diff options
Diffstat (limited to 'src/cpu/samsung/exynos5250/uart.c')
| -rw-r--r-- | src/cpu/samsung/exynos5250/uart.c | 58 |
1 files changed, 16 insertions, 42 deletions
diff --git a/src/cpu/samsung/exynos5250/uart.c b/src/cpu/samsung/exynos5250/uart.c index e6d9654b7e..319e495341 100644 --- a/src/cpu/samsung/exynos5250/uart.c +++ b/src/cpu/samsung/exynos5250/uart.c @@ -1,14 +1,11 @@ /* - * (C) Copyright 2009 SAMSUNG Electronics - * Minkyu Kang <mk7.kang@samsung.com> - * Heungjun Kim <riverful.kim@samsung.com> + * This file is part of the coreboot project. * - * based on drivers/serial/s3c64xx.c + * Copyright (C) 2009 Samsung Electronics * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. + * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -17,19 +14,15 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#include <types.h> +#include <console/console.h> /* for __console definition */ #include <uart.h> #include <arch/io.h> - -#include <console/console.h> /* for __console definition */ - -#include <cpu/samsung/exynos5250/exynos5-common.h> -#include <cpu/samsung/exynos5250/uart.h> -#include <cpu/samsung/exynos5250/clk.h> +#include "uart.h" +#include "clk.h" +#include "cpu.h" #define RX_FIFO_COUNT_MASK 0xff #define RX_FIFO_FULL_MASK (1 << 8) @@ -38,24 +31,6 @@ /* FIXME(dhendrix): exynos5 has 4 UARTs and its functions in u-boot take a base_port argument. However console_driver functions do not. */ static uint32_t base_port = CONFIG_CONSOLE_SERIAL_UART_ADDRESS; -#if 0 -/* Information about a serial port */ -struct fdt_serial { - u32 base_addr; /* address of registers in physical memory */ - u8 port_id; /* uart port number */ - u8 enabled; /* 1 if enabled, 0 if disabled */ -} config = { - -1U -}; -#endif - -#if 0 -static inline struct s5p_uart *s5p_get_base_uart(int dev_index) -{ - /* FIXME: there should be an assertion here if dev_index is >3 */ - return (struct s5p_uart *)(EXYNOS5_UART0_BASE + (0x10000 * dev_index)); -} -#endif /* * The coefficient, used to calculate the baudrate on S5P UARTs is @@ -85,15 +60,13 @@ static const int udivslot[] = { static void serial_setbrg_dev(void) { -// struct s5p_uart *const uart = s5p_get_base_uart(dev_index); struct s5p_uart *uart = (struct s5p_uart *)base_port; u32 uclk; u32 baudrate = CONFIG_TTYS0_BAUD; u32 val; - enum periph_id periph; - periph = exynos5_get_periph_id(base_port); - uclk = clock_get_periph_rate(periph); + // All UARTs share the same clock. + uclk = clock_get_periph_rate(PERIPH_ID_UART3); val = uclk / baudrate; writel(val / 16 - 1, &uart->ubrdiv); @@ -117,7 +90,6 @@ static void serial_setbrg_dev(void) */ static void exynos5_init_dev(void) { -// struct s5p_uart *const uart = s5p_get_base_uart(dev_index); struct s5p_uart *uart = (struct s5p_uart *)base_port; // TODO initialize with correct peripheral id by base_port. @@ -136,7 +108,6 @@ static void exynos5_init_dev(void) static int exynos5_uart_err_check(int op) { - //struct s5p_uart *const uart = s5p_get_base_uart(dev_index); struct s5p_uart *uart = (struct s5p_uart *)base_port; unsigned int mask; @@ -162,7 +133,6 @@ static int exynos5_uart_err_check(int op) */ static unsigned char exynos5_uart_rx_byte(void) { -// struct s5p_uart *const uart = s5p_get_base_uart(dev_index); struct s5p_uart *uart = (struct s5p_uart *)base_port; /* wait for character to arrive */ @@ -180,7 +150,6 @@ static unsigned char exynos5_uart_rx_byte(void) */ static void exynos5_uart_tx_byte(unsigned char data) { -// struct s5p_uart *const uart = s5p_get_base_uart(dev_index); struct s5p_uart *uart = (struct s5p_uart *)base_port; /* wait for room in the tx FIFO */ @@ -193,6 +162,7 @@ static void exynos5_uart_tx_byte(unsigned char data) } #if !defined(__PRE_RAM__) + static const struct console_driver exynos5_uart_console __console = { .init = exynos5_init_dev, .tx_byte = exynos5_uart_tx_byte, @@ -205,7 +175,9 @@ uint32_t uartmem_getbaseaddr(void) { return base_port; } + #else + void uart_init(void) { exynos5_init_dev(); @@ -221,6 +193,8 @@ void uart_tx_byte(unsigned char data) exynos5_uart_tx_byte(data); } -void uart_tx_flush(void) { +void uart_tx_flush(void) +{ } + #endif |