+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
*
* Derived from linux/drivers/tty/serial/bcm63xx_uart.c:
* Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <clk.h>
+#include <dm.h>
#include <debug_uart.h>
#include <errno.h>
#include <serial.h>
#include <asm/io.h>
#include <asm/types.h>
-#include <dm/device.h>
/* UART Control register */
#define UART_CTL_REG 0x0
UART_CTL_RXTIMEOUT_5 |
/* set 8 bits/symbol */
UART_CTL_BITSPERSYM_8 |
+ /* set 1 stop bit */
+ UART_CTL_STOPBITS_1 |
/* set parity to even */
UART_CTL_RXPAREVEN_MASK |
UART_CTL_TXPAREVEN_MASK);
UART_FIFO_CFG_TX_4);
/* set baud rate */
- val = (clk / baudrate) / 16;
+ val = ((clk / baudrate) >> 4);
if (val & 0x1)
- val = val;
+ val = (val >> 1);
else
- val = val / 2 - 1;
+ val = (val >> 1) - 1;
writel_be(val, base + UART_BAUD_REG);
/* clear interrupts */
{
struct bcm6345_serial_priv *priv = dev_get_priv(dev);
struct clk clk;
- fdt_addr_t addr;
- fdt_size_t size;
int ret;
/* get address */
- addr = dev_get_addr_size_index(dev, 0, &size);
- if (addr == FDT_ADDR_T_NONE)
+ priv->base = dev_remap_addr(dev);
+ if (!priv->base)
return -EINVAL;
- priv->base = ioremap(addr, size);
-
/* get clock rate */
ret = clk_get_by_index(dev, 0, &clk);
if (ret < 0)
return ret;
- priv->uartclk = clk_get_rate(&clk) / 2;
+ priv->uartclk = clk_get_rate(&clk);
clk_free(&clk);
/* initialize serial */