61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*
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* arch/sh/boards/st/mb411/mach.c
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*
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* Copyright (C) 2005 STMicroelectronics Limited
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* Author: Stuart Menefy (stuart.menefy@st.com)
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*
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* May be copied or modified under the terms of the GNU General Public
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* License. See linux/COPYING for more information.
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*
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* Machine vector for the STMicroelectronics STb7100 Validation board.
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*/
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/machvec.h>
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#include <asm/irq-stx7100.h>
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#include <mach/epld.h>
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static void __iomem *mb411_ioport_map(unsigned long port, unsigned int size)
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{
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/* However picking somewhere safe isn't as easy as you might think.
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* I used to use external ROM, but that can cause problems if you are
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* in the middle of updating Flash. So I'm now using the processor core
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* version register, which is guaranted to be available, and non-writable.
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*/
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return (void __iomem *)CCN_PVR;
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}
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static void __init mb411_init_irq(void)
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{
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/* Set the ILC to route external interrupts to the the INTC */
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/* Outputs 0-3 are the interrupt pins, 4-7 are routed to the INTC */
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ilc_route_external(ILC_EXT_IRQ0, 4, 0);
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ilc_route_external(ILC_EXT_IRQ1, 5, 0);
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ilc_route_external(ILC_EXT_IRQ2, 6, 0);
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/* Route e/net PHY interrupt to SH4 - only for STb7109 */
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#ifdef CONFIG_STMMAC_ETH
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/* Note that we invert the signal - the ste101p is connected
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to the mb411 as active low. The sh4 INTC expects active high */
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ilc_route_external(ILC_EXT_MDINT, 7, 1);
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#else
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ilc_route_external(ILC_EXT_IRQ3, 7, 0);
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#endif
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/* ...where they are hadled as normal HARP style (encoded) interrpts */
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harp_init_irq();
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}
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void __init mb411_setup(char**);
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static struct sh_machine_vector mv_mediaref __initmv = {
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.mv_name = "mb411",
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.mv_setup = mb411_setup,
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.mv_nr_irqs = NR_IRQS,
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.mv_init_irq = mb411_init_irq,
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.mv_ioport_map = mb411_ioport_map,
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};
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