/* * arch/v850/kernel/teg.c -- NB85E-TEG cpu chip * * Copyright (C) 2001,02,03 NEC Electronics Corporation * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org> * * This file is subject to the terms and conditions of the GNU General * Public License. See the file COPYING in the main directory of this * archive for more details. * * Written by Miles Bader <miles@gnu.org> */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/mm.h> #include <linux/swap.h> #include <linux/bootmem.h> #include <linux/irq.h> #include <asm/atomic.h> #include <asm/page.h> #include <asm/machdep.h> #include <asm/v850e_timer_d.h> #include "mach.h" void __init mach_sched_init (struct irqaction *timer_action) { /* Select timer interrupt instead of external pin. */ TEG_ISS |= 0x1; /* Start hardware timer. */ v850e_timer_d_configure (0, HZ); /* Install timer interrupt handler. */ setup_irq (IRQ_INTCMD(0), timer_action); } static struct v850e_intc_irq_init irq_inits[] = { { "IRQ", 0, NUM_CPU_IRQS, 1, 7 }, { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 }, { "SER", IRQ_INTSER(0), IRQ_INTSER_NUM, 1, 3 }, { "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 1, 4 }, { "ST", IRQ_INTST(0), IRQ_INTST_NUM, 1, 5 }, { 0 } }; #define NUM_IRQ_INITS ((sizeof irq_inits / sizeof irq_inits[0]) - 1) static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS]; /* Initialize MA chip interrupts. */ void __init teg_init_irqs (void) { v850e_intc_init_irq_types (irq_inits, hw_itypes); } /* Called before configuring an on-chip UART. */ void teg_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud) { /* Enable UART I/O pins instead of external interrupt pins, and UART interrupts instead of external pin interrupts. */ TEG_ISS |= 0x4E; }