18 #define NETUP_I2C_BUS0_ADDR		0x4800
19 #define NETUP_I2C_BUS1_ADDR		0x4840
23 #define TWI_IRQEN_COMPL	0x1
24 #define TWI_IRQEN_ANACK 0x2
25 #define TWI_IRQEN_DNACK 0x4
29 #define TWI_IRQ_TX	0x800
30 #define TWI_IRQ_RX	0x1000
33 #define TWI_TRANSFER	0x100
34 #define TWI_NOSTOP	0x200
35 #define TWI_SOFT_RESET	0x2000
39 #define FIFO_IRQEN	0x8000
40 #define FIFO_RESET	0x4000
75 		"%s(): twi_ctrl0_state 0x%x\n", __func__, reg);  in netup_i2c_interrupt()
76 	if ((reg & TWI_IRQEN_COMPL) != 0 && (reg & TWI_IRQ_COMPL)) {  in netup_i2c_interrupt()
82 	if ((reg & TWI_IRQEN_ANACK) != 0 && (reg & TWI_IRQ_ANACK)) {  in netup_i2c_interrupt()
88 	if ((reg & TWI_IRQEN_DNACK) != 0 && (reg & TWI_IRQ_DNACK)) {  in netup_i2c_interrupt()
94 	if ((reg & TWI_IRQ_RX) != 0) {  in netup_i2c_interrupt()
102 	if ((reg & TWI_IRQ_TX) != 0) {  in netup_i2c_interrupt()
127 	writew(0x800, &i2c->regs->tx_fifo.stat_ctrl);  in netup_i2c_reset()
128 	writew(0x800, &i2c->regs->rx_fifo.stat_ctrl);  in netup_i2c_reset()
135 		(readw(&i2c->regs->tx_fifo.stat_ctrl) & 0x3f);  in netup_i2c_fifo_tx()
143 			"%s(): write 0x%02x\n", __func__, data);  in netup_i2c_fifo_tx()
156 	u32 fifo_size = readw(&i2c->regs->rx_fifo.stat_ctrl) & 0x3f;  in netup_i2c_fifo_rx()
162 		if ((i2c->msg->flags & I2C_M_RD) != 0 &&  in netup_i2c_fifo_rx()
166 				"%s(): read 0x%02x\n", __func__, data);  in netup_i2c_fifo_rx()
179 	u16 rdflag = ((i2c->msg->flags & I2C_M_RD) ? 1 : 0);  in netup_i2c_start_xfer()
187 		"%s(): length %d twi_addr_ctrl1 0x%x twi_ctrl0_stat 0x%x\n",  in netup_i2c_start_xfer()
192 	i2c->xmit_size = 0;  in netup_i2c_start_xfer()
216 	for (i = 0; i < num; i++) {  in netup_i2c_xfer()
219 		trans_done = 0;  in netup_i2c_xfer()
234 					if ((i2c->msg->flags & I2C_M_RD) != 0 &&  in netup_i2c_xfer()
301 	if (bus_num < 0 || bus_num > 1) {  in netup_i2c_init()
310 		(bus_num == 0 ? NETUP_I2C_BUS0_ADDR : NETUP_I2C_BUS1_ADDR));  in netup_i2c_init()
319 		"%s(): registered I2C bus %d at 0x%x\n",  in netup_i2c_init()
321 		bus_num, (bus_num == 0 ?  in netup_i2c_init()
324 	return 0;  in netup_i2c_init()
331 	if (bus_num < 0 || bus_num > 1) {  in netup_i2c_remove()
348 	ret = netup_i2c_init(ndev, 0);  in netup_i2c_register()
353 		netup_i2c_remove(ndev, 0);  in netup_i2c_register()
356 	return 0;  in netup_i2c_register()
361 	netup_i2c_remove(ndev, 0);  in netup_i2c_unregister()