u-boot-1.1.4-imx21-jk1.patch

针对freescale imx21的linux2.6的补丁。因为官方只提供2.4内核

+        str     r0, [r1]
+        ldr     r2, =0xC0200000         @ precharge all
+        ldr     r0, [r2]
+        bl      mem_delay
+
+	/* JEDEC 3.11.5.1-7: issue 8 or more autorefresh commands */
+
+        ldr     r0, =0xA2120300         @ auto-refresh command
+        str     r0, [r1]
+        ldr     r2, =0xC0000000         @ special read from SDRAM
+        ldr     r0, [r2]
+        ldr     r0, [r2]
+        ldr     r0, [r2]
+        ldr     r0, [r2]
+        ldr     r0, [r2]
+        ldr     r0, [r2]
+        ldr     r0, [r2]
+        ldr     r0, [r2]
+
+	/* Set mode register command */
+        ldr     r0, =0xB2120300         @ set mode register
+        str     r0, [r1]
+
+	/* 
+ 	 * 0x119800 >> (9cols + 2) = 0x233
+	 *
+ 	 * Burst Length 	8 	(0x3) 
+	 * CAS Latency 		3 	(0x30)
+	 * Write Burst		enabled	(0x200)
+	 *  
+	 */
+        ldr     r2, =0xC0119800         @ mode register command
+        ldr     r0, [r2]
+        bl      mem_delay
+
+	/* Goto normal mode */
+        ldr     r0, =0x8212F339         @ CAS 3
+        str     r0, [r1]                @ set normal mode
+
+	/* led */
+	ldr     r0, =OBR_BASE
+        ldrh    r1, [r0]
+        orr     r1, r1, #(OBR_LED3_ON)                  /* start with LED 3 on */
+        bic     r1, r1, #(OBR_LED4_ON)                  /* start with LED 4 off */
+        strh    r1, [r0]
+
+        mov     pc, r5                  @ split
+
+
+/*
+ *  spin for a while.  we need to wait at least 200 usecs.
+ */
+mem_delay:
+        mov     r6, lr                  @ save return addr
+
+        mov     r4, #0x4000             @ way longer than 200 usec
+spin:   subs    r4, r4, #1
+        bne     spin
+
+        mov     pc, r6
+
diff -X linux/Documentation/dontdiff -Nur u-boot-1.1.4/board/fs3/Makefile u-boot-1.1.4.imx21/board/fs3/Makefile
--- u-boot-1.1.4/board/fs3/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ u-boot-1.1.4.imx21/board/fs3/Makefile	2006-07-03 20:00:37.000000000 +0200
@@ -0,0 +1,48 @@
+#
+# board/fs3/Makefile
+#
+# (c) Copyright 2004
+# Techware Information Technology, Inc.
+# http://www.techware.com.tw/
+#
+# Ming-Len Wu <[e-mail]>
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	:= fs3.o flash.o
+SOBJS	:= lowlevel_init.o
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) crv $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+-include .depend
+
+#########################################################################
diff -X linux/Documentation/dontdiff -Nur u-boot-1.1.4/board/fs3/u-boot.lds u-boot-1.1.4.imx21/board/fs3/u-boot.lds
--- u-boot-1.1.4/board/fs3/u-boot.lds	1970-01-01 01:00:00.000000000 +0100
+++ u-boot-1.1.4.imx21/board/fs3/u-boot.lds	2006-07-03 19:52:13.000000000 +0200
@@ -0,0 +1,57 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, [e-mail].
+ *
+ * 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
+ *
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0xc8000000;
+
+	. = ALIGN(4);
+	.text      :
+	{
+		cpu/arm926ejs/start.o	(.text)
+		*(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(.rodata) }
+
+	. = ALIGN(4);
+	.data : { *(.data) }
+
+	. = ALIGN(4);
+	.got : { *(.got) }
+
+	. = .;
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	__u_boot_cmd_end = .;
+
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss : { *(.bss) }
+	_end = .;
+}
diff -X linux/Documentation/dontdiff -Nur u-boot-1.1.4/board/mx21ads/cmd_lcdinit.c u-boot-1.1.4.imx21/board/mx21ads/cmd_lcdinit.c
--- u-boot-1.1.4/board/mx21ads/cmd_lcdinit.c	1970-01-01 01:00:00.000000000 +0100
+++ u-boot-1.1.4.imx21/board/mx21ads/cmd_lcdinit.c	2006-07-04 17:57:07.000000000 +0200
@@ -0,0 +1,67 @@
+#include <common.h>
+#include <command.h>
+#include <asm/arch/imx21-regs.h>
+
+void lcdinit()
+{
+	memset(0xC3FC0000,0,76800*2);
+	imx_gpio_mode(PD15_PF_LD0);
+	imx_gpio_mode(PD16_PF_LD1);
+	imx_gpio_mode(PD17_PF_LD2);
+	imx_gpio_mode(PD18_PF_LD3);
+	imx_gpio_mode(PD19_PF_LD4);
+	imx_gpio_mode(PD20_PF_LD5);
+	imx_gpio_mode(PD21_PF_LD6);
+	imx_gpio_mode(PD22_PF_LD7);
+	imx_gpio_mode(PD23_PF_LD8);
+	imx_gpio_mode(PD24_PF_LD9);
+	imx_gpio_mode(PD25_PF_LD10);
+	imx_gpio_mode(PD26_PF_LD11);
+	imx_gpio_mode(PD27_PF_LD12);
+	imx_gpio_mode(PD28_PF_LD13);
+	imx_gpio_mode(PD29_PF_LD14);
+	imx_gpio_mode(PD30_PF_LD15);
+	imx_gpio_mode(PD14_PF_FLM_VSYNC);
+	imx_gpio_mode(PD13_PF_LP_HSYNC);
+	imx_gpio_mode(PD6_PF_LSCLK);
+	imx_gpio_mode(GPIO_PORTD | GPIO_OUT | GPIO_GPIO | 12);
+	imx_gpio_mode(PD11_PF_CONTRAST);
+	imx_gpio_mode(PD10_PF_SPL_SPR);	
+
+	LCDC_RMCR = 0x00000000;
+	LCDC_PCR = 0x78000005;
+	LCDC_HCR = 0x08000000;
+	LCDC_VCR = 0x08000000;
+
+	LCDC_PWMR = 0x00000391;   /* contrast */
+	LCDC_SSA  = 0x0bfc0000;   /* physical screen start address */
+
+	LCDC_SIZE = 0x014000F0;   /* size*/
+
+	LCDC_VPW  = 0x000000A0;   /* Virtual Page Width Register */
+	LCDC_POS  = 0x00000000;   /* panning offset 0 (0 pixel offset) */
+	
+	/* disable Cursor */
+	LCDC_CPOS  = 0x00000000;
+
+	/* fixed burst length */
+	LCDC_DMACR = 0x00030008;
+
+	/* enable LCD */
+	//DR(3)   |= 0x00001000;
+	LCDC_RMCR = 0x00000002;
+}
+
+int
+do_lcdinit (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	printf ("## initializing LCD...\n");
+	lcdinit();
+	return 0;
+}
+
+U_BOOT_CMD(
+	lcdinit, 2, 0,	do_lcdinit,
+	"lcdinit - initialize LCD (mx1fs2 specific)\n",
+	"\n"
+);
diff -X linux/Documentation/dontdiff -Nur u-boot-1.1.4/board/mx21ads/config.mk u-boot-1.1.4.imx21/board/mx21ads/config.mk
--- u-boot-1.1.4/board/mx21ads/config.mk	1970-01-01 01:00:00.000000000 +0100
+++ u-boot-1.1.4.imx21/board/mx21ads/config.mk	2006-05-03 15:02:33.000000000 +0200
@@ -0,0 +1,23 @@
+#
+# board/mx21ads/config.mk
+#
+# (C) Copyright 2006 Jochen Karrer
+#
+#
+# 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
+
+TEXT_BASE = 0xC0400000
+
diff -X linux/Documentation/dontdiff -Nur u-boot-1.1.4/board/mx21ads/flash.c u-boot-1.1.4.imx21/board/mx21ads/flash.c
--- u-boot-1.1.4/board/mx21ads/flash.c	1970-01-01 01:00:00.000000000 +0100
+++ u-boot-1.1.4.imx21/board/mx21ads/flash.c	2006-05-03 15:25:14.000000000 +0200
@@ -0,0 +1,663 @@
+/*
+ * (C) 2000-2004 Wolfgang Denk, DENX Software Engineering, [e-mail].
+ * (C) 2003 August Hoeraendl, Logotronic GmbH
+ *
+ * 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
+ */
+
+#undef CONFIG_FLASH_16BIT
+
+#include <common.h>
+
+#define FLASH_BANK_SIZE MX21ADS_FLASH_BANK_SIZE
+#define MAIN_SECT_SIZE  MX21ADS_FLASH_SECT_SIZE
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips   */
+
+/*
+ * NOTE - CONFIG_FLASH_16BIT means the CPU interface is 16-bit, it
+ *        has nothing to do with the flash chip being 8-bit or 16-bit.
+ */
+#ifdef CONFIG_FLASH_16BIT
+typedef unsigned short FLASH_PORT_WIDTH;
+typedef volatile unsigned short FLASH_PORT_WIDTHV;
+
+#define	FLASH_ID_MASK	0xFFFF
+#else
+typedef unsigned long FLASH_PORT_WIDTH;
+typedef volatile unsigned long FLASH_PORT_WIDTHV;
+
+#define	FLASH_ID_MASK	0xFFFFFFFF
+#endif
+
+#define FPW	FLASH_PORT_WIDTH
+#define FPWV	FLASH_PORT_WIDTHV
+
+#define ORMASK(size) ((-size) & OR_AM_MSK)
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+#if 0
+static ulong flash_get_size(FPWV * addr, flash_info_t * info);
+static void flash_get_offsets(ulong base, flash_info_t * info);
+#endif
+static void flash_reset(flash_info_t * info);
+static int write_word_intel(flash_info_t * info, FPWV * dest, FPW data);
+static int write_word_amd(flash_info_t * info, FPWV * dest, FPW data);
+#define write_word(in, de, da)   write_word_amd(in, de, da)
+#ifdef CFG_FLASH_PROTECTION
+static void flash_sync_real_protect(flash_info_t * info);
+#endif
+
+/*-----------------------------------------------------------------------
+ * flash_init()
+ *
+ * sets up flash_info and returns size of FLASH (bytes)
+ */
+ulong
+flash_init(void)
+{
+	int i, j;
+	ulong size = 0;
+
+	for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+		ulong flashbase = 0;
+		flash_info[i].flash_id =
+		    (FLASH_MAN_AMD & FLASH_VENDMASK) |
+		    (FLASH_AM640U & FLASH_TYPEMASK);
+		flash_info[i].size = FLASH_BANK_SIZE;
+		flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
+		memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
+		switch (i) {
+		case 0:
+			flashbase = MX21ADS_FLASH_BASE;
+			break;
+		default:
+			panic("configured too many flash banks!\n");
+			break;
+		}
+		for (j = 0; j < flash_info[i].sector_count; j++) {
+			flash_info[i].start[j] = flashbase + j * MAIN_SECT_SIZE;
+		}
+		size += flash_info[i].size;
+	}
+
+	/* Protect monitor and environment sectors */
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_FLASH_BASE,
+		      CFG_FLASH_BASE + _bss_start - _armboot_start,
+		      &flash_info[0]);
+
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_ENV_ADDR,
+		      CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
+
+	return size;
+}
+
+/*-----------------------------------------------------------------------
+ */
+static void
+flash_reset(flash_info_t * info)
+{
+	FPWV *base = (FPWV *) (info->start[0]);
+
+	/* Put FLASH back in read mode */
+	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
+		*base = (FPW) 0x00FF00FF;	/* Intel Read Mode */
+	else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD)
+		*base = (FPW) 0x00F000F0;	/* AMD Read Mode */
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+void
+flash_print_info(flash_info_t * info)
+{
+	int i;
+	uchar *boottype;
+	uchar *bootletter;
+	uchar *fmt;
+	uchar botbootletter[] = "B";
+	uchar topbootletter[] = "T";
+	uchar botboottype[] = "bottom boot sector";
+	uchar topboottype[] = "top boot sector";
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		printf("missing or unknown FLASH type\n");
+		return;
+	}
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case FLASH_MAN_AMD:
+		printf("AMD ");
+		break;
+	case FLASH_MAN_BM:
+		printf("BRIGHT MICRO ");
+		break;
+	case FLASH_MAN_FUJ:
+		printf("FUJITSU ");
+		break;
+	case FLASH_MAN_SST:
+		printf("SST ");
+		break;
+	case FLASH_MAN_STM:
+		printf("STM ");
+		break;
+	case FLASH_MAN_INTEL:
+		printf("INTEL ");
+		break;
+	default:
+		printf("Unknown Vendor ");
+		break;
+	}
+
+	/* check for top or bottom boot, if it applies */
+	if (info->flash_id & FLASH_BTYPE) {
+		boottype = botboottype;
+		bootletter = botbootletter;
+	} else {
+		boottype = topboottype;
+		bootletter = topbootletter;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_AM640U:
+		fmt = "29LV641D (64 Mbit, uniform sectors)\n";
+		break;
+	case FLASH_28F800C3B:
+	case FLASH_28F800C3T:
+		fmt = "28F800C3%s (8 Mbit, %s)\n";
+		break;
+	case FLASH_INTEL800B:
+	case FLASH_INTEL800T:
+		fmt = "28F800B3%s (8 Mbit, %s)\n";
+		break;
+	case FLASH_28F160C3B:
+	case FLASH_28F160C3T:
+		fmt = "28F160C3%s (16 Mbit, %s)\n";
+		break;
+	case FLASH_INTEL160B:
+	case FLASH_INTEL160T:
+		fmt = "28F160B3%s (16 Mbit, %s)\n";
+		break;
+	case FLASH_28F320C3B:
+	case FLASH_28F320C3T:
+		fmt = "28F320C3%s (32 Mbit, %s)\n";
+		break;
+	case FLASH_INTEL320B: