1 files changed, 0 insertions, 120 deletions
diff --git a/chip/nrf51/uart.c b/chip/nrf51/uart.c
deleted file mode 100644
index 1f546a2b79..0000000000
--- a/chip/nrf51/uart.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/* Copyright 2014 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-/* USART driver for Chrome EC */
-
-#include "clock.h"
-#include "console.h"
-#include "common.h"
-#include "dma.h"
-#include "hooks.h"
-#include "registers.h"
-#include "system.h"
-#include "task.h"
-#include "uart.h"
-#include "util.h"
-
-#define CPUTS(outstr) cputs(CC_SYSTEM, outstr)
-#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ## args)
-#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ## args)
-
-
-static int ever_sent;    /* if we ever sent byte to TXD? */
-static int init_done;    /* Initialization done? */
-static int should_stop;  /* Last TX control action */
-
-int uart_init_done(void)
-{
-	return init_done;
-}
-
-void uart_tx_start(void)
-{
-	disable_sleep(SLEEP_MASK_UART);
-	should_stop = 0;
-	NRF51_UART_INTENSET = BIT(NRF55_UART_TXDRDY_BIT);
-	task_trigger_irq(NRF51_PERID_USART);
-}
-
-void uart_tx_stop(void)
-{
-	NRF51_UART_INTENCLR = BIT(NRF55_UART_TXDRDY_BIT);
-	should_stop = 1;
-	enable_sleep(SLEEP_MASK_UART);
-}
-
-int uart_tx_ready(void)
-{
-	/*
-	 * nRF51 design is NOT tx-empty style. Instead, it is if a byte is
-	 * ever transmitted from TxD. This means NRF51_UART_TXDRDY is always
-	 * 0 after reset. So, we use 'ever_sent' to send the first byte.
-	 */
-	return NRF51_UART_TXDRDY || (!ever_sent);
-}
-
-int uart_rx_available(void)
-{
-	return NRF51_UART_RXDRDY;
-}
-
-void uart_tx_flush(void)
-{
-	while (!uart_tx_ready())
-		;
-}
-
-void uart_write_char(char c)
-{
-	ever_sent = 1;
-	NRF51_UART_TXDRDY = 0;
-	NRF51_UART_TXD = c;
-	NRF51_UART_STARTTX = 1;
-}
-
-int uart_read_char(void)
-{
-	NRF51_UART_RXDRDY = 0;
-	return NRF51_UART_RXD;
-}
-
-/* Interrupt handler for console USART */
-void uart_interrupt(void)
-{
-#ifndef CONFIG_UART_RX_DMA
-	/*
-	 * Read input FIFO until empty.  DMA-based receive does this from a
-	 * hook in the UART buffering module.
-	 */
-	uart_process_input();
-#endif
-
-	/* Fill output FIFO */
-	uart_process_output();
-
-#ifndef CONFIG_UART_TX_DMA
-	if (!should_stop)
-		NRF51_UART_INTENSET = BIT(NRF55_UART_TXDRDY_BIT);
-#endif  /* CONFIG_UART_TX_DMA */
-
-}
-DECLARE_IRQ(NRF51_PERID_USART, uart_interrupt, 2);
-
-
-void uart_init(void)
-{
-	NRF51_UART_PSELTXD = NRF51_UART_TX_PIN;   /* GPIO Port for Tx */
-	NRF51_UART_PSELRXD = NRF51_UART_RX_PIN;   /* GPIO Port for Rx */
-	NRF51_UART_CONFIG = 0;    /* disable HW flow control, no parity bit */
-	NRF51_UART_BAUDRATE = 0x01d7e000;  /* 115200 */
-	NRF51_UART_ENABLE = 0x4;  /* Enable UART */
-
-	task_enable_irq(NRF51_PERID_USART);
-
-	NRF51_UART_INTENSET = BIT(NRF55_UART_RXDRDY_BIT);
-	NRF51_UART_STARTRX = 1;
-
-	init_done = 1;
-}