[U-Boot-Users] [PATCH] New ADS GraphicsClient+ board port
Brad Kemp
Brad.Kemp at Seranoa.com
Thu Mar 11 20:56:24 CET 2004
George,
What problem did you have with the CFI flash driver?
Brad
> -----Original Message-----
> From: George G. Davis [mailto:davis_g at comcast.net]
> Sent: Thursday, March 11, 2004 2:17 PM
> To: u-boot-users at lists.sourceforge.net
> Subject: [U-Boot-Users] [PATCH] New ADS GraphicsClient+ board port
>
>
> Greetings,
>
> I humbly submit this trivial board port for the ADS
> GraphicsClient+. This
> SA-1110 based board is actually EOL but it's still useful to
> me for Linux
> development/testing. I'll eventually make this thing use the
> common CFI
> flash support instead of the flash.c included here. But for now I was
> unable to get the CFI flash support working on this target.
>
> This patch is based on latest CVS HEAD +/- a few hours.
>
> Thanks!
>
> --
> Regards,
> George
>
>
> diff -x CVS -ruN u-boot.orig/board/gcplus/config.mk
> u-boot.new/board/gcplus/config.mk
> --- u-boot.orig/board/gcplus/config.mk 1969-12-31
> 19:00:00.000000000 -0500
> +++ u-boot.new/board/gcplus/config.mk 2003-11-06
> 00:36:23.000000000 -0500
> @@ -0,0 +1,13 @@
> +#
> +# ADS GCPlus board with SA1110 cpu
> +#
> +# The ADS GCPlus has 2 banks of 16 MiB SDRAM
> +#
> +# We use the ADS GCPlus Linux boot ROM to load U-Boot into SDRAM
> +# at c020'0000 and then move ourself to c8f0'0000. Basically, just
> +# install the U-Boot binary as you would the Linux zImage and then
> +# reap the benfits of more convenient Linux development cycles, i.e.
> +# bootp;tftp;bootm, repeat, etc.,.
> +#
> +
> +TEXT_BASE = 0xc8f00000
> diff -x CVS -ruN u-boot.orig/board/gcplus/flash.c
> u-boot.new/board/gcplus/flash.c
> --- u-boot.orig/board/gcplus/flash.c 1969-12-31
> 19:00:00.000000000 -0500
> +++ u-boot.new/board/gcplus/flash.c 2003-12-09
> 11:29:34.000000000 -0500
> @@ -0,0 +1,440 @@
> +/*
> + * (C) Copyright 2001
> + * Kyle Harris, Nexus Technologies, Inc. kharris at nexus-tech.net
> + *
> + * (C) Copyright 2001
> + * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
> + *
> + * 2003 (c) MontaVista Software, Inc.
> + *
> + * 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 <linux/byteorder/swab.h>
> +
> +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info
> for FLASH chips */
> +
> +/* Board support for 1 or 2 flash devices */
> +#define FLASH_PORT_WIDTH32
> +#undef FLASH_PORT_WIDTH16
> +
> +#ifdef FLASH_PORT_WIDTH16
> +#define FLASH_PORT_WIDTH ushort
> +#define FLASH_PORT_WIDTHV vu_short
> +#define SWAP(x) __swab16(x)
> +#else
> +#define FLASH_PORT_WIDTH ulong
> +#define FLASH_PORT_WIDTHV vu_long
> +#define SWAP(x) __swab32(x)
> +#endif
> +
> +#define FPW FLASH_PORT_WIDTH
> +#define FPWV FLASH_PORT_WIDTHV
> +
> +#define mb() __asm__ __volatile__ ("" : : : "memory")
> +
> +/*-----------------------------------------------------------
> ------------
> + * Functions
> + */
> +static ulong flash_get_size(FPW * addr, flash_info_t * info);
> +static int write_data(flash_info_t * info, ulong dest, FPW data);
> +static void flash_get_offsets(ulong base, flash_info_t * info);
> +void inline spin_wheel(void);
> +
> +/*-----------------------------------------------------------
> ------------
> + */
> +
> +unsigned long
> +flash_init(void)
> +{
> + int i;
> + ulong size = 0;
> +
> + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
> + switch (i) {
> + case 0:
> + flash_get_size((FPW *) PHYS_FLASH_1,
> &flash_info[i]);
> + flash_get_offsets(PHYS_FLASH_1, &flash_info[i]);
> + break;
> + default:
> + panic("configured too many flash banks!\n");
> + break;
> + }
> + size += flash_info[i].size;
> + }
> +
> + /* Protect monitor and environment sectors
> + */
> + flash_protect(FLAG_PROTECT_SET,
> + CFG_FLASH_BASE,
> + CFG_FLASH_BASE + monitor_flash_len - 1,
> &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_get_offsets(ulong base, flash_info_t * info)
> +{
> + int i;
> +
> + if (info->flash_id == FLASH_UNKNOWN) {
> + return;
> + }
> +
> + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
> + for (i = 0; i < info->sector_count; i++) {
> + info->start[i] = base + (i *
> PHYS_FLASH_SECT_SIZE);
> + info->protect[i] = 0;
> + }
> + }
> +}
> +
> +/*-----------------------------------------------------------
> ------------
> + */
> +void
> +flash_print_info(flash_info_t * info)
> +{
> + int i;
> +
> + if (info->flash_id == FLASH_UNKNOWN) {
> + printf("missing or unknown FLASH type\n");
> + return;
> + }
> +
> + switch (info->flash_id & FLASH_VENDMASK) {
> + case FLASH_MAN_INTEL:
> + printf("INTEL ");
> + break;
> + default:
> + printf("Unknown Vendor ");
> + break;
> + }
> +
> + switch (info->flash_id & FLASH_TYPEMASK) {
> + case FLASH_28F128J3A:
> + printf("28F128J3A\n");
> + break;
> + case FLASH_28F640J5:
> + printf("28F640J5\n");
> + break;
> + default:
> + printf("Unknown Chip Type\n");
> + break;
> + }
> +
> + printf(" Size: %ld MB in %d Sectors\n",
> + info->size >> 20, info->sector_count);
> +
> + printf(" Sector Start Addresses:");
> + for (i = 0; i < info->sector_count; ++i) {
> + if ((i % 5) == 0)
> + printf("\n ");
> + printf(" %08lX%s",
> + info->start[i], info->protect[i] ? "
> (RO)" : " ");
> + }
> + printf("\n");
> + return;
> +}
> +
> +/*
> + * The following code cannot be run from FLASH!
> + */
> +static ulong
> +flash_get_size(FPW * addr, flash_info_t * info)
> +{
> + volatile FPW value;
> + /* Write auto select command: read Manufacturer ID */
> + addr[0x5555] = (FPW) 0x00AA00AA;
> + addr[0x2AAA] = (FPW) 0x00550055;
> + addr[0x5555] = (FPW) 0x00900090;
> +
> + mb();
> + value = addr[0];
> +
> + switch (value) {
> +
> + case (FPW) INTEL_MANUFACT:
> + info->flash_id = FLASH_MAN_INTEL;
> + break;
> +
> + default:
> + info->flash_id = FLASH_UNKNOWN;
> + info->sector_count = 0;
> + info->size = 0;
> + addr[0] = (FPW) 0x00FF00FF; /* restore read mode */
> + return (0); /* no or unknown flash */
> + }
> +
> + mb();
> + value = addr[1]; /* device ID */
> + switch (value) {
> + case (FPW) INTEL_ID_28F128J3A:
> + info->flash_id += FLASH_28F128J3A;
> + info->sector_count = 128;
> + info->size = 0x02000000;
> + break; /* => 16 MB */
> + case (FPW) INTEL_ID_28F640J5:
> + info->flash_id += FLASH_28F640J5;
> + info->sector_count = 64;
> + info->size = 0x01000000;
> + break; /* => 16 MB */
> +
> + default:
> + info->flash_id = FLASH_UNKNOWN;
> + break;
> + }
> +
> + if (info->sector_count > CFG_MAX_FLASH_SECT) {
> + printf("** ERROR: sector count %d > max (%d) **\n",
> + info->sector_count, CFG_MAX_FLASH_SECT);
> + info->sector_count = CFG_MAX_FLASH_SECT;
> + }
> +
> + addr[0] = (FPW) 0x00FF00FF; /* restore read mode */
> +
> + return (info->size);
> +}
> +
> +/*-----------------------------------------------------------
> ------------
> + */
> +
> +int
> +flash_erase(flash_info_t * info, int s_first, int s_last)
> +{
> + int flag, prot, sect;
> + ulong type, start, last;
> + int rcode = 0;
> +
> + if ((s_first < 0) || (s_first > s_last)) {
> + if (info->flash_id == FLASH_UNKNOWN) {
> + printf("- missing\n");
> + } else {
> + printf("- no sectors to erase\n");
> + }
> + return 1;
> + }
> +
> + type = (info->flash_id & FLASH_VENDMASK);
> + if ((type != FLASH_MAN_INTEL)) {
> + printf("Can't erase unknown flash type %08lx -
> aborted\n",
> + info->flash_id);
> + return 1;
> + }
> +
> + prot = 0;
> + for (sect = s_first; sect <= s_last; ++sect) {
> + if (info->protect[sect]) {
> + prot++;
> + }
> + }
> +
> + if (prot) {
> + printf("- Warning: %d protected sectors will
> not be erased!\n",
> + prot);
> + } else {
> + printf("\n");
> + }
> +
> + start = get_timer(0);
> + last = start;
> +
> + /* Disable interrupts which might cause a timeout here */
> + flag = disable_interrupts();
> +
> + /* Start erase on unprotected sectors */
> + for (sect = s_first; sect <= s_last; sect++) {
> + if (info->protect[sect] == 0) { /* not protected */
> + FPWV *addr = (FPWV *) (info->start[sect]);
> + FPW status;
> +
> + printf("Erasing sector %2d ... ", sect);
> +
> + /* arm simple, non interrupt dependent timer */
> + reset_timer_masked();
> +
> + *addr = (FPW) 0x00500050; /*
> clear status register */
> + *addr = (FPW) 0x00200020; /*
> erase setup */
> + *addr = (FPW) 0x00D000D0; /*
> erase confirm */
> +
> + while (((status =
> + *addr) & (FPW) 0x00800080) !=
> + (FPW) 0x00800080) {
> + if (get_timer_masked() >
> CFG_FLASH_ERASE_TOUT) {
> + printf("Timeout\n");
> + *addr = (FPW)
> 0x00B000B0; /* suspend erase */
> + *addr = (FPW)
> 0x00FF00FF; /* reset to read mode */
> + rcode = 1;
> + break;
> + }
> + }
> +
> + *addr = (FPW) 0x00500050; /*
> clear status register cmd. */
> + *addr = (FPW) 0x00FF00FF; /*
> resest to read mode */
> +
> + printf(" done\n");
> + }
> + }
> + return rcode;
> +}
> +
> +/*-----------------------------------------------------------
> ------------
> + * Copy memory to flash, returns:
> + * 0 - OK
> + * 1 - write timeout
> + * 2 - Flash not erased
> + * 4 - Flash not identified
> + */
> +
> +int
> +write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
> +{
> + ulong cp, wp;
> + FPW data;
> + int count, i, l, rc, port_width;
> +
> + if (info->flash_id == FLASH_UNKNOWN) {
> + return 4;
> + }
> +/* get lower word aligned address */
> +#ifdef FLASH_PORT_WIDTH16
> + wp = (addr & ~1);
> + port_width = 2;
> +#else
> + wp = (addr & ~3);
> + port_width = 4;
> +#endif
> +
> + /*
> + * handle unaligned start bytes
> + */
> + if ((l = addr - wp) != 0) {
> + data = 0;
> + for (i = 0, cp = wp; i < l; ++i, ++cp) {
> + data = (data << 8) | (*(uchar *) cp);
> + }
> + for (; i < port_width && cnt > 0; ++i) {
> + data = (data << 8) | *src++;
> + --cnt;
> + ++cp;
> + }
> + for (; cnt == 0 && i < port_width; ++i, ++cp) {
> + data = (data << 8) | (*(uchar *) cp);
> + }
> +
> + if ((rc = write_data(info, wp, SWAP(data))) != 0) {
> + return (rc);
> + }
> + wp += port_width;
> + }
> +
> + /*
> + * handle word aligned part
> + */
> + count = 0;
> + while (cnt >= port_width) {
> + data = 0;
> + for (i = 0; i < port_width; ++i) {
> + data = (data << 8) | *src++;
> + }
> + if ((rc = write_data(info, wp, SWAP(data))) != 0) {
> + return (rc);
> + }
> + wp += port_width;
> + cnt -= port_width;
> + if (count++ > 0x800) {
> + spin_wheel();
> + count = 0;
> + }
> + }
> +
> + if (cnt == 0) {
> + return (0);
> + }
> +
> + /*
> + * handle unaligned tail bytes
> + */
> + data = 0;
> + for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) {
> + data = (data << 8) | *src++;
> + --cnt;
> + }
> + for (; i < port_width; ++i, ++cp) {
> + data = (data << 8) | (*(uchar *) cp);
> + }
> +
> + return (write_data(info, wp, SWAP(data)));
> +}
> +
> +/*-----------------------------------------------------------
> ------------
> + * Write a word or halfword to Flash, returns:
> + * 0 - OK
> + * 1 - write timeout
> + * 2 - Flash not erased
> + */
> +static int
> +write_data(flash_info_t * info, ulong dest, FPW data)
> +{
> + FPWV *addr = (FPWV *) dest;
> + ulong status;
> + int flag;
> +
> + /* Check if Flash is (sufficiently) erased */
> + if ((*addr & data) != data) {
> + printf("not erased at %08lx (%x)\n", (ulong)
> addr, *addr);
> + return (2);
> + }
> + /* Disable interrupts which might cause a timeout here */
> + flag = disable_interrupts();
> +
> + *addr = (FPW) 0x00400040; /* write setup */
> + *addr = data;
> +
> + /* arm simple, non interrupt dependent timer */
> + reset_timer_masked();
> +
> + /* wait while polling the status register */
> + while (((status = *addr) & (FPW) 0x00800080) != (FPW)
> 0x00800080) {
> + if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) {
> + *addr = (FPW) 0x00FF00FF; /*
> restore read mode */
> + return (1);
> + }
> + }
> +
> + *addr = (FPW) 0x00FF00FF; /* restore read mode */
> +
> + return (0);
> +}
> +
> +void inline
> +spin_wheel(void)
> +{
> + static int p = 0;
> + static char w[] = "\\/-";
> +
> + printf("\010%c", w[p]);
> + (++p == 3) ? (p = 0) : 0;
> +}
> diff -x CVS -ruN u-boot.orig/board/gcplus/gcplus.c
> u-boot.new/board/gcplus/gcplus.c
> --- u-boot.orig/board/gcplus/gcplus.c 1969-12-31
> 19:00:00.000000000 -0500
> +++ u-boot.new/board/gcplus/gcplus.c 2004-03-09
> 21:52:57.000000000 -0500
> @@ -0,0 +1,73 @@
> +/*
> + * (C) Copyright 2002
> + * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
> + * Marius Groeger <mgroeger at sysgo.de>
> + *
> + * 2003-2004 (c) MontaVista Software, Inc.
> + *
> + * 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 <SA-1100.h>
> +/*
> --------------------------------------------------------------
> ----------- */
> +
> +/*
> + * Miscelaneous platform dependent initialisations
> + */
> +
> +int
> +board_init(void)
> +{
> + DECLARE_GLOBAL_DATA_PTR;
> +
> + gd->bd->bi_arch_number = 29; /* ADS
> GraphicsClientPlus Board */
> +
> + gd->bd->bi_boot_params = 0xc000003c; /* Weird address? */
> +
> + /* Most of the ADS GCPlus I/O is connected to Static nCS2.
> + * So I'm brute forcing nCS2 timiming here for worst case.
> + */
> + MSC1 &= ~0xFFFF;
> + MSC1 |= 0x8649;
> +
> + /* Nothing is connected to Static nCS4 or nCS5. But I'm using
> + * nCS4 as a paranoia safe guard to force nCS2, nOE; nWE high
> + * after accessing I/O via (non-VLIO) nCS2. What can I say, I'm
> + * paranoid and lack decent tools to alleviate my fear. I sure
> + * do wish I had a logic analyzer. : (
> + */
> +
> + MSC2 = 0xfff9fff9;
> +
> + return 0;
> +}
> +
> +int
> +dram_init(void)
> +{
> + DECLARE_GLOBAL_DATA_PTR;
> +
> + gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
> + gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
> + gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
> + gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
> +
> + return (0);
> +}
> diff -x CVS -ruN u-boot.orig/board/gcplus/Makefile
> u-boot.new/board/gcplus/Makefile
> --- u-boot.orig/board/gcplus/Makefile 1969-12-31
> 19:00:00.000000000 -0500
> +++ u-boot.new/board/gcplus/Makefile 2004-03-09
> 21:50:31.000000000 -0500
> @@ -0,0 +1,49 @@
> +#
> +# (C) Copyright 2000
> +# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
> +#
> +# 2003 (c) MontaVista Software, Inc.
> +#
> +# 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 $(TOPDIR)/config.mk
> +
> +LIB = lib$(BOARD).a
> +
> +OBJS := gcplus.o flash.o
> +SOBJS := memsetup.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 CVS -ruN u-boot.orig/board/gcplus/memsetup.S
> u-boot.new/board/gcplus/memsetup.S
> --- u-boot.orig/board/gcplus/memsetup.S 1969-12-31
> 19:00:00.000000000 -0500
> +++ u-boot.new/board/gcplus/memsetup.S 2004-03-09
> 23:12:53.000000000 -0500
> @@ -0,0 +1,77 @@
> +/*
> + * Memory Setup stuff - taken from blob memsetup.S
> + *
> + * Copyright (C) 1999 2000 2001 Erik Mouw
> (J.A.K.Mouw at its.tudelft.nl) and
> + * Jan-Derk Bakker (J.D.Bakker at its.tudelft.nl)
> + * 2003-2004 (c) MontaVista Software, Inc.
> + *
> + * 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"
> +#include "version.h"
> +
> +
> + .globl memsetup
> +memsetup:
> + /* The ADS GC+ for Linux Boot Rom Ver. 1.73 does memory
> init for us.
> + * However the darn thing leaves the MMU enabled before
> handing control
> + * over to us. So we need to disable the MMU and we use memsetup
> + * to do it.
> + */
> +
> +@ The following code segment was borrowed with gratitude from:
> +@ linux-2.4.19-rmk7/arch/arm/boot/compressed/head-sa1100.S
> +
> + @ Data cache might be active.
> + @ Be sure to flush kernel binary out of the cache,
> + @ whatever state it is, before it is turned off.
> + @ This is done by fetching through currently executed
> + @ memory to be sure we hit the same cache.
> + bic r2, pc, #0x1f
> + add r3, r2, #0x4000 @ 16 kb is quite enough...
> +1: ldr r0, [r2], #32
> + teq r2, r3
> + bne 1b
> + mcr p15, 0, r0, c7, c10, 4 @ drain WB
> + mcr p15, 0, r0, c7, c7, 0 @ flush I & D caches
> +
> + @ disabling MMU and caches
> + mrc p15, 0, r0, c1, c0, 0 @ read control reg
> + bic r0, r0, #0x0d @ clear WB, DC, MMU
> + bic r0, r0, #0x1000 @ clear Icache
> + mcr p15, 0, r0, c1, c0, 0
> +
> + nop
> + nop
> + nop
> + nop
> + nop
> +
> + b 2f
> +2:
> + nop
> + nop
> + nop
> + nop
> + nop
> +
> +
> + mov pc, lr
> diff -x CVS -ruN u-boot.orig/board/gcplus/u-boot.lds
> u-boot.new/board/gcplus/u-boot.lds
> --- u-boot.orig/board/gcplus/u-boot.lds 1969-12-31
> 19:00:00.000000000 -0500
> +++ u-boot.new/board/gcplus/u-boot.lds 2004-03-06
> 16:03:44.000000000 -0500
> @@ -0,0 +1,57 @@
> +/*
> + * (C) Copyright 2000
> + * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
> + * 2003 (c) MontaVista Software, Inc.
> + *
> + * 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
> +{
> + . = 0x00000000;
> +
> + . = ALIGN(4);
> + .text :
> + {
> + cpu/sa1100/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 CVS -ruN u-boot.orig/include/configs/gcplus.h
> u-boot.new/include/configs/gcplus.h
> --- u-boot.orig/include/configs/gcplus.h 1969-12-31
> 19:00:00.000000000 -0500
> +++ u-boot.new/include/configs/gcplus.h 2004-03-11
> 09:41:31.000000000 -0500
> @@ -0,0 +1,174 @@
> +/*
> + * (C) Copyright 2002
> + * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
> + * Marius Groeger <mgroeger at sysgo.de>
> + *
> + * 2003-2004 (c) MontaVista Software, Inc.
> + *
> + * Configuation settings for the ADS GraphicsClient+ board.
> + *
> + * 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
> + */
> +
> +#ifndef __CONFIG_H
> +#define __CONFIG_H
> +
> +#undef DEBUG
> +
> +/*
> + * The ADS GCPlus Linux boot ROM loads U-Boot into RAM at 0xc0200000.
> + * We don't actually init RAM in this case since we're using
> U-Boot as
> + * an secondary boot loader during Linux kernel development
> and testing,
> + * e.g. bootp/tftp download of the kernel is a far more convenient
> + * when testing new kernels on this target. However the ADS
> GCPlus Linux
> + * boot ROM leaves the MMU enabled when it passes control to
> U-Boot. So
> + * we use memsetup (CONFIG_INIT_CRITICAL) to remedy that problem.
> + */
> +#define CONFIG_INIT_CRITICAL
> +
> +/*
> + * High Level Configuration Options
> + * (easy to change)
> + */
> +#define CONFIG_SA1110 1 /* This is an
> SA1100 CPU */
> +#define CONFIG_GCPLUS 1 /* on an ADS
> GCPlus Board */
> +
> +#undef CONFIG_USE_IRQ /* we don't
> need IRQ/FIQ stuff */
> +
> +#define CONFIG_CMDLINE_TAG 1 /* enable passing of
> ATAGs */
> +#define CONFIG_SETUP_MEMORY_TAGS 1
> +#define CONFIG_INITRD_TAG 1
> +
> +/*
> + * Size of malloc() pool
> + */
> +#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
> +#define CFG_GBL_DATA_SIZE 128 /* size rsrvd for
> initial data */
> +
> +
> +/*
> + * Hardware drivers
> + */
> +#define CONFIG_DRIVER_LAN91C96 /* we have an SMC9194
> on-board */
> +#define CONFIG_LAN91C96_BASE 0x100e0000
> +
> +/*
> + * select serial console configuration
> + */
> +#define CONFIG_SERIAL3 1 /* we use SERIAL 3 on
> ADS GCPlus */
> +
> +/* allow to overwrite serial and ethaddr */
> +#define CONFIG_ENV_OVERWRITE
> +
> +#define CONFIG_BAUDRATE 38400
> +
> +#define CONFIG_COMMANDS (CONFIG_CMD_DFL | CFG_CMD_DHCP)
> +#define CONFIG_BOOTP_MASK CONFIG_BOOTP_DEFAULT
> +
> +/* this must be included AFTER the definition of
> CONFIG_COMMANDS (if any) */
> +#include <cmd_confdefs.h>
> +
> +#define CONFIG_BOOTDELAY 3
> +#define CONFIG_BOOTARGS "console=ttySA0,38400n8
> mtdparts=sa1100-flash:1m at 0(zImage),3m at 1m(ramdisk.gz),12m at 4m(us
> erfs) root=/dev/nfs ip=bootp"
> +#define CONFIG_BOOTCOMMAND "bootp;tftp;bootm"
> +#define CFG_AUTOLOAD "n" /* No autoload */
> +
> +#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
> +#define CONFIG_KGDB_BAUDRATE 38400 /* speed to run
> kgdb serial port */
> +#define CONFIG_KGDB_SER_INDEX 2 /*
> which serial port to use */
> +#endif
> +
> +/*
> + * Miscellaneous configurable options
> + */
> +#define CFG_LONGHELP /*
> undef to save memory */
> +#define CFG_PROMPT "ADS GCPlus # " /*
> Monitor Command Prompt */
> +#define CFG_CBSIZE 256 /*
> Console I/O Buffer Size */
> +#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16)
> /* Print Buffer Size */
> +#define CFG_MAXARGS 16 /* max
> number of command args */
> +#define CFG_BARGSIZE CFG_CBSIZE /* Boot
> Argument Buffer Size */
> +
> +#define CFG_MEMTEST_START 0xc0400000 /* memtest
> works on */
> +#define CFG_MEMTEST_END 0xc0800000 /* 4
> ... 8 MB in DRAM */
> +
> +#undef CFG_CLKS_IN_HZ /* everything, incl
> board info, in Hz */
> +
> +#define CFG_LOAD_ADDR 0xc0000000 /*
> default load address */
> +
> +#define CFG_HZ 3686400 /*
> incrementer freq: 3.6864 MHz */
> +#define CFG_CPUSPEED 0x0a /* set core
> clock to 206MHz */
> +
> + /* valid baudrates */
> +#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
> +
> +/*-----------------------------------------------------------
> ------------
> + * Stack sizes
> + *
> + * The stack sizes are set up in start.S using the settings below
> + */
> +#define CONFIG_STACKSIZE (128*1024) /* regular stack */
> +#ifdef CONFIG_USE_IRQ
> +#define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */
> +#define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */
> +#endif
> +
> +/*-----------------------------------------------------------
> ------------
> + * Physical Memory Map
> + */
> +#define CONFIG_NR_DRAM_BANKS 2 /* we have 2 banks of DRAM */
> +#define PHYS_SDRAM_1 0xc0000000 /* SDRAM Bank #1 */
> +#define PHYS_SDRAM_1_SIZE 0x01000000 /* 16 MB */
> +#define PHYS_SDRAM_2 0xc8000000 /* SDRAM Bank #2 */
> +#define PHYS_SDRAM_2_SIZE 0x01000000 /* 16 MB */
> +
> +
> +#define PHYS_FLASH_1 0x08000000 /* Flash Bank #1 */
> +#define PHYS_FLASH_SIZE 0x00800000 /* 8 MB */
> +#define PHYS_FLASH_BANK_SIZE 0x01000000 /* 16 MB Banks */
> +#define PHYS_FLASH_SECT_SIZE 0x00040000 /* 256 KB sectors (x2) */
> +
> +#define CFG_FLASH_BASE PHYS_FLASH_1
> +
> +/*-----------------------------------------------------------
> ------------
> + * FLASH and environment organization
> + */
> +#if 1
> +#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
> +#define CFG_MAX_FLASH_SECT 128 /* max number of
> sectors on one chip */
> +
> +/* timeout values are in ticks */
> +#define CFG_FLASH_ERASE_TOUT (2*CFG_HZ) /* Timeout for Flash Erase */
> +#define CFG_FLASH_WRITE_TOUT (2*CFG_HZ) /* Timeout for Flash Write */
> +#else
> +/* REVISIT: This doesn't work on ADS GCPlus just yet:
> +#define CFG_FLASH_CFI 1 /* flash is CFI
> conformant */
> +#define CFG_FLASH_CFI_DRIVER 1 /* use common cfi
> driver */
> +#define CFG_FLASH_USE_BUFFER_WRITE 1 /* use buffered
> writes (20x faster) */
> +#define CFG_MAX_FLASH_BANKS 1 /* max # of memory
> banks */
> +#define CFG_FLASH_INCREMENT 0 /* there is only one
> bank */
> +#define CFG_MAX_FLASH_SECT 128 /* max # of sectors
> on one chip */
> +//#define CFG_FLASH_PROTECTION 1 /* hardware flash
> protection */
> +#define CFG_FLASH_BANKS_LIST { CFG_FLASH_BASE }
> +#endif
> +
> +#define CFG_ENV_IS_IN_FLASH 1
> +#define CFG_ENV_ADDR (PHYS_FLASH_1 +
> PHYS_FLASH_SECT_SIZE) /* Addr of Environment Sector */
> +#define CFG_ENV_SIZE PHYS_FLASH_SECT_SIZE
> +
> +#endif /* __CONFIG_H */
> diff -x CVS -ruN u-boot.orig/Makefile u-boot.new/Makefile
> --- u-boot.orig/Makefile 2004-03-11 14:00:20.000000000 -0500
> +++ u-boot.new/Makefile 2004-03-09 23:16:52.000000000 -0500
> @@ -912,6 +912,9 @@
> shannon_config : unconfig
> @./mkconfig $(@:_config=) arm sa1100 shannon
>
> +gcplus_config : unconfig
> + @./mkconfig $(@:_config=) arm sa1100 gcplus
> +
>
> ##############################################################
> ###########
> ## ARM92xT Systems
>
> ##############################################################
> ###########
>
>
> -------------------------------------------------------
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