add-per-board-init-change-qi.patch

Giant patch:

 - renames everything from kboot to qi

 - changes filenames accordingly in several places

 - fixes the linker script so stuff that does not execute
   from steppingstone context has real linked addresses
   in the relocated region, it means all code and pointers
   work now outside first 4KBytes

 - adds src/gta02/gta02.c to contain board-specific init and
   other functions

 - adds sophisticated structs to define most features in the
   board-specific files, including board type detection,
   board revision detection, and multiple kernel source
   definition (NAND, SD FAT, SD ext2, etc), including auto
   sequencing of trying the kernel sources in order (filesystems
   and partition support not done yet)

 - GTA02 detects itself by NOR presence and reports A5 / A6

 - commandlines for kernel also come from board-specific
   kernel source definitions so correct kernel commandlines
   are provided depending on boot device -- on GTA02 now
   boots NAND kernel into NAND jffs2 filesystem

 - CRC32 is checked on loaded kernel image to make sure we
   know about corruption in bootloader

Signed-off-by: Andy Green <andy@openmoko.com>

qiboot/src/start_qi.c

@@ -0,0 +1,108 @@
+/*
+ * (C) Copyright 2007 OpenMoko, Inc.
+ * Author: xiangfu liu <xiangfu@openmoko.org>
+ *         Andy Green <andy@openmoko.com>
+ *
+ * Configuation settings for the OPENMOKO Neo GTA02 Linux GSM phone
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* NOTE this stuff runs in steppingstone context! */
+
+
+#include <qi.h>
+#include "blink_led.h"
+#include "nand_read.h"
+#include <neo_gta02.h>
+
+#define stringify2(s) stringify1(s)
+#define stringify1(s) #s
+
+extern void bootloader_second_phase(void);
+
+const struct board_api * boards[] = {
+	&board_api_gta02
+};
+
+struct board_api const * this_board;
+
+void start_qi(void)
+{
+	int n = 0;
+	int board = 0;
+	const struct board_variant * board_variant;
+	/*
+	 * We got the first 4KBytes of the bootloader pulled into the
+	 * steppingstone SRAM for free.  Now we pull the whole bootloader
+	 * image into SDRAM.
+	 *
+	 * So this doesn't trash position-dependent code, we took care in the
+	 * linker script to arrange all rodata* segment content to be in the
+	 * first 4K region.
+	 */
+
+	/* We randomly pull 24KBytes of bootloader */
+	if (nand_read_ll((unsigned char *)TEXT_BASE, 0, 24 * 1024) < 0)
+		goto unhappy;
+
+	/* ask all the boards we support in turn if they recognize this
+	 * hardware we are running on, accept the first positive answer
+	 */
+
+	this_board = boards[board];
+	while (!n) {
+		if (board >= (sizeof(boards) / sizeof(boards[0])))
+			/* can't put diagnostic on serial... too early */
+			goto unhappy;
+
+		if (this_board->is_this_board())
+			n = 1;
+		else 
+			this_board = boards[board++];
+	}
+
+	/* okay, do the critical port and serial init for our board */
+
+	this_board->port_init();
+
+	/* stick some hello messages on debug console */
+
+	puts("\n\n\nQi Bootloader  "stringify2(BUILD_HOST)" "
+				    stringify2(BUILD_VERSION)" "
+				    stringify2(BUILD_DATE)"\n");
+
+	puts("Copyright (C) 2008 Openmoko, Inc.\n");
+	puts("This is free software; see the source for copying conditions.\n"
+	     "There is NO warranty; not even for MERCHANTABILITY or "
+	     "FITNESS FOR A PARTICULAR PURPOSE.\n\n     Detected: ");
+
+	puts(this_board->name);
+	puts(", ");
+	board_variant = (this_board->get_board_variant)();
+	puts(board_variant->name);
+	puts("\n");
+
+	/*
+	 * jump to bootloader_second_phase() running from DRAM copy
+	 */
+	bootloader_second_phase();
+
+unhappy:
+	while(1)
+		blink_led();
+
+}