[U-Boot] [PATCH 3/3 v2] blackfin: convert to use CONFIG_SYS_I2C framework
Scott Jiang
scott.jiang.linux at gmail.com
Thu Nov 13 08:30:55 CET 2014
Signed-off-by: Scott Jiang <scott.jiang.linux at gmail.com>
---
drivers/i2c/adi_i2c.c | 202 +++++++++++------------------------
include/configs/bct-brettl2.h | 2 +-
include/configs/bf518f-ezbrd.h | 2 +-
include/configs/bf526-ezbrd.h | 2 +-
include/configs/bf527-ad7160-eval.h | 2 +-
include/configs/bf527-ezkit.h | 2 +-
include/configs/bf527-sdp.h | 2 +-
include/configs/bf537-minotaur.h | 2 +-
include/configs/bf537-pnav.h | 2 +-
include/configs/bf537-srv1.h | 2 +-
include/configs/bf537-stamp.h | 2 +-
include/configs/bf538f-ezkit.h | 2 +-
include/configs/bf548-ezkit.h | 2 +-
include/configs/bf609-ezkit.h | 2 +-
include/configs/bfin_adi_common.h | 4 +-
include/configs/br4.h | 2 +-
include/configs/cm-bf527.h | 2 +-
include/configs/cm-bf537e.h | 2 +-
include/configs/cm-bf537u.h | 2 +-
include/configs/cm-bf548.h | 2 +-
include/configs/pr1.h | 2 +-
include/configs/tcm-bf518.h | 2 +-
include/configs/tcm-bf537.h | 2 +-
23 files changed, 83 insertions(+), 165 deletions(-)
diff --git a/drivers/i2c/adi_i2c.c b/drivers/i2c/adi_i2c.c
index 71077c5..20495b1 100644
--- a/drivers/i2c/adi_i2c.c
+++ b/drivers/i2c/adi_i2c.c
@@ -13,6 +13,8 @@
#include <asm/twi.h>
#include <asm/io.h>
+static struct twi_regs *i2c_get_base(struct i2c_adapter *adap);
+
/* Every register is 32bit aligned, but only 16bits in size */
#define ureg(name) u16 name; u16 __pad_##name;
struct twi_regs {
@@ -36,25 +38,12 @@ struct twi_regs {
};
#undef ureg
-/* U-Boot I2C framework allows only one active device at a time. */
#ifdef TWI_CLKDIV
#define TWI0_CLKDIV TWI_CLKDIV
-#endif
-static struct twi_regs *twi = (void *)TWI0_CLKDIV;
-
-#ifdef DEBUG
-# define dmemset(s, c, n) memset(s, c, n)
-#else
-# define dmemset(s, c, n)
-#endif
-#define debugi(fmt, args...) \
- debug( \
- "MSTAT:0x%03x FSTAT:0x%x ISTAT:0x%02x\t%-20s:%-3i: " fmt "\n", \
- twi->master_stat, twi->fifo_stat, twi->int_stat, \
- __func__, __LINE__, ## args)
-
-#ifdef CONFIG_TWICLK_KHZ
-# error do not define CONFIG_TWICLK_KHZ ... use CONFIG_SYS_I2C_SPEED
+# ifdef CONFIG_SYS_MAX_I2C_BUS
+# undef CONFIG_SYS_MAX_I2C_BUS
+# endif
+#define CONFIG_SYS_MAX_I2C_BUS 1
#endif
/*
@@ -70,7 +59,7 @@ static struct twi_regs *twi = (void *)TWI0_CLKDIV;
#define SYS_I2C_DUTY I2C_SPEED_TO_DUTY(CONFIG_SYS_I2C_SPEED)
/* Note: duty is inverse of speed, so the comparisons below are correct */
#if SYS_I2C_DUTY < I2C_DUTY_MAX || SYS_I2C_DUTY > I2C_DUTY_MIN
-# error "The Blackfin I2C hardware can only operate 20KHz - 400KHz"
+# error "The I2C hardware can only operate 20KHz - 400KHz"
#endif
/* All transfers are described by this data structure */
@@ -92,7 +81,7 @@ struct i2c_msg {
* wait_for_completion - manage the actual i2c transfer
* @msg: the i2c msg
*/
-static int wait_for_completion(struct i2c_msg *msg)
+static int wait_for_completion(struct twi_regs *twi, struct i2c_msg *msg)
{
u16 int_stat, ctl;
ulong timebase = get_timer(0);
@@ -101,7 +90,6 @@ static int wait_for_completion(struct i2c_msg *msg)
int_stat = readw(&twi->int_stat);
if (int_stat & XMTSERV) {
- debugi("processing XMTSERV");
writew(XMTSERV, &twi->int_stat);
if (msg->alen) {
writew(*(msg->abuf++), &twi->xmt_data8);
@@ -119,7 +107,6 @@ static int wait_for_completion(struct i2c_msg *msg)
}
}
if (int_stat & RCVSERV) {
- debugi("processing RCVSERV");
writew(RCVSERV, &twi->int_stat);
if (msg->len) {
*(msg->buf++) = readw(&twi->rcv_data8);
@@ -130,12 +117,10 @@ static int wait_for_completion(struct i2c_msg *msg)
}
}
if (int_stat & MERR) {
- debugi("processing MERR");
writew(MERR, &twi->int_stat);
return msg->len;
}
if (int_stat & MCOMP) {
- debugi("processing MCOMP");
writew(MCOMP, &twi->int_stat);
if (msg->flags & I2C_M_COMBO && msg->len) {
ctl = readw(&twi->master_ctl);
@@ -155,16 +140,10 @@ static int wait_for_completion(struct i2c_msg *msg)
return msg->len;
}
-/**
- * i2c_transfer - setup an i2c transfer
- * @return: 0 if things worked, non-0 if things failed
- *
- * Here we just get the i2c stuff all prepped and ready, and then tail off
- * into wait_for_completion() for all the bits to go.
- */
-static int i2c_transfer(uchar chip, uint addr, int alen, uchar *buffer,
- int len, u8 flags)
+static int i2c_transfer(struct i2c_adapter *adap, uint8_t chip, uint addr,
+ int alen, uint8_t *buffer, int len, uint8_t flags)
{
+ struct twi_regs *twi = i2c_get_base(adap);
int ret;
u16 ctl;
uchar addr_buffer[] = {
@@ -180,12 +159,6 @@ static int i2c_transfer(uchar chip, uint addr, int alen, uchar *buffer,
.alen = alen,
};
- dmemset(buffer, 0xff, len);
- debugi("chip=0x%x addr=0x%02x alen=%i buf[0]=0x%02x len=%i ",
- chip, addr, alen, buffer[0], len);
- debugi("flags=0x%02x[%s] ", flags,
- (flags & I2C_M_READ ? "rd" : "wr"));
-
/* wait for things to settle */
while (readw(&twi->master_stat) & BUSBUSY)
if (ctrlc())
@@ -201,11 +174,9 @@ static int i2c_transfer(uchar chip, uint addr, int alen, uchar *buffer,
/* prime the pump */
if (msg.alen) {
len = (msg.flags & I2C_M_COMBO) ? msg.alen : msg.alen + len;
- debugi("first byte=0x%02x", *msg.abuf);
writew(*(msg.abuf++), &twi->xmt_data8);
--msg.alen;
} else if (!(msg.flags & I2C_M_READ) && msg.len) {
- debugi("first byte=0x%02x", *msg.buf);
writew(*(msg.buf++), &twi->xmt_data8);
--msg.len;
}
@@ -222,8 +193,7 @@ static int i2c_transfer(uchar chip, uint addr, int alen, uchar *buffer,
writew(ctl, &twi->master_ctl);
/* process the rest */
- ret = wait_for_completion(&msg);
- debugi("ret=%d", ret);
+ ret = wait_for_completion(twi, &msg);
if (ret) {
ctl = readw(&twi->master_ctl) & ~MEN;
@@ -237,12 +207,9 @@ static int i2c_transfer(uchar chip, uint addr, int alen, uchar *buffer,
return ret;
}
-/**
- * i2c_set_bus_speed - set i2c bus speed
- * @speed: bus speed (in HZ)
- */
-int i2c_set_bus_speed(unsigned int speed)
+static uint adi_i2c_setspeed(struct i2c_adapter *adap, uint speed)
{
+ struct twi_regs *twi = i2c_get_base(adap);
u16 clkdiv = I2C_SPEED_TO_DUTY(speed);
/* Set TWI interface clock */
@@ -257,28 +224,10 @@ int i2c_set_bus_speed(unsigned int speed)
return 0;
}
-/**
- * i2c_get_bus_speed - get i2c bus speed
- * @speed: bus speed (in HZ)
- */
-unsigned int i2c_get_bus_speed(void)
-{
- u16 clkdiv = readw(&twi->clkdiv) & 0xff;
- /* 10 MHz / (2 * CLKDIV) -> 5 MHz / CLKDIV */
- return 5000000 / clkdiv;
-}
-
-/**
- * i2c_init - initialize the i2c bus
- * @speed: bus speed (in HZ)
- * @slaveaddr: address of device in slave mode (0 - not slave)
- *
- * Slave mode isn't actually implemented. It'll stay that way until
- * we get a real request for it.
- */
-void i2c_init(int speed, int slaveaddr)
+static void adi_i2c_init(struct i2c_adapter *adap, int speed, int slaveaddr)
{
- uint8_t prescale = ((get_i2c_clk() / 1000 / 1000 + 5) / 10) & 0x7F;
+ struct twi_regs *twi = i2c_get_base(adap);
+ u16 prescale = ((get_i2c_clk() / 1000 / 1000 + 5) / 10) & 0x7F;
/* Set TWI internal clock as 10MHz */
writew(prescale, &twi->control);
@@ -288,100 +237,69 @@ void i2c_init(int speed, int slaveaddr)
/* Enable it */
writew(TWI_ENA | prescale, &twi->control);
-
- debugi("CONTROL:0x%04x CLKDIV:0x%04x", readw(&twi->control),
- readw(&twi->clkdiv));
-
-#if CONFIG_SYS_I2C_SLAVE
-# error I2C slave support not tested/supported
-#endif
}
-/**
- * i2c_probe - test if a chip exists at a given i2c address
- * @chip: i2c chip addr to search for
- * @return: 0 if found, non-0 if not found
- */
-int i2c_probe(uchar chip)
+static int adi_i2c_read(struct i2c_adapter *adap, uint8_t chip,
+ uint addr, int alen, uint8_t *buffer, int len)
{
- u8 byte;
- return i2c_read(chip, 0, 0, &byte, 1);
+ return i2c_transfer(adap, chip, addr, alen, buffer,
+ len, alen ? I2C_M_COMBO : I2C_M_READ);
}
-/**
- * i2c_read - read data from an i2c device
- * @chip: i2c chip addr
- * @addr: memory (register) address in the chip
- * @alen: byte size of address
- * @buffer: buffer to store data read from chip
- * @len: how many bytes to read
- * @return: 0 on success, non-0 on failure
- */
-int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len)
+static int adi_i2c_write(struct i2c_adapter *adap, uint8_t chip,
+ uint addr, int alen, uint8_t *buffer, int len)
{
- return i2c_transfer(chip, addr, alen, buffer,
- len, (alen ? I2C_M_COMBO : I2C_M_READ));
+ return i2c_transfer(adap, chip, addr, alen, buffer, len, 0);
}
-/**
- * i2c_write - write data to an i2c device
- * @chip: i2c chip addr
- * @addr: memory (register) address in the chip
- * @alen: byte size of address
- * @buffer: buffer holding data to write to chip
- * @len: how many bytes to write
- * @return: 0 on success, non-0 on failure
- */
-int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len)
+static int adi_i2c_probe(struct i2c_adapter *adap, uint8_t chip)
{
- return i2c_transfer(chip, addr, alen, buffer, len, 0);
+ u8 byte;
+ return adi_i2c_read(adap, chip, 0, 0, &byte, 1);
}
-/**
- * i2c_set_bus_num - change active I2C bus
- * @bus: bus index, zero based
- * @returns: 0 on success, non-0 on failure
- */
-int i2c_set_bus_num(unsigned int bus)
+static struct twi_regs *i2c_get_base(struct i2c_adapter *adap)
{
- switch (bus) {
-#if CONFIG_SYS_MAX_I2C_BUS > 0
- case 0:
- twi = (void *)TWI0_CLKDIV;
- return 0;
+ switch (adap->hwadapnr) {
+#if CONFIG_SYS_MAX_I2C_BUS > 2
+ case 2:
+ return (struct twi_regs *)TWI2_CLKDIV;
#endif
#if CONFIG_SYS_MAX_I2C_BUS > 1
case 1:
- twi = (void *)TWI1_CLKDIV;
- return 0;
-#endif
-#if CONFIG_SYS_MAX_I2C_BUS > 2
- case 2:
- twi = (void *)TWI2_CLKDIV;
- return 0;
+ return (struct twi_regs *)TWI1_CLKDIV;
#endif
- default: return -1;
+ case 0:
+ return (struct twi_regs *)TWI0_CLKDIV;
+
+ default:
+ printf("wrong hwadapnr: %d\n", adap->hwadapnr);
}
+
+ return NULL;
}
-/**
- * i2c_get_bus_num - returns index of active I2C bus
- */
-unsigned int i2c_get_bus_num(void)
-{
- switch ((unsigned long)twi) {
-#if CONFIG_SYS_MAX_I2C_BUS > 0
- case TWI0_CLKDIV:
- return 0;
-#endif
+U_BOOT_I2C_ADAP_COMPLETE(adi_i2c0, adi_i2c_init, adi_i2c_probe,
+ adi_i2c_read, adi_i2c_write,
+ adi_i2c_setspeed,
+ CONFIG_SYS_I2C_SPEED,
+ 0,
+ 0)
+
#if CONFIG_SYS_MAX_I2C_BUS > 1
- case TWI1_CLKDIV:
- return 1;
+U_BOOT_I2C_ADAP_COMPLETE(adi_i2c1, adi_i2c_init, adi_i2c_probe,
+ adi_i2c_read, adi_i2c_write,
+ adi_i2c_setspeed,
+ CONFIG_SYS_I2C_SPEED,
+ 0,
+ 1)
#endif
+
#if CONFIG_SYS_MAX_I2C_BUS > 2
- case TWI2_CLKDIV:
- return 2;
+U_BOOT_I2C_ADAP_COMPLETE(adi_i2c2, adi_i2c_init, adi_i2c_probe,
+ adi_i2c_read, adi_i2c_write,
+ adi_i2c_setspeed,
+ CONFIG_SYS_I2C_SPEED,
+ 0,
+ 2)
#endif
- default: return -1;
- }
-}
diff --git a/include/configs/bct-brettl2.h b/include/configs/bct-brettl2.h
index f0b74d8..39982ef 100644
--- a/include/configs/bct-brettl2.h
+++ b/include/configs/bct-brettl2.h
@@ -122,8 +122,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/bf518f-ezbrd.h b/include/configs/bf518f-ezbrd.h
index 4df51b9..50e85ca 100644
--- a/include/configs/bf518f-ezbrd.h
+++ b/include/configs/bf518f-ezbrd.h
@@ -134,8 +134,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/bf526-ezbrd.h b/include/configs/bf526-ezbrd.h
index 55bfbbe..7fc882a 100644
--- a/include/configs/bf526-ezbrd.h
+++ b/include/configs/bf526-ezbrd.h
@@ -131,8 +131,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/bf527-ad7160-eval.h b/include/configs/bf527-ad7160-eval.h
index 589c7a5..c2958e8 100644
--- a/include/configs/bf527-ad7160-eval.h
+++ b/include/configs/bf527-ad7160-eval.h
@@ -119,8 +119,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/bf527-ezkit.h b/include/configs/bf527-ezkit.h
index 0e68952..79e440a 100644
--- a/include/configs/bf527-ezkit.h
+++ b/include/configs/bf527-ezkit.h
@@ -134,8 +134,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/bf527-sdp.h b/include/configs/bf527-sdp.h
index a3ad7ae..b374ab5 100644
--- a/include/configs/bf527-sdp.h
+++ b/include/configs/bf527-sdp.h
@@ -103,8 +103,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/bf537-minotaur.h b/include/configs/bf537-minotaur.h
index d94c2df..6df89af 100644
--- a/include/configs/bf537-minotaur.h
+++ b/include/configs/bf537-minotaur.h
@@ -121,8 +121,8 @@
/*
* I2C settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
#define CONFIG_SYS_I2C_SPEED 50000
#define CONFIG_SYS_I2C_SLAVE 0
diff --git a/include/configs/bf537-pnav.h b/include/configs/bf537-pnav.h
index 6c9a907..4f2b2cb 100644
--- a/include/configs/bf537-pnav.h
+++ b/include/configs/bf537-pnav.h
@@ -142,8 +142,8 @@
/*
* I2C settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/bf537-srv1.h b/include/configs/bf537-srv1.h
index a6ceffa..d01d88f 100644
--- a/include/configs/bf537-srv1.h
+++ b/include/configs/bf537-srv1.h
@@ -120,8 +120,8 @@
/*
* I2C settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
#define CONFIG_SYS_I2C_SPEED 50000
#define CONFIG_SYS_I2C_SLAVE 0
diff --git a/include/configs/bf537-stamp.h b/include/configs/bf537-stamp.h
index 7ab644f..7b5a5a7 100644
--- a/include/configs/bf537-stamp.h
+++ b/include/configs/bf537-stamp.h
@@ -128,8 +128,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/bf538f-ezkit.h b/include/configs/bf538f-ezkit.h
index 743e193..e60558e 100644
--- a/include/configs/bf538f-ezkit.h
+++ b/include/configs/bf538f-ezkit.h
@@ -126,8 +126,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/bf548-ezkit.h b/include/configs/bf548-ezkit.h
index 6b29d08..e71e6d3 100644
--- a/include/configs/bf548-ezkit.h
+++ b/include/configs/bf548-ezkit.h
@@ -134,8 +134,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/bf609-ezkit.h b/include/configs/bf609-ezkit.h
index f02e155..878009f 100644
--- a/include/configs/bf609-ezkit.h
+++ b/include/configs/bf609-ezkit.h
@@ -81,8 +81,8 @@
#define CONFIG_PHYLIB
/* i2c Settings */
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C
/*
* Flash Settings
diff --git a/include/configs/bfin_adi_common.h b/include/configs/bfin_adi_common.h
index ea9acf6..d75fc7b 100644
--- a/include/configs/bfin_adi_common.h
+++ b/include/configs/bfin_adi_common.h
@@ -72,7 +72,7 @@
# ifdef CONFIG_SPI_FLASH
# define CONFIG_CMD_SF
# endif
-# if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C_SOFT)
+# if defined(CONFIG_SYS_I2C) || defined(CONFIG_SYS_I2C_SOFT)
# define CONFIG_CMD_I2C
# define CONFIG_SOFT_I2C_READ_REPEATED_START
# endif
@@ -300,7 +300,7 @@
/*
* I2C Settings
*/
-#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C_SOFT)
+#if defined(CONFIG_SYS_I2C) || defined(CONFIG_SYS_I2C_SOFT)
# ifndef CONFIG_SYS_I2C_SPEED
# define CONFIG_SYS_I2C_SPEED 50000
# endif
diff --git a/include/configs/br4.h b/include/configs/br4.h
index 13e939f..48cf184 100644
--- a/include/configs/br4.h
+++ b/include/configs/br4.h
@@ -102,8 +102,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C
/*
diff --git a/include/configs/cm-bf527.h b/include/configs/cm-bf527.h
index 3668903..643c837 100644
--- a/include/configs/cm-bf527.h
+++ b/include/configs/cm-bf527.h
@@ -113,8 +113,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/cm-bf537e.h b/include/configs/cm-bf537e.h
index 85f5341..e059568 100644
--- a/include/configs/cm-bf537e.h
+++ b/include/configs/cm-bf537e.h
@@ -122,8 +122,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/cm-bf537u.h b/include/configs/cm-bf537u.h
index 5dffd1b..1f26457 100644
--- a/include/configs/cm-bf537u.h
+++ b/include/configs/cm-bf537u.h
@@ -120,8 +120,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/cm-bf548.h b/include/configs/cm-bf548.h
index 13ea067..72eafc5 100644
--- a/include/configs/cm-bf548.h
+++ b/include/configs/cm-bf548.h
@@ -104,8 +104,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/pr1.h b/include/configs/pr1.h
index eb18d6d..13fb675 100644
--- a/include/configs/pr1.h
+++ b/include/configs/pr1.h
@@ -102,8 +102,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C
/*
diff --git a/include/configs/tcm-bf518.h b/include/configs/tcm-bf518.h
index e9bff83..e96a742 100644
--- a/include/configs/tcm-bf518.h
+++ b/include/configs/tcm-bf518.h
@@ -103,8 +103,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
diff --git a/include/configs/tcm-bf537.h b/include/configs/tcm-bf537.h
index caf8847..42129fb 100644
--- a/include/configs/tcm-bf537.h
+++ b/include/configs/tcm-bf537.h
@@ -122,8 +122,8 @@
/*
* I2C Settings
*/
+#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_ADI
-#define CONFIG_HARD_I2C 1
/*
--
1.7.9.5
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