* Add support for PPChameleon Eval Board

* Add support for P3G4 board

* Fix problem with MGT5100 FEC driver: add "early" MAC address
  initialization

1 files changed, 256 insertions, 0 deletions

diff --git a/board/dave/common/fpga.c b/board/dave/common/fpga.c
new file mode 100644
index 0000000..9547325
--- /dev/null
+++ b/board/dave/common/fpga.c
@@ -0,0 +1,256 @@
+/*
+ * (C) Copyright 2001-2003
+ * Matthias Fuchs, esd gmbh germany, matthias.fuchs@esd-electronics.com
+ * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <command.h>
+
+/* ------------------------------------------------------------------------- */
+
+#ifdef FPGA_DEBUG
+#define DBG(x...) printf(x)
+#else
+#define DBG(x...)
+#endif /* DEBUG */
+
+#define MAX_ONES               226
+
+#ifdef CFG_FPGA_PRG
+# define FPGA_PRG              CFG_FPGA_PRG /* FPGA program pin (ppc output)*/
+# define FPGA_CLK              CFG_FPGA_CLK /* FPGA clk pin (ppc output)    */
+# define FPGA_DATA             CFG_FPGA_DATA /* FPGA data pin (ppc output)  */
+# define FPGA_DONE             CFG_FPGA_DONE /* FPGA done pin (ppc input)   */
+# define FPGA_INIT             CFG_FPGA_INIT /* FPGA init pin (ppc input)   */
+#else
+# define FPGA_PRG              0x04000000  /* FPGA program pin (ppc output) */
+# define FPGA_CLK              0x02000000  /* FPGA clk pin (ppc output)     */
+# define FPGA_DATA             0x01000000  /* FPGA data pin (ppc output)    */
+# define FPGA_DONE             0x00800000  /* FPGA done pin (ppc input)     */
+# define FPGA_INIT             0x00400000  /* FPGA init pin (ppc input)     */
+#endif
+
+#define ERROR_FPGA_PRG_INIT_LOW  -1        /* Timeout after PRG* asserted   */
+#define ERROR_FPGA_PRG_INIT_HIGH -2        /* Timeout after PRG* deasserted */
+#define ERROR_FPGA_PRG_DONE      -3        /* Timeout after programming     */
+
+#define SET_FPGA(data)         out32(GPIO0_OR, data)
+
+#define FPGA_WRITE_1 {                                                    \
+        SET_FPGA(FPGA_PRG |            FPGA_DATA);  /* set clock to 0 */  \
+        SET_FPGA(FPGA_PRG |            FPGA_DATA);  /* set data to 1  */  \
+        SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);  /* set clock to 1 */  \
+        SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);} /* set data to 1  */
+
+#define FPGA_WRITE_0 {                                                    \
+        SET_FPGA(FPGA_PRG |            FPGA_DATA);  /* set clock to 0 */  \
+        SET_FPGA(FPGA_PRG);                         /* set data to 0  */  \
+        SET_FPGA(FPGA_PRG | FPGA_CLK);              /* set clock to 1 */  \
+        SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);} /* set data to 1  */
+
+#if 0
+static int fpga_boot (unsigned char *fpgadata, int size)
+{
+	int i, index, len;
+	int count;
+
+#ifdef CFG_FPGA_SPARTAN2
+	int j;
+#else
+	unsigned char b;
+	int bit;
+#endif
+
+	/* display infos on fpgaimage */
+	index = 15;
+	for (i = 0; i < 4; i++) {
+		len = fpgadata[index];
+		DBG ("FPGA: %s\n", &(fpgadata[index + 1]));
+		index += len + 3;
+	}
+
+#ifdef CFG_FPGA_SPARTAN2
+	/* search for preamble 0xFFFFFFFF */
+	while (1) {
+		if ((fpgadata[index] == 0xff) && (fpgadata[index + 1] == 0xff)
+		    && (fpgadata[index + 2] == 0xff)
+		    && (fpgadata[index + 3] == 0xff))
+			break;	/* preamble found */
+		else
+			index++;
+	}
+#else
+	/* search for preamble 0xFF2X */
+	for (index = 0; index < size - 1; index++) {
+		if ((fpgadata[index] == 0xff)
+		    && ((fpgadata[index + 1] & 0xf0) == 0x30))
+			break;
+	}
+	index += 2;
+#endif
+
+	DBG ("FPGA: configdata starts at position 0x%x\n", index);
+	DBG ("FPGA: length of fpga-data %d\n", size - index);
+
+	/*
+	 * Setup port pins for fpga programming
+	 */
+	out32 (GPIO0_ODR, 0x00000000);	/* no open drain pins */
+	out32 (GPIO0_TCR, in32 (GPIO0_TCR) | FPGA_PRG | FPGA_CLK | FPGA_DATA);	/* setup for output */
+	out32 (GPIO0_OR, in32 (GPIO0_OR) | FPGA_PRG | FPGA_CLK | FPGA_DATA);	/* set pins to high */
+
+	DBG ("%s, ",
+	     ((in32 (GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE");
+	DBG ("%s\n",
+	     ((in32 (GPIO0_IR) & FPGA_INIT) == 0) ? "NOT INIT" : "INIT");
+
+	/*
+	 * Init fpga by asserting and deasserting PROGRAM*
+	 */
+	SET_FPGA (FPGA_CLK | FPGA_DATA);
+
+	/* Wait for FPGA init line low */
+	count = 0;
+	while (in32 (GPIO0_IR) & FPGA_INIT) {
+		udelay (1000);	/* wait 1ms */
+		/* Check for timeout - 100us max, so use 3ms */
+		if (count++ > 3) {
+			DBG ("FPGA: Booting failed!\n");
+			return ERROR_FPGA_PRG_INIT_LOW;
+		}
+	}
+
+	DBG ("%s, ",
+	     ((in32 (GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE");
+	DBG ("%s\n",
+	     ((in32 (GPIO0_IR) & FPGA_INIT) == 0) ? "NOT INIT" : "INIT");
+
+	/* deassert PROGRAM* */
+	SET_FPGA (FPGA_PRG | FPGA_CLK | FPGA_DATA);
+
+	/* Wait for FPGA end of init period .  */
+	count = 0;
+	while (!(in32 (GPIO0_IR) & FPGA_INIT)) {
+		udelay (1000);	/* wait 1ms */
+		/* Check for timeout */
+		if (count++ > 3) {
+			DBG ("FPGA: Booting failed!\n");
+			return ERROR_FPGA_PRG_INIT_HIGH;
+		}
+	}
+
+	DBG ("%s, ",
+	     ((in32 (GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE");
+	DBG ("%s\n",
+	     ((in32 (GPIO0_IR) & FPGA_INIT) == 0) ? "NOT INIT" : "INIT");
+
+	DBG ("write configuration data into fpga\n");
+	/* write configuration-data into fpga... */
+
+#ifdef CFG_FPGA_SPARTAN2
+	/*
+	 * Load uncompressed image into fpga
+	 */
+	for (i = index; i < size; i++) {
+		for (j = 0; j < 8; j++) {
+			if ((fpgadata[i] & 0x80) == 0x80) {
+				FPGA_WRITE_1;
+			} else {
+				FPGA_WRITE_0;
+			}
+			fpgadata[i] <<= 1;
+		}
+	}
+#else	/* ! CFG_FPGA_SPARTAN2 */
+	/* send 0xff 0x20 */
+	FPGA_WRITE_1;
+	FPGA_WRITE_1;
+	FPGA_WRITE_1;
+	FPGA_WRITE_1;
+	FPGA_WRITE_1;
+	FPGA_WRITE_1;
+	FPGA_WRITE_1;
+	FPGA_WRITE_1;
+	FPGA_WRITE_0;
+	FPGA_WRITE_0;
+	FPGA_WRITE_1;
+	FPGA_WRITE_0;
+	FPGA_WRITE_0;
+	FPGA_WRITE_0;
+	FPGA_WRITE_0;
+	FPGA_WRITE_0;
+
+	/*
+	 ** Bit_DeCompression
+	 **   Code 1           .. maxOnes     : n                 '1's followed by '0'
+	 **        maxOnes + 1 .. maxOnes + 1 : n - 1             '1's no '0'
+	 **        maxOnes + 2 .. 254         : n - (maxOnes + 2) '0's followed by '1'
+	 **        255                        :                   '1'
+	 */
+
+	for (i = index; i < size; i++) {
+		b = fpgadata[i];
+		if ((b >= 1) && (b <= MAX_ONES)) {
+			for (bit = 0; bit < b; bit++) {
+				FPGA_WRITE_1;
+			}
+			FPGA_WRITE_0;
+		} else if (b == (MAX_ONES + 1)) {
+			for (bit = 1; bit < b; bit++) {
+				FPGA_WRITE_1;
+			}
+		} else if ((b >= (MAX_ONES + 2)) && (b <= 254)) {
+			for (bit = 0; bit < (b - (MAX_ONES + 2)); bit++) {
+				FPGA_WRITE_0;
+			}
+			FPGA_WRITE_1;
+		} else if (b == 255) {
+			FPGA_WRITE_1;
+		}
+	}
+#endif	/* CFG_FPGA_SPARTAN2 */
+
+	DBG ("%s, ",
+	     ((in32 (GPIO0_IR) & FPGA_DONE) == 0) ? "NOT DONE" : "DONE");
+	DBG ("%s\n",
+	     ((in32 (GPIO0_IR) & FPGA_INIT) == 0) ? "NOT INIT" : "INIT");
+
+	/*
+	 * Check if fpga's DONE signal - correctly booted ?
+	 */
+
+	/* Wait for FPGA end of programming period .  */
+	count = 0;
+	while (!(in32 (GPIO0_IR) & FPGA_DONE)) {
+		udelay (1000);	/* wait 1ms */
+		/* Check for timeout */
+		if (count++ > 3) {
+			DBG ("FPGA: Booting failed!\n");
+			return ERROR_FPGA_PRG_DONE;
+		}
+	}
+
+	DBG ("FPGA: Booting successful!\n");
+	return 0;
+}
+#endif	/* 0 */