forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.3 KiB
83 lines
2.3 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* |
|
* Renesas Solutions Highlander R7785RP Support. |
|
* |
|
* Copyright (C) 2002 Atom Create Engineering Co., Ltd. |
|
* Copyright (C) 2006 - 2008 Paul Mundt |
|
* Copyright (C) 2007 Magnus Damm |
|
*/ |
|
#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; |
|
}
|
|
|