diff options
| -rw-r--r-- | board/lwmon5/lwmon5.c | 27 | ||||
| -rw-r--r-- | include/configs/lwmon5.h | 15 |
2 files changed, 36 insertions, 6 deletions
diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c index 0958194..77f9989 100644 --- a/board/lwmon5/lwmon5.c +++ b/board/lwmon5/lwmon5.c @@ -19,6 +19,7 @@ */ #include <common.h> +#include <command.h> #include <ppc440.h> #include <asm/processor.h> #include <asm/gpio.h> @@ -527,3 +528,29 @@ void hw_watchdog_reset(void) val = gpio_read_out_bit(CFG_GPIO_WATCHDOG) == 0 ? 1 : 0; gpio_write_bit(CFG_GPIO_WATCHDOG, val); } + +int do_eeprom_wp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + if (argc < 2) { + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + if ((strcmp(argv[1], "on") == 0)) { + gpio_write_bit(CFG_GPIO_EEPROM_EXT_WP, 1); + } else if ((strcmp(argv[1], "off") == 0)) { + gpio_write_bit(CFG_GPIO_EEPROM_EXT_WP, 0); + } else { + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + + return 0; +} + +U_BOOT_CMD( + eepromwp, 2, 0, do_eeprom_wp, + "eepromwp- eeprom write protect off/on\n", + "<on|off> - enable (on) or disable (off) I2C EEPROM write protect\n" +); diff --git a/include/configs/lwmon5.h b/include/configs/lwmon5.h index 23b19ba..7b2def3 100644 --- a/include/configs/lwmon5.h +++ b/include/configs/lwmon5.h @@ -161,15 +161,16 @@ *----------------------------------------------------------------------*/ #define CONFIG_HARD_I2C 1 /* I2C with hardware support */ #undef CONFIG_SOFT_I2C /* I2C bit-banged */ -#define CFG_I2C_SPEED 400000 /* I2C speed and slave address */ +#define CFG_I2C_SPEED 100000 /* I2C speed and slave address */ #define CFG_I2C_SLAVE 0x7F -#define CFG_I2C_MULTI_EEPROMS -#define CFG_I2C_EEPROM_ADDR (0xa8>>1) -#define CFG_I2C_EEPROM_ADDR_LEN 1 +#define CFG_I2C_EEPROM_ADDR 0x53 /* EEPROM AT24C128 */ +#define CFG_I2C_EEPROM_ADDR_LEN 2 /* Bytes of address */ +#define CFG_EEPROM_PAGE_WRITE_BITS 6 /* The Atmel AT24C128 has */ + /* 64 byte page write mode using*/ + /* last 6 bits of the address */ +#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10 /* and takes up to 10 msec */ #define CFG_EEPROM_PAGE_WRITE_ENABLE -#define CFG_EEPROM_PAGE_WRITE_BITS 3 -#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10 #define CONFIG_RTC_PCF8563 1 /* enable Philips PCF8563 RTC */ #define CFG_I2C_RTC_ADDR 0x51 /* Philips PCF8563 RTC address */ @@ -397,6 +398,8 @@ #define CFG_GPIO_PHY1_RST 12 #define CFG_GPIO_FLASH_WP 14 #define CFG_GPIO_PHY0_RST 22 +#define CFG_GPIO_EEPROM_EXT_WP 55 +#define CFG_GPIO_EEPROM_INT_WP 57 #define CFG_GPIO_WATCHDOG 58 #define CFG_GPIO_LIME_S 59 #define CFG_GPIO_LIME_RST 60 |