diff options
Diffstat (limited to 'drivers/serial/amba-pl010.c')
| -rw-r--r-- | drivers/serial/amba-pl010.c | 831 |
1 files changed, 0 insertions, 831 deletions
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c deleted file mode 100644 index ddd0307fece..00000000000 --- a/drivers/serial/amba-pl010.c +++ /dev/null @@ -1,831 +0,0 @@ -/* - * linux/drivers/char/amba.c - * - * Driver for AMBA serial ports - * - * Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o. - * - * Copyright 1999 ARM Limited - * Copyright (C) 2000 Deep Blue Solutions Ltd. - * - * 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: amba.c,v 1.41 2002/07/28 10:03:27 rmk Exp $ - * - * This is a generic driver for ARM AMBA-type serial ports. They - * have a lot of 16550-like features, but are not register compatible. - * Note that although they do have CTS, DCD and DSR inputs, they do - * not have an RI input, nor do they have DTR or RTS outputs. If - * required, these have to be supplied via some other means (eg, GPIO) - * and hooked into this driver. - */ -#include <linux/config.h> - -#if defined(CONFIG_SERIAL_AMBA_PL010_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) -#define SUPPORT_SYSRQ -#endif - -#include <linux/module.h> -#include <linux/ioport.h> -#include <linux/init.h> -#include <linux/console.h> -#include <linux/sysrq.h> -#include <linux/device.h> -#include <linux/tty.h> -#include <linux/tty_flip.h> -#include <linux/serial_core.h> -#include <linux/serial.h> - -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/hardware.h> -#include <asm/hardware/amba.h> -#include <asm/hardware/amba_serial.h> - -#define UART_NR 2 - -#define SERIAL_AMBA_MAJOR 204 -#define SERIAL_AMBA_MINOR 16 -#define SERIAL_AMBA_NR UART_NR - -#define AMBA_ISR_PASS_LIMIT 256 - -/* - * Access macros for the AMBA UARTs - */ -#define UART_GET_INT_STATUS(p) readb((p)->membase + UART010_IIR) -#define UART_PUT_ICR(p, c) writel((c), (p)->membase + UART010_ICR) -#define UART_GET_FR(p) readb((p)->membase + UART01x_FR) -#define UART_GET_CHAR(p) readb((p)->membase + UART01x_DR) -#define UART_PUT_CHAR(p, c) writel((c), (p)->membase + UART01x_DR) -#define UART_GET_RSR(p) readb((p)->membase + UART01x_RSR) -#define UART_GET_CR(p) readb((p)->membase + UART010_CR) -#define UART_PUT_CR(p,c) writel((c), (p)->membase + UART010_CR) -#define UART_GET_LCRL(p) readb((p)->membase + UART010_LCRL) -#define UART_PUT_LCRL(p,c) writel((c), (p)->membase + UART010_LCRL) -#define UART_GET_LCRM(p) readb((p)->membase + UART010_LCRM) -#define UART_PUT_LCRM(p,c) writel((c), (p)->membase + UART010_LCRM) -#define UART_GET_LCRH(p) readb((p)->membase + UART010_LCRH) -#define UART_PUT_LCRH(p,c) writel((c), (p)->membase + UART010_LCRH) -#define UART_RX_DATA(s) (((s) & UART01x_FR_RXFE) == 0) -#define UART_TX_READY(s) (((s) & UART01x_FR_TXFF) == 0) -#define UART_TX_EMPTY(p) ((UART_GET_FR(p) & UART01x_FR_TMSK) == 0) - -#define UART_DUMMY_RSR_RX /*256*/0 -#define UART_PORT_SIZE 64 - -/* - * On the Integrator platform, the port RTS and DTR are provided by - * bits in the following SC_CTRLS register bits: - * RTS DTR - * UART0 7 6 - * UART1 5 4 - */ -#define SC_CTRLC (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLC_OFFSET) -#define SC_CTRLS (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLS_OFFSET) - -/* - * We wrap our port structure around the generic uart_port. - */ -struct uart_amba_port { - struct uart_port port; - unsigned int dtr_mask; - unsigned int rts_mask; - unsigned int old_status; -}; - -static void pl010_stop_tx(struct uart_port *port) -{ - unsigned int cr; - - cr = UART_GET_CR(port); - cr &= ~UART010_CR_TIE; - UART_PUT_CR(port, cr); -} - -static void pl010_start_tx(struct uart_port *port) -{ - unsigned int cr; - - cr = UART_GET_CR(port); - cr |= UART010_CR_TIE; - UART_PUT_CR(port, cr); -} - -static void pl010_stop_rx(struct uart_port *port) -{ - unsigned int cr; - - cr = UART_GET_CR(port); - cr &= ~(UART010_CR_RIE | UART010_CR_RTIE); - UART_PUT_CR(port, cr); -} - -static void pl010_enable_ms(struct uart_port *port) -{ - unsigned int cr; - - cr = UART_GET_CR(port); - cr |= UART010_CR_MSIE; - UART_PUT_CR(port, cr); -} - -static void -#ifdef SUPPORT_SYSRQ -pl010_rx_chars(struct uart_port *port, struct pt_regs *regs) -#else -pl010_rx_chars(struct uart_port *port) -#endif -{ - struct tty_struct *tty = port->info->tty; - unsigned int status, ch, flag, rsr, max_count = 256; - - status = UART_GET_FR(port); - while (UART_RX_DATA(status) && max_count--) { - if (tty->flip.count >= TTY_FLIPBUF_SIZE) { - if (tty->low_latency) - tty_flip_buffer_push(tty); - /* - * If this failed then we will throw away the - * bytes but must do so to clear interrupts. - */ - } - - ch = UART_GET_CHAR(port); - flag = TTY_NORMAL; - - port->icount.rx++; - - /* - * Note that the error handling code is - * out of the main execution path - */ - rsr = UART_GET_RSR(port) | UART_DUMMY_RSR_RX; - if (unlikely(rsr & UART01x_RSR_ANY)) { - if (rsr & UART01x_RSR_BE) { - rsr &= ~(UART01x_RSR_FE | UART01x_RSR_PE); - port->icount.brk++; - if (uart_handle_break(port)) - goto ignore_char; - } else if (rsr & UART01x_RSR_PE) - port->icount.parity++; - else if (rsr & UART01x_RSR_FE) - port->icount.frame++; - if (rsr & UART01x_RSR_OE) - port->icount.overrun++; - - rsr &= port->read_status_mask; - - if (rsr & UART01x_RSR_BE) - flag = TTY_BREAK; - else if (rsr & UART01x_RSR_PE) - flag = TTY_PARITY; - else if (rsr & UART01x_RSR_FE) - flag = TTY_FRAME; - } - - if (uart_handle_sysrq_char(port, ch, regs)) - goto ignore_char; - - uart_insert_char(port, rsr, UART01x_RSR_OE, ch, flag); - - ignore_char: - status = UART_GET_FR(port); - } - tty_flip_buffer_push(tty); - return; -} - -static void pl010_tx_chars(struct uart_port *port) -{ - struct circ_buf *xmit = &port->info->xmit; - int count; - - if (port->x_char) { - UART_PUT_CHAR(port, port->x_char); - port->icount.tx++; - port->x_char = 0; - return; - } - if (uart_circ_empty(xmit) || uart_tx_stopped(port)) { - pl010_stop_tx(port); - return; - } - - count = port->fifosize >> 1; - do { - 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)) - pl010_stop_tx(port); -} - -static void pl010_modem_status(struct uart_port *port) -{ - struct uart_amba_port *uap = (struct uart_amba_port *)port; - unsigned int status, delta; - - UART_PUT_ICR(&uap->port, 0); - - status = UART_GET_FR(&uap->port) & UART01x_FR_MODEM_ANY; - - delta = status ^ uap->old_status; - uap->old_status = status; - - if (!delta) - return; - - if (delta & UART01x_FR_DCD) - uart_handle_dcd_change(&uap->port, status & UART01x_FR_DCD); - - if (delta & UART01x_FR_DSR) - uap->port.icount.dsr++; - - if (delta & UART01x_FR_CTS) - uart_handle_cts_change(&uap->port, status & UART01x_FR_CTS); - - wake_up_interruptible(&uap->port.info->delta_msr_wait); -} - -static irqreturn_t pl010_int(int irq, void *dev_id, struct pt_regs *regs) -{ - struct uart_port *port = dev_id; - unsigned int status, pass_counter = AMBA_ISR_PASS_LIMIT; - int handled = 0; - - spin_lock(&port->lock); - - status = UART_GET_INT_STATUS(port); - if (status) { - do { - if (status & (UART010_IIR_RTIS | UART010_IIR_RIS)) -#ifdef SUPPORT_SYSRQ - pl010_rx_chars(port, regs); -#else - pl010_rx_chars(port); -#endif - if (status & UART010_IIR_MIS) - pl010_modem_status(port); - if (status & UART010_IIR_TIS) - pl010_tx_chars(port); - - if (pass_counter-- == 0) - break; - - status = UART_GET_INT_STATUS(port); - } while (status & (UART010_IIR_RTIS | UART010_IIR_RIS | - UART010_IIR_TIS)); - handled = 1; - } - - spin_unlock(&port->lock); - - return IRQ_RETVAL(handled); -} - -static unsigned int pl010_tx_empty(struct uart_port *port) -{ - return UART_GET_FR(port) & UART01x_FR_BUSY ? 0 : TIOCSER_TEMT; -} - -static unsigned int pl010_get_mctrl(struct uart_port *port) -{ - unsigned int result = 0; - unsigned int status; - - status = UART_GET_FR(port); - if (status & UART01x_FR_DCD) - result |= TIOCM_CAR; - if (status & UART01x_FR_DSR) - result |= TIOCM_DSR; - if (status & UART01x_FR_CTS) - result |= TIOCM_CTS; - - return result; -} - -static void pl010_set_mctrl(struct uart_port *port, unsigned int mctrl) -{ - struct uart_amba_port *uap = (struct uart_amba_port *)port; - unsigned int ctrls = 0, ctrlc = 0; - - if (mctrl & TIOCM_RTS) - ctrlc |= uap->rts_mask; - else - ctrls |= uap->rts_mask; - - if (mctrl & TIOCM_DTR) - ctrlc |= uap->dtr_mask; - else - ctrls |= uap->dtr_mask; - - __raw_writel(ctrls, SC_CTRLS); - __raw_writel(ctrlc, SC_CTRLC); -} - -static void pl010_break_ctl(struct uart_port *port, int break_state) -{ - unsigned long flags; - unsigned int lcr_h; - - spin_lock_irqsave(&port->lock, flags); - lcr_h = UART_GET_LCRH(port); - if (break_state == -1) - lcr_h |= UART01x_LCRH_BRK; - else - lcr_h &= ~UART01x_LCRH_BRK; - UART_PUT_LCRH(port, lcr_h); - spin_unlock_irqrestore(&port->lock, flags); -} - -static int pl010_startup(struct uart_port *port) -{ - struct uart_amba_port *uap = (struct uart_amba_port *)port; - int retval; - - /* - * Allocate the IRQ - */ - retval = request_irq(port->irq, pl010_int, 0, "uart-pl010", port); - if (retval) - return retval; - - /* - * initialise the old status of the modem signals - */ - uap->old_status = UART_GET_FR(port) & UART01x_FR_MODEM_ANY; - - /* - * Finally, enable interrupts - */ - UART_PUT_CR(port, UART01x_CR_UARTEN | UART010_CR_RIE | - UART010_CR_RTIE); - - return 0; -} - -static void pl010_shutdown(struct uart_port *port) -{ - /* - * Free the interrupt - */ - free_irq(port->irq, port); - - /* - * disable all interrupts, disable the port - */ - UART_PUT_CR(port, 0); - - /* disable break condition and fifos */ - UART_PUT_LCRH(port, UART_GET_LCRH(port) & - ~(UART01x_LCRH_BRK | UART01x_LCRH_FEN)); -} - -static void -pl010_set_termios(struct uart_port *port, struct termios *termios, - struct termios *old) -{ - unsigned int lcr_h, old_cr; - unsigned long flags; - unsigned int baud, quot; - - /* - * Ask the core to calculate the divisor for us. - */ - baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16); - quot = uart_get_divisor(port, baud); - - switch (termios->c_cflag & CSIZE) { - case CS5: - lcr_h = UART01x_LCRH_WLEN_5; - break; - case CS6: - lcr_h = UART01x_LCRH_WLEN_6; - break; - case CS7: - lcr_h = UART01x_LCRH_WLEN_7; - break; - default: // CS8 - lcr_h = UART01x_LCRH_WLEN_8; - break; - } - if (termios->c_cflag & CSTOPB) - lcr_h |= UART01x_LCRH_STP2; - if (termios->c_cflag & PARENB) { - lcr_h |= UART01x_LCRH_PEN; - if (!(termios->c_cflag & PARODD)) - lcr_h |= UART01x_LCRH_EPS; - } - if (port->fifosize > 1) - lcr_h |= UART01x_LCRH_FEN; - - spin_lock_irqsave(&port->lock, flags); - - /* - * Update the per-port timeout. - */ - uart_update_timeout(port, termios->c_cflag, baud); - - port->read_status_mask = UART01x_RSR_OE; - if (termios->c_iflag & INPCK) - port->read_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE; - if (termios->c_iflag & (BRKINT | PARMRK)) - port->read_status_mask |= UART01x_RSR_BE; - - /* - * Characters to ignore - */ - port->ignore_status_mask = 0; - if (termios->c_iflag & IGNPAR) - port->ignore_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE; - if (termios->c_iflag & IGNBRK) { - port->ignore_status_mask |= UART01x_RSR_BE; - /* - * If we're ignoring parity and break indicators, - * ignore overruns too (for real raw support). - */ - if (termios->c_iflag & IGNPAR) - port->ignore_status_mask |= UART01x_RSR_OE; - } - - /* - * Ignore all characters if CREAD is not set. - */ - if ((termios->c_cflag & CREAD) == 0) - port->ignore_status_mask |= UART_DUMMY_RSR_RX; - - /* first, disable everything */ - old_cr = UART_GET_CR(port) & ~UART010_CR_MSIE; - - if (UART_ENABLE_MS(port, termios->c_cflag)) - old_cr |= UART010_CR_MSIE; - - UART_PUT_CR(port, 0); - - /* Set baud rate */ - quot -= 1; - UART_PUT_LCRM(port, ((quot & 0xf00) >> 8)); - UART_PUT_LCRL(port, (quot & 0xff)); - - /* - * ----------v----------v----------v----------v----- - * NOTE: MUST BE WRITTEN AFTER UARTLCR_M & UARTLCR_L - * ----------^----------^----------^----------^----- - */ - UART_PUT_LCRH(port, lcr_h); - UART_PUT_CR(port, old_cr); - - spin_unlock_irqrestore(&port->lock, flags); -} - -static const char *pl010_type(struct uart_port *port) -{ - return port->type == PORT_AMBA ? "AMBA" : NULL; -} - -/* - * Release the memory region(s) being used by 'port' - */ -static void pl010_release_port(struct uart_port *port) -{ - release_mem_region(port->mapbase, UART_PORT_SIZE); -} - -/* - * Request the memory region(s) being used by 'port' - */ -static int pl010_request_port(struct uart_port *port) -{ - return request_mem_region(port->mapbase, UART_PORT_SIZE, "uart-pl010") - != NULL ? 0 : -EBUSY; -} - -/* - * Configure/autoconfigure the port. - */ -static void pl010_config_port(struct uart_port *port, int flags) -{ - if (flags & UART_CONFIG_TYPE) { - port->type = PORT_AMBA; - pl010_request_port(port); - } -} - -/* - * verify the new serial_struct (for TIOCSSERIAL). - */ -static int pl010_verify_port(struct uart_port *port, struct serial_struct *ser) -{ - int ret = 0; - if (ser->type != PORT_UNKNOWN && ser->type != PORT_AMBA) - 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 amba_pl010_pops = { - .tx_empty = pl010_tx_empty, - .set_mctrl = pl010_set_mctrl, - .get_mctrl = pl010_get_mctrl, - .stop_tx = pl010_stop_tx, - .start_tx = pl010_start_tx, - .stop_rx = pl010_stop_rx, - .enable_ms = pl010_enable_ms, - .break_ctl = pl010_break_ctl, - .startup = pl010_startup, - .shutdown = pl010_shutdown, - .set_termios = pl010_set_termios, - .type = pl010_type, - .release_port = pl010_release_port, - .request_port = pl010_request_port, - .config_port = pl010_config_port, - .verify_port = pl010_verify_port, -}; - -static struct uart_amba_port amba_ports[UART_NR] = { - { - .port = { - .membase = (void *)IO_ADDRESS(INTEGRATOR_UART0_BASE), - .mapbase = INTEGRATOR_UART0_BASE, - .iotype = SERIAL_IO_MEM, - .irq = IRQ_UARTINT0, - .uartclk = 14745600, - .fifosize = 16, - .ops = &amba_pl010_pops, - .flags = ASYNC_BOOT_AUTOCONF, - .line = 0, - }, - .dtr_mask = 1 << 5, - .rts_mask = 1 << 4, - }, - { - .port = { - .membase = (void *)IO_ADDRESS(INTEGRATOR_UART1_BASE), - .mapbase = INTEGRATOR_UART1_BASE, - .iotype = SERIAL_IO_MEM, - .irq = IRQ_UARTINT1, - .uartclk = 14745600, - .fifosize = 16, - .ops = &amba_pl010_pops, - .flags = ASYNC_BOOT_AUTOCONF, - .line = 1, - }, - .dtr_mask = 1 << 7, - .rts_mask = 1 << 6, - } -}; - -#ifdef CONFIG_SERIAL_AMBA_PL010_CONSOLE - -static void -pl010_console_write(struct console *co, const char *s, unsigned int count) -{ - struct uart_port *port = &amba_ports[co->index].port; - unsigned int status, old_cr; - int i; - - /* - * First save the CR then disable the interrupts - */ - old_cr = UART_GET_CR(port); - UART_PUT_CR(port, UART01x_CR_UARTEN); - - /* - * Now, do each character - */ - for (i = 0; i < count; i++) { - do { - status = UART_GET_FR(port); - } while (!UART_TX_READY(status)); - UART_PUT_CHAR(port, s[i]); - if (s[i] == '\n') { - do { - status = UART_GET_FR(port); - } while (!UART_TX_READY(status)); - UART_PUT_CHAR(port, '\r'); - } - } - - /* - * Finally, wait for transmitter to become empty - * and restore the TCR - */ - do { - status = UART_GET_FR(port); - } while (status & UART01x_FR_BUSY); - UART_PUT_CR(port, old_cr); -} - -static void __init -pl010_console_get_options(struct uart_port *port, int *baud, - int *parity, int *bits) -{ - if (UART_GET_CR(port) & UART01x_CR_UARTEN) { - unsigned int lcr_h, quot; - lcr_h = UART_GET_LCRH(port); - - *parity = 'n'; - if (lcr_h & UART01x_LCRH_PEN) { - if (lcr_h & UART01x_LCRH_EPS) - *parity = 'e'; - else - *parity = 'o'; - } - - if ((lcr_h & 0x60) == UART01x_LCRH_WLEN_7) - *bits = 7; - else - *bits = 8; - - quot = UART_GET_LCRL(port) | UART_GET_LCRM(port) << 8; - *baud = port->uartclk / (16 * (quot + 1)); - } -} - -static int __init pl010_console_setup(struct console *co, char *options) -{ - struct uart_port *port; - int baud = 38400; - int bits = 8; - int parity = 'n'; - int flow = 'n'; - - /* - * 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 >= UART_NR) - co->index = 0; - port = &amba_ports[co->index].port; - - if (options) - uart_parse_options(options, &baud, &parity, &bits, &flow); - else - pl010_console_get_options(port, &baud, &parity, &bits); - - return uart_set_options(port, co, baud, parity, bits, flow); -} - -static struct uart_driver amba_reg; -static struct console amba_console = { - .name = "ttyAM", - .write = pl010_console_write, - .device = uart_console_device, - .setup = pl010_console_setup, - .flags = CON_PRINTBUFFER, - .index = -1, - .data = &amba_reg, -}; - -static int __init amba_console_init(void) -{ - /* - * All port initializations are done statically - */ - register_console(&amba_console); - return 0; -} -console_initcall(amba_console_init); - -static int __init amba_late_console_init(void) -{ - if (!(amba_console.flags & CON_ENABLED)) - register_console(&amba_console); - return 0; -} -late_initcall(amba_late_console_init); - -#define AMBA_CONSOLE &amba_console -#else -#define AMBA_CONSOLE NULL -#endif - -static struct uart_driver amba_reg = { - .owner = THIS_MODULE, - .driver_name = "ttyAM", - .dev_name = "ttyAM", - .major = SERIAL_AMBA_MAJOR, - .minor = SERIAL_AMBA_MINOR, - .nr = UART_NR, - .cons = AMBA_CONSOLE, -}; - -static int pl010_probe(struct amba_device *dev, void *id) -{ - int i; - - for (i = 0; i < UART_NR; i++) { - if (amba_ports[i].port.mapbase != dev->res.start) - continue; - - amba_ports[i].port.dev = &dev->dev; - uart_add_one_port(&amba_reg, &amba_ports[i].port); - amba_set_drvdata(dev, &amba_ports[i]); - break; - } - - return 0; -} - -static int pl010_remove(struct amba_device *dev) -{ - struct uart_amba_port *uap = amba_get_drvdata(dev); - - if (uap) - uart_remove_one_port(&amba_reg, &uap->port); - - amba_set_drvdata(dev, NULL); - - return 0; -} - -static int pl010_suspend(struct amba_device *dev, pm_message_t state) -{ - struct uart_amba_port *uap = amba_get_drvdata(dev); - - if (uap) - uart_suspend_port(&amba_reg, &uap->port); - - return 0; -} - -static int pl010_resume(struct amba_device *dev) -{ - struct uart_amba_port *uap = amba_get_drvdata(dev); - - if (uap) - uart_resume_port(&amba_reg, &uap->port); - - return 0; -} - -static struct amba_id pl010_ids[] __initdata = { - { - .id = 0x00041010, - .mask = 0x000fffff, - }, - { 0, 0 }, -}; - -static struct amba_driver pl010_driver = { - .drv = { - .name = "uart-pl010", - }, - .id_table = pl010_ids, - .probe = pl010_probe, - .remove = pl010_remove, - .suspend = pl010_suspend, - .resume = pl010_resume, -}; - -static int __init pl010_init(void) -{ - int ret; - - printk(KERN_INFO "Serial: AMBA driver $Revision: 1.41 $\n"); - - ret = uart_register_driver(&amba_reg); - if (ret == 0) { - ret = amba_driver_register(&pl010_driver); - if (ret) - uart_unregister_driver(&amba_reg); - } - return ret; -} - -static void __exit pl010_exit(void) -{ - amba_driver_unregister(&pl010_driver); - uart_unregister_driver(&amba_reg); -} - -module_init(pl010_init); -module_exit(pl010_exit); - -MODULE_AUTHOR("ARM Ltd/Deep Blue Solutions Ltd"); -MODULE_DESCRIPTION("ARM AMBA serial port driver $Revision: 1.41 $"); -MODULE_LICENSE("GPL"); |