1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net> 7 */ 8 9 #include <linux/module.h> 10 #include <linux/init.h> 11 #include <linux/serial.h> 12 #include <linux/serial_8250.h> 13 #include <linux/ssb/ssb.h> 14 #include <bcm47xx.h> 15 16 static struct plat_serial8250_port uart8250_data[5]; 17 18 static struct platform_device uart8250_device = { 19 .name = "serial8250", 20 .id = PLAT8250_DEV_PLATFORM, 21 .dev = { 22 .platform_data = uart8250_data, 23 }, 24 }; 25 26 #ifdef CONFIG_BCM47XX_SSB 27 static int __init uart8250_init_ssb(void) 28 { 29 int i; 30 struct ssb_mipscore *mcore = &(bcm47xx_bus.ssb.mipscore); 31 32 memset(&uart8250_data, 0, sizeof(uart8250_data)); 33 34 for (i = 0; i < mcore->nr_serial_ports; i++) { 35 struct plat_serial8250_port *p = &(uart8250_data[i]); 36 struct ssb_serial_port *ssb_port = &(mcore->serial_ports[i]); 37 38 p->mapbase = (unsigned int) ssb_port->regs; 39 p->membase = (void *) ssb_port->regs; 40 p->irq = ssb_port->irq + 2; 41 p->uartclk = ssb_port->baud_base; 42 p->regshift = ssb_port->reg_shift; 43 p->iotype = UPIO_MEM; 44 p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ; 45 } 46 return platform_device_register(&uart8250_device); 47 } 48 #endif 49 50 #ifdef CONFIG_BCM47XX_BCMA 51 static int __init uart8250_init_bcma(void) 52 { 53 int i; 54 struct bcma_drv_cc *cc = &(bcm47xx_bus.bcma.bus.drv_cc); 55 56 memset(&uart8250_data, 0, sizeof(uart8250_data)); 57 58 for (i = 0; i < cc->nr_serial_ports; i++) { 59 struct plat_serial8250_port *p = &(uart8250_data[i]); 60 struct bcma_serial_port *bcma_port; 61 bcma_port = &(cc->serial_ports[i]); 62 63 p->mapbase = (unsigned int) bcma_port->regs; 64 p->membase = (void *) bcma_port->regs; 65 p->irq = bcma_port->irq + 2; 66 p->uartclk = bcma_port->baud_base; 67 p->regshift = bcma_port->reg_shift; 68 p->iotype = UPIO_MEM; 69 p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ; 70 } 71 return platform_device_register(&uart8250_device); 72 } 73 #endif 74 75 static int __init uart8250_init(void) 76 { 77 switch (bcm47xx_bus_type) { 78 #ifdef CONFIG_BCM47XX_SSB 79 case BCM47XX_BUS_TYPE_SSB: 80 return uart8250_init_ssb(); 81 #endif 82 #ifdef CONFIG_BCM47XX_BCMA 83 case BCM47XX_BUS_TYPE_BCMA: 84 return uart8250_init_bcma(); 85 #endif 86 } 87 return -EINVAL; 88 } 89 90 module_init(uart8250_init); 91 92 MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>"); 93 MODULE_LICENSE("GPL"); 94 MODULE_DESCRIPTION("8250 UART probe driver for the BCM47XX platforms"); 95