diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/eric/Makefile | 51 | ||||
| -rw-r--r-- | board/eric/eric.c | 203 | ||||
| -rw-r--r-- | board/eric/eric.h | 44 | ||||
| -rw-r--r-- | board/eric/flash.c | 1131 | ||||
| -rw-r--r-- | board/eric/init.S | 359 |
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 |