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Diffstat (limited to 'target/linux/ubicom32/files/drivers/serial/ubi32_serdes.c')
-rw-r--r--target/linux/ubicom32/files/drivers/serial/ubi32_serdes.c817
1 files changed, 0 insertions, 817 deletions
diff --git a/target/linux/ubicom32/files/drivers/serial/ubi32_serdes.c b/target/linux/ubicom32/files/drivers/serial/ubi32_serdes.c
deleted file mode 100644
index 79037da49..000000000
--- a/target/linux/ubicom32/files/drivers/serial/ubi32_serdes.c
+++ /dev/null
@@ -1,817 +0,0 @@
-/*
- * drivers/serial/ubi32_serdes.c
- * Ubicom32 On-Chip Serial Driver
- *
- * (C) Copyright 2009, Ubicom, Inc.
- *
- * This file is part of the Ubicom32 Linux Kernel Port.
- *
- * The Ubicom32 Linux Kernel Port 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 Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port. If not,
- * see <http://www.gnu.org/licenses/>.
- *
- * Ubicom32 implementation derived from (with many thanks):
- * arch/m68knommu
- * arch/blackfin
- * arch/parisc
- */
-#include <linux/module.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/console.h>
-#include <linux/sysrq.h>
-#include <linux/platform_device.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial_core.h>
-
-#include <asm/ip5000.h>
-#include <asm/ubicom32suart.h>
-
-
-#define SERIAL_UBICOM_PIN_RXD (1 << 0)
-#define SERIAL_UBICOM_PIN_TXD (1 << 6)
-#define SERIAL_UBICOM_CTL0 0x8b300000
-#define SERIAL_UBICOM_CTL1 0x00000009
-
-#define SERIAL_UBICOM_DATA_BIT 8 /* Fixed parameter - do not change */
-#define SERIAL_UBICOM_PAR_BIT 0 /* Fixed parameter - do not change */
-#define SERIAL_UBICOM_STOP_BIT 1 /* Fixed parameter - do not change */
-
-/* UART name and device definitions */
-#define UBI32_SERDES_NAME "ttyUS" // XXX
-#define UBI32_SERDES_MAJOR 206 // XXX
-#define UBI32_SERDES_MINOR 64 // XXX
-
-#define PORT_UBI32_SERDES 1234
-#define NR_PORTS 1
-
-struct uart_port ubi32_serdes_ports[NR_PORTS];
-
-struct ubi32_serdes_resource {
- void *uart_base_addr;
- int uart_irq;
- int uart_clock;
-} ubi32_serdes_resource[NR_PORTS] = {
- /*
- * Get params from kernel command line (required for early printk)
- * or from platform resources.
- */
- {0, 0, 0}
-};
-
-/*
- * Can get overridden by 'serdes=' kernel command line.
- */
-static int ubi32_serdes_default_baud_rate = 115200;
-
-
-#define IO_PORT(port) ((struct ubicom32_io_port *)port->membase)
-#define IO_PORT_INT_STATUS(port) (IO_PORT(port)->int_status)
-#define IO_PORT_INT_MASK(port) (IO_PORT(port)->int_mask)
-#define IO_PORT_INT_CLR(port) (IO_PORT(port)->int_clr)
-
-
-/*
- * ubi32_serdes_get_char()
- */
-static u8_t ubi32_serdes_get_char(struct ubicom32_io_port *io_port)
-{
- /*
- * Read from hardware (forced 32-bit atomic read).
- */
- u32_t data = 0;
-
- if ( io_port ) {
- io_port->int_clr = IO_PORTX_INT_SERDES_RXBF;
- asm volatile (
- "move.4 %0, %1 \n\t"
- : "=r" (data)
- : "m" (*(u32_t *)&(io_port->rx_fifo))
- );
- }
-
- return (u8_t)(data & 0x000000ff);
-}
-
-/*
- * ubi32_serdes_put_char()
- */
-static void ubi32_serdes_put_char(struct ubicom32_io_port *io_port, u8_t c)
-{
- u32_t data = 0x0000fe00 | (c << 1);
-
- if ( io_port ) {
- /*
- * Fixed data format:
- * [LSB]1 start bit - 8 data bits - no parity - 1 stop bit[MSB]
- */
- io_port->int_clr = IO_PORTX_INT_SERDES_TXBE;
- io_port->ctl2 = data;
- io_port->int_set = IO_PORTX_INT_SERDES_TXBUF_VALID;
- }
-}
-
-static void ubi32_serdes_hw_init(struct uart_port *port, int baud)
-{
- struct ubicom32_io_port *io_port = IO_PORT(port);
-
- if ( io_port ) {
- /*
- * Put port functions 1-4 into reset state.
- * Function 0 (GPIO) does not need or have a reset bit.
- *
- * Select SERDES function for restart below.
- */
- io_port->function =
- IO_FUNC_FUNCTION_RESET(1) | IO_FUNC_FUNCTION_RESET(2) |
- IO_FUNC_FUNCTION_RESET(3) | IO_FUNC_FUNCTION_RESET(4) |
- IO_PORTX_FUNC_SERDES;
-
- /*
- * Configure SERDES baudrate
- */
- if ( baud == 0 ) {
- baud = ubi32_serdes_default_baud_rate;
- }
-
- io_port->ctl0 =
- SERIAL_UBICOM_CTL0 |
- ((port->uartclk / (16 * baud)) - 1);
-
- io_port->ctl1 =
- SERIAL_UBICOM_CTL1;
-
- /*
- * don't interrupt until startup and start_tx
- */
- io_port->int_mask = 0;
-
- /*
- * Set TXD pin output, RXD input and prevent GPIO
- * override on the TXD & RXD pins
- */
- io_port->gpio_ctl &= ~SERIAL_UBICOM_PIN_RXD;
- io_port->gpio_ctl |= SERIAL_UBICOM_PIN_TXD;
- io_port->gpio_mask &= ~(SERIAL_UBICOM_PIN_RXD | SERIAL_UBICOM_PIN_TXD);
-
- /*
- * Restart (un-reset) the port's SERDES function.
- */
- io_port->function &= ~(IO_FUNC_FUNCTION_RESET(IO_PORTX_FUNC_SERDES));
- }
-}
-
-#define ULITE_STATUS_RXVALID IO_PORTX_INT_SERDES_RXBF
-#define ULITE_STATUS_OVERRUN 0
-#define ULITE_STATUS_FRAME 0
-#define ULITE_STATUS_PARITY 0
-#define ULITE_STATUS_TXEMPTY IO_PORTX_INT_SERDES_TXBE
-#define ULITE_STATUS_TXFULL 0
-
-static int ubi32_serdes_receive(struct uart_port *port, int stat)
-{
- struct tty_struct *tty = port->info->port.tty;
- unsigned char ch = 0;
- char flag = TTY_NORMAL;
-
- if ((stat & (ULITE_STATUS_RXVALID | ULITE_STATUS_OVERRUN
- | ULITE_STATUS_FRAME)) == 0)
- return 0;
-
- /* stats */
- if (stat & ULITE_STATUS_RXVALID) {
- port->icount.rx++;
- ch = ubi32_serdes_get_char((struct ubicom32_io_port *)port->membase);
-
- if (stat & ULITE_STATUS_PARITY)
- port->icount.parity++;
- }
-
- if (stat & ULITE_STATUS_OVERRUN)
- port->icount.overrun++;
-
- if (stat & ULITE_STATUS_FRAME)
- port->icount.frame++;
-
-
- /* drop byte with parity error if IGNPAR specificed */
- if (stat & port->ignore_status_mask & ULITE_STATUS_PARITY)
- stat &= ~ULITE_STATUS_RXVALID;
-
- stat &= port->read_status_mask;
-
- if (stat & ULITE_STATUS_PARITY)
- flag = TTY_PARITY;
-
- stat &= ~port->ignore_status_mask;
-
- if (stat & ULITE_STATUS_RXVALID)
- tty_insert_flip_char(tty, ch, flag);
-
- if (stat & ULITE_STATUS_FRAME)
- tty_insert_flip_char(tty, 0, TTY_FRAME);
-
- if (stat & ULITE_STATUS_OVERRUN)
- tty_insert_flip_char(tty, 0, TTY_OVERRUN);
-
- return 1;
-}
-
-/*
- * interrupts are disabled on entry
- */
-static void ubi32_serdes_stop_tx(struct uart_port *port)
-{
- IO_PORT_INT_MASK(port) = IO_PORT_INT_MASK(port) & ~IO_PORTX_INT_SERDES_TXBE;
-}
-
-static int ubi32_serdes_transmit(struct uart_port *port, int stat)
-{
- struct circ_buf *xmit = &port->info->xmit;
-
- if (!(stat & IO_PORTX_INT_SERDES_TXBE))
- return 0;
-
- if (port->x_char) {
- ubi32_serdes_put_char(IO_PORT(port), port->x_char);
- port->x_char = 0;
- port->icount.tx++;
- return 1;
- }
-
- if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
- ubi32_serdes_stop_tx(port);
- return 0;
- }
-
- ubi32_serdes_put_char(IO_PORT(port), xmit->buf[xmit->tail]);
- xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE-1);
- port->icount.tx++;
-
- /* wake up */
- if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
- uart_write_wakeup(port);
-
- if (uart_circ_empty(xmit))
- ubi32_serdes_stop_tx(port);
-
- return 1;
-}
-
-/*
- * port is locked and interrupts are disabled
- */
-static void ubi32_serdes_start_tx(struct uart_port *port)
-{
- IO_PORT_INT_MASK(port) = IO_PORT_INT_MASK(port) | IO_PORTX_INT_SERDES_TXBE;
- ubi32_serdes_transmit(port, IO_PORT_INT_STATUS(port));
-}
-
-/*
- * Interrupts are enabled
- */
-static void ubi32_serdes_stop_rx(struct uart_port *port)
-{
- /* don't forward any more data (like !CREAD) */
- port->ignore_status_mask = IO_PORTX_INT_SERDES_RXBF;
-}
-
-/*
- * Set the modem control timer to fire immediately.
- */
-static void ubi32_serdes_enable_ms(struct uart_port *port)
-{
- /* N/A */
-}
-
-static irqreturn_t ubi32_serdes_isr(int irq, void *dev_id)
-{
- struct uart_port *port = dev_id;
- int busy;
-
- spin_lock(&port->lock);
-
- do {
- int stat = IO_PORT_INT_STATUS(port);
- busy = ubi32_serdes_receive(port, stat);
- busy |= ubi32_serdes_transmit(port, stat);
- } while (busy);
-
- tty_flip_buffer_push(port->info->port.tty);
-
- spin_unlock(&port->lock);
-
- return IRQ_HANDLED;
-}
-
-/*
- * Return TIOCSER_TEMT when transmitter is not busy.
- */
-static unsigned int ubi32_serdes_tx_empty(struct uart_port *port)
-{
- unsigned long flags;
- unsigned int ret;
-
- spin_lock_irqsave(&port->lock, flags);
- ret = IO_PORT_INT_STATUS(port);
- spin_unlock_irqrestore(&port->lock, flags);
-
- return ret & ULITE_STATUS_TXEMPTY ? TIOCSER_TEMT : 0;
-}
-
-static unsigned int ubi32_serdes_get_mctrl(struct uart_port *port)
-{
- return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR;
-}
-
-static void ubi32_serdes_set_mctrl(struct uart_port *port, unsigned int mctrl)
-{
- /* N/A */
-}
-
-/*
- * Interrupts are always disabled.
- */
-static void ubi32_serdes_break_ctl(struct uart_port *port, int break_state)
-{
- /* N/A */
-}
-
-static int ubi32_serdes_startup(struct uart_port *port)
-{
- if (request_irq(port->irq, ubi32_serdes_isr, IRQF_DISABLED,
- "UBI32_SERDES", port)) {
- printk(KERN_NOTICE "Unable to attach port interrupt\n");
- return -EBUSY;
- }
-
- IO_PORT_INT_CLR(port) = IO_PORTX_INT_SERDES_RXBF;
- IO_PORT_INT_MASK(port) = IO_PORTX_INT_SERDES_RXBF;
- return 0;
-}
-
-static void ubi32_serdes_shutdown(struct uart_port *port)
-{
- struct ubi32_serdes_port *uart = (struct ubi32_serdes_port *)port;
-
- IO_PORT_INT_MASK(port) = 0;
- free_irq(port->irq, uart);
-}
-
-static void
-ubi32_serdes_set_termios(struct uart_port *port, struct ktermios *termios,
- struct ktermios *old)
-{
- unsigned long flags;
- unsigned int baud;
-
- spin_lock_irqsave(&port->lock, flags);
-
- port->read_status_mask = ULITE_STATUS_RXVALID | ULITE_STATUS_OVERRUN
- | ULITE_STATUS_TXFULL;
-
- if (termios->c_iflag & INPCK)
- port->read_status_mask |=
- ULITE_STATUS_PARITY | ULITE_STATUS_FRAME;
-
- port->ignore_status_mask = 0;
- if (termios->c_iflag & IGNPAR)
- port->ignore_status_mask |= ULITE_STATUS_PARITY
- | ULITE_STATUS_FRAME | ULITE_STATUS_OVERRUN;
-
- /* ignore all characters if CREAD is not set */
- if ((termios->c_cflag & CREAD) == 0)
- port->ignore_status_mask |=
- ULITE_STATUS_RXVALID | ULITE_STATUS_PARITY
- | ULITE_STATUS_FRAME | ULITE_STATUS_OVERRUN;
-
- /* update timeout */
- baud = uart_get_baud_rate(port, termios, old, 0, 460800);
- uart_update_timeout(port, termios->c_cflag, baud);
-
- IO_PORT(port)->ctl0 = SERIAL_UBICOM_CTL0 |
- ((port->uartclk / (16 * baud)) - 1);
-
- spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static const char *ubi32_serdes_type(struct uart_port *port)
-{
- return port->type == PORT_UBI32_SERDES ? "UBI32_SERDES" : NULL;
-}
-
-/*
- * Release the memory region(s) being used by 'port'.
- */
-static void ubi32_serdes_release_port(struct uart_port *port)
-{
-}
-
-/*
- * Request the memory region(s) being used by 'port'.
- */
-static int ubi32_serdes_request_port(struct uart_port *port)
-{
- return 0;
-}
-
-/*
- * Configure/autoconfigure the port.
- */
-static void ubi32_serdes_config_port(struct uart_port *port, int flags)
-{
- if (flags & UART_CONFIG_TYPE &&
- ubi32_serdes_request_port(port) == 0)
- port->type = PORT_UBI32_SERDES;
-}
-
-/*
- * Verify the new serial_struct (for TIOCSSERIAL).
- * The only change we allow are to the flags and type, and
- * even then only between PORT_UBI32_SERDES and PORT_UNKNOWN
- */
-static int
-ubi32_serdes_verify_port(struct uart_port *port, struct serial_struct *ser)
-{
- return 0;
-}
-
-static struct uart_ops ubi32_serdes_pops = {
- .tx_empty = ubi32_serdes_tx_empty,
- .set_mctrl = ubi32_serdes_set_mctrl,
- .get_mctrl = ubi32_serdes_get_mctrl,
- .stop_tx = ubi32_serdes_stop_tx,
- .start_tx = ubi32_serdes_start_tx,
- .stop_rx = ubi32_serdes_stop_rx,
- .enable_ms = ubi32_serdes_enable_ms,
- .break_ctl = ubi32_serdes_break_ctl,
- .startup = ubi32_serdes_startup,
- .shutdown = ubi32_serdes_shutdown,
- .set_termios = ubi32_serdes_set_termios,
- .type = ubi32_serdes_type,
- .release_port = ubi32_serdes_release_port,
- .request_port = ubi32_serdes_request_port,
- .config_port = ubi32_serdes_config_port,
- .verify_port = ubi32_serdes_verify_port,
-};
-
-static void __init ubi32_serdes_init_ports(void)
-{
- int i;
-
- for (i = 0; i < NR_PORTS; i++) {
- ubi32_serdes_ports[i].uartclk = ubi32_serdes_resource[i].uart_clock;
- ubi32_serdes_ports[i].ops = &ubi32_serdes_pops;
- ubi32_serdes_ports[i].line = i;
- ubi32_serdes_ports[i].iotype = UPIO_MEM;
- ubi32_serdes_ports[i].membase =
- (void __iomem *)ubi32_serdes_resource[i].uart_base_addr;
- ubi32_serdes_ports[i].mapbase =
- (resource_size_t)ubi32_serdes_resource[i].uart_base_addr;
- ubi32_serdes_ports[i].irq =
- ubi32_serdes_resource[i].uart_irq;
- ubi32_serdes_ports[i].flags = UPF_BOOT_AUTOCONF;
-
- ubi32_serdes_hw_init(&ubi32_serdes_ports[i], 0);
- }
-
-}
-
-#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
-/*
- * If the port was already initialised (eg, by a boot loader),
- * try to determine the current setup.
- */
-static void __init
-ubi32_serdes_console_get_options(struct uart_port *port, int *baud)
-{
- u32 round_to = 1200;
- u32 real_baud;
-
- /*
- * We might get called before platform init and with no
- * kernel command line options, so port might be NULL.
- */
- *baud = ubi32_serdes_default_baud_rate;;
- if ( IO_PORT(port) == 0 )
- return;
-
- real_baud = port->uartclk
- / (16 * ((IO_PORT(port)->ctl0 & ~SERIAL_UBICOM_CTL0) + 1));
-
- *baud = ((real_baud + round_to - 1) / round_to) * round_to;
-
- pr_debug("%s:baud = %d, real_baud = %d\n", __FUNCTION__, *baud, real_baud);
-}
-#endif
-
-#if defined(CONFIG_SERIAL_UBI32_SERDES_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
-static struct uart_driver ubi32_serdes_reg;
-
-static int __init
-ubi32_serdes_console_setup(struct console *co, char *options)
-{
- struct uart_port *port;
-#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
- int baud = ubi32_serdes_default_baud_rate;
- int bits = 8;
- int parity = 'n';
- int flow = 'n';
-#endif
-
- /*
- * Check whether an invalid uart number has been specified, and
- * if so, search for the first available port that does have
- * console support.
- */
- if (co->index == -1 || co->index >= NR_PORTS)
- co->index = 0;
- port = &ubi32_serdes_ports[co->index];
-
-#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
- if (options) {
- uart_parse_options(options, &baud, &parity, &bits, &flow);
- ubi32_serdes_hw_init(port, baud);
- }
- else
- ubi32_serdes_console_get_options(port, &baud);
-
- return uart_set_options(port, co, baud, parity, bits, flow);
-#else
- return 0;
-#endif
-}
-#endif /* defined (CONFIG_SERIAL_UBI32_SERDES_CONSOLE) ||
- defined (CONFIG_EARLY_PRINTK) */
-
-#ifdef CONFIG_SERIAL_UBI32_SERDES_CONSOLE
-static void
-ubi32_serdes_console_putchar(struct uart_port *port, int ch)
-{
- if ( IO_PORT(port) ) {
- while (!(IO_PORT_INT_STATUS(port) & IO_PORTX_INT_SERDES_TXBE))
- barrier();
- ubi32_serdes_put_char(IO_PORT(port), ch);
- }
-}
-
-/*
- * Interrupts are disabled on entering
- */
-static void
-ubi32_serdes_console_write(struct console *co, const char *s, unsigned int count)
-{
- struct uart_port *port = &ubi32_serdes_ports[co->index];
- unsigned long flags = 0;
-
- spin_lock_irqsave(&port->lock, flags);
- uart_console_write(port, s, count, ubi32_serdes_console_putchar);
- spin_unlock_irqrestore(&port->lock, flags);
-
-}
-
-static struct console ubi32_serdes_console = {
- .name = UBI32_SERDES_NAME,
- .write = ubi32_serdes_console_write,
- .device = uart_console_device,
- .setup = ubi32_serdes_console_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
- .data = &ubi32_serdes_reg,
-};
-
-static int __init ubi32_serdes_console_init(void)
-{
- ubi32_serdes_init_ports();
- register_console(&ubi32_serdes_console);
- return 0;
-}
-console_initcall(ubi32_serdes_console_init);
-
-#define UBI32_SERDES_CONSOLE &ubi32_serdes_console
-#else
-#define UBI32_SERDES_CONSOLE NULL
-#endif /* CONFIG_SERIAL_UBI32_SERDES_CONSOLE */
-
-
-#ifdef CONFIG_EARLY_PRINTK
-static __init void ubi32_serdes_early_putc(struct uart_port *port, int ch)
-{
- unsigned timeout = 0xffff;
-
- while ((!(IO_PORT_INT_STATUS(port) & IO_PORTX_INT_SERDES_TXBE)) && --timeout)
- cpu_relax();
- ubi32_serdes_put_char(IO_PORT(port), ch);
-}
-
-static __init void ubi32_serdes_early_write(struct console *con, const char *s,
- unsigned int n)
-{
- struct uart_port *port = &ubi32_serdes_ports[con->index];
- unsigned int i;
-
- for (i = 0; i < n; i++, s++) {
- if (*s == '\n')
- ubi32_serdes_early_putc(port, '\r');
- ubi32_serdes_early_putc(port, *s);
- }
-}
-
-static struct __init console ubi32_serdes_early_console = {
- .name = "early_US",
- .write = ubi32_serdes_early_write,
- .device = uart_console_device,
- .flags = CON_PRINTBUFFER,
- .setup = ubi32_serdes_console_setup,
- .index = -1,
- .data = &ubi32_serdes_reg,
-};
-
-/*
- * XXX Unused in our driver. Need to find out what the termios initialization is good/needed for.
- */
-struct console __init *ubi32_serdes_early_init(unsigned int port_index,
- unsigned int cflag)
-{
- struct uart_port *uart;
- struct ktermios t;
-
- if (port_index == -1 || port_index >= NR_PORTS)
- port_index = 0;
- ubi32_serdes_init_ports();
- ubi32_serdes_early_console.index = port_index;
- uart = &ubi32_serdes_ports[port_index];
- t.c_cflag = cflag;
- t.c_iflag = 0;
- t.c_oflag = 0;
- t.c_lflag = ICANON;
- t.c_line = port_index;
- ubi32_serdes_set_termios(uart, &t, &t);
- return &ubi32_serdes_early_console;
-}
-
-#endif /* CONFIG_SERIAL_UBI32_SERDES_CONSOLE */
-
-static struct uart_driver ubi32_serdes_reg = {
- .owner = THIS_MODULE,
- .driver_name = "ubi32_serdes",
- .dev_name = UBI32_SERDES_NAME,
- .major = UBI32_SERDES_MAJOR,
- .minor = UBI32_SERDES_MINOR,
- .nr = NR_PORTS,
- .cons = UBI32_SERDES_CONSOLE,
-};
-
-static int ubi32_serdes_suspend(struct platform_device *dev, pm_message_t state)
-{
- struct uart_port *port = platform_get_drvdata(dev);
-
- if (port)
- uart_suspend_port(&ubi32_serdes_reg, port);
-
- return 0;
-}
-
-static int ubi32_serdes_resume(struct platform_device *dev)
-{
- struct uart_port *port = platform_get_drvdata(dev);
-
- if (port)
- uart_resume_port(&ubi32_serdes_reg, port);
-
- return 0;
-}
-
-static int ubi32_serdes_probe(struct platform_device *dev)
-{
- struct resource *res = dev->resource;
- int i;
-
- for (i = 0; i < dev->num_resources; i++, res++) {
- if (res->flags & IORESOURCE_MEM) {
- ubi32_serdes_resource[0].uart_base_addr = (void *) res->start;
- }
- else if (res->flags & IORESOURCE_IRQ) {
- ubi32_serdes_resource[0].uart_irq = res->start;
- }
- else if (res->flags & UBICOM32_SUART_IORESOURCE_CLOCK) {
- ubi32_serdes_resource[0].uart_clock = res->start;
- }
- }
-
- ubi32_serdes_init_ports();
-
- return 0;
-}
-
-static int ubi32_serdes_remove(struct platform_device *pdev)
-{
- struct uart_port *port = platform_get_drvdata(pdev);
-
- platform_set_drvdata(pdev, NULL);
-
- if (port)
- uart_remove_one_port(&ubi32_serdes_reg, port);
-
- return 0;
-}
-
-static struct platform_driver ubi32_serdes_driver = {
- .remove = ubi32_serdes_remove,
- .suspend = ubi32_serdes_suspend,
- .resume = ubi32_serdes_resume,
- .driver = {
- .name = "ubicom32suart",
- .owner = THIS_MODULE,
- },
-};
-
-
-#ifndef MODULE
-/*
- * Called at boot time.
- *
- * You can specify IO base, IRQ, and clock for the serdes serial port
- * using kernel command line "serdes=0xiobase,irq,clock". Values
- * specified will be overwritten by platform device data, if present.
- */
-static int __init ubi32_serdes_setup(char *str)
-{
-#define N_PARMS (4+1)
- int ints[N_PARMS];
- int i;
-
- str = get_options(str, ARRAY_SIZE(ints), ints);
-
- for (i = 0; i < N_PARMS; i++) {
- if (i < ints[0]) {
- if (i == 0) {
- ubi32_serdes_resource[0].uart_base_addr = (void *) ints[i+1];
- }
- else if (i == 1) {
- ubi32_serdes_resource[0].uart_irq = ints[i+1];
- }
- else if (i == 2) {
- ubi32_serdes_resource[0].uart_clock = ints[i+1];
- }
- else if (i == 3) {
- ubi32_serdes_default_baud_rate = ints[i+1];
- }
- }
- }
- return 1;
-}
-
-__setup("serdes=", ubi32_serdes_setup);
-#endif
-
-static int __init ubi32_serdes_init(void)
-{
- int ret;
-
- pr_info("Serial: Ubicom32 serdes uart serial driver\n");
-
- ret = platform_driver_probe(&ubi32_serdes_driver, ubi32_serdes_probe);
- if (ret != 0) {
- printk(KERN_INFO "serdes platform_driver_probe() failed: %d\n", ret);
- return ret;
- }
-
- ubi32_serdes_init_ports();
-
- ret = uart_register_driver(&ubi32_serdes_reg);
- if ( ret == 0 ) {
- ret = uart_add_one_port(&ubi32_serdes_reg, &ubi32_serdes_ports[0]);
- if ( ret != 0 ) {
- uart_unregister_driver(&ubi32_serdes_reg);
- }
- }
-
- return ret;
-}
-
-static void __exit ubi32_serdes_exit(void)
-{
- platform_driver_unregister(&ubi32_serdes_driver);
- uart_unregister_driver(&ubi32_serdes_reg);
-}
-
-module_init(ubi32_serdes_init);
-module_exit(ubi32_serdes_exit);
-
-MODULE_AUTHOR("Rainer Keller <rkeller@ubicom.com>");
-MODULE_DESCRIPTION("Ubicom generic serial port driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_CHARDEV_MAJOR(UBI32_SERDES_MAJOR);
-MODULE_ALIAS("platform:ubi32_serdes");