ARM: mach-shmobile: intc-sh7377: Add INTCS support

Add support for the sh7377 INTCS interrupt controller.

INTCS is the interrupt controller for the sh7377 SuperH
processor core. It is tied into the INTCA interrupt
controller which interfaces to the ARM processor.

INTCS support is implemented using a new INTC table
together with a chained interrupt handler that ties
into the already supported INTCA controller.
Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/arm/mach-shmobile/intc-sh7377.c

@@ -346,7 +346,301 @@ static struct intc_desc intca_desc __initdata = {
 			   intca_sense_registers, intca_ack_registers),
 };
 
+/* this macro ignore entry which is also in INTCA */
+#define __IGNORE(a...)
+#define __IGNORE0(a...) 0
+
+enum {
+	UNUSED_INTCS = 0,
+
+	INTCS,
+
+	/* interrupt sources INTCS */
+	VEU_VEU0, VEU_VEU1, VEU_VEU2, VEU_VEU3,
+	RTDMAC1_1_DEI0, RTDMAC1_1_DEI1, RTDMAC1_1_DEI2, RTDMAC1_1_DEI3,
+	CEU,
+	BEU_BEU0, BEU_BEU1, BEU_BEU2,
+	__IGNORE(MFI)
+	__IGNORE(BBIF2)
+	VPU,
+	TSIF1,
+	__IGNORE(SGX540)
+	_2DDMAC,
+	IIC2_ALI2, IIC2_TACKI2, IIC2_WAITI2, IIC2_DTEI2,
+	IPMMU_IPMMUR, IPMMU_IPMMUR2,
+	RTDMAC1_2_DEI4, RTDMAC1_2_DEI5, RTDMAC1_2_DADERR,
+	__IGNORE(KEYSC)
+	__IGNORE(TTI20)
+	__IGNORE(MSIOF)
+	IIC0_ALI0, IIC0_TACKI0, IIC0_WAITI0, IIC0_DTEI0,
+	TMU_TUNI0, TMU_TUNI1, TMU_TUNI2,
+	CMT0,
+	TSIF0,
+	__IGNORE(CMT2)
+	LMB,
+	__IGNORE(MSUG)
+	__IGNORE(MSU_MSU, MSU_MSU2)
+	__IGNORE(CTI)
+	MVI3,
+	__IGNORE(RWDT0)
+	__IGNORE(RWDT1)
+	ICB,
+	PEP,
+	ASA,
+	__IGNORE(_2DG)
+	HQE,
+	JPU,
+	LCDC0,
+	__IGNORE(LCRC)
+	RTDMAC2_1_DEI0, RTDMAC2_1_DEI1, RTDMAC2_1_DEI2, RTDMAC2_1_DEI3,
+	RTDMAC2_2_DEI4, RTDMAC2_2_DEI5, RTDMAC2_2_DADERR,
+	FRC,
+	LCDC1,
+	CSIRX,
+	DSITX_DSITX0, DSITX_DSITX1,
+	__IGNORE(SPU2_SPU0, SPU2_SPU1)
+	__IGNORE(FSI)
+	__IGNORE(FMSI)
+	__IGNORE(SCUV)
+	TMU1_TUNI10, TMU1_TUNI11, TMU1_TUNI12,
+	TSIF2,
+	CMT4,
+	__IGNORE(MFIS2)
+	CPORTS2R,
+
+	/* interrupt groups INTCS */
+	RTDMAC1_1, RTDMAC1_2, VEU, BEU, IIC0, __IGNORE(MSU) IPMMU,
+	IIC2, RTDMAC2_1, RTDMAC2_2, DSITX, __IGNORE(SPU2) TMU1,
+};
+
+#define INTCS_INTVECT 0x0F80
+static struct intc_vect intcs_vectors[] __initdata = {
+	INTCS_VECT(VEU_VEU0, 0x0700), INTCS_VECT(VEU_VEU1, 0x0720),
+	INTCS_VECT(VEU_VEU2, 0x0740), INTCS_VECT(VEU_VEU3, 0x0760),
+	INTCS_VECT(RTDMAC1_1_DEI0, 0x0800), INTCS_VECT(RTDMAC1_1_DEI1, 0x0820),
+	INTCS_VECT(RTDMAC1_1_DEI2, 0x0840), INTCS_VECT(RTDMAC1_1_DEI3, 0x0860),
+	INTCS_VECT(CEU, 0x0880),
+	INTCS_VECT(BEU_BEU0, 0x08A0),
+	INTCS_VECT(BEU_BEU1, 0x08C0),
+	INTCS_VECT(BEU_BEU2, 0x08E0),
+	__IGNORE(INTCS_VECT(MFI, 0x0900))
+	__IGNORE(INTCS_VECT(BBIF2, 0x0960))
+	INTCS_VECT(VPU, 0x0980),
+	INTCS_VECT(TSIF1, 0x09A0),
+	__IGNORE(INTCS_VECT(SGX540, 0x09E0))
+	INTCS_VECT(_2DDMAC, 0x0A00),
+	INTCS_VECT(IIC2_ALI2, 0x0A80), INTCS_VECT(IIC2_TACKI2, 0x0AA0),
+	INTCS_VECT(IIC2_WAITI2, 0x0AC0), INTCS_VECT(IIC2_DTEI2, 0x0AE0),
+	INTCS_VECT(IPMMU_IPMMUR, 0x0B00), INTCS_VECT(IPMMU_IPMMUR2, 0x0B20),
+	INTCS_VECT(RTDMAC1_2_DEI4, 0x0B80),
+	INTCS_VECT(RTDMAC1_2_DEI5, 0x0BA0),
+	INTCS_VECT(RTDMAC1_2_DADERR, 0x0BC0),
+	__IGNORE(INTCS_VECT(KEYSC 0x0BE0))
+	__IGNORE(INTCS_VECT(TTI20, 0x0C80))
+	__IGNORE(INTCS_VECT(MSIOF, 0x0D20))
+	INTCS_VECT(IIC0_ALI0, 0x0E00), INTCS_VECT(IIC0_TACKI0, 0x0E20),
+	INTCS_VECT(IIC0_WAITI0, 0x0E40), INTCS_VECT(IIC0_DTEI0, 0x0E60),
+	INTCS_VECT(TMU_TUNI0, 0x0E80),
+	INTCS_VECT(TMU_TUNI1, 0x0EA0),
+	INTCS_VECT(TMU_TUNI2, 0x0EC0),
+	INTCS_VECT(CMT0, 0x0F00),
+	INTCS_VECT(TSIF0, 0x0F20),
+	__IGNORE(INTCS_VECT(CMT2, 0x0F40))
+	INTCS_VECT(LMB, 0x0F60),
+	__IGNORE(INTCS_VECT(MSUG, 0x0F80))
+	__IGNORE(INTCS_VECT(MSU_MSU, 0x0FA0))
+	__IGNORE(INTCS_VECT(MSU_MSU2, 0x0FC0))
+	__IGNORE(INTCS_VECT(CTI, 0x0400))
+	INTCS_VECT(MVI3, 0x0420),
+	__IGNORE(INTCS_VECT(RWDT0, 0x0440))
+	__IGNORE(INTCS_VECT(RWDT1, 0x0460))
+	INTCS_VECT(ICB, 0x0480),
+	INTCS_VECT(PEP, 0x04A0),
+	INTCS_VECT(ASA, 0x04C0),
+	__IGNORE(INTCS_VECT(_2DG, 0x04E0))
+	INTCS_VECT(HQE, 0x0540),
+	INTCS_VECT(JPU, 0x0560),
+	INTCS_VECT(LCDC0, 0x0580),
+	__IGNORE(INTCS_VECT(LCRC, 0x05A0))
+	INTCS_VECT(RTDMAC2_1_DEI0, 0x1300), INTCS_VECT(RTDMAC2_1_DEI1, 0x1320),
+	INTCS_VECT(RTDMAC2_1_DEI2, 0x1340), INTCS_VECT(RTDMAC2_1_DEI3, 0x1360),
+	INTCS_VECT(RTDMAC2_2_DEI4, 0x1380), INTCS_VECT(RTDMAC2_2_DEI5, 0x13A0),
+	INTCS_VECT(RTDMAC2_2_DADERR, 0x13C0),
+	INTCS_VECT(FRC, 0x1700),
+	INTCS_VECT(LCDC1, 0x1780),
+	INTCS_VECT(CSIRX, 0x17A0),
+	INTCS_VECT(DSITX_DSITX0, 0x17C0), INTCS_VECT(DSITX_DSITX1, 0x17E0),
+	__IGNORE(INTCS_VECT(SPU2_SPU0, 0x1800))
+	__IGNORE(INTCS_VECT(SPU2_SPU1, 0x1820))
+	__IGNORE(INTCS_VECT(FSI, 0x1840))
+	__IGNORE(INTCS_VECT(FMSI, 0x1860))
+	__IGNORE(INTCS_VECT(SCUV, 0x1880))
+	INTCS_VECT(TMU1_TUNI10, 0x1900), INTCS_VECT(TMU1_TUNI11, 0x1920),
+	INTCS_VECT(TMU1_TUNI12, 0x1940),
+	INTCS_VECT(TSIF2, 0x1960),
+	INTCS_VECT(CMT4, 0x1980),
+	__IGNORE(INTCS_VECT(MFIS2, 0x1A00))
+	INTCS_VECT(CPORTS2R, 0x1A20),
+
+	INTC_VECT(INTCS, INTCS_INTVECT),
+};
+
+static struct intc_group intcs_groups[] __initdata = {
+	INTC_GROUP(RTDMAC1_1,
+		   RTDMAC1_1_DEI0, RTDMAC1_1_DEI1,
+		   RTDMAC1_1_DEI2, RTDMAC1_1_DEI3),
+	INTC_GROUP(RTDMAC1_2,
+		   RTDMAC1_2_DEI4, RTDMAC1_2_DEI5, RTDMAC1_2_DADERR),
+	INTC_GROUP(VEU, VEU_VEU0, VEU_VEU1, VEU_VEU2, VEU_VEU3),
+	INTC_GROUP(BEU, BEU_BEU0, BEU_BEU1, BEU_BEU2),
+	INTC_GROUP(IIC0, IIC0_ALI0, IIC0_TACKI0, IIC0_WAITI0, IIC0_DTEI0),
+	__IGNORE(INTC_GROUP(MSU, MSU_MSU, MSU_MSU2))
+	INTC_GROUP(IPMMU, IPMMU_IPMMUR, IPMMU_IPMMUR2),
+	INTC_GROUP(IIC2, IIC2_ALI2, IIC2_TACKI2, IIC2_WAITI2, IIC2_DTEI2),
+	INTC_GROUP(RTDMAC2_1,
+		   RTDMAC2_1_DEI0, RTDMAC2_1_DEI1,
+		   RTDMAC2_1_DEI2, RTDMAC2_1_DEI3),
+	INTC_GROUP(RTDMAC2_2, RTDMAC2_2_DEI4, RTDMAC2_2_DEI5, RTDMAC2_2_DADERR),
+	INTC_GROUP(DSITX, DSITX_DSITX0, DSITX_DSITX1),
+	__IGNORE(INTC_GROUP(SPU2, SPU2_SPU0, SPU2_SPU1))
+	INTC_GROUP(TMU1, TMU1_TUNI10, TMU1_TUNI11, TMU1_TUNI12),
+};
+
+static struct intc_mask_reg intcs_mask_registers[] __initdata = {
+	{ 0xE6940184, 0xE69401C4, 8, /* IMR1AS / IMCR1AS  */
+	  { BEU_BEU2, BEU_BEU1, BEU_BEU0, CEU,
+	    VEU_VEU3, VEU_VEU2, VEU_VEU1, VEU_VEU0 } },
+	{ 0xE6940188, 0xE69401C8, 8, /* IMR2AS / IMCR2AS */
+	  { 0, 0, 0, VPU,
+	    __IGNORE0(BBIF2), 0, 0, __IGNORE0(MFI) } },
+	{ 0xE694018C, 0xE69401CC, 8, /* IMR3AS / IMCR3AS */
+	  { 0, 0, 0, _2DDMAC,
+	    __IGNORE0(_2DG), ASA, PEP, ICB } },
+	{ 0xE6940190, 0xE69401D0, 8, /* IMR4AS / IMCR4AS */
+	  { 0, 0, MVI3, __IGNORE0(CTI),
+	    JPU, HQE, __IGNORE0(LCRC), LCDC0 } },
+	{ 0xE6940194, 0xE69401D4, 8, /* IMR5AS / IMCR5AS */
+	  { __IGNORE0(KEYSC), RTDMAC1_2_DADERR, RTDMAC1_2_DEI5, RTDMAC1_2_DEI4,
+	    RTDMAC1_1_DEI3, RTDMAC1_1_DEI2, RTDMAC1_1_DEI1, RTDMAC1_1_DEI0 } },
+	__IGNORE({ 0xE6940198, 0xE69401D8, 8, /* IMR6AS / IMCR6AS */
+	  { 0, 0, MSIOF, 0,
+	    SGX540, 0, TTI20, 0 } })
+	{ 0xE694019C, 0xE69401DC, 8, /* IMR7AS / IMCR7AS */
+	  { 0, TMU_TUNI2, TMU_TUNI1, TMU_TUNI0,
+	    0, 0, 0, 0 } },
+	__IGNORE({ 0xE69401A0, 0xE69401E0, 8, /* IMR8AS / IMCR8AS */
+	  { 0, 0, 0, 0,
+	    0, MSU_MSU, MSU_MSU2, MSUG } })
+	{ 0xE69401A4, 0xE69401E4, 8, /* IMR9AS / IMCR9AS */
+	  { __IGNORE0(RWDT1), __IGNORE0(RWDT0), __IGNORE0(CMT2), CMT0,
+	    IIC2_DTEI2, IIC2_WAITI2, IIC2_TACKI2, IIC2_ALI2 } },
+	{ 0xE69401A8, 0xE69401E8, 8, /* IMR10AS / IMCR10AS */
+	  { 0, 0, IPMMU_IPMMUR, IPMMU_IPMMUR2,
+	    0, 0, 0, 0 } },
+	{ 0xE69401AC, 0xE69401EC, 8, /* IMR11AS / IMCR11AS */
+	  { IIC0_DTEI0, IIC0_WAITI0, IIC0_TACKI0, IIC0_ALI0,
+	    0, TSIF1, LMB, TSIF0 } },
+	{ 0xE6950180, 0xE69501C0, 8, /* IMR0AS3 / IMCR0AS3 */
+	  { RTDMAC2_1_DEI0, RTDMAC2_1_DEI1, RTDMAC2_1_DEI2, RTDMAC2_1_DEI3,
+	    RTDMAC2_2_DEI4, RTDMAC2_2_DEI5, RTDMAC2_2_DADERR, 0 } },
+	{ 0xE6950190, 0xE69501D0, 8, /* IMR4AS3 / IMCR4AS3 */
+	  { FRC, 0, 0, 0,
+	    LCDC1, CSIRX, DSITX_DSITX0, DSITX_DSITX1 } },
+	__IGNORE({ 0xE6950194, 0xE69501D4, 8, /* IMR5AS3 / IMCR5AS3 */
+	  {SPU2_SPU0, SPU2_SPU1, FSI, FMSI,
+	   SCUV, 0, 0, 0 } })
+	{ 0xE6950198, 0xE69501D8, 8, /* IMR6AS3 / IMCR6AS3 */
+	  { TMU1_TUNI10, TMU1_TUNI11, TMU1_TUNI12, TSIF2,
+	    CMT4, 0, 0, 0 } },
+	{ 0xE695019C, 0xE69501DC, 8, /* IMR7AS3 / IMCR7AS3 */
+	  { __IGNORE0(MFIS2), CPORTS2R, 0, 0,
+	    0, 0, 0, 0 } },
+	{ 0xFFD20104, 0, 16, /* INTAMASK */
+	  { 0, 0, 0, 0, 0, 0, 0, 0,
+	    0, 0, 0, 0, 0, 0, 0, INTCS } }
+};
+
+static struct intc_prio_reg intcs_prio_registers[] __initdata = {
+	/* IPRAS */
+	{ 0xFFD20000, 0, 16, 4, { __IGNORE0(CTI), MVI3, _2DDMAC, ICB } },
+	/* IPRBS */
+	{ 0xFFD20004, 0, 16, 4, { JPU, LCDC0, 0, __IGNORE0(LCRC) } },
+	/* IPRCS */
+	__IGNORE({ 0xFFD20008, 0, 16, 4, { BBIF2, 0, 0, 0 } })
+	/* IPRES */
+	{ 0xFFD20010, 0, 16, 4, { RTDMAC1_1, CEU, __IGNORE0(MFI), VPU } },
+	/* IPRFS */
+	{ 0xFFD20014, 0, 16, 4,
+	  { __IGNORE0(KEYSC), RTDMAC1_2, __IGNORE0(CMT2), CMT0 } },
+	/* IPRGS */
+	{ 0xFFD20018, 0, 16, 4, { TMU_TUNI0, TMU_TUNI1, TMU_TUNI2, TSIF1 } },
+	/* IPRHS */
+	{ 0xFFD2001C, 0, 16, 4, { __IGNORE0(TTI20), 0, VEU, BEU } },
+	/* IPRIS */
+	{ 0xFFD20020, 0, 16, 4, { 0, __IGNORE0(MSIOF), TSIF0, IIC0 } },
+	/* IPRJS */
+	__IGNORE({ 0xFFD20024, 0, 16, 4, { 0, SGX540, MSUG, MSU } })
+	/* IPRKS */
+	{ 0xFFD20028, 0, 16, 4, { __IGNORE0(_2DG), ASA, LMB, PEP } },
+	/* IPRLS */
+	{ 0xFFD2002C, 0, 16, 4, { IPMMU, 0, 0, HQE } },
+	/* IPRMS */
+	{ 0xFFD20030, 0, 16, 4,
+	  { IIC2, 0, __IGNORE0(RWDT1), __IGNORE0(RWDT0) } },
+	/* IPRAS3 */
+	{ 0xFFD50000, 0, 16, 4, { RTDMAC2_1, 0, 0, 0 } },
+	/* IPRBS3 */
+	{ 0xFFD50004, 0, 16, 4, { RTDMAC2_2, 0, 0, 0 } },
+	/* IPRIS3 */
+	{ 0xFFD50020, 0, 16, 4, { FRC, 0, 0, 0 } },
+	/* IPRJS3 */
+	{ 0xFFD50024, 0, 16, 4, { LCDC1, CSIRX, DSITX, 0 } },
+	/* IPRKS3 */
+	__IGNORE({ 0xFFD50028, 0, 16, 4, { SPU2, 0, FSI, FMSI } })
+	/* IPRLS3 */
+	__IGNORE({ 0xFFD5002C, 0, 16, 4, { SCUV, 0, 0, 0 } })
+	/* IPRMS3 */
+	{ 0xFFD50030, 0, 16, 4, { TMU1, 0, 0, TSIF2 } },
+	/* IPRNS3 */
+	{ 0xFFD50034, 0, 16, 4, { CMT4, 0, 0, 0 } },
+	/* IPROS3 */
+	{ 0xFFD50038, 0, 16, 4, { __IGNORE0(MFIS2), CPORTS2R, 0, 0 } },
+};
+
+static struct resource intcs_resources[] __initdata = {
+	[0] = {
+		.start	= 0xffd20000,
+		.end	= 0xffd500ff,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
+static struct intc_desc intcs_desc __initdata = {
+	.name = "sh7377-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)
+{
+	void __iomem *reg = (void *)get_irq_data(irq);
+	unsigned int evtcodeas = ioread32(reg);
+
+	generic_handle_irq(intcs_evt2irq(evtcodeas));
+}
+
+#define INTEVTSA 0xFFD20100
 void __init sh7377_init_irq(void)
 {
+	void __iomem *intevtsa = ioremap_nocache(INTEVTSA, PAGE_SIZE);
+
 	register_intc_controller(&intca_desc);
+	register_intc_controller(&intcs_desc);
+
+	/* demux using INTEVTSA */
+	set_irq_data(evt2irq(INTCS_INTVECT), (void *)intevtsa);
+	set_irq_chained_handler(evt2irq(INTCS_INTVECT), intcs_demux);
 }