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arm: Remove support for s3c4510

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This stuff has been rotting in the tree for a year now. Remove it.

Signed-off-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marek Vasut
2012-10-03 08:54:09 +00:00
committed by Albert ARIBAUD
parent 6f62f42071
commit afad40299e
11 changed files with 2 additions and 876 deletions
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1
drivers/serial/Makefile
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@@ -36,7 +36,6 @@ COBJS-$(CONFIG_MCFUART) += mcfuart.o
COBJS-$(CONFIG_NS9750_UART) += ns9750_serial.o
COBJS-$(CONFIG_OPENCORES_YANU) += opencores_yanu.o
COBJS-$(CONFIG_SYS_NS16550) += ns16550.o
COBJS-$(CONFIG_DRIVER_S3C4510_UART) += s3c4510b_uart.o
COBJS-$(CONFIG_S3C64XX) += s3c64xx.o
COBJS-$(CONFIG_S5P) += serial_s5p.o
COBJS-$(CONFIG_SYS_NS16550_SERIAL) += serial_ns16550.o

231
drivers/serial/s3c4510b_uart.c
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@@ -1,231 +0,0 @@
/*
* Copyright (c) 2004 Cucy Systems (http://www.cucy.com)
* Curt Brune <curt@cucy.com>
*
* (C) Copyright 2004
* DAVE Srl
* http://www.dave-tech.it
* http://www.wawnet.biz
* mailto:info@wawnet.biz
*
* (C) Copyright 2002-2004
* Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Alex Zuepke <azu@sysgo.de>
*
* Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
*
* 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
*
* MODULE: $Id:$
* Description: UART/Serial interface for Samsung S3C4510B SoC
* Runtime Env: ARM7TDMI
* Change History:
* 03-02-04 Create (Curt Brune) curt@cucy.com
*
*/
#include <common.h>
#include <asm/hardware.h>
#include "s3c4510b_uart.h"
DECLARE_GLOBAL_DATA_PTR;
static UART *uart;
/* flush serial input queue. returns 0 on success or negative error
* number otherwise
*/
static int serial_flush_input(void)
{
volatile u32 tmp;
/* keep on reading as long as the receiver is not empty */
while( uart->m_stat.bf.rxReady) {
tmp = uart->m_rx;
}
return 0;
}
/* flush output queue. returns 0 on success or negative error number
* otherwise
*/
static int serial_flush_output(void)
{
/* wait until the transmitter is no longer busy */
while( !uart->m_stat.bf.txBufEmpty);
return 0;
}
static void s3c4510b_serial_setbrg(void)
{
UART_LINE_CTRL ulctrl;
UART_CTRL uctrl;
UART_BAUD_DIV ubd;
serial_flush_output();
serial_flush_input();
/* control register */
uctrl.ui = 0x0;
uctrl.bf.rxMode = 0x1;
uctrl.bf.rxIrq = 0x0;
uctrl.bf.txMode = 0x1;
uctrl.bf.DSR = 0x0;
uctrl.bf.sendBreak = 0x0;
uctrl.bf.loopBack = 0x0;
uart->m_ctrl.ui = uctrl.ui;
/* line control register */
ulctrl.ui = 0x0;
ulctrl.bf.wordLen = 0x3; /* 8 bit data */
ulctrl.bf.nStop = 0x0; /* 1 stop bit */
ulctrl.bf.parity = 0x0; /* no parity */
ulctrl.bf.clk = 0x0; /* internal clock */
ulctrl.bf.infra_red = 0x0; /* no infra_red */
uart->m_lineCtrl.ui = ulctrl.ui;
ubd.ui = 0x0;
/* see table on page 10-15 in SAMSUNG S3C4510B manual */
/* get correct divisor */
switch(gd->baudrate) {
case 1200: ubd.bf.cnt0 = 1301; break;
case 2400: ubd.bf.cnt0 = 650; break;
case 4800: ubd.bf.cnt0 = 324; break;
case 9600: ubd.bf.cnt0 = 162; break;
case 19200: ubd.bf.cnt0 = 80; break;
case 38400: ubd.bf.cnt0 = 40; break;
case 57600: ubd.bf.cnt0 = 26; break;
case 115200: ubd.bf.cnt0 = 13; break;
}
uart->m_baudDiv.ui = ubd.ui;
uart->m_baudCnt = 0x0;
uart->m_baudClk = 0x0;
}
/*
* 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 s3c4510b_serial_init(void)
{
#if CONFIG_SERIAL1 == 1
uart = (UART *)UART0_BASE;
#elif CONFIG_SERIAL1 == 2
uart = (UART *)UART1_BASE;
#else
#error CONFIG_SERIAL1 not equal to 1 or 2
#endif
serial_setbrg ();
return (0);
}
/*
* Output a single byte to the serial port.
*/
static void s3c4510_serial_putc(const char c)
{
/* wait for room in the transmit FIFO */
while( !uart->m_stat.bf.txBufEmpty);
uart->m_tx = c;
/*
to be polite with serial console add a line feed
to the carriage return character
*/
if (c=='\n')
serial_putc('\r');
}
/*
* Test if an input byte is ready from the serial port. Returns non-zero on
* success, 0 otherwise.
*/
static int s3c4510b_serial_tstc(void)
{
return uart->m_stat.bf.rxReady;
}
/*
* 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 s3c4510b_serial_getc(void)
{
int rv;
for(;;) {
rv = serial_tstc();
if (rv) {
return uart->m_rx & 0xFF;
}
}
}
static void s3c4510b_serial_puts(const char *s)
{
default_serial_puts(s);
/* busy wait for tx complete */
while (!uart->m_stat.bf.txComplete);
/* clear break */
uart->m_ctrl.bf.sendBreak = 0;
}
static struct serial_device s3c4510b_serial_drv = {
.name = "s3c4510b_serial",
.start = s3c4510b_serial_init,
.stop = NULL,
.setbrg = s3c4510b_serial_setbrg,
.putc = s3c4510b_serial_putc,
.puts = s3c4510b_serial_puts,
.getc = s3c4510b_serial_getc,
.tstc = s3c4510b_serial_tstc,
};
void s3c4510b_serial_initialize(void)
{
serial_register(&s3c4510b_serial_drv);
}
__weak struct serial_device *default_serial_console(void)
{
return &s3c4510b_serial_drv;
}

109
drivers/serial/s3c4510b_uart.h
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@@ -1,109 +0,0 @@
#ifndef __UART_H
#define __UART_H
/*
* Copyright (c) 2004 Cucy Systems (http://www.cucy.com)
* Curt Brune <curt@cucy.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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
*
* Description: S3C4510B UART register layout
*/
/* UART LINE CONTROL register */
typedef struct __BF_UART_LINE_CTRL {
u32 wordLen: 2;
u32 nStop: 1;
u32 parity: 3;
u32 clk: 1;
u32 infra_red: 1;
u32 unused:24;
} BF_UART_LINE_CTRL;
typedef union _UART_LINE_CTRL {
u32 ui;
BF_UART_LINE_CTRL bf;
} UART_LINE_CTRL;
/* UART CONTROL register */
typedef struct __BF_UART_CTRL {
u32 rxMode: 2;
u32 rxIrq: 1;
u32 txMode: 2;
u32 DSR: 1;
u32 sendBreak: 1;
u32 loopBack: 1;
u32 unused:24;
} BF_UART_CTRL;
typedef union _UART_CTRL {
u32 ui;
BF_UART_CTRL bf;
} UART_CTRL;
/* UART STATUS register */
typedef struct __BF_UART_STAT {
u32 overrun: 1;
u32 parity: 1;
u32 frame: 1;
u32 breakIrq: 1;
u32 DTR: 1;
u32 rxReady: 1;
u32 txBufEmpty: 1;
u32 txComplete: 1;
u32 unused:24;
} BF_UART_STAT;
typedef union _UART_STAT {
u32 ui;
BF_UART_STAT bf;
} UART_STAT;
/* UART BAUD_DIV register */
typedef struct __BF_UART_BAUD_DIV {
u32 cnt1: 4;
u32 cnt0:12;
u32 unused:16;
} BF_UART_BAUD_DIV;
typedef union _UART_BAUD_DIV {
u32 ui;
BF_UART_BAUD_DIV bf;
} UART_BAUD_DIV;
/* UART register block */
typedef struct __UART {
volatile UART_LINE_CTRL m_lineCtrl;
volatile UART_CTRL m_ctrl;
volatile UART_STAT m_stat;
volatile u32 m_tx;
volatile u32 m_rx;
volatile UART_BAUD_DIV m_baudDiv;
volatile u32 m_baudCnt;
volatile u32 m_baudClk;
} UART;
#define NL 0x0A
#define CR 0x0D
#define BSP 0x08
#define ESC 0x1B
#define CTRLZ 0x1A
#define RUBOUT 0x7F
#endif

2
drivers/serial/serial.c
View File

@@ -96,7 +96,6 @@ serial_initfunc(lpc32xx_serial_initialize);
serial_initfunc(mcf_serial_initialize);
serial_initfunc(ns9750_serial_initialize);
serial_initfunc(oc_serial_initialize);
serial_initfunc(s3c4510b_serial_initialize);
serial_initfunc(s3c64xx_serial_initialize);
serial_initfunc(sandbox_serial_initialize);
serial_initfunc(clps7111_serial_initialize);
@@ -193,7 +192,6 @@ void serial_initialize(void)
mcf_serial_initialize();
ns9750_serial_initialize();
oc_serial_initialize();
s3c4510b_serial_initialize();
s3c64xx_serial_initialize();
sandbox_serial_initialize();
clps7111_serial_initialize();