Hi All,
Attached is a patch that adds support to u-boot for the OpenGear CM4116 and CM4148 serial port console manager boards. They are built around the KS8695P CPU, with 16 or 48 serial ports, 32MB RAM, and 16MB NOR flash.
This patch was originally generated against u-boot 1.1.1.
Regards Greg
diff -Naur --exclude=CVS u-boot-1.1.1/board/cm41xx/cm41xx.c u-boot/board/cm41xx/cm41xx.c --- u-boot-1.1.1/board/cm41xx/cm41xx.c 1970-01-01 10:00:00.000000000 +1000 +++ u-boot/board/cm41xx/cm41xx.c 2005-05-04 22:47:17.230315856 +1000 @@ -0,0 +1,101 @@ +/* + * (C) Copyright 2005 + * Greg Ungerer, OpenGear Inc, greg.ungerer@opengear.com + * + * (C) Copyright 2002 + * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger mgroeger@sysgo.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/arch/platform.h> + +/* ------------------------------------------------------------------------- */ + +#define ks8695_read(a) *((volatile unsigned int *) (KS8695_IO_BASE+(a))) +#define ks8695_write(a,b) *((volatile unsigned int *) (KS8695_IO_BASE+(a))) = (b) + +/* ------------------------------------------------------------------------- */ + + +/* + * Miscelaneous platform dependent initialisations + */ +int env_flash_cmdline (void) +{ + unsigned char *sp = (unsigned char *) 0x0201c020; + unsigned char *ep; + int len; + + /* Check if "erase" push button is depressed */ + if ((ks8695_read(KS8695_GPIO_DATA) & 0x8) == 0) { + printf("### Entering network recovery mode...\n"); + setenv("bootargs", "console=ttyAM0,115200 mem=32M initrd=0x400000,8M root=/dev/ram0"); + setenv("bootcmd", "bootp 0x400000; gofsk 0x400000"); + setenv("bootdelay", "2"); + return 0; + } + + /* Check for flash based kernel boot args to use as default */ + for (ep = sp, len = 0; ((len < 1024) && (*ep != 0)); ep++, len++) + ; + + if ((len > 0) && (len <1024)) + setenv("bootargs", sp); + + return 0; +} + +int board_late_init (void) +{ + return 0; +} + + +int board_init (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + /* arch number of CM41xx */ + gd->bd->bi_arch_number = 672; + + /* adress of boot parameters */ + gd->bd->bi_boot_params = 0x00000100; + + /* power down all but port 0 on the switch */ + ks8695_write(KS8695_SWITCH_LPPM12, 0x00000005); + ks8695_write(KS8695_SWITCH_LPPM34, 0x00050005); + + return 0; +} + +int dram_init (void) +{ + DECLARE_GLOBAL_DATA_PTR; + + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; + + return (0); +} diff -Naur --exclude=CVS u-boot-1.1.1/board/cm41xx/config.mk u-boot/board/cm41xx/config.mk --- u-boot-1.1.1/board/cm41xx/config.mk 1970-01-01 10:00:00.000000000 +1000 +++ u-boot/board/cm41xx/config.mk 2005-01-19 23:54:55.000000000 +1000 @@ -0,0 +1 @@ +TEXT_BASE = 0x00f00000 diff -Naur --exclude=CVS u-boot-1.1.1/board/cm41xx/flash.c u-boot/board/cm41xx/flash.c --- u-boot-1.1.1/board/cm41xx/flash.c 1970-01-01 10:00:00.000000000 +1000 +++ u-boot/board/cm41xx/flash.c 2005-01-19 23:54:55.000000000 +1000 @@ -0,0 +1,409 @@ +/* + * (C) Copyright 2005 + * Greg Ungerer, OpenGear Inc, greg.ungerer@opengear.com + * + * (C) Copyright 2001 + * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net + * + * (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 <linux/byteorder/swab.h> + + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ + +#define mb() __asm__ __volatile__ ("" : : : "memory") + +/*----------------------------------------------------------------------- + * Functions + */ +static ulong flash_get_size (unsigned char * addr, flash_info_t * info); +static int write_data (flash_info_t * info, ulong dest, unsigned char data); +static void flash_get_offsets (ulong base, flash_info_t * info); +void inline spin_wheel (void); + +/*----------------------------------------------------------------------- + */ + +unsigned long flash_init (void) +{ + int i; + ulong size = 0; + + for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) { + switch (i) { + case 0: + flash_get_size ((unsigned char *) PHYS_FLASH_1, &flash_info[i]); + flash_get_offsets (PHYS_FLASH_1, &flash_info[i]); + break; + case 1: + /* ignore for now */ + flash_info[i].flash_id = FLASH_UNKNOWN; + break; + default: + panic ("configured too many flash banks!\n"); + break; + } + size += flash_info[i].size; + } + + /* Protect monitor and environment sectors + */ + flash_protect (FLAG_PROTECT_SET, + CFG_FLASH_BASE, + CFG_FLASH_BASE + _bss_start - _armboot_start, + &flash_info[0]); + + return size; +} + +/*----------------------------------------------------------------------- + */ +static void flash_get_offsets (ulong base, flash_info_t * info) +{ + int i; + + if (info->flash_id == FLASH_UNKNOWN) + return; + + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { + for (i = 0; i < info->sector_count; i++) { + info->start[i] = base + (i * PHYS_FLASH_SECT_SIZE); + info->protect[i] = 0; + } + } +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t * info) +{ + int i; + + if (info->flash_id == FLASH_UNKNOWN) { + printf ("missing or unknown FLASH type\n"); + return; + } + + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_INTEL: + printf ("INTEL "); + break; + default: + printf ("Unknown Vendor "); + break; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_28F128J3A: + printf ("28F128J3A\n"); + break; + default: + printf ("Unknown Chip Type\n"); + break; + } + + printf (" Size: %ld MB in %d Sectors\n", + info->size >> 20, info->sector_count); + + printf (" Sector Start Addresses:"); + for (i = 0; i < info->sector_count; ++i) { + if ((i % 5) == 0) + printf ("\n "); + printf (" %08lX%s", + info->start[i], info->protect[i] ? " (RO)" : " "); + } + printf ("\n"); + return; +} + +/* + * The following code cannot be run from FLASH! + */ +static ulong flash_get_size (unsigned char * addr, flash_info_t * info) +{ + volatile unsigned char value; + + /* Write auto select command: read Manufacturer ID */ + addr[0x5555] = 0xAA; + addr[0x2AAA] = 0x55; + addr[0x5555] = 0x90; + + mb (); + value = addr[0]; + + switch (value) { + + case (unsigned char)INTEL_MANUFACT: + info->flash_id = FLASH_MAN_INTEL; + break; + + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + addr[0] = 0xFF; /* restore read mode */ + return (0); /* no or unknown flash */ + } + + mb (); + value = addr[2]; /* device ID */ + + switch (value) { + + case (unsigned char)INTEL_ID_28F640J3A: + info->flash_id += FLASH_28F640J3A; + info->sector_count = 64; + info->size = 0x00800000; + break; /* => 8 MB */ + + case (unsigned char)INTEL_ID_28F128J3A: + info->flash_id += FLASH_28F128J3A; + info->sector_count = 128; + info->size = 0x01000000; + break; /* => 16 MB */ + + default: + info->flash_id = FLASH_UNKNOWN; + break; + } + + if (info->sector_count > CFG_MAX_FLASH_SECT) { + printf ("** ERROR: sector count %d > max (%d) **\n", + info->sector_count, CFG_MAX_FLASH_SECT); + info->sector_count = CFG_MAX_FLASH_SECT; + } + + addr[0] = 0xFF; /* restore read mode */ + + return (info->size); +} + + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t * info, int s_first, int s_last) +{ + int flag, prot, sect; + ulong type; + int rcode = 0; + + if ((s_first < 0) || (s_first > s_last)) { + if (info->flash_id == FLASH_UNKNOWN) { + printf ("- missing\n"); + } else { + printf ("- no sectors to erase\n"); + } + return 1; + } + + type = (info->flash_id & FLASH_VENDMASK); + if ((type != FLASH_MAN_INTEL)) { + printf ("Can't erase unknown flash type %08lx - aborted\n", + info->flash_id); + return 1; + } + + prot = 0; + for (sect = s_first; sect <= s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + + if (prot) + printf ("- Warning: %d protected sectors will not be erased!\n", prot); + else + printf ("\n"); + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect <= s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + volatile unsigned char *addr; + unsigned char status; + + printf ("Erasing sector %2d ... ", sect); + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked (); + + addr = (volatile unsigned char *) (info->start[sect]); + *addr = 0x50; /* clear status register */ + *addr = 0x20; /* erase setup */ + *addr = 0xD0; /* erase confirm */ + + while (((status = *addr) & 0x80) != 0x80) { + if (get_timer_masked () > + CFG_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + *addr = 0xB0; /* suspend erase */ + *addr = 0xFF; /* reset to read mode */ + rcode = 1; + break; + } + } + + *addr = 0x50; /* clear status register cmd */ + *addr = 0xFF; /* resest to read mode */ + + printf (" done\n"); + } + } + return rcode; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + * 4 - Flash not identified + */ + +int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) +{ + ulong cp, wp; + unsigned char data; + int count, i, l, rc, port_width; + + if (info->flash_id == FLASH_UNKNOWN) + return 4; + + wp = addr; + port_width = 1; + + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) { + data = 0; + for (i = 0, cp = wp; i < l; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + for (; i < port_width && cnt > 0; ++i) { + data = (data << 8) | *src++; + --cnt; + ++cp; + } + for (; cnt == 0 && i < port_width; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + + if ((rc = write_data (info, wp, data)) != 0) { + return (rc); + } + wp += port_width; + } + + /* + * handle word aligned part + */ + count = 0; + while (cnt >= port_width) { + data = 0; + for (i = 0; i < port_width; ++i) { + data = (data << 8) | *src++; + } + if ((rc = write_data (info, wp, data)) != 0) { + return (rc); + } + wp += port_width; + cnt -= port_width; + if (count++ > 0x800) { + spin_wheel (); + count = 0; + } + } + + if (cnt == 0) { + return (0); + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; + } + for (; i < port_width; ++i, ++cp) { + data = (data << 8) | (*(uchar *) cp); + } + + return (write_data (info, wp, data)); +} + +/*----------------------------------------------------------------------- + * Write a word or halfword to Flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +static int write_data (flash_info_t * info, ulong dest, unsigned char data) +{ + volatile unsigned char *addr = (volatile unsigned char *) dest; + ulong status; + int flag; + + /* Check if Flash is (sufficiently) erased */ + if ((*addr & data) != data) { + printf ("not erased at %08lx (%lx)\n", (ulong) addr, + (ulong) * addr); + return (2); + } + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + *addr = 0x40; /* write setup */ + *addr = data; + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked (); + + /* wait while polling the status register */ + while (((status = *addr) & 0x80) != 0x80) { + if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) { + *addr = 0xFF; /* restore read mode */ + return (1); + } + } + + *addr = 0xFF; /* restore read mode */ + + return (0); +} + +void inline spin_wheel (void) +{ + static int p = 0; + static char w[] = "\/-"; + + printf ("\010%c", w[p]); + (++p == 3) ? (p = 0) : 0; +} diff -Naur --exclude=CVS u-boot-1.1.1/board/cm41xx/Makefile u-boot/board/cm41xx/Makefile --- u-boot-1.1.1/board/cm41xx/Makefile 1970-01-01 10:00:00.000000000 +1000 +++ u-boot/board/cm41xx/Makefile 2005-01-20 00:05:10.000000000 +1000 @@ -0,0 +1,46 @@ +# +# (C) Copyright 2000, 2002 +# 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 $(TOPDIR)/config.mk + +LIB = lib$(BOARD).a + +OBJS := cm41xx.o flash.o + +$(LIB): $(OBJS) $(SOBJS) + $(AR) crv $@ $^ + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) + $(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@ + +-include .depend + +######################################################################### diff -Naur --exclude=CVS u-boot-1.1.1/board/cm41xx/u-boot.lds u-boot/board/cm41xx/u-boot.lds --- u-boot-1.1.1/board/cm41xx/u-boot.lds 1970-01-01 10:00:00.000000000 +1000 +++ u-boot/board/cm41xx/u-boot.lds 2005-01-19 23:54:55.000000000 +1000 @@ -0,0 +1,55 @@ +/* + * (C) Copyright 2000 + * 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 + */ + +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + . = 0x00000000; + + . = ALIGN(4); + .text : + { + cpu/ks8695/start.o (.text) + *(.text) + } + + . = ALIGN(4); + .rodata : { *(.rodata) } + + . = ALIGN(4); + .data : { *(.data) } + + . = ALIGN(4); + .got : { *(.got) } + + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = ALIGN(4); + __bss_start = .; + .bss : { *(.bss) } + _end = .; +} diff -Naur --exclude=CVS u-boot-1.1.1/include/configs/cm41xx.h u-boot/include/configs/cm41xx.h --- u-boot-1.1.1/include/configs/cm41xx.h 1970-01-01 10:00:00.000000000 +1000 +++ u-boot/include/configs/cm41xx.h 2005-03-17 22:39:02.000000000 +1000 @@ -0,0 +1,127 @@ +/* + * (C) Copyright 2005 + * Greg Ungerer greg.ungerer@opengear.com. + * 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 + */ +#ifndef __CONFIG_H +#define __CONFIG_H + +/* + * If we are developing, we might want to start armboot from ram + * so we MUST NOT initialize critical regs like mem-timing ... + */ +#define CONFIG_INIT_CRITICAL /* undef for developing */ + +/* + * High Level Configuration Options + * (easy to change) + */ +#define CONFIG_KS8695 1 /* it is a KS8695 CPU */ +#define CONFIG_CM41xx 1 /* it is an OpenGear CM41xx boad */ + +#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */ + +#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */ +#define CONFIG_SETUP_MEMORY_TAGS 1 +#define CONFIG_INITRD_TAG 1 + +/* + * Size of malloc() pool + */ +#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024) +#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */ + +/* + * Hardware drivers + */ + +/* + * select serial console configuration + */ +#define CFG_ENV_IS_NOWHERE +#define CONFIG_SERIAL1 +#define CONFIG_CONS_INDEX 1 +#define CONFIG_BAUDRATE 115200 +#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } + +/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ +#include <cmd_confdefs.h> +#undef CONFIG_COMMANDS +#define CONFIG_COMMANDS (CONFIG_CMD_DFL & ~(CFG_CMD_NONSTD | CFG_CMD_ENV)) + +#define CONFIG_BOOTDELAY 0 +#define CONFIG_BOOTARGS "mem=32M console=ttyAM0,115200" +#define CONFIG_BOOTCOMMAND "gofsk 0x02200000" + +/* + * Miscellaneous configurable options + */ +#define CFG_LONGHELP /* undef to save memory */ +#define CFG_PROMPT "boot > " /* Monitor Command Prompt */ +#define CFG_CBSIZE 256 /* Console I/O Buffer Size */ +#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ +#define CFG_MAXARGS 16 /* max number of command args */ +#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ + +#define CFG_MEMTEST_START 0x00800000 /* memtest works on */ +#define CFG_MEMTEST_END 0x01000000 /* 16 MB in DRAM */ + +#undef CFG_CLKS_IN_HZ /* everything, incl board info, in Hz */ + +#define CFG_LOAD_ADDR 0x00008000 /* default load address */ + +#define CFG_HZ (1000) /* 1ms resolution ticks */ + +/*----------------------------------------------------------------------- + * Stack sizes + * + * The stack sizes are set up in start.S using the settings below + */ +#define CONFIG_STACKSIZE (128*1024) /* regular stack */ +#ifdef CONFIG_USE_IRQ +#define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */ +#define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */ +#endif + +/*----------------------------------------------------------------------- + * Physical Memory Map + */ +#define CONFIG_NR_DRAM_BANKS 1 /* we have 1 bank of DRAM */ +#define PHYS_SDRAM_1 0x00000000 /* SDRAM Bank #1 */ +#define PHYS_SDRAM_1_SIZE 0x02000000 /* 32 MB */ + +#define PHYS_FLASH_1 0x02000000 /* Flash Bank #1 */ +#define PHYS_FLASH_SECT_SIZE 0x00020000 /* 128 KB sectors (x1) */ +#define CFG_FLASH_BASE PHYS_FLASH_1 + +/*----------------------------------------------------------------------- + * FLASH and environment organization + */ +#define CFG_MAX_FLASH_BANKS 2 /* max number of flash banks */ +#define CFG_MAX_FLASH_SECT (128) /* max number of sectors on one chip */ + +/* timeout values are in ticks */ +#define CFG_FLASH_ERASE_TOUT (20*CFG_HZ) /* Timeout for Flash Erase */ +#define CFG_FLASH_WRITE_TOUT (20*CFG_HZ) /* Timeout for Flash Write */ + +#define CFG_ENV_SIZE 0x20000 /* Total Size of Environment */ + +#endif /* __CONFIG_H */