Merge commit 'origin/master'

4 files changed, 574 insertions, 39 deletions

diff --git a/board/lwmon5/Makefile b/board/lwmon5/Makefile
index 06ef7f9..2a93571 100644
--- a/board/lwmon5/Makefile
+++ b/board/lwmon5/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	= $(BOARD).o sdram.o
+COBJS	= $(BOARD).o kbd.o sdram.o
 SOBJS	= init.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
diff --git a/board/lwmon5/kbd.c b/board/lwmon5/kbd.c
new file mode 100644
index 0000000..1e5349a
--- /dev/null
+++ b/board/lwmon5/kbd.c
@@ -0,0 +1,458 @@
+/*
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * (C) Copyright 2001, 2002
+ * DENX Software Engineering
+ * Wolfgang Denk, wd@denx.de
+ *
+ * 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
+ */
+
+/* define DEBUG for debugging output (obviously ;-)) */
+#if 0
+#define DEBUG
+#endif
+
+#include <common.h>
+#include <i2c.h>
+#include <command.h>
+#include <post.h>
+#include <serial.h>
+#include <malloc.h>
+
+#include <linux/types.h>
+#include <linux/string.h>	/* for strdup */
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static void kbd_init (void);
+static int compare_magic (uchar *kbd_data, uchar *str);
+
+/*--------------------- Local macros and constants --------------------*/
+#define	_NOT_USED_	0xFFFFFFFF
+
+/*------------------------- Keyboard controller -----------------------*/
+/* command codes */
+#define	KEYBD_CMD_READ_KEYS	0x01
+#define KEYBD_CMD_READ_VERSION	0x02
+#define KEYBD_CMD_READ_STATUS	0x03
+#define KEYBD_CMD_RESET_ERRORS	0x10
+
+/* status codes */
+#define KEYBD_STATUS_MASK	0x3F
+#define	KEYBD_STATUS_H_RESET	0x20
+#define KEYBD_STATUS_BROWNOUT	0x10
+#define KEYBD_STATUS_WD_RESET	0x08
+#define KEYBD_STATUS_OVERLOAD	0x04
+#define KEYBD_STATUS_ILLEGAL_WR	0x02
+#define KEYBD_STATUS_ILLEGAL_RD	0x01
+
+/* Number of bytes returned from Keyboard Controller */
+#define KEYBD_VERSIONLEN	2	/* version information */
+
+/*
+ * This is different from the "old" lwmon dsPIC kbd controller
+ * implementation. Now the controller still answers with 9 bytes,
+ * but the last 3 bytes are always "0x06 0x07 0x08". So we just
+ * set the length to compare to 6 instead of 9.
+ */
+#define	KEYBD_DATALEN		6	/* normal key scan data */
+
+/* maximum number of "magic" key codes that can be assigned */
+
+static uchar kbd_addr = CFG_I2C_KEYBD_ADDR;
+
+static uchar *key_match (uchar *);
+
+#define	KEYBD_SET_DEBUGMODE	'#'	/* Magic key to enable debug output */
+
+/***********************************************************************
+F* Function:     int board_postclk_init (void) P*A*Z*
+ *
+P* Parameters:   none
+P*
+P* Returnvalue:  int
+P*                - 0 is always returned.
+ *
+Z* Intention:    This function is the board_postclk_init() method implementation
+Z*               for the lwmon board.
+ *
+ ***********************************************************************/
+int board_postclk_init (void)
+{
+	kbd_init();
+
+	return (0);
+}
+
+static void kbd_init (void)
+{
+	uchar kbd_data[KEYBD_DATALEN];
+	uchar tmp_data[KEYBD_DATALEN];
+	uchar val, errcd;
+	int i;
+
+	i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+
+	gd->kbd_status = 0;
+
+	/* Forced by PIC. Delays <= 175us loose */
+	udelay(1000);
+
+	/* Read initial keyboard error code */
+	val = KEYBD_CMD_READ_STATUS;
+	i2c_write (kbd_addr, 0, 0, &val, 1);
+	i2c_read (kbd_addr, 0, 0, &errcd, 1);
+	/* clear unused bits */
+	errcd &= KEYBD_STATUS_MASK;
+	/* clear "irrelevant" bits. Recommended by Martin Rajek, LWN */
+	errcd &= ~(KEYBD_STATUS_H_RESET|KEYBD_STATUS_BROWNOUT);
+	if (errcd) {
+		gd->kbd_status |= errcd << 8;
+	}
+	/* Reset error code and verify */
+	val = KEYBD_CMD_RESET_ERRORS;
+	i2c_write (kbd_addr, 0, 0, &val, 1);
+	udelay(1000);	/* delay NEEDED by keyboard PIC !!! */
+
+	val = KEYBD_CMD_READ_STATUS;
+	i2c_write (kbd_addr, 0, 0, &val, 1);
+	i2c_read (kbd_addr, 0, 0, &val, 1);
+
+	val &= KEYBD_STATUS_MASK;	/* clear unused bits */
+	if (val) {			/* permanent error, report it */
+		gd->kbd_status |= val;
+		return;
+	}
+
+	/*
+	 * Read current keyboard state.
+	 *
+	 * After the error reset it may take some time before the
+	 * keyboard PIC picks up a valid keyboard scan - the total
+	 * scan time is approx. 1.6 ms (information by Martin Rajek,
+	 * 28 Sep 2002). We read a couple of times for the keyboard
+	 * to stabilize, using a big enough delay.
+	 * 10 times should be enough. If the data is still changing,
+	 * we use what we get :-(
+	 */
+
+	memset (tmp_data, 0xFF, KEYBD_DATALEN);	/* impossible value */
+	for (i=0; i<10; ++i) {
+		val = KEYBD_CMD_READ_KEYS;
+		i2c_write (kbd_addr, 0, 0, &val, 1);
+		i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_DATALEN);
+
+		if (memcmp(kbd_data, tmp_data, KEYBD_DATALEN) == 0) {
+			/* consistent state, done */
+			break;
+		}
+		/* remeber last state, delay, and retry */
+		memcpy (tmp_data, kbd_data, KEYBD_DATALEN);
+		udelay (5000);
+	}
+}
+
+/***********************************************************************
+F* Function:     int misc_init_r (void) P*A*Z*
+ *
+P* Parameters:   none
+P*
+P* Returnvalue:  int
+P*                - 0 is always returned, even in the case of a keyboard
+P*                    error.
+ *
+Z* Intention:    This function is the misc_init_r() method implementation
+Z*               for the lwmon board.
+Z*               The keyboard controller is initialized and the result
+Z*               of a read copied to the environment variable "keybd".
+Z*               If KEYBD_SET_DEBUGMODE is defined, a check is made for
+Z*               this key, and if found display to the LCD will be enabled.
+Z*               The keys in "keybd" are checked against the magic
+Z*               keycommands defined in the environment.
+Z*               See also key_match().
+ *
+D* Design:       wd@denx.de
+C* Coding:       wd@denx.de
+V* Verification: dzu@denx.de
+ ***********************************************************************/
+int misc_init_r_kbd (void)
+{
+	uchar kbd_data[KEYBD_DATALEN];
+	char keybd_env[2 * KEYBD_DATALEN + 1];
+	uchar kbd_init_status = gd->kbd_status >> 8;
+	uchar kbd_status = gd->kbd_status;
+	uchar val;
+	char *str;
+	int i;
+
+	if (kbd_init_status) {
+		printf ("KEYBD: Error %02X\n", kbd_init_status);
+	}
+	if (kbd_status) {		/* permanent error, report it */
+		printf ("*** Keyboard error code %02X ***\n", kbd_status);
+		sprintf (keybd_env, "%02X", kbd_status);
+		setenv ("keybd", keybd_env);
+		return 0;
+	}
+
+	/*
+	 * Now we know that we have a working  keyboard,  so  disable
+	 * all output to the LCD except when a key press is detected.
+	 */
+
+	if ((console_assign (stdout, "serial") < 0) ||
+		(console_assign (stderr, "serial") < 0)) {
+		printf ("Can't assign serial port as output device\n");
+	}
+
+	/* Read Version */
+	val = KEYBD_CMD_READ_VERSION;
+	i2c_write (kbd_addr, 0, 0, &val, 1);
+	i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_VERSIONLEN);
+	printf ("KEYBD: Version %d.%d\n", kbd_data[0], kbd_data[1]);
+
+	/* Read current keyboard state */
+	val = KEYBD_CMD_READ_KEYS;
+	i2c_write (kbd_addr, 0, 0, &val, 1);
+	i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_DATALEN);
+
+	for (i = 0; i < KEYBD_DATALEN; ++i) {
+		sprintf (keybd_env + i + i, "%02X", kbd_data[i]);
+	}
+	setenv ("keybd", keybd_env);
+
+	str = strdup ((char *)key_match (kbd_data));	/* decode keys */
+#ifdef KEYBD_SET_DEBUGMODE
+	if (kbd_data[0] == KEYBD_SET_DEBUGMODE) {	/* set debug mode */
+		if ((console_assign (stdout, "lcd") < 0) ||
+			(console_assign (stderr, "lcd") < 0)) {
+			printf ("Can't assign LCD display as output device\n");
+		}
+	}
+#endif /* KEYBD_SET_DEBUGMODE */
+#ifdef CONFIG_PREBOOT	/* automatically configure "preboot" command on key match */
+	setenv ("preboot", str);	/* set or delete definition */
+#endif /* CONFIG_PREBOOT */
+	if (str != NULL) {
+		free (str);
+	}
+	return (0);
+}
+
+#ifdef CONFIG_PREBOOT
+
+static uchar kbd_magic_prefix[] = "key_magic";
+static uchar kbd_command_prefix[] = "key_cmd";
+
+static int compare_magic (uchar *kbd_data, uchar *str)
+{
+	uchar compare[KEYBD_DATALEN-1];
+	char *nxt;
+	int i;
+
+	/* Don't include modifier byte */
+	memcpy (compare, kbd_data+1, KEYBD_DATALEN-1);
+
+	for (; str != NULL; str = (*nxt) ? (uchar *)(nxt+1) : (uchar *)nxt) {
+		uchar c;
+		int k;
+
+		c = (uchar) simple_strtoul ((char *)str, (char **) (&nxt), 16);
+
+		if (str == (uchar *)nxt) {	/* invalid character */
+			break;
+		}
+
+		/*
+		 * Check if this key matches the input.
+		 * Set matches to zero, so they match only once
+		 * and we can find duplicates or extra keys
+		 */
+		for (k = 0; k < sizeof(compare); ++k) {
+			if (compare[k] == '\0')	/* only non-zero entries */
+				continue;
+			if (c == compare[k]) {	/* found matching key */
+				compare[k] = '\0';
+				break;
+			}
+		}
+		if (k == sizeof(compare)) {
+			return -1;		/* unmatched key */
+		}
+	}
+
+	/*
+	 * A full match leaves no keys in the `compare' array,
+	 */
+	for (i = 0; i < sizeof(compare); ++i) {
+		if (compare[i])
+		{
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+/***********************************************************************
+F* Function:     static uchar *key_match (uchar *kbd_data) P*A*Z*
+ *
+P* Parameters:   uchar *kbd_data
+P*                - The keys to match against our magic definitions
+P*
+P* Returnvalue:  uchar *
+P*                - != NULL: Pointer to the corresponding command(s)
+P*                     NULL: No magic is about to happen
+ *
+Z* Intention:    Check if pressed key(s) match magic sequence,
+Z*               and return the command string associated with that key(s).
+Z*
+Z*               If no key press was decoded, NULL is returned.
+Z*
+Z*               Note: the first character of the argument will be
+Z*                     overwritten with the "magic charcter code" of the
+Z*                     decoded key(s), or '\0'.
+Z*
+Z*               Note: the string points to static environment data
+Z*                     and must be saved before you call any function that
+Z*                     modifies the environment.
+ *
+D* Design:       wd@denx.de
+C* Coding:       wd@denx.de
+V* Verification: dzu@denx.de
+ ***********************************************************************/
+static uchar *key_match (uchar *kbd_data)
+{
+	char magic[sizeof (kbd_magic_prefix) + 1];
+	uchar *suffix;
+	char *kbd_magic_keys;
+
+	/*
+	 * The following string defines the characters that can pe appended
+	 * to "key_magic" to form the names of environment variables that
+	 * hold "magic" key codes, i. e. such key codes that can cause
+	 * pre-boot actions. If the string is empty (""), then only
+	 * "key_magic" is checked (old behaviour); the string "125" causes
+	 * checks for "key_magic1", "key_magic2" and "key_magic5", etc.
+	 */
+	if ((kbd_magic_keys = getenv ("magic_keys")) == NULL)
+		kbd_magic_keys = "";
+
+	/* loop over all magic keys;
+	 * use '\0' suffix in case of empty string
+	 */
+	for (suffix=(uchar *)kbd_magic_keys; *suffix || suffix==(uchar *)kbd_magic_keys; ++suffix) {
+		sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
+		debug ("### Check magic \"%s\"\n", magic);
+		if (compare_magic(kbd_data, (uchar *)getenv(magic)) == 0) {
+			char cmd_name[sizeof (kbd_command_prefix) + 1];
+			char *cmd;
+
+			sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix);
+
+			cmd = getenv (cmd_name);
+			debug ("### Set PREBOOT to $(%s): \"%s\"\n",
+					cmd_name, cmd ? cmd : "<<NULL>>");
+			*kbd_data = *suffix;
+			return ((uchar *)cmd);
+		}
+	}
+	debug ("### Delete PREBOOT\n");
+	*kbd_data = '\0';
+	return (NULL);
+}
+#endif /* CONFIG_PREBOOT */
+
+/***********************************************************************
+F* Function:     int do_kbd (cmd_tbl_t *cmdtp, int flag,
+F*                           int argc, char *argv[]) P*A*Z*
+ *
+P* Parameters:   cmd_tbl_t *cmdtp
+P*                - Pointer to our command table entry
+P*               int flag
+P*                - If the CMD_FLAG_REPEAT bit is set, then this call is
+P*                  a repetition
+P*               int argc
+P*                - Argument count
+P*               char *argv[]
+P*                - Array of the actual arguments
+P*
+P* Returnvalue:  int
+P*                - 0 is always returned.
+ *
+Z* Intention:    Implement the "kbd" command.
+Z*               The keyboard status is read.  The result is printed on
+Z*               the console and written into the "keybd" environment
+Z*               variable.
+ *
+D* Design:       wd@denx.de
+C* Coding:       wd@denx.de
+V* Verification: dzu@denx.de
+ ***********************************************************************/
+int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	uchar kbd_data[KEYBD_DATALEN];
+	char keybd_env[2 * KEYBD_DATALEN + 1];
+	uchar val;
+	int i;
+
+#if 0 /* Done in kbd_init */
+	i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+#endif
+
+	/* Read keys */
+	val = KEYBD_CMD_READ_KEYS;
+	i2c_write (kbd_addr, 0, 0, &val, 1);
+	i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_DATALEN);
+
+	puts ("Keys:");
+	for (i = 0; i < KEYBD_DATALEN; ++i) {
+		sprintf (keybd_env + i + i, "%02X", kbd_data[i]);
+		printf (" %02x", kbd_data[i]);
+	}
+	putc ('\n');
+	setenv ("keybd", keybd_env);
+	return 0;
+}
+
+U_BOOT_CMD(
+	kbd,	1,	1,	do_kbd,
+	"kbd     - read keyboard status\n",
+	NULL
+);
+
+/*----------------------------- Utilities -----------------------------*/
+
+#ifdef CONFIG_POST
+/*
+ * Returns 1 if keys pressed to start the power-on long-running tests
+ * Called from board_init_f().
+ */
+int post_hotkeys_pressed(void)
+{
+	uchar kbd_data[KEYBD_DATALEN];
+	uchar val;
+
+	/* Read keys */
+	val = KEYBD_CMD_READ_KEYS;
+	i2c_write (kbd_addr, 0, 0, &val, 1);
+	i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_DATALEN);
+
+	return (compare_magic(kbd_data, (uchar *)CONFIG_POST_KEY_MAGIC) == 0);
+}
+#endif
diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c
index d916284..77f9989 100644
--- a/board/lwmon5/lwmon5.c
+++ b/board/lwmon5/lwmon5.c
@@ -19,6 +19,7 @@
  */
 
 #include <common.h>
+#include <command.h>
 #include <ppc440.h>
 #include <asm/processor.h>
 #include <asm/gpio.h>
@@ -28,7 +29,8 @@ DECLARE_GLOBAL_DATA_PTR;
 
 extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips	*/
 
-ulong flash_get_size (ulong base, int banknum);
+ulong flash_get_size(ulong base, int banknum);
+int misc_init_r_kbd(void);
 
 int board_early_init_f(void)
 {
@@ -45,16 +47,16 @@ int board_early_init_f(void)
 	mtdcr(uic0sr, 0xffffffff);  /* clear all. if write with 1 then the status is cleared  */
 	mtdcr(uic0er, 0x00000000);  /* disable all */
 	mtdcr(uic0cr, 0x00000000);  /* we have not critical interrupts at the moment */
-	mtdcr(uic0pr, 0xfffff7ff);  /* Adjustment of the polarity */
-	mtdcr(uic0tr, 0x00000810);  /* per ref-board manual */
+	mtdcr(uic0pr, 0xFFBFF1EF);  /* Adjustment of the polarity */
+	mtdcr(uic0tr, 0x00000900);  /* per ref-board manual */
 	mtdcr(uic0vr, 0x00000000);  /* int31 highest, base=0x000 is within DDRAM */
 	mtdcr(uic0sr, 0xffffffff);  /* clear all */
 
 	mtdcr(uic1sr, 0xffffffff);  /* clear all */
 	mtdcr(uic1er, 0x00000000);  /* disable all */
 	mtdcr(uic1cr, 0x00000000);  /* all non-critical */
-	mtdcr(uic1pr, 0xFFFFC7AD);  /* Adjustment of the polarity */
-	mtdcr(uic1tr, 0x0600384A);  /* per ref-board manual */
+	mtdcr(uic1pr, 0xFFFFC6A5);  /* Adjustment of the polarity */
+	mtdcr(uic1tr, 0x60000040);  /* per ref-board manual */
 	mtdcr(uic1vr, 0x00000000);  /* int31 highest, base=0x000 is within DDRAM */
 	mtdcr(uic1sr, 0xffffffff);  /* clear all */
 
@@ -62,9 +64,9 @@ int board_early_init_f(void)
 	mtdcr(uic2er, 0x00000000);  /* disable all */
 	mtdcr(uic2cr, 0x00000000);  /* all non-critical */
 	mtdcr(uic2pr, 0x27C00000);  /* Adjustment of the polarity */
-	mtdcr(uic2tr, 0xDFC00000);  /* per ref-board manual */
+	mtdcr(uic2tr, 0x3C000000);  /* per ref-board manual */
 	mtdcr(uic2vr, 0x00000000);  /* int31 highest, base=0x000 is within DDRAM */
-	mtdcr(uic2sr, 0xffffffff);  /* clear all. Why this??? */
+	mtdcr(uic2sr, 0xffffffff);  /* clear all */
 
 	/* Trace Pins are disabled. SDR0_PFC0 Register */
 	mtsdr(SDR0_PFC0, 0x0);
@@ -158,13 +160,13 @@ int misc_init_r(void)
 	(void)flash_protect(FLAG_PROTECT_SET,
 			    -CFG_MONITOR_LEN,
 			    0xffffffff,
-			    &flash_info[0]);
+			    &flash_info[1]);
 
 	/* Env protection ON by default */
 	(void)flash_protect(FLAG_PROTECT_SET,
 			    CFG_ENV_ADDR_REDUND,
 			    CFG_ENV_ADDR_REDUND + 2*CFG_ENV_SECT_SIZE - 1,
-			    &flash_info[0]);
+			    &flash_info[1]);
 
 	/*
 	 * USB suff...
@@ -221,8 +223,8 @@ int misc_init_r(void)
 	udelay(500);
 	gpio_write_bit(CFG_GPIO_LIME_RST, 1);
 
-	/* Lime memory clock adjusted to 133MHz */
-	out_be32((void *)CFG_LIME_SDRAM_CLOCK, CFG_LIME_CLOCK_133MHZ);
+	/* Lime memory clock adjusted to 100MHz */
+	out_be32((void *)CFG_LIME_SDRAM_CLOCK, CFG_LIME_CLOCK_100MHZ);
 	/* Wait untill time expired. Because of requirements in lime manual */
 	udelay(300);
 	/* Write lime controller memory parameters */
@@ -237,6 +239,69 @@ int misc_init_r(void)
 	gpio_write_bit(CFG_GPIO_PHY0_RST, 1);
 	gpio_write_bit(CFG_GPIO_PHY1_RST, 1);
 
+	/*
+	 * Init display controller
+	 */
+	/* Setup dot clock (internal PLL, division rate 1/16) */
+	out_be32((void *)0xc1fd0100, 0x00000f00);
+
+	/* Lime L0 init (16 bpp, 640x480) */
+	out_be32((void *)0xc1fd0020, 0x801401df);
+	out_be32((void *)0xc1fd0024, 0x0);
+	out_be32((void *)0xc1fd0028, 0x0);
+	out_be32((void *)0xc1fd002c, 0x0);
+	out_be32((void *)0xc1fd0110, 0x0);
+	out_be32((void *)0xc1fd0114, 0x0);
+	out_be32((void *)0xc1fd0118, 0x01df0280);
+
+	/* Display timing init */
+	out_be32((void *)0xc1fd0004, 0x031f0000);
+	out_be32((void *)0xc1fd0008, 0x027f027f);
+	out_be32((void *)0xc1fd000c, 0x015f028f);
+	out_be32((void *)0xc1fd0010, 0x020c0000);
+	out_be32((void *)0xc1fd0014, 0x01df01ea);
+	out_be32((void *)0xc1fd0018, 0x0);
+	out_be32((void *)0xc1fd001c, 0x01e00280);
+
+#if 1
+	/*
+	 * Clear framebuffer using Lime's drawing engine
+	 * (draw blue rect. with white border around it)
+	 */
+	/* Setup mode and fbbase, xres, fg, bg */
+	out_be32((void *)0xc1ff0420, 0x8300);
+	out_be32((void *)0xc1ff0440, 0x0000);
+	out_be32((void *)0xc1ff0444, 0x0280);
+	out_be32((void *)0xc1ff0480, 0x7fff);
+	out_be32((void *)0xc1ff0484, 0x0000);
+	/* Reset clipping rectangle */
+	out_be32((void *)0xc1ff0454, 0x0000);
+	out_be32((void *)0xc1ff0458, 0x0280);
+	out_be32((void *)0xc1ff045c, 0x0000);
+	out_be32((void *)0xc1ff0460, 0x01e0);
+	/* Draw white rect. */
+	out_be32((void *)0xc1ff04a0, 0x09410000);
+	out_be32((void *)0xc1ff04a0, 0x00000000);
+	out_be32((void *)0xc1ff04a0, 0x01e00280);
+	udelay(2000);
+	/* Draw blue rect. */
+	out_be32((void *)0xc1ff0480, 0x001f);
+	out_be32((void *)0xc1ff04a0, 0x09410000);
+	out_be32((void *)0xc1ff04a0, 0x00010001);
+	out_be32((void *)0xc1ff04a0, 0x01de027e);
+#endif
+	/* Display enable, L0 layer */
+	out_be32((void *)0xc1fd0100, 0x80010f00);
+
+	/* TFT-LCD enable - PWM duty, lamp on */
+	out_be32((void *)0xc4000024, 0x64);
+	out_be32((void *)0xc4000020, 0x701);
+
+	/*
+	 * Init matrix keyboard
+	 */
+	misc_init_r_kbd();
+
 	return 0;
 }
 
@@ -463,3 +528,29 @@ void hw_watchdog_reset(void)
 	val = gpio_read_out_bit(CFG_GPIO_WATCHDOG) == 0 ? 1 : 0;
 	gpio_write_bit(CFG_GPIO_WATCHDOG, val);
 }
+
+int do_eeprom_wp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	if (argc < 2) {
+		printf("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	if ((strcmp(argv[1], "on") == 0)) {
+		gpio_write_bit(CFG_GPIO_EEPROM_EXT_WP, 1);
+	} else if ((strcmp(argv[1], "off") == 0)) {
+		gpio_write_bit(CFG_GPIO_EEPROM_EXT_WP, 0);
+	} else {
+		printf("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	eepromwp,	2,	0,	do_eeprom_wp,
+	"eepromwp- eeprom write protect off/on\n",
+	"<on|off> - enable (on) or disable (off) I2C EEPROM write protect\n"
+);
diff --git a/board/lwmon5/sdram.c b/board/lwmon5/sdram.c
index 9a4a8ee..d4547e2 100644
--- a/board/lwmon5/sdram.c
+++ b/board/lwmon5/sdram.c
@@ -54,11 +54,9 @@
 #define MY_TLB_WORD2_I_ENABLE	TLB_WORD2_I_ENABLE	/* disable caching on SDRAM */
 #endif
 
-void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
 void dcbz_area(u32 start_address, u32 num_bytes);
 void dflush(void);
 
-#ifdef CONFIG_ADD_RAM_INFO
 static u32 is_ecc_enabled(void)
 {
 	u32 val;
@@ -88,7 +86,6 @@ void board_add_ram_info(int use_default)
 	val = DDR0_03_CASLAT_DECODE(val);
 	printf(", CL%d)", val);
 }
-#endif
 
 static int wait_for_dlllock(void)
 {
@@ -474,7 +471,7 @@ static void program_ecc(u32 start_address,
 		blank_string(strlen(str));
 	} else {
 		/* ECC bit set method for cached memory */
-#if 1 /* test-only: will remove this define later, when ECC problems are solved! */
+#if 0 /* test-only: will remove this define later, when ECC problems are solved! */
 		/*
 		 * Some boards (like lwmon5) need to preserve the memory
 		 * content upon ECC generation (for the log-buffer).
@@ -487,6 +484,11 @@ static void program_ecc(u32 start_address,
 
 		current_address = start_address;
 		while (current_address < end_address) {
+			/*
+			 * TODO: Th following sequence doesn't work correctly.
+			 * Just invalidating and flushing the cache doesn't
+			 * seem to trigger the re-write of the memory.
+			 */
 			ppcDcbi(current_address);
 			ppcDcbf(current_address);
 			current_address += CFG_CACHELINE_SIZE;
@@ -515,19 +517,6 @@ static void program_ecc(u32 start_address,
 }
 #endif
 
-static __inline__ u32 get_mcsr(void)
-{
-	u32 val;
-
-	asm volatile("mfspr %0, 0x23c" : "=r" (val) :);
-	return val;
-}
-
-static __inline__ void set_mcsr(u32 val)
-{
-	asm volatile("mtspr 0x23c, %0" : "=r" (val) :);
-}
-
 /*************************************************************************
  *
  * initdram -- 440EPx's DDR controller is a DENALI Core
@@ -535,8 +524,6 @@ static __inline__ void set_mcsr(u32 val)
  ************************************************************************/
 long int initdram (int board_type)
 {
-	u32 val;
-
 #if 0 /* test-only: will remove this define later, when ECC problems are solved! */
 	/* CL=3 */
 	mtsdram(DDR0_02, 0x00000000);
@@ -641,14 +628,6 @@ long int initdram (int board_type)
 	 * Perform data eye search if requested.
 	 */
 	denali_core_search_data_eye(CFG_DDR_CACHED_ADDR, CFG_MBYTES_SDRAM << 20);
-
-	/*
-	 * Clear possible errors resulting from data-eye-search.
-	 * If not done, then we could get an interrupt later on when
-	 * exceptions are enabled.
-	 */
-	val = get_mcsr();
-	set_mcsr(val);
 #endif
 
 #ifdef CONFIG_DDR_ECC
@@ -658,5 +637,12 @@ long int initdram (int board_type)
 	program_ecc(CFG_DDR_CACHED_ADDR, CFG_MBYTES_SDRAM << 20, 0);
 #endif
 
+	/*
+	 * Clear possible errors resulting from data-eye-search.
+	 * If not done, then we could get an interrupt later on when
+	 * exceptions are enabled.
+	 */
+	set_mcsr(get_mcsr());
+
 	return (CFG_MBYTES_SDRAM << 20);
 }