diff options
Diffstat (limited to 'src/flash')
| -rw-r--r-- | src/flash/at91sam7.c | 32 | ||||
| -rw-r--r-- | src/flash/at91sam7.h | 2 | ||||
| -rw-r--r-- | src/flash/flash.c | 2 | ||||
| -rw-r--r-- | src/flash/tms470.c | 1292 | ||||
| -rw-r--r-- | src/flash/tms470.h | 39 |
5 files changed, 1349 insertions, 18 deletions
diff --git a/src/flash/at91sam7.c b/src/flash/at91sam7.c index 907302eb..cf354794 100644 --- a/src/flash/at91sam7.c +++ b/src/flash/at91sam7.c @@ -1,21 +1,21 @@ /*************************************************************************** - * Copyright (C) 2006 by Magnus Lundin * - * lundin@mlu.mine.nu * - * * - * 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. * - * * + * Copyright (C) 2006 by Magnus Lundin * + * lundin@mlu.mine.nu * + * * + * 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. * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * ***************************************************************************/ /*************************************************************************** diff --git a/src/flash/at91sam7.h b/src/flash/at91sam7.h index 19d5e4cc..20e0737d 100644 --- a/src/flash/at91sam7.h +++ b/src/flash/at91sam7.h @@ -1,6 +1,6 @@ /*************************************************************************** * Copyright (C) 2006 by Magnus Lundin * - * lundinªmlu.mine.nu * + * lundin@mlu.mine.nu * * * * 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 * diff --git a/src/flash/flash.c b/src/flash/flash.c index 925a1125..2e7cc453 100644 --- a/src/flash/flash.c +++ b/src/flash/flash.c @@ -75,7 +75,7 @@ flash_driver_t *flash_drivers[] = &stellaris_flash, &str9xpec_flash, &stm32x_flash, - &tms470_flash, + &tms470_flash, NULL, }; diff --git a/src/flash/tms470.c b/src/flash/tms470.c new file mode 100644 index 00000000..0a97f562 --- /dev/null +++ b/src/flash/tms470.c @@ -0,0 +1,1292 @@ +/***************************************************************************
+ * (c) Copyright 2007, 2008 by Christopher Kilgour *
+ * techie |_at_| whiterocker |_dot_| com *
+ * *
+ * 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. *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "log.h"
+#include "tms470.h"
+#include <string.h>
+#include <unistd.h>
+
+int
+tms470_register_commands( struct command_context_s *cmd_ctx );
+
+int
+tms470_flash_bank_command( struct command_context_s *cmd_ctx,
+ char *cmd,
+ char **args,
+ int argc,
+ struct flash_bank_s *bank );
+
+int
+tms470_erase( struct flash_bank_s *bank,
+ int first,
+ int last );
+
+int
+tms470_protect( struct flash_bank_s *bank,
+ int set,
+ int first,
+ int last );
+
+int
+tms470_write( struct flash_bank_s *bank,
+ u8 *buffer,
+ u32 offset,
+ u32 count );
+
+int
+tms470_probe( struct flash_bank_s *bank );
+
+int
+tms470_erase_check( struct flash_bank_s *bank );
+
+int
+tms470_protect_check( struct flash_bank_s *bank );
+
+int
+tms470_info( struct flash_bank_s *bank,
+ char *buf,
+ int buf_size );
+
+flash_driver_t tms470_flash =
+ {
+ .name = "tms470",
+ .register_commands = tms470_register_commands,
+ .flash_bank_command = tms470_flash_bank_command,
+ .erase = tms470_erase,
+ .protect = tms470_protect,
+ .write = tms470_write,
+ .probe = tms470_probe,
+ .erase_check = tms470_erase_check,
+ .protect_check = tms470_protect_check,
+ .info = tms470_info
+ };
+
+/* ----------------------------------------------------------------------
+ Internal Support, Helpers
+ ---------------------------------------------------------------------- */
+
+const flash_sector_t TMS470R1A256_SECTORS[] =
+ {
+ { 0x00000000, 0x00002000, -1, -1 },
+ { 0x00002000, 0x00002000, -1, -1 },
+ { 0x00004000, 0x00002000, -1, -1 },
+ { 0x00006000, 0x00002000, -1, -1 },
+ { 0x00008000, 0x00008000, -1, -1 },
+ { 0x00010000, 0x00008000, -1, -1 },
+ { 0x00018000, 0x00008000, -1, -1 },
+ { 0x00020000, 0x00008000, -1, -1 },
+ { 0x00028000, 0x00008000, -1, -1 },
+ { 0x00030000, 0x00008000, -1, -1 },
+ { 0x00038000, 0x00002000, -1, -1 },
+ { 0x0003A000, 0x00002000, -1, -1 },
+ { 0x0003C000, 0x00002000, -1, -1 },
+ { 0x0003E000, 0x00002000, -1, -1 },
+ };
+
+#define TMS470R1A256_NUM_SECTORS \
+ (sizeof(TMS470R1A256_SECTORS)/sizeof(TMS470R1A256_SECTORS[0]))
+
+const flash_sector_t TMS470R1A288_BANK0_SECTORS[] =
+ {
+ { 0x00000000, 0x00002000, -1, -1 },
+ { 0x00002000, 0x00002000, -1, -1 },
+ { 0x00004000, 0x00002000, -1, -1 },
+ { 0x00006000, 0x00002000, -1, -1 },
+ };
+
+#define TMS470R1A288_BANK0_NUM_SECTORS \
+ (sizeof(TMS470R1A288_BANK0_SECTORS)/sizeof(TMS470R1A288_BANK0_SECTORS[0]))
+
+const flash_sector_t TMS470R1A288_BANK1_SECTORS[] =
+ {
+ { 0x00040000, 0x00010000, -1, -1 },
+ { 0x00050000, 0x00010000, -1, -1 },
+ { 0x00060000, 0x00010000, -1, -1 },
+ { 0x00070000, 0x00010000, -1, -1 },
+ };
+
+#define TMS470R1A288_BANK1_NUM_SECTORS \
+ (sizeof(TMS470R1A288_BANK1_SECTORS)/sizeof(TMS470R1A288_BANK1_SECTORS[0]))
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_read_part_info( struct flash_bank_s *bank )
+{
+ tms470_flash_bank_t *tms470_info = bank->driver_priv;
+ target_t *target = bank->target;
+ u32 device_ident_reg;
+ u32 silicon_version;
+ u32 technology_family;
+ u32 rom_flash;
+ u32 part_number;
+ char * part_name;
+
+ if (target->state != TARGET_HALTED)
+ {
+ WARNING( "Cannot communicate... target not halted." );
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ /* read and parse the device identification register */
+ target_read_u32( target, 0xFFFFFFF0, &device_ident_reg );
+
+ INFO( "device_ident_reg=0x%08x", device_ident_reg );
+
+ if ((device_ident_reg & 7) == 0)
+ {
+ WARNING( "Cannot identify target as a TMS470 family." );
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ silicon_version = (device_ident_reg >> 12) & 0xF;
+ technology_family = (device_ident_reg >> 11) & 1;
+ rom_flash = (device_ident_reg >> 10) & 1;
+ part_number = (device_ident_reg >> 3) & 0x7f;
+
+ /*
+ * If the part number is known, determine if the flash bank is valid
+ * based on the base address being within the known flash bank
+ * ranges. Then fixup/complete the remaining fields of the flash
+ * bank structure.
+ */
+ switch( part_number )
+ {
+ case 0x0a:
+ part_name = "TMS470R1A256";
+
+ if (bank->base >= 0x00040000)
+ {
+ ERROR( "No %s flash bank contains base address 0x%08x.",
+ part_name, bank->base );
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ tms470_info->ordinal = 0;
+ bank->base = 0x00000000;
+ bank->size = 256*1024;
+ bank->num_sectors = TMS470R1A256_NUM_SECTORS;
+ bank->sectors = malloc( sizeof( TMS470R1A256_SECTORS ) );
+ if (!bank->sectors)
+ {
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ (void) memcpy( bank->sectors,
+ TMS470R1A256_SECTORS,
+ sizeof( TMS470R1A256_SECTORS ) );
+ break;
+
+ case 0x2b:
+ part_name = "TMS470R1A288";
+
+ if ((bank->base >= 0x00000000) && (bank->base < 0x00008000))
+ {
+ tms470_info->ordinal = 0;
+ bank->base = 0x00000000;
+ bank->size = 32*1024;
+ bank->num_sectors = TMS470R1A288_BANK0_NUM_SECTORS;
+ bank->sectors = malloc( sizeof( TMS470R1A288_BANK0_SECTORS ) );
+ if (!bank->sectors)
+ {
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ (void) memcpy( bank->sectors,
+ TMS470R1A288_BANK0_SECTORS,
+ sizeof( TMS470R1A288_BANK0_SECTORS ) );
+ }
+ else if ((bank->base >= 0x00040000) && (bank->base < 0x00080000))
+ {
+ tms470_info->ordinal = 1;
+ bank->base = 0x00040000;
+ bank->size = 256*1024;
+ bank->num_sectors = TMS470R1A288_BANK1_NUM_SECTORS;
+ bank->sectors = malloc( sizeof( TMS470R1A288_BANK1_SECTORS ) );
+ if (!bank->sectors)
+ {
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ (void) memcpy( bank->sectors,
+ TMS470R1A288_BANK1_SECTORS,
+ sizeof( TMS470R1A288_BANK1_SECTORS ) );
+ }
+ else
+ {
+ ERROR( "No %s flash bank contains base address 0x%08x.",
+ part_name, bank->base );
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ break;
+
+ default:
+ WARNING( "Could not identify part 0x%02x as a member of the TMS470 family.",
+ part_number );
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ /* turn off memory selects */
+ target_write_u32( target, 0xFFFFFFE4, 0x00000000 );
+ target_write_u32( target, 0xFFFFFFE0, 0x00000000 );
+
+ bank->chip_width = 32;
+ bank->bus_width = 32;
+
+ INFO( "Identified %s, ver=%d, core=%s, nvmem=%s.",
+ part_name,
+ silicon_version,
+ (technology_family ? "1.8v" : "3.3v"),
+ (rom_flash ? "rom" : "flash") );
+
+ tms470_info->device_ident_reg = device_ident_reg;
+ tms470_info->silicon_version = silicon_version;
+ tms470_info->technology_family = technology_family;
+ tms470_info->rom_flash = rom_flash;
+ tms470_info->part_number = part_number;
+ tms470_info->part_name = part_name;
+
+ /*
+ * Disable reset on address access violation.
+ */
+ target_write_u32( target, 0xFFFFFFE0, 0x00004007 );
+
+ return ERROR_OK;
+}
+
+/* ---------------------------------------------------------------------- */
+
+u32 keysSet = 0;
+u32 flashKeys[4];
+
+int
+tms470_handle_flash_keyset_command( struct command_context_s * cmd_ctx,
+ char * cmd,
+ char ** args,
+ int argc )
+{
+ if (argc > 4)
+ {
+ command_print( cmd_ctx, "tms470 flash_keyset <key0> <key1> <key2> <key3>" );
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ else if (argc == 4)
+ {
+ int i;
+
+ for( i=0; i<4; i++ )
+ {
+ int start = (0 == strncmp( args[i], "0x", 2 )) ? 2 : 0;
+ if (1 != sscanf( &args[i][start], "%x", &flashKeys[i] ))
+ {
+ command_print( cmd_ctx, "could not process flash key %s", args[i] );
+ ERROR( "could not process flash key %s", args[i] );
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ }
+
+ keysSet = 1;
+ }
+ else if (argc != 0)
+ {
+ command_print( cmd_ctx, "tms470 flash_keyset <key0> <key1> <key2> <key3>" );
+ return ERROR_INVALID_ARGUMENTS;
+ }
+
+ if (keysSet)
+ {
+ command_print( cmd_ctx, "using flash keys 0x%08x, 0x%08x, 0x%08x, 0x%08x",
+ flashKeys[0], flashKeys[1], flashKeys[2], flashKeys[3] );
+ }
+ else
+ {
+ command_print( cmd_ctx, "flash keys not set" );
+ }
+
+ return ERROR_OK;
+}
+
+const u32 FLASH_KEYS_ALL_ONES[] = { 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, };
+
+const u32 FLASH_KEYS_ALL_ZEROS[] = { 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, };
+
+const u32 FLASH_KEYS_MIX1[] = { 0xf0fff0ff, 0xf0fff0ff,
+ 0xf0fff0ff, 0xf0fff0ff };
+
+const u32 FLASH_KEYS_MIX2[] = { 0x0000ffff, 0x0000ffff,
+ 0x0000ffff, 0x0000ffff };
+
+/* ---------------------------------------------------------------------- */
+
+int oscMHz = 12;
+
+int
+tms470_handle_osc_megahertz_command( struct command_context_s * cmd_ctx,
+ char * cmd,
+ char ** args,
+ int argc )
+{
+ if (argc > 1)
+ {
+ command_print( cmd_ctx, "tms470 osc_megahertz <MHz>" );
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ else if (argc == 1)
+ {
+ sscanf( args[0], "%d", &oscMHz );
+ }
+
+ if (oscMHz <= 0)
+ {
+ ERROR( "osc_megahertz must be positive and non-zero!" );
+ command_print( cmd_ctx, "osc_megahertz must be positive and non-zero!" );
+ oscMHz = 12;
+ return ERROR_INVALID_ARGUMENTS;
+ }
+
+ command_print( cmd_ctx, "osc_megahertz=%d", oscMHz );
+
+ return ERROR_OK;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int plldis = 0;
+
+int
+tms470_handle_plldis_command( struct command_context_s * cmd_ctx,
+ char * cmd,
+ char ** args,
+ int argc )
+{
+ if (argc > 1)
+ {
+ command_print( cmd_ctx, "tms470 plldis <0|1>" );
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ else if (argc == 1)
+ {
+ sscanf( args[0], "%d", &plldis );
+ plldis = plldis ? 1 : 0;
+ }
+
+ command_print( cmd_ctx, "plldis=%d", plldis );
+
+ return ERROR_OK;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_check_flash_unlocked( target_t * target )
+{
+ u32 fmbbusy;
+
+ target_read_u32( target, 0xFFE89C08, &fmbbusy );
+ INFO( "tms470 fmbbusy=0x%08x -> %s",
+ fmbbusy,
+ fmbbusy & 0x8000 ? "unlocked" : "LOCKED" );
+ return fmbbusy & 0x8000 ? ERROR_OK : ERROR_FLASH_OPERATION_FAILED;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_try_flash_keys( target_t * target,
+ const u32 * key_set )
+{
+ u32 glbctrl, fmmstat;
+ int retval = ERROR_FLASH_OPERATION_FAILED;
+
+ /* set GLBCTRL.4 */
+ target_read_u32( target, 0xFFFFFFDC, &glbctrl );
+ target_write_u32( target, 0xFFFFFFDC, glbctrl | 0x10 );
+
+ /* only perform the key match when 3VSTAT is clear */
+ target_read_u32( target, 0xFFE8BC0C, &fmmstat );
+ if (!(fmmstat & 0x08))
+ {
+ unsigned i;
+ u32 fmmac2, fmbptr, fmbac2, fmbbusy, orig_fmregopt;
+
+ target_write_u32( target, 0xFFE8BC04, fmmstat & ~0x07 );
+
+ /* wait for pump ready */
+ do
+ {
+ target_read_u32( target, 0xFFE8A814, &fmbptr );
+ usleep( 1000 );
+ }
+ while( !(fmbptr & 0x0200) );
+
+ /* force max wait states */
+ target_read_u32( target, 0xFFE88004, &fmbac2 );
+ target_write_u32( target, 0xFFE88004, fmbac2 | 0xff );
+
+ /* save current access mode, force normal read mode */
+ target_read_u32( target, 0xFFE89C00, &orig_fmregopt );
+ target_write_u32( target, 0xFFE89C00, 0x00 );
+
+ for( i=0; i<4; i++ )
+ {
+ u32 tmp;
+
+ /* There is no point displaying the value of tmp, it is
+ * filtered by the chip. The purpose of this read is to
+ * prime the unlocking logic rather than read out the value.
+ */
+ target_read_u32( target, 0x00001FF0+4*i, &tmp );
+
+ INFO( "tms470 writing fmpkey=0x%08x", key_set[i] );
+ target_write_u32( target, 0xFFE89C0C, key_set[i] );
+ }
+
+ if (ERROR_OK == tms470_check_flash_unlocked( target ))
+ {
+ /*
+ * There seems to be a side-effect of reading the FMPKEY
+ * register in that it re-enables the protection. So we
+ * re-enable it.
+ */
+ for( i=0; i<4; i++ )
+ {
+ u32 tmp;
+ target_read_u32( target, 0x00001FF0+4*i, &tmp );
+ target_write_u32( target, 0xFFE89C0C, key_set[i] );
+ }
+ retval = ERROR_OK;
+ }
+
+ /* restore settings */
+ target_write_u32( target, 0xFFE89C00, orig_fmregopt );
+ target_write_u32( target, 0xFFE88004, fmbac2 );
+ }
+
+ /* clear config bit */
+ target_write_u32( target, 0xFFFFFFDC, glbctrl );
+
+ return retval;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_unlock_flash( struct flash_bank_s * bank )
+{
+ tms470_flash_bank_t * tms470_info = bank->driver_priv;
+ target_t * target = bank->target;
+ const u32 * p_key_sets[5];
+ unsigned i, key_set_count;
+
+ if (keysSet)
+ {
+ p_key_sets[0] = flashKeys;
+ p_key_sets[1] = FLASH_KEYS_ALL_ONES;
+ p_key_sets[2] = FLASH_KEYS_ALL_ZEROS;
+ p_key_sets[3] = FLASH_KEYS_MIX1;
+ p_key_sets[4] = FLASH_KEYS_MIX2;
+ }
+ else
+ {
+ key_set_count = 4;
+ p_key_sets[0] = FLASH_KEYS_ALL_ONES;
+ p_key_sets[1] = FLASH_KEYS_ALL_ZEROS;
+ p_key_sets[2] = FLASH_KEYS_MIX1;
+ p_key_sets[3] = FLASH_KEYS_MIX2;
+ }
+
+ for( i=0; i<key_set_count; i++ )
+ {
+ if (tms470_try_flash_keys( target, p_key_sets[i] ) == ERROR_OK)
+ {
+ INFO( "tms470 flash is unlocked" );
+ return ERROR_OK;
+ }
+ }
+
+ WARNING( "tms470 could not unlock flash memory protection level 2" );
+ return ERROR_FLASH_OPERATION_FAILED;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_flash_initialize_internal_state_machine( struct flash_bank_s * bank )
+{
+ u32 fmmac2, fmmac1, fmmaxep, k, delay, glbctrl, sysclk;
+ target_t *target = bank->target;
+ tms470_flash_bank_t * tms470_info = bank->driver_priv;
+ int result = ERROR_OK;
+
+ /*
+ * Select the desired bank to be programmed by writing BANK[2:0] of
+ * FMMAC2.
+ */
+ target_read_u32( target, 0xFFE8BC04, &fmmac2 );
+ fmmac2 &= ~0x0007;
+ fmmac2 |= (tms470_info->ordinal & 7);
+ target_write_u32( target, 0xFFE8BC04, fmmac2 );
+ DEBUG( "set fmmac2=0x%04x", fmmac2 );
+
+ /*
+ * Disable level 1 sector protection by setting bit 15 of FMMAC1.
+ */
+ target_read_u32( target, 0xFFE8BC00, &fmmac1 );
+ fmmac1 |= 0x8000;
+ target_write_u32( target, 0xFFE8BC00, fmmac1 );
+ DEBUG( "set fmmac1=0x%04x", fmmac1 );
+
+ /*
+ * FMTCREG=0x2fc0;
+ */
+ target_write_u32( target, 0xFFE8BC10, 0x2fc0 );
+ DEBUG( "set fmtcreg=0x2fc0" );
+
+ /*
+ * MAXPP=50
+ */
+ target_write_u32( target, 0xFFE8A07C, 50 );
+ DEBUG( "set fmmaxpp=50" );
+
+ /*
+ * MAXCP=0xf000+2000
+ */
+ target_write_u32( target, 0xFFE8A084, 0xf000+2000 );
+ DEBUG( "set fmmaxcp=0x%04x", 0xf000+2000 );
+
+ /*
+ * configure VHV
+ */
+ target_read_u32( target, 0xFFE8A080, &fmmaxep );
+ if (fmmaxep == 0xf000)
+ {
+ fmmaxep = 0xf000+4095;
+ target_write_u32( target, 0xFFE8A80C, 0x9964 );
+ DEBUG( "set fmptr3=0x9964" );
+ }
+ else
+ {
+ fmmaxep = 0xa000+4095;
+ target_write_u32( target, 0xFFE8A80C, 0x9b64 );
+ DEBUG( "set fmptr3=0x9b64" );
+ }
+ target_write_u32( target, 0xFFE8A080, fmmaxep );
+ DEBUG( "set fmmaxep=0x%04x", fmmaxep );
+
+ /*
+ * FMPTR4=0xa000
+ */
+ target_write_u32( target, 0xFFE8A810, 0xa000 );
+ DEBUG( "set fmptr4=0xa000" );
+
+ /*
+ * FMPESETUP, delay parameter selected based on clock frequency.
+ *
+ * According to the TI App Note SPNU257 and flashing code, delay is
+ * int((sysclk(MHz) + 1) / 2), with a minimum of 5. The system
+ * clock is usually derived from the ZPLL module, and selected by
+ * the plldis global.
+ */
+ target_read_u32( target, 0xFFFFFFDC, &glbctrl );
+ sysclk = (plldis ? 1 : (glbctrl & 0x08) ? 4 : 8 ) * oscMHz / (1 + (glbctrl & 7));
+ delay = (sysclk > 10) ? (sysclk + 1) / 2 : 5;
+ target_write_u32( target, 0xFFE8A018, (delay<<4)|(delay<<8) );
+ DEBUG( "set fmpsetup=0x%04x", (delay<<4)|(delay<<8) );
+
+ /*
+ * FMPVEVACCESS, based on delay.
+ */
+ k = delay|(delay<<8);
+ target_write_u32( target, 0xFFE8A05C, k );
+ DEBUG( "set fmpvevaccess=0x%04x", k );
+
+ /*
+ * FMPCHOLD, FMPVEVHOLD, FMPVEVSETUP, based on delay.
+ */
+ k <<= 1;
+ target_write_u32( target, 0xFFE8A034, k );
+ DEBUG( "set fmpchold=0x%04x", k );
+ target_write_u32( target, 0xFFE8A040, k );
+ DEBUG( "set fmpvevhold=0x%04x", k );
+ target_write_u32( target, 0xFFE8A024, k );
+ DEBUG( "set fmpvevsetup=0x%04x", k );
+
+ /*
+ * FMCVACCESS, based on delay.
+ */
+ k = delay*16;
+ target_write_u32( target, 0xFFE8A060, k );
+ DEBUG( "set fmcvaccess=0x%04x", k );
+
+ /*
+ * FMCSETUP, based on delay.
+ */
+ k = 0x3000 | delay*20;
+ target_write_u32( target, 0xFFE8A020, k );
+ DEBUG( "set fmcsetup=0x%04x", k );
+
+ /*
+ * FMEHOLD, based on delay.
+ */
+ k = (delay*20) << 2;
+ target_write_u32( target, 0xFFE8A038, k );
+ DEBUG( "set fmehold=0x%04x", k );
+
+ /*
+ * PWIDTH, CWIDTH, EWIDTH, based on delay.
+ */
+ target_write_u32( target, 0xFFE8A050, delay*8 );
+ DEBUG( "set fmpwidth=0x%04x", delay*8 );
+ target_write_u32( target, 0xFFE8A058, delay*1000 );
+ DEBUG( "set fmcwidth=0x%04x", delay*1000 );
+ target_write_u32( target, 0xFFE8A054, delay*5400 );
+ DEBUG( "set fmewidth=0x%04x", delay*5400 );
+
+ return result;
+}
+
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_flash_status( struct flash_bank_s * bank )
+{
+ target_t *target = bank->target;
+ int result = ERROR_OK;
+ u32 fmmstat;
+
+ target_read_u32( target, 0xFFE8BC0C, &fmmstat );
+ DEBUG( "set fmmstat=0x%04x", fmmstat );
+
+ if (fmmstat & 0x0080)
+ {
+ WARNING( "tms470 flash command: erase still active after busy clear." );
+ result = ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ if (fmmstat & 0x0040)
+ {
+ WARNING( "tms470 flash command: program still active after busy clear." );
+ result = ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ if (fmmstat & 0x0020)
+ {
+ WARNING( "tms470 flash command: invalid data command." );
+ result = ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ if (fmmstat & 0x0010)
+ {
+ WARNING( "tms470 flash command: program, erase or validate sector failed." );
+ result = ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ if (fmmstat & 0x0008)
+ {
+ WARNING( "tms470 flash command: voltage instability detected." );
+ result = ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ if (fmmstat & 0x0006)
+ {
+ WARNING( "tms470 flash command: command suspend detected." );
+ result = ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ if (fmmstat & 0x0001)
+ {
+ WARNING( "tms470 flash command: sector was locked." );
+ result = ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ return result;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_erase_sector( struct flash_bank_s * bank,
+ int sector )
+{
+ u32 glbctrl, orig_fmregopt, fmbsea, fmbseb, fmmstat;
+ target_t *target = bank->target;
+ u32 flashAddr = bank->base + bank->sectors[sector].offset;
+ int result = ERROR_OK;
+
+ /*
+ * Set the bit GLBCTRL4 of the GLBCTRL register (in the System
+ * module) to enable writing to the flash registers }.
+ */
+ target_read_u32( target, 0xFFFFFFDC, &glbctrl );
+ target_write_u32( target, 0xFFFFFFDC, glbctrl | 0x10 );
+ DEBUG( "set glbctrl=0x%08x", glbctrl | 0x10 );
+
+ /* Force normal read mode. */
+ target_read_u32( target, 0xFFE89C00, &orig_fmregopt );
+ target_write_u32( target, 0xFFE89C00, 0 );
+ DEBUG( "set fmregopt=0x%08x", 0 );
+
+ (void) tms470_flash_initialize_internal_state_machine( bank );
+
+ /*
+ * Select one or more bits in FMBSEA or FMBSEB to disable Level 1
+ * protection for the particular sector to be erased/written.
+ */
+ if (sector < 16)
+ {
+ target_read_u32( target, 0xFFE88008, &fmbsea );
+ target_write_u32( target, 0xFFE88008, fmbsea | (1<<sector) );
+ DEBUG( "set fmbsea=0x%04x", fmbsea | (1<<sector) );
+ }
+ else
+ {
+ target_read_u32( target, 0xFFE8800C, &fmbseb );
+ target_write_u32( target, 0xFFE8800C, fmbseb | (1<<(sector-16)) );
+ DEBUG( "set fmbseb=0x%04x", fmbseb | (1<<(sector-16)) );
+ }
+ bank->sectors[sector].is_protected = 0;
+
+ /*
+ * clear status regiser, sent erase command, kickoff erase
+ */
+ target_write_u16( target, flashAddr, 0x0040 );
+ DEBUG( "write *(u16 *)0x%08x=0x0040", flashAddr );
+ target_write_u16( target, flashAddr, 0x0020 );
+ DEBUG( "write *(u16 *)0x%08x=0x0020", flashAddr );
+ target_write_u16( target, flashAddr, 0xffff );
+ DEBUG( "write *(u16 *)0x%08x=0xffff", flashAddr );
+
+ /*
+ * Monitor FMMSTAT, busy until clear, then check and other flags for
+ * ultimate result of the operation.
+ */
+ do
+ {
+ target_read_u32( target, 0xFFE8BC0C, &fmmstat );
+ if (fmmstat & 0x0100)
+ {
+ usleep( 1000 );
+ }
+ }
+ while( fmmstat & 0x0100 );
+
+ result = tms470_flash_status( bank );
+
+ if (sector < 16)
+ {
+ target_write_u32( target, 0xFFE88008, fmbsea );
+ DEBUG( "set fmbsea=0x%04x", fmbsea );
+ bank->sectors[sector].is_protected =
+ fmbsea & (1<<sector) ? 0 : 1;
+ }
+ else
+ {
+ target_write_u32( target, 0xFFE8800C, fmbseb );
+ DEBUG( "set fmbseb=0x%04x", fmbseb );
+ bank->sectors[sector].is_protected =
+ fmbseb & (1<<(sector-16)) ? 0 : 1;
+ }
+ target_write_u32( target, 0xFFE89C00, orig_fmregopt );
+ DEBUG( "set fmregopt=0x%08x", orig_fmregopt );
+ target_write_u32( target, 0xFFFFFFDC, glbctrl );
+ DEBUG( "set glbctrl=0x%08x", glbctrl );
+
+ if (result == ERROR_OK)
+ {
+ bank->sectors[sector].is_erased = 1;
+ }
+
+ return result;
+}
+
+/* ----------------------------------------------------------------------
+ Implementation of Flash Driver Interfaces
+ ---------------------------------------------------------------------- */
+
+int
+tms470_register_commands( struct command_context_s *cmd_ctx )
+{
+ command_t *tms470_cmd = register_command( cmd_ctx,
+ NULL,
+ "tms470",
+ NULL,
+ COMMAND_ANY,
+ "applies to TI tms470 family" );
+
+ register_command( cmd_ctx,
+ tms470_cmd,
+ "flash_keyset",
+ tms470_handle_flash_keyset_command,
+ COMMAND_ANY,
+ "tms470 flash_keyset <key0> <key1> <key2> <key3>" );
+
+ register_command( cmd_ctx,
+ tms470_cmd,
+ "osc_megahertz",
+ tms470_handle_osc_megahertz_command,
+ COMMAND_ANY,
+ "tms470 osc_megahertz <MHz>" );
+
+ register_command( cmd_ctx,
+ tms470_cmd,
+ "plldis",
+ tms470_handle_plldis_command,
+ COMMAND_ANY,
+ "tms470 plldis <0/1>" );
+
+ return ERROR_OK;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_erase( struct flash_bank_s * bank,
+ int first,
+ int last )
+{
+ tms470_flash_bank_t *tms470_info = bank->driver_priv;
+ target_t *target = bank->target;
+ int sector, result = ERROR_OK;
+
+ if (!tms470_info->device_ident_reg)
+ {
+ tms470_read_part_info( bank );
+ }
+
+ if ((first < 0) ||
+ (first >= bank->num_sectors) ||
+ (last < 0) ||
+ (last >= bank->num_sectors) ||
+ (first > last))
+ {
+ ERROR( "Sector range %d to %d invalid.", first, last );
+ return ERROR_FLASH_SECTOR_INVALID;
+ }
+
+ result = tms470_unlock_flash( bank );
+ if (result != ERROR_OK)
+ {
+ return result;
+ }
+
+ for( sector=first; sector<=last; sector++ )
+ {
+ INFO( "Erasing tms470 bank %d sector %d...",
+ tms470_info->ordinal, sector );
+
+ result = tms470_erase_sector( bank, sector );
+
+ if (result != ERROR_OK)
+ {
+ ERROR( "tms470 could not erase flash sector." );
+ break;
+ }
+ else
+ {
+ INFO( "sector erased successfully." );
+ }
+ }
+
+ return result;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_protect( struct flash_bank_s * bank,
+ int set,
+ int first,
+ int last )
+{
+ tms470_flash_bank_t *tms470_info = bank->driver_priv;
+ target_t *target = bank->target;
+ u32 fmmac2, fmbsea, fmbseb;
+ int sector;
+
+ if (!tms470_info->device_ident_reg)
+ {
+ tms470_read_part_info( bank );
+ }
+
+ if ((first < 0) ||
+ (first >= bank->num_sectors) ||
+ (last < 0) ||
+ (last >= bank->num_sectors) ||
+ (first > last))
+ {
+ ERROR( "Sector range %d to %d invalid.", first, last );
+ return ERROR_FLASH_SECTOR_INVALID;
+ }
+
+ /* enable the appropriate bank */
+ target_read_u32( target, 0xFFE8BC04, &fmmac2 );
+ target_write_u32( target, 0xFFE8BC04,
+ (fmmac2 & ~7) | tms470_info->ordinal );
+
+ /* get the original sector proection flags for this bank */
+ target_read_u32( target, 0xFFE88008, &fmbsea );
+ target_read_u32( target, 0xFFE8800C, &fmbseb );
+
+ for( sector=0; sector<bank->num_sectors; sector++ )
+ {
+ if (sector < 16)
+ {
+ fmbsea = set ? fmbsea & ~(1<<sector) :
+ fmbsea | (1<<sector);
+ bank->sectors[sector].is_protected = set ? 1 : 0;
+ }
+ else
+ {
+ fmbseb = set ? fmbseb & ~(1<<(sector-16)) :
+ fmbseb | (1<<(sector-16));
+ bank->sectors[sector].is_protected = set ? 1 : 0;
+ }
+ }
+
+ /* update the protection bits */
+ target_write_u32( target, 0xFFE88008, fmbsea );
+ target_write_u32( target, 0xFFE8800C, fmbseb );
+
+ return ERROR_OK;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_write( struct flash_bank_s * bank,
+ u8 * buffer,
+ u32 offset,
+ u32 count )
+{
+ target_t *target = bank->target;
+ tms470_flash_bank_t *tms470_info = bank->driver_priv;
+ u32 glbctrl, fmbac2, orig_fmregopt, fmbsea, fmbseb, fmmaxpp, fmmstat;
+ int i, result = ERROR_OK;
+
+ if (!tms470_info->device_ident_reg)
+ {
+ tms470_read_part_info( bank );
+ }
+
+ INFO( "Writing %d bytes starting at 0x%08x",
+ count, bank->base + offset );
+
+ /* set GLBCTRL.4 */
+ target_read_u32( target, 0xFFFFFFDC, &glbctrl );
+ target_write_u32( target, 0xFFFFFFDC, glbctrl | 0x10 );
+
+ (void) tms470_flash_initialize_internal_state_machine( bank );
+
+ /* force max wait states */
+ target_read_u32( target, 0xFFE88004, &fmbac2 );
+ target_write_u32( target, 0xFFE88004, fmbac2 | 0xff );
+
+ /* save current access mode, force normal read mode */
+ target_read_u32( target, 0xFFE89C00, &orig_fmregopt );
+ target_write_u32( target, 0xFFE89C00, 0x00 );
+
+ /*
+ * Disable Level 1 protection for all sectors to be erased/written.
+ */
+ target_read_u32( target, 0xFFE88008, &fmbsea );
+ target_write_u32( target, 0xFFE88008, 0xffff );
+ target_read_u32( target, 0xFFE8800C, &fmbseb );
+ target_write_u32( target, 0xFFE8800C, 0xffff );
+
+ /* read MAXPP */
+ target_read_u32( target, 0xFFE8A07C, &fmmaxpp );
+
+ for( i=0; i<count; i+=2 )
+ {
+ u32 addr = bank->base + offset + i;
+ u16 word = (((u16) buffer[i]) << 8) | (u16) buffer[i+1];
+
+ if (word != 0xffff)
+ {
+ INFO( "writing 0x%04x at 0x%08x", word, addr );
+
+ /* clear status register */
+ target_write_u16( target, addr, 0x0040 );
+ /* program flash command */
+ target_write_u16( target, addr, 0x0010 );
+ /* burn the 16-bit word (big-endian) */
+ target_write_u16( target, addr, word );
+
+ /*
+ * Monitor FMMSTAT, busy until clear, then check and other flags
+ * for ultimate result of the operation.
+ */
+ do
+ {
+ target_read_u32( target, 0xFFE8BC0C, &fmmstat );
+ if (fmmstat & 0x0100)
+ {
+ usleep( 1000 );
+ }
+ }
+ while( fmmstat & 0x0100 );
+
+ if (fmmstat & 0x3ff)
+ {
+ ERROR( "fmstat=0x%04x", fmmstat );
+ ERROR( "Could not program word 0x%04x at address 0x%08x.",
+ word, addr );
+ result = ERROR_FLASH_OPERATION_FAILED;
+ break;
+ }
+ }
+ else
+ {
+ INFO( "skipping 0xffff at 0x%08x", addr );
+ }
+ }
+
+ /* restore */
+ target_write_u32( target, 0xFFE88008, fmbsea );
+ target_write_u32( target, 0xFFE8800C, fmbseb );
+ target_write_u32( target, 0xFFE88004, fmbac2 );
+ target_write_u32( target, 0xFFE89C00, orig_fmregopt );
+ target_write_u32( target, 0xFFFFFFDC, glbctrl );
+
+ return result;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_probe( struct flash_bank_s * bank )
+{
+ tms470_flash_bank_t * tms470_info = bank->driver_priv;
+
+ if (!tms470_info->device_ident_reg)
+ {
+ tms470_read_part_info( bank );
+ }
+
+ return ERROR_OK;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_erase_check( struct flash_bank_s * bank )
+{
+ target_t *target = bank->target;
+ tms470_flash_bank_t * tms470_info = bank->driver_priv;
+ int sector, result = ERROR_OK;
+ u32 fmmac2, fmbac2, glbctrl, orig_fmregopt;
+ static u8 buffer[64*1024];
+
+ if (!tms470_info->device_ident_reg)
+ {
+ tms470_read_part_info( bank );
+ }
+
+ /* set GLBCTRL.4 */
+ target_read_u32( target, 0xFFFFFFDC, &glbctrl );
+ target_write_u32( target, 0xFFFFFFDC, glbctrl | 0x10 );
+
+ /* save current access mode, force normal read mode */
+ target_read_u32( target, 0xFFE89C00, &orig_fmregopt );
+ target_write_u32( target, 0xFFE89C00, 0x00 );
+
+ /* enable the appropriate bank */
+ target_read_u32( target, 0xFFE8BC04, &fmmac2 );
+ target_write_u32( target, 0xFFE8BC04,
+ (fmmac2 & ~7) | tms470_info->ordinal );
+
+ /* TCR=0 */
+ target_write_u32( target, 0xFFE8BC10, 0x2fc0 );
+
+ /* clear TEZ in fmbrdy */
+ target_write_u32( target, 0xFFE88010, 0x0b );
+
+ /* save current wait states, force max */
+ target_read_u32( target, 0xFFE88004, &fmbac2 );
+ target_write_u32( target, 0xFFE88004, fmbac2 | 0xff );
+
+ /*
+ * The TI primitives inspect the flash memory by reading one 32-bit
+ * word at a time. Here we read an entire sector and inspect it in
+ * an attempt to reduce the JTAG overhead.
+ */
+ for( sector=0; sector<bank->num_sectors; sector++ )
+ {
+ if (bank->sectors[sector].is_erased != 1)
+ {
+ u32 i, addr = bank->base + bank->sectors[sector].offset;
+
+ INFO( "checking flash bank %d sector %d",
+ tms470_info->ordinal,
+ sector );
+
+ target_read_buffer( target,
+ addr,
+ bank->sectors[sector].size,
+ buffer );
+
+ bank->sectors[sector].is_erased = 1;
+ for( i=0; i<bank->sectors[sector].size; i++ )
+ {
+ if (buffer[i] != 0xff)
+ {
+ WARNING( "tms470 bank %d, sector %d, not erased.",
+ tms470_info->ordinal,
+ sector );
+ WARNING( "at location 0x%08x: flash data is 0x%02x.",
+ addr+i,
+ buffer[i] );
+
+ bank->sectors[sector].is_erased = 0;
+ break;
+ }
+ }
+ }
+ if (bank->sectors[sector].is_erased != 1)
+ {
+ result = ERROR_FLASH_SECTOR_NOT_ERASED;
+ break;
+ }
+ else
+ {
+ INFO( "sector erased" );
+ }
+ }
+
+ /* reset TEZ, wait states, read mode, GLBCTRL.4 */
+ target_write_u32( target, 0xFFE88010, 0x0f );
+ target_write_u32( target, 0xFFE88004, fmbac2 );
+ target_write_u32( target, 0xFFE89C00, orig_fmregopt );
+ target_write_u32( target, 0xFFFFFFDC, glbctrl );
+
+ return result;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_protect_check( struct flash_bank_s * bank )
+{
+ target_t *target = bank->target;
+ tms470_flash_bank_t * tms470_info = bank->driver_priv;
+ int sector, result = ERROR_OK;
+ u32 fmmac2, fmbsea, fmbseb;
+
+ if (!tms470_info->device_ident_reg)
+ {
+ tms470_read_part_info( bank );
+ }
+
+ /* enable the appropriate bank */
+ target_read_u32( target, 0xFFE8BC04, &fmmac2 );
+ target_write_u32( target, 0xFFE8BC04,
+ (fmmac2 & ~7) | tms470_info->ordinal );
+
+ target_read_u32( target, 0xFFE88008, &fmbsea );
+ target_read_u32( target, 0xFFE8800C, &fmbseb );
+
+ for( sector=0; sector<bank->num_sectors; sector++ )
+ {
+ int protected;
+
+ if (sector < 16)
+ {
+ protected = fmbsea & (1<<sector) ? 0 : 1;
+ bank->sectors[sector].is_protected = protected;
+ }
+ else
+ {
+ protected = fmbseb & (1<<(sector-16)) ? 0 : 1;
+ bank->sectors[sector].is_protected = protected;
+ }
+
+ DEBUG( "bank %d sector %d is %s",
+ tms470_info->ordinal,
+ sector,
+ protected ? "protected" : "not protected" );
+ }
+
+ return result;
+}
+
+/* ---------------------------------------------------------------------- */
+
+int
+tms470_info( struct flash_bank_s * bank,
+ char * buf,
+ int buf_size )
+{
+ int used = 0;
+ tms470_flash_bank_t * tms470_info = bank->driver_priv;
+
+ if (!tms470_info->device_ident_reg)
+ {
+ tms470_read_part_info( bank );
+ }
+
+ if (!tms470_info->device_ident_reg)
+ {
+ (void) snprintf(buf, buf_size, "Cannot identify target as a TMS470\n");
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ used += snprintf( buf, buf_size,
+ "\ntms470 information: Chip is %s\n",
+ tms470_info->part_name );
+ buf += used;
+ buf_size -= used;
+
+ used += snprintf( buf, buf_size,
+ "Flash protection level 2 is %s\n",
+ tms470_check_flash_unlocked( bank->target ) == ERROR_OK ? "disabled" : "enabled" );
+ buf += used;
+ buf_size -= used;
+
+ return ERROR_OK;
+}
+
+/* ---------------------------------------------------------------------- */
+
+/*
+ * flash bank tms470 <base> <size> <chip_width> <bus_width> <target>
+ * [options...]
+ */
+
+int
+tms470_flash_bank_command( struct command_context_s *cmd_ctx,
+ char *cmd,
+ char **args,
+ int argc,
+ struct flash_bank_s *bank )
+{
+ bank->driver_priv = malloc( sizeof( tms470_flash_bank_t ) );
+
+ if (!bank->driver_priv)
+ {
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+
+ (void) memset( bank->driver_priv, 0, sizeof( tms470_flash_bank_t ) );
+
+ return ERROR_OK;
+}
diff --git a/src/flash/tms470.h b/src/flash/tms470.h new file mode 100644 index 00000000..ee4afb2a --- /dev/null +++ b/src/flash/tms470.h @@ -0,0 +1,39 @@ +/***************************************************************************
+ * (c) Copyright 2007, 2008 by Christopher Kilgour *
+ * techie |_at_| whiterocker |_dot_| com *
+ * *
+ * 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 TMS470_DOT_H
+#define TMS470_DOT_H
+
+#include "flash.h"
+
+typedef struct tms470_flash_bank_s
+{
+ unsigned ordinal;
+
+ /* device identification register */
+ u32 device_ident_reg;
+ u32 silicon_version;
+ u32 technology_family;
+ u32 rom_flash;
+ u32 part_number;
+ char * part_name;
+} tms470_flash_bank_t;
+
+#endif /* TMS470_DOT_H */
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