+++ /dev/null
---- /dev/null
-+++ b/drivers/serial/it8712.c
-@@ -0,0 +1,858 @@
-+/*
-+ * linux/drivers/char/serial_uart00.c
-+ *
-+ * Driver for UART00 serial ports
-+ *
-+ * Based on drivers/char/serial_amba.c, by ARM Limited &
-+ * Deep Blue Solutions Ltd.
-+ * Copyright 2001 Altera Corporation
-+ *
-+ * 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
-+ *
-+ * $Id: it8712.c,v 1.2 2006/06/06 06:36:04 middle Exp $
-+ *
-+ */
-+#include <linux/module.h>
-+#include <linux/tty.h>
-+#include <linux/ioport.h>
-+#include <linux/init.h>
-+#include <linux/serial.h>
-+#include <linux/console.h>
-+#include <linux/sysrq.h>
-+#include <asm/hardware.h>
-+#include <asm/system.h>
-+#include <asm/io.h>
-+#include <asm/irq.h>
-+#include <asm/uaccess.h>
-+#include <asm/bitops.h>
-+#include <asm/sizes.h>
-+
-+#if defined(CONFIG_SERIAL_IT8712_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-+#define SUPPORT_SYSRQ
-+#endif
-+
-+#include <linux/serial_core.h>
-+#include <asm/arch/sl2312.h>
-+#include <asm/arch/int_ctrl.h>
-+#include <asm/arch/it8712.h>
-+#include "it8712.h"
-+
-+//#define DEBUG 1
-+#define UART_NR 1
-+
-+#define SERIAL_IT8712_NAME "ttySI"
-+#define SERIAL_IT8712_MAJOR 204
-+#define SERIAL_IT8712_MINOR 41 /* Temporary - will change in future */
-+#define SERIAL_IT8712_NR UART_NR
-+#define UART_PORT_SIZE 0x50
-+#define LPC_HOST_CONTINUE_MODE 0x00000040
-+
-+#define IT8712_NO_PORTS UART_NR
-+#define IT8712_ISR_PASS_LIMIT 256
-+
-+#define LPC_BUS_CTRL *(unsigned int*)(IO_ADDRESS(SL2312_LPC_HOST_BASE + 4))
-+#define LPC_BUS_STATUS *(unsigned int*)(IO_ADDRESS(SL2312_LPC_HOST_BASE + 4))
-+#define LPC_SERIAL_IRQ_CTRL *(unsigned int*)(IO_ADDRESS(SL2312_LPC_HOST_BASE + 8))
-+#define LPC_SERIAL_IRQ_STATUS *(unsigned int*)(IO_ADDRESS(SL2312_LPC_HOST_BASE + 0x0c))
-+#define LPC_SERIAL_IRQ_TRITYPE *(unsigned int*)(IO_ADDRESS(SL2312_LPC_HOST_BASE + 0x10))
-+#define LPC_SERIAL_IRQ_POLARITY *(unsigned int*)(IO_ADDRESS(SL2312_LPC_HOST_BASE + 0x14))
-+#define LPC_SERIAL_IRQ_ENABLE *(unsigned int*)(IO_ADDRESS(SL2312_LPC_HOST_BASE + 0x18))
-+
-+
-+
-+
-+/*
-+ * Access macros for the SL2312 UARTs
-+ */
-+#define UART_GET_INT_STATUS(p) (inb(((p)->membase+UART_IIR)) & 0x0F) // interrupt identification
-+#define UART_PUT_IER(p, c) outb(c,((p)->membase+UART_IER)) // interrupt enable
-+#define UART_GET_IER(p) inb(((p)->membase+UART_IER))
-+#define UART_PUT_CHAR(p, c) outb(c,((p)->membase+UART_TX)) // transmitter holding
-+#define UART_GET_CHAR(p) inb(((p)->membase+UART_RX)) // receive buffer
-+#define UART_GET_LSR(p) inb(((p)->membase+UART_LSR)) // line status
-+#define UART_GET_MSR(p) inb(((p)->membase+UART_MSR)) // modem status
-+#define UART_GET_MCR(p) inb(((p)->membase+UART_MCR)) // modem control
-+#define UART_PUT_MCR(p, c) outb(c,((p)->membase+UART_MCR))
-+#define UART_GET_LCR(p) inb(((p)->membase+UART_LCR)) // mode control
-+#define UART_PUT_LCR(p, c) outb(c,((p)->membase+UART_LCR))
-+#define UART_PUT_FCR(p, c) outb(c,((p)->membase+UART_FCR)) // fifo control
-+#define UART_GET_DIV_HI(p) inb(((p)->membase+UART_DLM))
-+#define UART_PUT_DIV_HI(p, c) outb(c,((p)->membase+UART_DLM))
-+#define UART_GET_DIV_LO(p) inb(((p)->membase+UART_DLL))
-+#define UART_PUT_DIV_LO(p, c) outb(c,((p)->membase+UART_DLL))
-+#define UART_PUT_MDR(p, c) outb(c,UART_MDR((p)->membase))
-+#define UART_RX_DATA(s) ((s) & UART_LSR_DR)
-+#define UART_TX_READY(s) ((s) & UART_LSR_THRE)
-+
-+static void it8712_stop_tx(struct uart_port *port, u_int from_tty)
-+{
-+ unsigned int reg;
-+
-+ //printk("it8712 stop tx : \n");
-+ reg = UART_GET_IER(port);
-+ reg &= ~(UART_IER_THRI);
-+ UART_PUT_IER(port, reg);
-+}
-+
-+static void it8712_stop_rx(struct uart_port *port)
-+{
-+ unsigned int reg;
-+
-+ //printk("it8712 stop rx : \n");
-+ reg = UART_GET_IER(port);
-+ reg &= ~(UART_IER_RDI);
-+ UART_PUT_IER(port, reg);
-+
-+}
-+
-+static void it8712_enable_ms(struct uart_port *port)
-+{
-+ unsigned int reg;
-+
-+ //printk("it8712 enable ms : \n");
-+
-+ reg = UART_GET_IER(port);
-+ reg |= (UART_IER_MSI);
-+ UART_PUT_IER(port, reg);
-+
-+}
-+
-+static void it8712_rx_chars(struct uart_port *port, struct pt_regs *regs)
-+{
-+ struct tty_struct *tty = port->info->tty;
-+ unsigned int status, mask, ch, flg, ignored = 0;
-+
-+ // printk("it8712_rx_chars : \n");
-+ status = UART_GET_LSR(port);
-+ while (UART_RX_DATA(status)) {
-+
-+ /*
-+ * We need to read rds before reading the
-+ * character from the fifo
-+ */
-+ ch = UART_GET_CHAR(port);
-+ port->icount.rx++;
-+
-+ if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-+ goto ignore_char;
-+
-+ flg = TTY_NORMAL;
-+
-+ /*
-+ * Note that the error handling code is
-+ * out of the main execution path
-+ */
-+
-+ if (status & (UART_LSR_OE|UART_LSR_PE|UART_LSR_FE|UART_LSR_BI|UART_LSR_DE))
-+ goto handle_error;
-+ if (uart_handle_sysrq_char(port, ch, regs))
-+ goto ignore_char;
-+
-+ error_return:
-+ *tty->flip.flag_buf_ptr++ = flg;
-+ *tty->flip.char_buf_ptr++ = ch;
-+ tty->flip.count++;
-+ ignore_char:
-+ status = UART_GET_LSR(port);
-+ } // end of while
-+out:
-+ tty_flip_buffer_push(tty);
-+ return;
-+
-+handle_error:
-+ if (status & UART_LSR_BI) {
-+ status &= ~(UART_LSR_FE);
-+ port->icount.brk++;
-+
-+#ifdef SUPPORT_SYSRQ
-+ if (uart_handle_break(port))
-+ goto ignore_char;
-+#endif
-+ } else if (status & UART_LSR_PE)
-+ port->icount.parity++;
-+ else if (status & UART_LSR_FE)
-+ port->icount.frame++;
-+
-+ if (status & UART_LSR_OE)
-+ port->icount.overrun++;
-+
-+ if (status & port->ignore_status_mask) {
-+ if (++ignored > 100)
-+ goto out;
-+ goto ignore_char;
-+ }
-+
-+ mask = status & port->read_status_mask;
-+
-+ if (mask & UART_LSR_BI)
-+ flg = TTY_BREAK;
-+ else if (mask & UART_LSR_PE)
-+ flg = TTY_PARITY;
-+ else if (mask & UART_LSR_FE)
-+ flg = TTY_FRAME;
-+
-+ if (status & UART_LSR_OE) {
-+ /*
-+ * CHECK: does overrun affect the current character?
-+ * ASSUMPTION: it does not.
-+ */
-+ *tty->flip.flag_buf_ptr++ = flg;
-+ *tty->flip.char_buf_ptr++ = ch;
-+ tty->flip.count++;
-+ if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-+ goto ignore_char;
-+ ch = 0;
-+ flg = TTY_OVERRUN;
-+ }
-+#ifdef SUPPORT_SYSRQ
-+ port->sysrq = 0;
-+#endif
-+ goto error_return;
-+}
-+
-+static void it8712_tx_chars(struct uart_port *port)
-+{
-+ struct circ_buf *xmit = &port->info->xmit;
-+ int count;
-+
-+ if (port->x_char) {
-+ while(!(UART_GET_LSR(port)&UART_LSR_THRE));
-+ UART_PUT_CHAR(port, port->x_char);
-+ port->icount.tx++;
-+ port->x_char = 0;
-+
-+ return;
-+ }
-+ if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
-+ it8712_stop_tx(port, 0);
-+ return;
-+ }
-+
-+ count = port->fifosize >> 1;
-+ do {
-+ while(!(UART_GET_LSR(port)&UART_LSR_THRE));
-+ UART_PUT_CHAR(port, xmit->buf[xmit->tail]);
-+ xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-+ port->icount.tx++;
-+ if (uart_circ_empty(xmit))
-+ break;
-+ } while (--count > 0);
-+
-+ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
-+ uart_write_wakeup(port);
-+
-+ if (uart_circ_empty(xmit))
-+ it8712_stop_tx(port, 0);
-+}
-+
-+static void it8712_start_tx(struct uart_port *port, unsigned int tty_start)
-+{
-+ unsigned int reg;
-+
-+ //printk("it8712 start tx : \n");
-+ reg = UART_GET_IER(port);
-+ reg |= (UART_IER_THRI);
-+ UART_PUT_IER(port, reg);
-+ it8712_tx_chars(port);
-+}
-+
-+static void it8712_modem_status(struct uart_port *port)
-+{
-+ unsigned int status;
-+
-+// printk("it8712 modem status : \n");
-+
-+ status = UART_GET_MSR(port);
-+
-+ if (!(status & (UART_MSR_DCTS | UART_MSR_DDSR |
-+ UART_MSR_TERI | UART_MSR_DDCD)))
-+ return;
-+
-+ if (status & UART_MSR_DDCD)
-+ uart_handle_dcd_change(port, status & UART_MSR_DCD);
-+
-+ if (status & UART_MSR_DDSR)
-+ port->icount.dsr++;
-+
-+ if (status & UART_MSR_DCTS)
-+ uart_handle_cts_change(port, status & UART_MSR_CTS);
-+
-+ wake_up_interruptible(&port->info->delta_msr_wait);
-+
-+}
-+
-+static irqreturn_t it8712_int(int irq, void *dev_id, struct pt_regs *regs)
-+{
-+ struct uart_port *port = dev_id;
-+ unsigned int status, pass_counter = 0, data;
-+
-+
-+ data = LPC_SERIAL_IRQ_STATUS;
-+ if((data&0x10)==0x10)
-+ {
-+ status = UART_GET_INT_STATUS(port);
-+ do {
-+// printk("it8712_int: status %x \n", status);
-+ switch(status)
-+ {
-+ case UART_IIR_RDI:
-+ case UART_IIR_RLSI:
-+ case UART_IIR_RCTO:
-+ it8712_rx_chars(port, regs);
-+ break;
-+ case UART_IIR_THRI:
-+ it8712_tx_chars(port);
-+ break;
-+ case UART_IIR_MSI:
-+ it8712_modem_status(port);
-+ break;
-+ default:
-+ break;
-+ }
-+ if (pass_counter++ > IT8712_ISR_PASS_LIMIT)
-+ break;
-+
-+ status = UART_GET_INT_STATUS(port);
-+ } while (status);
-+ }
-+
-+ status = 0;
-+ status |= (IRQ_LPC_MASK);
-+ *((volatile unsigned int *)IRQ_CLEAR(IO_ADDRESS(SL2312_INTERRUPT_BASE))) = status;
-+
-+ //cnt=0;
-+ //do{
-+ // data = LPC_SERIAL_IRQ_STATUS;
-+ LPC_SERIAL_IRQ_STATUS = data;
-+ // cnt++;
-+ //}while(data);
-+ //if(cnt>2)
-+ // printf("it8712_uart_Isr clear LPC_SERIAL_IRQ_STATUS %x \n", cnt);
-+ return IRQ_HANDLED;
-+}
-+
-+static u_int it8712_tx_empty(struct uart_port *port)
-+{
-+// printk("it8712 tx empty : \n");
-+
-+ return ((UART_GET_LSR(port) & UART_LSR_THRE)? TIOCSER_TEMT : 0);
-+}
-+
-+static u_int it8712_get_mctrl(struct uart_port *port)
-+{
-+ unsigned int result = 0;
-+ unsigned int status;
-+
-+// printk("it8712 get mctrl : \n");
-+
-+ status = UART_GET_MSR(port);
-+ if (status & UART_MSR_DCD)
-+ result |= TIOCM_CAR;
-+ if (status & UART_MSR_DSR)
-+ result |= TIOCM_DSR;
-+ if (status & UART_MSR_CTS)
-+ result |= TIOCM_CTS;
-+ if (status & UART_MSR_RI)
-+ result |= TIOCM_RI;
-+
-+ return result;
-+}
-+
-+static void it8712_set_mctrl_null(struct uart_port *port, u_int mctrl)
-+{
-+}
-+
-+static void it8712_break_ctl(struct uart_port *port, int break_state)
-+{
-+ unsigned int lcr;
-+
-+// printk("it8712 break ctl : \n");
-+
-+ lcr = UART_GET_LCR(port);
-+ if (break_state == -1)
-+ lcr |= UART_LCR_SBC;
-+ else
-+ lcr &= ~UART_LCR_SBC;
-+ UART_PUT_LCR(port, lcr);
-+}
-+
-+static inline u_int uart_calculate_quot(struct uart_port *port, u_int baud)
-+{
-+ u_int quot;
-+
-+ /* Special case: B0 rate */
-+ if (!baud)
-+ baud = 9600;
-+
-+ quot = (port->uartclk/(16 * baud)) ;
-+
-+ return quot;
-+}
-+static void it8712_set_termios(struct uart_port *port, struct termios *termios,
-+ struct termios *old)
-+{
-+ unsigned int uart_mc, old_ier, baud, quot;
-+ unsigned long flags;
-+
-+ termios->c_cflag |= CREAD;
-+ termios->c_cflag |= CLOCAL;
-+#ifdef DEBUG
-+ printk("it8712_set_cflag(0x%x) called\n", cflag);
-+#endif
-+ baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
-+ quot = uart_get_divisor(port, baud);
-+
-+ /* byte size and parity */
-+ switch (termios->c_cflag & CSIZE) {
-+ case CS5:
-+ uart_mc = UART_LCR_WLEN5;
-+ break;
-+ case CS6:
-+ uart_mc = UART_LCR_WLEN6;
-+ break;
-+ case CS7:
-+ uart_mc = UART_LCR_WLEN7;
-+ break;
-+ default: // CS8
-+ uart_mc = UART_LCR_WLEN8;
-+ break;
-+ }
-+
-+ if (termios->c_cflag & CSTOPB)
-+ uart_mc|= UART_LCR_STOP;
-+ if (termios->c_cflag & PARENB) {
-+ uart_mc |= UART_LCR_EVEN;
-+ if (!(termios->c_cflag & PARODD))
-+ uart_mc |= UART_LCR_ODD;
-+ }
-+
-+ spin_lock_irqsave(&port->lock, flags);
-+ /*
-+ * Update the per-port timeout
-+ */
-+ uart_update_timeout(port, termios->c_cflag, baud);
-+ port->read_status_mask = UART_LSR_OE;
-+ if (termios->c_iflag & INPCK)
-+ port->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-+ if (termios->c_iflag & (BRKINT | PARMRK))
-+ port->read_status_mask |= UART_LSR_BI;
-+
-+ /*
-+ * Characters to ignore
-+ */
-+ port->ignore_status_mask = 0;
-+ if (termios->c_iflag & IGNPAR)
-+ port->ignore_status_mask |= UART_LSR_FE | UART_LSR_PE;
-+ if (termios->c_iflag & IGNBRK) {
-+ port->ignore_status_mask |= UART_LSR_BI;
-+ /*
-+ * If we're ignoring parity and break indicators,
-+ * ignore overruns to (for real raw support).
-+ */
-+ if (termios->c_iflag & IGNPAR)
-+ port->ignore_status_mask |= UART_LSR_OE;
-+ }
-+
-+ old_ier = UART_GET_IER(port);
-+
-+ if(UART_ENABLE_MS(port, termios->c_cflag))
-+ old_ier |= UART_IER_MSI;
-+
-+ /* Set baud rate */
-+ quot = quot / 13;
-+ UART_PUT_LCR(port, UART_LCR_DLAB);
-+ UART_PUT_DIV_LO(port, (quot & 0xff));
-+ UART_PUT_DIV_HI(port, ((quot & 0xf00) >> 8));
-+
-+ UART_PUT_LCR(port, uart_mc);
-+// UART_PUT_LCR(port, 0x07); // ???? it is wired
-+ UART_PUT_MCR(port, 0x08);
-+ UART_PUT_FCR(port, 0x01);
-+ UART_PUT_IER(port, 0x07);
-+
-+ spin_unlock_irqrestore(&port->lock, flags);
-+}
-+
-+static int it8712_startup(struct uart_port *port)
-+{
-+ int retval, i;
-+ unsigned int regs;
-+
-+ //printk("it8712 startup : \n");
-+
-+ /*
-+ * Use iobase to store a pointer to info. We need this to start a
-+ * transmission as the tranmittr interrupt is only generated on
-+ * the transition to the idle state
-+ */
-+
-+ // regs = 0;
-+ // regs |= (IRQ_LPC_MASK);
-+ // *((volatile unsigned int *)IRQ_CLEAR(IO_ADDRESS(SL2312_INTERRUPT_BASE))) = regs;
-+
-+ /*
-+ * Allocate the IRQ
-+ */
-+ retval = request_irq(port->irq, it8712_int, SA_INTERRUPT, "it8712", port);
-+ if (retval)
-+ return retval;
-+
-+ //printk("Init LPC int...........\n");
-+ /* setup interrupt controller */
-+ regs = *((volatile unsigned int *)IRQ_TMODE(IO_ADDRESS(SL2312_INTERRUPT_BASE)));
-+ regs &= ~(IRQ_LPC_MASK);
-+ *((volatile unsigned int *)IRQ_TMODE(IO_ADDRESS(SL2312_INTERRUPT_BASE))) = regs;
-+ regs = *((volatile unsigned int *)IRQ_TLEVEL(IO_ADDRESS(SL2312_INTERRUPT_BASE)));
-+ regs &= ~(IRQ_LPC_MASK);
-+ *((volatile unsigned int *)IRQ_TLEVEL(IO_ADDRESS(SL2312_INTERRUPT_BASE))) = regs;
-+ *((volatile unsigned int *)IRQ_MASK(IO_ADDRESS(SL2312_INTERRUPT_BASE))) |= (unsigned int)(IRQ_LPC_MASK);
-+
-+ LPC_SERIAL_IRQ_POLARITY = 0x10; //0x10; //0x02;
-+ LPC_SERIAL_IRQ_TRITYPE = 0x10; //0x10;//
-+ LPC_SERIAL_IRQ_ENABLE = 0x10;
-+
-+ LPC_BUS_CTRL = 0xc0;
-+ LPC_SERIAL_IRQ_CTRL = 0xc0;
-+ for(i=0;i<1000;i++) ;
-+ LPC_SERIAL_IRQ_CTRL = 0x80;
-+ /*
-+ * Finally, enable interrupts. Use the TII interrupt to minimise
-+ * the number of interrupts generated. If higher performance is
-+ * needed, consider using the TI interrupt with a suitable FIFO
-+ * threshold
-+ */
-+ //UART_PUT_IER(port, (UART_IER_RDI|UART_IER_THRI));
-+ UART_PUT_IER(port, (UART_IER_RDI|UART_IER_THRI|UART_IER_RLSI));//middle
-+
-+ return 0;
-+}
-+
-+static void it8712_shutdown(struct uart_port *port)
-+{
-+ //printk("it8712 shutdown : \n");
-+
-+ /*
-+ * disable all interrupts, disable the port
-+ */
-+ UART_PUT_IER(port, 0x0);
-+
-+ /* disable break condition and fifos */
-+// UART_PUT_MCR(port, (UART_GET_MCR(port)&UART_MCR_MASK));
-+
-+ /*
-+ * Free the interrupt
-+ */
-+ free_irq(port->irq, port);
-+}
-+
-+static const char *it8712_type(struct uart_port *port)
-+{
-+ return port->type == PORT_IT8712 ? "IT8712" : NULL;
-+}
-+
-+/*
-+ * Release the memory region(s) being used by 'port'
-+ */
-+static void it8712_release_port(struct uart_port *port)
-+{
-+// printk("it8712 release port : \n");
-+
-+ release_mem_region(port->mapbase, UART_PORT_SIZE);
-+}
-+
-+/*
-+ * Request the memory region(s) being used by 'port'
-+ */
-+static int it8712_request_port(struct uart_port *port)
-+{
-+ return request_mem_region(port->mapbase, UART_PORT_SIZE,
-+ "serial_it8712") != NULL ? 0 : -EBUSY;
-+}
-+
-+/*
-+ * Configure/autoconfigure the port.
-+ */
-+static void it8712_config_port(struct uart_port *port, int flags)
-+{
-+
-+ if (flags & UART_CONFIG_TYPE) {
-+ if (it8712_request_port(port) == 0)
-+ port->type = PORT_IT8712;
-+ }
-+}
-+
-+/*
-+ * verify the new serial_struct (for TIOCSSERIAL).
-+ */
-+static int it8712_verify_port(struct uart_port *port, struct serial_struct *ser)
-+{
-+ int ret = 0;
-+
-+ if (ser->type != PORT_UNKNOWN && ser->type != PORT_UART00)
-+ ret = -EINVAL;
-+ if (ser->irq < 0 || ser->irq >= NR_IRQS)
-+ ret = -EINVAL;
-+ if (ser->baud_base < 9600)
-+ ret = -EINVAL;
-+ return ret;
-+}
-+
-+static struct uart_ops it8712_pops = {
-+ .tx_empty = it8712_tx_empty,
-+ .set_mctrl = it8712_set_mctrl_null,
-+ .get_mctrl = it8712_get_mctrl,
-+ .stop_tx = it8712_stop_tx,
-+ .start_tx = it8712_start_tx,
-+ .stop_rx = it8712_stop_rx,
-+ .enable_ms = it8712_enable_ms,
-+ .break_ctl = it8712_break_ctl,
-+ .startup = it8712_startup,
-+ .shutdown = it8712_shutdown,
-+ .set_termios = it8712_set_termios,
-+ .type = it8712_type,
-+ .release_port = it8712_release_port,
-+ .request_port = it8712_request_port,
-+ .config_port = it8712_config_port,
-+ .verify_port = it8712_verify_port,
-+};
-+
-+#ifdef CONFIG_ARCH_SL2312
-+
-+static struct uart_port it8712_ports[UART_NR] = {
-+ {
-+ membase: (void *)0,
-+ mapbase: 0,
-+ iotype: SERIAL_IO_MEM,
-+ irq: 0,
-+ uartclk: UART_CLK/2,
-+ fifosize: 16,
-+ ops: &it8712_pops,
-+ flags: ASYNC_BOOT_AUTOCONF,
-+ }
-+};
-+
-+#endif
-+
-+#ifdef CONFIG_SERIAL_IT8712_CONSOLE
-+#ifdef used_and_not_const_char_pointer
-+static int it8712_console_read(struct uart_port *port, char *s, u_int count)
-+{
-+ unsigned int status;
-+ int c;
-+#ifdef DEBUG
-+ printk("it8712_console_read() called\n");
-+#endif
-+
-+ c = 0;
-+ while (c < count) {
-+ status = UART_GET_LSR(port);
-+ if (UART_RX_DATA(status)) {
-+ *s++ = UART_GET_CHAR(port);
-+ c++;
-+ } else {
-+ // nothing more to get, return
-+ return c;
-+ }
-+ }
-+ // return the count
-+ return c;
-+}
-+#endif
-+static void it8712_console_write(struct console *co, const char *s, unsigned count)
-+{
-+#ifdef CONFIG_ARCH_SL2312
-+ struct uart_port *port = it8712_ports + co->index;
-+ unsigned int status, old_ies;
-+ int i;
-+
-+ /*
-+ * First save the CR then disable the interrupts
-+ */
-+ old_ies = UART_GET_IER(port);
-+ //if(old_ies!=7)
-+ //{
-+ //
-+ // printk("old_ies = %x\n",old_ies);
-+ // old_ies = 7;
-+ //}
-+ UART_PUT_IER(port,0x0);
-+
-+ /*
-+ * Now, do each character
-+ */
-+ for (i = 0; i < count; i++) {
-+ do {
-+ status = UART_GET_LSR(port);
-+ } while (!UART_TX_READY(status));
-+ UART_PUT_CHAR(port, s[i]);
-+ if (s[i] == '\n') {
-+ do {
-+ status = UART_GET_LSR(port);
-+ } while (!UART_TX_READY(status));
-+ UART_PUT_CHAR(port, '\r');
-+ }
-+ }
-+
-+ /*
-+ * Finally, wait for transmitter to become empty
-+ * and restore the IES
-+ */
-+ do {
-+ status = UART_GET_LSR(port);
-+ } while (!(status&UART_LSR_THRE));
-+ UART_PUT_IER(port, old_ies);
-+#endif
-+}
-+
-+static void /*__init*/ it8712_console_get_options(struct uart_port *port, int *baud, int *parity, int *bits)
-+{
-+ //printk("it8712 console get options : \n");
-+
-+ u_int uart_mc, quot;
-+ uart_mc= UART_GET_MCR(port);
-+
-+ *parity = 'n';
-+ if (uart_mc & UART_LCR_PARITY) {
-+ if (uart_mc & UART_LCR_EVEN)
-+ *parity = 'e';
-+ else
-+ *parity = 'o';
-+ }
-+
-+ switch (uart_mc & UART_LCR_MSK){
-+
-+ case UART_LCR_WLEN5:
-+ *bits = 5;
-+ break;
-+ case UART_LCR_WLEN6:
-+ *bits = 6;
-+ break;
-+ case UART_LCR_WLEN7:
-+ *bits = 7;
-+ break;
-+ case UART_LCR_WLEN8:
-+ *bits = 8;
-+ break;
-+ }
-+ UART_PUT_MCR(port,UART_LCR_DLAB);
-+ quot = UART_GET_DIV_LO(port) | (UART_GET_DIV_HI(port) << 8);
-+ UART_PUT_MCR(port,uart_mc);
-+ *baud = (port->uartclk / (16 *quot));
-+}
-+
-+static int __init it8712_console_setup(struct console *co, char *options)
-+{
-+ struct uart_port *port;
-+ int baud = 38400;
-+ int bits = 8;
-+ int parity = 'n';
-+ int flow= 'n';
-+ int base;//, irq;
-+ int i ;
-+
-+ printk("it8712 console setup : \n");
-+
-+ LPCSetConfig(0, 0x02, 0x01);
-+ LPCSetConfig(LDN_SERIAL1, 0x30, 0x1);
-+ LPCSetConfig(LDN_SERIAL1, 0x23, 0x0);
-+ base = IT8712_IO_BASE;
-+ base += ((LPCGetConfig(LDN_SERIAL1, 0x60) << 8) + LPCGetConfig(LDN_SERIAL1, 0x61));
-+ it8712_ports[0].mapbase = base;
-+ it8712_ports[0].membase = (void *)IO_ADDRESS(base);
-+ it8712_ports[0].irq = IRQ_LPC_OFFSET;
-+ // irq = LPCGetConfig(LDN_SERIAL1, 0x70);
-+ //it8712_ports[0].irq += irq;
-+
-+ //printk("it8712 irq is %x \n", it8712_ports[0].irq);
-+
-+ // setup LPC Host 'quiet mode'
-+ //*((volatile unsigned int *)IO_ADDRESS((SL2312_LPC_HOST_BASE+0x04))) |= LPC_HOST_CONTINUE_MODE ;
-+ //for(i=0;i<1000;i++) ; // delay
-+ //*((volatile unsigned int *)IO_ADDRESS((SL2312_LPC_HOST_BASE+0x04))) &= ~(LPC_HOST_CONTINUE_MODE) ;
-+ LPC_BUS_CTRL = 0xc0;
-+ LPC_SERIAL_IRQ_CTRL = 0xc0;
-+ for(i=0;i<1000;i++) ;
-+ LPC_SERIAL_IRQ_CTRL = 0x80;
-+
-+#ifdef CONFIG_ARCH_SL2312
-+ /*
-+ * Check whether an invalid uart number has been specified, and
-+ * if so, search for the first available port that does have
-+ * console support.
-+ */
-+ port = uart_get_console(it8712_ports,IT8712_NO_PORTS,co);
-+#else
-+ return -ENODEV;
-+#endif
-+
-+ if (options)
-+ uart_parse_options(options, &baud, &parity, &bits, &flow);
-+ else
-+ it8712_console_get_options(port, &baud, &parity, &bits);
-+
-+ return uart_set_options(port, co, baud, parity, bits, flow);
-+}
-+
-+extern struct uart_driver it8712_reg;
-+static struct console it8712_console = {
-+ .name = SERIAL_IT8712_NAME,
-+ .write = it8712_console_write,
-+ .device = uart_console_device,
-+ .setup = it8712_console_setup,
-+ .flags = CON_PRINTBUFFER,
-+ .index = 0,
-+ .data = &it8712_reg,
-+};
-+
-+static int __init it8712_console_init(void)
-+{
-+ register_console(&it8712_console);
-+ return 0;
-+}
-+
-+console_initcall(it8712_console_init);
-+
-+#define IT8712_CONSOLE &it8712_console
-+#else
-+#define IT8712_CONSOLE NULL
-+#endif
-+
-+static struct uart_driver it8712_reg = {
-+ .owner = NULL,
-+ .driver_name = SERIAL_IT8712_NAME,
-+ .dev_name = SERIAL_IT8712_NAME,
-+ .major = SERIAL_IT8712_MAJOR,
-+ .minor = SERIAL_IT8712_MINOR,
-+ .nr = UART_NR,
-+ .cons = IT8712_CONSOLE,
-+};
-+
-+static int __init it8712_init(void)
-+{
-+ int result;
-+ //printk("serial_it8712: it871212_init \n");
-+
-+
-+ result = uart_register_driver(&it8712_reg);
-+ if(result)
-+ return result;
-+ result = uart_add_one_port(&it8712_reg, &it8712_ports[0]);
-+
-+ return result;
-+
-+}
-+
-+
-+__initcall(it8712_init);
---- /dev/null
-+++ b/drivers/serial/it8712.h
-@@ -0,0 +1,135 @@
-+#define UART_RX 0 /* In: Receive buffer (DLAB=0) */
-+#define UART_TX 0 /* Out: Transmit buffer (DLAB=0) */
-+#define UART_DLL 0 /* Out: Divisor Latch Low (DLAB=1) */
-+#define UART_TRG 0 /* (LCR=BF) FCTR bit 7 selects Rx or Tx
-+ * In: Fifo count
-+ * Out: Fifo custom trigger levels
-+ * XR16C85x only */
-+
-+#define UART_DLM 1 /* Out: Divisor Latch High (DLAB=1) */
-+#define UART_IER 1 /* Out: Interrupt Enable Register */
-+#define UART_FCTR 1 /* (LCR=BF) Feature Control Register
-+ * XR16C85x only */
-+
-+#define UART_IIR 2 /* In: Interrupt ID Register */
-+#define UART_FCR 2 /* Out: FIFO Control Register */
-+#define UART_EFR 2 /* I/O: Extended Features Register */
-+ /* (DLAB=1, 16C660 only) */
-+
-+#define UART_LCR 3 /* Out: Line Control Register */
-+#define UART_MCR 4 /* Out: Modem Control Register */
-+#define UART_LSR 5 /* In: Line Status Register */
-+#define UART_MSR 6 /* In: Modem Status Register */
-+#define UART_SCR 7 /* I/O: Scratch Register */
-+#define UART_EMSR 7 /* (LCR=BF) Extended Mode Select Register
-+ * FCTR bit 6 selects SCR or EMSR
-+ * XR16c85x only */
-+
-+/*
-+ * These are the definitions for the FIFO Control Register
-+ * (16650 only)
-+ */
-+#define UART_FCR_ENABLE_FIFO 0x01 /* Enable the FIFO */
-+#define UART_FCR_CLEAR_RCVR 0x02 /* Clear the RCVR FIFO */
-+#define UART_FCR_CLEAR_XMIT 0x04 /* Clear the XMIT FIFO */
-+#define UART_FCR_DMA_SELECT 0x08 /* For DMA applications */
-+#define UART_FCR_TRIGGER_MASK 0xC0 /* Mask for the FIFO trigger range */
-+#define UART_FCR_TRIGGER_1 0x00 /* Mask for trigger set at 1 */
-+#define UART_FCR_TRIGGER_4 0x40 /* Mask for trigger set at 4 */
-+#define UART_FCR_TRIGGER_8 0x80 /* Mask for trigger set at 8 */
-+#define UART_FCR_TRIGGER_14 0xC0 /* Mask for trigger set at 14 */
-+/* 16650 redefinitions */
-+#define UART_FCR6_R_TRIGGER_8 0x00 /* Mask for receive trigger set at 1 */
-+#define UART_FCR6_R_TRIGGER_16 0x40 /* Mask for receive trigger set at 4 */
-+#define UART_FCR6_R_TRIGGER_24 0x80 /* Mask for receive trigger set at 8 */
-+#define UART_FCR6_R_TRIGGER_28 0xC0 /* Mask for receive trigger set at 14 */
-+#define UART_FCR6_T_TRIGGER_16 0x00 /* Mask for transmit trigger set at 16 */
-+#define UART_FCR6_T_TRIGGER_8 0x10 /* Mask for transmit trigger set at 8 */
-+#define UART_FCR6_T_TRIGGER_24 0x20 /* Mask for transmit trigger set at 24 */
-+#define UART_FCR6_T_TRIGGER_30 0x30 /* Mask for transmit trigger set at 30 */
-+/* TI 16750 definitions */
-+#define UART_FCR7_64BYTE 0x20 /* Go into 64 byte mode */
-+
-+/*
-+ * These are the definitions for the Line Control Register
-+ *
-+ * Note: if the word length is 5 bits (UART_LCR_WLEN5), then setting
-+ * UART_LCR_STOP will select 1.5 stop bits, not 2 stop bits.
-+ */
-+#define UART_LCR_DLAB 0x80 /* Divisor latch access bit */
-+#define UART_LCR_SBC 0x40 /* Set break control */
-+#define UART_LCR_SPAR 0x20 /* Stick parity (?) */
-+#define UART_LCR_EPAR 0x10 /* Even parity select */
-+#define UART_LCR_PARITY 0x08 /* Parity Enable */
-+#define UART_LCR_STOP 0x04 /* Stop bits: 0=1 stop bit, 1= 2 stop bits */
-+#define UART_LCR_WLEN5 0x00 /* Wordlength: 5 bits */
-+#define UART_LCR_WLEN6 0x01 /* Wordlength: 6 bits */
-+#define UART_LCR_WLEN7 0x02 /* Wordlength: 7 bits */
-+#define UART_LCR_WLEN8 0x03 /* Wordlength: 8 bits */
-+#define UART_LCR_EVEN 0x18 /* Even parity */
-+#define UART_LCR_ODD 0x08 /* Odd parity */
-+#define UART_LCR_MSK 0x03
-+/*
-+ * These are the definitions for the Line Status Register
-+ */
-+#define UART_LSR_DE 0x80 /* FIFO Data Error */
-+#define UART_LSR_TEMT 0x40 /* Transmitter empty */
-+#define UART_LSR_THRE 0x20 /* Transmit-hold-register empty */
-+#define UART_LSR_BI 0x10 /* Break interrupt indicator */
-+#define UART_LSR_FE 0x08 /* Frame error indicator */
-+#define UART_LSR_PE 0x04 /* Parity error indicator */
-+#define UART_LSR_OE 0x02 /* Overrun error indicator */
-+#define UART_LSR_DR 0x01 /* Receiver data ready */
-+
-+/*
-+ * These are the definitions for the Interrupt Identification Register
-+ */
-+#define UART_IIR_NO_INT 0x01 /* No interrupts pending */
-+#define UART_IIR_ID 0x06 /* Mask for the interrupt ID */
-+
-+#define UART_IIR_MSI 0x00 /* Modem status interrupt */
-+#define UART_IIR_THRI 0x02 /* Transmitter holding register empty */
-+#define UART_IIR_RDI 0x04 /* Receiver data interrupt */
-+#define UART_IIR_RLSI 0x06 /* Receiver line status interrupt */
-+#define UART_IIR_RCTO 0x0c /* Receiver character timeout interrupt */
-+/*
-+ * These are the definitions for the Interrupt Enable Register
-+ */
-+#define UART_IER_MSI 0x08 /* Enable Modem status interrupt */
-+#define UART_IER_RLSI 0x04 /* Enable receiver line status interrupt */
-+#define UART_IER_THRI 0x02 /* Enable Transmitter holding register int. */
-+#define UART_IER_RDI 0x01 /* Enable receiver data interrupt */
-+/*
-+ * Sleep mode for ST16650 and TI16750.
-+ * Note that for 16650, EFR-bit 4 must be selected as well.
-+ */
-+#define UART_IERX_SLEEP 0x10 /* Enable sleep mode */
-+
-+/*
-+ * These are the definitions for the Modem Control Register
-+ */
-+#define UART_MCR_LOOP 0x10 /* Enable loopback test mode */
-+#define UART_MCR_OUT2 0x08 /* Out2 complement */
-+#define UART_MCR_OUT1 0x04 /* Out1 complement */
-+#define UART_MCR_RTS 0x02 /* RTS complement */
-+#define UART_MCR_DTR 0x01 /* DTR complement */
-+
-+/*
-+ * These are the definitions for the Modem Status Register
-+ */
-+#define UART_MSR_DCD 0x80 /* Data Carrier Detect */
-+#define UART_MSR_RI 0x40 /* Ring Indicator */
-+#define UART_MSR_DSR 0x20 /* Data Set Ready */
-+#define UART_MSR_CTS 0x10 /* Clear to Send */
-+#define UART_MSR_DDCD 0x08 /* Delta DCD */
-+#define UART_MSR_TERI 0x04 /* Trailing edge ring indicator */
-+#define UART_MSR_DDSR 0x02 /* Delta DSR */
-+#define UART_MSR_DCTS 0x01 /* Delta CTS */
-+#define UART_MSR_ANY_DELTA 0x0F /* Any of the delta bits! */
-+
-+#define UART_PARITY_NONE 0x00
-+#define UART_PARITY_ODD 0x01
-+#define UART_PARITY_EVEN 0x02
-+
-+
-+
---- /dev/null
-+++ b/drivers/serial/serial_it8712.c
-@@ -0,0 +1,876 @@
-+/*
-+ * linux/drivers/char/serial_uart00.c
-+ *
-+ * Driver for UART00 serial ports
-+ *
-+ * Based on drivers/char/serial_amba.c, by ARM Limited &
-+ * Deep Blue Solutions Ltd.
-+ * Copyright 2001 Altera Corporation
-+ *
-+ * 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
-+ *
-+ * $Id: serial_it8712.c,v 1.1.1.1 2006/04/03 08:41:00 amos_lee Exp $
-+ *
-+ */
-+#include <linux/module.h>
-+
-+#include <linux/errno.h>
-+#include <linux/signal.h>
-+#include <linux/sched.h>
-+#include <linux/interrupt.h>
-+#include <linux/tty.h>
-+#include <linux/tty_flip.h>
-+#include <linux/major.h>
-+#include <linux/string.h>
-+#include <linux/fcntl.h>
-+#include <linux/ptrace.h>
-+#include <linux/ioport.h>
-+#include <linux/mm.h>
-+#include <linux/slab.h>
-+#include <linux/init.h>
-+#include <linux/circ_buf.h>
-+#include <linux/serial.h>
-+#include <linux/console.h>
-+#include <linux/sysrq.h>
-+
-+#include <asm/system.h>
-+#include <asm/io.h>
-+#include <asm/irq.h>
-+#include <asm/uaccess.h>
-+#include <asm/bitops.h>
-+#include <asm/sizes.h>
-+
-+#if defined(CONFIG_SERIAL_IT8712_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-+#define SUPPORT_SYSRQ
-+#endif
-+
-+#include <linux/serial_core.h>
-+#include <asm/arch/sl2312.h>
-+#include <asm/arch/int_ctrl.h>
-+#include <asm/arch/it8712.h>
-+#include "serial_it8712.h"
-+
-+//#define DEBUG 1
-+#define UART_NR 1
-+
-+#define SERIAL_IT8712_NAME "ttySI"
-+#define SERIAL_IT8712_MAJOR 204
-+#define SERIAL_IT8712_MINOR 41 /* Temporary - will change in future */
-+#define SERIAL_IT8712_NR UART_NR
-+#define UART_PORT_SIZE 0x50
-+
-+#define CALLOUT_IT8712_NAME "cuaslI"
-+#define CALLOUT_IT8712_MAJOR 205
-+#define CALLOUT_IT8712_MINOR 41 /* Temporary - will change in future */
-+#define CALLOUT_IT8712_NR UART_NR
-+#define LPC_HOST_CONTINUE_MODE 0x00000040
-+
-+#define IT8712_NO_PORTS UART_NR
-+
-+static struct tty_driver normal, callout;
-+static struct tty_struct *it8712_table[UART_NR];
-+static struct termios *it8712_termios[UART_NR], *it8712_termios_locked[UART_NR];
-+static struct console it8712_console;
-+
-+#define IT8712_ISR_PASS_LIMIT 256
-+
-+/*
-+ * Access macros for the SL2312 UARTs
-+ */
-+#define UART_GET_INT_STATUS(p) (inb(((p)->membase+UART_IIR)) & 0x0F) // interrupt identification
-+#define UART_PUT_IER(p, c) outb(c,((p)->membase+UART_IER)) // interrupt enable
-+#define UART_GET_IER(p) inb(((p)->membase+UART_IER))
-+#define UART_PUT_CHAR(p, c) outb(c,((p)->membase+UART_TX)) // transmitter holding
-+#define UART_GET_CHAR(p) inb(((p)->membase+UART_RX)) // receive buffer
-+#define UART_GET_LSR(p) inb(((p)->membase+UART_LSR)) // line status
-+#define UART_GET_MSR(p) inb(((p)->membase+UART_MSR)) // modem status
-+#define UART_GET_MCR(p) inb(((p)->membase+UART_MCR)) // modem control
-+#define UART_PUT_MCR(p, c) outb(c,((p)->membase+UART_MCR))
-+#define UART_GET_LCR(p) inb(((p)->membase+UART_LCR)) // mode control
-+#define UART_PUT_LCR(p, c) outb(c,((p)->membase+UART_LCR))
-+#define UART_PUT_FCR(p, c) outb(c,((p)->membase+UART_FCR)) // fifo control
-+#define UART_GET_DIV_HI(p) inb(((p)->membase+UART_DLM))
-+#define UART_PUT_DIV_HI(p, c) outb(c,((p)->membase+UART_DLM))
-+#define UART_GET_DIV_LO(p) inb(((p)->membase+UART_DLL))
-+#define UART_PUT_DIV_LO(p, c) outb(c,((p)->membase+UART_DLL))
-+#define UART_PUT_MDR(p, c) outb(c,UART_MDR((p)->membase))
-+#define UART_RX_DATA(s) ((s) & UART_LSR_DR)
-+#define UART_TX_READY(s) ((s) & UART_LSR_THRE)
-+
-+static void it8712_stop_tx(struct uart_port *port, u_int from_tty)
-+{
-+ unsigned int reg;
-+
-+// printk("it8712 stop tx : \n");
-+ reg = UART_GET_IER(port);
-+ reg &= ~(UART_IER_THRI);
-+ UART_PUT_IER(port, reg);
-+}
-+
-+static void it8712_stop_rx(struct uart_port *port)
-+{
-+ unsigned int reg;
-+
-+// printk("it8712 stop rx : \n");
-+ reg = UART_GET_IER(port);
-+ reg &= ~(UART_IER_RDI);
-+ UART_PUT_IER(port, reg);
-+
-+}
-+
-+static void it8712_enable_ms(struct uart_port *port)
-+{
-+ unsigned int reg;
-+
-+// printk("it8712 enable ms : \n");
-+
-+ reg = UART_GET_IER(port);
-+ reg |= (UART_IER_MSI);
-+ UART_PUT_IER(port, reg);
-+
-+}
-+
-+static void
-+it8712_rx_chars(struct uart_info *info, struct pt_regs *regs)
-+{
-+ struct tty_struct *tty = info->tty;
-+ unsigned int status, mask, ch, flg, ignored = 0;
-+ struct uart_port *port = info->port;
-+
-+ // printk("it8712_rx_chars : \n");
-+ status = UART_GET_LSR(port);
-+ while (UART_RX_DATA(status)) {
-+
-+ /*
-+ * We need to read rds before reading the
-+ * character from the fifo
-+ */
-+ ch = UART_GET_CHAR(port);
-+ port->icount.rx++;
-+
-+ if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-+ goto ignore_char;
-+
-+ flg = TTY_NORMAL;
-+
-+ /*
-+ * Note that the error handling code is
-+ * out of the main execution path
-+ */
-+
-+ if (status & (UART_LSR_OE|UART_LSR_PE|UART_LSR_FE|UART_LSR_BI|UART_LSR_DE))
-+ goto handle_error;
-+ if (uart_handle_sysrq_char(info, ch, regs))
-+ goto ignore_char;
-+
-+ error_return:
-+ *tty->flip.flag_buf_ptr++ = flg;
-+ *tty->flip.char_buf_ptr++ = ch;
-+ tty->flip.count++;
-+ ignore_char:
-+ status = UART_GET_LSR(port);
-+ } // end of while
-+out:
-+ tty_flip_buffer_push(tty);
-+ return;
-+
-+handle_error:
-+ if (status & UART_LSR_BI) {
-+ status &= ~(UART_LSR_FE);
-+ port->icount.brk++;
-+
-+#ifdef SUPPORT_SYSRQ
-+ if (uart_handle_break(info, &it8712_console))
-+ goto ignore_char;
-+#endif
-+ } else if (status & UART_LSR_PE)
-+ port->icount.parity++;
-+ else if (status & UART_LSR_FE)
-+ port->icount.frame++;
-+
-+ if (status & UART_LSR_OE)
-+ port->icount.overrun++;
-+
-+ if (status & port->ignore_status_mask) {
-+ if (++ignored > 100)
-+ goto out;
-+ goto ignore_char;
-+ }
-+
-+ mask = status & port->read_status_mask;
-+
-+ if (mask & UART_LSR_BI)
-+ flg = TTY_BREAK;
-+ else if (mask & UART_LSR_PE)
-+ flg = TTY_PARITY;
-+ else if (mask & UART_LSR_FE)
-+ flg = TTY_FRAME;
-+
-+ if (status & UART_LSR_OE) {
-+ /*
-+ * CHECK: does overrun affect the current character?
-+ * ASSUMPTION: it does not.
-+ */
-+ *tty->flip.flag_buf_ptr++ = flg;
-+ *tty->flip.char_buf_ptr++ = ch;
-+ tty->flip.count++;
-+ if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-+ goto ignore_char;
-+ ch = 0;
-+ flg = TTY_OVERRUN;
-+ }
-+#ifdef SUPPORT_SYSRQ
-+ info->sysrq = 0;
-+#endif
-+ goto error_return;
-+}
-+
-+static void it8712_tx_chars(struct uart_info *info)
-+{
-+ int count;
-+ struct uart_port *port=info->port;
-+
-+ if (port->x_char) {
-+ while(!(UART_GET_LSR(port)&UART_LSR_THRE));
-+ UART_PUT_CHAR(port, port->x_char);
-+ port->icount.tx++;
-+ port->x_char = 0;
-+
-+ return;
-+ }
-+ if (info->xmit.head == info->xmit.tail
-+ || info->tty->stopped
-+ || info->tty->hw_stopped) {
-+ it8712_stop_tx(info->port, 0);
-+ return;
-+ }
-+
-+ count = port->fifosize >> 1;
-+ do {
-+ while(!(UART_GET_LSR(port)&UART_LSR_THRE));
-+ UART_PUT_CHAR(port, info->xmit.buf[info->xmit.tail]);
-+ info->xmit.tail = (info->xmit.tail + 1) & (UART_XMIT_SIZE - 1);
-+ port->icount.tx++;
-+ if (info->xmit.head == info->xmit.tail)
-+ break;
-+ } while (--count > 0);
-+
-+ if (CIRC_CNT(info->xmit.head,
-+ info->xmit.tail,
-+ UART_XMIT_SIZE) < WAKEUP_CHARS)
-+ uart_event(info, EVT_WRITE_WAKEUP);
-+
-+ if (info->xmit.head == info->xmit.tail)
-+ it8712_stop_tx(info->port, 0);
-+}
-+
-+static void it8712_start_tx(struct uart_port *port, u_int nonempty, u_int from_tty)
-+{
-+ unsigned int reg;
-+ struct uart_info *info=(struct uart_info*)(port->iobase);
-+
-+// printk("it8712 start tx : \n");
-+ reg = UART_GET_IER(port);
-+ reg |= (UART_IER_THRI);
-+ UART_PUT_IER(port, reg);
-+ it8712_tx_chars(info);
-+}
-+
-+static void it8712_modem_status(struct uart_info *info)
-+{
-+ unsigned int status;
-+ struct uart_icount *icount = &info->port->icount;
-+
-+// printk("it8712 modem status : \n");
-+
-+ status = UART_GET_MSR(info->port);
-+
-+ if (!(status & (UART_MSR_DCTS | UART_MSR_DDSR |
-+ UART_MSR_TERI | UART_MSR_DDCD)))
-+ return;
-+
-+ if (status & UART_MSR_DCD) {
-+ icount->dcd++;
-+#ifdef CONFIG_HARD_PPS
-+ if ((info->flags & ASYNC_HARDPPS_CD) &&
-+ (status & UART_MSR_DCD_MSK))
-+ hardpps();
-+#endif
-+ if (info->flags & ASYNC_CHECK_CD) {
-+ if (status & UART_MSR_DCD)
-+ wake_up_interruptible(&info->open_wait);
-+ else if (!((info->flags & ASYNC_CALLOUT_ACTIVE) &&
-+ (info->flags & ASYNC_CALLOUT_NOHUP))) {
-+ if (info->tty)
-+ tty_hangup(info->tty);
-+ }
-+ }
-+ }
-+
-+ if (status & UART_MSR_DDSR)
-+ icount->dsr++;
-+
-+ if (status & UART_MSR_DCTS) {
-+ icount->cts++;
-+
-+ if (info->flags & ASYNC_CTS_FLOW) {
-+ status &= UART_MSR_CTS;
-+
-+ if (info->tty->hw_stopped) {
-+ if (status) {
-+ info->tty->hw_stopped = 0;
-+ info->ops->start_tx(info->port, 1, 0);
-+ uart_event(info, EVT_WRITE_WAKEUP);
-+ }
-+ } else {
-+ if (!status) {
-+ info->tty->hw_stopped = 1;
-+ info->ops->stop_tx(info->port, 0);
-+ }
-+ }
-+ }
-+ }
-+ wake_up_interruptible(&info->delta_msr_wait);
-+
-+}
-+
-+static void it8712_int(int irq, void *dev_id, struct pt_regs *regs)
-+{
-+ struct uart_info *info = dev_id;
-+ unsigned int status, pass_counter = 0;
-+
-+ status = UART_GET_INT_STATUS(info->port);
-+ do {
-+// printk("it8712_int: status %x \n", status);
-+ switch(status)
-+ {
-+ case UART_IIR_RDI:
-+ case UART_IIR_RLSI:
-+ case UART_IIR_RCTO:
-+ it8712_rx_chars(info, regs);
-+ break;
-+ case UART_IIR_THRI:
-+ it8712_tx_chars(info);
-+ break;
-+ case UART_IIR_MSI:
-+ it8712_modem_status(info);
-+ break;
-+ default:
-+ break;
-+ }
-+ if (pass_counter++ > IT8712_ISR_PASS_LIMIT)
-+ break;
-+
-+ status = UART_GET_INT_STATUS(info->port);
-+ } while (status);
-+}
-+
-+static u_int it8712_tx_empty(struct uart_port *port)
-+{
-+// printk("it8712 tx empty : \n");
-+
-+ return ((UART_GET_LSR(port) & UART_LSR_THRE)? TIOCSER_TEMT : 0);
-+}
-+
-+static u_int it8712_get_mctrl(struct uart_port *port)
-+{
-+ unsigned int result = 0;
-+ unsigned int status;
-+
-+// printk("it8712 get mctrl : \n");
-+
-+ status = UART_GET_MSR(port);
-+ if (status & UART_MSR_DCD)
-+ result |= TIOCM_CAR;
-+ if (status & UART_MSR_DSR)
-+ result |= TIOCM_DSR;
-+ if (status & UART_MSR_CTS)
-+ result |= TIOCM_CTS;
-+ if (status & UART_MSR_RI)
-+ result |= TIOCM_RI;
-+
-+ return result;
-+}
-+
-+static void it8712_set_mctrl_null(struct uart_port *port, u_int mctrl)
-+{
-+}
-+
-+static void it8712_break_ctl(struct uart_port *port, int break_state)
-+{
-+ unsigned int lcr;
-+
-+// printk("it8712 break ctl : \n");
-+
-+ lcr = UART_GET_LCR(port);
-+ if (break_state == -1)
-+ lcr |= UART_LCR_SBC;
-+ else
-+ lcr &= ~UART_LCR_SBC;
-+ UART_PUT_LCR(port, lcr);
-+}
-+
-+static inline u_int uart_calculate_quot(struct uart_info *info, u_int baud)
-+{
-+ u_int quot;
-+
-+ /* Special case: B0 rate */
-+ if (!baud)
-+ baud = 9600;
-+
-+ quot = (info->port->uartclk/(16 * baud)) ;
-+
-+ return quot;
-+}
-+static void it8712_change_speed(struct uart_port *port, u_int cflag, u_int iflag, u_int quot)
-+{
-+ u_int uart_mc=0, old_ier;
-+ unsigned long flags;
-+
-+#ifdef DEBUG
-+ printk("it8712_set_cflag(0x%x) called\n", cflag);
-+#endif
-+
-+
-+ /* byte size and parity */
-+ switch (cflag & CSIZE) {
-+ case CS5: uart_mc = UART_LCR_WLEN5; break;
-+ case CS6: uart_mc = UART_LCR_WLEN6; break;
-+ case CS7: uart_mc = UART_LCR_WLEN7; break;
-+ default: uart_mc = UART_LCR_WLEN8; break; // CS8
-+ }
-+ if (cflag & CSTOPB)
-+ uart_mc|= UART_LCR_STOP;
-+ if (cflag & PARENB) {
-+ uart_mc |= UART_LCR_EVEN;
-+ if (!(cflag & PARODD))
-+ uart_mc |= UART_LCR_ODD;
-+ }
-+
-+ port->read_status_mask = UART_LSR_OE;
-+ if (iflag & INPCK)
-+ port->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-+ if (iflag & (BRKINT | PARMRK))
-+ port->read_status_mask |= UART_LSR_BI;
-+
-+ /*
-+ * Characters to ignore
-+ */
-+ port->ignore_status_mask = 0;
-+ if (iflag & IGNPAR)
-+ port->ignore_status_mask |= UART_LSR_FE | UART_LSR_PE;
-+ if (iflag & IGNBRK) {
-+ port->ignore_status_mask |= UART_LSR_BI;
-+ /*
-+ * If we're ignoring parity and break indicators,
-+ * ignore overruns to (for real raw support).
-+ */
-+ if (iflag & IGNPAR)
-+ port->ignore_status_mask |= UART_LSR_OE;
-+ }
-+
-+ /* first, disable everything */
-+ save_flags(flags); cli();
-+ old_ier = UART_GET_IER(port);
-+
-+ if ((port->flags & ASYNC_HARDPPS_CD) ||
-+ (cflag & CRTSCTS) || !(cflag & CLOCAL))
-+ old_ier |= UART_IER_MSI;
-+
-+ /* Set baud rate */
-+ quot = quot / 13;
-+ UART_PUT_LCR(port, UART_LCR_DLAB);
-+ UART_PUT_DIV_LO(port, (quot & 0xff));
-+ UART_PUT_DIV_HI(port, ((quot & 0xf00) >> 8));
-+
-+ UART_PUT_LCR(port, uart_mc);
-+// UART_PUT_LCR(port, 0x07); // ???? it is wired
-+ UART_PUT_MCR(port, 0x08);
-+ UART_PUT_FCR(port, 0x01);
-+ UART_PUT_IER(port, 0x05);
-+
-+ restore_flags(flags);
-+}
-+
-+static int it8712_startup(struct uart_port *port, struct uart_info *info)
-+{
-+ int retval;
-+ unsigned int regs;
-+
-+// printk("it8712 startup : \n");
-+
-+ /*
-+ * Use iobase to store a pointer to info. We need this to start a
-+ * transmission as the tranmittr interrupt is only generated on
-+ * the transition to the idle state
-+ */
-+
-+ port->iobase=(u_int)info;
-+
-+ /*
-+ * Allocate the IRQ
-+ */
-+ retval = request_irq(port->irq, it8712_int, SA_INTERRUPT, "it8712", info);
-+ if (retval)
-+ return retval;
-+
-+ /* setup interrupt controller */
-+ regs = *((volatile unsigned int *)IRQ_TMODE(IO_ADDRESS(SL2312_INTERRUPT_BASE)));
-+ regs |= (IRQ_SERIRQ0_MASK);
-+ *((volatile unsigned int *)IRQ_TMODE(IO_ADDRESS(SL2312_INTERRUPT_BASE))) = regs;
-+ regs = *((volatile unsigned int *)IRQ_LEVEL(IO_ADDRESS(SL2312_INTERRUPT_BASE)));
-+ regs &= ~(IRQ_SERIRQ0_MASK);
-+ *((volatile unsigned int *)IRQ_LEVEL(IO_ADDRESS(SL2312_INTERRUPT_BASE))) = regs;
-+ *((volatile unsigned int *)IRQ_MASK(IO_ADDRESS(SL2312_INTERRUPT_BASE))) |= (unsigned int)(IRQ_SERIRQ0_MASK);
-+
-+ /*
-+ * Finally, enable interrupts. Use the TII interrupt to minimise
-+ * the number of interrupts generated. If higher performance is
-+ * needed, consider using the TI interrupt with a suitable FIFO
-+ * threshold
-+ */
-+ UART_PUT_IER(port, (UART_IER_RDI|UART_IER_THRI));
-+
-+ return 0;
-+}
-+
-+static void it8712_shutdown(struct uart_port *port, struct uart_info *info)
-+{
-+// printk("it8712 shutdown : \n");
-+
-+ /*
-+ * disable all interrupts, disable the port
-+ */
-+ UART_PUT_IER(port, 0x0);
-+
-+ /* disable break condition and fifos */
-+// UART_PUT_MCR(port, (UART_GET_MCR(port)&UART_MCR_MASK));
-+
-+ /*
-+ * Free the interrupt
-+ */
-+ free_irq(port->irq, info);
-+}
-+
-+static const char *it8712_type(struct uart_port *port)
-+{
-+ return port->type == PORT_IT8712 ? "IT8712" : NULL;
-+}
-+
-+/*
-+ * Release the memory region(s) being used by 'port'
-+ */
-+static void it8712_release_port(struct uart_port *port)
-+{
-+// printk("it8712 release port : \n");
-+
-+ release_mem_region(port->mapbase, UART_PORT_SIZE);
-+}
-+
-+/*
-+ * Request the memory region(s) being used by 'port'
-+ */
-+static int it8712_request_port(struct uart_port *port)
-+{
-+ return request_mem_region(port->mapbase, UART_PORT_SIZE,
-+ "serial_it8712") != NULL ? 0 : -EBUSY;
-+}
-+
-+/*
-+ * Configure/autoconfigure the port.
-+ */
-+static void it8712_config_port(struct uart_port *port, int flags)
-+{
-+
-+ if (flags & UART_CONFIG_TYPE) {
-+ if (it8712_request_port(port) == 0)
-+ port->type = PORT_IT8712;
-+ }
-+}
-+
-+/*
-+ * verify the new serial_struct (for TIOCSSERIAL).
-+ */
-+static int it8712_verify_port(struct uart_port *port, struct serial_struct *ser)
-+{
-+ int ret = 0;
-+
-+ if (ser->type != PORT_UNKNOWN && ser->type != PORT_UART00)
-+ ret = -EINVAL;
-+ if (ser->irq < 0 || ser->irq >= NR_IRQS)
-+ ret = -EINVAL;
-+ if (ser->baud_base < 9600)
-+ ret = -EINVAL;
-+ return ret;
-+}
-+
-+static struct uart_ops it8712_pops = {
-+ tx_empty: it8712_tx_empty,
-+ set_mctrl: it8712_set_mctrl_null,
-+ get_mctrl: it8712_get_mctrl,
-+ stop_tx: it8712_stop_tx,
-+ start_tx: it8712_start_tx,
-+ stop_rx: it8712_stop_rx,
-+ enable_ms: it8712_enable_ms,
-+ break_ctl: it8712_break_ctl,
-+ startup: it8712_startup,
-+ shutdown: it8712_shutdown,
-+ change_speed: it8712_change_speed,
-+ type: it8712_type,
-+ release_port: it8712_release_port,
-+ request_port: it8712_request_port,
-+ config_port: it8712_config_port,
-+ verify_port: it8712_verify_port,
-+};
-+
-+#ifdef CONFIG_ARCH_SL2312
-+
-+static struct uart_port it8712_ports[UART_NR] = {
-+ {
-+ membase: (void *)0,
-+ mapbase: 0,
-+ iotype: SERIAL_IO_MEM,
-+ irq: 0,
-+ uartclk: UART_CLK/2,
-+ fifosize: 16,
-+ ops: &it8712_pops,
-+ flags: ASYNC_BOOT_AUTOCONF,
-+ }
-+};
-+
-+#endif
-+
-+#ifdef CONFIG_SERIAL_IT8712_CONSOLE
-+#ifdef used_and_not_const_char_pointer
-+static int it8712_console_read(struct uart_port *port, char *s, u_int count)
-+{
-+ unsigned int status;
-+ int c;
-+#ifdef DEBUG
-+ printk("it8712_console_read() called\n");
-+#endif
-+
-+ c = 0;
-+ while (c < count) {
-+ status = UART_GET_LSR(port);
-+ if (UART_RX_DATA(status)) {
-+ *s++ = UART_GET_CHAR(port);
-+ c++;
-+ } else {
-+ // nothing more to get, return
-+ return c;
-+ }
-+ }
-+ // return the count
-+ return c;
-+}
-+#endif
-+static void it8712_console_write(struct console *co, const char *s, unsigned count)
-+{
-+#ifdef CONFIG_ARCH_SL2312
-+ struct uart_port *port = it8712_ports + co->index;
-+ unsigned int status, old_ies;
-+ int i;
-+
-+ /*
-+ * First save the CR then disable the interrupts
-+ */
-+ old_ies = UART_GET_IER(port);
-+ UART_PUT_IER(port,0x0);
-+
-+ /*
-+ * Now, do each character
-+ */
-+ for (i = 0; i < count; i++) {
-+ do {
-+ status = UART_GET_LSR(port);
-+ } while (!UART_TX_READY(status));
-+ UART_PUT_CHAR(port, s[i]);
-+ if (s[i] == '\n') {
-+ do {
-+ status = UART_GET_LSR(port);
-+ } while (!UART_TX_READY(status));
-+ UART_PUT_CHAR(port, '\r');
-+ }
-+ }
-+
-+ /*
-+ * Finally, wait for transmitter to become empty
-+ * and restore the IES
-+ */
-+ do {
-+ status = UART_GET_LSR(port);
-+ } while (!(status&UART_LSR_THRE));
-+ UART_PUT_IER(port, old_ies);
-+#endif
-+}
-+
-+static kdev_t it8712_console_device(struct console *co)
-+{
-+ return MKDEV(SERIAL_IT8712_MAJOR, SERIAL_IT8712_MINOR + co->index);
-+}
-+
-+static int it8712_console_wait_key(struct console *co)
-+{
-+#ifdef CONFIG_ARCH_SL2312
-+ struct uart_port *port = (it8712_ports + co->index);
-+ unsigned int status;
-+
-+ do {
-+ status = UART_GET_LSR(port);
-+ } while (!UART_RX_DATA(status));
-+ return UART_GET_CHAR(port);
-+#else
-+ return 0;
-+#endif
-+}
-+
-+static void /*__init*/ it8712_console_get_options(struct uart_port *port, int *baud, int *parity, int *bits)
-+{
-+ printk("it8712 console get options : \n");
-+
-+ u_int uart_mc, quot;
-+ uart_mc= UART_GET_MCR(port);
-+
-+ *parity = 'n';
-+ if (uart_mc & UART_LCR_PARITY) {
-+ if (uart_mc & UART_LCR_EVEN)
-+ *parity = 'e';
-+ else
-+ *parity = 'o';
-+ }
-+
-+ switch (uart_mc & UART_LCR_MSK){
-+
-+ case UART_LCR_WLEN5:
-+ *bits = 5;
-+ break;
-+ case UART_LCR_WLEN6:
-+ *bits = 6;
-+ break;
-+ case UART_LCR_WLEN7:
-+ *bits = 7;
-+ break;
-+ case UART_LCR_WLEN8:
-+ *bits = 8;
-+ break;
-+ }
-+ UART_PUT_MCR(port,UART_LCR_DLAB);
-+ quot = UART_GET_DIV_LO(port) | (UART_GET_DIV_HI(port) << 8);
-+ UART_PUT_MCR(port,uart_mc);
-+ *baud = (port->uartclk / (16 *quot));
-+}
-+
-+static int __init it8712_console_setup(struct console *co, char *options)
-+{
-+ struct uart_port *port;
-+ int baud = 38400;
-+ int bits = 8;
-+ int parity = 'n';
-+ int flow= 'n';
-+ int base, irq;
-+ int i ;
-+
-+// printk("it8712 console setup : \n");
-+
-+ LPCSetConfig(0, 0x02, 0x01);
-+ LPCSetConfig(LDN_SERIAL1, 0x30, 0x1);
-+ LPCSetConfig(LDN_SERIAL1, 0x23, 0x0);
-+ base = IT8712_IO_BASE;
-+ base += ((LPCGetConfig(LDN_SERIAL1, 0x60) << 8) + LPCGetConfig(LDN_SERIAL1, 0x61));
-+ it8712_ports[0].mapbase = base;
-+ it8712_ports[0].membase = IO_ADDRESS(base);
-+ it8712_ports[0].irq = IRQ_SERIRQ0_OFFSET;
-+ irq = LPCGetConfig(LDN_SERIAL1, 0x70);
-+ it8712_ports[0].irq += irq;
-+
-+ printk("it8712 irq is %x %x \n", it8712_ports[0].irq, irq);
-+
-+ // setup LPC Host 'quiet mode'
-+ *((volatile unsigned int *)IO_ADDRESS((SL2312_LPC_HOST_BASE+0x04))) |= LPC_HOST_CONTINUE_MODE ;
-+ for(i=0;i<1000;i++) ; // delay
-+ *((volatile unsigned int *)IO_ADDRESS((SL2312_LPC_HOST_BASE+0x04))) &= ~(LPC_HOST_CONTINUE_MODE) ;
-+
-+#ifdef CONFIG_ARCH_SL2312
-+ /*
-+ * Check whether an invalid uart number has been specified, and
-+ * if so, search for the first available port that does have
-+ * console support.
-+ */
-+ port = uart_get_console(it8712_ports,IT8712_NO_PORTS,co);
-+#else
-+ return -ENODEV;
-+#endif
-+
-+ if (options)
-+ uart_parse_options(options, &baud, &parity, &bits, &flow);
-+ else
-+ it8712_console_get_options(port, &baud, &parity, &bits);
-+
-+ return uart_set_options(port, co, baud, parity, bits, flow);
-+}
-+
-+static struct console it8712_console = {
-+ name: SERIAL_IT8712_NAME,
-+ write: it8712_console_write,
-+#ifdef used_and_not_const_char_pointer
-+ read: it8712_console_read,
-+#endif
-+ device: it8712_console_device,
-+// wait_key: it8712_console_wait_key,
-+ setup: it8712_console_setup,
-+ flags: (CON_PRINTBUFFER|CON_ENABLED),
-+ index: -1,
-+};
-+
-+void __init it8712_console_init(void)
-+{
-+ register_console(&it8712_console);
-+}
-+
-+#define IT8712_CONSOLE &it8712_console
-+#else
-+#define IT8712_CONSOLE NULL
-+#endif
-+
-+static struct uart_driver it8712_reg = {
-+ owner: NULL,
-+ normal_major: SERIAL_IT8712_MAJOR,
-+ normal_name: SERIAL_IT8712_NAME,
-+ normal_driver: &normal,
-+ callout_major: CALLOUT_IT8712_MAJOR,
-+ callout_name: CALLOUT_IT8712_NAME,
-+ callout_driver: &callout,
-+ table: it8712_table,
-+ termios: it8712_termios,
-+ termios_locked: it8712_termios_locked,
-+ minor: SERIAL_IT8712_MINOR,
-+ nr: UART_NR,
-+#ifdef CONFIG_ARCH_SL2312
-+ port: it8712_ports,
-+#endif
-+ state: NULL,
-+ cons: IT8712_CONSOLE,
-+};
-+
-+static int __init it8712_init(void)
-+{
-+// printk("serial_it8712: it871212_init \n");
-+
-+ return uart_register_driver(&it8712_reg);
-+}
-+
-+
-+__initcall(it8712_init);
---- /dev/null
-+++ b/drivers/serial/serial_sl2312.c
-@@ -0,0 +1,827 @@
-+/*
-+ * linux/drivers/char/serial_uart00.c
-+ *
-+ * Driver for UART00 serial ports
-+ *
-+ * Based on drivers/char/serial_amba.c, by ARM Limited &
-+ * Deep Blue Solutions Ltd.
-+ * Copyright 2001 Altera Corporation
-+ *
-+ * 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
-+ *
-+ * $Id: serial_sl2312.c,v 1.1.1.1 2006/04/03 08:41:00 amos_lee Exp $
-+ *
-+ */
-+#include <linux/module.h>
-+
-+#include <linux/errno.h>
-+#include <linux/signal.h>
-+#include <linux/sched.h>
-+#include <linux/interrupt.h>
-+#include <linux/tty.h>
-+#include <linux/tty_flip.h>
-+#include <linux/major.h>
-+#include <linux/string.h>
-+#include <linux/fcntl.h>
-+#include <linux/ptrace.h>
-+#include <linux/ioport.h>
-+#include <linux/mm.h>
-+#include <linux/slab.h>
-+#include <linux/init.h>
-+#include <linux/circ_buf.h>
-+#include <linux/serial.h>
-+#include <linux/console.h>
-+#include <linux/sysrq.h>
-+#include <linux/serial_core.h>
-+
-+#include <asm/system.h>
-+#include <asm/hardware.h>
-+#include <asm/io.h>
-+#include <asm/irq.h>
-+#include <asm/uaccess.h>
-+#include <asm/bitops.h>
-+#include <asm/sizes.h>
-+#include <linux/spinlock.h>
-+#include <linux/irq.h>
-+
-+
-+#if defined(CONFIG_SERIAL_SL2312_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-+#define SUPPORT_SYSRQ
-+#endif
-+
-+#include <asm/arch/sl2312.h>
-+#define UART_TYPE (volatile unsigned int*)
-+#include <asm/arch/uart.h>
-+#include <asm/arch/int_ctrl.h>
-+
-+// #define DEBUG 1
-+#define UART_NR 1
-+
-+
-+#define SERIAL_SL2312_NAME "ttyS"
-+#define SERIAL_SL2312_MAJOR 204
-+#define SERIAL_SL2312_MINOR 40 /* Temporary - will change in future */
-+#define SERIAL_SL2312_NR UART_NR
-+#define UART_PORT_SIZE 0x50
-+
-+#define SL2312_NO_PORTS UART_NR
-+#define SL2312_ISR_PASS_LIMIT 256
-+
-+/*
-+ * Access macros for the SL2312 UARTs
-+ */
-+#define UART_GET_INT_STATUS(p) (inl(UART_IIR((p)->membase)) & 0x0F) // interrupt identification
-+#define UART_PUT_IER(p, c) outl(c,UART_IER((p)->membase)) // interrupt enable
-+#define UART_GET_IER(p) inl(UART_IER((p)->membase))
-+#define UART_PUT_CHAR(p, c) outl(c,UART_THR((p)->membase)) // transmitter holding
-+#define UART_GET_CHAR(p) inl(UART_RBR((p)->membase)) // receive buffer
-+#define UART_GET_LSR(p) inl(UART_LSR((p)->membase)) // line status
-+#define UART_GET_MSR(p) inl(UART_MSR((p)->membase)) // modem status
-+#define UART_GET_MCR(p) inl(UART_MCR((p)->membase)) // modem control
-+#define UART_PUT_MCR(p, c) outl(c,UART_MCR((p)->membase))
-+#define UART_GET_LCR(p) inl(UART_LCR((p)->membase)) // mode control
-+#define UART_PUT_LCR(p, c) outl(c,UART_LCR((p)->membase))
-+#define UART_GET_DIV_HI(p) inl(UART_DIV_HI((p)->membase))
-+#define UART_PUT_DIV_HI(p, c) outl(c,UART_DIV_HI((p)->membase))
-+#define UART_GET_DIV_LO(p) inl(UART_DIV_LO((p)->membase))
-+#define UART_PUT_DIV_LO(p, c) outl(c,UART_DIV_LO((p)->membase))
-+#define UART_PUT_MDR(p, c) outl(c,UART_MDR((p)->membase))
-+#define UART_RX_DATA(s) ((s) & UART_LSR_DR)
-+#define UART_TX_READY(s) ((s) & UART_LSR_THRE)
-+
-+
-+static void sl2312_stop_tx(struct uart_port *port)
-+{
-+ unsigned int reg;
-+
-+// printk("sl2312 stop tx : \n");
-+ reg = UART_GET_IER(port);
-+ reg &= ~(UART_IER_TE);
-+ UART_PUT_IER(port, reg);
-+}
-+
-+static void sl2312_stop_rx(struct uart_port *port)
-+{
-+ unsigned int reg;
-+
-+// printk("sl2312 stop rx : \n");
-+ reg = UART_GET_IER(port);
-+ reg &= ~(UART_IER_DR);
-+ UART_PUT_IER(port, reg);
-+
-+}
-+
-+static void sl2312_enable_ms(struct uart_port *port)
-+{
-+ unsigned int reg;
-+
-+// printk("sl2312 enable ms : \n");
-+
-+ reg = UART_GET_IER(port);
-+ reg |= (UART_IER_MS);
-+ UART_PUT_IER(port, reg);
-+
-+}
-+
-+static void
-+sl2312_rx_chars(struct uart_port *port)
-+{
-+ struct tty_struct *tty = port->info->tty;
-+ unsigned int status, mask, ch, flg, ignored = 0;
-+
-+
-+ // printk("sl2312_rx_chars : \n");
-+ status = UART_GET_LSR(port);
-+ while (UART_RX_DATA(status)) {
-+
-+ /*
-+ * We need to read rds before reading the
-+ * character from the fifo
-+ */
-+ ch = UART_GET_CHAR(port);
-+ port->icount.rx++;
-+
-+ //if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-+ if (tty && !tty_buffer_request_room(tty, 1))
-+ goto ignore_char;
-+
-+ flg = TTY_NORMAL;
-+
-+ /*
-+ * Note that the error handling code is
-+ * out of the main execution path
-+ */
-+
-+ if (status & (UART_LSR_OE|UART_LSR_PE|UART_LSR_FE|UART_LSR_BI|UART_LSR_DE))
-+ goto handle_error;
-+ if (uart_handle_sysrq_char(port, ch))
-+ goto ignore_char;
-+
-+ error_return:
-+ //*tty->flip.flag_buf_ptr++ = flg;
-+ //*tty->flip.char_buf_ptr++ = ch;
-+ //tty->flip.count++;
-+ tty_insert_flip_char(tty, ch, flg);
-+ ignore_char:
-+ status = UART_GET_LSR(port);
-+ } // end of while
-+out:
-+ tty_flip_buffer_push(tty);
-+ return;
-+
-+handle_error:
-+ if (status & UART_LSR_BI) {
-+ status &= ~(UART_LSR_FE);
-+ port->icount.brk++;
-+
-+#ifdef SUPPORT_SYSRQ
-+ if (uart_handle_break(port))
-+ goto ignore_char;
-+#endif
-+ } else if (status & UART_LSR_PE)
-+ port->icount.parity++;
-+ else if (status & UART_LSR_FE)
-+ port->icount.frame++;
-+
-+ if (status & UART_LSR_OE)
-+ port->icount.overrun++;
-+
-+ if (status & port->ignore_status_mask) {
-+ if (++ignored > 100)
-+ goto out;
-+ goto ignore_char;
-+ }
-+
-+ mask = status & port->read_status_mask;
-+
-+ if (mask & UART_LSR_BI)
-+ flg = TTY_BREAK;
-+ else if (mask & UART_LSR_PE)
-+ flg = TTY_PARITY;
-+ else if (mask & UART_LSR_FE)
-+ flg = TTY_FRAME;
-+
-+ if (status & UART_LSR_OE) {
-+ /*
-+ * CHECK: does overrun affect the current character?
-+ * ASSUMPTION: it does not.
-+ */
-+ //*tty->flip.flag_buf_ptr++ = flg;
-+ //*tty->flip.char_buf_ptr++ = ch;
-+ //tty->flip.count++;
-+
-+ tty_insert_flip_char(tty, 0, TTY_BREAK);
-+
-+ // if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-+ if (tty_buffer_request_room(tty, 1))
-+ goto ignore_char;
-+ ch = 0;
-+ flg = TTY_OVERRUN;
-+ }
-+#ifdef SUPPORT_SYSRQ
-+ port->sysrq = 0;
-+#endif
-+ goto error_return;
-+}
-+
-+static void sl2312_tx_chars(struct uart_port *port)
-+{
-+ struct circ_buf *xmit = &port->info->xmit;
-+ int count;
-+
-+
-+ if (port->x_char) {
-+ while(!(UART_GET_LSR(port)&UART_LSR_THRE));
-+ UART_PUT_CHAR(port, port->x_char);
-+ port->icount.tx++;
-+ port->x_char = 0;
-+
-+ return;
-+ }
-+ if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
-+ sl2312_stop_tx(port);
-+
-+ return;
-+ }
-+
-+ count = port->fifosize >> 1;
-+ do {
-+ while(!(UART_GET_LSR(port)&UART_LSR_THRE));
-+ UART_PUT_CHAR(port, xmit->buf[xmit->tail]);
-+ xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-+ port->icount.tx++;
-+ if (uart_circ_empty(xmit))
-+ break;
-+ } while (--count > 0);
-+
-+ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
-+ uart_write_wakeup(port);
-+
-+ if (uart_circ_empty(xmit))
-+ sl2312_stop_tx(port);
-+
-+}
-+
-+static void sl2312_start_tx(struct uart_port *port)
-+{
-+ unsigned int reg;
-+
-+// printk("sl2312 start tx : \n");
-+ reg = UART_GET_IER(port);
-+ reg |= (UART_IER_TE);
-+ UART_PUT_IER(port, reg);
-+
-+ sl2312_tx_chars(port);
-+}
-+
-+static void sl2312_modem_status(struct uart_port *port)
-+{
-+ unsigned int status;
-+
-+// printk("it8712 modem status : \n");
-+
-+ status = UART_GET_MSR(port);
-+
-+ if (!(status & (UART_MSR_DCTS | UART_MSR_DDSR |
-+ UART_MSR_TERI | UART_MSR_DDCD)))
-+ return;
-+
-+ if (status & UART_MSR_DDCD)
-+ uart_handle_dcd_change(port, status & UART_MSR_DCD);
-+
-+ if (status & UART_MSR_DDSR)
-+ port->icount.dsr++;
-+
-+ if (status & UART_MSR_DCTS)
-+ uart_handle_cts_change(port, status & UART_MSR_CTS);
-+
-+ wake_up_interruptible(&port->info->delta_msr_wait);
-+
-+}
-+
-+static irqreturn_t sl2312_int(int irq, void *dev_id)
-+{
-+ struct uart_port *port = dev_id;
-+ unsigned int status, pass_counter = 0;
-+
-+ status = UART_GET_INT_STATUS(port);
-+ do {
-+ switch(status)
-+ {
-+ case UART_IIR_DR:
-+ case UART_IIR_RLS:
-+ sl2312_rx_chars(port);
-+ break;
-+ case UART_IIR_TE:
-+ sl2312_tx_chars(port);
-+ break;
-+ case UART_IIR_MODEM:
-+ sl2312_modem_status(port);
-+ break;
-+ default:
-+ break;
-+ }
-+ if (pass_counter++ > SL2312_ISR_PASS_LIMIT)
-+ break;
-+
-+ status = UART_GET_INT_STATUS(port);
-+ } while (status);
-+
-+ return IRQ_HANDLED;
-+}
-+
-+static u_int sl2312_tx_empty(struct uart_port *port)
-+{
-+// printk("sl2312 tx empty : \n");
-+
-+ return ((UART_GET_LSR(port) & UART_LSR_TE)? TIOCSER_TEMT : 0);
-+}
-+
-+static u_int sl2312_get_mctrl(struct uart_port *port)
-+{
-+ unsigned int result = 0;
-+ unsigned int status;
-+
-+// printk("sl2312 get mctrl : \n");
-+
-+ status = UART_GET_MSR(port);
-+ if (status & UART_MSR_DCD)
-+ result |= TIOCM_CAR;
-+ if (status & UART_MSR_DSR)
-+ result |= TIOCM_DSR;
-+ if (status & UART_MSR_CTS)
-+ result |= TIOCM_CTS;
-+ if (status & UART_MSR_RI)
-+ result |= TIOCM_RI;
-+
-+ return result;
-+}
-+
-+static void sl2312_set_mctrl_null(struct uart_port *port, u_int mctrl)
-+{
-+}
-+
-+static void sl2312_break_ctl(struct uart_port *port, int break_state)
-+{
-+ unsigned int lcr;
-+
-+// printk("sl2312 break ctl : \n");
-+
-+ lcr = UART_GET_LCR(port);
-+ if (break_state == -1)
-+ lcr |= UART_LCR_SETBREAK;
-+ else
-+ lcr &= ~UART_LCR_SETBREAK;
-+ UART_PUT_LCR(port, lcr);
-+}
-+
-+static inline u_int uart_calculate_quot(struct uart_port *port, u_int baud)
-+{
-+ u_int quot;
-+
-+ /* Special case: B0 rate */
-+ if (!baud)
-+ baud = 9600;
-+
-+ quot = (port->uartclk / (16 * baud)-1) ;
-+
-+ return quot;
-+}
-+
-+static void sl2312_set_termios(struct uart_port *port, struct ktermios *termios,
-+ struct ktermios *old)
-+{
-+ unsigned int uart_mc, old_ier, baud, quot;
-+ unsigned long flags;
-+
-+ termios->c_cflag |= CREAD;
-+#ifdef DEBUG
-+ printk("it8712_set_cflag(0x%x) called\n", cflag);
-+#endif
-+ baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
-+ quot = (port->uartclk / (16 * baud)) ;
-+ //uart_get_divisor(port, baud);
-+
-+ /* byte size and parity */
-+ switch (termios->c_cflag & CSIZE) {
-+ case CS5:
-+ uart_mc = UART_LCR_LEN5;
-+ break;
-+ case CS6:
-+ uart_mc = UART_LCR_LEN6;
-+ break;
-+ case CS7:
-+ uart_mc = UART_LCR_LEN7;
-+ break;
-+ default: // CS8
-+ uart_mc = UART_LCR_LEN8;
-+ break;
-+ }
-+
-+ if (termios->c_cflag & CSTOPB)
-+ uart_mc|= UART_LCR_STOP;
-+ if (termios->c_cflag & PARENB) {
-+ uart_mc |= UART_LCR_EVEN;
-+ if (!(termios->c_cflag & PARODD))
-+ uart_mc |= UART_LCR_ODD;
-+ }
-+
-+ spin_lock_irqsave(&port->lock, flags);
-+ /*
-+ * Update the per-port timeout
-+ */
-+ uart_update_timeout(port, termios->c_cflag, baud);
-+ port->read_status_mask = UART_LSR_OE;
-+ if (termios->c_iflag & INPCK)
-+ port->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-+ if (termios->c_iflag & (BRKINT | PARMRK))
-+ port->read_status_mask |= UART_LSR_BI;
-+
-+ /*
-+ * Characters to ignore
-+ */
-+ port->ignore_status_mask = 0;
-+ if (termios->c_iflag & IGNPAR)
-+ port->ignore_status_mask |= UART_LSR_FE | UART_LSR_PE;
-+ if (termios->c_iflag & IGNBRK) {
-+ port->ignore_status_mask |= UART_LSR_BI;
-+ /*
-+ * If we're ignoring parity and break indicators,
-+ * ignore overruns to (for real raw support).
-+ */
-+ if (termios->c_iflag & IGNPAR)
-+ port->ignore_status_mask |= UART_LSR_OE;
-+ }
-+
-+ //save_flags(flags); cli();
-+ old_ier = UART_GET_IER(port);
-+
-+ if(UART_ENABLE_MS(port, termios->c_cflag))
-+ old_ier |= UART_IER_MS;
-+
-+ /* Set baud rate */
-+ UART_PUT_LCR(port, UART_LCR_DLAB);
-+ UART_PUT_DIV_LO(port, (quot & 0xff));
-+ UART_PUT_DIV_HI(port, ((quot & 0xf00) >> 8));
-+
-+ UART_PUT_LCR(port, uart_mc);
-+ UART_PUT_IER(port, old_ier);
-+
-+ //restore_flags(flags);
-+ spin_unlock_irqrestore(&port->lock, flags);
-+}
-+
-+
-+
-+static int sl2312_startup(struct uart_port *port)
-+{
-+ int retval;
-+ unsigned int regs;
-+
-+// printk("sl2312 startup : \n");
-+
-+ /*
-+ * Use iobase to store a pointer to info. We need this to start a
-+ * transmission as the tranmittr interrupt is only generated on
-+ * the transition to the idle state
-+ */
-+
-+ /*
-+ * Allocate the IRQ
-+ */
-+ retval = request_irq(port->irq, sl2312_int, IRQF_DISABLED, "sl2312", port);
-+ if (retval)
-+ return retval;
-+
-+ /* setup interrupt controller */
-+ regs = *((volatile unsigned int *)IRQ_TMODE(IO_ADDRESS(SL2312_INTERRUPT_BASE)));
-+ regs &= ~(IRQ_UART_MASK);
-+ *((volatile unsigned int *)IRQ_TMODE(IO_ADDRESS(SL2312_INTERRUPT_BASE))) = regs;
-+ regs = *((volatile unsigned int *)IRQ_TLEVEL(IO_ADDRESS(SL2312_INTERRUPT_BASE)));
-+ regs &= ~(IRQ_UART_MASK);
-+ *((volatile unsigned int *)IRQ_TLEVEL(IO_ADDRESS(SL2312_INTERRUPT_BASE))) = regs;
-+ *((volatile unsigned int *)IRQ_MASK(IO_ADDRESS(SL2312_INTERRUPT_BASE))) |= (unsigned int)(IRQ_UART_MASK);
-+
-+ /*
-+ * Finally, enable interrupts. Use the TII interrupt to minimise
-+ * the number of interrupts generated. If higher performance is
-+ * needed, consider using the TI interrupt with a suitable FIFO
-+ * threshold
-+ */
-+ UART_PUT_IER(port, (UART_IER_DR|UART_IER_TE));
-+
-+ return 0;
-+}
-+
-+static void sl2312_shutdown(struct uart_port *port)
-+{
-+// printk("sl2312 shutdown : \n");
-+
-+ /*
-+ * disable all interrupts, disable the port
-+ */
-+ UART_PUT_IER(port, 0x0);
-+
-+ /* disable break condition and fifos */
-+// UART_PUT_MCR(port, (UART_GET_MCR(port)&UART_MCR_MASK));
-+
-+ /*
-+ * Free the interrupt
-+ */
-+ free_irq(port->irq, port);
-+}
-+
-+static const char *sl2312_type(struct uart_port *port)
-+{
-+ return port->type == PORT_SL2312 ? "SL2312" : NULL;
-+}
-+
-+/*
-+ * Release the memory region(s) being used by 'port'
-+ */
-+static void sl2312_release_port(struct uart_port *port)
-+{
-+// printk("sl2312 release port : \n");
-+
-+ release_mem_region(port->mapbase, UART_PORT_SIZE);
-+}
-+
-+/*
-+ * Request the memory region(s) being used by 'port'
-+ */
-+static int sl2312_request_port(struct uart_port *port)
-+{
-+ return request_mem_region(port->mapbase, UART_PORT_SIZE,
-+ "serial_sl2312") != NULL ? 0 : -EBUSY;
-+}
-+
-+/*
-+ * Configure/autoconfigure the port.
-+ */
-+static void sl2312_config_port(struct uart_port *port, int flags)
-+{
-+
-+ if (flags & UART_CONFIG_TYPE) {
-+ if (sl2312_request_port(port) == 0)
-+ port->type = PORT_SL2312;
-+ }
-+}
-+
-+/*
-+ * verify the new serial_struct (for TIOCSSERIAL).
-+ */
-+static int sl2312_verify_port(struct uart_port *port, struct serial_struct *ser)
-+{
-+ int ret = 0;
-+
-+ if (ser->type != PORT_UNKNOWN && ser->type != PORT_UART00)
-+ ret = -EINVAL;
-+ if (ser->irq < 0 || ser->irq >= NR_IRQS)
-+ ret = -EINVAL;
-+ if (ser->baud_base < 9600)
-+ ret = -EINVAL;
-+ return ret;
-+}
-+
-+static struct uart_ops sl2312_pops = {
-+ .tx_empty =sl2312_tx_empty,
-+ .set_mctrl =sl2312_set_mctrl_null,
-+ .get_mctrl =sl2312_get_mctrl,
-+ .stop_tx =sl2312_stop_tx,
-+ .start_tx =sl2312_start_tx,
-+ .stop_rx =sl2312_stop_rx,
-+ .enable_ms =sl2312_enable_ms,
-+ .break_ctl =sl2312_break_ctl,
-+ .startup =sl2312_startup,
-+ .shutdown =sl2312_shutdown,
-+ .set_termios =sl2312_set_termios,
-+ .type =sl2312_type,
-+ .release_port =sl2312_release_port,
-+ .request_port =sl2312_request_port,
-+ .config_port =sl2312_config_port,
-+ .verify_port =sl2312_verify_port,
-+};
-+
-+#ifdef CONFIG_ARCH_SL2312
-+
-+static struct uart_port sl2312_ports[UART_NR] = {
-+ {
-+ membase: (void *)IO_ADDRESS(SL2312_UART_BASE),
-+ mapbase: SL2312_UART_BASE,
-+ iotype: SERIAL_IO_MEM,
-+ irq: IRQ_UART,
-+ uartclk: UART_CLK,
-+ fifosize: 16,
-+ ops: &sl2312_pops,
-+ flags: ASYNC_BOOT_AUTOCONF,
-+ }
-+};
-+
-+#endif
-+
-+#ifdef CONFIG_SERIAL_SL2312_CONSOLE
-+#ifdef used_and_not_const_char_pointer
-+static int sl2312_console_read(struct uart_port *port, char *s, u_int count)
-+{
-+ unsigned int status;
-+ int c;
-+#ifdef DEBUG
-+ printk("sl2312_console_read() called\n");
-+#endif
-+
-+ c = 0;
-+ while (c < count) {
-+ status = UART_GET_LSR(port);
-+ if (UART_RX_DATA(status)) {
-+ *s++ = UART_GET_CHAR(port);
-+ c++;
-+ } else {
-+ // nothing more to get, return
-+ return c;
-+ }
-+ }
-+ // return the count
-+ return c;
-+}
-+#endif
-+static void sl2312_console_write(struct console *co, const char *s, unsigned count)
-+{
-+#ifdef CONFIG_ARCH_SL2312
-+ struct uart_port *port = sl2312_ports + co->index;
-+ unsigned int status, old_ies;
-+ int i;
-+
-+ /*
-+ * First save the CR then disable the interrupts
-+ */
-+ old_ies = UART_GET_IER(port);
-+ UART_PUT_IER(port,0x0);
-+
-+ /*
-+ * Now, do each character
-+ */
-+ for (i = 0; i < count; i++) {
-+ do {
-+ status = UART_GET_LSR(port);
-+ } while (!UART_TX_READY(status));
-+ UART_PUT_CHAR(port, s[i]);
-+ if (s[i] == '\n') {
-+ do {
-+ status = UART_GET_LSR(port);
-+ } while (!UART_TX_READY(status));
-+ UART_PUT_CHAR(port, '\r');
-+ }
-+ }
-+
-+ /*
-+ * Finally, wait for transmitter to become empty
-+ * and restore the IES
-+ */
-+ do {
-+ status = UART_GET_LSR(port);
-+ } while (!(status&UART_LSR_TE));
-+ UART_PUT_IER(port, old_ies);
-+#endif
-+}
-+
-+#if 0
-+static void sl2312_console_device(struct console *co,int *index)
-+{
-+
-+ struct uart_driver *p = co->data;
-+ *index = co->index;
-+ return p->tty_driver;
-+
-+}
-+#endif
-+
-+static void /*__init*/ sl2312_console_get_options(struct uart_port *port, int *baud, int *parity, int *bits)
-+{
-+// printk("sl2312 console get options : \n");
-+
-+ u_int uart_mc, quot;
-+ uart_mc= UART_GET_MCR(port);
-+
-+ *parity = 'n';
-+ if (uart_mc & UART_LCR_PE) {
-+ if (uart_mc & UART_LCR_EVEN)
-+ *parity = 'e';
-+ else
-+ *parity = 'o';
-+ }
-+
-+ switch (uart_mc & UART_LCR_MSK){
-+
-+ case UART_LCR_LEN5:
-+ *bits = 5;
-+ break;
-+ case UART_LCR_LEN6:
-+ *bits = 6;
-+ break;
-+ case UART_LCR_LEN7:
-+ *bits = 7;
-+ break;
-+ case UART_LCR_LEN8:
-+ *bits = 8;
-+ break;
-+ }
-+ UART_PUT_MCR(port,UART_LCR_DLAB);
-+ quot = UART_GET_DIV_LO(port) | (UART_GET_DIV_HI(port) << 8);
-+ UART_PUT_MCR(port,uart_mc);
-+ *baud = port->uartclk / (16 *quot );
-+}
-+
-+static int __init sl2312_console_setup(struct console *co, char *options)
-+{
-+ struct uart_port *port;
-+ int baud = 19200;
-+ int bits = 8;
-+ int parity = 'n';
-+ int flow= 'n';
-+
-+ printk("sl2312 console setup : \n");
-+
-+#ifdef CONFIG_ARCH_SL2312
-+ /*
-+ * Check whether an invalid uart number has been specified, and
-+ * if so, search for the first available port that does have
-+ * console support.
-+ */
-+ port = uart_get_console(sl2312_ports,SL2312_NO_PORTS,co);
-+#else
-+ return -ENODEV;
-+#endif
-+
-+ if (options)
-+ uart_parse_options(options, &baud, &parity, &bits, &flow);
-+ else
-+ sl2312_console_get_options(port, &baud, &parity, &bits);
-+
-+ return uart_set_options(port, co, baud, parity, bits, flow);
-+}
-+
-+extern struct uart_driver sl2312_reg;
-+static struct console sl2312_console = {
-+ .name = SERIAL_SL2312_NAME,
-+ .write = sl2312_console_write,
-+ .device = uart_console_device,
-+// .device = sl2312_console_device,
-+ .setup = sl2312_console_setup,
-+// .flags = (CON_PRINTBUFFER|CON_ENABLED),
-+ .flags = CON_PRINTBUFFER,
-+ .index = -1,
-+ .data = &sl2312_reg,
-+};
-+
-+static int __init sl2312_console_init(void)
-+{
-+ register_console(&sl2312_console);
-+ return 0;
-+
-+}
-+
-+console_initcall(sl2312_console_init);
-+
-+#define SL2312_CONSOLE &sl2312_console
-+#else
-+#define SL2312_CONSOLE NULL
-+#endif
-+
-+// static
-+struct uart_driver sl2312_reg = {
-+ .owner = NULL,
-+ .driver_name = SERIAL_SL2312_NAME,
-+ .dev_name = SERIAL_SL2312_NAME,
-+ .major = SERIAL_SL2312_MAJOR,
-+ .minor = SERIAL_SL2312_MINOR,
-+ .nr = UART_NR,
-+ .cons = SL2312_CONSOLE,
-+};
-+
-+static int __init sl2312_init(void)
-+{
-+ int result;
-+ //printk("serial_it8712: it871212_init \n");
-+
-+ result = uart_register_driver(&sl2312_reg);
-+ if(result)
-+ return result;
-+ result = uart_add_one_port(&sl2312_reg, &sl2312_ports[0]);
-+
-+ return result;
-+}
-+
-+
-+__initcall(sl2312_init);
---- a/include/linux/serial_core.h
-+++ b/include/linux/serial_core.h
-@@ -147,6 +147,10 @@
- #define PORT_SB1250_DUART 77
-
-
-+/* Storlink Soc */
-+#define PORT_SL2312 72
-+#define PORT_IT8712 73
-+
- #ifdef __KERNEL__
-
- #include <linux/compiler.h>
---- a/drivers/char/Makefile
-+++ b/drivers/char/Makefile
-@@ -70,6 +70,16 @@ obj-$(CONFIG_R3964) += n_r3964.o
- obj-$(CONFIG_APPLICOM) += applicom.o
- obj-$(CONFIG_SONYPI) += sonypi.o
- obj-$(CONFIG_RTC) += rtc.o
-+
-+### for Storlink SoC ###
-+obj-$(CONFIG_SL2312_RTC) += sl2312_rtc.o
-+obj-$(CONFIG_IT8712_GPIO) += it8712_gpio.o
-+obj-$(CONFIG_GEMINI_GPIO) += gemini_gpio.o
-+obj-$(CONFIG_GEMINI_PWC) += gemini_pwr.o
-+obj-$(CONFIG_GEMINI_CIR) += gemini_cir.o
-+obj-$(CONFIG_GEMINI_I2S) += gemini_i2s.o
-+obj-$(CONFIG_SL2312_WATCHDOG) += sl2312_wd.o
-+
- obj-$(CONFIG_HPET) += hpet.o
- obj-$(CONFIG_GEN_RTC) += genrtc.o
- obj-$(CONFIG_EFI_RTC) += efirtc.o
---- a/drivers/serial/Kconfig
-+++ b/drivers/serial/Kconfig
-@@ -280,6 +280,56 @@ config SERIAL_8250_RM9K
-
- comment "Non-8250 serial port support"
-
-+config SERIAL_SL2312
-+ bool "SL2312 serial port (sl2312) support"
-+ depends on ARCH_SL2312
-+ select SERIAL_CORE
-+ select SERIAL_SL2312_CONSOLE
-+ help
-+ Say Y here if you want to use the hard logic uart on SWORD. This
-+ driver also supports soft logic implentations of this uart core.
-+
-+config SERIAL_SL2312_CONSOLE
-+ bool "Support for console on SL2312 serial port"
-+ depends on SERIAL_SL2312
-+ select SERIAL_CORE_CONSOLE
-+ help
-+ Say Y here if you want to support a serial console on an SWORD
-+ hard logic uart or uart00 IP core.
-+
-+ Even if you say Y here, the currently visible virtual console
-+ (/dev/tty0) will still be used as the system console by default, but
-+ you can alter that using a kernel command line option such as
-+ "console=ttyS0". (Try "man bootparam" or see the documentation of
-+ your boot loader (lilo or loadlin) about how to pass options to the
-+ kernel at boot time.)
-+
-+
-+config SERIAL_IT8712
-+ bool "Sl2312 serial port(IT8712) support"
-+ depends on ARM && ARCH_SL2312 && SL2312_LPC
-+ select SERIAL_CORE
-+ select SERIAL_IT8712_CONSOLE
-+ help
-+ Say Y here if you want to use the hard logic uart on Excalibur. This
-+ driver also supports soft logic implentations of this uart core.
-+
-+config SERIAL_IT8712_CONSOLE
-+ bool "Support for console on Sword serial port(IT8712)"
-+ depends on SERIAL_IT8712
-+ select SERIAL_CORE_CONSOLE
-+ help
-+ Say Y here if you want to support a serial console on an Excalibur
-+ hard logic uart or uart00 IP core.
-+
-+ Even if you say Y here, the currently visible virtual console
-+ (/dev/tty0) will still be used as the system console by default, but
-+ you can alter that using a kernel command line option such as
-+ "console=ttySI0". (Try "man bootparam" or see the documentation of
-+ your boot loader (lilo or loadlin) about how to pass options to the
-+ kernel at boot time.)
-+
-+
- config SERIAL_AMBA_PL010
- tristate "ARM AMBA PL010 serial port support"
- depends on ARM_AMBA && (BROKEN || !ARCH_VERSATILE)
---- a/drivers/serial/Makefile
-+++ b/drivers/serial/Makefile
-@@ -62,5 +62,7 @@ obj-$(CONFIG_SERIAL_SGI_IOC3) += ioc3_se
- obj-$(CONFIG_SERIAL_ATMEL) += atmel_serial.o
- obj-$(CONFIG_SERIAL_UARTLITE) += uartlite.o
- obj-$(CONFIG_SERIAL_NETX) += netx-serial.o
-+obj-$(CONFIG_SERIAL_IT8712) += it8712.o
-+obj-$(CONFIG_SERIAL_SL2312) += serial_sl2312.o
- obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_serial.o
- obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
projects / openwrt / svn-archive / archive.git / blobdiff