/*
* Renesas Solutions Highlander R7785RP Support.
*
* Copyright (C) 2002 Atom Create Engineering Co., Ltd.
* Copyright (C) 2006 - 2008 Paul Mundt
* Copyright (C) 2007 Magnus Damm
*
* 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.
*/
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <mach/highlander.h>
enum {
UNUSED = 0,
/* FPGA specific interrupt sources */
CF, /* Compact Flash */
SMBUS, /* SMBUS */
TP, /* Touch panel */
RTC, /* RTC Alarm */
TH_ALERT, /* Temperature sensor */
AX88796, /* Ethernet controller */
/* external bus connector */
EXT0, EXT1, EXT2, EXT3, EXT4, EXT5, EXT6, EXT7,
};
static struct intc_vect vectors[] __initdata = {
INTC_IRQ(CF, IRQ_CF),
INTC_IRQ(SMBUS, IRQ_SMBUS),
INTC_IRQ(TP, IRQ_TP),
INTC_IRQ(RTC, IRQ_RTC),
INTC_IRQ(TH_ALERT, IRQ_TH_ALERT),
INTC_IRQ(EXT0, IRQ_EXT0), INTC_IRQ(EXT1, IRQ_EXT1),
INTC_IRQ(EXT2, IRQ_EXT2), INTC_IRQ(EXT3, IRQ_EXT3),
INTC_IRQ(EXT4, IRQ_EXT4), INTC_IRQ(EXT5, IRQ_EXT5),
INTC_IRQ(EXT6, IRQ_EXT6), INTC_IRQ(EXT7, IRQ_EXT7),
INTC_IRQ(AX88796, IRQ_AX88796),
};
static struct intc_mask_reg mask_registers[] __initdata = {
{ 0xa4000010, 0, 16, /* IRLMCR1 */
{ 0, 0, 0, 0, CF, AX88796, SMBUS, TP,
RTC, 0, TH_ALERT, 0, 0, 0, 0, 0 } },
{ 0xa4000012, 0, 16, /* IRLMCR2 */
{ 0, 0, 0, 0, 0, 0, 0, 0,
EXT7, EXT6, EXT5, EXT4, EXT3, EXT2, EXT1, EXT0 } },
};
static unsigned char irl2irq[HL_NR_IRL] __initdata = {
0, IRQ_CF, IRQ_EXT4, IRQ_EXT5,
IRQ_EXT6, IRQ_EXT7, IRQ_SMBUS, IRQ_TP,
IRQ_RTC, IRQ_TH_ALERT, IRQ_AX88796, IRQ_EXT0,
IRQ_EXT1, IRQ_EXT2, IRQ_EXT3,
};
static DECLARE_INTC_DESC(intc_desc, "r7785rp", vectors,
NULL, mask_registers, NULL, NULL);
unsigned char * __init highlander_plat_irq_setup(void)
{
if ((__raw_readw(0xa4000158) & 0xf000) != 0x1000)
return NULL;
printk(KERN_INFO "Using r7785rp interrupt controller.\n");
__raw_writew(0x0000, PA_IRLSSR1); /* FPGA IRLSSR1(CF_CD clear) */
/* Setup the FPGA IRL */
__raw_writew(0x0000, PA_IRLPRA); /* FPGA IRLA */
__raw_writew(0xe598, PA_IRLPRB); /* FPGA IRLB */
__raw_writew(0x7060, PA_IRLPRC); /* FPGA IRLC */
__raw_writew(0x0000, PA_IRLPRD); /* FPGA IRLD */
__raw_writew(0x4321, PA_IRLPRE); /* FPGA IRLE */
__raw_writew(0xdcba, PA_IRLPRF); /* FPGA IRLF */
register_intc_controller(&intc_desc);
return irl2irq;
}
