cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

serial.c (1919B)

      1/*
      2 *  BRIEF MODULE DESCRIPTION
      3 *     Serial port initialisation.
      4 *
      5 *  Copyright 2004 IDT Inc. (rischelp@idt.com)
      6 *
      7 *  This program is free software; you can redistribute  it and/or modify it
      8 *  under  the terms of  the GNU General  Public License as published by the
      9 *  Free Software Foundation;  either version 2 of the  License, or (at your
     10 *  option) any later version.
     11 *
     12 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
     13 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
     14 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
     15 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
     16 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     17 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
     18 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     19 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
     20 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     21 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     22 *
     23 *  You should have received a copy of the  GNU General Public License along
     24 *  with this program; if not, write  to the Free Software Foundation, Inc.,
     25 *  675 Mass Ave, Cambridge, MA 02139, USA.
     26 */
     27
     28#include <linux/init.h>
     29#include <linux/tty.h>
     30#include <linux/serial_core.h>
     31#include <linux/serial_8250.h>
     32#include <linux/irq.h>
     33
     34#include <asm/serial.h>
     35#include <asm/mach-rc32434/rb.h>
     36
     37extern unsigned int idt_cpu_freq;
     38
     39static struct uart_port rb532_uart = {
     40	.flags = UPF_BOOT_AUTOCONF,
     41	.line = 0,
     42	.irq = UART0_IRQ,
     43	.iotype = UPIO_MEM,
     44	.membase = (char *)KSEG1ADDR(REGBASE + UART0BASE),
     45	.regshift = 2
     46};
     47
     48int __init setup_serial_port(void)
     49{
     50	rb532_uart.uartclk = idt_cpu_freq;
     51
     52	return early_serial_setup(&rb532_uart);
     53}
     54arch_initcall(setup_serial_port);