satip-axe/kernel/arch/sh/boards/mach-mb411/mach.c
2015-03-26 17:24:57 +01:00

61 lines
1.9 KiB
C

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