diff options
Diffstat (limited to 'board/armltd/versatile')
| -rw-r--r-- | board/armltd/versatile/Makefile | 51 | ||||
| -rw-r--r-- | board/armltd/versatile/config.mk | 5 | ||||
| -rw-r--r-- | board/armltd/versatile/flash.c | 514 | ||||
| -rw-r--r-- | board/armltd/versatile/lowlevel_init.S | 34 | ||||
| -rwxr-xr-x | board/armltd/versatile/split_by_variant.sh | 42 | ||||
| -rw-r--r-- | board/armltd/versatile/u-boot.lds | 51 | ||||
| -rw-r--r-- | board/armltd/versatile/versatile.c | 98 |
7 files changed, 795 insertions, 0 deletions
diff --git a/board/armltd/versatile/Makefile b/board/armltd/versatile/Makefile new file mode 100644 index 0000000..044a429 --- /dev/null +++ b/board/armltd/versatile/Makefile @@ -0,0 +1,51 @@ +# +# (C) Copyright 2000-2006 +# 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).a + +COBJS := versatile.o flash.o +SOBJS := lowlevel_init.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $(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/armltd/versatile/config.mk b/board/armltd/versatile/config.mk new file mode 100644 index 0000000..25b79b3 --- /dev/null +++ b/board/armltd/versatile/config.mk @@ -0,0 +1,5 @@ +# +# image should be loaded at 0x01000000 +# + +TEXT_BASE = 0x01000000 diff --git a/board/armltd/versatile/flash.c b/board/armltd/versatile/flash.c new file mode 100644 index 0000000..3bdc895 --- /dev/null +++ b/board/armltd/versatile/flash.c @@ -0,0 +1,514 @@ +/* + * (C) Copyright 2001 + * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net + * + * (C) Copyright 2001-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2003 + * Texas Instruments, <www.ti.com> + * Kshitij Gupta <Kshitij@ti.com> + * + * 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> + +#define PHYS_FLASH_SECT_SIZE 0x00020000 /* 256 KB sectors (x2) */ +flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ + +/* Board support for 1 or 2 flash devices */ +#define FLASH_PORT_WIDTH32 +#undef FLASH_PORT_WIDTH16 + +#ifdef FLASH_PORT_WIDTH16 +#define FLASH_PORT_WIDTH ushort +#define FLASH_PORT_WIDTHV vu_short +#define SWAP(x) __swab16(x) +#else +#define FLASH_PORT_WIDTH ulong +#define FLASH_PORT_WIDTHV vu_long +#define SWAP(x) __swab32(x) +#endif + +#define FPW FLASH_PORT_WIDTH +#define FPWV FLASH_PORT_WIDTHV + +#define mb() __asm__ __volatile__ ("" : : : "memory") + + +/* Flash Organization Structure */ +typedef struct OrgDef { + unsigned int sector_number; + unsigned int sector_size; +} OrgDef; + + +/* Flash Organizations */ +OrgDef OrgIntel_28F256K3[] = { + {256, 128 * 1024}, /* 256 * 128kBytes sectors */ +}; + + +/*----------------------------------------------------------------------- + * Functions + */ +unsigned long flash_init (void); +static ulong flash_get_size (FPW * addr, flash_info_t * info); +static int write_data (flash_info_t * info, ulong dest, FPW data); +static void flash_get_offsets (ulong base, flash_info_t * info); +void inline spin_wheel (void); +void flash_print_info (flash_info_t * info); +void flash_unprotect_sectors (FPWV * addr); +int flash_erase (flash_info_t * info, int s_first, int s_last); +int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt); + +/*----------------------------------------------------------------------- + */ + +static void flash_vpp(int on) +{ + unsigned int tmp; + + tmp = *(unsigned int *)(VERSATILE_FLASHCTRL); + + if (on) + tmp |= VERSATILE_FLASHPROG_FLVPPEN; + else + tmp &= ~VERSATILE_FLASHPROG_FLVPPEN; + + *(unsigned int *)(VERSATILE_FLASHCTRL) = tmp; +} + +unsigned long flash_init (void) +{ + int i; + ulong size = 0; + for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { + switch (i) { + case 0: + flash_vpp(1); + flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]); + flash_get_offsets (PHYS_FLASH_1, &flash_info[i]); + flash_vpp(0); + 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, + CONFIG_SYS_FLASH_BASE, + CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1, &flash_info[0]); + + return size; +} + +/*----------------------------------------------------------------------- + */ +static void flash_get_offsets (ulong base, flash_info_t * info) +{ + int i; + OrgDef *pOrgDef; + + pOrgDef = OrgIntel_28F256K3; + if (info->flash_id == FLASH_UNKNOWN) { + return; + } + + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { + for (i = 0; i < info->sector_count; i++) { + if (i > 255) { + info->start[i] = base + (i * 0x8000); + info->protect[i] = 0; + } else { + 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_28F256L18T: + printf ("FLASH 28F256L18T\n"); + break; + case FLASH_28F256K3: + printf ("FLASH 28F256K3\n"); + break; + default: + printf ("Unknown Chip Type\n"); + break; + } + + printf (" Size: %ld MB in %d Sectors\n", + info->size >> 20, info->sector_count); + + printf (" Sector Start Addresses:"); + for (i = 0; i < info->sector_count; ++i) { + if ((i % 5) == 0) + printf ("\n "); + printf (" %08lX%s", + info->start[i], info->protect[i] ? " (RO)" : " "); + } + printf ("\n"); + return; +} + +/* + * The following code cannot be run from FLASH! + */ +static ulong flash_get_size (FPW * addr, flash_info_t * info) +{ + volatile FPW value; + + /* Write auto select command: read Manufacturer ID */ + addr[0x5555] = (FPW) 0x00AA00AA; + addr[0x2AAA] = (FPW) 0x00550055; + addr[0x5555] = (FPW) 0x00900090; + + mb (); + value = addr[0]; + switch (value) { + + case (FPW) INTEL_MANUFACT: + info->flash_id = FLASH_MAN_INTEL; + break; + + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ + return (0); /* no or unknown flash */ + } + + mb (); + value = addr[1]; /* device ID */ + switch (value) { + + case (FPW) (INTEL_ID_28F256L18T): + info->flash_id += FLASH_28F256L18T; + info->sector_count = 259; + info->size = 0x02000000; + break; /* => 32 MB */ + + case (FPW)(INTEL_ID_28F256K3): + info->flash_id += FLASH_28F256K3; + info->sector_count = 256; + info->size = 0x02000000; + break; + + default: + info->flash_id = FLASH_UNKNOWN; + break; + } + + if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) { + printf ("** ERROR: sector count %d > max (%d) **\n", + info->sector_count, CONFIG_SYS_MAX_FLASH_SECT); + info->sector_count = CONFIG_SYS_MAX_FLASH_SECT; + } + + addr[0] = (FPW) 0x00FF00FF; /* restore read mode */ + + return (info->size); +} + + +/* unprotects a sector for write and erase + * on some intel parts, this unprotects the entire chip, but it + * wont hurt to call this additional times per sector... + */ +void flash_unprotect_sectors (FPWV * addr) +{ +#define PD_FINTEL_WSMS_READY_MASK 0x0080 + + *addr = (FPW) 0x00500050; /* clear status register */ + + /* this sends the clear lock bit command */ + *addr = (FPW) 0x00600060; + *addr = (FPW) 0x00D000D0; +} + + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t * info, int s_first, int s_last) +{ + int flag, prot, sect; + ulong type, start, last; + int rcode = 0; + + if ((s_first < 0) || (s_first > s_last)) { + if (info->flash_id == FLASH_UNKNOWN) { + printf ("- missing\n"); + } else { + printf ("- no sectors to erase\n"); + } + return 1; + } + + type = (info->flash_id & FLASH_VENDMASK); + if ((type != FLASH_MAN_INTEL)) { + printf ("Can't erase unknown flash type %08lx - aborted\n", + info->flash_id); + return 1; + } + + prot = 0; + for (sect = s_first; sect <= s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + + if (prot) { + printf ("- Warning: %d protected sectors will not be erased!\n", + prot); + } else { + printf ("\n"); + } + + flash_vpp(1); + + start = get_timer (0); + last = start; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect <= s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + FPWV *addr = (FPWV *) (info->start[sect]); + FPW status; + + printf ("Erasing sector %2d ... ", sect); + + flash_unprotect_sectors (addr); + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked (); + + *addr = (FPW) 0x00500050;/* clear status register */ + *addr = (FPW) 0x00200020;/* erase setup */ + *addr = (FPW) 0x00D000D0;/* erase confirm */ + + while (((status = + *addr) & (FPW) 0x00800080) != + (FPW) 0x00800080) { + if (get_timer_masked () > + CONFIG_SYS_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + /* suspend erase */ + *addr = (FPW) 0x00B000B0; + /* reset to read mode */ + *addr = (FPW) 0x00FF00FF; + rcode = 1; + break; + } + } + + /* clear status register cmd. */ + *addr = (FPW) 0x00500050; + *addr = (FPW) 0x00FF00FF;/* resest to read mode */ + printf (" done\n"); + } + } + + flash_vpp(0); + + return rcode; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + * 4 - Flash not identified + */ + +int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) +{ + ulong cp, wp; + FPW data; + int count, i, l, rc, port_width; + + if (info->flash_id == FLASH_UNKNOWN) { + return 4; + } +/* get lower word aligned address */ +#ifdef FLASH_PORT_WIDTH16 + wp = (addr & ~1); + port_width = 2; +#else + wp = (addr & ~3); + port_width = 4; +#endif + + flash_vpp(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, SWAP (data))) != 0) { + flash_vpp(0); + return (rc); + } + wp += port_width; + } + + /* + * handle word aligned part + */ + count = 0; + while (cnt >= port_width) { + data = 0; + for (i = 0; i < port_width; ++i) { + data = (data << 8) | *src++; + } + if ((rc = write_data (info, wp, SWAP (data))) != 0) { + flash_vpp(0); + return (rc); + } + wp += port_width; + cnt -= port_width; + if (count++ > 0x800) { + spin_wheel (); + count = 0; + } + } + + if (cnt == 0) { + flash_vpp(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); + } + + rc = write_data (info, wp, SWAP (data)); + + flash_vpp(0); + + return rc; +} + +/*----------------------------------------------------------------------- + * Write a word or halfword to Flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +static int write_data (flash_info_t * info, ulong dest, FPW data) +{ + FPWV *addr = (FPWV *) dest; + ulong status; + int flag; + + /* Check if Flash is (sufficiently) erased */ + if ((*addr & data) != data) { + printf ("not erased at %08lx (%lx)\n", (ulong) addr, (ulong) *addr); + return (2); + } + + flash_vpp(1); + + flash_unprotect_sectors (addr); + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + *addr = (FPW) 0x00400040; /* write setup */ + *addr = data; + + /* arm simple, non interrupt dependent timer */ + reset_timer_masked (); + + /* wait while polling the status register */ + while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) { + if (get_timer_masked () > CONFIG_SYS_FLASH_WRITE_TOUT) { + *addr = (FPW) 0x00FF00FF; /* restore read mode */ + flash_vpp(0); + return (1); + } + } + *addr = (FPW) 0x00FF00FF; /* restore read mode */ + flash_vpp(0); + 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 --git a/board/armltd/versatile/lowlevel_init.S b/board/armltd/versatile/lowlevel_init.S new file mode 100644 index 0000000..bdfce2d --- /dev/null +++ b/board/armltd/versatile/lowlevel_init.S @@ -0,0 +1,34 @@ +/* + * Board specific setup info + * + * (C) Copyright 2003, ARM Ltd. + * Philippe Robin, <philippe.robin@arm.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <version.h> + +/* Set up the platform, once the cpu has been initialized */ +.globl lowlevel_init +lowlevel_init: + + /* All done by Versatile's boot monitor! */ + mov pc, lr diff --git a/board/armltd/versatile/split_by_variant.sh b/board/armltd/versatile/split_by_variant.sh new file mode 100755 index 0000000..475e5a3 --- /dev/null +++ b/board/armltd/versatile/split_by_variant.sh @@ -0,0 +1,42 @@ +#!/bin/sh +# --------------------------------------------------------- +# Set the core module defines according to Core Module +# --------------------------------------------------------- +# --------------------------------------------------------- +# Set up the Versatile type define +# --------------------------------------------------------- + +mkdir -p ${obj}include +variant=PB926EJ-S +if [ "$1" = "" ] +then + echo "$0:: No parameters - using versatilepb_config" + echo "#define CONFIG_ARCH_VERSATILE_PB" > ${obj}include/config.h + variant=PB926EJ-S +else + case "$1" in + versatilepb_config | \ + versatile_config) + echo "#define CONFIG_ARCH_VERSATILE_PB" > ${obj}include/config.h + ;; + + versatileab_config) + echo "#define CONFIG_ARCH_VERSATILE_AB" > ${obj}include/config.h + variant=AB926EJ-S + ;; + + + *) + echo "$0:: Unrecognised config - using versatilepb_config" + echo "#define CONFIG_ARCH_VERSATILE_PB" > ${obj}include/config.h + variant=PB926EJ-S + ;; + + esac + +fi +# --------------------------------------------------------- +# Complete the configuration +# --------------------------------------------------------- +$MKCONFIG -a versatile arm arm926ejs versatile armltd versatile +echo "Variant:: $variant" diff --git a/board/armltd/versatile/u-boot.lds b/board/armltd/versatile/u-boot.lds new file mode 100644 index 0000000..6e6e29b --- /dev/null +++ b/board/armltd/versatile/u-boot.lds @@ -0,0 +1,51 @@ +/* + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, <gj@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/arm926ejs/start.o (.text) + *(.text) + } + .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 (NOLOAD) : { *(.bss) . = ALIGN(4); } + _end = .; +} diff --git a/board/armltd/versatile/versatile.c b/board/armltd/versatile/versatile.c new file mode 100644 index 0000000..0f35caa --- /dev/null +++ b/board/armltd/versatile/versatile.c @@ -0,0 +1,98 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright 2002 + * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch> + * + * (C) Copyright 2003 + * Texas Instruments, <www.ti.com> + * Kshitij Gupta <Kshitij@ti.com> + * + * (C) Copyright 2004 + * ARM Ltd. + * Philippe Robin, <philippe.robin@arm.com> + * + * 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> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_SHOW_BOOT_PROGRESS) +void show_boot_progress(int progress) +{ + printf("Boot reached stage %d\n", progress); +} +#endif + +#define COMP_MODE_ENABLE ((unsigned int)0x0000EAEF) + +static inline void delay (unsigned long loops) +{ + __asm__ volatile ("1:\n" + "subs %0, %1, #1\n" + "bne 1b":"=r" (loops):"0" (loops)); +} + +/* + * Miscellaneous platform dependent initialisations + */ + +int board_init (void) +{ + /* + * set clock frequency: + * VERSATILE_REFCLK is 32KHz + * VERSATILE_TIMCLK is 1MHz + */ + *(volatile unsigned int *)(VERSATILE_SCTL_BASE) |= + ((VERSATILE_TIMCLK << VERSATILE_TIMER1_EnSel) | (VERSATILE_TIMCLK << VERSATILE_TIMER2_EnSel) | + (VERSATILE_TIMCLK << VERSATILE_TIMER3_EnSel) | (VERSATILE_TIMCLK << VERSATILE_TIMER4_EnSel)); + + /* arch number of Versatile Board */ + gd->bd->bi_arch_number = MACH_TYPE_VERSATILE_PB; + + /* adress of boot parameters */ + gd->bd->bi_boot_params = 0x00000100; + + gd->flags = 0; + + icache_enable (); + + return 0; +} + + +int misc_init_r (void) +{ + setenv("verify", "n"); + return (0); +} + +/****************************** + Routine: + Description: +******************************/ +int dram_init (void) +{ + return 0; +} |