diff options
Diffstat (limited to 'board/esd/pci405')
| -rw-r--r-- | board/esd/pci405/pci405.c | 67 |
1 files changed, 56 insertions, 11 deletions
diff --git a/board/esd/pci405/pci405.c b/board/esd/pci405/pci405.c index cb458eb..d1b6807 100644 --- a/board/esd/pci405/pci405.c +++ b/board/esd/pci405/pci405.c @@ -77,10 +77,10 @@ int board_revision(void) */ cntrl0Reg = mfdcr(cntrl0); mtdcr(cntrl0, cntrl0Reg | 0x03000000); - out32(GPIO0_ODR, in32(GPIO0_ODR) & ~0x00180000); - out32(GPIO0_TCR, in32(GPIO0_TCR) & ~0x00180000); + out32(GPIO0_ODR, in32(GPIO0_ODR) & ~0x00100200); + out32(GPIO0_TCR, in32(GPIO0_TCR) & ~0x00100200); udelay(1000); /* wait some time before reading input */ - value = in32(GPIO0_IR) & 0x00180000; /* get config bits */ + value = in32(GPIO0_IR) & 0x00100200; /* get config bits */ /* * Restore GPIO settings @@ -88,18 +88,18 @@ int board_revision(void) mtdcr(cntrl0, cntrl0Reg); switch (value) { - case 0x00180000: - /* CS2==1 && CS3==1 -> version 1.0 and 1.1 */ + case 0x00100200: + /* CS2==1 && IRQ5==1 -> version 1.0 and 1.1 */ return 1; - case 0x00080000: - /* CS2==0 && CS3==1 -> version 1.2 */ + case 0x00000200: + /* CS2==0 && IRQ5==1 -> version 1.2 */ return 2; + case 0x00000000: + /* CS2==0 && IRQ5==0 -> version 1.3 */ + return 3; #if 0 /* not yet manufactured ! */ case 0x00100000: - /* CS2==1 && CS3==0 -> version 1.3 */ - return 3; - case 0x00000000: - /* CS2==0 && CS3==0 -> version 1.4 */ + /* CS2==1 && IRQ5==0 -> version 1.4 */ return 4; #endif default: @@ -393,3 +393,48 @@ int testdram (void) } /* ------------------------------------------------------------------------- */ +int wpeeprom(int wp) +{ + int wp_state = wp; + volatile unsigned char *uart1_mcr = (volatile unsigned char *)0xef600404; + + if (wp == 1) { + *uart1_mcr &= ~0x02; + } else if (wp == 0) { + *uart1_mcr |= 0x02; + } else { + if (*uart1_mcr & 0x02) { + wp_state = 0; + } else { + wp_state = 1; + } + } + return wp_state; +} + +int do_wpeeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + int wp = -1; + if (argc >= 2) { + if (argv[1][0] == '1') { + wp = 1; + } else if (argv[1][0] == '0') { + wp = 0; + } + } + + wp = wpeeprom(wp); + printf("EEPROM write protection %s\n", wp ? "ENABLED" : "DISABLED"); + return 0; +} + +U_BOOT_CMD( + wpeeprom, 2, 1, do_wpeeprom, + "wpeeprom - Check/Enable/Disable I2C EEPROM write protection\n", + "wpeeprom\n" + " - check I2C EEPROM write protection state\n" + "wpeeprom 1\n" + " - enable I2C EEPROM write protection\n" + "wpeeprom 0\n" + " - disable I2C EEPROM write protection\n" + ); |