mirror of
https://github.com/u-boot/u-boot.git
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- Fix issues related to the use of ELDK 4 when compiling for MarelV38B:
* remove warnings when compiling ethaddr.c
* adjust linker script (fixes a crash resulting from incorrect
definition of __u_boot_cmd_start)
- Some MarelV38B code cleanup.
This commit is contained in:
Bartlomiej Sieka
parent
dae80f3caf
commit
ffa150bc90
@ -1,5 +1,4 @@
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/*
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*
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* (C) Copyright 2006
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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@ -25,48 +24,13 @@
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#include <common.h>
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#include <mpc5xxx.h>
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#define GPIO_ENABLE (MPC5XXX_WU_GPIO)
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/* Open Drain Emulation Register */
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#define GPIO_ODR (MPC5XXX_WU_GPIO + 0x04)
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/* Data Direction Register */
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#define GPIO_DDR (MPC5XXX_WU_GPIO + 0x08)
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/* Data Value Out Register */
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#define GPIO_DVOR (MPC5XXX_WU_GPIO + 0x0C)
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/* Interrupt Enable Register */
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#define GPIO_IER (MPC5XXX_WU_GPIO + 0x10)
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/* Individual Interrupt Enable Register */
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#define GPIO_IIER (MPC5XXX_WU_GPIO + 0x14)
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/* Interrupt Type Register */
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#define GPIO_ITR (MPC5XXX_WU_GPIO + 0x18)
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/* Master Enable Register */
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#define GPIO_MER (MPC5XXX_WU_GPIO + 0x1C)
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/* Data Input Value Register */
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#define GPIO_DIVR (MPC5XXX_WU_GPIO + 0x20)
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/* Status Register */
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#define GPIO_SR (MPC5XXX_WU_GPIO + 0x24)
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#define PSC6_0 0x10000000
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#define WKUP_7 0x80000000
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/* For NS4 A/B board define WKUP_7, for V38B board PSC_6 */
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#define GPIO_PIN PSC6_0
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/* For the V38B board the pin is GPIO_PSC_6 */
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#define GPIO_PIN GPIO_PSC6_0
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#define NO_ERROR 0
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#define ERR_NO_NUMBER 1
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#define ERR_BAD_NUMBER 2
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typedef volatile unsigned long GPIO_REG;
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typedef GPIO_REG *GPIO_REG_PTR;
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static int is_high(void);
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static int check_device(void);
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static void io_out(int value);
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@ -79,33 +43,34 @@ static void write_byte(unsigned char command);
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void read_2501_memory(unsigned char *psernum, unsigned char *perr);
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void board_get_enetaddr(uchar *enetaddr);
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static int is_high()
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{
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return (* ((vu_long *) GPIO_DIVR) & GPIO_PIN);
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return (*((vu_long *) MPC5XXX_WU_GPIO_DATA_I) & GPIO_PIN);
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}
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static void io_out(int value)
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{
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if (value)
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*((vu_long *) GPIO_DVOR) |= GPIO_PIN;
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*((vu_long *) MPC5XXX_WU_GPIO_DATA_O) |= GPIO_PIN;
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else
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*((vu_long *) GPIO_DVOR) &= ~GPIO_PIN;
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*((vu_long *) MPC5XXX_WU_GPIO_DATA_O) &= ~GPIO_PIN;
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}
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static void io_input()
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{
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*((vu_long *) GPIO_DDR) &= ~GPIO_PIN;
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*((vu_long *) MPC5XXX_WU_GPIO_DIR) &= ~GPIO_PIN;
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udelay(3); /* allow input to settle */
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}
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static void io_output()
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{
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*((vu_long *) GPIO_DDR) |= GPIO_PIN;
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*((vu_long *) MPC5XXX_WU_GPIO_DIR) |= GPIO_PIN;
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}
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static void init_gpio()
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{
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*((vu_long *) GPIO_ENABLE) |= GPIO_PIN; /* Enable appropriate pin */
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*((vu_long *) MPC5XXX_WU_GPIO_ENABLE) |= GPIO_PIN; /* Enable appropriate pin */
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}
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void read_2501_memory(unsigned char *psernum, unsigned char *perr)
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@ -117,8 +82,8 @@ void read_2501_memory(unsigned char *psernum, unsigned char *perr)
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*perr = 0;
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crcval = 0;
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for (i=0; i<NBYTES; i++)
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for (i = 0; i < NBYTES; i++)
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buf[i] = 0;
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if (!check_device())
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*perr = ERR_NO_NUMBER;
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@ -130,10 +95,10 @@ void read_2501_memory(unsigned char *psernum, unsigned char *perr)
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write_byte(0x00);
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read_byte(&crcval); /* Read CRC of address and command */
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for (i=0; i<NBYTES; i++)
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read_byte( &buf[i] );
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for (i = 0; i < NBYTES; i++)
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read_byte(&buf[i]);
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}
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if (strncmp((const char*) &buf[11], "MAREL IEEE 802.3", 16)) {
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if (strncmp((const char *) &buf[11], "MAREL IEEE 802.3", 16)) {
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*perr = ERR_BAD_NUMBER;
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psernum[0] = 0x00;
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psernum[1] = 0xE0;
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@ -141,8 +106,7 @@ void read_2501_memory(unsigned char *psernum, unsigned char *perr)
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psernum[3] = 0xFF;
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psernum[4] = 0xFF;
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psernum[5] = 0xFF;
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}
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else {
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} else {
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psernum[0] = 0x00;
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psernum[1] = 0xE0;
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psernum[2] = 0xEE;
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@ -173,27 +137,23 @@ static void write_byte(unsigned char command)
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{
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char i;
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for (i=0; i<8; i++) {
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for (i = 0; i < 8; i++) {
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/* 1 us to 15 us low pulse starts bit slot */
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/* Start with high pulse for 3 us */
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io_input();
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udelay(3);
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io_out(0);
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io_output();
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udelay(3);
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if (command & 0x01) {
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/* 60 us high for 1-bit */
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io_input();
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udelay(60);
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}
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else {
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} else
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/* 60 us low for 0-bit */
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udelay(60);
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}
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/* Leave pin as input */
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io_input();
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@ -201,11 +161,11 @@ static void write_byte(unsigned char command)
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}
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}
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static void read_byte(unsigned char *data)
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static void read_byte(unsigned char *data)
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{
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unsigned char i, rdat = 0;
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for (i=0; i<8; i++) {
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for (i = 0; i < 8; i++) {
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/* read one bit from one-wire device */
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/* 1 - 15 us low starts bit slot */
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@ -233,22 +193,21 @@ static void read_byte(unsigned char *data)
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void board_get_enetaddr(uchar *enetaddr)
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{
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unsigned char sn[6], err=NO_ERROR;
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unsigned char sn[6], err = NO_ERROR;
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init_gpio();
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read_2501_memory(sn, &err);
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if (err == NO_ERROR) {
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sprintf(enetaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
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sprintf((char *)enetaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
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sn[0], sn[1], sn[2], sn[3], sn[4], sn[5]);
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printf("MAC address: %s\n", enetaddr);
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setenv("ethaddr", enetaddr);
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}
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else {
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sprintf(enetaddr, "00:01:02:03:04:05");
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setenv("ethaddr", (char *)enetaddr);
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} else {
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sprintf((char *)enetaddr, "00:01:02:03:04:05");
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printf("Error reading MAC address.\n");
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printf("Setting default to %s\n", enetaddr);
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setenv("ethaddr", enetaddr);
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setenv("ethaddr", (char *)enetaddr);
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}
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}
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@ -61,6 +61,7 @@ SECTIONS
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*(.rodata)
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*(.rodata1)
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*(.rodata.str1.4)
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*(.eh_frame)
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}
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.fini : { *(.fini) } =0
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.ctors : { *(.ctors) }
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@ -93,11 +94,13 @@ SECTIONS
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_edata = .;
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PROVIDE (edata = .);
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. = .;
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__u_boot_cmd_start = .;
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.u_boot_cmd : { *(.u_boot_cmd) }
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__u_boot_cmd_end = .;
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. = .;
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__start___ex_table = .;
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__ex_table : { *(__ex_table) }
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__stop___ex_table = .;
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