83 	struct i2c_regs *regs = (struct i2c_regs *)base;  in i2c_reset()  local
85 	io_setbits8((vaddr_t)&regs->ibcr, I2C_IBCR_MDIS);  in i2c_reset()
86 	io_setbits8((vaddr_t)&regs->ibsr, I2C_IBSR_IBAL | I2C_IBSR_IBIF);  in i2c_reset()
87 	io_clrbits8((vaddr_t)&regs->ibcr, I2C_IBCR_IBIE | I2C_IBCR_DMAEN);  in i2c_reset()
88 	io_clrbits8((vaddr_t)&regs->ibic, I2C_IBIC_BIIE);  in i2c_reset()
99 	struct i2c_regs *regs = (struct i2c_regs *)base;  in i2c_get_ibfd()  local
104 	if (io_read8((vaddr_t)&regs->ibdbg) & I2C_IBDBG_GLFLT_EN) {  in i2c_get_ibfd()
121 	struct i2c_regs *regs = NULL;  in i2c_init()  local
154 	regs = (struct i2c_regs *)ctrl_base;  in i2c_init()
160 	io_write8((vaddr_t)&regs->ibfd, ibfd);  in i2c_init()
172 static TEE_Result i2c_bus_test_bus_busy(struct i2c_regs *regs, bool test_busy)  in i2c_bus_test_bus_busy()  argument
178 		reg = io_read8((vaddr_t)&regs->ibsr);  in i2c_bus_test_bus_busy()
181 			io_write8((vaddr_t)&regs->ibsr, reg);  in i2c_bus_test_bus_busy()
205 static TEE_Result i2c_transfer_complete(struct i2c_regs *regs, bool test_rx_ack)  in i2c_transfer_complete()  argument
211 		reg = io_read8((vaddr_t)&regs->ibsr);  in i2c_transfer_complete()
215 			io_write8((vaddr_t)&regs->ibsr, reg);  in i2c_transfer_complete()
240 static TEE_Result i2c_read(struct i2c_regs *regs, unsigned int slave_address,  in i2c_read()  argument
248 	io_write8((vaddr_t)&regs->ibdr, (slave_address << 0x1) | BIT(0));  in i2c_read()
249 	res = i2c_transfer_complete(regs, I2C_BUS_TEST_RX_ACK);  in i2c_read()
254 	io_clrbits8((vaddr_t)&regs->ibcr, I2C_IBCR_TXRX);  in i2c_read()
257 		io_clrbits8((vaddr_t)&regs->ibcr, I2C_IBCR_NOACK);  in i2c_read()
261 	io_read8((vaddr_t)&regs->ibdr);  in i2c_read()
264 		res = i2c_transfer_complete(regs, I2C_BUS_NO_TEST_RX_ACK);  in i2c_read()
269 			io_setbits8((vaddr_t)&regs->ibcr, I2C_IBCR_NOACK);  in i2c_read()
273 				io_setbits8((vaddr_t)&regs->ibcr,  in i2c_read()
277 				io_clrbits8((vaddr_t)&regs->ibcr,  in i2c_read()
279 				res = i2c_bus_test_bus_busy(regs,  in i2c_read()
285 		operation->buffer[n] = io_read8((vaddr_t)&regs->ibdr);  in i2c_read()
297 static TEE_Result i2c_write(struct i2c_regs *regs, unsigned int slave_address,  in i2c_write()  argument
304 	io_write8((vaddr_t)&regs->ibdr,  in i2c_write()
306 	res = i2c_transfer_complete(regs, I2C_BUS_TEST_RX_ACK);  in i2c_write()
312 		io_write8((vaddr_t)&regs->ibdr, operation->buffer[n]);  in i2c_write()
313 		res = i2c_transfer_complete(regs, I2C_BUS_TEST_RX_ACK);  in i2c_write()
325 static TEE_Result i2c_stop(struct i2c_regs *regs)  in i2c_stop()  argument
330 	reg = io_read8((vaddr_t)&regs->ibsr);  in i2c_stop()
333 		io_clrbits8((vaddr_t)&regs->ibcr,  in i2c_stop()
335 		res = i2c_bus_test_bus_busy(regs, I2C_BUS_TEST_IDLE);  in i2c_stop()
341 	io_setbits8((vaddr_t)&regs->ibcr, I2C_IBCR_MDIS);  in i2c_stop()
350 static TEE_Result i2c_start(struct i2c_regs *regs)  in i2c_start()  argument
354 	io_setbits8((vaddr_t)&regs->ibsr, I2C_IBSR_IBAL | I2C_IBSR_IBIF);  in i2c_start()
355 	io_clrbits8((vaddr_t)&regs->ibcr, I2C_IBCR_MDIS);  in i2c_start()
361 	io_setbits8((vaddr_t)&regs->ibcr, I2C_IBCR_MSSL);  in i2c_start()
362 	res = i2c_bus_test_bus_busy(regs, I2C_BUS_TEST_BUSY);  in i2c_start()
367 	io_setbits8((vaddr_t)&regs->ibcr, I2C_IBCR_TXRX | I2C_IBCR_NOACK);  in i2c_start()
377 	struct i2c_regs *regs = (struct i2c_regs *)base;  in i2c_bus_xfer()  local
382 	res = i2c_bus_test_bus_busy(regs, I2C_BUS_TEST_IDLE);  in i2c_bus_xfer()
386 	res = i2c_start(regs);  in i2c_bus_xfer()
397 			io_setbits8((vaddr_t)&regs->ibcr, I2C_IBCR_RSTA);  in i2c_bus_xfer()
398 			res = i2c_bus_test_bus_busy(regs, I2C_BUS_TEST_BUSY);  in i2c_bus_xfer()
405 			res = i2c_read(regs, slave_address, operation,  in i2c_bus_xfer()
408 			res = i2c_write(regs, slave_address, operation);  in i2c_bus_xfer()
414 	i2c_stop(regs);  in i2c_bus_xfer()