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linux-next/arch/arm/mach-shmobile/intc-sh73a0.c
Magnus Damm 566aad39df ARM: mach-shmobile: sh73a0 and AG5EVM PINT support 
Support PINT on sh73a0 and AG5EVM using INTC PINT macros.

With this patch applied the AG5EVM ethernet is handled
through one of the chained sh73a0 PINT interrupt controllers.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-05 01:03:55 +09:00

462 lines
16 KiB
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/*
* sh73a0 processor support - INTC hardware block
*
* Copyright (C) 2010 Magnus Damm
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/sh_intc.h>
#include <mach/intc.h>
#include <mach/sh73a0.h>
#include <asm/hardware/gic.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
enum {
UNUSED = 0,
/* interrupt sources INTCS */
PINTCS_PINT1, PINTCS_PINT2,
RTDMAC_0_DEI0, RTDMAC_0_DEI1, RTDMAC_0_DEI2, RTDMAC_0_DEI3,
CEU, MFI, BBIF2, VPU, TSIF1, _3DG_SGX543, _2DDMAC_2DDM0,
RTDMAC_1_DEI4, RTDMAC_1_DEI5, RTDMAC_1_DADERR,
KEYSC_KEY, VINT, MSIOF,
TMU0_TUNI00, TMU0_TUNI01, TMU0_TUNI02,
CMT0, TSIF0, CMT2, LMB, MSUG, MSU_MSU, MSU_MSU2,
CTI, RWDT0, ICB, PEP, ASA, JPU_JPEG, LCDC, LCRC,
RTDMAC_2_DEI6, RTDMAC_2_DEI7, RTDMAC_2_DEI8, RTDMAC_2_DEI9,
RTDMAC_3_DEI10, RTDMAC_3_DEI11,
FRC, GCU, LCDC1, CSIRX,
DSITX0_DSITX00, DSITX0_DSITX01,
SPU2_SPU0, SPU2_SPU1, FSI,
TMU1_TUNI10, TMU1_TUNI11, TMU1_TUNI12,
TSIF2, CMT4, MFIS2, CPORTS2R, TSG, DMASCH1, SCUW,
VIO60, VIO61, CEU21, CSI21, DSITX1_DSITX10, DSITX1_DSITX11,
DISP, DSRV, EMUX2_EMUX20I, EMUX2_EMUX21I,
MSTIF0_MST00I, MSTIF0_MST01I, MSTIF1_MST10I, MSTIF1_MST11I,
SPUV,
/* interrupt groups INTCS */
RTDMAC_0, RTDMAC_1, RTDMAC_2, RTDMAC_3,
DSITX0, SPU2, TMU1, MSU,
};
static struct intc_vect intcs_vectors[] = {
INTCS_VECT(PINTCS_PINT1, 0x0600), INTCS_VECT(PINTCS_PINT2, 0x0620),
INTCS_VECT(RTDMAC_0_DEI0, 0x0800), INTCS_VECT(RTDMAC_0_DEI1, 0x0820),
INTCS_VECT(RTDMAC_0_DEI2, 0x0840), INTCS_VECT(RTDMAC_0_DEI3, 0x0860),
INTCS_VECT(CEU, 0x0880), INTCS_VECT(MFI, 0x0900),
INTCS_VECT(BBIF2, 0x0960), INTCS_VECT(VPU, 0x0980),
INTCS_VECT(TSIF1, 0x09a0), INTCS_VECT(_3DG_SGX543, 0x09e0),
INTCS_VECT(_2DDMAC_2DDM0, 0x0a00),
INTCS_VECT(RTDMAC_1_DEI4, 0x0b80), INTCS_VECT(RTDMAC_1_DEI5, 0x0ba0),
INTCS_VECT(RTDMAC_1_DADERR, 0x0bc0),
INTCS_VECT(KEYSC_KEY, 0x0be0), INTCS_VECT(VINT, 0x0c80),
INTCS_VECT(MSIOF, 0x0d20),
INTCS_VECT(TMU0_TUNI00, 0x0e80), INTCS_VECT(TMU0_TUNI01, 0x0ea0),
INTCS_VECT(TMU0_TUNI02, 0x0ec0),
INTCS_VECT(CMT0, 0x0f00), INTCS_VECT(TSIF0, 0x0f20),
INTCS_VECT(CMT2, 0x0f40), INTCS_VECT(LMB, 0x0f60),
INTCS_VECT(MSUG, 0x0f80),
INTCS_VECT(MSU_MSU, 0x0fa0), INTCS_VECT(MSU_MSU2, 0x0fc0),
INTCS_VECT(CTI, 0x0400), INTCS_VECT(RWDT0, 0x0440),
INTCS_VECT(ICB, 0x0480), INTCS_VECT(PEP, 0x04a0),
INTCS_VECT(ASA, 0x04c0), INTCS_VECT(JPU_JPEG, 0x0560),
INTCS_VECT(LCDC, 0x0580), INTCS_VECT(LCRC, 0x05a0),
INTCS_VECT(RTDMAC_2_DEI6, 0x1300), INTCS_VECT(RTDMAC_2_DEI7, 0x1320),
INTCS_VECT(RTDMAC_2_DEI8, 0x1340), INTCS_VECT(RTDMAC_2_DEI9, 0x1360),
INTCS_VECT(RTDMAC_3_DEI10, 0x1380), INTCS_VECT(RTDMAC_3_DEI11, 0x13a0),
INTCS_VECT(FRC, 0x1700), INTCS_VECT(GCU, 0x1760),
INTCS_VECT(LCDC1, 0x1780), INTCS_VECT(CSIRX, 0x17a0),
INTCS_VECT(DSITX0_DSITX00, 0x17c0), INTCS_VECT(DSITX0_DSITX01, 0x17e0),
INTCS_VECT(SPU2_SPU0, 0x1800), INTCS_VECT(SPU2_SPU1, 0x1820),
INTCS_VECT(FSI, 0x1840),
INTCS_VECT(TMU1_TUNI10, 0x1900), INTCS_VECT(TMU1_TUNI11, 0x1920),
INTCS_VECT(TMU1_TUNI12, 0x1940),
INTCS_VECT(TSIF2, 0x1960), INTCS_VECT(CMT4, 0x1980),
INTCS_VECT(MFIS2, 0x1a00), INTCS_VECT(CPORTS2R, 0x1a20),
INTCS_VECT(TSG, 0x1ae0), INTCS_VECT(DMASCH1, 0x1b00),
INTCS_VECT(SCUW, 0x1b40),
INTCS_VECT(VIO60, 0x1b60), INTCS_VECT(VIO61, 0x1b80),
INTCS_VECT(CEU21, 0x1ba0), INTCS_VECT(CSI21, 0x1be0),
INTCS_VECT(DSITX1_DSITX10, 0x1c00), INTCS_VECT(DSITX1_DSITX11, 0x1c20),
INTCS_VECT(DISP, 0x1c40), INTCS_VECT(DSRV, 0x1c60),
INTCS_VECT(EMUX2_EMUX20I, 0x1c80), INTCS_VECT(EMUX2_EMUX21I, 0x1ca0),
INTCS_VECT(MSTIF0_MST00I, 0x1cc0), INTCS_VECT(MSTIF0_MST01I, 0x1ce0),
INTCS_VECT(MSTIF1_MST10I, 0x1d00), INTCS_VECT(MSTIF1_MST11I, 0x1d20),
INTCS_VECT(SPUV, 0x2300),
};
static struct intc_group intcs_groups[] __initdata = {
INTC_GROUP(RTDMAC_0, RTDMAC_0_DEI0, RTDMAC_0_DEI1,
RTDMAC_0_DEI2, RTDMAC_0_DEI3),
INTC_GROUP(RTDMAC_1, RTDMAC_1_DEI4, RTDMAC_1_DEI5, RTDMAC_1_DADERR),
INTC_GROUP(RTDMAC_2, RTDMAC_2_DEI6, RTDMAC_2_DEI7,
RTDMAC_2_DEI8, RTDMAC_2_DEI9),
INTC_GROUP(RTDMAC_3, RTDMAC_3_DEI10, RTDMAC_3_DEI11),
INTC_GROUP(TMU1, TMU1_TUNI12, TMU1_TUNI11, TMU1_TUNI10),
INTC_GROUP(DSITX0, DSITX0_DSITX00, DSITX0_DSITX01),
INTC_GROUP(SPU2, SPU2_SPU0, SPU2_SPU1),
INTC_GROUP(MSU, MSU_MSU, MSU_MSU2),
};
static struct intc_mask_reg intcs_mask_registers[] = {
{ 0xffd20184, 0xffd201c4, 8, /* IMR1SA / IMCR1SA */
{ 0, 0, 0, CEU,
0, 0, 0, 0 } },
{ 0xffd20188, 0xffd201c8, 8, /* IMR2SA / IMCR2SA */
{ 0, 0, 0, VPU,
BBIF2, 0, 0, MFI } },
{ 0xffd2018c, 0xffd201cc, 8, /* IMR3SA / IMCR3SA */
{ 0, 0, 0, _2DDMAC_2DDM0,
0, ASA, PEP, ICB } },
{ 0xffd20190, 0xffd201d0, 8, /* IMR4SA / IMCR4SA */
{ 0, 0, 0, CTI,
JPU_JPEG, 0, LCRC, LCDC } },
{ 0xffd20194, 0xffd201d4, 8, /* IMR5SA / IMCR5SA */
{ KEYSC_KEY, RTDMAC_1_DADERR, RTDMAC_1_DEI5, RTDMAC_1_DEI4,
RTDMAC_0_DEI3, RTDMAC_0_DEI2, RTDMAC_0_DEI1, RTDMAC_0_DEI0 } },
{ 0xffd20198, 0xffd201d8, 8, /* IMR6SA / IMCR6SA */
{ 0, 0, MSIOF, 0,
_3DG_SGX543, 0, 0, 0 } },
{ 0xffd2019c, 0xffd201dc, 8, /* IMR7SA / IMCR7SA */
{ 0, TMU0_TUNI02, TMU0_TUNI01, TMU0_TUNI00,
0, 0, 0, 0 } },
{ 0xffd201a0, 0xffd201e0, 8, /* IMR8SA / IMCR8SA */
{ 0, 0, 0, 0,
0, MSU_MSU, MSU_MSU2, MSUG } },
{ 0xffd201a4, 0xffd201e4, 8, /* IMR9SA / IMCR9SA */
{ 0, RWDT0, CMT2, CMT0,
0, 0, 0, 0 } },
{ 0xffd201ac, 0xffd201ec, 8, /* IMR11SA / IMCR11SA */
{ 0, 0, 0, 0,
0, TSIF1, LMB, TSIF0 } },
{ 0xffd201b0, 0xffd201f0, 8, /* IMR12SA / IMCR12SA */
{ 0, 0, 0, 0,
0, 0, PINTCS_PINT2, PINTCS_PINT1 } },
{ 0xffd50180, 0xffd501c0, 8, /* IMR0SA3 / IMCR0SA3 */
{ RTDMAC_2_DEI6, RTDMAC_2_DEI7, RTDMAC_2_DEI8, RTDMAC_2_DEI9,
RTDMAC_3_DEI10, RTDMAC_3_DEI11, 0, 0 } },
{ 0xffd50190, 0xffd501d0, 8, /* IMR4SA3 / IMCR4SA3 */
{ FRC, 0, 0, GCU,
LCDC1, CSIRX, DSITX0_DSITX00, DSITX0_DSITX01 } },
{ 0xffd50194, 0xffd501d4, 8, /* IMR5SA3 / IMCR5SA3 */
{ SPU2_SPU0, SPU2_SPU1, FSI, 0,
0, 0, 0, 0 } },
{ 0xffd50198, 0xffd501d8, 8, /* IMR6SA3 / IMCR6SA3 */
{ TMU1_TUNI10, TMU1_TUNI11, TMU1_TUNI12, 0,
TSIF2, CMT4, 0, 0 } },
{ 0xffd5019c, 0xffd501dc, 8, /* IMR7SA3 / IMCR7SA3 */
{ MFIS2, CPORTS2R, 0, 0,
0, 0, 0, TSG } },
{ 0xffd501a0, 0xffd501e0, 8, /* IMR8SA3 / IMCR8SA3 */
{ DMASCH1, 0, SCUW, VIO60,
VIO61, CEU21, 0, CSI21 } },
{ 0xffd501a4, 0xffd501e4, 8, /* IMR9SA3 / IMCR9SA3 */
{ DSITX1_DSITX10, DSITX1_DSITX11, DISP, DSRV,
EMUX2_EMUX20I, EMUX2_EMUX21I, MSTIF0_MST00I, MSTIF0_MST01I } },
{ 0xffd501a8, 0xffd501e8, 8, /* IMR10SA3 / IMCR10SA3 */
{ MSTIF0_MST00I, MSTIF0_MST01I, 0, 0,
0, 0, 0, 0 } },
{ 0xffd60180, 0xffd601c0, 8, /* IMR0SA4 / IMCR0SA4 */
{ SPUV, 0, 0, 0,
0, 0, 0, 0 } },
};
/* Priority is needed for INTCA to receive the INTCS interrupt */
static struct intc_prio_reg intcs_prio_registers[] = {
{ 0xffd20000, 0, 16, 4, /* IPRAS */ { CTI, 0, _2DDMAC_2DDM0, ICB } },
{ 0xffd20004, 0, 16, 4, /* IPRBS */ { JPU_JPEG, LCDC, 0, LCRC } },
{ 0xffd20008, 0, 16, 4, /* IPRCS */ { BBIF2, 0, 0, 0 } },
{ 0xffd2000c, 0, 16, 4, /* IPRDS */ { PINTCS_PINT1, PINTCS_PINT2,
0, 0 } },
{ 0xffd20010, 0, 16, 4, /* IPRES */ { RTDMAC_0, CEU, MFI, VPU } },
{ 0xffd20014, 0, 16, 4, /* IPRFS */ { KEYSC_KEY, RTDMAC_1,
CMT2, CMT0 } },
{ 0xffd20018, 0, 16, 4, /* IPRGS */ { TMU0_TUNI00, TMU0_TUNI01,
TMU0_TUNI02, TSIF1 } },
{ 0xffd2001c, 0, 16, 4, /* IPRHS */ { VINT, 0, 0, 0 } },
{ 0xffd20020, 0, 16, 4, /* IPRIS */ { 0, MSIOF, TSIF0, 0 } },
{ 0xffd20024, 0, 16, 4, /* IPRJS */ { 0, _3DG_SGX543, MSUG, MSU } },
{ 0xffd20028, 0, 16, 4, /* IPRKS */ { 0, ASA, LMB, PEP } },
{ 0xffd20030, 0, 16, 4, /* IPRMS */ { 0, 0, 0, RWDT0 } },
{ 0xffd50000, 0, 16, 4, /* IPRAS3 */ { RTDMAC_2, 0, 0, 0 } },
{ 0xffd50004, 0, 16, 4, /* IPRBS3 */ { RTDMAC_3, 0, 0, 0 } },
{ 0xffd50020, 0, 16, 4, /* IPRIS3 */ { FRC, 0, 0, 0 } },
{ 0xffd50024, 0, 16, 4, /* IPRJS3 */ { LCDC1, CSIRX, DSITX0, 0 } },
{ 0xffd50028, 0, 16, 4, /* IPRKS3 */ { SPU2, 0, FSI, 0 } },
{ 0xffd50030, 0, 16, 4, /* IPRMS3 */ { TMU1, 0, 0, TSIF2 } },
{ 0xffd50034, 0, 16, 4, /* IPRNS3 */ { CMT4, 0, 0, 0 } },
{ 0xffd50038, 0, 16, 4, /* IPROS3 */ { MFIS2, CPORTS2R, 0, 0 } },
{ 0xffd50040, 0, 16, 4, /* IPRQS3 */ { DMASCH1, 0, SCUW, VIO60 } },
{ 0xffd50044, 0, 16, 4, /* IPRRS3 */ { VIO61, CEU21, 0, CSI21 } },
{ 0xffd50048, 0, 16, 4, /* IPRSS3 */ { DSITX1_DSITX10, DSITX1_DSITX11,
DISP, DSRV } },
{ 0xffd5004c, 0, 16, 4, /* IPRTS3 */ { EMUX2_EMUX20I, EMUX2_EMUX21I,
MSTIF0_MST00I, MSTIF0_MST01I } },
{ 0xffd50050, 0, 16, 4, /* IPRUS3 */ { MSTIF1_MST10I, MSTIF1_MST11I,
0, 0 } },
{ 0xffd60000, 0, 16, 4, /* IPRAS4 */ { SPUV, 0, 0, 0 } },
};
static struct resource intcs_resources[] __initdata = {
[0] = {
.start = 0xffd20000,
.end = 0xffd201ff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = 0xffd50000,
.end = 0xffd501ff,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = 0xffd60000,
.end = 0xffd601ff,
.flags = IORESOURCE_MEM,
}
};
static struct intc_desc intcs_desc __initdata = {
.name = "sh73a0-intcs",
.resource = intcs_resources,
.num_resources = ARRAY_SIZE(intcs_resources),
.hw = INTC_HW_DESC(intcs_vectors, intcs_groups, intcs_mask_registers,
intcs_prio_registers, NULL, NULL),
};
static struct irqaction sh73a0_intcs_cascade;
static irqreturn_t sh73a0_intcs_demux(int irq, void *dev_id)
{
unsigned int evtcodeas = ioread32((void __iomem *)dev_id);
generic_handle_irq(intcs_evt2irq(evtcodeas));
return IRQ_HANDLED;
}
static int sh73a0_set_wake(struct irq_data *data, unsigned int on)
{
return 0; /* always allow wakeup */
}
#define RELOC_BASE 0x1000
/* INTCA IRQ pins at INTCS + 0x1000 to make space for GIC+INTC handling */
#define INTCS_VECT_RELOC(n, vect) INTCS_VECT((n), (vect) + RELOC_BASE)
INTC_IRQ_PINS_32(intca_irq_pins, 0xe6900000,
INTCS_VECT_RELOC, "sh73a0-intca-irq-pins");
static int to_gic_irq(struct irq_data *data)
{
unsigned int vect = irq2evt(data->irq) - INTCS_VECT_BASE;
if (vect >= 0x3200)
vect -= 0x3000;
else
vect -= 0x0200;
return gic_spi((vect >> 5) + 1);
}
static int to_intca_reloc_irq(struct irq_data *data)
{
return data->irq + (RELOC_BASE >> 5);
}
#define irq_cb(cb, irq) irq_get_chip(irq)->cb(irq_get_irq_data(irq))
#define irq_cbp(cb, irq, p...) irq_get_chip(irq)->cb(irq_get_irq_data(irq), p)
static void intca_gic_enable(struct irq_data *data)
{
irq_cb(irq_unmask, to_intca_reloc_irq(data));
irq_cb(irq_unmask, to_gic_irq(data));
}
static void intca_gic_disable(struct irq_data *data)
{
irq_cb(irq_mask, to_gic_irq(data));
irq_cb(irq_mask, to_intca_reloc_irq(data));
}
static void intca_gic_mask_ack(struct irq_data *data)
{
irq_cb(irq_mask, to_gic_irq(data));
irq_cb(irq_mask_ack, to_intca_reloc_irq(data));
}
static void intca_gic_eoi(struct irq_data *data)
{
irq_cb(irq_eoi, to_gic_irq(data));
}
static int intca_gic_set_type(struct irq_data *data, unsigned int type)
{
return irq_cbp(irq_set_type, to_intca_reloc_irq(data), type);
}
static int intca_gic_set_wake(struct irq_data *data, unsigned int on)
{
return irq_cbp(irq_set_wake, to_intca_reloc_irq(data), on);
}
#ifdef CONFIG_SMP
static int intca_gic_set_affinity(struct irq_data *data,
const struct cpumask *cpumask,
bool force)
{
return irq_cbp(irq_set_affinity, to_gic_irq(data), cpumask, force);
}
#endif
struct irq_chip intca_gic_irq_chip = {
.name = "INTCA-GIC",
.irq_mask = intca_gic_disable,
.irq_unmask = intca_gic_enable,
.irq_mask_ack = intca_gic_mask_ack,
.irq_eoi = intca_gic_eoi,
.irq_enable = intca_gic_enable,
.irq_disable = intca_gic_disable,
.irq_shutdown = intca_gic_disable,
.irq_set_type = intca_gic_set_type,
.irq_set_wake = intca_gic_set_wake,
#ifdef CONFIG_SMP
.irq_set_affinity = intca_gic_set_affinity,
#endif
};
static int to_intc_vect(int irq)
{
unsigned int irq_pin = irq - gic_spi(1);
unsigned int offs;
if (irq_pin < 16)
offs = 0x0200;
else
offs = 0x3000;
return offs + (irq_pin << 5);
}
static irqreturn_t sh73a0_irq_pin_demux(int irq, void *dev_id)
{
generic_handle_irq(intcs_evt2irq(to_intc_vect(irq)));
return IRQ_HANDLED;
}
static struct irqaction sh73a0_irq_pin_cascade[32];
#define PINTER0 0xe69000a0
#define PINTER1 0xe69000a4
#define PINTRR0 0xe69000d0
#define PINTRR1 0xe69000d4
#define PINT0A_IRQ(n, irq) INTC_IRQ((n), SH73A0_PINT0_IRQ(irq))
#define PINT0B_IRQ(n, irq) INTC_IRQ((n), SH73A0_PINT0_IRQ(irq + 8))
#define PINT0C_IRQ(n, irq) INTC_IRQ((n), SH73A0_PINT0_IRQ(irq + 16))
#define PINT0D_IRQ(n, irq) INTC_IRQ((n), SH73A0_PINT0_IRQ(irq + 24))
#define PINT1E_IRQ(n, irq) INTC_IRQ((n), SH73A0_PINT1_IRQ(irq))
INTC_PINT(intc_pint0, PINTER0, 0xe69000b0, "sh73a0-pint0", \
INTC_PINT_E(A), INTC_PINT_E(B), INTC_PINT_E(C), INTC_PINT_E(D), \
INTC_PINT_V(A, PINT0A_IRQ), INTC_PINT_V(B, PINT0B_IRQ), \
INTC_PINT_V(C, PINT0C_IRQ), INTC_PINT_V(D, PINT0D_IRQ), \
INTC_PINT_E(A), INTC_PINT_E(B), INTC_PINT_E(C), INTC_PINT_E(D), \
INTC_PINT_E(A), INTC_PINT_E(B), INTC_PINT_E(C), INTC_PINT_E(D));
INTC_PINT(intc_pint1, PINTER1, 0xe69000c0, "sh73a0-pint1", \
INTC_PINT_E(E), INTC_PINT_E_EMPTY, INTC_PINT_E_EMPTY, INTC_PINT_E_EMPTY, \
INTC_PINT_V(E, PINT1E_IRQ), INTC_PINT_V_NONE, \
INTC_PINT_V_NONE, INTC_PINT_V_NONE, \
INTC_PINT_E_NONE, INTC_PINT_E_NONE, INTC_PINT_E_NONE, INTC_PINT_E(E), \
INTC_PINT_E(E), INTC_PINT_E_NONE, INTC_PINT_E_NONE, INTC_PINT_E_NONE);
static struct irqaction sh73a0_pint0_cascade;
static struct irqaction sh73a0_pint1_cascade;
static void pint_demux(unsigned long rr, unsigned long er, int base_irq)
{
unsigned long value = ioread32(rr) & ioread32(er);
int k;
for (k = 0; k < 32; k++) {
if (value & (1 << (31 - k))) {
generic_handle_irq(base_irq + k);
iowrite32(~(1 << (31 - k)), rr);
}
}
}
static irqreturn_t sh73a0_pint0_demux(int irq, void *dev_id)
{
pint_demux(PINTRR0, PINTER0, SH73A0_PINT0_IRQ(0));
return IRQ_HANDLED;
}
static irqreturn_t sh73a0_pint1_demux(int irq, void *dev_id)
{
pint_demux(PINTRR1, PINTER1, SH73A0_PINT1_IRQ(0));
return IRQ_HANDLED;
}
void __init sh73a0_init_irq(void)
{
void __iomem *gic_dist_base = __io(0xf0001000);
void __iomem *gic_cpu_base = __io(0xf0000100);
void __iomem *intevtsa = ioremap_nocache(0xffd20100, PAGE_SIZE);
int k, n;
gic_init(0, 29, gic_dist_base, gic_cpu_base);
gic_arch_extn.irq_set_wake = sh73a0_set_wake;
register_intc_controller(&intcs_desc);
register_intc_controller(&intca_irq_pins_desc);
register_intc_controller(&intc_pint0_desc);
register_intc_controller(&intc_pint1_desc);
/* demux using INTEVTSA */
sh73a0_intcs_cascade.name = "INTCS cascade";
sh73a0_intcs_cascade.handler = sh73a0_intcs_demux;
sh73a0_intcs_cascade.dev_id = intevtsa;
setup_irq(gic_spi(50), &sh73a0_intcs_cascade);
/* IRQ pins require special handling through INTCA and GIC */
for (k = 0; k < 32; k++) {
sh73a0_irq_pin_cascade[k].name = "INTCA-GIC cascade";
sh73a0_irq_pin_cascade[k].handler = sh73a0_irq_pin_demux;
setup_irq(gic_spi(1 + k), &sh73a0_irq_pin_cascade[k]);
n = intcs_evt2irq(to_intc_vect(gic_spi(1 + k)));
irq_set_chip_and_handler_name(n, &intca_gic_irq_chip,
handle_level_irq, "level");
set_irq_flags(n, IRQF_VALID); /* yuck */
}
/* PINT pins are sanely tied to the GIC as SPI */
sh73a0_pint0_cascade.name = "PINT0 cascade";
sh73a0_pint0_cascade.handler = sh73a0_pint0_demux;
setup_irq(gic_spi(33), &sh73a0_pint0_cascade);
sh73a0_pint1_cascade.name = "PINT1 cascade";
sh73a0_pint1_cascade.handler = sh73a0_pint1_demux;
setup_irq(gic_spi(34), &sh73a0_pint1_cascade);
}
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