diff options
author | wdenk <wdenk> | 2005-01-12 00:38:03 (GMT) |
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committer | wdenk <wdenk> | 2005-01-12 00:38:03 (GMT) |
commit | 5a95f6fbd21c542a6df0a41fb827ad7e7c9b17d8 (patch) | |
tree | 3e01df2db1ded87b4a8ced9ab2011fbf5056bcb8 /examples/smc91111_eeprom.c | |
parent | 289f932c5ff628bf21a05073243071a01a2d3b02 (diff) | |
download | u-boot-5a95f6fbd21c542a6df0a41fb827ad7e7c9b17d8.tar.xz |
* Patch by Robin Getz, 13 Oct 2004:
Add standalone application to change SMC91C111 MAC addresses,
see examples/README.smc91111_eeprom
* Patch by Xiaogeng (Shawn) Jin, 12 Oct 2004:
Fix Flash support for ARM Integrator CP.
Diffstat (limited to 'examples/smc91111_eeprom.c')
-rw-r--r-- | examples/smc91111_eeprom.c | 391 |
1 files changed, 391 insertions, 0 deletions
diff --git a/examples/smc91111_eeprom.c b/examples/smc91111_eeprom.c new file mode 100644 index 0000000..885f933 --- /dev/null +++ b/examples/smc91111_eeprom.c @@ -0,0 +1,391 @@ +/* + * (C) Copyright 2004 + * Robin Getz rgetz@blacfin.uclinux.org + * + * 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 + * + * Heavily borrowed from the following peoples GPL'ed software: + * - Wolfgang Denk, DENX Software Engineering, wd@denx.de + * Das U-boot + * - Ladislav Michl ladis@linux-mips.org + * A rejected patch on the U-Boot mailing list + */ + +#include <common.h> +#include <exports.h> +#include "../drivers/smc91111.h" + +#define SMC_BASE_ADDRESS CONFIG_SMC91111_BASE +#define EEPROM 0x1; +#define MAC 0x2; +#define UNKNOWN 0x4; + +void dump_reg (void); +void dump_eeprom (void); +int write_eeprom_reg (int, int); +void copy_from_eeprom (void); +void print_MAC (void); +int read_eeprom_reg (int); +void print_macaddr (void); + +int smc91111_eeprom (int argc, char *argv[]) +{ + int c, i, j, done, line, reg, value, start, what; + char input[50]; + + /* Print the ABI version */ + app_startup (argv); + if (XF_VERSION != (int) get_version ()) { + printf ("Expects ABI version %d\n", XF_VERSION); + printf ("Actual U-Boot ABI version %d\n", + (int) get_version ()); + printf ("Can't run\n\n"); + return (0); + } + + asm ("p2.h = 0xFFC0;"); + asm ("p2.l = 0x0730;"); + asm ("r0 = 0x01;"); + asm ("w[p2] = r0;"); + asm ("ssync;"); + + asm ("p2.h = 0xffc0;"); + asm ("p2.l = 0x0708;"); + asm ("r0 = 0x01;"); + asm ("w[p2] = r0;"); + asm ("ssync;"); + + if ((SMC_inw (BANK_SELECT) & 0xFF00) != 0x3300) { + printf ("Can't find SMSC91111\n"); + return (0); + } + + done = 0; + what = UNKNOWN; + printf ("\n"); + while (!done) { + /* print the prompt */ + printf ("SMC91111> "); + line = 0; + i = 0; + start = 1; + while (!line) { + /* Wait for a keystroke */ + while (!tstc ()); + + c = getc (); + /* Make Uppercase */ + if (c >= 'Z') + c -= ('a' - 'A'); + /* printf(" |%02x| ",c); */ + + switch (c) { + case '\r': /* Enter */ + case '\n': + input[i] = 0; + puts ("\r\n"); + line = 1; + break; + case '\0': /* nul */ + continue; + + case 0x03: /* ^C - break */ + input[0] = 0; + i = 0; + line = 1; + done = 1; + break; + + case 0x5F: + case 0x08: /* ^H - backspace */ + case 0x7F: /* DEL - backspace */ + if (i > 0) { + puts ("\b \b"); + i--; + } + break; + default: + if (start) { + if ((c == 'W') || (c == 'D') + || (c == 'M') || (c == 'C') + || (c == 'P')) { + putc (c); + input[i] = c; + if (i <= 45) + i++; + start = 0; + } + } else { + if ((c >= '0' && c <= '9') + || (c >= 'A' && c <= 'F') + || (c == 'E') || (c == 'M') + || (c == ' ')) { + putc (c); + input[i] = c; + if (i <= 45) + i++; + break; + } + } + break; + } + } + + for (; i < 49; i++) + input[i] = 0; + + switch (input[0]) { + case ('W'): + /* Line should be w reg value */ + i = 0; + reg = 0; + value = 0; + /* Skip to the next space or end) */ + while ((input[i] != ' ') && (input[i] != 0)) + i++; + + if (input[i] != 0) + i++; + + /* Are we writing to EEPROM or MAC */ + switch (input[i]) { + case ('E'): + what = EEPROM; + break; + case ('M'): + what = MAC; + break; + default: + what = UNKNOWN; + break; + } + + /* skip to the next space or end */ + while ((input[i] != ' ') && (input[i] != 0)) + i++; + if (input[i] != 0) + i++; + + /* Find register to write into */ + j = 0; + while ((input[i] != ' ') && (input[i] != 0)) { + j = input[i] - 0x30; + if (j >= 0xA) { + j -= 0x07; + } + reg = (reg * 0x10) + j; + i++; + } + + while ((input[i] != ' ') && (input[i] != 0)) + i++; + + if (input[i] != 0) + i++; + else + what = UNKNOWN; + + /* Get the value to write */ + j = 0; + while ((input[i] != ' ') && (input[i] != 0)) { + j = input[i] - 0x30; + if (j >= 0xA) { + j -= 0x07; + } + value = (value * 0x10) + j; + i++; + } + + switch (what) { + case 1: + printf ("Writing EEPROM register %02x with %04x\n", + reg, value); + write_eeprom_reg (value, reg); + break; + case 2: + printf ("Writing MAC register bank %i, + reg %02x with %04x\n", reg >> 4, reg & 0xE, value); + SMC_SELECT_BANK (reg >> 4); + SMC_outw (value, reg & 0xE); + break; + default: + printf ("Wrong\n"); + break; + } + break; + case ('D'): + dump_eeprom (); + break; + case ('M'): + dump_reg (); + break; + case ('C'): + copy_from_eeprom (); + break; + case ('P'): + print_macaddr (); + break; + default: + break; + } + + } + + return (0); +} + +void copy_from_eeprom (void) +{ + int i; + + SMC_SELECT_BANK (1); + SMC_outw ((SMC_inw (CTL_REG) & !CTL_EEPROM_SELECT) | CTL_RELOAD, + CTL_REG); + i = 100; + while ((SMC_inw (CTL_REG) & CTL_RELOAD) && --i) + udelay (100); + if (i == 0) { + printf ("Timeout Refreshing EEPROM registers\n"); + } else { + printf ("EEPROM contents copied to MAC\n"); + } + +} + +void print_macaddr (void) +{ + int i, j, k, mac[6]; + + printf ("Current MAC Address in SMSC91111 "); + SMC_SELECT_BANK (1); + for (i = 0; i < 5; i++) { + printf ("%02x:", SMC_inb (ADDR0_REG + i)); + } + + printf ("%02x\n", SMC_inb (ADDR0_REG + 5)); + + i = 0; + for (j = 0x20; j < 0x23; j++) { + k = read_eeprom_reg (j); + mac[i] = k & 0xFF; + i++; + mac[i] = k >> 8; + i++; + } + + printf ("Current MAC Address in EEPROM "); + for (i = 0; i < 5; i++) + printf ("%02x:", mac[i]); + printf ("%02x\n", mac[5]); + +} +void dump_eeprom (void) +{ + int j, k; + + printf ("IOS2-0 "); + for (j = 0; j < 8; j++) { + printf ("%03x ", j); + } + printf ("\n"); + + for (k = 0; k < 4; k++) { + if (k == 0) + printf ("CONFIG "); + if (k == 1) + printf ("BASE "); + if ((k == 2) || (k == 3)) + printf (" "); + for (j = 0; j < 0x20; j += 4) { + printf ("%02x:%04x ", j + k, read_eeprom_reg (j + k)); + } + printf ("\n"); + } + + for (j = 0x20; j < 0x40; j++) { + if ((j & 0x07) == 0) + printf ("\n"); + printf ("%02x:%04x ", j, read_eeprom_reg (j)); + } + printf ("\n"); + +} + +int read_eeprom_reg (int reg) +{ + int timeout; + + SMC_SELECT_BANK (2); + SMC_outw (reg, PTR_REG); + + SMC_SELECT_BANK (1); + SMC_outw (SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_RELOAD, + CTL_REG); + timeout = 100; + while ((SMC_inw (CTL_REG) & CTL_RELOAD) && --timeout) + udelay (100); + if (timeout == 0) { + printf ("Timeout Reading EEPROM register %02x\n", reg); + return 0; + } + + return SMC_inw (GP_REG); + +} + +int write_eeprom_reg (int value, int reg) +{ + int timeout; + + SMC_SELECT_BANK (2); + SMC_outw (reg, PTR_REG); + + SMC_SELECT_BANK (1); + SMC_outw (value, GP_REG); + SMC_outw (SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_STORE, CTL_REG); + timeout = 100; + while ((SMC_inw (CTL_REG) & CTL_STORE) && --timeout) + udelay (100); + if (timeout == 0) { + printf ("Timeout Writing EEPROM register %02x\n", reg); + return 0; + } + + return 1; + +} + +void dump_reg (void) +{ + int i, j; + + printf (" "); + for (j = 0; j < 4; j++) { + printf ("Bank%i ", j); + } + printf ("\n"); + for (i = 0; i < 0xF; i += 2) { + printf ("%02x ", i); + for (j = 0; j < 4; j++) { + SMC_SELECT_BANK (j); + printf ("%04x ", SMC_inw (i)); + } + printf ("\n"); + } +} |