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Diffstat (limited to 'drivers/serial/s3c64xx.c')
-rw-r--r--drivers/serial/s3c64xx.c187
1 files changed, 0 insertions, 187 deletions
diff --git a/drivers/serial/s3c64xx.c b/drivers/serial/s3c64xx.c
deleted file mode 100644
index b590992..0000000
--- a/drivers/serial/s3c64xx.c
+++ /dev/null
@@ -1,187 +0,0 @@
-/*
- * (C) Copyright 2002
- * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
- *
- * (C) Copyright 2008
- * Guennadi Liakhovetki, DENX Software Engineering, <lg@denx.de>
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * 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
- *
- */
-
-#include <common.h>
-#include <linux/compiler.h>
-#include <serial.h>
-#include <asm/arch/s3c6400.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#ifdef CONFIG_SERIAL1
-#define UART_NR S3C64XX_UART0
-
-#elif defined(CONFIG_SERIAL2)
-#define UART_NR S3C64XX_UART1
-
-#elif defined(CONFIG_SERIAL3)
-#define UART_NR S3C64XX_UART2
-
-#else
-#error "Bad: you didn't configure serial ..."
-#endif
-
-/*
- * The coefficient, used to calculate the baudrate on S3C6400 UARTs is
- * calculated as
- * C = UBRDIV * 16 + number_of_set_bits_in_UDIVSLOT
- * however, section 31.6.11 of the datasheet doesn't recomment using 1 for 1,
- * 3 for 2, ... (2^n - 1) for n, instead, they suggest using these constants:
- */
-static const int udivslot[] = {
- 0,
- 0x0080,
- 0x0808,
- 0x0888,
- 0x2222,
- 0x4924,
- 0x4a52,
- 0x54aa,
- 0x5555,
- 0xd555,
- 0xd5d5,
- 0xddd5,
- 0xdddd,
- 0xdfdd,
- 0xdfdf,
- 0xffdf,
-};
-
-static void s3c64xx_serial_setbrg(void)
-{
- s3c64xx_uart *const uart = s3c64xx_get_base_uart(UART_NR);
- u32 pclk = get_PCLK();
- u32 baudrate = gd->baudrate;
- int i;
-
- i = (pclk / baudrate) % 16;
-
- uart->UBRDIV = pclk / baudrate / 16 - 1;
- uart->UDIVSLOT = udivslot[i];
-
- for (i = 0; i < 100; i++)
- barrier();
-}
-
-/*
- * Initialise the serial port with the given baudrate. The settings
- * are always 8 data bits, no parity, 1 stop bit, no start bits.
- */
-static int s3c64xx_serial_init(void)
-{
- s3c64xx_uart *const uart = s3c64xx_get_base_uart(UART_NR);
-
- /* reset and enable FIFOs, set triggers to the maximum */
- uart->UFCON = 0xff;
- uart->UMCON = 0;
- /* 8N1 */
- uart->ULCON = 3;
- /* No interrupts, no DMA, pure polling */
- uart->UCON = 5;
-
- serial_setbrg();
-
- return 0;
-}
-
-/*
- * Read a single byte from the serial port. Returns 1 on success, 0
- * otherwise. When the function is succesfull, the character read is
- * written into its argument c.
- */
-static int s3c64xx_serial_getc(void)
-{
- s3c64xx_uart *const uart = s3c64xx_get_base_uart(UART_NR);
-
- /* wait for character to arrive */
- while (!(uart->UTRSTAT & 0x1));
-
- return uart->URXH & 0xff;
-}
-
-#ifdef CONFIG_MODEM_SUPPORT
-static int be_quiet;
-void disable_putc(void)
-{
- be_quiet = 1;
-}
-
-void enable_putc(void)
-{
- be_quiet = 0;
-}
-#endif
-
-
-/*
- * Output a single byte to the serial port.
- */
-static void s3c64xx_serial_putc(const char c)
-{
- s3c64xx_uart *const uart = s3c64xx_get_base_uart(UART_NR);
-
-#ifdef CONFIG_MODEM_SUPPORT
- if (be_quiet)
- return;
-#endif
-
- /* wait for room in the tx FIFO */
- while (!(uart->UTRSTAT & 0x2));
-
- uart->UTXH = c;
-
- /* If \n, also do \r */
- if (c == '\n')
- serial_putc('\r');
-}
-
-/*
- * Test whether a character is in the RX buffer
- */
-static int s3c64xx_serial_tstc(void)
-{
- s3c64xx_uart *const uart = s3c64xx_get_base_uart(UART_NR);
-
- return uart->UTRSTAT & 0x1;
-}
-
-static struct serial_device s3c64xx_serial_drv = {
- .name = "s3c64xx_serial",
- .start = s3c64xx_serial_init,
- .stop = NULL,
- .setbrg = s3c64xx_serial_setbrg,
- .putc = s3c64xx_serial_putc,
- .puts = default_serial_puts,
- .getc = s3c64xx_serial_getc,
- .tstc = s3c64xx_serial_tstc,
-};
-
-void s3c64xx_serial_initialize(void)
-{
- serial_register(&s3c64xx_serial_drv);
-}
-
-__weak struct serial_device *default_serial_console(void)
-{
- return &s3c64xx_serial_drv;
-}