1 files changed, 0 insertions, 310 deletions
diff --git a/board/evb64260/i2c.c b/board/evb64260/i2c.c
deleted file mode 100644
index 8119fce..0000000
--- a/board/evb64260/i2c.c
+++ /dev/null
@@ -1,310 +0,0 @@
-#include <common.h>
-#include <mpc8xx.h>
-#include <malloc.h>
-#include <galileo/gt64260R.h>
-#include <galileo/core.h>
-
-#define MAX_I2C_RETRYS	    10
-#define I2C_DELAY	    1000  /* Should be at least the # of MHz of Tclk */
-#undef	DEBUG_I2C
-
-#ifdef DEBUG_I2C
-#define DP(x) x
-#else
-#define DP(x)
-#endif
-
-/* Assuming that there is only one master on the bus (us) */
-
-static void
-i2c_init(int speed, int slaveaddr)
-{
-	unsigned int n, m, freq, margin, power;
-	unsigned int actualn = 0, actualm = 0;
-	unsigned int control, status;
-	unsigned int minmargin = 0xffffffff;
-	unsigned int tclk = 125000000;
-
-	DP(puts("i2c_init\n"));
-
-	for (n = 0 ; n < 8 ; n++) {
-		for (m = 0 ; m < 16 ; m++) {
-			power = 2 << n; /* power = 2^(n+1) */
-			freq = tclk / (10 * (m + 1) * power);
-			if (speed > freq)
-				margin = speed - freq;
-			else
-				margin = freq - speed;
-			if (margin < minmargin) {
-				minmargin   = margin;
-				actualn	    = n;
-				actualm	    = m;
-			}
-		}
-	}
-
-	DP(puts("setup i2c bus\n"));
-
-	/* Setup bus */
-
-	GT_REG_WRITE(I2C_SOFT_RESET, 0);
-
-	DP(puts("udelay...\n"));
-
-	udelay(I2C_DELAY);
-
-	DP(puts("set baudrate\n"));
-
-	GT_REG_WRITE(I2C_STATUS_BAUDE_RATE, (actualm << 3) | actualn);
-	GT_REG_WRITE(I2C_CONTROL, (0x1 << 2) | (0x1 << 6));
-
-	udelay(I2C_DELAY * 10);
-
-	DP(puts("read control, baudrate\n"));
-
-	GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
-	GT_REG_READ(I2C_CONTROL, &control);
-}
-
-static uchar
-i2c_start(void)
-{
-	unsigned int control, status;
-	int count = 0;
-
-	DP(puts("i2c_start\n"));
-
-	/* Set the start bit */
-
-	GT_REG_READ(I2C_CONTROL, &control);
-	control |= (0x1 << 5);
-	GT_REG_WRITE(I2C_CONTROL, control);
-
-	GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
-
-	count = 0;
-	while ((status & 0xff) != 0x08) {
-		udelay(I2C_DELAY);
-		if (count > 20) {
-			GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/
-			return status;
-		}
-		GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
-		count++;
-	}
-
-	return 0;
-}
-
-static uchar
-i2c_select_device(uchar dev_addr, uchar read, int ten_bit)
-{
-	unsigned int status, data, bits = 7;
-	int count = 0;
-
-	DP(puts("i2c_select_device\n"));
-
-	/* Output slave address */
-
-	if (ten_bit)
-		bits = 10;
-
-	data = (dev_addr << 1);
-	/* set the read bit */
-	data |= read;
-	GT_REG_WRITE(I2C_DATA, data);
-	/* assert the address */
-	RESET_REG_BITS(I2C_CONTROL, BIT3);
-
-	udelay(I2C_DELAY);
-
-	GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
-	count = 0;
-	while (((status & 0xff) != 0x40) && ((status & 0xff) != 0x18)) {
-		udelay(I2C_DELAY);
-		if (count > 20) {
-			GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/
-			return status;
-		}
-		GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
-		count++;
-	}
-
-	if (bits == 10) {
-		printf("10 bit I2C addressing not yet implemented\n");
-		return 0xff;
-	}
-
-	return 0;
-}
-
-static uchar
-i2c_get_data(uchar *return_data, int len) {
-
-	unsigned int data, status = 0;
-	int count = 0;
-
-	DP(puts("i2c_get_data\n"));
-
-	while (len) {
-
-		/* Get and return the data */
-
-		RESET_REG_BITS(I2C_CONTROL, (0x1 << 3));
-
-		udelay(I2C_DELAY * 5);
-
-		GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
-		count++;
-		while ((status & 0xff) != 0x50) {
-			udelay(I2C_DELAY);
-			if (count > 2) {
-				GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/
-				return 0;
-			}
-			GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
-			count++;
-		}
-		GT_REG_READ(I2C_DATA, &data);
-		len--;
-		*return_data = (uchar)data;
-		return_data++;
-	}
-	RESET_REG_BITS(I2C_CONTROL, BIT2|BIT3);
-	while ((status & 0xff) != 0x58) {
-		udelay(I2C_DELAY);
-		if (count > 200) {
-			GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/
-			return status;
-		}
-		GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
-		count++;
-	}
-	GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /* stop */
-
-	return 0;
-}
-
-static uchar
-i2c_write_data(unsigned int data, int len)
-{
-	unsigned int status;
-	int count = 0;
-
-	DP(puts("i2c_write_data\n"));
-
-	if (len > 4)
-		return -1;
-
-	while (len) {
-		/* Set and assert the data */
-
-		GT_REG_WRITE(I2C_DATA, (unsigned int)data);
-		RESET_REG_BITS(I2C_CONTROL, (0x1 << 3));
-
-		udelay(I2C_DELAY);
-
-		GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
-		count++;
-		while ((status & 0xff) != 0x28) {
-			udelay(I2C_DELAY);
-			if (count > 20) {
-				GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/
-				return status;
-			}
-			GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
-			count++;
-		}
-		len--;
-	}
-	GT_REG_WRITE(I2C_CONTROL, (0x1 << 3) | (0x1 << 4));
-	GT_REG_WRITE(I2C_CONTROL, (0x1 << 4));
-
-	udelay(I2C_DELAY * 10);
-
-	return 0;
-}
-
-static uchar
-i2c_set_dev_offset(uchar dev_addr, unsigned int offset, int ten_bit)
-{
-	uchar status;
-
-	DP(puts("i2c_set_dev_offset\n"));
-
-	status = i2c_select_device(dev_addr, 0, ten_bit);
-	if (status) {
-#ifdef DEBUG_I2C
-		printf("Failed to select device setting offset: 0x%02x\n",
-		       status);
-#endif
-		return status;
-	}
-
-	status = i2c_write_data(offset, 1);
-	if (status) {
-#ifdef DEBUG_I2C
-		printf("Failed to write data: 0x%02x\n", status);
-#endif
-		return status;
-	}
-
-	return 0;
-}
-
-uchar
-i2c_read(uchar dev_addr, unsigned int offset, int len, uchar *data,
-	 int ten_bit)
-{
-	uchar status = 0;
-	unsigned int i2cfreq = 400000;
-
-	DP(puts("i2c_read\n"));
-
-	i2c_init(i2cfreq, 0);
-
-	status = i2c_start();
-
-	if (status) {
-#ifdef DEBUG_I2C
-		printf("Transaction start failed: 0x%02x\n", status);
-#endif
-		return status;
-	}
-
-	status = i2c_set_dev_offset(dev_addr, 0, 0);
-	if (status) {
-#ifdef DEBUG_I2C
-		printf("Failed to set offset: 0x%02x\n", status);
-#endif
-		return status;
-	}
-
-	i2c_init(i2cfreq, 0);
-
-	status = i2c_start();
-	if (status) {
-#ifdef DEBUG_I2C
-		printf("Transaction restart failed: 0x%02x\n", status);
-#endif
-		return status;
-	}
-
-	status = i2c_select_device(dev_addr, 1, ten_bit);
-	if (status) {
-#ifdef DEBUG_I2C
-		printf("Address not acknowledged: 0x%02x\n", status);
-#endif
-		return status;
-	}
-
-	status = i2c_get_data(data, len);
-	if (status) {
-#ifdef DEBUG_I2C
-		printf("Data not received: 0x%02x\n", status);
-#endif
-		return status;
-	}
-
-	return 0;
-}