diff options
Diffstat (limited to 'board/v38b/ethaddr.c')
| -rw-r--r-- | board/v38b/ethaddr.c | 91 |
1 files changed, 25 insertions, 66 deletions
diff --git a/board/v38b/ethaddr.c b/board/v38b/ethaddr.c index aaa629e..4e2494e 100644 --- a/board/v38b/ethaddr.c +++ b/board/v38b/ethaddr.c @@ -1,5 +1,4 @@ /* - * * (C) Copyright 2006 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * @@ -25,48 +24,13 @@ #include <common.h> #include <mpc5xxx.h> -#define GPIO_ENABLE (MPC5XXX_WU_GPIO) - -/* Open Drain Emulation Register */ -#define GPIO_ODR (MPC5XXX_WU_GPIO + 0x04) - -/* Data Direction Register */ -#define GPIO_DDR (MPC5XXX_WU_GPIO + 0x08) - -/* Data Value Out Register */ -#define GPIO_DVOR (MPC5XXX_WU_GPIO + 0x0C) - -/* Interrupt Enable Register */ -#define GPIO_IER (MPC5XXX_WU_GPIO + 0x10) - -/* Individual Interrupt Enable Register */ -#define GPIO_IIER (MPC5XXX_WU_GPIO + 0x14) - -/* Interrupt Type Register */ -#define GPIO_ITR (MPC5XXX_WU_GPIO + 0x18) - -/* Master Enable Register */ -#define GPIO_MER (MPC5XXX_WU_GPIO + 0x1C) - -/* Data Input Value Register */ -#define GPIO_DIVR (MPC5XXX_WU_GPIO + 0x20) - -/* Status Register */ -#define GPIO_SR (MPC5XXX_WU_GPIO + 0x24) - -#define PSC6_0 0x10000000 -#define WKUP_7 0x80000000 - -/* For NS4 A/B board define WKUP_7, for V38B board PSC_6 */ -#define GPIO_PIN PSC6_0 +/* For the V38B board the pin is GPIO_PSC_6 */ +#define GPIO_PIN GPIO_PSC6_0 #define NO_ERROR 0 #define ERR_NO_NUMBER 1 #define ERR_BAD_NUMBER 2 -typedef volatile unsigned long GPIO_REG; -typedef GPIO_REG *GPIO_REG_PTR; - static int is_high(void); static int check_device(void); static void io_out(int value); @@ -79,33 +43,34 @@ static void write_byte(unsigned char command); void read_2501_memory(unsigned char *psernum, unsigned char *perr); void board_get_enetaddr(uchar *enetaddr); + static int is_high() { - return (* ((vu_long *) GPIO_DIVR) & GPIO_PIN); + return (*((vu_long *) MPC5XXX_WU_GPIO_DATA_I) & GPIO_PIN); } static void io_out(int value) { if (value) - *((vu_long *) GPIO_DVOR) |= GPIO_PIN; + *((vu_long *) MPC5XXX_WU_GPIO_DATA_O) |= GPIO_PIN; else - *((vu_long *) GPIO_DVOR) &= ~GPIO_PIN; + *((vu_long *) MPC5XXX_WU_GPIO_DATA_O) &= ~GPIO_PIN; } static void io_input() { - *((vu_long *) GPIO_DDR) &= ~GPIO_PIN; + *((vu_long *) MPC5XXX_WU_GPIO_DIR) &= ~GPIO_PIN; udelay(3); /* allow input to settle */ } static void io_output() { - *((vu_long *) GPIO_DDR) |= GPIO_PIN; + *((vu_long *) MPC5XXX_WU_GPIO_DIR) |= GPIO_PIN; } static void init_gpio() { - *((vu_long *) GPIO_ENABLE) |= GPIO_PIN; /* Enable appropriate pin */ + *((vu_long *) MPC5XXX_WU_GPIO_ENABLE) |= GPIO_PIN; /* Enable appropriate pin */ } void read_2501_memory(unsigned char *psernum, unsigned char *perr) @@ -117,8 +82,8 @@ void read_2501_memory(unsigned char *psernum, unsigned char *perr) *perr = 0; crcval = 0; - for (i=0; i<NBYTES; i++) - + for (i = 0; i < NBYTES; i++) + buf[i] = 0; if (!check_device()) *perr = ERR_NO_NUMBER; @@ -130,10 +95,10 @@ void read_2501_memory(unsigned char *psernum, unsigned char *perr) write_byte(0x00); read_byte(&crcval); /* Read CRC of address and command */ - for (i=0; i<NBYTES; i++) - read_byte( &buf[i] ); + for (i = 0; i < NBYTES; i++) + read_byte(&buf[i]); } - if (strncmp((const char*) &buf[11], "MAREL IEEE 802.3", 16)) { + if (strncmp((const char *) &buf[11], "MAREL IEEE 802.3", 16)) { *perr = ERR_BAD_NUMBER; psernum[0] = 0x00; psernum[1] = 0xE0; @@ -141,8 +106,7 @@ void read_2501_memory(unsigned char *psernum, unsigned char *perr) psernum[3] = 0xFF; psernum[4] = 0xFF; psernum[5] = 0xFF; - } - else { + } else { psernum[0] = 0x00; psernum[1] = 0xE0; psernum[2] = 0xEE; @@ -173,27 +137,23 @@ static void write_byte(unsigned char command) { char i; - for (i=0; i<8; i++) { + for (i = 0; i < 8; i++) { /* 1 us to 15 us low pulse starts bit slot */ /* Start with high pulse for 3 us */ io_input(); - udelay(3); io_out(0); io_output(); - udelay(3); if (command & 0x01) { /* 60 us high for 1-bit */ io_input(); udelay(60); - } - else { + } else /* 60 us low for 0-bit */ udelay(60); - } /* Leave pin as input */ io_input(); @@ -201,11 +161,11 @@ static void write_byte(unsigned char command) } } -static void read_byte(unsigned char *data) +static void read_byte(unsigned char *data) { unsigned char i, rdat = 0; - for (i=0; i<8; i++) { + for (i = 0; i < 8; i++) { /* read one bit from one-wire device */ /* 1 - 15 us low starts bit slot */ @@ -233,22 +193,21 @@ static void read_byte(unsigned char *data) void board_get_enetaddr(uchar *enetaddr) { - unsigned char sn[6], err=NO_ERROR; + unsigned char sn[6], err = NO_ERROR; init_gpio(); read_2501_memory(sn, &err); if (err == NO_ERROR) { - sprintf(enetaddr, "%02x:%02x:%02x:%02x:%02x:%02x", + sprintf((char *)enetaddr, "%02x:%02x:%02x:%02x:%02x:%02x", sn[0], sn[1], sn[2], sn[3], sn[4], sn[5]); printf("MAC address: %s\n", enetaddr); - setenv("ethaddr", enetaddr); - } - else { - sprintf(enetaddr, "00:01:02:03:04:05"); + setenv("ethaddr", (char *)enetaddr); + } else { + sprintf((char *)enetaddr, "00:01:02:03:04:05"); printf("Error reading MAC address.\n"); printf("Setting default to %s\n", enetaddr); - setenv("ethaddr", enetaddr); + setenv("ethaddr", (char *)enetaddr); } } |