65040e224e
- Update common files to support XLP. - Add arch/mips/include/asm/netlogic/xlp-hal for register definitions and access macros - Add arch/mips/netlogic/xlp/ for XLP specific files. Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2967/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
/*
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* Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
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* reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the NetLogic
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* license below:
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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
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* are 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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
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* 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
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <linux/dma-mapping.h>
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/serial.h>
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#include <linux/serial_8250.h>
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#include <linux/pci.h>
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#include <linux/serial_reg.h>
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#include <linux/spinlock.h>
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#include <asm/time.h>
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#include <asm/addrspace.h>
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#include <asm/netlogic/haldefs.h>
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#include <asm/netlogic/xlp-hal/iomap.h>
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#include <asm/netlogic/xlp-hal/xlp.h>
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#include <asm/netlogic/xlp-hal/pic.h>
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#include <asm/netlogic/xlp-hal/uart.h>
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static unsigned int nlm_xlp_uart_in(struct uart_port *p, int offset)
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{
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return nlm_read_reg(p->iobase, offset);
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}
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static void nlm_xlp_uart_out(struct uart_port *p, int offset, int value)
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{
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nlm_write_reg(p->iobase, offset, value);
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}
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#define PORT(_irq) \
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{ \
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.irq = _irq, \
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.regshift = 2, \
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.iotype = UPIO_MEM32, \
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.flags = (UPF_SKIP_TEST|UPF_FIXED_TYPE|\
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UPF_BOOT_AUTOCONF), \
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.uartclk = XLP_IO_CLK, \
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.type = PORT_16550A, \
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.serial_in = nlm_xlp_uart_in, \
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.serial_out = nlm_xlp_uart_out, \
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}
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static struct plat_serial8250_port xlp_uart_data[] = {
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PORT(PIC_UART_0_IRQ),
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PORT(PIC_UART_1_IRQ),
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{},
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};
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static struct platform_device uart_device = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev = {
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.platform_data = xlp_uart_data,
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},
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};
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static int __init nlm_platform_uart_init(void)
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{
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unsigned long mmio;
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mmio = (unsigned long)nlm_get_uart_regbase(0, 0);
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xlp_uart_data[0].iobase = mmio;
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xlp_uart_data[0].membase = (void __iomem *)mmio;
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xlp_uart_data[0].mapbase = mmio;
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mmio = (unsigned long)nlm_get_uart_regbase(0, 1);
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xlp_uart_data[1].iobase = mmio;
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xlp_uart_data[1].membase = (void __iomem *)mmio;
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xlp_uart_data[1].mapbase = mmio;
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return platform_device_register(&uart_device);
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}
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arch_initcall(nlm_platform_uart_init);
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