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-rw-r--r--board/eric/Makefile51
-rw-r--r--board/eric/eric.c203
-rw-r--r--board/eric/eric.h44
-rw-r--r--board/eric/flash.c1131
-rw-r--r--board/eric/init.S359
5 files changed, 0 insertions, 1788 deletions
diff --git a/board/eric/Makefile b/board/eric/Makefile
deleted file mode 100644
index c690e33..0000000
--- a/board/eric/Makefile
+++ /dev/null
@@ -1,51 +0,0 @@
-#
-# (C) Copyright 2001-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# 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 = $(obj)lib$(BOARD).o
-
-COBJS = $(BOARD).o flash.o
-SOBJS = init.o
-
-SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS := $(addprefix $(obj),$(COBJS))
-SOBJS := $(addprefix $(obj),$(SOBJS))
-
-$(LIB): $(OBJS) $(SOBJS)
- $(call cmd_link_o_target, $(OBJS) $(SOBJS))
-
-clean:
- rm -f $(SOBJS) $(OBJS)
-
-distclean: clean
- rm -f $(LIB) core *.bak $(obj).depend
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/board/eric/eric.c b/board/eric/eric.c
deleted file mode 100644
index d431204..0000000
--- a/board/eric/eric.c
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * 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 <i2c.h>
-#include "eric.h"
-#include <asm/processor.h>
-
-#define PPC405GP_GPIO0_OR 0xef600700 /* GPIO Output */
-#define PPC405GP_GPIO0_TCR 0xef600704 /* GPIO Three-State Control */
-#define PPC405GP_GPIO0_ODR 0xef600718 /* GPIO Open Drain */
-#define PPC405GP_GPIO0_IR 0xef60071c /* GPIO Input */
-
-void sdram_init(void);
-
-int board_early_init_f (void)
-{
-
- /*-------------------------------------------------------------------------+
- | Interrupt controller setup for the ERIC board.
- | Note: IRQ 0-15 405GP internally generated; active high; level sensitive
- | IRQ 16 405GP internally generated; active low; level sensitive
- | IRQ 17-24 RESERVED
- | IRQ 25 (EXT IRQ 0) FLASH; active low; level sensitive
- | IRQ 26 (EXT IRQ 1) PHY ; active low; level sensitive
- | IRQ 27 (EXT IRQ 2) HOST FAIL, active low; level sensitive
- | indicates NO Power or HOST RESET active
- | check GPIO7 (HOST RESET#) and GPIO8 (NO Power#)
- | for real IRQ source
- | IRQ 28 (EXT IRQ 3) HOST; active high; level sensitive
- | IRQ 29 (EXT IRQ 4) PCI INTC#; active low; level sensitive
- | IRQ 30 (EXT IRQ 5) PCI INTB#; active low; level sensitive
- | IRQ 31 (EXT IRQ 6) PCI INTA#; active low; level sensitive
- | -> IRQ6 Pin is NOW GPIO23 and can be activateted by setting
- | PPC405GP_GPIO0_TCR Bit 0 = 1 (driving the output as defined in PPC405GP_GPIO0_OR,
- | else tristate)
- | Note for ERIC board:
- | An interrupt taken for the HOST (IRQ 28) indicates that
- | the HOST wrote a "1" to one of the following locations
- | - VGA CRT_GPIO0 (if R1216 is loaded)
- | - VGA CRT_GPIO1 (if R1217 is loaded)
- |
- +-------------------------------------------------------------------------*/
-
- mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
- mtdcr (UIC0ER, 0x00000000); /* disable all ints */
- mtdcr (UIC0CR, 0x00000000); /* set all SMI to be non-critical */
- mtdcr (UIC0PR, 0xFFFFFF88); /* set int polarities; IRQ3 to 1 */
- mtdcr (UIC0TR, 0x10000000); /* set int trigger levels, UART0 is EDGE */
- mtdcr (UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority */
- mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
-
- mtdcr (CPC0_CR0, 0x00002000); /* set IRQ6 as GPIO23 to generate an interrupt request to the PCP2PCI bridge */
-
- out32 (PPC405GP_GPIO0_OR, 0x60000000); /*fixme is SMB_INT high or low active??; IRQ6 is GPIO23 output */
- out32 (PPC405GP_GPIO0_TCR, 0x7E400000);
-
- return 0;
-}
-
-
-/* ------------------------------------------------------------------------- */
-
-/*
- * Check Board Identity:
- */
-
-int checkboard (void)
-{
- char *s = getenv ("serial#");
- char *e;
-
- puts ("Board: ");
-
- if (!s || strncmp (s, "ERIC", 9)) {
- puts ("### No HW ID - assuming ERIC");
- } else {
- for (e = s; *e; ++e) {
- if (*e == ' ')
- break;
- }
-
- for (; s < e; ++s) {
- putc (*s);
- }
- }
-
-
- putc ('\n');
-
- return (0);
-}
-
-
-/* ------------------------------------------------------------------------- */
-/* ------------------------------------------------------------------------- */
-/* ------------------------------------------------------------------------- */
-/*
- initdram(int board_type) reads EEPROM via I2c. EEPROM contains all of
- the necessary info for SDRAM controller configuration
-*/
-/* ------------------------------------------------------------------------- */
-/* ------------------------------------------------------------------------- */
-phys_size_t initdram (int board_type)
-{
-#ifndef CONFIG_ERIC
- int i;
- unsigned char datain[128];
- int TotalSize;
-#endif
-
- /*
- * ToDo: Move the asm init routine sdram_init() to this C file,
- * or even better use some common ppc4xx code available
- * in arch/powerpc/cpu/ppc4xx
- */
- sdram_init();
-
-#ifdef CONFIG_ERIC
- /*
- * we have no EEPROM on ERIC
- * so let init.S do the init job for SDRAM
- * and simply return 32MByte here
- */
- return (CONFIG_SYS_SDRAM_SIZE * 1024 * 1024);
-#else
-
- /* Read Serial Presence Detect Information */
- for (i = 0; i < 128; i++)
- datain[i] = 127;
- i2c_send (SPD_EEPROM_ADDRESS, 0, 1, datain, 128);
- printf ("\nReading DIMM...\n");
-#if 0
- for (i = 0; i < 128; i++) {
- printf ("%d=0x%x ", i, datain[i]);
- if (((i + 1) % 10) == 0)
- printf ("\n");
- }
- printf ("\n");
-#endif
-
- /*****************************/
- /* Retrieve interesting data */
- /*****************************/
- /* size of a SDRAM bank */
- /* Number of bytes per side / number of banks per side */
- if (datain[31] == 0x08)
- TotalSize = 32;
- else if (datain[31] == 0x10)
- TotalSize = 64;
- else {
- printf ("IIC READ ERROR!!!\n");
- TotalSize = 32;
- }
-
- /* single-sided DIMM or double-sided DIMM? */
- if (datain[5] != 1) {
- /* double-sided DIMM => SDRAM banks 0..3 are valid */
- printf ("double-sided DIMM\n");
- TotalSize *= 2;
- }
- /* else single-sided DIMM => SDRAM bank 0 and bank 2 are valid */
- else {
- printf ("single-sided DIMM\n");
- }
-
-
- /* return size in Mb unit => *(1024*1024) */
- return (TotalSize * 1024 * 1024);
-#endif
-}
-
-/* ------------------------------------------------------------------------- */
-
-int testdram (void)
-{
- /* TODO: XXX XXX XXX */
- printf ("test: xxx MB - ok\n");
-
- return (0);
-}
-
-/* ------------------------------------------------------------------------- */
diff --git a/board/eric/eric.h b/board/eric/eric.h
deleted file mode 100644
index b50d521..0000000
--- a/board/eric/eric.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * 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
- */
-
-/****************************************************************************
- * FLASH Memory Map as used by TQ Monitor:
- *
- * Start Address Length
- * +-----------------------+ 0x4000_0000 Start of Flash -----------------
- * | MON8xx code | 0x4000_0100 Reset Vector
- * +-----------------------+ 0x400?_????
- * | (unused) |
- * +-----------------------+ 0x4001_FF00
- * | Ethernet Addresses | 0x78
- * +-----------------------+ 0x4001_FF78
- * | (Reserved for MON8xx) | 0x44
- * +-----------------------+ 0x4001_FFBC
- * | Lock Address | 0x04
- * +-----------------------+ 0x4001_FFC0 ^
- * | Hardware Information | 0x40 | MON8xx
- * +=======================+ 0x4002_0000 (sector border) -----------------
- * | Autostart Header | | Applications
- * | ... | v
- *
- *****************************************************************************/
diff --git a/board/eric/flash.c b/board/eric/flash.c
deleted file mode 100644
index 7459873..0000000
--- a/board/eric/flash.c
+++ /dev/null
@@ -1,1131 +0,0 @@
-/*
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * 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/ppc4xx.h>
-#include <asm/processor.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-
-#ifdef CONFIG_SYS_FLASH_16BIT
-#define FLASH_WORD_SIZE unsigned short
-#define FLASH_ID_MASK 0xFFFF
-#else
-#define FLASH_WORD_SIZE unsigned long
-#define FLASH_ID_MASK 0xFFFFFFFF
-#endif
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-/* stolen from esteem192e/flash.c */
-ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info);
-
-#ifndef CONFIG_SYS_FLASH_16BIT
-static int write_word (flash_info_t *info, ulong dest, ulong data);
-#else
-static int write_short (flash_info_t *info, ulong dest, ushort data);
-#endif
-static void flash_get_offsets (ulong base, flash_info_t *info);
-
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init (void)
-{
- unsigned long size_b0, size_b1;
- int i;
- uint pbcr;
- unsigned long base_b0, base_b1;
-
- /* Init: no FLASHes known */
- for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- /* Static FLASH Bank configuration here - FIXME XXX */
-
- size_b0 = flash_get_size((volatile FLASH_WORD_SIZE *)FLASH_BASE0_PRELIM, &flash_info[0]);
-
- if (flash_info[0].flash_id == FLASH_UNKNOWN) {
- printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
- size_b0, size_b0<<20);
- }
-
- /* Only one bank */
- if (CONFIG_SYS_MAX_FLASH_BANKS == 1)
- {
- /* Setup offsets */
- flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]);
-
- /* Monitor protection ON by default */
-#if 0 /* sand: */
- (void)flash_protect(FLAG_PROTECT_SET,
- FLASH_BASE0_PRELIM-monitor_flash_len+size_b0,
- FLASH_BASE0_PRELIM-1+size_b0,
- &flash_info[0]);
-#else
- (void)flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
- &flash_info[0]);
-#endif
- size_b1 = 0 ;
- flash_info[0].size = size_b0;
- }
-
- /* 2 banks */
- else
- {
- size_b1 = flash_get_size((volatile FLASH_WORD_SIZE *)FLASH_BASE1_PRELIM, &flash_info[1]);
-
- /* Re-do sizing to get full correct info */
-
- if (size_b1)
- {
- mtdcr(EBC0_CFGADDR, PB0CR);
- pbcr = mfdcr(EBC0_CFGDATA);
- mtdcr(EBC0_CFGADDR, PB0CR);
- base_b1 = -size_b1;
- pbcr = (pbcr & 0x0001ffff) | base_b1 | (((size_b1/1024/1024)-1)<<17);
- mtdcr(EBC0_CFGDATA, pbcr);
- /* printf("PB1CR = %x\n", pbcr); */
- }
-
- if (size_b0)
- {
- mtdcr(EBC0_CFGADDR, PB1CR);
- pbcr = mfdcr(EBC0_CFGDATA);
- mtdcr(EBC0_CFGADDR, PB1CR);
- base_b0 = base_b1 - size_b0;
- pbcr = (pbcr & 0x0001ffff) | base_b0 | (((size_b0/1024/1024)-1)<<17);
- mtdcr(EBC0_CFGDATA, pbcr);
- /* printf("PB0CR = %x\n", pbcr); */
- }
-
- size_b0 = flash_get_size((volatile FLASH_WORD_SIZE *)base_b0, &flash_info[0]);
-
- flash_get_offsets (base_b0, &flash_info[0]);
-
- /* monitor protection ON by default */
-#if 0 /* sand: */
- (void)flash_protect(FLAG_PROTECT_SET,
- FLASH_BASE0_PRELIM-monitor_flash_len+size_b0,
- FLASH_BASE0_PRELIM-1+size_b0,
- &flash_info[0]);
-#else
- (void)flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
- &flash_info[0]);
-#endif
-
- if (size_b1) {
- /* Re-do sizing to get full correct info */
- size_b1 = flash_get_size((volatile FLASH_WORD_SIZE *)base_b1, &flash_info[1]);
-
- flash_get_offsets (base_b1, &flash_info[1]);
-
- /* monitor protection ON by default */
- (void)flash_protect(FLAG_PROTECT_SET,
- base_b1+size_b1-monitor_flash_len,
- base_b1+size_b1-1,
- &flash_info[1]);
- /* monitor protection OFF by default (one is enough) */
- (void)flash_protect(FLAG_PROTECT_CLEAR,
- base_b0+size_b0-monitor_flash_len,
- base_b0+size_b0-1,
- &flash_info[0]);
- } else {
- flash_info[1].flash_id = FLASH_UNKNOWN;
- flash_info[1].sector_count = -1;
- }
-
- flash_info[0].size = size_b0;
- flash_info[1].size = size_b1;
- }/* else 2 banks */
- return (size_b0 + size_b1);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-static void flash_get_offsets (ulong base, flash_info_t *info)
-{
- int i;
-
- /* set up sector start adress table */
- if ((info->flash_id & FLASH_TYPEMASK) == FLASH_28F320J3A ||
- (info->flash_id & FLASH_TYPEMASK) == FLASH_28F640J3A ||
- (info->flash_id & FLASH_TYPEMASK) == FLASH_28F128J3A) {
- for (i = 0; i < info->sector_count; i++) {
- info->start[i] = base + (i * info->size/info->sector_count);
- }
- } else if (info->flash_id & FLASH_BTYPE) {
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
-
-#ifndef CONFIG_SYS_FLASH_16BIT
- /* set sector offsets for bottom boot block type */
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00004000;
- info->start[2] = base + 0x00008000;
- info->start[3] = base + 0x0000C000;
- info->start[4] = base + 0x00010000;
- info->start[5] = base + 0x00014000;
- info->start[6] = base + 0x00018000;
- info->start[7] = base + 0x0001C000;
- for (i = 8; i < info->sector_count; i++) {
- info->start[i] = base + (i * 0x00020000) - 0x000E0000;
- }
- }
- else {
- /* set sector offsets for bottom boot block type */
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00008000;
- info->start[2] = base + 0x0000C000;
- info->start[3] = base + 0x00010000;
- for (i = 4; i < info->sector_count; i++) {
- info->start[i] = base + (i * 0x00020000) - 0x00060000;
- }
- }
-#else
- /* set sector offsets for bottom boot block type */
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00002000;
- info->start[2] = base + 0x00004000;
- info->start[3] = base + 0x00006000;
- info->start[4] = base + 0x00008000;
- info->start[5] = base + 0x0000A000;
- info->start[6] = base + 0x0000C000;
- info->start[7] = base + 0x0000E000;
- for (i = 8; i < info->sector_count; i++) {
- info->start[i] = base + (i * 0x00010000) - 0x00070000;
- }
- }
- else {
- /* set sector offsets for bottom boot block type */
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00004000;
- info->start[2] = base + 0x00006000;
- info->start[3] = base + 0x00008000;
- for (i = 4; i < info->sector_count; i++) {
- info->start[i] = base + (i * 0x00010000) - 0x00030000;
- }
- }
-#endif
- } else {
- /* set sector offsets for top boot block type */
- i = info->sector_count - 1;
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
-
-#ifndef CONFIG_SYS_FLASH_16BIT
- info->start[i--] = base + info->size - 0x00004000;
- info->start[i--] = base + info->size - 0x00008000;
- info->start[i--] = base + info->size - 0x0000C000;
- info->start[i--] = base + info->size - 0x00010000;
- info->start[i--] = base + info->size - 0x00014000;
- info->start[i--] = base + info->size - 0x00018000;
- info->start[i--] = base + info->size - 0x0001C000;
- for (; i >= 0; i--) {
- info->start[i] = base + i * 0x00020000;
- }
-
- } else {
-
- info->start[i--] = base + info->size - 0x00008000;
- info->start[i--] = base + info->size - 0x0000C000;
- info->start[i--] = base + info->size - 0x00010000;
- for (; i >= 0; i--) {
- info->start[i] = base + i * 0x00020000;
- }
- }
-#else
- info->start[i--] = base + info->size - 0x00002000;
- info->start[i--] = base + info->size - 0x00004000;
- info->start[i--] = base + info->size - 0x00006000;
- info->start[i--] = base + info->size - 0x00008000;
- info->start[i--] = base + info->size - 0x0000A000;
- info->start[i--] = base + info->size - 0x0000C000;
- info->start[i--] = base + info->size - 0x0000E000;
- for (; i >= 0; i--) {
- info->start[i] = base + i * 0x00010000;
- }
-
- } else {
-
- info->start[i--] = base + info->size - 0x00004000;
- info->start[i--] = base + info->size - 0x00006000;
- info->start[i--] = base + info->size - 0x00008000;
- for (; i >= 0; i--) {
- info->start[i] = base + i * 0x00010000;
- }
- }
-#endif
- }
-
-
-}
-
-/*-----------------------------------------------------------------------
- */
-
-void flash_print_info (flash_info_t *info)
-{
- int i;
- uchar *boottype;
- uchar botboot[]=", bottom boot sect)\n";
- uchar topboot[]=", top boot sector)\n";
-
- 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_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;
- }
-
- if (info->flash_id & 0x0001 ) {
- boottype = botboot;
- } else {
- boottype = topboot;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AM400B: printf ("AM29LV400B (4 Mbit%s",boottype);
- break;
- case FLASH_AM400T: printf ("AM29LV400T (4 Mbit%s",boottype);
- break;
- case FLASH_AM800B: printf ("AM29LV800B (8 Mbit%s",boottype);
- break;
- case FLASH_AM800T: printf ("AM29LV800T (8 Mbit%s",boottype);
- break;
- case FLASH_AM160B: printf ("AM29LV160B (16 Mbit%s",boottype);
- break;
- case FLASH_AM160T: printf ("AM29LV160T (16 Mbit%s",boottype);
- break;
- case FLASH_AM320B: printf ("AM29LV320B (32 Mbit%s",boottype);
- break;
- case FLASH_AM320T: printf ("AM29LV320T (32 Mbit%s",boottype);
- break;
- case FLASH_INTEL800B: printf ("INTEL28F800B (8 Mbit%s",boottype);
- break;
- case FLASH_INTEL800T: printf ("INTEL28F800T (8 Mbit%s",boottype);
- break;
- case FLASH_INTEL160B: printf ("INTEL28F160B (16 Mbit%s",boottype);
- break;
- case FLASH_INTEL160T: printf ("INTEL28F160T (16 Mbit%s",boottype);
- break;
- case FLASH_INTEL320B: printf ("INTEL28F320B (32 Mbit%s",boottype);
- break;
- case FLASH_INTEL320T: printf ("INTEL28F320T (32 Mbit%s",boottype);
- break;
-
-#if 0 /* enable when devices are available */
-
- case FLASH_INTEL640B: printf ("INTEL28F640B (64 Mbit%s",boottype);
- break;
- case FLASH_INTEL640T: printf ("INTEL28F640T (64 Mbit%s",boottype);
- break;
-#endif
- case FLASH_28F320J3A: printf ("INTEL28F320J3A (32 Mbit%s",boottype);
- break;
- case FLASH_28F640J3A: printf ("INTEL28F640J3A (64 Mbit%s",boottype);
- break;
- case FLASH_28F128J3A: printf ("INTEL28F128J3A (128 Mbit%s",boottype);
- 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!
- */
-ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info)
-{
- short i;
- ulong base = (ulong)addr;
- FLASH_WORD_SIZE value;
-
- /* Write auto select command: read Manufacturer ID */
-
-
-#ifndef CONFIG_SYS_FLASH_16BIT
-
- /*
- * Note: if it is an AMD flash and the word at addr[0000]
- * is 0x00890089 this routine will think it is an Intel
- * flash device and may(most likely) cause trouble.
- */
-
- addr[0x0000] = 0x00900090;
- if(addr[0x0000] != 0x00890089){
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
- addr[0x0555] = 0x00900090;
-#else
-
- /*
- * Note: if it is an AMD flash and the word at addr[0000]
- * is 0x0089 this routine will think it is an Intel
- * flash device and may(most likely) cause trouble.
- */
-
- addr[0x0000] = 0x0090;
-
- if(addr[0x0000] != 0x0089){
- addr[0x0555] = 0x00AA;
- addr[0x02AA] = 0x0055;
- addr[0x0555] = 0x0090;
-#endif
- }
- value = addr[0];
-
- switch (value) {
- case (AMD_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_AMD;
- break;
- case (FUJ_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_FUJ;
- break;
- case (STM_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_STM;
- break;
- case (SST_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_SST;
- break;
- case (INTEL_MANUFACT & FLASH_ID_MASK):
- info->flash_id = FLASH_MAN_INTEL;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
-
- }
-
- value = addr[1]; /* device ID */
-
- switch (value) {
-
- case (AMD_ID_LV400T & FLASH_ID_MASK):
- info->flash_id += FLASH_AM400T;
- info->sector_count = 11;
- info->size = 0x00100000;
- break; /* => 1 MB */
-
- case (AMD_ID_LV400B & FLASH_ID_MASK):
- info->flash_id += FLASH_AM400B;
- info->sector_count = 11;
- info->size = 0x00100000;
- break; /* => 1 MB */
-
- case (AMD_ID_LV800T & FLASH_ID_MASK):
- info->flash_id += FLASH_AM800T;
- info->sector_count = 19;
- info->size = 0x00200000;
- break; /* => 2 MB */
-
- case (AMD_ID_LV800B & FLASH_ID_MASK):
- info->flash_id += FLASH_AM800B;
- info->sector_count = 19;
- info->size = 0x00200000;
- break; /* => 2 MB */
-
- case (AMD_ID_LV160T & FLASH_ID_MASK):
- info->flash_id += FLASH_AM160T;
- info->sector_count = 35;
- info->size = 0x00400000;
- break; /* => 4 MB */
-
- case (AMD_ID_LV160B & FLASH_ID_MASK):
- info->flash_id += FLASH_AM160B;
- info->sector_count = 35;
- info->size = 0x00400000;
- break; /* => 4 MB */
-#if 0 /* enable when device IDs are available */
- case (AMD_ID_LV320T & FLASH_ID_MASK):
- info->flash_id += FLASH_AM320T;
- info->sector_count = 67;
- info->size = 0x00800000;
- break; /* => 8 MB */
-
- case (AMD_ID_LV320B & FLASH_ID_MASK):
- info->flash_id += FLASH_AM320B;
- info->sector_count = 67;
- info->size = 0x00800000;
- break; /* => 8 MB */
-#endif
-
- case (INTEL_ID_28F800B3T & FLASH_ID_MASK):
- info->flash_id += FLASH_INTEL800T;
- info->sector_count = 23;
- info->size = 0x00200000;
- break; /* => 2 MB */
-
- case (INTEL_ID_28F800B3B & FLASH_ID_MASK):
- info->flash_id += FLASH_INTEL800B;
- info->sector_count = 23;
- info->size = 0x00200000;
- break; /* => 2 MB */
-
- case (INTEL_ID_28F160B3T & FLASH_ID_MASK):
- info->flash_id += FLASH_INTEL160T;
- info->sector_count = 39;
- info->size = 0x00400000;
- break; /* => 4 MB */
-
- case (INTEL_ID_28F160B3B & FLASH_ID_MASK):
- info->flash_id += FLASH_INTEL160B;
- info->sector_count = 39;
- info->size = 0x00400000;
- break; /* => 4 MB */
-
- case (INTEL_ID_28F320B3T & FLASH_ID_MASK):
- info->flash_id += FLASH_INTEL320T;
- info->sector_count = 71;
- info->size = 0x00800000;
- break; /* => 8 MB */
-
- case (INTEL_ID_28F320B3B & FLASH_ID_MASK):
- info->flash_id += FLASH_AM320B;
- info->sector_count = 71;
- info->size = 0x00800000;
- break; /* => 8 MB */
-
-#if 0 /* enable when devices are available */
- case (INTEL_ID_28F320B3T & FLASH_ID_MASK):
- info->flash_id += FLASH_INTEL320T;
- info->sector_count = 135;
- info->size = 0x01000000;
- break; /* => 16 MB */
-
- case (INTEL_ID_28F320B3B & FLASH_ID_MASK):
- info->flash_id += FLASH_AM320B;
- info->sector_count = 135;
- info->size = 0x01000000;
- break; /* => 16 MB */
-#endif
- case (INTEL_ID_28F320J3A & FLASH_ID_MASK):
- info->flash_id += FLASH_28F320J3A;
- info->sector_count = 32;
- info->size = 0x00400000;
- break; /* => 32 MBit */
- case (INTEL_ID_28F640J3A & FLASH_ID_MASK):
- info->flash_id += FLASH_28F640J3A;
- info->sector_count = 64;
- info->size = 0x00800000;
- break; /* => 64 MBit */
- case (INTEL_ID_28F128J3A & FLASH_ID_MASK):
- info->flash_id += FLASH_28F128J3A;
- info->sector_count = 128;
- info->size = 0x01000000;
- break; /* => 128 MBit */
-
- default:
- /* FIXME*/
- info->flash_id = FLASH_UNKNOWN;
- return (0); /* => no or unknown flash */
- }
-
- flash_get_offsets(base, info);
-
- /* check for protected sectors */
- for (i = 0; i < info->sector_count; i++) {
- /* read sector protection at sector address, (A7 .. A0) = 0x02 */
- /* D0 = 1 if protected */
- addr = (volatile FLASH_WORD_SIZE *)(info->start[i]);
- info->protect[i] = addr[2] & 1;
- }
-
- /*
- * Prevent writes to uninitialized FLASH.
- */
- if (info->flash_id != FLASH_UNKNOWN) {
- addr = (volatile FLASH_WORD_SIZE *)info->start[0];
- if( (info->flash_id & 0xFF00) == FLASH_MAN_INTEL){
- *addr = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */
- } else {
- *addr = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
- }
- }
-
- return (info->size);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
-{
-
- volatile FLASH_WORD_SIZE *addr=(volatile FLASH_WORD_SIZE*)(info->start[0]);
- int flag, prot, sect, l_sect, barf;
- ulong start, now, 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;
- }
-
- if ((info->flash_id == FLASH_UNKNOWN) ||
- ((info->flash_id > FLASH_AMD_COMP) &&
- ( (info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL ) ) ){
- printf ("Can't erase unknown flash type - aborted\n");
- 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");
- }
-
- l_sect = -1;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
- if(info->flash_id < FLASH_AMD_COMP) {
-#ifndef CONFIG_SYS_FLASH_16BIT
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
- addr[0x0555] = 0x00800080;
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
-#else
- addr[0x0555] = 0x00AA;
- addr[0x02AA] = 0x0055;
- addr[0x0555] = 0x0080;
- addr[0x0555] = 0x00AA;
- addr[0x02AA] = 0x0055;
-#endif
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr = (volatile FLASH_WORD_SIZE *)(info->start[sect]);
- addr[0] = (0x00300030 & FLASH_ID_MASK);
- l_sect = sect;
- }
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- /*
- * We wait for the last triggered sector
- */
- if (l_sect < 0)
- goto DONE;
-
- start = get_timer (0);
- last = start;
- addr = (volatile FLASH_WORD_SIZE*)(info->start[l_sect]);
- while ((addr[0] & (0x00800080&FLASH_ID_MASK)) !=
- (0x00800080&FLASH_ID_MASK) )
- {
- if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- return 1;
- }
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- serial_putc ('.');
- last = now;
- }
- }
-
-DONE:
- /* reset to read mode */
- addr = (volatile FLASH_WORD_SIZE *)info->start[0];
- addr[0] = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */
- } else {
-
-
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- barf = 0;
-#ifndef CONFIG_SYS_FLASH_16BIT
- addr = (vu_long*)(info->start[sect]);
- addr[0] = 0x00200020;
- addr[0] = 0x00D000D0;
- while(!(addr[0] & 0x00800080)); /* wait for error or finish */
- if( addr[0] & 0x003A003A) { /* check for error */
- barf = addr[0] & 0x003A0000;
- if( barf ) {
- barf >>=16;
- } else {
- barf = addr[0] & 0x0000003A;
- }
- }
-#else
- addr = (vu_short*)(info->start[sect]);
- addr[0] = 0x0020;
- addr[0] = 0x00D0;
- while(!(addr[0] & 0x0080)); /* wait for error or finish */
- if( addr[0] & 0x003A) /* check for error */
- barf = addr[0] & 0x003A;
-#endif
- if(barf) {
- printf("\nFlash error in sector at %lx\n",(unsigned long)addr);
- if(barf & 0x0002) printf("Block locked, not erased.\n");
- if((barf & 0x0030) == 0x0030)
- printf("Command Sequence error.\n");
- if((barf & 0x0030) == 0x0020)
- printf("Block Erase error.\n");
- if(barf & 0x0008) printf("Vpp Low error.\n");
- rcode = 1;
- } else printf(".");
- l_sect = sect;
- }
- addr = (volatile FLASH_WORD_SIZE *)info->start[0];
- addr[0] = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
-
- }
-
- }
- printf (" done\n");
- return rcode;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-/*flash_info_t *addr2info (ulong addr)
-{
- flash_info_t *info;
- int i;
-
- for (i=0, info=&flash_info[0]; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
- if ((addr >= info->start[0]) &&
- (addr < (info->start[0] + info->size)) ) {
- return (info);
- }
- }
-
- return (NULL);
-}
-*/
-/*-----------------------------------------------------------------------
- * Copy memory to flash.
- * Make sure all target addresses are within Flash bounds,
- * and no protected sectors are hit.
- * Returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 4 - target range includes protected sectors
- * 8 - target address not in Flash memory
- */
-
-/*int flash_write (uchar *src, ulong addr, ulong cnt)
-{
- int i;
- ulong end = addr + cnt - 1;
- flash_info_t *info_first = addr2info (addr);
- flash_info_t *info_last = addr2info (end );
- flash_info_t *info;
-
- if (cnt == 0) {
- return (0);
- }
-
- if (!info_first || !info_last) {
- return (8);
- }
-
- for (info = info_first; info <= info_last; ++info) {
- ulong b_end = info->start[0] + info->size;*/ /* bank end addr */
-/* short s_end = info->sector_count - 1;
- for (i=0; i<info->sector_count; ++i) {
- ulong e_addr = (i == s_end) ? b_end : info->start[i + 1];
-
- if ((end >= info->start[i]) && (addr < e_addr) &&
- (info->protect[i] != 0) ) {
- return (4);
- }
- }
- }
-
-*/ /* finally write data to flash */
-/* for (info = info_first; info <= info_last && cnt>0; ++info) {
- ulong len;
-
- len = info->start[0] + info->size - addr;
- if (len > cnt)
- len = cnt;
- if ((i = write_buff(info, src, addr, len)) != 0) {
- return (i);
- }
- cnt -= len;
- addr += len;
- src += len;
- }
- return (0);
-}
-*/
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
-#ifndef CONFIG_SYS_FLASH_16BIT
- ulong cp, wp, data;
- int l;
-#else
- ulong cp, wp;
- ushort data;
-#endif
- int i, rc;
-
-#ifndef CONFIG_SYS_FLASH_16BIT
-
-
- wp = (addr & ~3); /* get lower word aligned address */
-
- /*
- * 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<4 && cnt>0; ++i) {
- data = (data << 8) | *src++;
- --cnt;
- ++cp;
- }
- for (; cnt==0 && i<4; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
- }
- wp += 4;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= 4) {
- data = 0;
- for (i=0; i<4; ++i) {
- data = (data << 8) | *src++;
- }
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
- }
- wp += 4;
- cnt -= 4;
- }
-
- if (cnt == 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
- data = (data << 8) | *src++;
- --cnt;
- }
- for (; i<4; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- return (write_word(info, wp, data));
-
-#else
- wp = (addr & ~1); /* get lower word aligned address */
-
- /*
- * handle unaligned start byte
- */
- if (addr - wp) {
- data = 0;
- data = (data << 8) | *src++;
- --cnt;
- if ((rc = write_short(info, wp, data)) != 0) {
- return (rc);
- }
- wp += 2;
- }
-
- /*
- * handle word aligned part
- */
-/* l = 0; used for debuging */
- while (cnt >= 2) {
- data = 0;
- for (i=0; i<2; ++i) {
- data = (data << 8) | *src++;
- }
-
-/* if(!l){
- printf("%x",data);
- l = 1;
- } used for debuging */
-
- if ((rc = write_short(info, wp, data)) != 0) {
- return (rc);
- }
- wp += 2;
- cnt -= 2;
- }
-
- if (cnt == 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
- data = (data << 8) | *src++;
- --cnt;
- }
- for (; i<2; ++i, ++cp) {
- data = (data << 8) | (*(uchar *)cp);
- }
-
- return (write_short(info, wp, data));
-
-
-#endif
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-#ifndef CONFIG_SYS_FLASH_16BIT
-static int write_word (flash_info_t * info, ulong dest, ulong data)
-{
- vu_long *addr = (vu_long *) (info->start[0]);
- ulong start, barf;
- int flag;
-
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((vu_long *) dest) & data) != data) {
- return (2);
- }
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts ();
-
- if (info->flash_id > FLASH_AMD_COMP) {
- /* AMD stuff */
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
- addr[0x0555] = 0x00A000A0;
- } else {
- /* intel stuff */
- *addr = 0x00400040;
- }
- *((vu_long *) dest) = data;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts ();
-
- /* data polling for D7 */
- start = get_timer (0);
-
- if (info->flash_id > FLASH_AMD_COMP) {
-
- while ((*((vu_long *) dest) & 0x00800080) !=
- (data & 0x00800080)) {
- if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
- }
-
- } else {
-
- while (!(addr[0] & 0x00800080)) { /* wait for error or finish */
- if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
-
- if (addr[0] & 0x003A003A) { /* check for error */
- barf = addr[0] & 0x003A0000;
- if (barf) {
- barf >>= 16;
- } else {
- barf = addr[0] & 0x0000003A;
- }
- printf ("\nFlash write error at address %lx\n",
- (unsigned long) dest);
- if (barf & 0x0002)
- printf ("Block locked, not erased.\n");
- if (barf & 0x0010)
- printf ("Programming error.\n");
- if (barf & 0x0008)
- printf ("Vpp Low error.\n");
- return (2);
- }
-
-
- }
-
- return (0);
-
- }
-
-#else
-
-static int write_short (flash_info_t * info, ulong dest, ushort data)
-{
- vu_short *addr = (vu_short *) (info->start[0]);
- ulong start, barf;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((vu_short *) dest) & data) != data) {
- return (2);
- }
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts ();
-
- if (info->flash_id < FLASH_AMD_COMP) {
- /* AMD stuff */
- addr[0x0555] = 0x00AA;
- addr[0x02AA] = 0x0055;
- addr[0x0555] = 0x00A0;
- } else {
- /* intel stuff */
- *addr = 0x00D0;
- *addr = 0x0040;
- }
- *((vu_short *) dest) = data;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts ();
-
- /* data polling for D7 */
- start = get_timer (0);
-
- if (info->flash_id < FLASH_AMD_COMP) {
- /* AMD stuff */
- while ((*((vu_short *) dest) & 0x0080) != (data & 0x0080)) {
- if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
- }
-
- } else {
- /* intel stuff */
- while (!(addr[0] & 0x0080)) { /* wait for error or finish */
- if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT)
- return (1);
- }
-
- if (addr[0] & 0x003A) { /* check for error */
- barf = addr[0] & 0x003A;
- printf ("\nFlash write error at address %lx\n",
- (unsigned long) dest);
- if (barf & 0x0002)
- printf ("Block locked, not erased.\n");
- if (barf & 0x0010)
- printf ("Programming error.\n");
- if (barf & 0x0008)
- printf ("Vpp Low error.\n");
- return (2);
- }
- *addr = 0x00B0;
- *addr = 0x0070;
- while (!(addr[0] & 0x0080)) { /* wait for error or finish */
- if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT)
- return (1);
- }
- *addr = 0x00FF;
- }
- return (0);
-}
-#endif
-/*-----------------------------------------------------------------------*/
diff --git a/board/eric/init.S b/board/eric/init.S
deleted file mode 100644
index 1902241..0000000
--- a/board/eric/init.S
+++ /dev/null
@@ -1,359 +0,0 @@
-/*------------------------------------------------------------------------------+ */
-/* */
-/* This source code is dual-licensed. You may use it under the terms */
-/* of the GNU General Public License version 2, or under the license */
-/* below. */
-/* */
-/* This source code has been made available to you by IBM on an AS-IS */
-/* basis. Anyone receiving this source is licensed under IBM */
-/* copyrights to use it in any way he or she deems fit, including */
-/* copying it, modifying it, compiling it, and redistributing it either */
-/* with or without modifications. No license under IBM patents or */
-/* patent applications is to be implied by the copyright license. */
-/* */
-/* Any user of this software should understand that IBM cannot provide */
-/* technical support for this software and will not be responsible for */
-/* any consequences resulting from the use of this software. */
-/* */
-/* Any person who transfers this source code or any derivative work */
-/* must include the IBM copyright notice, this paragraph, and the */
-/* preceding two paragraphs in the transferred software. */
-/* */
-/* COPYRIGHT I B M CORPORATION 1995 */
-/* LICENSED MATERIAL - PROGRAM PROPERTY OF I B M */
-/*------------------------------------------------------------------------------- */
-
-/*----------------------------------------------------------------------------- */
-/* Function: ext_bus_cntlr_init */
-/* Description: Initializes the External Bus Controller for the external */
-/* peripherals. IMPORTANT: For pass1 this code must run from */
-/* cache since you can not reliably change a peripheral banks */
-/* timing register (pbxap) while running code from that bank. */
-/* For ex., since we are running from ROM on bank 0, we can NOT */
-/* execute the code that modifies bank 0 timings from ROM, so */
-/* we run it from cache. */
-/* */
-/*----------------------------------------------------------------------------- */
-#include <config.h>
-#include <asm/ppc4xx.h>
-
-#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */
-
-#include <ppc_asm.tmpl>
-#include <ppc_defs.h>
-
-#include <asm/cache.h>
-#include <asm/mmu.h>
-
-
- .globl ext_bus_cntlr_init
-ext_bus_cntlr_init:
- mflr r4 /* save link register */
- bl ..getAddr
-..getAddr:
- mflr r3 /* get address of ..getAddr */
- mtlr r4 /* restore link register */
- addi r4,0,14 /* set ctr to 10; used to prefetch */
- mtctr r4 /* 10 cache lines to fit this function */
- /* in cache (gives us 8x10=80 instrctns) */
-..ebcloop:
- icbt r0,r3 /* prefetch cache line for addr in r3 */
- addi r3,r3,32 /* move to next cache line */
- bdnz ..ebcloop /* continue for 10 cache lines */
-
- /*------------------------------------------------------------------- */
- /* Delay to ensure all accesses to ROM are complete before changing */
- /* bank 0 timings. 200usec should be enough. */
- /* 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles */
- /*------------------------------------------------------------------- */
- addis r3,0,0x0
- ori r3,r3,0xA000 /* ensure 200usec have passed since reset */
- mtctr r3
-..spinlp:
- bdnz ..spinlp /* spin loop */
-
- /*----------------------------------------------------------------------- */
- /* Memory Bank 0 (Flash) initialization (from openbios) */
- /*----------------------------------------------------------------------- */
-
- addi r4,0,PB1AP
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS0_AP@h
- ori r4,r4,CS0_AP@l
- mtdcr EBC0_CFGDATA,r4
-
- addi r4,0,PB0CR
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS0_CR@h
- ori r4,r4,CS0_CR@l
- mtdcr EBC0_CFGDATA,r4
-
- /*----------------------------------------------------------------------- */
- /* Memory Bank 1 (NVRAM/RTC) initialization */
- /*----------------------------------------------------------------------- */
-
- addi r4,0,PB1AP
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS1_AP@h
- ori r4,r4,CS1_AP@l
- mtdcr EBC0_CFGDATA,r4
-
- addi r4,0,PB1CR
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS1_CR@h
- ori r4,r4,CS1_CR@l
- mtdcr EBC0_CFGDATA,r4
-
- /*----------------------------------------------------------------------- */
- /* Memory Bank 2 (A/D converter) initialization */
- /*----------------------------------------------------------------------- */
-
- addi r4,0,PB2AP
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS2_AP@h
- ori r4,r4,CS2_AP@l
- mtdcr EBC0_CFGDATA,r4
-
- addi r4,0,PB2CR
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS2_CR@h
- ori r4,r4,CS2_CR@l
- mtdcr EBC0_CFGDATA,r4
-
- /*----------------------------------------------------------------------- */
- /* Memory Bank 3 (Ethernet PHY Reset) initialization */
- /*----------------------------------------------------------------------- */
-
- addi r4,0,PB3AP
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS3_AP@h
- ori r4,r4,CS3_AP@l
- mtdcr EBC0_CFGDATA,r4
-
- addi r4,0,PB3CR
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS3_CR@h
- ori r4,r4,CS3_CR@l
- mtdcr EBC0_CFGDATA,r4
-
- /*----------------------------------------------------------------------- */
- /* Memory Bank 4 (PC-MIP PRSNT1#) initialization */
- /*----------------------------------------------------------------------- */
-
- addi r4,0,PB4AP
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS4_AP@h
- ori r4,r4,CS4_AP@l
- mtdcr EBC0_CFGDATA,r4
-
- addi r4,0,PB4CR
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS4_CR@h
- ori r4,r4,CS4_CR@l
- mtdcr EBC0_CFGDATA,r4
-
- /*----------------------------------------------------------------------- */
- /* Memory Bank 5 (PC-MIP PRSNT2#) initialization */
- /*----------------------------------------------------------------------- */
-
- addi r4,0,PB5AP
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS5_AP@h
- ori r4,r4,CS5_AP@l
- mtdcr EBC0_CFGDATA,r4
-
- addi r4,0,PB5CR
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS5_CR@h
- ori r4,r4,CS5_CR@l
- mtdcr EBC0_CFGDATA,r4
-
- /*----------------------------------------------------------------------- */
- /* Memory Bank 6 (CPU LED0) initialization */
- /*----------------------------------------------------------------------- */
-
- addi r4,0,PB6AP
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS6_AP@h
- ori r4,r4,CS6_AP@l
- mtdcr EBC0_CFGDATA,r4
-
- addi r4,0,PB6CR
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS6_CR@h
- ori r4,r4,CS5_CR@l
- mtdcr EBC0_CFGDATA,r4
-
- /*----------------------------------------------------------------------- */
- /* Memory Bank 7 (CPU LED1) initialization */
- /*----------------------------------------------------------------------- */
-
- addi r4,0,PB7AP
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS7_AP@h
- ori r4,r4,CS7_AP@l
- mtdcr EBC0_CFGDATA,r4
-
- addi r4,0,PB7CR
- mtdcr EBC0_CFGADDR,r4
- addis r4,0,CS7_CR@h
- ori r4,r4,CS7_CR@l
- mtdcr EBC0_CFGDATA,r4
-
-/* addis r4,r0,FPGA_BRDC@h */
-/* ori r4,r4,FPGA_BRDC@l */
-/* lbz r3,0(r4) /###*get FPGA board control reg */
-/* eieio */
-/* ori r3,r3,0x01 /###*set UART1 control to select CTS/RTS */
-/* stb r3,0(r4) */
-
- nop /* pass2 DCR errata #8 */
- blr
-
-/*----------------------------------------------------------------------------- */
-/* Function: sdram_init */
-/* Description: Configures SDRAM memory banks on ERIC. */
-/* We do manually init our SDRAM. */
-/* If we have two SDRAM banks, simply undef SINGLE_BANK (ROLF :-) */
-/* It is assumed that a 32MB 12x8(2) SDRAM is used. */
-/*----------------------------------------------------------------------------- */
- .globl sdram_init
-
-sdram_init:
-
- mflr r31
-
-#ifdef CONFIG_SYS_SDRAM_MANUALLY
- /*------------------------------------------------------------------- */
- /* Set MB0CF for bank 0. (0-32MB) Address Mode 4 since 12x8(2) */
- /*------------------------------------------------------------------- */
-
- addi r4,0,SDRAM0_B0CR
- mtdcr SDRAM0_CFGADDR,r4
- addis r4,0,MB0CF@h
- ori r4,r4,MB0CF@l
- mtdcr SDRAM0_CFGDATA,r4
-
- /*------------------------------------------------------------------- */
- /* Set MB1CF for bank 1. (32MB-64MB) Address Mode 4 since 12x8(2) */
- /*------------------------------------------------------------------- */
-
- addi r4,0,SDRAM0_B1CR
- mtdcr SDRAM0_CFGADDR,r4
- addis r4,0,MB1CF@h
- ori r4,r4,MB1CF@l
- mtdcr SDRAM0_CFGDATA,r4
-
- /*------------------------------------------------------------------- */
- /* Set MB2CF for bank 2. off */
- /*------------------------------------------------------------------- */
-
- addi r4,0,SDRAM0_B2CR
- mtdcr SDRAM0_CFGADDR,r4
- addis r4,0,MB2CF@h
- ori r4,r4,MB2CF@l
- mtdcr SDRAM0_CFGDATA,r4
-
- /*------------------------------------------------------------------- */
- /* Set MB3CF for bank 3. off */
- /*------------------------------------------------------------------- */
-
- addi r4,0,SDRAM0_B3CR
- mtdcr SDRAM0_CFGADDR,r4
- addis r4,0,MB3CF@h
- ori r4,r4,MB3CF@l
- mtdcr SDRAM0_CFGDATA,r4
-
- /*------------------------------------------------------------------- */
- /* Set the SDRAM Timing reg, SDTR1 and the refresh timer reg, RTR. */
- /* To set the appropriate timings, we need to know the SDRAM speed. */
- /* We can use the PLB speed since the SDRAM speed is the same as */
- /* the PLB speed. The PLB speed is the FBK divider times the */
- /* 405GP reference clock, which on the Walnut board is 33Mhz. */
- /* Thus, if FBK div is 2, SDRAM is 66Mhz; if FBK div is 3, SDRAM is */
- /* 100Mhz; if FBK is 3, SDRAM is 133Mhz. */
- /* NOTE: The Walnut board supports SDRAM speeds of 66Mhz, 100Mhz, and */
- /* maybe 133Mhz. */
- /*------------------------------------------------------------------- */
-
- mfdcr r5,CPC0_PSR /* determine FBK divider */
- /* via STRAP reg to calc PLB speed. */
- /* SDRAM speed is the same as the PLB */
- /* speed. */
- rlwinm r4,r5,4,0x3 /* get FBK divide bits */
-
-..chk_66:
- cmpi %cr0,0,r4,0x1
- bne ..chk_100
- addis r6,0,SDTR_66@h /* SDTR1 value for 66Mhz */
- ori r6,r6,SDTR_66@l
- addis r7,0,RTR_66 /* RTR value for 66Mhz */
- b ..sdram_ok
-..chk_100:
- cmpi %cr0,0,r4,0x2
- bne ..chk_133
- addis r6,0,SDTR_100@h /* SDTR1 value for 100Mhz */
- ori r6,r6,SDTR_100@l
- addis r7,0,RTR_100 /* RTR value for 100Mhz */
- b ..sdram_ok
-..chk_133:
- addis r6,0,0x0107 /* SDTR1 value for 133Mhz */
- ori r6,r6,0x4015
- addis r7,0,0x07F0 /* RTR value for 133Mhz */
-
-..sdram_ok:
- /*------------------------------------------------------------------- */
- /* Set SDTR1 */
- /*------------------------------------------------------------------- */
- addi r4,0,SDRAM0_TR
- mtdcr SDRAM0_CFGADDR,r4
- mtdcr SDRAM0_CFGDATA,r6
-
- /*------------------------------------------------------------------- */
- /* Set RTR */
- /*------------------------------------------------------------------- */
- addi r4,0,SDRAM0_RTR
- mtdcr SDRAM0_CFGADDR,r4
- mtdcr SDRAM0_CFGDATA,r7
-
- /*------------------------------------------------------------------- */
- /* Delay to ensure 200usec have elapsed since reset. Assume worst */
- /* case that the core is running 200Mhz: */
- /* 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles */
- /*------------------------------------------------------------------- */
- addis r3,0,0x0000
- ori r3,r3,0xA000 /* ensure 200usec have passed since reset */
- mtctr r3
-..spinlp2:
- bdnz ..spinlp2 /* spin loop */
-
- /*------------------------------------------------------------------- */
- /* Set memory controller options reg, MCOPT1. */
- /* Set DC_EN to '1' and BRD_PRF to '01' for 16 byte PLB Burst */
- /* read/prefetch. */
- /*------------------------------------------------------------------- */
- addi r4,0,SDRAM0_CFG
- mtdcr SDRAM0_CFGADDR,r4
- addis r4,0,0x8080 /* set DC_EN=1 */
- ori r4,r4,0x0000
- mtdcr SDRAM0_CFGDATA,r4
-
- /*------------------------------------------------------------------- */
- /* Delay to ensure 10msec have elapsed since reset. This is */
- /* required for the MPC952 to stabalize. Assume worst */
- /* case that the core is running 200Mhz: */
- /* 200,000,000 (cycles/sec) X .010 (sec) = 0x1E8480 cycles */
- /* This delay should occur before accessing SDRAM. */
- /*------------------------------------------------------------------- */
- addis r3,0,0x001E
- ori r3,r3,0x8480 /* ensure 10msec have passed since reset */
- mtctr r3
-..spinlp3:
- bdnz ..spinlp3 /* spin loop */
-
-#else
-/*fixme: do SDRAM Autoconfig from EEPROM here */
-
-#endif
- mtlr r31 /* restore lr */
- blr
generated by cgit v1.1 at 2024-12-24 19:50:16 +0000