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sh: intc - add support for 7722 processor
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This patch converts the cpu specific 7722 setup code to use the
new intc controller. Many new vectors are added and also support
for external interrupt sense configuration. So with this patch
it is now possible to configure external interrupt pins as edge
or level triggered using set_irq_type().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Magnus Damm authored and Paul Mundt committed Jul 20, 2007
1 parent 02ab3f7 commit 1b06428
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Showing 3 changed files with 131 additions and 31 deletions.
158 changes: 129 additions & 29 deletions arch/sh/kernel/cpu/sh4a/setup-sh7722.c
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Original file line number Diff line number Diff line change
Expand Up @@ -57,45 +57,145 @@ static int __init sh7722_devices_setup(void)
}
__initcall(sh7722_devices_setup);

static struct ipr_data ipr_irq_table[] = {
/* IRQ, IPR-idx, shift, prio */
{ 16, 0, 12, 2 }, /* TMU0 */
{ 17, 0, 8, 2 }, /* TMU1 */
{ 80, 6, 12, 3 }, /* SCIF0 */
{ 81, 6, 8, 3 }, /* SCIF1 */
{ 82, 6, 4, 3 }, /* SCIF2 */
enum {
UNUSED=0,

/* interrupt sources */
IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7,
HUDI,
SIM_ERI, SIM_RXI, SIM_TXI, SIM_TEI,
RTC_ATI, RTC_PRI, RTC_CUI,
DMAC0, DMAC1, DMAC2, DMAC3,
VIO_CEUI, VIO_BEUI, VIO_VEUI, VOU,
VPU, TPU,
USB_USBI0, USB_USBI1,
DMAC4, DMAC5, DMAC_DADERR,
KEYSC,
SCIF0, SCIF1, SCIF2, SIOF0, SIOF1, SIO,
FLCTL_FLSTEI, FLCTL_FLENDI, FLCTL_FLTREQ0I, FLCTL_FLTREQ1I,
I2C_ALI, I2C_TACKI, I2C_WAITI, I2C_DTEI,
SDHI0, SDHI1, SDHI2, SDHI3,
CMT, TSIF, SIU, TWODG,
TMU0, TMU1, TMU2,
IRDA, JPU, LCDC,

/* interrupt groups */

SIM, RTC, DMAC0123, VIOVOU, USB, DMAC45, FLCTL, I2C, SDHI,
};

static unsigned long ipr_offsets[] = {
0xa4080000, /* 0: IPRA */
0xa4080004, /* 1: IPRB */
0xa4080008, /* 2: IPRC */
0xa408000c, /* 3: IPRD */
0xa4080010, /* 4: IPRE */
0xa4080014, /* 5: IPRF */
0xa4080018, /* 6: IPRG */
0xa408001c, /* 7: IPRH */
0xa4080020, /* 8: IPRI */
0xa4080024, /* 9: IPRJ */
0xa4080028, /* 10: IPRK */
0xa408002c, /* 11: IPRL */
static struct intc_vect vectors[] = {
INTC_VECT(IRQ0, 0x600), INTC_VECT(IRQ1, 0x620),
INTC_VECT(IRQ2, 0x640), INTC_VECT(IRQ3, 0x660),
INTC_VECT(IRQ4, 0x680), INTC_VECT(IRQ5, 0x6a0),
INTC_VECT(IRQ6, 0x6c0), INTC_VECT(IRQ7, 0x6e0),
INTC_VECT(SIM_ERI, 0x700), INTC_VECT(SIM_RXI, 0x720),
INTC_VECT(SIM_TXI, 0x740), INTC_VECT(SIM_TEI, 0x760),
INTC_VECT(RTC_ATI, 0x780), INTC_VECT(RTC_PRI, 0x7a0),
INTC_VECT(RTC_CUI, 0x7c0),
INTC_VECT(DMAC0, 0x800), INTC_VECT(DMAC1, 0x820),
INTC_VECT(DMAC2, 0x840), INTC_VECT(DMAC3, 0x860),
INTC_VECT(VIO_CEUI, 0x880), INTC_VECT(VIO_BEUI, 0x8a0),
INTC_VECT(VIO_VEUI, 0x8c0), INTC_VECT(VOU, 0x8e0),
INTC_VECT(VPU, 0x980), INTC_VECT(TPU, 0x9a0),
INTC_VECT(USB_USBI0, 0xa20), INTC_VECT(USB_USBI1, 0xa40),
INTC_VECT(DMAC4, 0xb80), INTC_VECT(DMAC5, 0xba0),
INTC_VECT(DMAC_DADERR, 0xbc0), INTC_VECT(KEYSC, 0xbe0),
INTC_VECT(SCIF0, 0xc00), INTC_VECT(SCIF1, 0xc20),
INTC_VECT(SCIF2, 0xc40), INTC_VECT(SIOF0, 0xc80),
INTC_VECT(SIOF1, 0xca0), INTC_VECT(SIO, 0xd00),
INTC_VECT(FLCTL_FLSTEI, 0xd80), INTC_VECT(FLCTL_FLENDI, 0xda0),
INTC_VECT(FLCTL_FLTREQ0I, 0xdc0), INTC_VECT(FLCTL_FLTREQ1I, 0xde0),
INTC_VECT(I2C_ALI, 0xe00), INTC_VECT(I2C_TACKI, 0xe20),
INTC_VECT(I2C_WAITI, 0xe40), INTC_VECT(I2C_DTEI, 0xe60),
INTC_VECT(SDHI0, 0xe80), INTC_VECT(SDHI1, 0xea0),
INTC_VECT(SDHI2, 0xec0), INTC_VECT(SDHI3, 0xee0),
INTC_VECT(CMT, 0xf00), INTC_VECT(TSIF, 0xf20),
INTC_VECT(SIU, 0xf80), INTC_VECT(TWODG, 0xfa0),
INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
INTC_VECT(TMU2, 0x440), INTC_VECT(IRDA, 0x480),
INTC_VECT(JPU, 0x560), INTC_VECT(LCDC, 0x580),
};

static struct ipr_desc ipr_irq_desc = {
.ipr_offsets = ipr_offsets,
.nr_offsets = ARRAY_SIZE(ipr_offsets),
static struct intc_group groups[] = {
INTC_GROUP(SIM, SIM_ERI, SIM_RXI, SIM_TXI, SIM_TEI),
INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI),
INTC_GROUP(DMAC0123, DMAC0, DMAC1, DMAC2, DMAC3),
INTC_GROUP(VIOVOU, VIO_CEUI, VIO_BEUI, VIO_VEUI, VOU),
INTC_GROUP(USB, USB_USBI0, USB_USBI1),
INTC_GROUP(DMAC45, DMAC4, DMAC5, DMAC_DADERR),
INTC_GROUP(FLCTL, FLCTL_FLSTEI, FLCTL_FLENDI,
FLCTL_FLTREQ0I, FLCTL_FLTREQ1I),
INTC_GROUP(I2C, I2C_ALI, I2C_TACKI, I2C_WAITI, I2C_DTEI),
INTC_GROUP(SDHI, SDHI0, SDHI1, SDHI2, SDHI3),
};

.ipr_data = ipr_irq_table,
.nr_irqs = ARRAY_SIZE(ipr_irq_table),
static struct intc_prio priorities[] = {
INTC_PRIO(SCIF0, 3),
INTC_PRIO(SCIF1, 3),
INTC_PRIO(SCIF2, 3),
INTC_PRIO(TMU0, 2),
INTC_PRIO(TMU1, 2),
};

.chip = {
.name = "IPR-sh7722",
},
static struct intc_mask_reg mask_registers[] = {
{ 0xa4080080, 0xa40800c0, 8, /* IMR0 / IMCR0 */
{ } },
{ 0xa4080084, 0xa40800c4, 8, /* IMR1 / IMCR1 */
{ VOU, VIO_VEUI, VIO_BEUI, VIO_CEUI, DMAC3, DMAC2, DMAC1, DMAC0 } },
{ 0xa4080088, 0xa40800c8, 8, /* IMR2 / IMCR2 */
{ 0, 0, 0, VPU, } },
{ 0xa408008c, 0xa40800cc, 8, /* IMR3 / IMCR3 */
{ SIM_TEI, SIM_TXI, SIM_RXI, SIM_ERI, 0, 0, 0, IRDA } },
{ 0xa4080090, 0xa40800d0, 8, /* IMR4 / IMCR4 */
{ 0, TMU2, TMU1, TMU0, JPU, 0, 0, LCDC } },
{ 0xa4080094, 0xa40800d4, 8, /* IMR5 / IMCR5 */
{ KEYSC, DMAC_DADERR, DMAC5, DMAC4, 0, SCIF2, SCIF1, SCIF0 } },
{ 0xa4080098, 0xa40800d8, 8, /* IMR6 / IMCR6 */
{ 0, 0, 0, SIO, 0, 0, SIOF1, SIOF0 } },
{ 0xa408009c, 0xa40800dc, 8, /* IMR7 / IMCR7 */
{ I2C_DTEI, I2C_WAITI, I2C_TACKI, I2C_ALI,
FLCTL_FLTREQ1I, FLCTL_FLTREQ0I, FLCTL_FLENDI, FLCTL_FLSTEI } },
{ 0xa40800a0, 0xa40800e0, 8, /* IMR8 / IMCR8 */
{ SDHI3, SDHI2, SDHI1, SDHI0, 0, 0, TWODG, SIU } },
{ 0xa40800a4, 0xa40800e4, 8, /* IMR9 / IMCR9 */
{ 0, 0, 0, CMT, 0, USB_USBI1, USB_USBI0, } },
{ 0xa40800a8, 0xa40800e8, 8, /* IMR10 / IMCR10 */
{ } },
{ 0xa40800ac, 0xa40800ec, 8, /* IMR11 / IMCR11 */
{ 0, RTC_CUI, RTC_PRI, RTC_ATI, 0, TPU, 0, TSIF } },
{ 0xa4140044, 0xa4140064, 8, /* INTMSK00 / INTMSKCLR00 */
{ IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
};

static struct intc_prio_reg prio_registers[] = {
{ 0xa4080000, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, IRDA } },
{ 0xa4080004, 16, 4, /* IPRB */ { JPU, LCDC, SIM } },
{ 0xa4080008, 16, 4, /* IPRC */ { } },
{ 0xa408000c, 16, 4, /* IPRD */ { } },
{ 0xa4080010, 16, 4, /* IPRE */ { DMAC0123, VIOVOU, 0, VPU } },
{ 0xa4080014, 16, 4, /* IPRF */ { KEYSC, DMAC45, USB, CMT } },
{ 0xa4080018, 16, 4, /* IPRG */ { SCIF0, SCIF1, SCIF2 } },
{ 0xa408001c, 16, 4, /* IPRH */ { SIOF0, SIOF1, FLCTL, I2C } },
{ 0xa4080020, 16, 4, /* IPRI */ { SIO, 0, TSIF, RTC } },
{ 0xa4080024, 16, 4, /* IPRJ */ { 0, 0, SIU } },
{ 0xa4080028, 16, 4, /* IPRK */ { 0, 0, 0, SDHI } },
{ 0xa408002c, 16, 4, /* IPRL */ { TWODG, 0, TPU } },
{ 0xa4140010, 32, 4, /* INTPRI00 */
{ IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
};

static struct intc_sense_reg sense_registers[] = {
{ 0xa414001c, 16, 2, /* ICR1 */
{ IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 } },
};

static DECLARE_INTC_DESC(intc_desc, "sh7722", vectors, groups, priorities,
mask_registers, prio_registers, sense_registers);

void __init init_IRQ_ipr(void)
{
register_ipr_controller(&ipr_irq_desc);
register_intc_controller(&intc_desc);
}

void __init plat_mem_setup(void)
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2 changes: 1 addition & 1 deletion arch/sh/mm/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -217,7 +217,7 @@ config CPU_SUBTYPE_SH7722
bool "Support SH7722 processor"
select CPU_SH4AL_DSP
select CPU_SHX2
select CPU_HAS_IPR_IRQ
select CPU_HAS_INTC_IRQ
select ARCH_SPARSEMEM_ENABLE
select SYS_SUPPORTS_NUMA

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2 changes: 1 addition & 1 deletion include/asm-sh/hw_irq.h
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Original file line number Diff line number Diff line change
Expand Up @@ -105,7 +105,7 @@ struct intc_desc {
#define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
#define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \
priorities, mask_regs, prio_regs, sense_regs) \
static struct intc_desc symbol = { \
struct intc_desc symbol = { \
_INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
_INTC_ARRAY(priorities), \
_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
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