freebsd-skq/sys/mips/malta/uart_cpu_maltausart.c

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/*-
* Copyright (c) 2006 Wojciech A. Koszek <wkoszek@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
*/
/*
* Skeleton of this file was based on respective code for ARM
* code written by Olivier Houchard.
*/
#include "opt_uart.h"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/cons.h>
#include <machine/bus.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_cpu.h>
#include <mips/malta/maltareg.h>
bus_space_tag_t uart_bus_space_io;
bus_space_tag_t uart_bus_space_mem;
extern struct uart_ops malta_usart_ops;
extern struct bus_space malta_bs_tag;
int
uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
{
return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
}
int
uart_cpu_getdev(int devtype, struct uart_devinfo *di)
{
di->ops = uart_getops(&uart_ns8250_class);
di->bas.chan = 0;
Merge from projects/mips to head by hand: r201881 | imp | 2010-01-08 20:08:22 -0700 (Fri, 08 Jan 2010) | 3 lines Rename mips_pcpu_init to mips_pcpu0_init since it applies only to the BSP. Provide a missing prototype. r198669 | rrs | 2009-10-30 02:53:11 -0600 (Fri, 30 Oct 2009) | 5 lines With this commit our friend RMI will now compile. I have not tested it and the chances of it running yet are about ZERO.. but it will now compile. The hard part now begins, making it run ;-) r198154 | rrs | 2009-10-15 15:03:32 -0600 (Thu, 15 Oct 2009) | 10 lines Does 4 things: 1) Adds future RMI directories 2) Places intr_machdep.c in specfic files.arch pointing to the generic intr_machdep.c. This allows us to have an architecture dependant intr_machdep.c (which we will need for RMI) in the machine specific directory 3) removes intr_machdep.c from files.mips 4) Adds some TARGET_XLR_XLS ifdef's for the machine specific intra_machdep.h. We may need to look at finding a better place to put this. But first I want to get this thing compiling. r196836 | gonzo | 2009-09-04 13:02:11 -0600 (Fri, 04 Sep 2009) | 2 lines - Clean out some XXXMIPS comments that's not relevant now r196236 | imp | 2009-08-14 19:03:13 -0600 (Fri, 14 Aug 2009) | 3 lines Fix style error replicated multiple times. Move to mips_bus_space_generic for octeon obio impl. r195496 | imp | 2009-07-09 09:04:52 -0600 (Thu, 09 Jul 2009) | 2 lines Don't force ISA_MIPS32. r195495 | imp | 2009-07-09 09:04:24 -0600 (Thu, 09 Jul 2009) | 4 lines Make the yamon function pointer stuff 64-bit safe. Make the base unsigned long, and sign extend the address of the function we're calling through. r195494 | imp | 2009-07-09 08:54:09 -0600 (Thu, 09 Jul 2009) | 3 lines Addresses should be unsigned long. Make the address constants unsigned long. r194929 | gonzo | 2009-06-24 16:42:52 -0600 (Wed, 24 Jun 2009) | 6 lines - Do not use hardcoded uart speed - Call mips_timer_early_init before initializing uart in order to make DELAY usable for ns8250 driver Submitted by: Neelkanth Natu r194212 | gonzo | 2009-06-14 14:54:46 -0600 (Sun, 14 Jun 2009) | 2 lines - Fix prototypes to make compiler happy r192864 | gonzo | 2009-05-26 16:40:12 -0600 (Tue, 26 May 2009) | 4 lines - Replace CPU_NOFPU and SOFTFLOAT options with CPU_FPU. By default we assume that there is no FPU, because majority of SoC does not have it. r192788 | gonzo | 2009-05-25 22:51:56 -0600 (Mon, 25 May 2009) | 3 lines - Provide proper pre_thread/post_ithread functions for GT PCI controller. r191282 | gonzo | 2009-04-19 16:02:14 -0600 (Sun, 19 Apr 2009) | 3 lines - Make mips_bus_space_generic be of type bus_space_tag_t instead of struct bus_space and update all relevant places. r191084 | gonzo | 2009-04-14 20:28:26 -0600 (Tue, 14 Apr 2009) | 6 lines Use FreeBSD/arm approach for handling bus space access: space tag is a pointer to bus_space structure that defines access methods and hence every bus can define own accessors. Default space is mips_bus_space_generic. It's a simple interface to physical memory, values are read with regard to host system byte order.
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di->bas.bst = mips_bus_space_generic;
di->bas.bsh = MIPS_PHYS_TO_KSEG1(MALTA_UART0ADR);
di->bas.regshft = 0;
di->bas.rclk = 0;
Merge from projects/mips to head by hand: r201881 | imp | 2010-01-08 20:08:22 -0700 (Fri, 08 Jan 2010) | 3 lines Rename mips_pcpu_init to mips_pcpu0_init since it applies only to the BSP. Provide a missing prototype. r198669 | rrs | 2009-10-30 02:53:11 -0600 (Fri, 30 Oct 2009) | 5 lines With this commit our friend RMI will now compile. I have not tested it and the chances of it running yet are about ZERO.. but it will now compile. The hard part now begins, making it run ;-) r198154 | rrs | 2009-10-15 15:03:32 -0600 (Thu, 15 Oct 2009) | 10 lines Does 4 things: 1) Adds future RMI directories 2) Places intr_machdep.c in specfic files.arch pointing to the generic intr_machdep.c. This allows us to have an architecture dependant intr_machdep.c (which we will need for RMI) in the machine specific directory 3) removes intr_machdep.c from files.mips 4) Adds some TARGET_XLR_XLS ifdef's for the machine specific intra_machdep.h. We may need to look at finding a better place to put this. But first I want to get this thing compiling. r196836 | gonzo | 2009-09-04 13:02:11 -0600 (Fri, 04 Sep 2009) | 2 lines - Clean out some XXXMIPS comments that's not relevant now r196236 | imp | 2009-08-14 19:03:13 -0600 (Fri, 14 Aug 2009) | 3 lines Fix style error replicated multiple times. Move to mips_bus_space_generic for octeon obio impl. r195496 | imp | 2009-07-09 09:04:52 -0600 (Thu, 09 Jul 2009) | 2 lines Don't force ISA_MIPS32. r195495 | imp | 2009-07-09 09:04:24 -0600 (Thu, 09 Jul 2009) | 4 lines Make the yamon function pointer stuff 64-bit safe. Make the base unsigned long, and sign extend the address of the function we're calling through. r195494 | imp | 2009-07-09 08:54:09 -0600 (Thu, 09 Jul 2009) | 3 lines Addresses should be unsigned long. Make the address constants unsigned long. r194929 | gonzo | 2009-06-24 16:42:52 -0600 (Wed, 24 Jun 2009) | 6 lines - Do not use hardcoded uart speed - Call mips_timer_early_init before initializing uart in order to make DELAY usable for ns8250 driver Submitted by: Neelkanth Natu r194212 | gonzo | 2009-06-14 14:54:46 -0600 (Sun, 14 Jun 2009) | 2 lines - Fix prototypes to make compiler happy r192864 | gonzo | 2009-05-26 16:40:12 -0600 (Tue, 26 May 2009) | 4 lines - Replace CPU_NOFPU and SOFTFLOAT options with CPU_FPU. By default we assume that there is no FPU, because majority of SoC does not have it. r192788 | gonzo | 2009-05-25 22:51:56 -0600 (Mon, 25 May 2009) | 3 lines - Provide proper pre_thread/post_ithread functions for GT PCI controller. r191282 | gonzo | 2009-04-19 16:02:14 -0600 (Sun, 19 Apr 2009) | 3 lines - Make mips_bus_space_generic be of type bus_space_tag_t instead of struct bus_space and update all relevant places. r191084 | gonzo | 2009-04-14 20:28:26 -0600 (Tue, 14 Apr 2009) | 6 lines Use FreeBSD/arm approach for handling bus space access: space tag is a pointer to bus_space structure that defines access methods and hence every bus can define own accessors. Default space is mips_bus_space_generic. It's a simple interface to physical memory, values are read with regard to host system byte order.
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di->baudrate = 0; /* retain the baudrate configured by YAMON */
di->databits = 8;
di->stopbits = 1;
di->parity = UART_PARITY_NONE;
Merge from projects/mips to head by hand: r201881 | imp | 2010-01-08 20:08:22 -0700 (Fri, 08 Jan 2010) | 3 lines Rename mips_pcpu_init to mips_pcpu0_init since it applies only to the BSP. Provide a missing prototype. r198669 | rrs | 2009-10-30 02:53:11 -0600 (Fri, 30 Oct 2009) | 5 lines With this commit our friend RMI will now compile. I have not tested it and the chances of it running yet are about ZERO.. but it will now compile. The hard part now begins, making it run ;-) r198154 | rrs | 2009-10-15 15:03:32 -0600 (Thu, 15 Oct 2009) | 10 lines Does 4 things: 1) Adds future RMI directories 2) Places intr_machdep.c in specfic files.arch pointing to the generic intr_machdep.c. This allows us to have an architecture dependant intr_machdep.c (which we will need for RMI) in the machine specific directory 3) removes intr_machdep.c from files.mips 4) Adds some TARGET_XLR_XLS ifdef's for the machine specific intra_machdep.h. We may need to look at finding a better place to put this. But first I want to get this thing compiling. r196836 | gonzo | 2009-09-04 13:02:11 -0600 (Fri, 04 Sep 2009) | 2 lines - Clean out some XXXMIPS comments that's not relevant now r196236 | imp | 2009-08-14 19:03:13 -0600 (Fri, 14 Aug 2009) | 3 lines Fix style error replicated multiple times. Move to mips_bus_space_generic for octeon obio impl. r195496 | imp | 2009-07-09 09:04:52 -0600 (Thu, 09 Jul 2009) | 2 lines Don't force ISA_MIPS32. r195495 | imp | 2009-07-09 09:04:24 -0600 (Thu, 09 Jul 2009) | 4 lines Make the yamon function pointer stuff 64-bit safe. Make the base unsigned long, and sign extend the address of the function we're calling through. r195494 | imp | 2009-07-09 08:54:09 -0600 (Thu, 09 Jul 2009) | 3 lines Addresses should be unsigned long. Make the address constants unsigned long. r194929 | gonzo | 2009-06-24 16:42:52 -0600 (Wed, 24 Jun 2009) | 6 lines - Do not use hardcoded uart speed - Call mips_timer_early_init before initializing uart in order to make DELAY usable for ns8250 driver Submitted by: Neelkanth Natu r194212 | gonzo | 2009-06-14 14:54:46 -0600 (Sun, 14 Jun 2009) | 2 lines - Fix prototypes to make compiler happy r192864 | gonzo | 2009-05-26 16:40:12 -0600 (Tue, 26 May 2009) | 4 lines - Replace CPU_NOFPU and SOFTFLOAT options with CPU_FPU. By default we assume that there is no FPU, because majority of SoC does not have it. r192788 | gonzo | 2009-05-25 22:51:56 -0600 (Mon, 25 May 2009) | 3 lines - Provide proper pre_thread/post_ithread functions for GT PCI controller. r191282 | gonzo | 2009-04-19 16:02:14 -0600 (Sun, 19 Apr 2009) | 3 lines - Make mips_bus_space_generic be of type bus_space_tag_t instead of struct bus_space and update all relevant places. r191084 | gonzo | 2009-04-14 20:28:26 -0600 (Tue, 14 Apr 2009) | 6 lines Use FreeBSD/arm approach for handling bus space access: space tag is a pointer to bus_space structure that defines access methods and hence every bus can define own accessors. Default space is mips_bus_space_generic. It's a simple interface to physical memory, values are read with regard to host system byte order.
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uart_bus_space_io = NULL;
uart_bus_space_mem = mips_bus_space_generic;
return (0);
}