cd4c8d64ff
* Update the hardware access register definitions and functions to bring them in line with other Netlogic software. * Update the platform bus to use PCI even for on-chip devices. Add a dummy PCI driver to ignore on-chip devices which do not need driver. * Provide memory and IRQ resource allocation code for on-chip devices which cannot get it from PCI config. * add support for on-chip PCI and USB interfaces. * update conf files, enable pci and retain old MAXCPU until we can support >32 cpus. Approved by: re(kib), jmallett
114 lines
3.3 KiB
C
114 lines
3.3 KiB
C
/*-
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* Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* NETLOGIC_BSD */
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/*
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* Skeleton of this file was based on respective code for ARM
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* code written by Olivier Houchard.
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*/
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/*
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* XLRMIPS: This file is hacked from arm/...
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*/
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#include "opt_uart.h"
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/cons.h>
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#include <sys/kdb.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <machine/bus.h>
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#include <dev/uart/uart.h>
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#include <dev/uart/uart_cpu.h>
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#include <mips/nlm/hal/haldefs.h>
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#include <mips/nlm/hal/iomap.h>
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#include <mips/nlm/hal/uart.h>
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bus_space_tag_t uart_bus_space_io;
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bus_space_tag_t uart_bus_space_mem;
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/*
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* need a special bus space for this, because the Netlogic SoC
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* UART allows only 32 bit access to its registers
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*/
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static struct bus_space nlm_uart_bussp;
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static u_int8_t
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nlm_uart_bussp_read_1(void *tag, bus_space_handle_t handle,
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bus_size_t offset)
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{
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return (u_int8_t)(*(volatile u_int32_t *)(handle + offset));
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}
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static void
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nlm_uart_bussp_write_1(void *tag, bus_space_handle_t handle,
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bus_size_t offset, u_int8_t value)
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{
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*(volatile u_int32_t *)(handle + offset) = value;
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}
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int
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uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
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{
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return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
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}
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int
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uart_cpu_getdev(int devtype, struct uart_devinfo *di)
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{
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/* Create custom bus space */
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memcpy(&nlm_uart_bussp, rmi_bus_space, sizeof(nlm_uart_bussp));
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nlm_uart_bussp.bs_r_1 = nlm_uart_bussp_read_1;
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nlm_uart_bussp.bs_w_1 = nlm_uart_bussp_write_1;
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di->ops = uart_getops(&uart_ns8250_class);
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di->bas.chan = 0;
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di->bas.bst = &nlm_uart_bussp;
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di->bas.bsh = nlm_get_uart_regbase(0, 0);
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di->bas.regshft = 2;
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/* divisor = rclk / (baudrate * 16); */
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di->bas.rclk = 133000000;
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di->baudrate = 115200;
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di->databits = 8;
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di->stopbits = 1;
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di->parity = UART_PARITY_NONE;
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uart_bus_space_io = NULL;
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uart_bus_space_mem = &nlm_uart_bussp;
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return (0);
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}
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