lwz	r0, 4(r1)
+	mtlr	r0
+	blr
+
+cache_post_test6_1:
+	li	r3, -1
+cache_post_test6_2:
+	li	r3, 0
+
+/*
+ * turn on the instruction cache
+ * unlock the entire instruction cache
+ * invalidate the instruction cache
+ * lock a branch instruction in the instruction cache
+ * replace the branch instruction with "nop"
+ * jump to the branch instruction
+ * check that the branch instruction was executed
+ */
+	.global cache_post_test6
+cache_post_test6:
+	mflr	r0
+	stw	r0, 4(r1)
+
+	bl	cache_post_ienable
+	bl	cache_post_iunlock
+	bl	cache_post_iinvalidate
+
+	/* Compute r9 = cache_post_test6_reloc */
+	bl	cache_post_test6_reloc
+cache_post_test6_reloc:
+	mflr	r9
+
+	/* Copy the test instruction to cache_post_test6_data */
+	lis	r3, (cache_post_test6_1 - cache_post_test6_reloc)@h
+	ori	r3, r3, (cache_post_test6_1 - cache_post_test6_reloc)@l
+	add	r3, r3, r9
+	lis	r4, (cache_post_test6_data - cache_post_test6_reloc)@h
+	ori	r4, r4, (cache_post_test6_data - cache_post_test6_reloc)@l
+	add	r4, r4, r9
+	lwz	r0, 0(r3)
+	stw	r0, 0(r4)
+
+	bl	cache_post_iinvalidate
+
+	/* Replace the test instruction */
+	lis	r3, (cache_post_test6_2 - cache_post_test6_reloc)@h
+	ori	r3, r3, (cache_post_test6_2 - cache_post_test6_reloc)@l
+	add	r3, r3, r9
+	lis	r4, (cache_post_test6_data - cache_post_test6_reloc)@h
+	ori	r4, r4, (cache_post_test6_data - cache_post_test6_reloc)@l
+	add	r4, r4, r9
+	lwz	r0, 0(r3)
+	stw	r0, 0(r4)
+
+	bl	cache_post_iinvalidate
+
+	/* Execute to the test instruction */
+cache_post_test6_data:
+	nop
+
+	lwz	r0, 4(r1)
+	mtlr	r0
+	blr
+
+#endif /* CONFIG_MPC823 || MPC850 || MPC855 || MPC860 || MPC824X */
+#endif /* CONFIG_POST & CFG_POST_CACHE */
+#endif /* CONFIG_POST */
diff --git a/post/cpu.c b/post/cpu.c
new file mode 100644
index 0000000..6b8fc6e
--- /dev/null
+++ b/post/cpu.c
@@ -0,0 +1,132 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/*
+ * CPU test
+ *
+ * This test checks the arithmetic logic unit (ALU) of CPU.
+ * It tests independently various groups of instructions using
+ * run-time modification of the code to reduce the memory footprint.
+ * For more details refer to post/cpu/ *.c files.
+ */
+
+#ifdef CONFIG_POST
+
+#include <watchdog.h>
+#include <post.h>
+
+#if CONFIG_POST & CFG_POST_CPU
+
+extern int cpu_post_test_cmp (void);
+extern int cpu_post_test_cmpi (void);
+extern int cpu_post_test_two (void);
+extern int cpu_post_test_twox (void);
+extern int cpu_post_test_three (void);
+extern int cpu_post_test_threex (void);
+extern int cpu_post_test_threei (void);
+extern int cpu_post_test_andi (void);
+extern int cpu_post_test_srawi (void);
+extern int cpu_post_test_rlwnm (void);
+extern int cpu_post_test_rlwinm (void);
+extern int cpu_post_test_rlwimi (void);
+extern int cpu_post_test_store (void);
+extern int cpu_post_test_load (void);
+extern int cpu_post_test_cr (void);
+extern int cpu_post_test_b (void);
+extern int cpu_post_test_multi (void);
+extern int cpu_post_test_string (void);
+extern int cpu_post_test_complex (void);
+
+ulong cpu_post_makecr (long v)
+{
+	ulong cr = 0;
+
+	if (v < 0)
+		cr |= 0x80000000;
+	if (v > 0)
+		cr |= 0x40000000;
+	if (v == 0)
+		cr |= 0x20000000;
+
+	return cr;
+}
+
+int cpu_post_test (int flags)
+{
+	int ic = icache_status ();
+	int ret = 0;
+
+	if (ic)
+		icache_disable ();
+
+	if (ret == 0)
+		ret = cpu_post_test_cmp ();
+	if (ret == 0)
+		ret = cpu_post_test_cmpi ();
+	if (ret == 0)
+		ret = cpu_post_test_two ();
+	if (ret == 0)
+		ret = cpu_post_test_twox ();
+	if (ret == 0)
+		ret = cpu_post_test_three ();
+	if (ret == 0)
+		ret = cpu_post_test_threex ();
+	if (ret == 0)
+		ret = cpu_post_test_threei ();
+	WATCHDOG_RESET();
+	if (ret == 0)
+		ret = cpu_post_test_andi ();
+	if (ret == 0)
+		ret = cpu_post_test_srawi ();
+	if (ret == 0)
+		ret = cpu_post_test_rlwnm ();
+	if (ret == 0)
+		ret = cpu_post_test_rlwinm ();
+	if (ret == 0)
+		ret = cpu_post_test_rlwimi ();
+	if (ret == 0)
+		ret = cpu_post_test_store ();
+	if (ret == 0)
+		ret = cpu_post_test_load ();
+	WATCHDOG_RESET();
+	if (ret == 0)
+		ret = cpu_post_test_cr ();
+	if (ret == 0)
+		ret = cpu_post_test_b ();
+	if (ret == 0)
+		ret = cpu_post_test_multi ();
+	if (ret == 0)
+		ret = cpu_post_test_string ();
+	if (ret == 0)
+		ret = cpu_post_test_complex ();
+
+	if (ic)
+		icache_enable ();
+
+	return ret;
+}
+
+#endif /* CONFIG_POST & CFG_POST_CPU */
+#endif /* CONFIG_POST */
diff --git a/post/cpu/b.c b/post/cpu/b.c
new file mode 100644
index 0000000..1ae22cc
--- /dev/null
+++ b/post/cpu/b.c
@@ -0,0 +1,197 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/*
+ * CPU test
+ * Branch instructions:		b, bl, bc
+ *
+ * The first 2 instructions (b, bl) are verified by jumping
+ * to a fixed address and checking whether control was transfered
+ * to that very point. For the bl instruction the value of the
+ * link register is checked as well (using mfspr).
+ * To verify the bc instruction various combinations of the BI/BO
+ * fields, the CTR and the condition register values are
+ * checked. The list of such combinations is pre-built and
+ * linked in U-Boot at build time.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include "cpu_asm.h"
+
+#if CONFIG_POST & CFG_POST_CPU
+
+extern void cpu_post_exec_11 (ulong *code, ulong *res, ulong op1);
+extern void cpu_post_exec_31 (ulong *code, ulong *ctr, ulong *lr, ulong *jump,
+    ulong cr);
+
+static int cpu_post_test_bc (ulong cmd, ulong bo, ulong bi,
+    int pjump, int dec, int link, ulong pctr, ulong cr)
+{
+    int ret = 0;
+    ulong lr = 0;
+    ulong ctr = pctr;
+    ulong jump;
+
+    unsigned long code[] =
+    {
+	ASM_MTCR(6),
+	ASM_MFLR(6),
+	ASM_MTCTR(3),
+	ASM_MTLR(4),
+	ASM_LI(5, 1),
+	ASM_3O(cmd, bo, bi, 8),
+	ASM_LI(5, 0),
+	ASM_MFCTR(3),
+	ASM_MFLR(4),
+	ASM_MTLR(6),
+	ASM_BLR,
+    };
+
+    cpu_post_exec_31 (code, &ctr, &lr, &jump, cr);
+
+    if (ret == 0)
+	ret = pjump == jump ? 0 : -1;
+    if (ret == 0)
+    {
+	if (dec)
+	    ret = pctr == ctr + 1 ? 0 : -1;
+	else
+	    ret = pctr == ctr ? 0 : -1;
+    }
+    if (ret == 0)
+    {
+    	if (link)
+            ret = lr == (ulong) code + 24 ? 0 : -1;
+	else
+	    ret = lr == 0 ? 0 : -1;
+    }
+
+    return ret;
+}
+
+int cpu_post_test_b (void)
+{
+    int ret = 0;
+    unsigned int i;
+
+    if (ret == 0)
+    {
+    	ulong code[] =
+	{
+	   ASM_MFLR(4),
+	   ASM_MTLR(3),
+	   ASM_B(4),
+	   ASM_MFLR(3),
+	   ASM_MTLR(4),
+	   ASM_BLR,
+	};
+	ulong res;
+
+	cpu_post_exec_11 (code, &res, 0);
+
+	ret = res == 0 ? 0 : -1;
+
+    	if (ret != 0)
+    	{
+            post_log ("Error at b1 test !\n");
+    	}
+    }
+
+    if (ret == 0)
+    {
+    	ulong code[] =
+	{
+	   ASM_MFLR(4),
+	   ASM_MTLR(3),
+	   ASM_BL(4),
+	   ASM_MFLR(3),
+	   ASM_MTLR(4),
+	   ASM_BLR,
+	};
+	ulong res;
+
+	cpu_post_exec_11 (code, &res, 0);
+
+	ret = res == (ulong)code + 12 ? 0 : -1;
+
+    	if (ret != 0)
+    	{
+            post_log ("Error at b2 test !\n");
+    	}
+    }
+
+    if (ret == 0)
+    {
+        ulong cc, cd;
+	int cond;
+	ulong ctr;
+	int link;
+
+	i = 0;
+
+	for (cc = 0; cc < 4 && ret == 0; cc++)
+	{
+	    for (cd = 0; cd < 4 && ret == 0; cd++)
+	    {
+	        for (link = 0; link <= 1 && ret == 0; link++)
+		{
+		    for (cond = 0; cond <= 1 && ret == 0; cond++)
+		    {
+		        for (ctr = 1; ctr <= 2 && ret == 0; ctr++)
+			{
+			    int dec = cd < 2;
+			    int cr = cond ? 0x80000000 : 0x00000000;
+			    int jumpc = cc >= 2 ||
+			                (cc == 0 && !cond) ||
+    			    		(cc == 1 && cond);
+			    int jumpd = cd >= 2 ||
+			                (cd == 0 && ctr != 1) ||
+    			    		(cd == 1 && ctr == 1);
+			    int jump = jumpc && jumpd;
+
+			    ret = cpu_post_test_bc (link ? OP_BCL : OP_BC,
+			        (cc << 3) + (cd << 1), 0, jump, dec, link,
+				ctr, cr);
+
+		    	    if (ret != 0)
+		    	    {
+		                post_log ("Error at b3 test %d !\n", i);
+		            }
+
+			    i++;
+			}
+		    }
+		}
+	    }
+	}
+    }
+
+    return ret;
+}
+
+#endif
+#endif
diff --git a/post/cpu/cmp.c b/post/cpu/cmp.c
new file mode 100644
index 0000000..789a24c
--- /dev/null
+++ b/post/cpu/cmp.c
@@ -0,0 +1,133 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/*
+ * CPU test
+ * Integer compare instructions:	cmpw, cmplw
+ *
+ * To verify these instructions the test runs them with
+ * different combinations of operands, reads the condition
+ * register value and compares it with the expected one.
+ * The test contains a pre-built table
+ * containing the description of each test case: the instruction,
+ * the values of the operands, the condition field to save
+ * the result in and the expected result.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include "cpu_asm.h"
+
+#if CONFIG_POST & CFG_POST_CPU
+
+extern void cpu_post_exec_12 (ulong *code, ulong *res, ulong op1, ulong op2);
+
+static struct cpu_post_cmp_s
+{
+    ulong cmd;
+    ulong op1;
+    ulong op2;
+    ulong cr;
+    ulong res;
+} cpu_post_cmp_table[] =
+{
+    {
+	OP_CMPW,
+	123,
+	123,
+	2,
+	0x02
+    },
+    {
+	OP_CMPW,
+	123,
+	133,
+	3,
+	0x08
+    },
+    {
+	OP_CMPW,
+	123,
+	-133,
+	4,
+	0x04
+    },
+    {
+	OP_CMPLW,
+	123,
+	123,
+	2,
+	0x02
+    },
+    {
+	OP_CMPLW,
+	123,
+	-133,
+	3,
+	0x08
+    },
+    {
+	OP_CMPLW,
+	123,
+	113,
+	4,
+	0x04
+    },
+};
+static unsigned int cpu_post_cmp_size =
+    sizeof (cpu_post_cmp_table) / sizeof (struct cpu_post_cmp_s);
+
+int cpu_post_test_cmp (void)
+{
+    int ret = 0;
+    unsigned int i;
+
+    for (i = 0; i < cpu_post_cmp_size && ret == 0; i++)
+    {
+	struct cpu_post_cmp_s *test = cpu_post_cmp_table + i;
+    	unsigned long code[] =
+	{
+	    ASM_2C(test->cmd, test->cr, 3, 4),
+	    ASM_MFCR(3),
+	    ASM_BLR
+	};
+	ulong res;
+
+	cpu_post_exec_12 (code, & res, test->op1, test->op2);
+
+	ret = ((res >> (28 - 4 * test->cr)) & 0xe) == test->res ? 0 : -1;
+
+	if (ret != 0)
+	{
+	    post_log ("Error at cmp test %d !\n", i);
+	}
+    }
+
+    return ret;
+}
+
+#endif
+#endif
diff --git a/post/cpu/cmpi.c b/post/cpu/cmpi.c
new file mode 100644
index 0000000..e0c2aaf
--- /dev/null
+++ b/post/cpu/cmpi.c
@@ -0,0 +1,133 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/*
+ * CPU test
+ * Integer compare instructions:	cmpwi, cmplwi
+ *
+ * To verify these instructions the test runs them with
+ * different combinations of operands, reads the condition
+ * register value and compares it with the expected one.
+ * The test contains a pre-built table
+ * containing the description of each test case: the instruction,
+ * the values of the operands, the condition field to save
+ * the result in and the expected result.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include "cpu_asm.h"
+
+#if CONFIG_POST & CFG_POST_CPU
+
+extern void cpu_post_exec_11 (ulong *code, ulong *res, ulong op1);
+
+static struct cpu_post_cmpi_s
+{
+    ulong cmd;
+    ulong op1;
+    ushort op2;
+    ulong cr;
+    ulong res;
+} cpu_post_cmpi_table[] =
+{
+    {
+	OP_CMPWI,
+	123,
+	123,
+	2,
+	0x02
+    },
+    {
+	OP_CMPWI,
+	123,
+	133,
+	3,
+	0x08
+    },
+    {
+	OP_CMPWI,
+	123,
+	-133,
+	4,
+	0x04
+    },
+    {
+	OP_CMPLWI,
+	123,
+	123,
+	2,
+	0x02
+    },
+    {
+	OP_CMPLWI,
+	123,
+	-133,
+	3,
+	0x08
+    },
+    {
+	OP_CMPLWI,
+	123,
+	113,
+	4,
+	0x04
+    },
+};
+static unsigned int cpu_post_cmpi_size =
+    sizeof (cpu_post_cmpi_table) / sizeof (struct cpu_post_cmpi_s);
+
+int cpu_post_test_cmpi (void)
+{
+    int ret = 0;
+    unsigned int i;
+
+    for (i = 0; i < cpu_post_cmpi_size && ret == 0; i++)
+    {
+	struct cpu_post_cmpi_s *test = cpu_post_cmpi_table + i;
+    	unsigned long code[] =
+	{
+	    ASM_1IC(test->cmd, test->cr, 3, test->op2),
+	    ASM_MFCR(3),
+	    ASM_BLR
+	};
+	ulong res;
+
+	cpu_post_exec_11 (code, & res, test->op1);
+
+	ret = ((res >> (28 - 4 * test->cr)) & 0xe) == test->res ? 0 : -1;
+
+	if (ret != 0)
+	{
+	    post_log ("Error at cmpi test %d !\n", i);
+	}
+    }
+
+    return ret;
+}
+
+#endif
+#endif
diff --git a/post/cpu/cr.c b/post/cpu/cr.c
new file mode 100644
index 0000000..8e38729
--- /dev/null
+++ b/post/cpu/cr.c
@@ -0,0 +1,356 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/*
+ * CPU test
+ * Condition register istructions:	mtcr, mfcr, mcrxr,
+ *					crand, crandc, cror, crorc, crxor,
+ *					crnand, crnor, creqv, mcrf
+ *
+ * The mtcrf/mfcr instructions is tested by loading different
+ * values into the condition register (mtcrf), moving its value
+ * to a general-purpose register (mfcr) and comparing this value
+ * with the expected one.
+ * The mcrxr instruction is tested by loading a fixed value
+ * into the XER register (mtspr), moving XER value to the
+ * condition register (mcrxr), moving it to a general-purpose
+ * register (mfcr) and comparing the value of this register with
+ * the expected one.
+ * The rest of instructions is tested by loading a fixed
+ * value into the condition register (mtcrf), executing each
+ * instruction several times to modify all 4-bit condition
+ * fields, moving the value of the conditional register to a
+ * general-purpose register (mfcr) and comparing it with the
+ * expected one.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include "cpu_asm.h"
+
+#if CONFIG_POST & CFG_POST_CPU
+
+extern void cpu_post_exec_11 (ulong *code, ulong *res, ulong op1);
+extern void cpu_post_exec_21x (ulong *code, ulong *op1, ulong *op2, ulong op3);
+
+static ulong cpu_post_cr_table1[] =
+{
+    0xaaaaaaaa,
+    0x55555555,
+};
+static unsigned int cpu_post_cr_size1 =
+    sizeof (cpu_post_cr_table1) / sizeof (ulong);
+
+static struct cpu_post_cr_s2 {
+    ulong xer;
+    ulong cr;
+} cpu_post_cr_table2[] =
+{
+    {
+    	0xa0000000,
+	1
+    },
+    {
+    	0x40000000,
+	5
+    },
+};
+static unsigned int cpu_post_cr_size2 =
+    sizeof (cpu_post_cr_table2) / sizeof (struct cpu_post_cr_s2);
+
+static struct cpu_post_cr_s3 {
+    ulong cr;
+    ulong cs;
+    ulong cd;
+    ulong res;
+} cpu_post_cr_table3[] =
+{
+    {
+    	0x01234567,
+	0,
+	4,
+	0x01230567
+    },
+    {
+    	0x01234567,
+	7,
+	0,
+	0x71234567
+    },
+};
+static unsigned int cpu_post_cr_size3 =
+    sizeof (cpu_post_cr_table3) / sizeof (struct cpu_post_cr_s3);
+
+static struct cpu_post_cr_s4 {
+    ulong cmd;
+    ulong cr;
+    ulong op1;
+    ulong op2;
+    ulong op3;
+    ulong res;
+} cpu_post_cr_table4[] =
+{
+    {
+	OP_CRAND,
+    	0x0000ffff,
+	0,
+	16,
+	0,
+    	0x0000ffff
+    },
+    {
+	OP_CRAND,
+    	0x0000ffff,
+	16,
+	17,
+	0,
+    	0x8000ffff
+    },
+    {
+	OP_CRANDC,
+    	0x0000ffff,
+	0,
+	16,
+	0,
+    	0x0000ffff
+    },
+    {
+	OP_CRANDC,
+    	0x0000ffff,
+	16,
+	0,
+	0,
+    	0x8000ffff
+    },
+    {
+	OP_CROR,
+    	0x0000ffff,
+	0,
+	16,
+	0,
+    	0x8000ffff
+    },
+    {
+	OP_CROR,
+    	0x0000ffff,
+	0,
+	1,
+	0,
+    	0x0000ffff
+    },
+    {
+	OP_CRORC,
+    	0x0000ffff,
+	0,
+	16,
+	0,
+    	0x0000ffff
+    },
+    {
+	OP_CRORC,
+    	0x0000ffff,
+	0,
+	0,
+	0,
+    	0x8000ffff
+    },
+    {
+	OP_CRXOR,
+    	0x0000ffff,
+	0,
+	0,
+	0,
+    	0x0000ffff
+    },
+    {
+	OP_CRXOR,
+    	0x0000ffff,
+	0,
+	16,
+	0,
+    	0x8000ffff
+    },
+    {
+	OP_CRNAND,
+    	0x0000ffff,
+	0,
+	16,
+	0,
+    	0x8000ffff
+    },
+    {
+	OP_CRNAND,
+    	0x0000ffff,
+	16,
+	17,
+	0,
+    	0x0000ffff
+    },
+    {
+	OP_CRNOR,
+    	0x0000ffff,
+	0,
+	16,
+	0,
+    	0x0000ffff
+    },
+    {
+	OP_CRNOR,
+    	0x0000ffff,
+	0,
+	1,
+	0,
+    	0x8000ffff
+    },
+    {
+	OP_CREQV,
+    	0x0000ffff,
+	0,
+	0,
+	0,
+    	0x8000ffff
+    },
+    {
+	OP_CREQV,
+    	0x0000ffff,
+	0,
+	16,
+	0,
+    	0x0000ffff
+    },
+};
+static unsigned int cpu_post_cr_size4 =
+    sizeof (cpu_post_cr_table4) / sizeof (struct cpu_post_cr_s4);
+
+int cpu_post_test_cr (void)
+{
+    int ret = 0;
+    unsigned int i;
+    unsigned long cr_sav;
+
+    asm ( "mfcr %0" : "=r" (cr_sav) : );
+
+    for (i = 0; i < cpu_post_cr_size1 && ret == 0; i++)
+    {
+	ulong cr = cpu_post_cr_table1[i];
+	ulong res;
+
+    	unsigned long code[] =
+	{
+	    ASM_MTCR(3),
+	    ASM_MFCR(3),
+	    ASM_BLR,
+	};
+
+	cpu_post_exec_11 (code, &res, cr);
+
+	ret = res == cr ? 0 : -1;
+
+    	if (ret != 0)
+    	{
+            post_log ("Error at cr1 test %d !\n", i);
+    	}
+    }
+
+    for (i = 0; i < cpu_post_cr_size2 && ret == 0; i++)
+    {
+	struct cpu_post_cr_s2 *test = cpu_post_cr_table2 + i;
+	ulong res;
+	ulong xer;
+
+    	unsigned long code[] =
+	{
+	    ASM_MTXER(3),
+	    ASM_MCRXR(test->cr),
+	    ASM_MFCR(3),
+	    ASM_MFXER(4),
+	    ASM_BLR,
+	};
+
+	cpu_post_exec_21x (code, &res, &xer, test->xer);
+
+	ret = xer == 0 && ((res << (4 * test->cr)) & 0xe0000000) == test->xer ?
+	      0 : -1;
+
+    	if (ret != 0)
+    	{
+            post_log ("Error at cr2 test %d !\n", i);
+    	}
+    }
+
+    for (i = 0; i < cpu_post_cr_size3 && ret == 0; i++)
+    {
+	struct cpu_post_cr_s3 *test = cpu_post_cr_table3 + i;
+	ulong res;
+
+    	unsigned long code[] =
+	{
+	    ASM_MTCR(3),
+	    ASM_MCRF(test->cd, test->cs),
+	    ASM_MFCR(3),
+	    ASM_BLR,
+	};
+
+	cpu_post_exec_11 (code, &res, test->cr);
+
+	ret = res == test->res ? 0 : -1;
+
+    	if (ret != 0)
+    	{
+            post_log ("Error at cr3 test %d !\n", i);
+    	}
+    }
+
+    for (i = 0; i < cpu_post_cr_size4 && ret == 0; i++)
+    {
+	struct cpu_post_cr_s4 *test = cpu_post_cr_table4 + i;
+	ulong res;
+
+    	unsigned long code[] =
+	{
+	    ASM_MTCR(3),
+	    ASM_12F(test->cmd, test->op3, test->op1, test->op2),
+	    ASM_MFCR(3),
+	    ASM_BLR,
+	};
+
+	cpu_post_exec_11 (code, &res, test->cr);
+
+	ret = res == test->res ? 0 : -1;
+
+    	if (ret != 0)
+    	{
+            post_log ("Error at cr4 test %d !\n", i);
+    	}
+    }
+
+    asm ( "mtcr %0" : : "r" (cr_sav));
+
+    return ret;
+}
+
+#endif
+#endif
diff --git a/post/cpu/three.c b/post/cpu/three.c
new file mode 100644
index 0000000..c2d7476
--- /dev/null
+++ b/post/cpu/three.c
@@ -0,0 +1,259 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/*
+ * CPU test
+ * Ternary instructions		instr rD,rA,rB
+ *
+ * Arithmetic instructions:	add, addc, adde, subf, subfc, subfe,
+ *				mullw, mulhw, mulhwu, divw, divwu
+ *
+ * The test contains a pre-built table of instructions, operands and
+ * expected results. For each table entry, the test will cyclically use
+ * different sets of operand registers and result registers.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include "cpu_asm.h"
+
+#if CONFIG_POST & CFG_POST_CPU
+
+extern void cpu_post_exec_22 (ulong *code, ulong *cr, ulong *res, ulong op1,
+    ulong op2);
+extern ulong cpu_post_makecr (long v);
+
+static struct cpu_post_three_s
+{
+    ulong cmd;
+    ulong op1;
+    ulong op2;
+    ulong res;
+} cpu_post_three_table[] =
+{
+    {
+    	OP_ADD,
+	100,
+	200,
+	300
+    },
+    {
+    	OP_ADD,
+	100,
+	-200,
+	-100
+    },
+    {
+    	OP_ADDC,
+	100,
+	200,
+	300
+    },
+    {
+    	OP_ADDC,
+	100,
+	-200,
+	-100
+    },
+    {
+    	OP_ADDE,
+	100,
+	200,
+	300
+    },
+    {
+    	OP_ADDE,
+	100,
+	-200,
+	-100
+    },
+    {
+    	OP_SUBF,
+	100,
+	200,
+	100
+    },
+    {
+    	OP_SUBF,
+	300,
+	200,
+	-100
+    },
+    {
+    	OP_SUBFC,
+	100,
+	200,
+	100
+    },
+    {
+    	OP_SUBFC,
+	300,
+	200,
+	-100
+    },
+    {
+    	OP_SUBFE,
+	100,
+	200,
+	200 + ~100
+    },
+    {
+    	OP_SUBFE,
+	300,
+	200,
+	200 + ~300
+    },
+    {
+    	OP_MULLW,
+	200,
+	300,
+	200 * 300
+    },
+    {
+    	OP_MULHW,
+	0x10000000,
+	0x10000000,
+	0x1000000
+    },
+    {
+    	OP_MULHWU,
+	0x80000000,
+	0x80000000,
+	0x40000000
+    },
+    {
+    	OP_DIVW,
+	-20,
+	5,
+	-4
+    },
+    {
+    	OP_DIVWU,
+	0x8000,
+	0x200,
+	0x40
+    },
+};
+static unsigned int cpu_post_three_size =
+    sizeof (cpu_post_three_table) / sizeof (struct cpu_post_three_s);
+
+int cpu_post_test_three (void)
+{
+    int ret = 0;
+    unsigned int i, reg;
+    int flag = disable_interrupts();
+
+    for (i = 0; i < cpu_post_three_size && ret == 0; i++)
+    {
+	struct cpu_post_three_s *test = cpu_post_three_table + i;
+
+	for (reg = 0; reg < 32 && ret == 0; reg++)
+	{
+	    unsigned int reg0 = (reg + 0) % 32;
+	    unsigned int reg1 = (reg + 1) % 32;
+	    unsigned int reg2 = (reg + 2) % 32;
+	    unsigned int stk = reg < 16 ? 31 : 15;
+    	    unsigned long code[] =
+	    {
+		ASM_STW(stk, 1, -4),
+		ASM_ADDI(stk, 1, -24),
+		ASM_STW(3, stk, 12),
+		ASM_STW(4, stk, 16),
+		ASM_STW(reg0, stk, 8),
+		ASM_STW(reg1, stk, 4),
+		ASM_STW(reg2, stk, 0),
+		ASM_LWZ(reg1, stk, 12),
+		ASM_LWZ(reg0, stk, 16),
+		ASM_12(test->cmd, reg2, reg1, reg0),
+		ASM_STW(reg2, stk, 12),
+		ASM_LWZ(reg2, stk, 0),
+		ASM_LWZ(reg1, stk, 4),
+		ASM_LWZ(reg0, stk, 8),
+		ASM_LWZ(3, stk, 12),
+		ASM_ADDI(1, stk, 24),
+		ASM_LWZ(stk, 1, -4),
+		ASM_BLR,
+	    };
+    	    unsigned long codecr[] =
+	    {
+		ASM_STW(stk, 1, -4),
+		ASM_ADDI(stk, 1, -24),
+		ASM_STW(3, stk, 12),
+		ASM_STW(4, stk, 16),
+		ASM_STW(reg0, stk, 8),
+		ASM_STW(reg1, stk, 4),
+		ASM_STW(reg2, stk, 0),
+		ASM_LWZ(reg1, stk, 12),
+		ASM_LWZ(reg0, stk, 16),
+		ASM_12(test->cmd, reg2, reg1, reg0) | BIT_C,
+		ASM_STW(reg2, stk, 12),
+		ASM_LWZ(reg2, stk, 0),
+		ASM_LWZ(reg1, stk, 4),
+		ASM_LWZ(reg0, stk, 8),
+		ASM_LWZ(3, stk, 12),
+		ASM_ADDI(1, stk, 24),
+		ASM_LWZ(stk, 1, -4),
+		ASM_BLR,
+	    };
+	    ulong res;
+	    ulong cr;
+
+	    if (ret == 0)
+	    {
+ 	    	cr = 0;
+	    	cpu_post_exec_22 (code, & cr, & res, test->op1, test->op2);
+
+	    	ret = res == test->res && cr == 0 ? 0 : -1;
+
+	    	if (ret != 0)
+	    	{
+	            post_log ("Error at three test %d !\n", i);
+	    	}
+	    }
+
+	    if (ret == 0)
+	    {
+	    	cpu_post_exec_22 (codecr, & cr, & res, test->op1, test->op2);
+
+	    	ret = res == test->res &&
+		      (cr & 0xe0000000) == cpu_post_makecr (res) ? 0 : -1;
+
+	    	if (ret != 0)
+	    	{
+	            post_log ("Error at three test %d !\n", i);
+	        }
+	    }
+	}
+    }
+
+    if (flag)
+    	enable_interrupts();
+
+    return ret;
+}
+
+#endif
+#endif
diff --git a/post/cpu/threei.c b/post/cpu/threei.c
new file mode 100644
index 0000000..79f0178
--- /dev/null
+++ b/post/cpu/threei.c
@@ -0,0 +1,137 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/*
+ * CPU test
+ * Ternary instructions		instr rA,rS,UIMM
+ *
+ * Logic instructions:		ori, oris, xori, xoris
+ *
+ * The test contains a pre-built table of instructions, operands and
+ * expected results. For each table entry, the test will cyclically use
+ * different sets of operand registers and result registers.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include "cpu_asm.h"
+
+#if CONFIG_POST & CFG_POST_CPU
+
+extern void cpu_post_exec_21 (ulong *code, ulong *cr, ulong *res, ulong op);
+extern ulong cpu_post_makecr (long v);
+
+static struct cpu_post_threei_s
+{
+    ulong cmd;
+    ulong op1;
+    ushort op2;
+    ulong res;
+} cpu_post_threei_table[] =
+{
+    {
+    	OP_ORI,
+	0x80000000,
+	0xffff,
+	0x8000ffff
+    },
+    {
+    	OP_ORIS,
+	0x00008000,
+	0xffff,
+	0xffff8000
+    },
+    {
+    	OP_XORI,
+	0x8000ffff,
+	0xffff,
+	0x80000000
+    },
+    {
+    	OP_XORIS,
+	0x00008000,
+	0xffff,
+	0xffff8000
+    },
+};
+static unsigned int cpu_post_threei_size =
+    sizeof (cpu_post_threei_table) / sizeof (struct cpu_post_threei_s);
+
+int cpu_post_test_threei (void)
+{
+    int ret = 0;
+    unsigned int i, reg;
+    int flag = disable_interrupts();
+
+    for (i = 0; i < cpu_post_threei_size && ret == 0; i++)
+    {
+	struct cpu_post_threei_s *test = cpu_post_threei_table + i;
+
+	for (reg = 0; reg < 32 && ret == 0; reg++)
+	{
+	    unsigned int reg0 = (reg + 0) % 32;
+	    unsigned int reg1 = (reg + 1) % 32;
+	    unsigned int stk = reg < 16 ? 31 : 15;
+    	    unsigned long code[] =
+	    {
+		ASM_STW(stk, 1, -4),
+		ASM_ADDI(stk, 1, -16),
+		ASM_STW(3, stk, 8),
+		ASM_STW(reg0, stk, 4),
+		ASM_STW(reg1, stk, 0),
+		ASM_LWZ(reg0, stk, 8),
+		ASM_11IX(test->cmd, reg1, reg0, test->op2),
+		ASM_STW(reg1, stk, 8),
+		ASM_LWZ(reg1, stk, 0),
+		ASM_LWZ(reg0, stk, 4),
+		ASM_LWZ(3, stk, 8),
+		ASM_ADDI(1, stk, 16),
+		ASM_LWZ(stk, 1, -4),
+		ASM_BLR,
+	    };
+	    ulong res;
+	    ulong cr;
+
+ 	    cr = 0;
+	    cpu_post_exec_21 (code, & cr, & res, test->op1);
+
+	    ret = res == test->res && cr == 0 ? 0 : -1;
+
+	    if (ret != 0)
+	    {
+	        post_log ("Error at threei test %d !\n", i);
+	    }
+	}
+    }
+
+    if (flag)
+    	enable_interrupts();
+
+    return ret;
+}
+
+#endif
+#endif
diff --git a/post/cpu/threex.c b/post/cpu/threex.c
new file mode 100644
index 0000000..2c72063
--- /dev/null
+++ b/post/cpu/threex.c
@@ -0,0 +1,229 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/*
+ * CPU test
+ * Ternary instructions		instr rA,rS,rB
+ *
+ * Logic instructions:		or, orc, xor, nand, nor, eqv
+ * Shift instructions:		slw, srw, sraw
+ *
+ * The test contains a pre-built table of instructions, operands and
+ * expected results. For each table entry, the test will cyclically use
+ * different sets of operand registers and result registers.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include "cpu_asm.h"
+
+#if CONFIG_POST & CFG_POST_CPU
+
+extern void cpu_post_exec_22 (ulong *code, ulong *cr, ulong *res, ulong op1,
+    ulong op2);
+extern ulong cpu_post_makecr (long v);
+
+static struct cpu_post_threex_s
+{
+    ulong cmd;
+    ulong op1;
+    ulong op2;
+    ulong res;
+} cpu_post_threex_table[] =
+{
+    {
+    	OP_OR,
+	0x1234,
+	0x5678,
+	0x1234 | 0x5678
+    },
+    {
+    	OP_ORC,
+	0x1234,
+	0x5678,
+	0x1234 | ~0x5678
+    },
+    {
+    	OP_XOR,
+	0x1234,
+	0x5678,
+	0x1234 ^ 0x5678
+    },
+    {
+    	OP_NAND,
+	0x1234,
+	0x5678,
+	~(0x1234 & 0x5678)
+    },
+    {
+    	OP_NOR,
+	0x1234,
+	0x5678,
+	~(0x1234 | 0x5678)
+    },
+    {
+    	OP_EQV,
+	0x1234,
+	0x5678,
+	~(0x1234 ^ 0x5678)
+    },
+    {
+    	OP_SLW,
+	0x80,
+	16,
+	0x800000
+    },
+    {
+    	OP_SLW,
+	0x80,
+	32,
+	0
+    },
+    {
+    	OP_SRW,
+	0x800000,
+	16,
+	0x80
+    },
+    {
+    	OP_SRW,
+	0x800000,
+	32,
+	0
+    },
+    {
+    	OP_SRAW,
+	0x80000000,
+	3,
+	0xf0000000
+    },
+    {
+    	OP_SRAW,
+	0x8000,
+	3,
+	0x1000
+    },
+};
+static unsigned int cpu_post_threex_size =
+    sizeof (cpu_post_threex_table) / sizeof (struct cpu_post_threex_s);
+
+int cpu_post_test_threex (void)
+{
+    int ret = 0;
+    unsigned int i, reg;
+    int flag = disable_interrupts();
+
+    for (i = 0; i < cpu_post_threex_size && ret == 0; i++)
+    {
+	struct cpu_post_threex_s *test = cpu_post_threex_table + i;
+
+	for (reg = 0; reg < 32 && ret == 0; reg++)
+	{
+	    unsigned int reg0 = (reg + 0) % 32;
+	    unsigned int reg1 = (reg + 1) % 32;
+	    unsigned int reg2 = (reg + 2) % 32;
+	    unsigned int stk = reg < 16 ? 31 : 15;
+    	    unsigned long code[] =
+	    {
+		ASM_STW(stk, 1, -4),
+		ASM_ADDI(stk, 1, -24),
+		ASM_STW(3, stk, 12),
+		ASM_STW(4, stk, 16),
+		ASM_STW(reg0, stk, 8),
+		ASM_STW(reg1, stk, 4),
+		ASM_STW(reg2, stk, 0),
+		ASM_LWZ(reg1, stk, 12),
+		ASM_LWZ(reg0, stk, 16),
+		ASM_12X(test->cmd, reg2, reg1, reg0),
+		ASM_STW(reg2, stk, 12),
+		ASM_LWZ(reg2, stk, 0),
+		ASM_LWZ(reg1, stk, 4),
+		ASM_LWZ(reg0, stk, 8),
+		ASM_LWZ(3, stk, 12),
+		ASM_ADDI(1, stk, 24),
+		ASM_LWZ(stk, 1, -4),
+		ASM_BLR,
+	    };
+    	    unsigned long codecr[] =
+	    {
+		ASM_STW(stk, 1, -4),
+		ASM_ADDI(stk, 1, -24),
+		ASM_STW(3, stk, 12),
+		ASM_STW(4, stk, 16),
+		ASM_STW(reg0, stk, 8),
+		ASM_STW(reg1, stk, 4),
+		ASM_STW(reg2, stk, 0),
+		ASM_LWZ(reg1, stk, 12),
+		ASM_LWZ(reg0, stk, 16),
+		ASM_12X(test->cmd, reg2, reg1, reg0) | BIT_C,
+		ASM_STW(reg2, stk, 12),
+		ASM_LWZ(reg2, stk, 0),
+		ASM_LWZ(reg1, stk, 4),
+		ASM_LWZ(reg0, stk, 8),
+		ASM_LWZ(3, stk, 12),
+		ASM_ADDI(1, stk, 24),
+		ASM_LWZ(stk, 1, -4),
+		ASM_BLR,
+	    };
+	    ulong res;
+	    ulong cr;
+
+	    if (ret == 0)
+	    {
+ 	    	cr = 0;
+	    	cpu_post_exec_22 (code, & cr, & res, test->op1, test->op2);
+
+	    	ret = res == test->res && cr == 0 ? 0 : -1;
+
+	    	if (ret != 0)
+	    	{
+	            post_log ("Error at threex test %d !\n", i);
+	    	}
+	    }
+
+	    if (ret == 0)
+	    {
+	    	cpu_post_exec_22 (codecr, & cr, & res, test->op1, test->op2);
+
+	    	ret = res == test->res &&
+		      (cr & 0xe0000000) == cpu_post_makecr (res) ? 0 : -1;
+
+	    	if (ret != 0)
+	    	{
+	            post_log ("Error at threex test %d !\n", i);
+	        }
+	    }
+	}
+    }
+
+    if (flag)
+    	enable_interrupts();
+
+    return ret;
+}
+
+#endif
+#endif
diff --git a/post/cpu/two.c b/post/cpu/two.c
new file mode 100644
index 0000000..6075714
--- /dev/null
+++ b/post/cpu/two.c
@@ -0,0 +1,176 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/*
+ * CPU test
+ * Binary instructions		instr rD,rA
+ *
+ * Logic instructions:		neg
+ * Arithmetic instructions:	addme, addze, subfme, subfze
+
+ * The test contains a pre-built table of instructions, operands and
+ * expected results. For each table entry, the test will cyclically use
+ * different sets of operand registers and result registers.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include "cpu_asm.h"
+
+#if CONFIG_POST & CFG_POST_CPU
+
+extern void cpu_post_exec_21 (ulong *code, ulong *cr, ulong *res, ulong op1);
+extern ulong cpu_post_makecr (long v);
+
+static struct cpu_post_two_s
+{
+    ulong cmd;
+    ulong op;
+    ulong res;
+} cpu_post_two_table[] =
+{
+    {
+    	OP_NEG,
+	3,
+	-3
+    },
+    {
+    	OP_NEG,
+	5,
+	-5
+    },
+    {
+        OP_ADDME,
+	6,
+	5
+    },
+    {
+        OP_ADDZE,
+	5,
+	5
+    },
+    {
+        OP_SUBFME,
+	6,
+	~6 - 1
+    },
+    {
+        OP_SUBFZE,
+	5,
+	~5
+    },
+};
+static unsigned int cpu_post_two_size =
+    sizeof (cpu_post_two_table) / sizeof (struct cpu_post_two_s);
+
+int cpu_post_test_two (void)
+{
+    int ret = 0;
+    unsigned int i, reg;
+    int flag = disable_interrupts();
+
+    for (i = 0; i < cpu_post_two_size && ret == 0; i++)
+    {
+	struct cpu_post_two_s *test = cpu_post_two_table + i;
+
+	for (reg = 0; reg < 32 && ret == 0; reg++)
+	{
+	    unsigned int reg0 = (reg + 0) % 32;
+	    unsigned int reg1 = (reg + 1) % 32;
+	    unsigned int stk = reg < 16 ? 31 : 15;
+    	    unsigned long code[] =
+	    {
+		ASM_STW(stk, 1, -4),
+		ASM_ADDI(stk, 1, -16),
+		ASM_STW(3, stk, 8),
+		ASM_STW(reg0, stk, 4),
+		ASM_STW(reg1, stk, 0),
+		ASM_LWZ(reg0, stk, 8),
+		ASM_11(test->cmd, reg1, reg0),
+		ASM_STW(reg1, stk, 8),
+		ASM_LWZ(reg1, stk, 0),
+		ASM_LWZ(reg0, stk, 4),
+		ASM_LWZ(3, stk, 8),
+		ASM_ADDI(1, stk, 16),
+		ASM_LWZ(stk, 1, -4),
+		ASM_BLR,
+	    };
+    	    unsigned long codecr[] =
+	    {
+		ASM_STW(stk, 1, -4),
+		ASM_ADDI(stk, 1, -16),
+		ASM_STW(3, stk, 8),
+		ASM_STW(reg0, stk, 4),
+		ASM_STW(reg1, stk, 0),
+		ASM_LWZ(reg0, stk, 8),
+		ASM_11(test->cmd, reg1, reg0) | BIT_C,
+		ASM_STW(reg1, stk, 8),
+		ASM_LWZ(reg1, stk, 0),
+		ASM_LWZ(reg0, stk, 4),
+		ASM_LWZ(3, stk, 8),
+		ASM_ADDI(1, stk, 16),
+		ASM_LWZ(stk, 1, -4),
+		ASM_BLR,
+	    };
+	    ulong res;
+	    ulong cr;
+
+	    if (ret == 0)
+	    {
+ 	    	cr = 0;
+	    	cpu_post_exec_21 (code, & cr, & res, test->op);
+
+	    	ret = res == test->res && cr == 0 ? 0 : -1;
+
+	    	if (ret != 0)
+	    	{
+	            post_log ("Error at two test %d !\n", i);
+	    	}
+	    }
+
+	    if (ret == 0)
+	    {
+	    	cpu_post_exec_21 (codecr, & cr, & res, test->op);
+
+	    	ret = res == test->res &&
+		      (cr & 0xe0000000) == cpu_post_makecr (res) ? 0 : -1;
+
+	    	if (ret != 0)
+	    	{
+	            post_log ("Error at two test %d !\n", i);
+	        }
+	    }
+	}
+    }
+
+    if (flag)
+    	enable_interrupts();
+
+    return ret;
+}
+
+#endif
+#endif
diff --git a/post/cpu/twox.c b/post/cpu/twox.c
new file mode 100644
index 0000000..48d9954
--- /dev/null
+++ b/post/cpu/twox.c
@@ -0,0 +1,176 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/*
+ * CPU test
+ * Binary instructions		instr rA,rS
+ *
+ * Logic instructions:		cntlzw
+ * Arithmetic instructions:	extsb, extsh
+
+ * The test contains a pre-built table of instructions, operands and
+ * expected results. For each table entry, the test will cyclically use
+ * different sets of operand registers and result registers.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include "cpu_asm.h"
+
+#if CONFIG_POST & CFG_POST_CPU
+
+extern void cpu_post_exec_21 (ulong *code, ulong *cr, ulong *res, ulong op1);
+extern ulong cpu_post_makecr (long v);
+
+static struct cpu_post_twox_s
+{
+    ulong cmd;
+    ulong op;
+    ulong res;
+} cpu_post_twox_table[] =
+{
+    {
+    	OP_EXTSB,
+	3,
+	3
+    },
+    {
+    	OP_EXTSB,
+	0xff,
+	-1
+    },
+    {
+    	OP_EXTSH,
+	3,
+	3
+    },
+    {
+    	OP_EXTSH,
+	0xff,
+	0xff
+    },
+    {
+    	OP_EXTSH,
+	0xffff,
+	-1
+    },
+    {
+    	OP_CNTLZW,
+	0x000fffff,
+	12
+    },
+};
+static unsigned int cpu_post_twox_size =
+    sizeof (cpu_post_twox_table) / sizeof (struct cpu_post_twox_s);
+
+int cpu_post_test_twox (void)
+{
+    int ret = 0;
+    unsigned int i, reg;
+    int flag = disable_interrupts();
+
+    for (i = 0; i < cpu_post_twox_size && ret == 0; i++)
+    {
+	struct cpu_post_twox_s *test = cpu_post_twox_table + i;
+
+	for (reg = 0; reg < 32 && ret == 0; reg++)
+	{
+	    unsigned int reg0 = (reg + 0) % 32;
+	    unsigned int reg1 = (reg + 1) % 32;
+	    unsigned int stk = reg < 16 ? 31 : 15;
+    	    unsigned long code[] =
+	    {
+		ASM_STW(stk, 1, -4),
+		ASM_ADDI(stk, 1, -16),
+		ASM_STW(3, stk, 8),
+		ASM_STW(reg0, stk, 4),
+		ASM_STW(reg1, stk, 0),
+		ASM_LWZ(reg0, stk, 8),
+		ASM_11X(test->cmd, reg1, reg0),
+		ASM_STW(reg1, stk, 8),
+		ASM_LWZ(reg1, stk, 0),
+		ASM_LWZ(reg0, stk, 4),
+		ASM_LWZ(3, stk, 8),
+		ASM_ADDI(1, stk, 16),
+		ASM_LWZ(stk, 1, -4),
+		ASM_BLR,
+	    };
+    	    unsigned long codecr[] =
+	    {
+		ASM_STW(stk, 1, -4),
+		ASM_ADDI(stk, 1, -16),
+		ASM_STW(3, stk, 8),
+		ASM_STW(reg0, stk, 4),
+		ASM_STW(reg1, stk, 0),
+		ASM_LWZ(reg0, stk, 8),
+		ASM_11X(test->cmd, reg1, reg0) | BIT_C,
+		ASM_STW(reg1, stk, 8),
+		ASM_LWZ(reg1, stk, 0),
+		ASM_LWZ(reg0, stk, 4),
+		ASM_LWZ(3, stk, 8),
+		ASM_ADDI(1, stk, 16),
+		ASM_LWZ(stk, 1, -4),
+		ASM_BLR,
+	    };
+	    ulong res;
+	    ulong cr;
+
+	    if (ret == 0)
+	    {
+ 	    	cr = 0;
+	    	cpu_post_exec_21 (code, & cr, & res, test->op);
+
+	    	ret = res == test->res && cr == 0 ? 0 : -1;
+
+	    	if (ret != 0)
+	    	{
+	            post_log ("Error at twox test %d !\n", i);
+	    	}
+	    }
+
+	    if (ret == 0)
+	    {
+	    	cpu_post_exec_21 (codecr, & cr, & res, test->op);
+
+	    	ret = res == test->res &&
+		      (cr & 0xe0000000) == cpu_post_makecr (res) ? 0 : -1;
+
+	    	if (ret != 0)
+	    	{
+	            post_log ("Error at twox test %d !\n", i);
+	        }
+	    }
+	}
+    }
+
+    if (flag)
+    	enable_interrupts();
+
+    return ret;
+}
+
+#endif
+#endif
diff --git a/post/ether.c b/post/ether.c
new file mode 100644
index 0000000..5b42ca7
--- /dev/null
+++ b/post/ether.c
@@ -0,0 +1,646 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/*
+ * Ethernet test
+ *
+ * The Serial Communication Controllers (SCC) listed in ctlr_list array below
+ * are tested in the loopback ethernet mode.
+ * The controllers are configured accordingly and several packets
+ * are transmitted. The configurable test parameters are:
+ *   MIN_PACKET_LENGTH - minimum size of packet to transmit
+ *   MAX_PACKET_LENGTH - maximum size of packet to transmit
+ *   TEST_NUM - number of tests
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+
+#if defined(CONFIG_8xx)
+#include <commproc.h>
+#elif defined(CONFIG_MPC8260)
+#include <asm/cpm_8260.h>
+#else
+#error "Apparently a bad configuration, please fix."
+#endif
+
+#include <command.h>
+#include <net.h>
+
+#if CONFIG_POST & CFG_POST_ETHER
+
+#define MIN_PACKET_LENGTH	64
+#define MAX_PACKET_LENGTH	256
+#define TEST_NUM		1
+
+#define CTLR_SCC 0
+
+extern void spi_init_f (void);
+extern void spi_init_r (void);
+
+/* The list of controllers to test */
+#if defined(CONFIG_MPC823)
+static int ctlr_list[][2] = { {CTLR_SCC, 1} };
+#else
+static int ctlr_list[][2] = { };
+#endif
+
+#define CTRL_LIST_SIZE (sizeof(ctlr_list) / sizeof(ctlr_list[0]))
+
+static struct {
+	void (*init) (int index);
+	int (*send) (int index, volatile void *packet, int length);
+	int (*recv) (int index, void *packet, int length);
+} ctlr_proc[1];
+
+static char *ctlr_name[1] = { "SCC" };
+
+static int used_by_uart[1] = { -1 };
+static int used_by_ether[1] = { -1 };
+
+/* Ethernet Transmit and Receive Buffers */
+#define DBUF_LENGTH  1520
+
+#define TX_BUF_CNT 2
+
+#define TOUT_LOOP 100
+
+static char txbuf[DBUF_LENGTH];
+
+static uint rxIdx;		/* index of the current RX buffer */
+static uint txIdx;		/* index of the current TX buffer */
+
+/*
+  * SCC Ethernet Tx and Rx buffer descriptors allocated at the
+  *  immr->udata_bd address on Dual-Port RAM
+  * Provide for Double Buffering
+  */
+
+typedef volatile struct CommonBufferDescriptor {
+	cbd_t rxbd[PKTBUFSRX];		/* Rx BD */
+	cbd_t txbd[TX_BUF_CNT];		/* Tx BD */
+} RTXBD;
+
+static RTXBD *rtx;
+
+  /*
+   * SCC callbacks
+   */
+
+static void scc_init (int scc_index)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	bd_t *bd = gd->bd;
+
+	static int proff[] =
+			{ PROFF_SCC1, PROFF_SCC2, PROFF_SCC3, PROFF_SCC4 };
+	static unsigned int cpm_cr[] =
+			{ CPM_CR_CH_SCC1, CPM_CR_CH_SCC2, CPM_CR_CH_SCC3,
+CPM_CR_CH_SCC4 };
+
+	int i;
+	scc_enet_t *pram_ptr;
+
+	volatile immap_t *immr = (immap_t *) CFG_IMMR;
+
+	immr->im_cpm.cp_scc[scc_index].scc_gsmrl &=
+			~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
+
+#if defined(CONFIG_FADS)
+#if defined(CONFIG_MPC860T)
+	/* The FADS860T doesn't use the MODEM_EN or DATA_VOICE signals. */
+	*((uint *) BCSR4) &= ~BCSR4_ETHLOOP;
+	*((uint *) BCSR4) |= BCSR4_TFPLDL | BCSR4_TPSQEL;
+	*((uint *) BCSR1) &= ~BCSR1_ETHEN;
+#else
+	*((uint *) BCSR4) &= ~(BCSR4_ETHLOOP | BCSR4_MODEM_EN);
+	*((uint *) BCSR4) |= BCSR4_TFPLDL | BCSR4_TPSQEL | BCSR4_DATA_VOICE;
+	*((uint *) BCSR1) &= ~BCSR1_ETHEN;
+#endif
+#endif
+
+	pram_ptr = (scc_enet_t *) & (immr->im_cpm.cp_dparam[proff[scc_index]]);
+
+	rxIdx = 0;
+	txIdx = 0;
+
+#ifdef CFG_ALLOC_DPRAM
+	rtx = (RTXBD *) (immr->im_cpm.cp_dpmem +
+					 dpram_alloc_align (sizeof (RTXBD), 8));
+#else
+	rtx = (RTXBD *) (immr->im_cpm.cp_dpmem + CPM_SCC_BASE);
+#endif
+
+#if 0
+
+#if (defined(PA_ENET_RXD) && defined(PA_ENET_TXD))
+	/* Configure port A pins for Txd and Rxd.
+	 */
+	immr->im_ioport.iop_papar |= (PA_ENET_RXD | PA_ENET_TXD);
+	immr->im_ioport.iop_padir &= ~(PA_ENET_RXD | PA_ENET_TXD);
+	immr->im_ioport.iop_paodr &= ~PA_ENET_TXD;
+#elif (defined(PB_ENET_RXD) && defined(PB_ENET_TXD))
+	/* Configure port B pins for Txd and Rxd.
+	 */
+	immr->im_cpm.cp_pbpar |= (PB_ENET_RXD | PB_ENET_TXD);
+	immr->im_cpm.cp_pbdir &= ~(PB_ENET_RXD | PB_ENET_TXD);
+	immr->im_cpm.cp_pbodr &= ~PB_ENET_TXD;
+#else
+#error Configuration Error: exactly ONE of PA_ENET_[RT]XD, PB_ENET_[RT]XD must be defined
+#endif
+
+#if defined(PC_ENET_LBK)
+	/* Configure port C pins to disable External Loopback
+	 */
+	immr->im_ioport.iop_pcpar &= ~PC_ENET_LBK;
+	immr->im_ioport.iop_pcdir |= PC_ENET_LBK;
+	immr->im_ioport.iop_pcso &= ~PC_ENET_LBK;
+	immr->im_ioport.iop_pcdat &= ~PC_ENET_LBK;	/* Disable Loopback */
+#endif /* PC_ENET_LBK */
+
+	/* Configure port C pins to enable CLSN and RENA.
+	 */
+	immr->im_ioport.iop_pcpar &= ~(PC_ENET_CLSN | PC_ENET_RENA);
+	immr->im_ioport.iop_pcdir &= ~(PC_ENET_CLSN | PC_ENET_RENA);
+	immr->im_ioport.iop_pcso |= (PC_ENET_CLSN | PC_ENET_RENA);
+
+	/* Configure port A for TCLK and RCLK.
+	 */
+	immr->im_ioport.iop_papar |= (PA_ENET_TCLK | PA_ENET_RCLK);
+	immr->im_ioport.iop_padir &= ~(PA_ENET_TCLK | PA_ENET_RCLK);
+
+	/*
+	 * Configure Serial Interface clock routing -- see section 16.7.5.3
+	 * First, clear all SCC bits to zero, then set the ones we want.
+	 */
+
+	immr->im_cpm.cp_sicr &= ~SICR_ENET_MASK;
+	immr->im_cpm.cp_sicr |= SICR_ENET_CLKRT;
+#else
+	/*
+	 * SCC2 receive clock is BRG2
+	 * SCC2 transmit clock is BRG3
+	 */
+	immr->im_cpm.cp_brgc2 = 0x0001000C;
+	immr->im_cpm.cp_brgc3 = 0x0001000C;
+
+	immr->im_cpm.cp_sicr &= ~0x00003F00;
+	immr->im_cpm.cp_sicr |=  0x00000a00;
+#endif /* 0 */
+
+
+	/*
+	 * Initialize SDCR -- see section 16.9.23.7
+	 * SDMA configuration register
+	 */
+	immr->im_siu_conf.sc_sdcr = 0x01;
+
+
+	/*
+	 * Setup SCC Ethernet Parameter RAM
+	 */
+
+	pram_ptr->sen_genscc.scc_rfcr = 0x18;	/* Normal Operation and Mot byte ordering */
+	pram_ptr->sen_genscc.scc_tfcr = 0x18;	/* Mot byte ordering, Normal access */
+
+	pram_ptr->sen_genscc.scc_mrblr = DBUF_LENGTH;	/* max. ET package len 1520 */
+
+	pram_ptr->sen_genscc.scc_rbase = (unsigned int) (&rtx->rxbd[0]);	/* Set RXBD tbl start at Dual Port */
+	pram_ptr->sen_genscc.scc_tbase = (unsigned int) (&rtx->txbd[0]);	/* Set TXBD tbl start at Dual Port */
+
+	/*
+	 * Setup Receiver Buffer Descriptors (13.14.24.18)
+	 * Settings:
+	 *     Empty, Wrap
+	 */
+
+	for (i = 0; i < PKTBUFSRX; i++) {
+		rtx->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
+		rtx->rxbd[i].cbd_datlen = 0;	/* Reset */
+		rtx->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i];
+	}
+
+	rtx->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
+
+	/*
+	 * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
+	 * Settings:
+	 *    Add PADs to Short FRAMES, Wrap, Last, Tx CRC
+	 */
+
+	for (i = 0; i < TX_BUF_CNT; i++) {
+		rtx->txbd[i].cbd_sc =
+				(BD_ENET_TX_PAD | BD_ENET_TX_LAST | BD_ENET_TX_TC);
+		rtx->txbd[i].cbd_datlen = 0;	/* Reset */
+		rtx->txbd[i].cbd_bufaddr = (uint) (&txbuf[0]);
+	}
+
+	rtx->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
+
+	/*
+	 * Enter Command:  Initialize Rx Params for SCC
+	 */
+
+	do {				/* Spin until ready to issue command    */
+		__asm__ ("eieio");
+	} while (immr->im_cpm.cp_cpcr & CPM_CR_FLG);
+	/* Issue command */
+	immr->im_cpm.cp_cpcr =
+			((CPM_CR_INIT_RX << 8) | (cpm_cr[scc_index] << 4) |
+			 CPM_CR_FLG);
+	do {				/* Spin until command processed     */
+		__asm__ ("eieio");
+	} while (immr->im_cpm.cp_cpcr & CPM_CR_FLG);
+
+	/*
+	 * Ethernet Specific Parameter RAM
+	 *     see table 13-16, pg. 660,
+	 *     pg. 681 (example with suggested settings)
+	 */
+
+	pram_ptr->sen_cpres = ~(0x0);	/* Preset CRC */
+	pram_ptr->sen_cmask = 0xdebb20e3;	/* Constant Mask for CRC */
+	pram_ptr->sen_crcec = 0x0;	/* Error Counter CRC (unused) */
+	pram_ptr->sen_alec = 0x0;	/* Alignment Error Counter (unused) */
+	pram_ptr->sen_disfc = 0x0;	/* Discard Frame Counter (unused) */
+	pram_ptr->sen_pads = 0x8888;	/* Short Frame PAD Characters */
+
+	pram_ptr->sen_retlim = 15;	/* Retry Limit Threshold */
+	pram_ptr->sen_maxflr = 1518;	/* MAX Frame Length Register */
+	pram_ptr->sen_minflr = 64;	/* MIN Frame Length Register */
+
+	pram_ptr->sen_maxd1 = DBUF_LENGTH;	/* MAX DMA1 Length Register */
+	pram_ptr->sen_maxd2 = DBUF_LENGTH;	/* MAX DMA2 Length Register */
+
+	pram_ptr->sen_gaddr1 = 0x0;	/* Group Address Filter 1 (unused) */
+	pram_ptr->sen_gaddr2 = 0x0;	/* Group Address Filter 2 (unused) */
+	pram_ptr->sen_gaddr3 = 0x0;	/* Group Address Filter 3 (unused) */
+	pram_ptr->sen_gaddr4 = 0x0;	/* Group Address Filter 4 (unused) */
+
+#define ea bd->bi_enetaddr
+	pram_ptr->sen_paddrh = (ea[5] << 8) + ea[4];
+	pram_ptr->sen_paddrm = (ea[3] << 8) + ea[2];
+	pram_ptr->sen_paddrl = (ea[1] << 8) + ea[0];
+#undef ea
+
+	pram_ptr->sen_pper = 0x0;	/* Persistence (unused) */
+	pram_ptr->sen_iaddr1 = 0x0;	/* Individual Address Filter 1 (unused) */
+	pram_ptr->sen_iaddr2 = 0x0;	/* Individual Address Filter 2 (unused) */
+	pram_ptr->sen_iaddr3 = 0x0;	/* Individual Address Filter 3 (unused) */
+	pram_ptr->sen_iaddr4 = 0x0;	/* Individual Address Filter 4 (unused) */
+	pram_ptr->sen_taddrh = 0x0;	/* Tmp Address (MSB) (unused) */
+	pram_ptr->sen_taddrm = 0x0;	/* Tmp Address (unused) */
+	pram_ptr->sen_taddrl = 0x0;	/* Tmp Address (LSB) (unused) */
+
+	/*
+	 * Enter Command:  Initialize Tx Params for SCC
+	 */
+
+	do {				/* Spin until ready to issue command    */
+		__asm__ ("eieio");
+	} while (immr->im_cpm.cp_cpcr & CPM_CR_FLG);
+	/* Issue command */
+	immr->im_cpm.cp_cpcr =
+			((CPM_CR_INIT_TX << 8) | (cpm_cr[scc_index] << 4) |
+			 CPM_CR_FLG);
+	do {				/* Spin until command processed     */
+		__asm__ ("eieio");
+	} while (immr->im_cpm.cp_cpcr & CPM_CR_FLG);
+
+	/*
+	 * Mask all Events in SCCM - we use polling mode
+	 */
+	immr->im_cpm.cp_scc[scc_index].scc_sccm = 0;
+
+	/*
+	 * Clear Events in SCCE -- Clear bits by writing 1's
+	 */
+
+	immr->im_cpm.cp_scc[scc_index].scc_scce = ~(0x0);
+
+
+	/*
+	 * Initialize GSMR High 32-Bits
+	 * Settings:  Normal Mode
+	 */
+
+	immr->im_cpm.cp_scc[scc_index].scc_gsmrh = 0;
+
+	/*
+	 * Initialize GSMR Low 32-Bits, but do not Enable Transmit/Receive
+	 * Settings:
+	 *     TCI = Invert
+	 *     TPL =  48 bits
+	 *     TPP = Repeating 10's
+	 *     LOOP = Loopback
+	 *     MODE = Ethernet
+	 */
+
+	immr->im_cpm.cp_scc[scc_index].scc_gsmrl = (SCC_GSMRL_TCI |
+												SCC_GSMRL_TPL_48 |
+												SCC_GSMRL_TPP_10 |
+												SCC_GSMRL_DIAG_LOOP |
+												SCC_GSMRL_MODE_ENET);
+
+	/*
+	 * Initialize the DSR -- see section 13.14.4 (pg. 513) v0.4
+	 */
+
+	immr->im_cpm.cp_scc[scc_index].scc_dsr = 0xd555;
+
+	/*
+	 * Initialize the PSMR
+	 * Settings:
+	 *  CRC = 32-Bit CCITT
+	 *  NIB = Begin searching for SFD 22 bits after RENA
+	 *  LPB = Loopback Enable (Needed when FDE is set)
+	 */
+	immr->im_cpm.cp_scc[scc_index].scc_psmr = SCC_PSMR_ENCRC |
+			SCC_PSMR_NIB22 | SCC_PSMR_LPB;
+
+#if 0
+	/*
+	 * Configure Ethernet TENA Signal
+	 */
+
+#if (defined(PC_ENET_TENA) && !defined(PB_ENET_TENA))
+	immr->im_ioport.iop_pcpar |= PC_ENET_TENA;
+	immr->im_ioport.iop_pcdir &= ~PC_ENET_TENA;
+#elif (defined(PB_ENET_TENA) && !defined(PC_ENET_TENA))
+	immr->im_cpm.cp_pbpar |= PB_ENET_TENA;
+	immr->im_cpm.cp_pbdir |= PB_ENET_TENA;
+#else
+#error Configuration Error: exactly ONE of PB_ENET_TENA, PC_ENET_TENA must be defined
+#endif
+
+#if defined(CONFIG_ADS) && defined(CONFIG_MPC860)
+	/*
+	 * Port C is used to control the PHY,MC68160.
+	 */
+	immr->im_ioport.iop_pcdir |=
+			(PC_ENET_ETHLOOP | PC_ENET_TPFLDL | PC_ENET_TPSQEL);
+
+	immr->im_ioport.iop_pcdat |= PC_ENET_TPFLDL;
+	immr->im_ioport.iop_pcdat &= ~(PC_ENET_ETHLOOP | PC_ENET_TPSQEL);
+	*((uint *) BCSR1) &= ~BCSR1_ETHEN;
+#endif /* MPC860ADS */
+
+#if defined(CONFIG_AMX860)
+	/*
+	 * Port B is used to control the PHY,MC68160.
+	 */
+	immr->im_cpm.cp_pbdir |=
+			(PB_ENET_ETHLOOP | PB_ENET_TPFLDL | PB_ENET_TPSQEL);
+
+	immr->im_cpm.cp_pbdat |= PB_ENET_TPFLDL;
+	immr->im_cpm.cp_pbdat &= ~(PB_ENET_ETHLOOP | PB_ENET_TPSQEL);
+
+	immr->im_ioport.iop_pddir |= PD_ENET_ETH_EN;
+	immr->im_ioport.iop_pddat &= ~PD_ENET_ETH_EN;
+#endif /* AMX860 */
+
+#endif /* 0 */
+
+#ifdef CONFIG_RPXCLASSIC
+	*((uchar *) BCSR0) &= ~BCSR0_ETHLPBK;
+	*((uchar *) BCSR0) |= (BCSR0_ETHEN | BCSR0_COLTEST | BCSR0_FULLDPLX);
+#endif
+
+#ifdef CONFIG_RPXLITE
+	*((uchar *) BCSR0) |= BCSR0_ETHEN;
+#endif
+
+#ifdef CONFIG_MBX
+	board_ether_init ();
+#endif
+
+	/*
+	 * Set the ENT/ENR bits in the GSMR Low -- Enable Transmit/Receive
+	 */
+
+	immr->im_cpm.cp_scc[scc_index].scc_gsmrl |=
+			(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
+
+	/*
+	 * Work around transmit problem with first eth packet
+	 */
+#if defined (CONFIG_FADS)
+	udelay (10000);				/* wait 10 ms */
+#elif defined (CONFIG_AMX860) || defined(CONFIG_RPXCLASSIC)
+	udelay (100000);			/* wait 100 ms */
+#endif
+}
+
+static int scc_send (int index, volatile void *packet, int length)
+{
+	int i, j = 0;
+
+	while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j < TOUT_LOOP)) {
+		udelay (1);		/* will also trigger Wd if needed */
+		j++;
+	}
+	if (j >= TOUT_LOOP)
+		printf ("TX not ready\n");
+	rtx->txbd[txIdx].cbd_bufaddr = (uint) packet;
+	rtx->txbd[txIdx].cbd_datlen = length;
+	rtx->txbd[txIdx].cbd_sc |=
+			(BD_ENET_TX_READY | BD_ENET_TX_LAST | BD_ENET_TX_WRAP);
+	while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j < TOUT_LOOP)) {
+		udelay (1);		/* will also trigger Wd if needed */
+		j++;
+	}
+	if (j >= TOUT_LOOP)
+		printf ("TX timeout\n");
+	i = (rtx->txbd[txIdx].
+		 cbd_sc & BD_ENET_TX_STATS) /* return only status bits */ ;
+	return i;
+}
+
+static int scc_recv (int index, void *packet, int max_length)
+{
+	int length = -1;
+
+	if (rtx->rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
+		goto Done;		/* nothing received */
+	}
+
+	if (!(rtx->rxbd[rxIdx].cbd_sc & 0x003f)) {
+		length = rtx->rxbd[rxIdx].cbd_datlen - 4;
+		memcpy (packet,
+				(void *) (NetRxPackets[rxIdx]),
+				length < max_length ? length : max_length);
+	}
+
+	/* Give the buffer back to the SCC. */
+	rtx->rxbd[rxIdx].cbd_datlen = 0;
+
+	/* wrap around buffer index when necessary */
+	if ((rxIdx + 1) >= PKTBUFSRX) {
+		rtx->rxbd[PKTBUFSRX - 1].cbd_sc =
+				(BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY);
+		rxIdx = 0;
+	} else {
+		rtx->rxbd[rxIdx].cbd_sc = BD_ENET_RX_EMPTY;
+		rxIdx++;
+	}
+
+  Done:
+	return length;
+}
+
+  /*
+   * Test routines
+   */
+
+static void packet_fill (char *packet, int length)
+{
+	char c = (char) length;
+	int i;
+
+	packet[0] = 0xFF;
+	packet[1] = 0xFF;
+	packet[2] = 0xFF;
+	packet[3] = 0xFF;
+	packet[4] = 0xFF;
+	packet[5] = 0xFF;
+
+	for (i = 6; i < length; i++) {
+		packet[i] = c++;
+	}
+}
+
+static int packet_check (char *packet, int length)
+{
+	char c = (char) length;
+	int i;
+
+	for (i = 6; i < length; i++) {
+		if (packet[i] != c++)
+			return -1;
+	}
+
+	return 0;
+}
+
+static int test_ctlr (int ctlr, int index)
+{
+	int res = -1;
+	char packet_send[MAX_PACKET_LENGTH];
+	char packet_recv[MAX_PACKET_LENGTH];
+	int length;
+	int i;
+	int l;
+
+	ctlr_proc[ctlr].init (index);
+
+	for (i = 0; i < TEST_NUM; i++) {
+		for (l = MIN_PACKET_LENGTH; l <= MAX_PACKET_LENGTH; l++) {
+			packet_fill (packet_send, l);
+
+			ctlr_proc[ctlr].send (index, packet_send, l);
+
+			length = ctlr_proc[ctlr].recv (index, packet_recv,
+							MAX_PACKET_LENGTH);
+
+			if (length != l || packet_check (packet_recv, length) < 0) {
+				goto Done;
+			}
+		}
+	}
+
+	res = 0;
+
+  Done:
+
+#if !defined(CONFIG_8xx_CONS_NONE)
+	if (used_by_uart[ctlr] == index) {
+		serial_init ();
+	}
+#endif
+
+#if defined(SCC_ENET)
+	if (used_by_ether[ctlr] == index) {
+		DECLARE_GLOBAL_DATA_PTR;
+
+		eth_init (gd->bd);
+	}
+#endif
+
+	/*
+	 * SCC2 Ethernet parameter RAM space overlaps
+	 * the SPI parameter RAM space. So we need to restore
+	 * the SPI configuration after SCC2 ethernet test.
+	 */
+#if defined(CONFIG_SPI)
+	if (ctlr == CTLR_SCC && index == 1) {
+		spi_init_f ();
+		spi_init_r ();
+	}
+#endif
+
+	if (res != 0) {
+		post_log ("ethernet %s%d test failed\n", ctlr_name[ctlr],
+				  index + 1);
+	}
+
+	return res;
+}
+
+int ether_post_test (int flags)
+{
+	int res = 0;
+	int i;
+
+#if defined(CONFIG_8xx_CONS_SCC1)
+	used_by_uart[CTLR_SCC] = 0;
+#elif defined(CONFIG_8xx_CONS_SCC2)
+	used_by_uart[CTLR_SCC] = 1;
+#elif defined(CONFIG_8xx_CONS_SCC3)
+	used_by_uart[CTLR_SCC] = 2;
+#elif defined(CONFIG_8xx_CONS_SCC4)
+	used_by_uart[CTLR_SCC] = 3;
+#endif
+
+#if defined(SCC_ENET)
+	used_by_ether[CTLR_SCC] = SCC_ENET;
+#endif
+
+	ctlr_proc[CTLR_SCC].init = scc_init;
+	ctlr_proc[CTLR_SCC].send = scc_send;
+	ctlr_proc[CTLR_SCC].recv = scc_recv;
+
+	for (i = 0; i < CTRL_LIST_SIZE; i++) {
+		if (test_ctlr (ctlr_list[i][0], ctlr_list[i][1]) != 0) {
+			res = -1;
+		}
+	}
+
+	return res;
+}
+
+#endif /* CONFIG_POST & CFG_POST_ETHER */
+
+#endif /* CONFIG_POST */
diff --git a/post/memory.c b/post/memory.c
new file mode 100644
index 0000000..7d55a6d
--- /dev/null
+++ b/post/memory.c
@@ -0,0 +1,481 @@
+/*
+ * (C) Copyright 2002
+ * 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>
+
+/* Memory test
+ *
+ * General observations:
+ * o The recommended test sequence is to test the data lines: if they are
+ *   broken, nothing else will work properly.  Then test the address
+ *   lines.  Finally, test the cells in the memory now that the test
+ *   program knows that the address and data lines work properly.
+ *   This sequence also helps isolate and identify what is faulty.
+ *
+ * o For the address line test, it is a good idea to use the base
+ *   address of the lowest memory location, which causes a '1' bit to
+ *   walk through a field of zeros on the address lines and the highest
+ *   memory location, which causes a '0' bit to walk through a field of
+ *   '1's on the address line.
+ *
+ * o Floating buses can fool memory tests if the test routine writes
+ *   a value and then reads it back immediately.  The problem is, the
+ *   write will charge the residual capacitance on the data bus so the
+ *   bus retains its state briefely.  When the test program reads the
+ *   value back immediately, the capacitance of the bus can allow it
+ *   to read back what was written, even though the memory circuitry
+ *   is broken.  To avoid this, the test program should write a test
+ *   pattern to the target location, write a different pattern elsewhere
+ *   to charge the residual capacitance in a differnt manner, then read
+ *   the target location back.
+ *
+ * o Always read the target location EXACTLY ONCE and save it in a local
+ *   variable.  The problem with reading the target location more than
+ *   once is that the second and subsequent reads may work properly,
+ *   resulting in a failed test that tells the poor technician that
+ *   "Memory error at 00000000, wrote aaaaaaaa, read aaaaaaaa" which
+ *   doesn't help him one bit and causes puzzled phone calls.  Been there,
+ *   done that.
+ *
+ * Data line test:
+ * ---------------
+ * This tests data lines for shorts and opens by forcing adjacent data
+ * to opposite states. Because the data lines could be routed in an
+ * arbitrary manner the must ensure test patterns ensure that every case
+ * is tested. By using the following series of binary patterns every
+ * combination of adjacent bits is test regardless of routing.
+ *
+ *     ...101010101010101010101010
+ *     ...110011001100110011001100
+ *     ...111100001111000011110000
+ *     ...111111110000000011111111
+ *
+ * Carrying this out, gives us six hex patterns as follows:
+ *
+ *     0xaaaaaaaaaaaaaaaa
+ *     0xcccccccccccccccc
+ *     0xf0f0f0f0f0f0f0f0
+ *     0xff00ff00ff00ff00
+ *     0xffff0000ffff0000
+ *     0xffffffff00000000
+ *
+ * To test for short and opens to other signals on our boards, we
+ * simply test with the 1's complemnt of the paterns as well, resulting
+ * in twelve patterns total.
+ *
+ * After writing a test pattern. a special pattern 0x0123456789ABCDEF is
+ * written to a different address in case the data lines are floating.
+ * Thus, if a byte lane fails, you will see part of the special
+ * pattern in that byte lane when the test runs.  For example, if the
+ * xx__xxxxxxxxxxxx byte line fails, you will see aa23aaaaaaaaaaaa
+ * (for the 'a' test pattern).
+ *
+ * Address line test:
+ * ------------------
+ *  This function performs a test to verify that all the address lines
+ *  hooked up to the RAM work properly.  If there is an address line
+ *  fault, it usually shows up as two different locations in the address
+ *  map (related by the faulty address line) mapping to one physical
+ *  memory storage location.  The artifact that shows up is writing to
+ *  the first location "changes" the second location.
+ *
+ * To test all address lines, we start with the given base address and
+ * xor the address with a '1' bit to flip one address line.  For each
+ * test, we shift the '1' bit left to test the next address line.
+ *
+ * In the actual code, we start with address sizeof(ulong) since our
+ * test pattern we use is a ulong and thus, if we tried to test lower
+ * order address bits, it wouldn't work because our pattern would
+ * overwrite itself.
+ *
+ * Example for a 4 bit address space with the base at 0000:
+ *   0000 <- base
+ *   0001 <- test 1
+ *   0010 <- test 2
+ *   0100 <- test 3
+ *   1000 <- test 4
+ * Example for a 4 bit address space with the base at 0010:
+ *   0010 <- base
+ *   0011 <- test 1
+ *   0000 <- (below the base address, skipped)
+ *   0110 <- test 2
+ *   1010 <- test 3
+ *
+ * The test locations are successively tested to make sure that they are
+ * not "mirrored" onto the base address due to a faulty address line.
+ * Note that the base and each test location are related by one address
+ * line flipped.  Note that the base address need not be all zeros.
+ *
+ * Memory tests 1-4:
+ * -----------------
+ * These tests verify RAM using sequential writes and reads
+ * to/from RAM. There are several test cases that use different patterns to
+ * verify RAM. Each test case fills a region of RAM with one pattern and
+ * then reads the region back and compares its contents with the pattern.
+ * The following patterns are used:
+ *
+ *  1a) zero pattern (0x00000000)
+ *  1b) negative pattern (0xffffffff)
+ *  1c) checkerboard pattern (0x55555555)
+ *  1d) checkerboard pattern (0xaaaaaaaa)
+ *  2)  bit-flip pattern ((1 << (offset % 32))
+ *  3)  address pattern (offset)
+ *  4)  address pattern (~offset)
+ *
+ * Being run in normal mode, the test verifies only small 4Kb
+ * regions of RAM around each 1Mb boundary. For example, for 64Mb
+ * RAM the following areas are verified: 0x00000000-0x00000800,
+ * 0x000ff800-0x00100800, 0x001ff800-0x00200800, ..., 0x03fff800-
+ * 0x04000000. If the test is run in power-fail mode, it verifies
+ * the whole RAM.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include <watchdog.h>
+
+#if CONFIG_POST & CFG_POST_MEMORY
+
+/*
+ * Define INJECT_*_ERRORS for testing error detection in the presence of
+ * _good_ hardware.
+ */
+#undef  INJECT_DATA_ERRORS
+#undef  INJECT_ADDRESS_ERRORS
+
+#ifdef INJECT_DATA_ERRORS
+#warning "Injecting data line errors for testing purposes"
+#endif
+
+#ifdef INJECT_ADDRESS_ERRORS
+#warning "Injecting address line errors for testing purposes"
+#endif
+
+
+/*
+ * This function performs a double word move from the data at
+ * the source pointer to the location at the destination pointer.
+ * This is helpful for testing memory on processors which have a 64 bit
+ * wide data bus.
+ *
+ * On those PowerPC with FPU, use assembly and a floating point move:
+ * this does a 64 bit move.
+ *
+ * For other processors, let the compiler generate the best code it can.
+ */
+static void move64(unsigned long long *src, unsigned long long *dest)
+{
+#if defined(CONFIG_MPC8260) || defined(CONFIG_MPC824X)
+	asm ("lfd  0, 0(3)\n\t" /* fpr0	  =  *scr	*/
+	 "stfd 0, 0(4)"		/* *dest  =  fpr0	*/
+	 : : : "fr0" );		/* Clobbers fr0		*/
+    return;
+#else
+	*dest = *src;
+#endif
+}
+
+/*
+ * This is 64 bit wide test patterns.  Note that they reside in ROM
+ * (which presumably works) and the tests write them to RAM which may
+ * not work.
+ *
+ * The "otherpattern" is written to drive the data bus to values other
+ * than the test pattern.  This is for detecting floating bus lines.
+ *
+ */
+const static unsigned long long pattern[] = {
+    0xaaaaaaaaaaaaaaaa,
+    0xcccccccccccccccc,
+    0xf0f0f0f0f0f0f0f0,
+    0xff00ff00ff00ff00,
+    0xffff0000ffff0000,
+    0xffffffff00000000,
+    0x00000000ffffffff,
+    0x0000ffff0000ffff,
+    0x00ff00ff00ff00ff,
+    0x0f0f0f0f0f0f0f0f,
+    0x3333333333333333,
+    0x5555555555555555};
+const unsigned long long otherpattern = 0x0123456789abcdef;
+
+
+static int memory_post_dataline(unsigned long long * pmem)
+{
+	unsigned long long temp64;
+	int num_patterns = sizeof(pattern)/ sizeof(pattern[0]);
+	int i;
+	unsigned int hi, lo, pathi, patlo;
+	int ret = 0;
+
+	for ( i = 0; i < num_patterns; i++) {
+		move64((unsigned long long *)&(pattern[i]), pmem++);
+		/*
+		 * Put a different pattern on the data lines: otherwise they
+		 * may float long enough to read back what we wrote.
+		 */
+		move64((unsigned long long *)&otherpattern, pmem--);
+		move64(pmem, &temp64);
+
+#ifdef INJECT_DATA_ERRORS
+		temp64 ^= 0x00008000;
+#endif
+
+		if (temp64 != pattern[i]){
+			pathi = (pattern[i]>>32) & 0xffffffff;
+			patlo = pattern[i] & 0xffffffff;
+
+			hi = (temp64>>32) & 0xffffffff;
+			lo = temp64 & 0xffffffff;
+
+			post_log ("Memory (date line) error at %08x, "
+				  "wrote %08x%08x, read %08x%08x !\n",
+					  pmem, pathi, patlo, hi, lo);
+			ret = -1;
+		}
+	}
+	return ret;
+}
+
+static int memory_post_addrline(ulong *testaddr, ulong *base, ulong size)
+{
+	ulong *target;
+	ulong *end;
+	ulong readback;
+	ulong xor;
+	int   ret = 0;
+
+	end = base + size;
+	xor = 0;
+	for(xor = sizeof(ulong); xor > 0; xor <<= 1) {
+		target = (ulong *)((ulong)testaddr ^ xor);
+		if((target >= base) && (target < end)) {
+			*testaddr = ~*target;
+			readback  = *target;
+
+#ifdef INJECT_ADDRESS_ERRORS
+			if(xor == 0x00008000) {
+				readback = *testaddr;
+			}
+#endif
+			if(readback == *testaddr) {
+				post_log ("Memory (address line) error at %08x<->%08x, "
+				  	"XOR value %08x !\n",
+					testaddr, target, xor);
+				ret = -1;
+			}
+		}
+	}
+	return ret;
+}
+
+static int memory_post_test1 (unsigned long start,
+			      unsigned long size,
+			      unsigned long val)
+{
+	unsigned long i;
+	ulong *mem = (ulong *) start;
+	ulong readback;
+	int ret = 0;
+
+	for (i = 0; i < size / sizeof (ulong); i++) {
+		mem[i] = val;
+		if (i % 1024 == 0)
+			WATCHDOG_RESET ();
+	}
+
+	for (i = 0; i < size / sizeof (ulong) && ret == 0; i++) {
+		readback = mem[i];
+		if (readback != val) {
+			post_log ("Memory error at %08x, "
+				  "wrote %08x, read %08x !\n",
+					  mem + i, val, readback);
+
+			ret = -1;
+			break;
+		}
+		if (i % 1024 == 0)
+			WATCHDOG_RESET ();
+	}
+
+	return ret;
+}
+
+static int memory_post_test2 (unsigned long start, unsigned long size)
+{
+	unsigned long i;
+	ulong *mem = (ulong *) start;
+	ulong readback;
+	int ret = 0;
+
+	for (i = 0; i < size / sizeof (ulong); i++) {
+		mem[i] = 1 << (i % 32);
+		if (i % 1024 == 0)
+			WATCHDOG_RESET ();
+	}
+
+	for (i = 0; i < size / sizeof (ulong) && ret == 0; i++) {
+		readback = mem[i];
+		if (readback != (1 << (i % 32))) {
+			post_log ("Memory error at %08x, "
+				  "wrote %08x, read %08x !\n",
+					  mem + i, 1 << (i % 32), readback);
+
+			ret = -1;
+			break;
+		}
+		if (i % 1024 == 0)
+			WATCHDOG_RESET ();
+	}
+
+	return ret;
+}
+
+static int memory_post_test3 (unsigned long start, unsigned long size)
+{
+	unsigned long i;
+	ulong *mem = (ulong *) start;
+	ulong readback;
+	int ret = 0;
+
+	for (i = 0; i < size / sizeof (ulong); i++) {
+		mem[i] = i;
+		if (i % 1024 == 0)
+			WATCHDOG_RESET ();
+	}
+
+	for (i = 0; i < size / sizeof (ulong) && ret == 0; i++) {
+		readback = mem[i];
+		if (readback != i) {
+			post_log ("Memory error at %08x, "
+				  "wrote %08x, read %08x !\n",
+					  mem + i, i, readback);
+
+			ret = -1;
+			break;
+		}
+		if (i % 1024 == 0)
+			WATCHDOG_RESET ();
+	}
+
+	return ret;
+}
+
+static int memory_post_test4 (unsigned long start, unsigned long size)
+{
+	unsigned long i;
+	ulong *mem = (ulong *) start;
+	ulong readback;
+	int ret = 0;
+
+	for (i = 0; i < size / sizeof (ulong); i++) {
+		mem[i] = ~i;
+		if (i % 1024 == 0)
+			WATCHDOG_RESET ();
+	}
+
+	for (i = 0; i < size / sizeof (ulong) && ret == 0; i++) {
+		readback = mem[i];
+		if (readback != ~i) {
+			post_log ("Memory error at %08x, "
+				  "wrote %08x, read %08x !\n",
+					  mem + i, ~i, readback);
+
+			ret = -1;
+			break;
+		}
+		if (i % 1024 == 0)
+			WATCHDOG_RESET ();
+	}
+
+	return ret;
+}
+
+static int memory_post_tests (unsigned long start, unsigned long size)
+{
+	int ret = 0;
+
+	if (ret == 0)
+		ret = memory_post_dataline ((long long *)start);
+	WATCHDOG_RESET ();
+	if (ret == 0)
+		ret = memory_post_addrline ((long *)start, (long *)start, size);
+	WATCHDOG_RESET ();
+	if (ret == 0)
+		ret = memory_post_addrline ((long *)(start + size - 8),
+					    (long *)start, size);
+	WATCHDOG_RESET ();
+	if (ret == 0)
+		ret = memory_post_test1 (start, size, 0x00000000);
+	WATCHDOG_RESET ();
+	if (ret == 0)
+		ret = memory_post_test1 (start, size, 0xffffffff);
+	WATCHDOG_RESET ();
+	if (ret == 0)
+		ret = memory_post_test1 (start, size, 0x55555555);
+	WATCHDOG_RESET ();
+	if (ret == 0)
+		ret = memory_post_test1 (start, size, 0xaaaaaaaa);
+	WATCHDOG_RESET ();
+	if (ret == 0)
+		ret = memory_post_test2 (start, size);
+	WATCHDOG_RESET ();
+	if (ret == 0)
+		ret = memory_post_test3 (start, size);
+	WATCHDOG_RESET ();
+	if (ret == 0)
+		ret = memory_post_test4 (start, size);
+	WATCHDOG_RESET ();
+
+	return ret;
+}
+
+int memory_post_test (int flags)
+{
+	int ret = 0;
+	DECLARE_GLOBAL_DATA_PTR;
+	bd_t *bd = gd->bd;
+	unsigned long memsize = (bd->bi_memsize >= 256 << 20 ?
+				 256 << 20 : bd->bi_memsize) - (1 << 20);
+
+
+	if (flags & POST_POWERFAIL) {
+		ret = memory_post_tests (CFG_SDRAM_BASE, memsize);
+	} else {			/* POST_POWERNORMAL */
+
+		unsigned long i;
+
+		for (i = 0; i < (memsize >> 20) && ret == 0; i++) {
+			if (ret == 0)
+				ret = memory_post_tests (i << 20, 0x800);
+			if (ret == 0)
+				ret = memory_post_tests ((i << 20) + 0xff800, 0x800);
+		}
+	}
+
+	return ret;
+}
+
+#endif /* CONFIG_POST & CFG_POST_MEMORY */
+#endif /* CONFIG_POST */