94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
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/*
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* 8250 UART probe driver for the BCM47XX platforms
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* Author: Aurelien Jarno
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
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*/
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#include <linux/init.h>
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#include <linux/serial.h>
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#include <linux/serial_8250.h>
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#include <linux/ssb/ssb.h>
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#include <bcm47xx.h>
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static struct plat_serial8250_port uart8250_data[5];
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static struct platform_device uart8250_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 = uart8250_data,
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},
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};
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#ifdef CONFIG_BCM47XX_SSB
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static int __init uart8250_init_ssb(void)
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{
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int i;
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struct ssb_mipscore *mcore = &(bcm47xx_bus.ssb.mipscore);
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memset(&uart8250_data, 0, sizeof(uart8250_data));
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for (i = 0; i < mcore->nr_serial_ports &&
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i < ARRAY_SIZE(uart8250_data) - 1; i++) {
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struct plat_serial8250_port *p = &(uart8250_data[i]);
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struct ssb_serial_port *ssb_port = &(mcore->serial_ports[i]);
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p->mapbase = (unsigned int)ssb_port->regs;
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p->membase = (void *)ssb_port->regs;
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p->irq = ssb_port->irq + 2;
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p->uartclk = ssb_port->baud_base;
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p->regshift = ssb_port->reg_shift;
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p->iotype = UPIO_MEM;
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p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
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}
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return platform_device_register(&uart8250_device);
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}
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#endif
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#ifdef CONFIG_BCM47XX_BCMA
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static int __init uart8250_init_bcma(void)
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{
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int i;
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struct bcma_drv_cc *cc = &(bcm47xx_bus.bcma.bus.drv_cc);
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memset(&uart8250_data, 0, sizeof(uart8250_data));
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for (i = 0; i < cc->nr_serial_ports &&
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i < ARRAY_SIZE(uart8250_data) - 1; i++) {
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struct plat_serial8250_port *p = &(uart8250_data[i]);
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struct bcma_serial_port *bcma_port;
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bcma_port = &(cc->serial_ports[i]);
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p->mapbase = (unsigned int)bcma_port->regs;
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p->membase = (void *)bcma_port->regs;
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p->irq = bcma_port->irq;
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p->uartclk = bcma_port->baud_base;
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p->regshift = bcma_port->reg_shift;
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p->iotype = UPIO_MEM;
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p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
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}
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return platform_device_register(&uart8250_device);
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}
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#endif
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static int __init uart8250_init(void)
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{
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switch (bcm47xx_bus_type) {
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#ifdef CONFIG_BCM47XX_SSB
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case BCM47XX_BUS_TYPE_SSB:
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return uart8250_init_ssb();
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#endif
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#ifdef CONFIG_BCM47XX_BCMA
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case BCM47XX_BUS_TYPE_BCMA:
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return uart8250_init_bcma();
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#endif
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}
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return -EINVAL;
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}
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device_initcall(uart8250_init);
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