1 /* ASB2305 Initialisation 2 * 3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. 4 * Written by David Howells (dhowells@redhat.com) 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public Licence 8 * as published by the Free Software Foundation; either version 9 * 2 of the Licence, or (at your option) any later version. 10 */ 11 #include <linux/kernel.h> 12 #include <linux/param.h> 13 #include <linux/init.h> 14 #include <linux/pci.h> 15 #include <asm/io.h> 16 #include <asm/irq.h> 17 #include <asm/setup.h> 18 #include <asm/processor.h> 19 #include <asm/intctl-regs.h> 20 #include <asm/serial-regs.h> 21 #include <unit/serial.h> 22 23 /* 24 * initialise some of the unit hardware before gdbstub is set up 25 */ unit_init(void)26asmlinkage void __init unit_init(void) 27 { 28 #ifndef CONFIG_GDBSTUB_ON_TTYSx 29 /* set the 16550 interrupt line to level 3 if not being used for GDB */ 30 #ifdef CONFIG_EXT_SERIAL_IRQ_LEVEL 31 set_intr_level(XIRQ0, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL)); 32 #endif 33 #endif /* CONFIG_GDBSTUB_ON_TTYSx */ 34 } 35 36 /* 37 * initialise the rest of the unit hardware after gdbstub is ready 38 */ unit_setup(void)39void __init unit_setup(void) 40 { 41 #ifdef CONFIG_PCI 42 unit_pci_init(); 43 #endif 44 } 45 46 /* 47 * initialise the external interrupts used by a unit of this type 48 */ unit_init_IRQ(void)49void __init unit_init_IRQ(void) 50 { 51 unsigned int extnum; 52 53 for (extnum = 0; extnum < NR_XIRQS; extnum++) { 54 switch (GET_XIRQ_TRIGGER(extnum)) { 55 case XIRQ_TRIGGER_HILEVEL: 56 case XIRQ_TRIGGER_LOWLEVEL: 57 mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum)); 58 break; 59 default: 60 break; 61 } 62 } 63 } 64