/* * arch/v850/kernel/ma.c -- V850E/MA series of cpu chips * * Copyright (C) 2001,02,03 NEC Electronics Corporation * Copyright (C) 2001,02,03 Miles Bader * * 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 */ #include #include #include #include #include #include #include #include #include #include #include #include "mach.h" void __init mach_sched_init (struct irqaction *timer_action) { /* 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_MACH_IRQS, 1, 7 }, { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 }, { "DMA", IRQ_INTDMA(0), IRQ_INTDMA_NUM, 1, 2 }, { "CSI", IRQ_INTCSI(0), IRQ_INTCSI_NUM, 4, 4 }, { "SER", IRQ_INTSER(0), IRQ_INTSER_NUM, 4, 3 }, { "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 4, 4 }, { "ST", IRQ_INTST(0), IRQ_INTST_NUM, 4, 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 ma_init_irqs (void) { v850e_intc_init_irq_types (irq_inits, hw_itypes); } /* Called before configuring an on-chip UART. */ void ma_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud) { /* We only know about the first two UART channels (though specific chips may have more). */ if (chan < 2) { unsigned bits = 0x3 /* Specify that the relevant pins on the chip should do serial I/O, not direct I/O. */ MA_PORT4_PMC |= bits; /* Specify that we're using the UART, not the CSI device. */ MA_PORT4_PFC |= bits; } }
