ARM: mach-shmobile: r8a7740: add INTC support

R8A7740 GIC can not get external IRQx interrupt directly
without GIC - INTC demux support.

Current AG5 is using GIC - INTCS demux with
special irq relocation. but GIC - INTCA demux
is still not supported and it needs irq number re-mapping.

OTOH, normal INTC support as before is very enough for R8A7740,
because it is not SMP CPU.
This patch adds INTCA/INTCS support instead of GIC.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

4 files changed, 614 insertions, 29 deletions

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 329a3cb7f99b..aa63c968f420 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -33,7 +33,6 @@ config ARCH_R8A7740
 	select CPU_V7
 	select SH_CLK_CPG
 	select ARCH_WANT_OPTIONAL_GPIOLIB
-	select ARM_GIC
 
 comment "SH-Mobile Board Type"
 
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 2bd2d3ba8ffe..971f7038f05a 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -31,7 +31,7 @@ obj-$(CONFIG_ARCH_SH7367)	+= entry-intc.o
 obj-$(CONFIG_ARCH_SH7377)	+= entry-intc.o
 obj-$(CONFIG_ARCH_SH7372)	+= entry-intc.o
 obj-$(CONFIG_ARCH_SH73A0)	+= entry-gic.o
-obj-$(CONFIG_ARCH_R8A7740)	+= entry-gic.o
+obj-$(CONFIG_ARCH_R8A7740)	+= entry-intc.o
 
 # PM objects
 obj-$(CONFIG_SUSPEND)		+= suspend.o
diff --git a/arch/arm/mach-shmobile/intc-r8a7740.c b/arch/arm/mach-shmobile/intc-r8a7740.c
index c62a2059f2f7..272c84c20c83 100644
--- a/arch/arm/mach-shmobile/intc-r8a7740.c
+++ b/arch/arm/mach-shmobile/intc-r8a7740.c
@@ -18,28 +18,614 @@
  * 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 <asm/hardware/gic.h>
+#include <linux/sh_intc.h>
+#include <mach/intc.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
 
-#define INTA_CTRL	0xe605807c
+/*
+ *		INTCA
+ */
+enum {
+	UNUSED_INTCA = 0,
+
+	/* interrupt sources INTCA */
+	DIRC,
+	ATAPI,
+	IIC1_ALI, IIC1_TACKI, IIC1_WAITI, IIC1_DTEI,
+	AP_ARM_COMMTX, AP_ARM_COMMRX,
+	MFI, MFIS,
+	BBIF1, BBIF2,
+	USBHSDMAC,
+	USBF_OUL_SOF, USBF_IXL_INT,
+	SGX540,
+	CMT1_0, CMT1_1, CMT1_2, CMT1_3,
+	CMT2,
+	CMT3,
+	KEYSC,
+	SCIFA0, SCIFA1, SCIFA2, SCIFA3,
+	MSIOF2, MSIOF1,
+	SCIFA4, SCIFA5, SCIFB,
+	FLCTL_FLSTEI, FLCTL_FLTENDI, FLCTL_FLTREQ0I, FLCTL_FLTREQ1I,
+	SDHI0_0, SDHI0_1, SDHI0_2, SDHI0_3,
+	SDHI1_0, SDHI1_1, SDHI1_2, SDHI1_3,
+	AP_ARM_L2CINT,
+	IRDA,
+	TPU0,
+	SCIFA6, SCIFA7,
+	GbEther,
+	ICBS0,
+	DDM,
+	SDHI2_0, SDHI2_1, SDHI2_2, SDHI2_3,
+	RWDT0,
+	DMAC1_1_DEI0, DMAC1_1_DEI1, DMAC1_1_DEI2, DMAC1_1_DEI3,
+	DMAC1_2_DEI4, DMAC1_2_DEI5, DMAC1_2_DADERR,
+	DMAC2_1_DEI0, DMAC2_1_DEI1, DMAC2_1_DEI2, DMAC2_1_DEI3,
+	DMAC2_2_DEI4, DMAC2_2_DEI5, DMAC2_2_DADERR,
+	DMAC3_1_DEI0, DMAC3_1_DEI1, DMAC3_1_DEI2, DMAC3_1_DEI3,
+	DMAC3_2_DEI4, DMAC3_2_DEI5, DMAC3_2_DADERR,
+	SHWYSTAT_RT, SHWYSTAT_HS, SHWYSTAT_COM,
+	USBH_INT, USBH_OHCI, USBH_EHCI, USBH_PME, USBH_BIND,
+	RSPI_OVRF, RSPI_SPTEF, RSPI_SPRF,
+	SPU2_0, SPU2_1,
+	FSI, FMSI,
+	IPMMU,
+	AP_ARM_CTIIRQ, AP_ARM_PMURQ,
+	MFIS2,
+	CPORTR2S,
+	CMT14, CMT15,
+	MMCIF_0, MMCIF_1, MMCIF_2,
+	SIM_ERI, SIM_RXI, SIM_TXI, SIM_TEI,
+	STPRO_0, STPRO_1, STPRO_2, STPRO_3, STPRO_4,
+
+	/* interrupt groups INTCA */
+	DMAC1_1, DMAC1_2,
+	DMAC2_1, DMAC2_2,
+	DMAC3_1, DMAC3_2,
+	AP_ARM1, AP_ARM2,
+	SDHI0, SDHI1, SDHI2,
+	SHWYSTAT,
+	USBF, USBH1, USBH2,
+	RSPI, SPU2, FLCTL, IIC1,
+};
+
+static struct intc_vect intca_vectors[] __initdata = {
+	INTC_VECT(DIRC,			0x0560),
+	INTC_VECT(ATAPI,		0x05E0),
+	INTC_VECT(IIC1_ALI,		0x0780),
+	INTC_VECT(IIC1_TACKI,		0x07A0),
+	INTC_VECT(IIC1_WAITI,		0x07C0),
+	INTC_VECT(IIC1_DTEI,		0x07E0),
+	INTC_VECT(AP_ARM_COMMTX,	0x0840),
+	INTC_VECT(AP_ARM_COMMRX,	0x0860),
+	INTC_VECT(MFI,			0x0900),
+	INTC_VECT(MFIS,			0x0920),
+	INTC_VECT(BBIF1,		0x0940),
+	INTC_VECT(BBIF2,		0x0960),
+	INTC_VECT(USBHSDMAC,		0x0A00),
+	INTC_VECT(USBF_OUL_SOF,		0x0A20),
+	INTC_VECT(USBF_IXL_INT,		0x0A40),
+	INTC_VECT(SGX540,		0x0A60),
+	INTC_VECT(CMT1_0,		0x0B00),
+	INTC_VECT(CMT1_1,		0x0B20),
+	INTC_VECT(CMT1_2,		0x0B40),
+	INTC_VECT(CMT1_3,		0x0B60),
+	INTC_VECT(CMT2,			0x0B80),
+	INTC_VECT(CMT3,			0x0BA0),
+	INTC_VECT(KEYSC,		0x0BE0),
+	INTC_VECT(SCIFA0,		0x0C00),
+	INTC_VECT(SCIFA1,		0x0C20),
+	INTC_VECT(SCIFA2,		0x0C40),
+	INTC_VECT(SCIFA3,		0x0C60),
+	INTC_VECT(MSIOF2,		0x0C80),
+	INTC_VECT(MSIOF1,		0x0D00),
+	INTC_VECT(SCIFA4,		0x0D20),
+	INTC_VECT(SCIFA5,		0x0D40),
+	INTC_VECT(SCIFB,		0x0D60),
+	INTC_VECT(FLCTL_FLSTEI,		0x0D80),
+	INTC_VECT(FLCTL_FLTENDI,	0x0DA0),
+	INTC_VECT(FLCTL_FLTREQ0I,	0x0DC0),
+	INTC_VECT(FLCTL_FLTREQ1I,	0x0DE0),
+	INTC_VECT(SDHI0_0,		0x0E00),
+	INTC_VECT(SDHI0_1,		0x0E20),
+	INTC_VECT(SDHI0_2,		0x0E40),
+	INTC_VECT(SDHI0_3,		0x0E60),
+	INTC_VECT(SDHI1_0,		0x0E80),
+	INTC_VECT(SDHI1_1,		0x0EA0),
+	INTC_VECT(SDHI1_2,		0x0EC0),
+	INTC_VECT(SDHI1_3,		0x0EE0),
+	INTC_VECT(AP_ARM_L2CINT,	0x0FA0),
+	INTC_VECT(IRDA,			0x0480),
+	INTC_VECT(TPU0,			0x04A0),
+	INTC_VECT(SCIFA6,		0x04C0),
+	INTC_VECT(SCIFA7,		0x04E0),
+	INTC_VECT(GbEther,		0x0500),
+	INTC_VECT(ICBS0,		0x0540),
+	INTC_VECT(DDM,			0x1140),
+	INTC_VECT(SDHI2_0,		0x1200),
+	INTC_VECT(SDHI2_1,		0x1220),
+	INTC_VECT(SDHI2_2,		0x1240),
+	INTC_VECT(SDHI2_3,		0x1260),
+	INTC_VECT(RWDT0,		0x1280),
+	INTC_VECT(DMAC1_1_DEI0,		0x2000),
+	INTC_VECT(DMAC1_1_DEI1,		0x2020),
+	INTC_VECT(DMAC1_1_DEI2,		0x2040),
+	INTC_VECT(DMAC1_1_DEI3,		0x2060),
+	INTC_VECT(DMAC1_2_DEI4,		0x2080),
+	INTC_VECT(DMAC1_2_DEI5,		0x20A0),
+	INTC_VECT(DMAC1_2_DADERR,	0x20C0),
+	INTC_VECT(DMAC2_1_DEI0,		0x2100),
+	INTC_VECT(DMAC2_1_DEI1,		0x2120),
+	INTC_VECT(DMAC2_1_DEI2,		0x2140),
+	INTC_VECT(DMAC2_1_DEI3,		0x2160),
+	INTC_VECT(DMAC2_2_DEI4,		0x2180),
+	INTC_VECT(DMAC2_2_DEI5,		0x21A0),
+	INTC_VECT(DMAC2_2_DADERR,	0x21C0),
+	INTC_VECT(DMAC3_1_DEI0,		0x2200),
+	INTC_VECT(DMAC3_1_DEI1,		0x2220),
+	INTC_VECT(DMAC3_1_DEI2,		0x2240),
+	INTC_VECT(DMAC3_1_DEI3,		0x2260),
+	INTC_VECT(DMAC3_2_DEI4,		0x2280),
+	INTC_VECT(DMAC3_2_DEI5,		0x22A0),
+	INTC_VECT(DMAC3_2_DADERR,	0x22C0),
+	INTC_VECT(SHWYSTAT_RT,		0x1300),
+	INTC_VECT(SHWYSTAT_HS,		0x1320),
+	INTC_VECT(SHWYSTAT_COM,		0x1340),
+	INTC_VECT(USBH_INT,		0x1540),
+	INTC_VECT(USBH_OHCI,		0x1560),
+	INTC_VECT(USBH_EHCI,		0x1580),
+	INTC_VECT(USBH_PME,		0x15A0),
+	INTC_VECT(USBH_BIND,		0x15C0),
+	INTC_VECT(RSPI_OVRF,		0x1780),
+	INTC_VECT(RSPI_SPTEF,		0x17A0),
+	INTC_VECT(RSPI_SPRF,		0x17C0),
+	INTC_VECT(SPU2_0,		0x1800),
+	INTC_VECT(SPU2_1,		0x1820),
+	INTC_VECT(FSI,			0x1840),
+	INTC_VECT(FMSI,			0x1860),
+	INTC_VECT(IPMMU,		0x1920),
+	INTC_VECT(AP_ARM_CTIIRQ,	0x1980),
+	INTC_VECT(AP_ARM_PMURQ,		0x19A0),
+	INTC_VECT(MFIS2,		0x1A00),
+	INTC_VECT(CPORTR2S,		0x1A20),
+	INTC_VECT(CMT14,		0x1A40),
+	INTC_VECT(CMT15,		0x1A60),
+	INTC_VECT(MMCIF_0,		0x1AA0),
+	INTC_VECT(MMCIF_1,		0x1AC0),
+	INTC_VECT(MMCIF_2,		0x1AE0),
+	INTC_VECT(SIM_ERI,		0x1C00),
+	INTC_VECT(SIM_RXI,		0x1C20),
+	INTC_VECT(SIM_TXI,		0x1C40),
+	INTC_VECT(SIM_TEI,		0x1C60),
+	INTC_VECT(STPRO_0,		0x1C80),
+	INTC_VECT(STPRO_1,		0x1CA0),
+	INTC_VECT(STPRO_2,		0x1CC0),
+	INTC_VECT(STPRO_3,		0x1CE0),
+	INTC_VECT(STPRO_4,		0x1D00),
+};
+
+static struct intc_group intca_groups[] __initdata = {
+	INTC_GROUP(DMAC1_1,
+		   DMAC1_1_DEI0, DMAC1_1_DEI1, DMAC1_1_DEI2, DMAC1_1_DEI3),
+	INTC_GROUP(DMAC1_2,
+		   DMAC1_2_DEI4, DMAC1_2_DEI5, DMAC1_2_DADERR),
+	INTC_GROUP(DMAC2_1,
+		   DMAC2_1_DEI0, DMAC2_1_DEI1, DMAC2_1_DEI2, DMAC2_1_DEI3),
+	INTC_GROUP(DMAC2_2,
+		   DMAC2_2_DEI4, DMAC2_2_DEI5, DMAC2_2_DADERR),
+	INTC_GROUP(DMAC3_1,
+		   DMAC3_1_DEI0, DMAC3_1_DEI1, DMAC3_1_DEI2, DMAC3_1_DEI3),
+	INTC_GROUP(DMAC3_2,
+		   DMAC3_2_DEI4, DMAC3_2_DEI5, DMAC3_2_DADERR),
+	INTC_GROUP(AP_ARM1,
+		   AP_ARM_COMMTX, AP_ARM_COMMRX),
+	INTC_GROUP(AP_ARM2,
+		   AP_ARM_CTIIRQ, AP_ARM_PMURQ),
+	INTC_GROUP(USBF,
+		   USBF_OUL_SOF, USBF_IXL_INT),
+	INTC_GROUP(SDHI0,
+		   SDHI0_0, SDHI0_1, SDHI0_2, SDHI0_3),
+	INTC_GROUP(SDHI1,
+		   SDHI1_0, SDHI1_1, SDHI1_2, SDHI1_3),
+	INTC_GROUP(SDHI2,
+		   SDHI2_0, SDHI2_1, SDHI2_2, SDHI2_3),
+	INTC_GROUP(SHWYSTAT,
+		   SHWYSTAT_RT, SHWYSTAT_HS, SHWYSTAT_COM),
+	INTC_GROUP(USBH1, /* FIXME */
+		   USBH_INT, USBH_OHCI),
+	INTC_GROUP(USBH2, /* FIXME */
+		   USBH_EHCI,
+		   USBH_PME, USBH_BIND),
+	INTC_GROUP(RSPI,
+		   RSPI_OVRF, RSPI_SPTEF, RSPI_SPRF),
+	INTC_GROUP(SPU2,
+		   SPU2_0, SPU2_1),
+	INTC_GROUP(FLCTL,
+		   FLCTL_FLSTEI, FLCTL_FLTENDI, FLCTL_FLTREQ0I, FLCTL_FLTREQ1I),
+	INTC_GROUP(IIC1,
+		   IIC1_ALI, IIC1_TACKI, IIC1_WAITI, IIC1_DTEI),
+};
+
+static struct intc_mask_reg intca_mask_registers[] __initdata = {
+	{ /* IMR0A / IMCR0A */ 0xe6940080, 0xe69400c0, 8,
+	  { DMAC2_1_DEI3, DMAC2_1_DEI2, DMAC2_1_DEI1, DMAC2_1_DEI0,
+	    0, 0, AP_ARM_COMMTX, AP_ARM_COMMRX } },
+	{ /* IMR1A / IMCR1A */ 0xe6940084, 0xe69400c4, 8,
+	  { ATAPI, 0, DIRC, 0,
+	    DMAC1_1_DEI3, DMAC1_1_DEI2, DMAC1_1_DEI1, DMAC1_1_DEI0 } },
+	{ /* IMR2A / IMCR2A */ 0xe6940088, 0xe69400c8, 8,
+	  { 0, 0, 0, 0,
+	    BBIF1, BBIF2, MFIS, MFI } },
+	{ /* IMR3A / IMCR3A */ 0xe694008c, 0xe69400cc, 8,
+	  { DMAC3_1_DEI3, DMAC3_1_DEI2, DMAC3_1_DEI1, DMAC3_1_DEI0,
+	    DMAC3_2_DADERR, DMAC3_2_DEI5, DMAC3_2_DEI4, IRDA } },
+	{ /* IMR4A / IMCR4A */ 0xe6940090, 0xe69400d0, 8,
+	  { DDM, 0, 0, 0,
+	    0, 0, 0, 0 } },
+	{ /* IMR5A / IMCR5A */ 0xe6940094, 0xe69400d4, 8,
+	  { KEYSC, DMAC1_2_DADERR, DMAC1_2_DEI5, DMAC1_2_DEI4,
+	    SCIFA3, SCIFA2, SCIFA1, SCIFA0 } },
+	{ /* IMR6A / IMCR6A */ 0xe6940098, 0xe69400d8, 8,
+	  { SCIFB, SCIFA5, SCIFA4, MSIOF1,
+	    0, 0, MSIOF2, 0 } },
+	{ /* IMR7A / IMCR7A */ 0xe694009c, 0xe69400dc, 8,
+	  { SDHI0_3, SDHI0_2, SDHI0_1, SDHI0_0,
+	    FLCTL_FLTREQ1I, FLCTL_FLTREQ0I, FLCTL_FLTENDI, FLCTL_FLSTEI } },
+	{ /* IMR8A / IMCR8A */ 0xe69400a0, 0xe69400e0, 8,
+	  { SDHI1_3, SDHI1_2, SDHI1_1, SDHI1_0,
+	    0, USBHSDMAC, 0, AP_ARM_L2CINT } },
+	{ /* IMR9A / IMCR9A */ 0xe69400a4, 0xe69400e4, 8,
+	  { CMT1_3, CMT1_2, CMT1_1, CMT1_0,
+	    CMT2, USBF_IXL_INT, USBF_OUL_SOF, SGX540 } },
+	{ /* IMR10A / IMCR10A */ 0xe69400a8, 0xe69400e8, 8,
+	  { 0, DMAC2_2_DADERR, DMAC2_2_DEI5, DMAC2_2_DEI4,
+	    0, 0, 0, 0 } },
+	{ /* IMR11A / IMCR11A */ 0xe69400ac, 0xe69400ec, 8,
+	  { IIC1_DTEI, IIC1_WAITI, IIC1_TACKI, IIC1_ALI,
+	    ICBS0, 0, 0, 0 } },
+	{ /* IMR12A / IMCR12A */ 0xe69400b0, 0xe69400f0, 8,
+	  { 0, 0, TPU0, SCIFA6,
+	    SCIFA7, GbEther, 0, 0 } },
+	{ /* IMR13A / IMCR13A */ 0xe69400b4, 0xe69400f4, 8,
+	  { SDHI2_3, SDHI2_2, SDHI2_1, SDHI2_0,
+	    0, CMT3, 0, RWDT0 } },
+	{ /* IMR0A3 / IMCR0A3 */ 0xe6950080, 0xe69500c0, 8,
+	  { SHWYSTAT_RT, SHWYSTAT_HS, SHWYSTAT_COM, 0,
+	    0, 0, 0, 0 } },
+	  /* IMR1A3 / IMCR1A3 */
+	{ /* IMR2A3 / IMCR2A3 */ 0xe6950088, 0xe69500c8, 8,
+	  { 0, 0, USBH_INT, USBH_OHCI,
+	    USBH_EHCI, USBH_PME, USBH_BIND, 0 } },
+	  /* IMR3A3 / IMCR3A3 */
+	{ /* IMR4A3 / IMCR4A3 */ 0xe6950090, 0xe69500d0, 8,
+	  { 0, 0, 0, 0,
+	    RSPI_OVRF, RSPI_SPTEF, RSPI_SPRF, 0 } },
+	{ /* IMR5A3 / IMCR5A3 */ 0xe6950094, 0xe69500d4, 8,
+	  { SPU2_0, SPU2_1, FSI, FMSI,
+	    0, 0, 0, 0 } },
+	{ /* IMR6A3 / IMCR6A3 */ 0xe6950098, 0xe69500d8, 8,
+	  { 0, IPMMU, 0, 0,
+	    AP_ARM_CTIIRQ, AP_ARM_PMURQ, 0, 0 } },
+	{ /* IMR7A3 / IMCR7A3 */ 0xe695009c, 0xe69500dc, 8,
+	  { MFIS2, CPORTR2S, CMT14, CMT15,
+	    0, MMCIF_0, MMCIF_1, MMCIF_2 } },
+	  /* IMR8A3 / IMCR8A3 */
+	{ /* IMR9A3 / IMCR9A3 */ 0xe69500a4, 0xe69500e4, 8,
+	  { SIM_ERI, SIM_RXI, SIM_TXI, SIM_TEI,
+	    STPRO_0, STPRO_1, STPRO_2, STPRO_3 } },
+	{ /* IMR10A3 / IMCR10A3 */ 0xe69500a8, 0xe69500e8, 8,
+	  { STPRO_4, 0, 0, 0,
+	    0, 0, 0, 0 } },
+};
+
+static struct intc_prio_reg intca_prio_registers[] __initdata = {
+	{ 0xe6940000, 0, 16, 4, /* IPRAA */ { DMAC3_1, DMAC3_2, CMT2, ICBS0 } },
+	{ 0xe6940004, 0, 16, 4, /* IPRBA */ { IRDA, 0, BBIF1, BBIF2 } },
+	{ 0xe6940008, 0, 16, 4, /* IPRCA */ { ATAPI, 0, CMT1_1, AP_ARM1 } },
+	{ 0xe694000c, 0, 16, 4, /* IPRDA */ { 0, 0, CMT1_2, 0 } },
+	{ 0xe6940010, 0, 16, 4, /* IPREA */ { DMAC1_1, MFIS, MFI, USBF } },
+	{ 0xe6940014, 0, 16, 4, /* IPRFA */ { KEYSC, DMAC1_2,
+					      SGX540, CMT1_0 } },
+	{ 0xe6940018, 0, 16, 4, /* IPRGA */ { SCIFA0, SCIFA1,
+					      SCIFA2, SCIFA3 } },
+	{ 0xe694001c, 0, 16, 4, /* IPRGH */ { MSIOF2, USBHSDMAC,
+					      FLCTL, SDHI0 } },
+	{ 0xe6940020, 0, 16, 4, /* IPRIA */ { MSIOF1, SCIFA4, 0, IIC1 } },
+	{ 0xe6940024, 0, 16, 4, /* IPRJA */ { DMAC2_1, DMAC2_2,
+					      AP_ARM_L2CINT, 0 } },
+	{ 0xe6940028, 0, 16, 4, /* IPRKA */ { 0, CMT1_3, 0, SDHI1 } },
+	{ 0xe694002c, 0, 16, 4, /* IPRLA */ { TPU0, SCIFA6,
+					      SCIFA7, GbEther } },
+	{ 0xe6940030, 0, 16, 4, /* IPRMA */ { 0, CMT3, 0, RWDT0 } },
+	{ 0xe6940034, 0, 16, 4, /* IPRNA */ { SCIFB, SCIFA5, 0, DDM } },
+	{ 0xe6940038, 0, 16, 4, /* IPROA */ { 0, 0, DIRC, SDHI2 } },
+	{ 0xe6950000, 0, 16, 4, /* IPRAA3 */ { SHWYSTAT, 0, 0, 0 } },
+				/* IPRBA3 */
+				/* IPRCA3 */
+				/* IPRDA3 */
+	{ 0xe6950010, 0, 16, 4, /* IPREA3 */ { USBH1, 0, 0, 0 } },
+	{ 0xe6950014, 0, 16, 4, /* IPRFA3 */ { USBH2, 0, 0, 0 } },
+				/* IPRGA3 */
+				/* IPRHA3 */
+				/* IPRIA3 */
+	{ 0xe6950024, 0, 16, 4, /* IPRJA3 */ { RSPI, 0, 0, 0 } },
+	{ 0xe6950028, 0, 16, 4, /* IPRKA3 */ { SPU2, 0, FSI, FMSI } },
+				/* IPRLA3 */
+	{ 0xe6950030, 0, 16, 4, /* IPRMA3 */ { IPMMU, 0, 0, 0 } },
+	{ 0xe6950034, 0, 16, 4, /* IPRNA3 */ { AP_ARM2, 0, 0, 0 } },
+	{ 0xe6950038, 0, 16, 4, /* IPROA3 */ { MFIS2, CPORTR2S,
+					       CMT14, CMT15 } },
+	{ 0xe695003c, 0, 16, 4, /* IPRPA3 */ { 0, MMCIF_0, MMCIF_1, MMCIF_2 } },
+				/* IPRQA3 */
+				/* IPRRA3 */
+	{ 0xe6950048, 0, 16, 4, /* IPRSA3 */ { SIM_ERI, SIM_RXI,
+					       SIM_TXI, SIM_TEI } },
+	{ 0xe695004c, 0, 16, 4, /* IPRTA3 */ { STPRO_0, STPRO_1,
+					       STPRO_2, STPRO_3 } },
+	{ 0xe6950050, 0, 16, 4, /* IPRUA3 */ { STPRO_4, 0, 0, 0 } },
+};
+
+static DECLARE_INTC_DESC(intca_desc, "r8a7740-intca",
+			 intca_vectors, intca_groups,
+			 intca_mask_registers, intca_prio_registers,
+			 NULL);
+
+INTC_IRQ_PINS_32(intca_irq_pins, 0xe6900000,
+		 INTC_VECT, "r8a7740-intca-irq-pins");
+
+
+/*
+ *		INTCS
+ */
+enum {
+	UNUSED_INTCS = 0,
+
+	INTCS,
+
+	/* interrupt sources INTCS */
+
+	/* HUDI */
+	/* STPRO */
+	/* RTDMAC(1) */
+	VPU5HA2,
+	_2DG_TRAP, _2DG_GPM_INT, _2DG_CER_INT,
+	/* MFI */
+	/* BBIF2 */
+	VPU5F,
+	_2DG_BRK_INT,
+	/* SGX540 */
+	/* 2DDMAC */
+	/* IPMMU */
+	/* RTDMAC 2 */
+	/* KEYSC */
+	/* MSIOF */
+	IIC0_ALI, IIC0_TACKI, IIC0_WAITI, IIC0_DTEI,
+	TMU0_0, TMU0_1, TMU0_2,
+	CMT0,
+	/* CMT2 */
+	LMB,
+	CTI,
+	VOU,
+	/* RWDT0 */
+	ICB,
+	VIO6C,
+	CEU20, CEU21,
+	JPU,
+	LCDC0,
+	LCRC,
+	/* RTDMAC2(1) */
+	/* RTDMAC2(2) */
+	LCDC1,
+	/* SPU2 */
+	/* FSI */
+	/* FMSI */
+	TMU1_0, TMU1_1, TMU1_2,
+	CMT4,
+	DISP,
+	DSRV,
+	/* MFIS2 */
+	CPORTS2R,
+
+	/* interrupt groups INTCS */
+	_2DG1,
+	IIC0, TMU1,
+};
+
+static struct intc_vect intcs_vectors[] = {
+	/* HUDI */
+	/* STPRO */
+	/* RTDMAC(1) */
+	INTCS_VECT(VPU5HA2,		0x0880),
+	INTCS_VECT(_2DG_TRAP,		0x08A0),
+	INTCS_VECT(_2DG_GPM_INT,	0x08C0),
+	INTCS_VECT(_2DG_CER_INT,	0x08E0),
+	/* MFI */
+	/* BBIF2 */
+	INTCS_VECT(VPU5F,		0x0980),
+	INTCS_VECT(_2DG_BRK_INT,	0x09A0),
+	/* SGX540 */
+	/* 2DDMAC */
+	/* IPMMU */
+	/* RTDMAC(2) */
+	/* KEYSC */
+	/* MSIOF */
+	INTCS_VECT(IIC0_ALI,		0x0E00),
+	INTCS_VECT(IIC0_TACKI,		0x0E20),
+	INTCS_VECT(IIC0_WAITI,		0x0E40),
+	INTCS_VECT(IIC0_DTEI,		0x0E60),
+	INTCS_VECT(TMU0_0,		0x0E80),
+	INTCS_VECT(TMU0_1,		0x0EA0),
+	INTCS_VECT(TMU0_2,		0x0EC0),
+	INTCS_VECT(CMT0,		0x0F00),
+	/* CMT2 */
+	INTCS_VECT(LMB,			0x0F60),
+	INTCS_VECT(CTI,			0x0400),
+	INTCS_VECT(VOU,			0x0420),
+	/* RWDT0 */
+	INTCS_VECT(ICB,			0x0480),
+	INTCS_VECT(VIO6C,		0x04E0),
+	INTCS_VECT(CEU20,		0x0500),
+	INTCS_VECT(CEU21,		0x0520),
+	INTCS_VECT(JPU,			0x0560),
+	INTCS_VECT(LCDC0,		0x0580),
+	INTCS_VECT(LCRC,		0x05A0),
+	/* RTDMAC2(1) */
+	/* RTDMAC2(2) */
+	INTCS_VECT(LCDC1,		0x1780),
+	/* SPU2 */
+	/* FSI */
+	/* FMSI */
+	INTCS_VECT(TMU1_0,		0x1900),
+	INTCS_VECT(TMU1_1,		0x1920),
+	INTCS_VECT(TMU1_2,		0x1940),
+	INTCS_VECT(CMT4,		0x1980),
+	INTCS_VECT(DISP,		0x19A0),
+	INTCS_VECT(DSRV,		0x19C0),
+	/* MFIS2 */
+	INTCS_VECT(CPORTS2R,		0x1A20),
+
+	INTC_VECT(INTCS,		0xf80),
+};
 
-static int r8a7740_set_wake(struct irq_data *data, unsigned int on)
+static struct intc_group intcs_groups[] __initdata = {
+	INTC_GROUP(_2DG1, /*FIXME*/
+		   _2DG_CER_INT, _2DG_GPM_INT, _2DG_TRAP),
+	INTC_GROUP(IIC0,
+		   IIC0_DTEI, IIC0_WAITI, IIC0_TACKI, IIC0_ALI),
+	INTC_GROUP(TMU1,
+		   TMU1_0, TMU1_1, TMU1_2),
+};
+
+static struct intc_mask_reg intcs_mask_registers[] = {
+	  /* IMR0SA / IMCR0SA */ /* all 0 */
+	{ /* IMR1SA / IMCR1SA */ 0xffd20184, 0xffd201c4, 8,
+	  { _2DG_CER_INT, _2DG_GPM_INT, _2DG_TRAP, VPU5HA2,
+	    0, 0, 0, 0 /*STPRO*/ } },
+	{ /* IMR2SA / IMCR2SA */ 0xffd20188, 0xffd201c8, 8,
+	  { 0/*STPRO*/, 0, CEU21, VPU5F,
+	    0/*BBIF2*/, 0, 0, 0/*MFI*/ } },
+	{ /* IMR3SA / IMCR3SA */ 0xffd2018c, 0xffd201cc, 8,
+	  { 0, 0, 0, 0, /*2DDMAC*/
+	    VIO6C, 0, 0, ICB } },
+	{ /* IMR4SA / IMCR4SA */ 0xffd20190, 0xffd201d0, 8,
+	  { 0, 0, VOU, CTI,
+	    JPU, 0, LCRC, LCDC0 } },
+	  /* IMR5SA / IMCR5SA */ /*KEYSC/RTDMAC2/RTDMAC1*/
+	  /* IMR6SA / IMCR6SA */ /*MSIOF/SGX540*/
+	{ /* IMR7SA / IMCR7SA */ 0xffd2019c, 0xffd201dc, 8,
+	  { 0, TMU0_2, TMU0_1, TMU0_0,
+	    0, 0, 0, 0 } },
+	{ /* IMR8SA / IMCR8SA */ 0xffd201a0, 0xffd201e0, 8,
+	  { 0, 0, 0, 0,
+	    CEU20, 0, 0, 0 } },
+	{ /* IMR9SA / IMCR9SA */ 0xffd201a4, 0xffd201e4, 8,
+	  { 0, 0/*RWDT0*/, 0/*CMT2*/, CMT0,
+	    0, 0, 0, 0 } },
+	  /* IMR10SA / IMCR10SA */ /*IPMMU*/
+	{ /* IMR11SA / IMCR11SA */ 0xffd201ac, 0xffd201ec, 8,
+	  { IIC0_DTEI, IIC0_WAITI, IIC0_TACKI, IIC0_ALI,
+	    0, _2DG_BRK_INT, LMB, 0 } },
+	  /* IMR12SA / IMCR12SA */
+	  /* IMR13SA / IMCR13SA */
+	  /* IMR0SA3 / IMCR0SA3 */ /*RTDMAC2(1)/RTDMAC2(2)*/
+	  /* IMR1SA3 / IMCR1SA3 */
+	  /* IMR2SA3 / IMCR2SA3 */
+	  /* IMR3SA3 / IMCR3SA3 */
+	{ /* IMR4SA3 / IMCR4SA3 */ 0xffd50190, 0xffd501d0, 8,
+	  { 0, 0, 0, 0,
+	    LCDC1, 0, 0, 0 } },
+	  /* IMR5SA3 / IMCR5SA3 */ /* SPU2/FSI/FMSI */
+	{ /* IMR6SA3 / IMCR6SA3 */ 0xffd50198, 0xffd501d8, 8,
+	  { TMU1_0, TMU1_1, TMU1_2, 0,
+	    CMT4, DISP, DSRV, 0 } },
+	{ /* IMR7SA3 / IMCR7SA3 */ 0xffd5019c, 0xffd501dc, 8,
+	  { 0/*MFIS2*/, CPORTS2R, 0, 0,
+	    0, 0, 0, 0 } },
+	{ /* INTAMASK */ 0xffd20104, 0, 16,
+	  { 0, 0, 0, 0, 0, 0, 0, 0,
+	    0, 0, 0, 0, 0, 0, 0, INTCS } },
+};
+
+/* Priority is needed for INTCA to receive the INTCS interrupt */
+static struct intc_prio_reg intcs_prio_registers[] = {
+	{ 0xffd20000, 0, 16, 4, /* IPRAS */ { CTI, VOU, 0/*2DDMAC*/, ICB } },
+	{ 0xffd20004, 0, 16, 4, /* IPRBS */ { JPU, LCDC0, 0, LCRC } },
+				/* IPRCS */ /*BBIF2*/
+				/* IPRDS */
+	{ 0xffd20010, 0, 16, 4, /* IPRES */ { 0/*RTDMAC(1)*/, VPU5HA2,
+					      0/*MFI*/, VPU5F } },
+	{ 0xffd20014, 0, 16, 4, /* IPRFS */ { 0/*KEYSC*/, 0/*RTDMAC(2)*/,
+					      0/*CMT2*/, CMT0 } },
+	{ 0xffd20018, 0, 16, 4, /* IPRGS */ { TMU0_0, TMU0_1,
+					      TMU0_2, _2DG1 } },
+	{ 0xffd2001c, 0, 16, 4, /* IPRHS */ { 0, 0/*STPRO*/, 0/*STPRO*/,
+					      _2DG_BRK_INT/*FIXME*/ } },
+	{ 0xffd20020, 0, 16, 4, /* IPRIS */ { 0, 0/*MSIOF*/, 0, IIC0 } },
+	{ 0xffd20024, 0, 16, 4, /* IPRJS */ { CEU20, 0/*SGX540*/, 0, 0 } },
+	{ 0xffd20028, 0, 16, 4, /* IPRKS */ { VIO6C, 0, LMB, 0 } },
+	{ 0xffd2002c, 0, 16, 4, /* IPRLS */ { 0/*IPMMU*/, 0, CEU21, 0 } },
+				/* IPRMS */ /*RWDT0*/
+				/* IPRAS3 */ /*RTDMAC2(1)*/
+				/* IPRBS3 */ /*RTDMAC2(2)*/
+				/* IPRCS3 */
+				/* IPRDS3 */
+				/* IPRES3 */
+				/* IPRFS3 */
+				/* IPRGS3 */
+				/* IPRHS3 */
+				/* IPRIS3 */
+	{ 0xffd50024, 0, 16, 4, /* IPRJS3 */ { LCDC1, 0, 0, 0 } },
+				/* IPRKS3 */ /*SPU2/FSI/FMSi*/
+				/* IPRLS3 */
+	{ 0xffd50030, 0, 16, 4, /* IPRMS3 */ { TMU1, 0, 0, 0 } },
+	{ 0xffd50034, 0, 16, 4, /* IPRNS3 */ { CMT4, DISP, DSRV, 0 } },
+	{ 0xffd50038, 0, 16, 4, /* IPROS3 */ { 0/*MFIS2*/, CPORTS2R, 0, 0 } },
+				/* IPRPS3 */
+};
+
+static struct resource intcs_resources[] __initdata = {
+	[0] = {
+		.start	= 0xffd20000,
+		.end	= 0xffd201ff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= 0xffd50000,
+		.end	= 0xffd501ff,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
+static struct intc_desc intcs_desc __initdata = {
+	.name = "r8a7740-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 void intcs_demux(unsigned int irq, struct irq_desc *desc)
 {
-	return 0; /* always allow wakeup */
+	void __iomem *reg = (void *)irq_get_handler_data(irq);
+	unsigned int evtcodeas = ioread32(reg);
+
+	generic_handle_irq(intcs_evt2irq(evtcodeas));
 }
 
 void __init r8a7740_init_irq(void)
 {
-	void __iomem *gic_dist_base = __io(0xf0001000);
-	void __iomem *gic_cpu_base = __io(0xf0000000);
+	void __iomem *intevtsa = ioremap_nocache(0xffd20100, PAGE_SIZE);
 
-	/*
-	 * Change INT_SEL INTCA->GIC
-	 * (on GPIO)
-	 */
-	__raw_writel(__raw_readl(INTA_CTRL) & ~(1 << 1), INTA_CTRL);
+	register_intc_controller(&intca_desc);
+	register_intc_controller(&intca_irq_pins_desc);
+	register_intc_controller(&intcs_desc);
 
-	gic_init(0, 29, gic_dist_base, gic_cpu_base);
-	gic_arch_extn.irq_set_wake = r8a7740_set_wake;
+	/* demux using INTEVTSA */
+	irq_set_handler_data(evt2irq(0xf80), (void *)intevtsa);
+	irq_set_chained_handler(evt2irq(0xf80), intcs_demux);
 }
diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c
index e16860f04934..986dca6b3fad 100644
--- a/arch/arm/mach-shmobile/setup-r8a7740.c
+++ b/arch/arm/mach-shmobile/setup-r8a7740.c
@@ -35,7 +35,7 @@ static struct plat_sci_port scif0_platform_data = {
 	.scscr		= SCSCR_RE | SCSCR_TE,
 	.scbrr_algo_id	= SCBRR_ALGO_4,
 	.type		= PORT_SCIFA,
-	.irqs		= SCIx_IRQ_MUXED(gic_spi(100)),
+	.irqs		= SCIx_IRQ_MUXED(evt2irq(0x0c00)),
 };
 
 static struct platform_device scif0_device = {
@@ -53,7 +53,7 @@ static struct plat_sci_port scif1_platform_data = {
 	.scscr		= SCSCR_RE | SCSCR_TE,
 	.scbrr_algo_id	= SCBRR_ALGO_4,
 	.type		= PORT_SCIFA,
-	.irqs		= SCIx_IRQ_MUXED(gic_spi(101)),
+	.irqs		= SCIx_IRQ_MUXED(evt2irq(0x0c20)),
 };
 
 static struct platform_device scif1_device = {
@@ -71,7 +71,7 @@ static struct plat_sci_port scif2_platform_data = {
 	.scscr		= SCSCR_RE | SCSCR_TE,
 	.scbrr_algo_id	= SCBRR_ALGO_4,
 	.type		= PORT_SCIFA,
-	.irqs		= SCIx_IRQ_MUXED(gic_spi(102)),
+	.irqs		= SCIx_IRQ_MUXED(evt2irq(0x0c40)),
 };
 
 static struct platform_device scif2_device = {
@@ -89,7 +89,7 @@ static struct plat_sci_port scif3_platform_data = {
 	.scscr		= SCSCR_RE | SCSCR_TE,
 	.scbrr_algo_id	= SCBRR_ALGO_4,
 	.type		= PORT_SCIFA,
-	.irqs		= SCIx_IRQ_MUXED(gic_spi(103)),
+	.irqs		= SCIx_IRQ_MUXED(evt2irq(0x0c60)),
 };
 
 static struct platform_device scif3_device = {
@@ -107,7 +107,7 @@ static struct plat_sci_port scif4_platform_data = {
 	.scscr		= SCSCR_RE | SCSCR_TE,
 	.scbrr_algo_id	= SCBRR_ALGO_4,
 	.type		= PORT_SCIFA,
-	.irqs		= SCIx_IRQ_MUXED(gic_spi(104)),
+	.irqs		= SCIx_IRQ_MUXED(evt2irq(0x0d20)),
 };
 
 static struct platform_device scif4_device = {
@@ -125,7 +125,7 @@ static struct plat_sci_port scif5_platform_data = {
 	.scscr		= SCSCR_RE | SCSCR_TE,
 	.scbrr_algo_id	= SCBRR_ALGO_4,
 	.type		= PORT_SCIFA,
-	.irqs		= SCIx_IRQ_MUXED(gic_spi(105)),
+	.irqs		= SCIx_IRQ_MUXED(evt2irq(0x0d40)),
 };
 
 static struct platform_device scif5_device = {
@@ -143,7 +143,7 @@ static struct plat_sci_port scif6_platform_data = {
 	.scscr		= SCSCR_RE | SCSCR_TE,
 	.scbrr_algo_id	= SCBRR_ALGO_4,
 	.type		= PORT_SCIFA,
-	.irqs		= SCIx_IRQ_MUXED(gic_spi(106)),
+	.irqs		= SCIx_IRQ_MUXED(evt2irq(0x04c0)),
 };
 
 static struct platform_device scif6_device = {
@@ -161,7 +161,7 @@ static struct plat_sci_port scif7_platform_data = {
 	.scscr		= SCSCR_RE | SCSCR_TE,
 	.scbrr_algo_id	= SCBRR_ALGO_4,
 	.type		= PORT_SCIFA,
-	.irqs		= SCIx_IRQ_MUXED(gic_spi(107)),
+	.irqs		= SCIx_IRQ_MUXED(evt2irq(0x04e0)),
 };
 
 static struct platform_device scif7_device = {
@@ -179,7 +179,7 @@ static struct plat_sci_port scifb_platform_data = {
 	.scscr		= SCSCR_RE | SCSCR_TE,
 	.scbrr_algo_id	= SCBRR_ALGO_4,
 	.type		= PORT_SCIFB,
-	.irqs		= SCIx_IRQ_MUXED(gic_spi(108)),
+	.irqs		= SCIx_IRQ_MUXED(evt2irq(0x0d60)),
 };
 
 static struct platform_device scifb_device = {
@@ -207,7 +207,7 @@ static struct resource cmt10_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= gic_spi(58),
+		.start	= evt2irq(0x0b00),
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -244,8 +244,8 @@ static struct resource i2c0_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= gic_spi(201),
-		.end	= gic_spi(204),
+		.start	= intcs_evt2irq(0xe00),
+		.end	= intcs_evt2irq(0xe60),
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -258,8 +258,8 @@ static struct resource i2c1_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= gic_spi(70),
-		.end	= gic_spi(73),
+		.start  = evt2irq(0x780), /* IIC1_ALI1 */
+		.end    = evt2irq(0x7e0), /* IIC1_DTEI1 */
 		.flags	= IORESOURCE_IRQ,
 	},
 };