2 * This program is free software; you can redistribute it and/or modify it
3 * under the terms of the GNU General Public License as published by the
4 * Free Software Foundation; either version 2 of the License, or (at your
5 * option) any later version.
7 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
8 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
10 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
11 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
12 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
13 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
14 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
15 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
16 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 675 Mass Ave, Cambridge, MA 02139, USA.
22 * Copyright 2004 Ralf Baechle <ralf@linux-mips.org>
24 #include <asm/sn/addrs.h>
25 #include <asm/sn/sn0/hub.h>
26 #include <asm/sn/klconfig.h>
27 #include <asm/sn/ioc3.h>
28 #include <asm/sn/sn_private.h>
30 #include <linux/serial.h>
31 #include <linux/serial_core.h>
32 #include <linux/serial_reg.h>
34 #define IOC3_CLK (22000000 / 3)
35 #define IOC3_FLAGS (0)
37 static inline struct ioc3_uartregs *console_uart(void)
41 ioc3 = (struct ioc3 *)KL_CONFIG_CH_CONS_INFO(get_nasid())->memory_base;
43 return &ioc3->sregs.uarta;
46 unsigned char getDebugChar(void)
48 struct ioc3_uartregs *uart = console_uart();
50 while ((uart->iu_lsr & UART_LSR_DR) == 0);
54 void putDebugChar(unsigned char c)
56 struct ioc3_uartregs *uart = console_uart();
58 while ((uart->iu_lsr & UART_LSR_THRE) == 0);