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board/evb64260/i2c.c: Coding Style cleanup 

Make checkpatch-clean

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Eran Man <eran@nbase.co.il>
utp
Wolfgang Denk 2011-11-09 09:28:55 +00:00
parent 878d6b48f9
commit fecf63e41e
1 changed files with 22 additions and 26 deletions
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48
board/evb64260/i2c.c
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@ -20,25 +20,22 @@ static void
i2c_init(int speed, int slaveaddr) i2c_init(int speed, int slaveaddr)
{ {
unsigned int n, m, freq, margin, power; unsigned int n, m, freq, margin, power;
unsigned int actualFreq, actualN=0, actualM=0; unsigned int actualFreq, actualN = 0, actualM = 0;
unsigned int control, status; unsigned int control, status;
unsigned int minMargin = 0xffffffff; unsigned int minMargin = 0xffffffff;
unsigned int tclk = 125000000; unsigned int tclk = 125000000;
DP(puts("i2c_init\n")); DP(puts("i2c_init\n"));
for(n = 0 ; n < 8 ; n++) for (n = 0 ; n < 8 ; n++) {
{ for (m = 0 ; m < 16 ; m++) {
for(m = 0 ; m < 16 ; m++)
{
power = 2<<n; /* power = 2^(n+1) */ power = 2<<n; /* power = 2^(n+1) */
freq = tclk/(10*(m+1)*power); freq = tclk/(10*(m+1)*power);
if (speed > freq) if (speed > freq)
margin = speed - freq; margin = speed - freq;
else else
margin = freq - speed; margin = freq - speed;
if(margin < minMargin) if (margin < minMargin) {
{
minMargin = margin; minMargin = margin;
actualFreq = freq; actualFreq = freq;
actualN = n; actualN = n;
@ -91,13 +88,13 @@ i2c_start(void)
udelay(I2C_DELAY); udelay(I2C_DELAY);
if (count > 20) { if (count > 20) {
GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/ GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/
return (status); return status;
} }
GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status); GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
count++; count++;
} }
return (0); return 0;
} }
static uchar static uchar
@ -110,9 +107,8 @@ i2c_select_device(uchar dev_addr, uchar read, int ten_bit)
/* Output slave address */ /* Output slave address */
if (ten_bit) { if (ten_bit)
bits = 10; bits = 10;
}
data = (dev_addr << 1); data = (dev_addr << 1);
/* set the read bit */ /* set the read bit */
@ -129,7 +125,7 @@ i2c_select_device(uchar dev_addr, uchar read, int ten_bit)
udelay(I2C_DELAY); udelay(I2C_DELAY);
if (count > 20) { if (count > 20) {
GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/ GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/
return(status); return status;
} }
GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status); GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
count++; count++;
@ -137,14 +133,14 @@ i2c_select_device(uchar dev_addr, uchar read, int ten_bit)
if (bits == 10) { if (bits == 10) {
printf("10 bit I2C addressing not yet implemented\n"); printf("10 bit I2C addressing not yet implemented\n");
return (0xff); return 0xff;
} }
return (0); return 0;
} }
static uchar static uchar
i2c_get_data(uchar* return_data, int len) { i2c_get_data(uchar *return_data, int len) {
unsigned int data, status = 0; unsigned int data, status = 0;
int count = 0; int count = 0;
@ -163,7 +159,7 @@ i2c_get_data(uchar* return_data, int len) {
count++; count++;
while ((status & 0xff) != 0x50) { while ((status & 0xff) != 0x50) {
udelay(I2C_DELAY); udelay(I2C_DELAY);
if(count > 2) { if (count > 2) {
GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/ GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/
return 0; return 0;
} }
@ -178,16 +174,16 @@ i2c_get_data(uchar* return_data, int len) {
RESET_REG_BITS(I2C_CONTROL, BIT2|BIT3); RESET_REG_BITS(I2C_CONTROL, BIT2|BIT3);
while ((status & 0xff) != 0x58) { while ((status & 0xff) != 0x58) {
udelay(I2C_DELAY); udelay(I2C_DELAY);
if(count > 200) { if (count > 200) {
GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/ GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/
return (status); return status;
} }
GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status); GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
count++; count++;
} }
GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /* stop */ GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /* stop */
return (0); return 0;
} }
static uchar static uchar
@ -213,9 +209,9 @@ i2c_write_data(unsigned int data, int len)
count++; count++;
while ((status & 0xff) != 0x28) { while ((status & 0xff) != 0x28) {
udelay(I2C_DELAY); udelay(I2C_DELAY);
if(count > 20) { if (count > 20) {
GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/ GT_REG_WRITE(I2C_CONTROL, (0x1 << 4)); /*stop*/
return (status); return status;
} }
GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status); GT_REG_READ(I2C_STATUS_BAUDE_RATE, &status);
count++; count++;
@ -227,7 +223,7 @@ i2c_write_data(unsigned int data, int len)
udelay(I2C_DELAY * 10); udelay(I2C_DELAY * 10);
return (0); return 0;
} }
static uchar static uchar
@ -254,11 +250,11 @@ i2c_set_dev_offset(uchar dev_addr, unsigned int offset, int ten_bit)
return status; return status;
} }
return (0); return 0;
} }
uchar uchar
i2c_read(uchar dev_addr, unsigned int offset, int len, uchar* data, i2c_read(uchar dev_addr, unsigned int offset, int len, uchar *data,
int ten_bit) int ten_bit)
{ {
uchar status = 0; uchar status = 0;
@ -266,7 +262,7 @@ i2c_read(uchar dev_addr, unsigned int offset, int len, uchar* data,
DP(puts("i2c_read\n")); DP(puts("i2c_read\n"));
i2c_init(i2cFreq,0); i2c_init(i2cFreq, 0);
status = i2c_start(); status = i2c_start();
@ -285,7 +281,7 @@ i2c_read(uchar dev_addr, unsigned int offset, int len, uchar* data,
return status; return status;
} }
i2c_init(i2cFreq,0); i2c_init(i2cFreq, 0);
status = i2c_start(); status = i2c_start();
if (status) { if (status) {