diff options
Diffstat (limited to 'chip/max32660/uart_chip.c')
| -rw-r--r-- | chip/max32660/uart_chip.c | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/chip/max32660/uart_chip.c b/chip/max32660/uart_chip.c index 7d323650ae..87ba59e629 100644 --- a/chip/max32660/uart_chip.c +++ b/chip/max32660/uart_chip.c @@ -1,4 +1,4 @@ -/* Copyright 2019 The Chromium OS Authors. All rights reserved. +/* Copyright 2019 The ChromiumOS Authors * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ @@ -35,24 +35,24 @@ static int done_uart_init_yet; #define UART_BAUD 115200 -#define UART_ER_IF \ - (MXC_F_UART_INT_FL_RX_FRAME_ERROR | \ +#define UART_ER_IF \ + (MXC_F_UART_INT_FL_RX_FRAME_ERROR | \ MXC_F_UART_INT_FL_RX_PARITY_ERROR | MXC_F_UART_INT_FL_RX_OVERRUN) -#define UART_ER_IE \ - (MXC_F_UART_INT_EN_RX_FRAME_ERROR | \ +#define UART_ER_IE \ + (MXC_F_UART_INT_EN_RX_FRAME_ERROR | \ MXC_F_UART_INT_EN_RX_PARITY_ERROR | MXC_F_UART_INT_EN_RX_OVERRUN) #define UART_RX_IF (UART_ER_IF | MXC_F_UART_INT_FL_RX_FIFO_THRESH) #define UART_RX_IE (UART_ER_IE | MXC_F_UART_INT_EN_RX_FIFO_THRESH) -#define UART_TX_IF \ - (UART_ER_IF | MXC_F_UART_INT_FL_TX_FIFO_ALMOST_EMPTY | \ +#define UART_TX_IF \ + (UART_ER_IF | MXC_F_UART_INT_FL_TX_FIFO_ALMOST_EMPTY | \ MXC_F_UART_INT_FL_TX_FIFO_THRESH) -#define UART_TX_IE \ - (UART_ER_IE | MXC_F_UART_INT_EN_TX_FIFO_ALMOST_EMPTY | \ +#define UART_TX_IE \ + (UART_ER_IE | MXC_F_UART_INT_EN_TX_FIFO_ALMOST_EMPTY | \ MXC_F_UART_INT_EN_TX_FIFO_THRESH) #define UART_RX_THRESHOLD_LEVEL 1 @@ -242,19 +242,20 @@ void uart_init(void) gpio_config_module(MODULE_UART, 1); /* Drain FIFOs and enable UART and set configuration */ - MXC_UART->ctrl = (MXC_F_UART_CTRL_ENABLE | MXC_S_UART_CTRL_CHAR_SIZE_8 | 1); + MXC_UART->ctrl = + (MXC_F_UART_CTRL_ENABLE | MXC_S_UART_CTRL_CHAR_SIZE_8 | 1); /* Set the baud rate */ - div = PeripheralClock / (UART_BAUD); // constant part of DIV (i.e. DIV - // * (Baudrate*factor_int)) + div = PeripheralClock / (UART_BAUD); // constant part of DIV (i.e. DIV + // * (Baudrate*factor_int)) do { factor += 1; - baud0 = div >> (7 - factor); // divide by 128,64,32,16 to - // extract integer part - baud1 = ((div << factor) - - (baud0 << 7)); // subtract factor corrected div - - // integer parts + baud0 = div >> (7 - factor); // divide by 128,64,32,16 to + // extract integer part + baud1 = ((div << factor) - (baud0 << 7)); // subtract factor + // corrected div - + // integer parts } while ((baud0 == 0) && (factor < 4)); @@ -262,7 +263,7 @@ void uart_init(void) MXC_UART->baud1 = baud1; MXC_UART->thresh_ctrl = UART_RX_THRESHOLD_LEVEL - << MXC_F_UART_THRESH_CTRL_RX_FIFO_THRESH_POS; + << MXC_F_UART_THRESH_CTRL_RX_FIFO_THRESH_POS; /* Clear Interrupt Flags */ flags = MXC_UART->int_fl; |