sh: intc - add support for SH7760

This patch converts the cpu specific interrupt setup code for sh7760
from ipr + intc2 to intc. New vectors are also added to match the
information provided by the datasheet.

Vectors for IRQ4-IRQ7 are enabled by default. Use plat_irq_setup_pins()
if pins IRL0-3 should be used in IRLM mode.

The patch also adds the SIM block to the serial port platform data.
Version two of this patch fixes MMCIF problems reported by Manuel Lauss.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 146 insertions, 107 deletions

diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
index 47fa2705625..6a6686d71fb 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7760.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
@@ -12,6 +12,136 @@
 #include <linux/serial.h>
 #include <asm/sci.h>
 
+enum {
+	UNUSED = 0,
+
+	/* interrupt sources */
+	IRL0, IRL1, IRL2, IRL3,
+	HUDI, GPIOI,
+	DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2, DMAC_DMTE3,
+	DMAC_DMTE4, DMAC_DMTE5, DMAC_DMTE6, DMAC_DMTE7,
+	DMAC_DMAE,
+	IRQ4, IRQ5, IRQ6, IRQ7,
+	HCAN20, HCAN21,
+	SSI0, SSI1,
+	HAC0, HAC1,
+	I2C0, I2C1,
+	USB, LCDC,
+	DMABRG0, DMABRG1, DMABRG2,
+	SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI,
+	SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI,
+	SCIF2_ERI, SCIF2_RXI, SCIF2_BRI, SCIF2_TXI,
+	SIM_ERI, SIM_RXI, SIM_TXI, SIM_TEI,
+	HSPI,
+	MMCIF0, MMCIF1, MMCIF2, MMCIF3,
+	MFI, ADC, CMT,
+	TMU0, TMU1, TMU2_TUNI, TMU2_TICPI,
+	WDT,
+	REF_RCMI, REF_ROVI,
+
+	/* interrupt groups */
+	DMAC, DMABRG, SCIF0, SCIF1, SCIF2, SIM, MMCIF, TMU2, REF,
+};
+
+static struct intc_vect vectors[] = {
+	INTC_VECT(HUDI, 0x600), INTC_VECT(GPIOI, 0x620),
+	INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660),
+	INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0),
+	INTC_VECT(DMAC_DMTE4, 0x780), INTC_VECT(DMAC_DMTE5, 0x7a0),
+	INTC_VECT(DMAC_DMTE6, 0x7c0), INTC_VECT(DMAC_DMTE7, 0x7e0),
+	INTC_VECT(DMAC_DMAE, 0x6c0),
+	INTC_VECT(IRQ4, 0x800), INTC_VECT(IRQ5, 0x820),
+	INTC_VECT(IRQ6, 0x840), INTC_VECT(IRQ6, 0x860),
+	INTC_VECT(HCAN20, 0x900), INTC_VECT(HCAN21, 0x920),
+	INTC_VECT(SSI0, 0x940), INTC_VECT(SSI1, 0x960),
+	INTC_VECT(HAC0, 0x980), INTC_VECT(HAC1, 0x9a0),
+	INTC_VECT(I2C0, 0x9c0), INTC_VECT(I2C1, 0x9e0),
+	INTC_VECT(USB, 0xa00), INTC_VECT(LCDC, 0xa20),
+	INTC_VECT(DMABRG0, 0xa80), INTC_VECT(DMABRG1, 0xaa0),
+	INTC_VECT(DMABRG2, 0xac0),
+	INTC_VECT(SCIF0_ERI, 0x880), INTC_VECT(SCIF0_RXI, 0x8a0),
+	INTC_VECT(SCIF0_BRI, 0x8c0), INTC_VECT(SCIF0_TXI, 0x8e0),
+	INTC_VECT(SCIF1_ERI, 0xb00), INTC_VECT(SCIF1_RXI, 0xb20),
+	INTC_VECT(SCIF1_BRI, 0xb40), INTC_VECT(SCIF1_TXI, 0xb60),
+	INTC_VECT(SCIF2_ERI, 0xb80), INTC_VECT(SCIF2_RXI, 0xba0),
+	INTC_VECT(SCIF2_BRI, 0xbc0), INTC_VECT(SCIF2_TXI, 0xbe0),
+	INTC_VECT(SIM_ERI, 0xc00), INTC_VECT(SIM_RXI, 0xc20),
+	INTC_VECT(SIM_TXI, 0xc40), INTC_VECT(SIM_TEI, 0xc60),
+	INTC_VECT(HSPI, 0xc80),
+	INTC_VECT(MMCIF0, 0xd00), INTC_VECT(MMCIF1, 0xd20),
+	INTC_VECT(MMCIF2, 0xd40), INTC_VECT(MMCIF3, 0xd60),
+	INTC_VECT(MFI, 0xe80), /* 0xf80 according to data sheet */
+	INTC_VECT(ADC, 0xf80), INTC_VECT(CMT, 0xfa0),
+	INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
+	INTC_VECT(TMU2_TUNI, 0x440), INTC_VECT(TMU2_TICPI, 0x460),
+	INTC_VECT(WDT, 0x560),
+	INTC_VECT(REF_RCMI, 0x580), INTC_VECT(REF_ROVI, 0x5a0),
+};
+
+static struct intc_group groups[] = {
+	INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2,
+		   DMAC_DMTE3, DMAC_DMTE4, DMAC_DMTE5,
+		   DMAC_DMTE6, DMAC_DMTE7, DMAC_DMAE),
+	INTC_GROUP(DMABRG, DMABRG0, DMABRG1, DMABRG2),
+	INTC_GROUP(SCIF0, SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI),
+	INTC_GROUP(SCIF1, SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI),
+	INTC_GROUP(SCIF2, SCIF2_ERI, SCIF2_RXI, SCIF2_BRI, SCIF2_TXI),
+	INTC_GROUP(SIM, SIM_ERI, SIM_RXI, SIM_TXI, SIM_TEI),
+	INTC_GROUP(MMCIF, MMCIF0, MMCIF1, MMCIF2, MMCIF3),
+	INTC_GROUP(TMU2, TMU2_TUNI, TMU2_TICPI),
+	INTC_GROUP(REF, REF_RCMI, REF_ROVI),
+};
+
+static struct intc_prio priorities[] = {
+	INTC_PRIO(SCIF0, 3),
+	INTC_PRIO(SCIF1, 3),
+	INTC_PRIO(SCIF2, 3),
+	INTC_PRIO(SIM, 3),
+	INTC_PRIO(DMAC, 7),
+	INTC_PRIO(DMABRG, 13),
+};
+
+static struct intc_mask_reg mask_registers[] = {
+	{ 0xfe080040, 0xfe080060, 32, /* INTMSK00 / INTMSKCLR00 */
+	  { IRQ4, IRQ5, IRQ6, IRQ7, 0, 0, HCAN20, HCAN21,
+	    SSI0, SSI1, HAC0, HAC1, I2C0, I2C1, USB, LCDC,
+	    0, DMABRG0, DMABRG1, DMABRG2,
+	    SCIF0_ERI, SCIF0_RXI, SCIF0_BRI, SCIF0_TXI,
+	    SCIF1_ERI, SCIF1_RXI, SCIF1_BRI, SCIF1_TXI,
+	    SCIF2_ERI, SCIF2_RXI, SCIF2_BRI, SCIF2_TXI, } },
+	{ 0xfe080044, 0xfe080064, 32, /* INTMSK04 / INTMSKCLR04 */
+	  { 0, 0, 0, 0, 0, 0, 0, 0,
+	    SIM_ERI, SIM_RXI, SIM_TXI, SIM_TEI,
+	    HSPI, MMCIF0, MMCIF1, MMCIF2,
+	    MMCIF3, 0, 0, 0, 0, 0, 0, 0,
+	    0, MFI, 0, 0, 0, 0, ADC, CMT, } },
+};
+
+static struct intc_prio_reg prio_registers[] = {
+	{ 0xffd00004, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2 } },
+	{ 0xffd00008, 16, 4, /* IPRB */ { WDT, REF, 0, 0 } },
+	{ 0xffd0000c, 16, 4, /* IPRC */ { GPIOI, DMAC, 0, HUDI } },
+	{ 0xffd00010, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } },
+	{ 0xfe080000, 32, 4, /* INTPRI00 */ { IRQ4, IRQ5, IRQ6, IRQ7 } },
+	{ 0xfe080004, 32, 4, /* INTPRI04 */ { HCAN20, HCAN21, SSI0, SSI1,
+					      HAC0, HAC1, I2C0, I2C1 } },
+	{ 0xfe080008, 32, 4, /* INTPRI08 */ { USB, LCDC, DMABRG, SCIF0,
+					      SCIF1, SCIF2, SIM, HSPI } },
+	{ 0xfe08000c, 32, 4, /* INTPRI0C */ { 0, 0, MMCIF, 0,
+					      MFI, 0, ADC, CMT } },
+};
+
+static DECLARE_INTC_DESC(intc_desc, "sh7760", vectors, groups,
+			 priorities, mask_registers, prio_registers, NULL);
+
+static struct intc_vect vectors_irq[] = {
+	INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
+	INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360),
+};
+
+static DECLARE_INTC_DESC(intc_desc_irq, "sh7760-irq", vectors_irq, groups,
+			 priorities, mask_registers, prio_registers, NULL);
+
 static struct plat_sci_port sci_platform_data[] = {
 	{
 		.mapbase	= 0xfe600000,
@@ -29,6 +159,11 @@ static struct plat_sci_port sci_platform_data[] = {
 		.type		= PORT_SCIF,
 		.irqs		= { 76, 77, 79, 78 },
 	}, {
+		.mapbase	= 0xfe480000,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.type		= PORT_SCI,
+		.irqs		= { 80, 81, 82, 0 },
+	}, {
 		.flags = 0,
 	}
 };
@@ -52,114 +187,18 @@ static int __init sh7760_devices_setup(void)
 }
 __initcall(sh7760_devices_setup);
 
-static struct intc2_data intc2_irq_table[] = {
-	{48,  0, 28, 0, 31,  3},	/* IRQ 4 */
-	{49,  0, 24, 0, 30,  3},	/* IRQ 3 */
-	{50,  0, 20, 0, 29,  3},	/* IRQ 2 */
-	{51,  0, 16, 0, 28,  3},	/* IRQ 1 */
-	{56,  4, 28, 0, 25,  3},	/* HCAN2_CHAN0 */
-	{57,  4, 24, 0, 24,  3},	/* HCAN2_CHAN1 */
-	{58,  4, 20, 0, 23,  3},	/* I2S_CHAN0   */
-	{59,  4, 16, 0, 22,  3},	/* I2S_CHAN1   */
-	{60,  4, 12, 0, 21,  3},	/* AC97_CHAN0  */
-	{61,  4,  8, 0, 20,  3},	/* AC97_CHAN1  */
-	{62,  4,  4, 0, 19,  3},	/* I2C_CHAN0   */
-	{63,  4,  0, 0, 18,  3},	/* I2C_CHAN1   */
-	{52,  8, 16, 0, 11,  3},	/* SCIF0_ERI_IRQ */
-	{53,  8, 16, 0, 10,  3},	/* SCIF0_RXI_IRQ */
-	{54,  8, 16, 0,  9,  3},	/* SCIF0_BRI_IRQ */
-	{55,  8, 16, 0,  8,  3},	/* SCIF0_TXI_IRQ */
-	{64,  8, 28, 0, 17,  3},	/* USBHI_IRQ */
-	{65,  8, 24, 0, 16,  3},	/* LCDC      */
-	{68,  8, 20, 0, 14, 13},	/* DMABRGI0_IRQ */
-	{69,  8, 20, 0, 13, 13},	/* DMABRGI1_IRQ */
-	{70,  8, 20, 0, 12, 13},	/* DMABRGI2_IRQ */
-	{72,  8, 12, 0,  7,  3},	/* SCIF1_ERI_IRQ */
-	{73,  8, 12, 0,  6,  3},	/* SCIF1_RXI_IRQ */
-	{74,  8, 12, 0,  5,  3},	/* SCIF1_BRI_IRQ */
-	{75,  8, 12, 0,  4,  3},	/* SCIF1_TXI_IRQ */
-	{76,  8,  8, 0,  3,  3},	/* SCIF2_ERI_IRQ */
-	{77,  8,  8, 0,  2,  3},	/* SCIF2_RXI_IRQ */
-	{78,  8,  8, 0,  1,  3},	/* SCIF2_BRI_IRQ */
-	{79,  8,  8, 0,  0,  3},	/* SCIF2_TXI_IRQ */
-	{80,  8,  4, 4, 23,  3},	/* SIM_ERI */
-	{81,  8,  4, 4, 22,  3},	/* SIM_RXI */
-	{82,  8,  4, 4, 21,  3},	/* SIM_TXI */
-	{83,  8,  4, 4, 20,  3},	/* SIM_TEI */
-	{84,  8,  0, 4, 19,  3},	/* HSPII */
-	{88, 12, 20, 4, 18,  3},	/* MMCI0 */
-	{89, 12, 20, 4, 17,  3},	/* MMCI1 */
-	{90, 12, 20, 4, 16,  3},	/* MMCI2 */
-	{91, 12, 20, 4, 15,  3},	/* MMCI3 */
-	{92, 12, 12, 4,  6,  3},	/* MFI */
-	{108,12,  4, 4,  1,  3},	/* ADC  */
-	{109,12,  0, 4,  0,  3},	/* CMTI */
-};
-
-static struct intc2_desc intc2_irq_desc __read_mostly = {
-	.prio_base	= 0xfe080000,
-	.msk_base	= 0xfe080040,
-	.mskclr_base	= 0xfe080060,
-
-	.intc2_data	= intc2_irq_table,
-	.nr_irqs	= ARRAY_SIZE(intc2_irq_table),
-
-	.chip = {
-		.name	= "INTC2-sh7760",
-	},
-};
-
-static struct ipr_data ipr_irq_table[] = {
-	/* IRQ, IPR-idx, shift, priority */
-	{ 16, 0, 12, 2 }, /* TMU0 TUNI*/
-	{ 17, 0,  8, 2 }, /* TMU1 TUNI */
-	{ 18, 0,  4, 2 }, /* TMU2 TUNI */
-	{ 19, 0,  4, 2 }, /* TMU2 TIPCI */
-	{ 27, 1, 12, 2 }, /* WDT ITI */
-	{ 28, 1,  8, 2 }, /* REF RCMI */
-	{ 29, 1,  8, 2 }, /* REF ROVI */
-	{ 32, 2,  0, 7 }, /* HUDI */
-	{ 33, 2, 12, 7 }, /* GPIOI */
-	{ 34, 2,  8, 7 }, /* DMAC DMTE0 */
-	{ 35, 2,  8, 7 }, /* DMAC DMTE1 */
-	{ 36, 2,  8, 7 }, /* DMAC DMTE2 */
-	{ 37, 2,  8, 7 }, /* DMAC DMTE3 */
-	{ 38, 2,  8, 7 }, /* DMAC DMAE */
-	{ 44, 2,  8, 7 }, /* DMAC DMTE4 */
-	{ 45, 2,  8, 7 }, /* DMAC DMTE5 */
-	{ 46, 2,  8, 7 }, /* DMAC DMTE6 */
-	{ 47, 2,  8, 7 }, /* DMAC DMTE7 */
-/* these here are only valid if INTC_ICR bit 7 is set to 1!
- * XXX: maybe CONFIG_SH_IRLMODE symbol? SH7751 could use it too */
-#if 0
-	{  2, 3, 12, 3 }, /* IRL0 */
-	{  5, 3,  8, 3 }, /* IRL1 */
-	{  8, 3,  4, 3 }, /* IRL2 */
-	{ 11, 3,  0, 3 }, /* IRL3 */
-#endif
-};
-
-static unsigned long ipr_offsets[] = {
-	0xffd00004UL,	/* 0: IPRA */
-	0xffd00008UL,	/* 1: IPRB */
-	0xffd0000cUL,	/* 2: IPRC */
-	0xffd00010UL,	/* 3: IPRD */
-};
-
-static struct ipr_desc ipr_irq_desc = {
-	.ipr_offsets	= ipr_offsets,
-	.nr_offsets	= ARRAY_SIZE(ipr_offsets),
-
-	.ipr_data	= ipr_irq_table,
-	.nr_irqs	= ARRAY_SIZE(ipr_irq_table),
-
-	.chip = {
-		.name	= "IPR-sh7760",
-	},
-};
+void __init plat_irq_setup_pins(int mode)
+{
+	switch (mode) {
+	case IRQ_MODE_IRQ:
+		register_intc_controller(&intc_desc_irq);
+		break;
+	default:
+		BUG();
+	}
+}
 
 void __init plat_irq_setup(void)
 {
-	register_intc2_controller(&intc2_irq_desc);
-	register_ipr_controller(&ipr_irq_desc);
+	register_intc_controller(&intc_desc);
 }